5624 lines
156 KiB
C
5624 lines
156 KiB
C
/* Update the symbol table (the .T file) in a MIPS object to
|
||
contain debugging information specified by the GNU compiler
|
||
in the form of comments (the mips assembler does not support
|
||
assembly access to debug information).
|
||
Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001
|
||
Free Software Foundation, Inc.
|
||
Contributed by Michael Meissner (meissner@cygnus.com).
|
||
|
||
This file is part of GCC.
|
||
|
||
GCC is free software; you can redistribute it and/or modify it under
|
||
the terms of the GNU General Public License as published by the Free
|
||
Software Foundation; either version 2, or (at your option) any later
|
||
version.
|
||
|
||
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
||
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GCC; see the file COPYING. If not, write to the Free
|
||
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
||
02111-1307, USA. */
|
||
|
||
|
||
/* Here is a brief description of the MIPS ECOFF symbol table. The
|
||
MIPS symbol table has the following pieces:
|
||
|
||
Symbolic Header
|
||
|
|
||
+-- Auxiliary Symbols
|
||
|
|
||
+-- Dense number table
|
||
|
|
||
+-- Optimizer Symbols
|
||
|
|
||
+-- External Strings
|
||
|
|
||
+-- External Symbols
|
||
|
|
||
+-- Relative file descriptors
|
||
|
|
||
+-- File table
|
||
|
|
||
+-- Procedure table
|
||
|
|
||
+-- Line number table
|
||
|
|
||
+-- Local Strings
|
||
|
|
||
+-- Local Symbols
|
||
|
||
The symbolic header points to each of the other tables, and also
|
||
contains the number of entries. It also contains a magic number
|
||
and MIPS compiler version number, such as 2.0.
|
||
|
||
The auxiliary table is a series of 32 bit integers, that are
|
||
referenced as needed from the local symbol table. Unlike standard
|
||
COFF, the aux. information does not follow the symbol that uses
|
||
it, but rather is a separate table. In theory, this would allow
|
||
the MIPS compilers to collapse duplicate aux. entries, but I've not
|
||
noticed this happening with the 1.31 compiler suite. The different
|
||
types of aux. entries are:
|
||
|
||
1) dnLow: Low bound on array dimension.
|
||
|
||
2) dnHigh: High bound on array dimension.
|
||
|
||
3) isym: Index to the local symbol which is the start of the
|
||
function for the end of function first aux. entry.
|
||
|
||
4) width: Width of structures and bitfields.
|
||
|
||
5) count: Count of ranges for variant part.
|
||
|
||
6) rndx: A relative index into the symbol table. The relative
|
||
index field has two parts: rfd which is a pointer into the
|
||
relative file index table or ST_RFDESCAPE which says the next
|
||
aux. entry is the file number, and index: which is the pointer
|
||
into the local symbol within a given file table. This is for
|
||
things like references to types defined in another file.
|
||
|
||
7) Type information: This is like the COFF type bits, except it
|
||
is 32 bits instead of 16; they still have room to add new
|
||
basic types; and they can handle more than 6 levels of array,
|
||
pointer, function, etc. Each type information field contains
|
||
the following structure members:
|
||
|
||
a) fBitfield: a bit that says this is a bitfield, and the
|
||
size in bits follows as the next aux. entry.
|
||
|
||
b) continued: a bit that says the next aux. entry is a
|
||
continuation of the current type information (in case
|
||
there are more than 6 levels of array/ptr/function).
|
||
|
||
c) bt: an integer containing the base type before adding
|
||
array, pointer, function, etc. qualifiers. The
|
||
current base types that I have documentation for are:
|
||
|
||
btNil -- undefined
|
||
btAdr -- address - integer same size as ptr
|
||
btChar -- character
|
||
btUChar -- unsigned character
|
||
btShort -- short
|
||
btUShort -- unsigned short
|
||
btInt -- int
|
||
btUInt -- unsigned int
|
||
btLong -- long
|
||
btULong -- unsigned long
|
||
btFloat -- float (real)
|
||
btDouble -- Double (real)
|
||
btStruct -- Structure (Record)
|
||
btUnion -- Union (variant)
|
||
btEnum -- Enumerated
|
||
btTypedef -- defined via a typedef isymRef
|
||
btRange -- subrange of int
|
||
btSet -- pascal sets
|
||
btComplex -- fortran complex
|
||
btDComplex -- fortran double complex
|
||
btIndirect -- forward or unnamed typedef
|
||
btFixedDec -- Fixed Decimal
|
||
btFloatDec -- Float Decimal
|
||
btString -- Varying Length Character String
|
||
btBit -- Aligned Bit String
|
||
btPicture -- Picture
|
||
btVoid -- Void (MIPS cc revision >= 2.00)
|
||
|
||
d) tq0 - tq5: type qualifier fields as needed. The
|
||
current type qualifier fields I have documentation for
|
||
are:
|
||
|
||
tqNil -- no more qualifiers
|
||
tqPtr -- pointer
|
||
tqProc -- procedure
|
||
tqArray -- array
|
||
tqFar -- 8086 far pointers
|
||
tqVol -- volatile
|
||
|
||
|
||
The dense number table is used in the front ends, and disappears by
|
||
the time the .o is created.
|
||
|
||
With the 1.31 compiler suite, the optimization symbols don't seem
|
||
to be used as far as I can tell.
|
||
|
||
The linker is the first entity that creates the relative file
|
||
descriptor table, and I believe it is used so that the individual
|
||
file table pointers don't have to be rewritten when the objects are
|
||
merged together into the program file.
|
||
|
||
Unlike COFF, the basic symbol & string tables are split into
|
||
external and local symbols/strings. The relocation information
|
||
only goes off of the external symbol table, and the debug
|
||
information only goes off of the internal symbol table. The
|
||
external symbols can have links to an appropriate file index and
|
||
symbol within the file to give it the appropriate type information.
|
||
Because of this, the external symbols are actually larger than the
|
||
internal symbols (to contain the link information), and contain the
|
||
local symbol structure as a member, though this member is not the
|
||
first member of the external symbol structure (!). I suspect this
|
||
split is to make strip easier to deal with.
|
||
|
||
Each file table has offsets for where the line numbers, local
|
||
strings, local symbols, and procedure table starts from within the
|
||
global tables, and the indexs are reset to 0 for each of those
|
||
tables for the file.
|
||
|
||
The procedure table contains the binary equivalents of the .ent
|
||
(start of the function address), .frame (what register is the
|
||
virtual frame pointer, constant offset from the register to obtain
|
||
the VFP, and what register holds the return address), .mask/.fmask
|
||
(bitmask of saved registers, and where the first register is stored
|
||
relative to the VFP) assembler directives. It also contains the
|
||
low and high bounds of the line numbers if debugging is turned on.
|
||
|
||
The line number table is a compressed form of the normal COFF line
|
||
table. Each line number entry is either 1 or 3 bytes long, and
|
||
contains a signed delta from the previous line, and an unsigned
|
||
count of the number of instructions this statement takes.
|
||
|
||
The local symbol table contains the following fields:
|
||
|
||
1) iss: index to the local string table giving the name of the
|
||
symbol.
|
||
|
||
2) value: value of the symbol (address, register number, etc.).
|
||
|
||
3) st: symbol type. The current symbol types are:
|
||
|
||
stNil -- Nuthin' special
|
||
stGlobal -- external symbol
|
||
stStatic -- static
|
||
stParam -- procedure argument
|
||
stLocal -- local variable
|
||
stLabel -- label
|
||
stProc -- External Procedure
|
||
stBlock -- beginning of block
|
||
stEnd -- end (of anything)
|
||
stMember -- member (of anything)
|
||
stTypedef -- type definition
|
||
stFile -- file name
|
||
stRegReloc -- register relocation
|
||
stForward -- forwarding address
|
||
stStaticProc -- Static procedure
|
||
stConstant -- const
|
||
|
||
4) sc: storage class. The current storage classes are:
|
||
|
||
scText -- text symbol
|
||
scData -- initialized data symbol
|
||
scBss -- un-initialized data symbol
|
||
scRegister -- value of symbol is register number
|
||
scAbs -- value of symbol is absolute
|
||
scUndefined -- who knows?
|
||
scCdbLocal -- variable's value is IN se->va.??
|
||
scBits -- this is a bit field
|
||
scCdbSystem -- value is IN debugger's address space
|
||
scRegImage -- register value saved on stack
|
||
scInfo -- symbol contains debugger information
|
||
scUserStruct -- addr in struct user for current process
|
||
scSData -- load time only small data
|
||
scSBss -- load time only small common
|
||
scRData -- load time only read only data
|
||
scVar -- Var parameter (fortranpascal)
|
||
scCommon -- common variable
|
||
scSCommon -- small common
|
||
scVarRegister -- Var parameter in a register
|
||
scVariant -- Variant record
|
||
scSUndefined -- small undefined(external) data
|
||
scInit -- .init section symbol
|
||
|
||
5) index: pointer to a local symbol or aux. entry.
|
||
|
||
|
||
|
||
For the following program:
|
||
|
||
#include <stdio.h>
|
||
|
||
main(){
|
||
printf("Hello World!\n");
|
||
return 0;
|
||
}
|
||
|
||
Mips-tdump produces the following information:
|
||
|
||
Global file header:
|
||
magic number 0x162
|
||
# sections 2
|
||
timestamp 645311799, Wed Jun 13 17:16:39 1990
|
||
symbolic header offset 284
|
||
symbolic header size 96
|
||
optional header 56
|
||
flags 0x0
|
||
|
||
Symbolic header, magic number = 0x7009, vstamp = 1.31:
|
||
|
||
Info Offset Number Bytes
|
||
==== ====== ====== =====
|
||
|
||
Line numbers 380 4 4 [13]
|
||
Dense numbers 0 0 0
|
||
Procedures Tables 384 1 52
|
||
Local Symbols 436 16 192
|
||
Optimization Symbols 0 0 0
|
||
Auxiliary Symbols 628 39 156
|
||
Local Strings 784 80 80
|
||
External Strings 864 144 144
|
||
File Tables 1008 2 144
|
||
Relative Files 0 0 0
|
||
External Symbols 1152 20 320
|
||
|
||
File #0, "hello2.c"
|
||
|
||
Name index = 1 Readin = No
|
||
Merge = No Endian = LITTLE
|
||
Debug level = G2 Language = C
|
||
Adr = 0x00000000
|
||
|
||
Info Start Number Size Offset
|
||
==== ===== ====== ==== ======
|
||
Local strings 0 15 15 784
|
||
Local symbols 0 6 72 436
|
||
Line numbers 0 13 13 380
|
||
Optimization symbols 0 0 0 0
|
||
Procedures 0 1 52 384
|
||
Auxiliary symbols 0 14 56 628
|
||
Relative Files 0 0 0 0
|
||
|
||
There are 6 local symbols, starting at 436
|
||
|
||
Symbol# 0: "hello2.c"
|
||
End+1 symbol = 6
|
||
String index = 1
|
||
Storage class = Text Index = 6
|
||
Symbol type = File Value = 0
|
||
|
||
Symbol# 1: "main"
|
||
End+1 symbol = 5
|
||
Type = int
|
||
String index = 10
|
||
Storage class = Text Index = 12
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 2: ""
|
||
End+1 symbol = 4
|
||
String index = 0
|
||
Storage class = Text Index = 4
|
||
Symbol type = Block Value = 8
|
||
|
||
Symbol# 3: ""
|
||
First symbol = 2
|
||
String index = 0
|
||
Storage class = Text Index = 2
|
||
Symbol type = End Value = 28
|
||
|
||
Symbol# 4: "main"
|
||
First symbol = 1
|
||
String index = 10
|
||
Storage class = Text Index = 1
|
||
Symbol type = End Value = 52
|
||
|
||
Symbol# 5: "hello2.c"
|
||
First symbol = 0
|
||
String index = 1
|
||
Storage class = Text Index = 0
|
||
Symbol type = End Value = 0
|
||
|
||
There are 14 auxiliary table entries, starting at 628.
|
||
|
||
* #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
|
||
* #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
|
||
* #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
|
||
* #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
|
||
* #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
|
||
* #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
|
||
* #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
|
||
* #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
|
||
* #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
|
||
* #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
|
||
* #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
|
||
#12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
|
||
#13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
|
||
|
||
There are 1 procedure descriptor entries, starting at 0.
|
||
|
||
Procedure descriptor 0:
|
||
Name index = 10 Name = "main"
|
||
.mask 0x80000000,-4 .fmask 0x00000000,0
|
||
.frame $29,24,$31
|
||
Opt. start = -1 Symbols start = 1
|
||
First line # = 3 Last line # = 6
|
||
Line Offset = 0 Address = 0x00000000
|
||
|
||
There are 4 bytes holding line numbers, starting at 380.
|
||
Line 3, delta 0, count 2
|
||
Line 4, delta 1, count 3
|
||
Line 5, delta 1, count 2
|
||
Line 6, delta 1, count 6
|
||
|
||
File #1, "/usr/include/stdio.h"
|
||
|
||
Name index = 1 Readin = No
|
||
Merge = Yes Endian = LITTLE
|
||
Debug level = G2 Language = C
|
||
Adr = 0x00000000
|
||
|
||
Info Start Number Size Offset
|
||
==== ===== ====== ==== ======
|
||
Local strings 15 65 65 799
|
||
Local symbols 6 10 120 508
|
||
Line numbers 0 0 0 380
|
||
Optimization symbols 0 0 0 0
|
||
Procedures 1 0 0 436
|
||
Auxiliary symbols 14 25 100 684
|
||
Relative Files 0 0 0 0
|
||
|
||
There are 10 local symbols, starting at 442
|
||
|
||
Symbol# 0: "/usr/include/stdio.h"
|
||
End+1 symbol = 10
|
||
String index = 1
|
||
Storage class = Text Index = 10
|
||
Symbol type = File Value = 0
|
||
|
||
Symbol# 1: "_iobuf"
|
||
End+1 symbol = 9
|
||
String index = 22
|
||
Storage class = Info Index = 9
|
||
Symbol type = Block Value = 20
|
||
|
||
Symbol# 2: "_cnt"
|
||
Type = int
|
||
String index = 29
|
||
Storage class = Info Index = 4
|
||
Symbol type = Member Value = 0
|
||
|
||
Symbol# 3: "_ptr"
|
||
Type = ptr to char
|
||
String index = 34
|
||
Storage class = Info Index = 15
|
||
Symbol type = Member Value = 32
|
||
|
||
Symbol# 4: "_base"
|
||
Type = ptr to char
|
||
String index = 39
|
||
Storage class = Info Index = 16
|
||
Symbol type = Member Value = 64
|
||
|
||
Symbol# 5: "_bufsiz"
|
||
Type = int
|
||
String index = 45
|
||
Storage class = Info Index = 4
|
||
Symbol type = Member Value = 96
|
||
|
||
Symbol# 6: "_flag"
|
||
Type = short
|
||
String index = 53
|
||
Storage class = Info Index = 3
|
||
Symbol type = Member Value = 128
|
||
|
||
Symbol# 7: "_file"
|
||
Type = char
|
||
String index = 59
|
||
Storage class = Info Index = 2
|
||
Symbol type = Member Value = 144
|
||
|
||
Symbol# 8: ""
|
||
First symbol = 1
|
||
String index = 0
|
||
Storage class = Info Index = 1
|
||
Symbol type = End Value = 0
|
||
|
||
Symbol# 9: "/usr/include/stdio.h"
|
||
First symbol = 0
|
||
String index = 1
|
||
Storage class = Text Index = 0
|
||
Symbol type = End Value = 0
|
||
|
||
There are 25 auxiliary table entries, starting at 642.
|
||
|
||
* #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
|
||
#15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
|
||
#16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
|
||
* #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
|
||
* #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
|
||
* #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
|
||
* #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
|
||
* #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
|
||
* #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
|
||
* #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
|
||
* #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
* #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
|
||
|
||
There are 0 procedure descriptor entries, starting at 1.
|
||
|
||
There are 20 external symbols, starting at 1152
|
||
|
||
Symbol# 0: "_iob"
|
||
Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
|
||
String index = 0 Ifd = 1
|
||
Storage class = Nil Index = 17
|
||
Symbol type = Global Value = 60
|
||
|
||
Symbol# 1: "fopen"
|
||
String index = 5 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 2: "fdopen"
|
||
String index = 11 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 3: "freopen"
|
||
String index = 18 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 4: "popen"
|
||
String index = 26 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 5: "tmpfile"
|
||
String index = 32 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 6: "ftell"
|
||
String index = 40 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 7: "rewind"
|
||
String index = 46 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 8: "setbuf"
|
||
String index = 53 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 9: "setbuffer"
|
||
String index = 60 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 10: "setlinebuf"
|
||
String index = 70 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 11: "fgets"
|
||
String index = 81 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 12: "gets"
|
||
String index = 87 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 13: "ctermid"
|
||
String index = 92 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 14: "cuserid"
|
||
String index = 100 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 15: "tempnam"
|
||
String index = 108 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 16: "tmpnam"
|
||
String index = 116 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 17: "sprintf"
|
||
String index = 123 Ifd = 1
|
||
Storage class = Nil Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 18: "main"
|
||
Type = int
|
||
String index = 131 Ifd = 0
|
||
Storage class = Text Index = 1
|
||
Symbol type = Proc Value = 0
|
||
|
||
Symbol# 19: "printf"
|
||
String index = 136 Ifd = 0
|
||
Storage class = Undefined Index = 1048575
|
||
Symbol type = Proc Value = 0
|
||
|
||
The following auxiliary table entries were unused:
|
||
|
||
#0 0 0x00000000 void
|
||
#2 8 0x00000008 char
|
||
#3 16 0x00000010 short
|
||
#4 24 0x00000018 int
|
||
#5 32 0x00000020 long
|
||
#6 40 0x00000028 float
|
||
#7 44 0x0000002c double
|
||
#8 12 0x0000000c unsigned char
|
||
#9 20 0x00000014 unsigned short
|
||
#10 28 0x0000001c unsigned int
|
||
#11 36 0x00000024 unsigned long
|
||
#14 0 0x00000000 void
|
||
#15 24 0x00000018 int
|
||
#19 32 0x00000020 long
|
||
#20 40 0x00000028 float
|
||
#21 44 0x0000002c double
|
||
#22 12 0x0000000c unsigned char
|
||
#23 20 0x00000014 unsigned short
|
||
#24 28 0x0000001c unsigned int
|
||
#25 36 0x00000024 unsigned long
|
||
#26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
|
||
|
||
*/
|
||
|
||
|
||
#include "config.h"
|
||
#include "system.h"
|
||
#include "version.h"
|
||
#include "intl.h"
|
||
|
||
#ifndef __SABER__
|
||
#define saber_stop()
|
||
#endif
|
||
|
||
#ifndef __LINE__
|
||
#define __LINE__ 0
|
||
#endif
|
||
|
||
/* Due to size_t being defined in sys/types.h and different
|
||
in stddef.h, we have to do this by hand..... Note, these
|
||
types are correct for MIPS based systems, and may not be
|
||
correct for other systems. Ultrix 4.0 and Silicon Graphics
|
||
have this fixed, but since the following is correct, and
|
||
the fact that including stddef.h gets you GCC's version
|
||
instead of the standard one it's not worth it to fix it. */
|
||
|
||
#if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
|
||
#define Size_t long unsigned int
|
||
#else
|
||
#define Size_t unsigned int
|
||
#endif
|
||
#define Ptrdiff_t long
|
||
|
||
/* The following might be called from obstack or malloc,
|
||
so they can't be static. */
|
||
|
||
extern void pfatal_with_name
|
||
PARAMS ((const char *)) ATTRIBUTE_NORETURN;
|
||
extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
|
||
void botch PARAMS ((const char *)) ATTRIBUTE_NORETURN;
|
||
|
||
extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
|
||
extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
|
||
|
||
#ifndef MIPS_DEBUGGING_INFO
|
||
|
||
static int line_number;
|
||
static int cur_line_start;
|
||
static int debug;
|
||
static int had_errors;
|
||
static const char *progname;
|
||
static const char *input_name;
|
||
|
||
int
|
||
main ()
|
||
{
|
||
fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
|
||
exit (1);
|
||
}
|
||
|
||
#else /* MIPS_DEBUGGING defined */
|
||
|
||
/* The local and global symbols have a field index, so undo any defines
|
||
of index -> strchr. */
|
||
|
||
#undef index
|
||
|
||
#include <signal.h>
|
||
|
||
#ifndef CROSS_COMPILE
|
||
#include <a.out.h>
|
||
#else
|
||
#include "mips/a.out.h"
|
||
#endif /* CROSS_COMPILE */
|
||
|
||
#include "gstab.h"
|
||
|
||
#define STAB_CODE_TYPE enum __stab_debug_code
|
||
|
||
#ifndef MALLOC_CHECK
|
||
#ifdef __SABER__
|
||
#define MALLOC_CHECK
|
||
#endif
|
||
#endif
|
||
|
||
#define IS_ASM_IDENT(ch) \
|
||
(ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
|
||
|
||
|
||
/* Redefinition of storage classes as an enumeration for better
|
||
debugging. */
|
||
|
||
typedef enum sc {
|
||
sc_Nil = scNil, /* no storage class */
|
||
sc_Text = scText, /* text symbol */
|
||
sc_Data = scData, /* initialized data symbol */
|
||
sc_Bss = scBss, /* un-initialized data symbol */
|
||
sc_Register = scRegister, /* value of symbol is register number */
|
||
sc_Abs = scAbs, /* value of symbol is absolute */
|
||
sc_Undefined = scUndefined, /* who knows? */
|
||
sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
|
||
sc_Bits = scBits, /* this is a bit field */
|
||
sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
|
||
sc_RegImage = scRegImage, /* register value saved on stack */
|
||
sc_Info = scInfo, /* symbol contains debugger information */
|
||
sc_UserStruct = scUserStruct, /* addr in struct user for current process */
|
||
sc_SData = scSData, /* load time only small data */
|
||
sc_SBss = scSBss, /* load time only small common */
|
||
sc_RData = scRData, /* load time only read only data */
|
||
sc_Var = scVar, /* Var parameter (fortran,pascal) */
|
||
sc_Common = scCommon, /* common variable */
|
||
sc_SCommon = scSCommon, /* small common */
|
||
sc_VarRegister = scVarRegister, /* Var parameter in a register */
|
||
sc_Variant = scVariant, /* Variant record */
|
||
sc_SUndefined = scSUndefined, /* small undefined(external) data */
|
||
sc_Init = scInit, /* .init section symbol */
|
||
sc_Max = scMax /* Max storage class+1 */
|
||
} sc_t;
|
||
|
||
/* Redefinition of symbol type. */
|
||
|
||
typedef enum st {
|
||
st_Nil = stNil, /* Nuthin' special */
|
||
st_Global = stGlobal, /* external symbol */
|
||
st_Static = stStatic, /* static */
|
||
st_Param = stParam, /* procedure argument */
|
||
st_Local = stLocal, /* local variable */
|
||
st_Label = stLabel, /* label */
|
||
st_Proc = stProc, /* " " Procedure */
|
||
st_Block = stBlock, /* beginning of block */
|
||
st_End = stEnd, /* end (of anything) */
|
||
st_Member = stMember, /* member (of anything - struct/union/enum */
|
||
st_Typedef = stTypedef, /* type definition */
|
||
st_File = stFile, /* file name */
|
||
st_RegReloc = stRegReloc, /* register relocation */
|
||
st_Forward = stForward, /* forwarding address */
|
||
st_StaticProc = stStaticProc, /* load time only static procs */
|
||
st_Constant = stConstant, /* const */
|
||
st_Str = stStr, /* string */
|
||
st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
|
||
st_Expr = stExpr, /* 2+2 vs. 4 */
|
||
st_Type = stType, /* post-coercion SER */
|
||
st_Max = stMax /* max type+1 */
|
||
} st_t;
|
||
|
||
/* Redefinition of type qualifiers. */
|
||
|
||
typedef enum tq {
|
||
tq_Nil = tqNil, /* bt is what you see */
|
||
tq_Ptr = tqPtr, /* pointer */
|
||
tq_Proc = tqProc, /* procedure */
|
||
tq_Array = tqArray, /* duh */
|
||
tq_Far = tqFar, /* longer addressing - 8086/8 land */
|
||
tq_Vol = tqVol, /* volatile */
|
||
tq_Max = tqMax /* Max type qualifier+1 */
|
||
} tq_t;
|
||
|
||
/* Redefinition of basic types. */
|
||
|
||
typedef enum bt {
|
||
bt_Nil = btNil, /* undefined */
|
||
bt_Adr = btAdr, /* address - integer same size as pointer */
|
||
bt_Char = btChar, /* character */
|
||
bt_UChar = btUChar, /* unsigned character */
|
||
bt_Short = btShort, /* short */
|
||
bt_UShort = btUShort, /* unsigned short */
|
||
bt_Int = btInt, /* int */
|
||
bt_UInt = btUInt, /* unsigned int */
|
||
bt_Long = btLong, /* long */
|
||
bt_ULong = btULong, /* unsigned long */
|
||
bt_Float = btFloat, /* float (real) */
|
||
bt_Double = btDouble, /* Double (real) */
|
||
bt_Struct = btStruct, /* Structure (Record) */
|
||
bt_Union = btUnion, /* Union (variant) */
|
||
bt_Enum = btEnum, /* Enumerated */
|
||
bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
|
||
bt_Range = btRange, /* subrange of int */
|
||
bt_Set = btSet, /* pascal sets */
|
||
bt_Complex = btComplex, /* fortran complex */
|
||
bt_DComplex = btDComplex, /* fortran double complex */
|
||
bt_Indirect = btIndirect, /* forward or unnamed typedef */
|
||
bt_FixedDec = btFixedDec, /* Fixed Decimal */
|
||
bt_FloatDec = btFloatDec, /* Float Decimal */
|
||
bt_String = btString, /* Varying Length Character String */
|
||
bt_Bit = btBit, /* Aligned Bit String */
|
||
bt_Picture = btPicture, /* Picture */
|
||
|
||
#ifdef btVoid
|
||
bt_Void = btVoid, /* Void */
|
||
#else
|
||
#define bt_Void bt_Nil
|
||
#endif
|
||
|
||
bt_Max = btMax /* Max basic type+1 */
|
||
} bt_t;
|
||
|
||
|
||
|
||
/* Basic COFF storage classes. */
|
||
enum coff_storage {
|
||
C_EFCN = -1,
|
||
C_NULL = 0,
|
||
C_AUTO = 1,
|
||
C_EXT = 2,
|
||
C_STAT = 3,
|
||
C_REG = 4,
|
||
C_EXTDEF = 5,
|
||
C_LABEL = 6,
|
||
C_ULABEL = 7,
|
||
C_MOS = 8,
|
||
C_ARG = 9,
|
||
C_STRTAG = 10,
|
||
C_MOU = 11,
|
||
C_UNTAG = 12,
|
||
C_TPDEF = 13,
|
||
C_USTATIC = 14,
|
||
C_ENTAG = 15,
|
||
C_MOE = 16,
|
||
C_REGPARM = 17,
|
||
C_FIELD = 18,
|
||
C_BLOCK = 100,
|
||
C_FCN = 101,
|
||
C_EOS = 102,
|
||
C_FILE = 103,
|
||
C_LINE = 104,
|
||
C_ALIAS = 105,
|
||
C_HIDDEN = 106,
|
||
C_MAX = 107
|
||
} coff_storage_t;
|
||
|
||
/* Regular COFF fundamental type. */
|
||
typedef enum coff_type {
|
||
T_NULL = 0,
|
||
T_ARG = 1,
|
||
T_CHAR = 2,
|
||
T_SHORT = 3,
|
||
T_INT = 4,
|
||
T_LONG = 5,
|
||
T_FLOAT = 6,
|
||
T_DOUBLE = 7,
|
||
T_STRUCT = 8,
|
||
T_UNION = 9,
|
||
T_ENUM = 10,
|
||
T_MOE = 11,
|
||
T_UCHAR = 12,
|
||
T_USHORT = 13,
|
||
T_UINT = 14,
|
||
T_ULONG = 15,
|
||
T_MAX = 16
|
||
} coff_type_t;
|
||
|
||
/* Regular COFF derived types. */
|
||
typedef enum coff_dt {
|
||
DT_NON = 0,
|
||
DT_PTR = 1,
|
||
DT_FCN = 2,
|
||
DT_ARY = 3,
|
||
DT_MAX = 4
|
||
} coff_dt_t;
|
||
|
||
#define N_BTMASK 017 /* bitmask to isolate basic type */
|
||
#define N_TMASK 003 /* bitmask to isolate derived type */
|
||
#define N_BT_SHIFT 4 /* # bits to shift past basic type */
|
||
#define N_TQ_SHIFT 2 /* # bits to shift derived types */
|
||
#define N_TQ 6 /* # of type qualifiers */
|
||
|
||
/* States for whether to hash type or not. */
|
||
typedef enum hash_state {
|
||
hash_no = 0, /* don't hash type */
|
||
hash_yes = 1, /* ok to hash type, or use previous hash */
|
||
hash_record = 2 /* ok to record hash, but don't use prev. */
|
||
} hash_state_t;
|
||
|
||
|
||
/* Types of different sized allocation requests. */
|
||
enum alloc_type {
|
||
alloc_type_none, /* dummy value */
|
||
alloc_type_scope, /* nested scopes linked list */
|
||
alloc_type_vlinks, /* glue linking pages in varray */
|
||
alloc_type_shash, /* string hash element */
|
||
alloc_type_thash, /* type hash element */
|
||
alloc_type_tag, /* struct/union/tag element */
|
||
alloc_type_forward, /* element to hold unknown tag */
|
||
alloc_type_thead, /* head of type hash list */
|
||
alloc_type_varray, /* general varray allocation */
|
||
alloc_type_last /* last+1 element for array bounds */
|
||
};
|
||
|
||
|
||
#define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
|
||
#define DWORD_ALIGN(x) (((x) + 7) & ~7)
|
||
|
||
|
||
/* Structures to provide n-number of virtual arrays, each of which can
|
||
grow linearly, and which are written in the object file as sequential
|
||
pages. On systems with a BSD malloc that define USE_MALLOC, the
|
||
MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
|
||
adds its overhead, and rounds up to the next power of 2. Pages are
|
||
linked together via a linked list.
|
||
|
||
If PAGE_SIZE is > 4096, the string length in the shash_t structure
|
||
can't be represented (assuming there are strings > 4096 bytes). */
|
||
|
||
#ifndef PAGE_SIZE
|
||
#define PAGE_SIZE 4096 /* size of varray pages */
|
||
#endif
|
||
|
||
#define PAGE_USIZE ((Size_t) PAGE_SIZE)
|
||
|
||
|
||
#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
|
||
#ifndef USE_MALLOC /* in one memory request */
|
||
#define MAX_CLUSTER_PAGES 64
|
||
#else
|
||
#define MAX_CLUSTER_PAGES 63
|
||
#endif
|
||
#endif
|
||
|
||
|
||
/* Linked list connecting separate page allocations. */
|
||
typedef struct vlinks {
|
||
struct vlinks *prev; /* previous set of pages */
|
||
struct vlinks *next; /* next set of pages */
|
||
union page *datum; /* start of page */
|
||
unsigned long start_index; /* starting index # of page */
|
||
} vlinks_t;
|
||
|
||
|
||
/* Virtual array header. */
|
||
typedef struct varray {
|
||
vlinks_t *first; /* first page link */
|
||
vlinks_t *last; /* last page link */
|
||
unsigned long num_allocated; /* # objects allocated */
|
||
unsigned short object_size; /* size in bytes of each object */
|
||
unsigned short objects_per_page; /* # objects that can fit on a page */
|
||
unsigned short objects_last_page; /* # objects allocated on last page */
|
||
} varray_t;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
|
||
#else
|
||
#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
|
||
#endif
|
||
|
||
#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
|
||
(vlinks_t *) 0, /* first */ \
|
||
(vlinks_t *) 0, /* last */ \
|
||
0, /* num_allocated */ \
|
||
sizeof (type), /* object_size */ \
|
||
OBJECTS_PER_PAGE (type), /* objects_per_page */ \
|
||
OBJECTS_PER_PAGE (type), /* objects_last_page */ \
|
||
}
|
||
|
||
/* Master type for indexes within the symbol table. */
|
||
typedef unsigned long symint_t;
|
||
|
||
|
||
/* Linked list support for nested scopes (file, block, structure, etc.). */
|
||
typedef struct scope {
|
||
struct scope *prev; /* previous scope level */
|
||
struct scope *free; /* free list pointer */
|
||
SYMR *lsym; /* pointer to local symbol node */
|
||
symint_t lnumber; /* lsym index */
|
||
st_t type; /* type of the node */
|
||
} scope_t;
|
||
|
||
|
||
/* Forward reference list for tags referenced, but not yet defined. */
|
||
typedef struct forward {
|
||
struct forward *next; /* next forward reference */
|
||
struct forward *free; /* free list pointer */
|
||
AUXU *ifd_ptr; /* pointer to store file index */
|
||
AUXU *index_ptr; /* pointer to store symbol index */
|
||
AUXU *type_ptr; /* pointer to munge type info */
|
||
} forward_t;
|
||
|
||
|
||
/* Linked list support for tags. The first tag in the list is always
|
||
the current tag for that block. */
|
||
typedef struct tag {
|
||
struct tag *free; /* free list pointer */
|
||
struct shash *hash_ptr; /* pointer to the hash table head */
|
||
struct tag *same_name; /* tag with same name in outer scope */
|
||
struct tag *same_block; /* next tag defined in the same block. */
|
||
struct forward *forward_ref; /* list of forward references */
|
||
bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
|
||
symint_t ifd; /* file # tag defined in */
|
||
symint_t indx; /* index within file's local symbols */
|
||
} tag_t;
|
||
|
||
|
||
/* Head of a block's linked list of tags. */
|
||
typedef struct thead {
|
||
struct thead *prev; /* previous block */
|
||
struct thead *free; /* free list pointer */
|
||
struct tag *first_tag; /* first tag in block defined */
|
||
} thead_t;
|
||
|
||
|
||
/* Union containing pointers to each the small structures which are freed up. */
|
||
typedef union small_free {
|
||
scope_t *f_scope; /* scope structure */
|
||
thead_t *f_thead; /* tag head structure */
|
||
tag_t *f_tag; /* tag element structure */
|
||
forward_t *f_forward; /* forward tag reference */
|
||
} small_free_t;
|
||
|
||
|
||
/* String hash table support. The size of the hash table must fit
|
||
within a page. */
|
||
|
||
#ifndef SHASH_SIZE
|
||
#define SHASH_SIZE 1009
|
||
#endif
|
||
|
||
#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
|
||
|
||
typedef struct shash {
|
||
struct shash *next; /* next hash value */
|
||
char *string; /* string we are hashing */
|
||
symint_t len; /* string length */
|
||
symint_t indx; /* index within string table */
|
||
EXTR *esym_ptr; /* global symbol pointer */
|
||
SYMR *sym_ptr; /* local symbol pointer */
|
||
SYMR *end_ptr; /* symbol pointer to end block */
|
||
tag_t *tag_ptr; /* tag pointer */
|
||
PDR *proc_ptr; /* procedure descriptor pointer */
|
||
} shash_t;
|
||
|
||
|
||
/* Type hash table support. The size of the hash table must fit
|
||
within a page with the other extended file descriptor information.
|
||
Because unique types which are hashed are fewer in number than
|
||
strings, we use a smaller hash value. */
|
||
|
||
#ifndef THASH_SIZE
|
||
#define THASH_SIZE 113
|
||
#endif
|
||
|
||
typedef struct thash {
|
||
struct thash *next; /* next hash value */
|
||
AUXU type; /* type we are hashing */
|
||
symint_t indx; /* index within string table */
|
||
} thash_t;
|
||
|
||
|
||
/* Extended file descriptor that contains all of the support necessary
|
||
to add things to each file separately. */
|
||
typedef struct efdr {
|
||
FDR fdr; /* File header to be written out */
|
||
FDR *orig_fdr; /* original file header */
|
||
char *name; /* filename */
|
||
int name_len; /* length of the filename */
|
||
symint_t void_type; /* aux. pointer to 'void' type */
|
||
symint_t int_type; /* aux. pointer to 'int' type */
|
||
scope_t *cur_scope; /* current nested scopes */
|
||
symint_t file_index; /* current file number */
|
||
int nested_scopes; /* # nested scopes */
|
||
varray_t strings; /* local strings */
|
||
varray_t symbols; /* local symbols */
|
||
varray_t procs; /* procedures */
|
||
varray_t aux_syms; /* auxiliary symbols */
|
||
struct efdr *next_file; /* next file descriptor */
|
||
/* string/type hash tables */
|
||
shash_t **shash_head; /* string hash table */
|
||
thash_t *thash_head[THASH_SIZE];
|
||
} efdr_t;
|
||
|
||
/* Pre-initialized extended file structure. */
|
||
static efdr_t init_file =
|
||
{
|
||
{ /* FDR structure */
|
||
#ifdef __alpha
|
||
0, /* adr: memory address of beginning of file */
|
||
0, /* cbLineOffset: byte offset from header for this file ln's */
|
||
0, /* cbLine: size of lines for this file */
|
||
0, /* cbSs: number of bytes in the ss */
|
||
0, /* rss: file name (of source, if known) */
|
||
0, /* issBase: file's string space */
|
||
0, /* isymBase: beginning of symbols */
|
||
0, /* csym: count file's of symbols */
|
||
0, /* ilineBase: file's line symbols */
|
||
0, /* cline: count of file's line symbols */
|
||
0, /* ioptBase: file's optimization entries */
|
||
0, /* copt: count of file's optimization entries */
|
||
0, /* ipdFirst: start of procedures for this file */
|
||
0, /* cpd: count of procedures for this file */
|
||
0, /* iauxBase: file's auxiliary entries */
|
||
0, /* caux: count of file's auxiliary entries */
|
||
0, /* rfdBase: index into the file indirect table */
|
||
0, /* crfd: count file indirect entries */
|
||
langC, /* lang: language for this file */
|
||
1, /* fMerge: whether this file can be merged */
|
||
0, /* fReadin: true if read in (not just created) */
|
||
#ifdef HOST_WORDS_BIG_ENDIAN
|
||
1, /* fBigendian: if 1, compiled on big endian machine */
|
||
#else
|
||
0, /* fBigendian: if 1, compiled on big endian machine */
|
||
#endif
|
||
0, /* fTrim: whether the symbol table was trimmed */
|
||
GLEVEL_2, /* glevel: level this file was compiled with */
|
||
0, /* reserved: reserved for future use */
|
||
#else
|
||
0, /* adr: memory address of beginning of file */
|
||
0, /* rss: file name (of source, if known) */
|
||
0, /* issBase: file's string space */
|
||
0, /* cbSs: number of bytes in the ss */
|
||
0, /* isymBase: beginning of symbols */
|
||
0, /* csym: count file's of symbols */
|
||
0, /* ilineBase: file's line symbols */
|
||
0, /* cline: count of file's line symbols */
|
||
0, /* ioptBase: file's optimization entries */
|
||
0, /* copt: count of file's optimization entries */
|
||
0, /* ipdFirst: start of procedures for this file */
|
||
0, /* cpd: count of procedures for this file */
|
||
0, /* iauxBase: file's auxiliary entries */
|
||
0, /* caux: count of file's auxiliary entries */
|
||
0, /* rfdBase: index into the file indirect table */
|
||
0, /* crfd: count file indirect entries */
|
||
langC, /* lang: language for this file */
|
||
1, /* fMerge: whether this file can be merged */
|
||
0, /* fReadin: true if read in (not just created) */
|
||
#ifdef HOST_WORDS_BIG_ENDIAN
|
||
1, /* fBigendian: if 1, compiled on big endian machine */
|
||
#else
|
||
0, /* fBigendian: if 1, compiled on big endian machine */
|
||
#endif
|
||
GLEVEL_2, /* glevel: level this file was compiled with */
|
||
0, /* reserved: reserved for future use */
|
||
0, /* cbLineOffset: byte offset from header for this file ln's */
|
||
0, /* cbLine: size of lines for this file */
|
||
#endif
|
||
},
|
||
|
||
(FDR *) 0, /* orig_fdr: original file header pointer */
|
||
(char *) 0, /* name: pointer to filename */
|
||
0, /* name_len: length of filename */
|
||
0, /* void_type: ptr to aux node for void type */
|
||
0, /* int_type: ptr to aux node for int type */
|
||
(scope_t *) 0, /* cur_scope: current scope being processed */
|
||
0, /* file_index: current file # */
|
||
0, /* nested_scopes: # nested scopes */
|
||
INIT_VARRAY (char), /* strings: local string varray */
|
||
INIT_VARRAY (SYMR), /* symbols: local symbols varray */
|
||
INIT_VARRAY (PDR), /* procs: procedure varray */
|
||
INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
|
||
|
||
(struct efdr *) 0, /* next_file: next file structure */
|
||
|
||
(shash_t **) 0, /* shash_head: string hash table */
|
||
{ 0 }, /* thash_head: type hash table */
|
||
};
|
||
|
||
|
||
static efdr_t *first_file; /* first file descriptor */
|
||
static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
|
||
|
||
|
||
/* Union of various things that are held in pages. */
|
||
typedef union page {
|
||
char byte [ PAGE_SIZE ];
|
||
unsigned char ubyte [ PAGE_SIZE ];
|
||
efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
|
||
FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
|
||
PDR proc [ PAGE_SIZE / sizeof (PDR) ];
|
||
SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
|
||
EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
|
||
AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
|
||
DNR dense [ PAGE_SIZE / sizeof (DNR) ];
|
||
scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
|
||
vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
|
||
shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
|
||
thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
|
||
tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
|
||
forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
|
||
thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
|
||
} page_t;
|
||
|
||
|
||
/* Structure holding allocation information for small sized structures. */
|
||
typedef struct alloc_info {
|
||
const char *alloc_name; /* name of this allocation type (must be first) */
|
||
page_t *cur_page; /* current page being allocated from */
|
||
small_free_t free_list; /* current free list if any */
|
||
int unallocated; /* number of elements unallocated on page */
|
||
int total_alloc; /* total number of allocations */
|
||
int total_free; /* total number of frees */
|
||
int total_pages; /* total number of pages allocated */
|
||
} alloc_info_t;
|
||
|
||
/* Type information collected together. */
|
||
typedef struct type_info {
|
||
bt_t basic_type; /* basic type */
|
||
coff_type_t orig_type; /* original COFF-based type */
|
||
int num_tq; /* # type qualifiers */
|
||
int num_dims; /* # dimensions */
|
||
int num_sizes; /* # sizes */
|
||
int extra_sizes; /* # extra sizes not tied with dims */
|
||
tag_t * tag_ptr; /* tag pointer */
|
||
int bitfield; /* symbol is a bitfield */
|
||
int unknown_tag; /* this is an unknown tag */
|
||
tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
|
||
symint_t dimensions [N_TQ]; /* dimensions for each array */
|
||
symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
|
||
struct/union/enum + bitfield size */
|
||
} type_info_t;
|
||
|
||
/* Pre-initialized type_info struct. */
|
||
static type_info_t type_info_init = {
|
||
bt_Nil, /* basic type */
|
||
T_NULL, /* original COFF-based type */
|
||
0, /* # type qualifiers */
|
||
0, /* # dimensions */
|
||
0, /* # sizes */
|
||
0, /* sizes not tied with dims */
|
||
NULL, /* ptr to tag */
|
||
0, /* bitfield */
|
||
0, /* unknown tag */
|
||
{ /* type qualifiers */
|
||
tq_Nil,
|
||
tq_Nil,
|
||
tq_Nil,
|
||
tq_Nil,
|
||
tq_Nil,
|
||
tq_Nil,
|
||
},
|
||
{ /* dimensions */
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0
|
||
},
|
||
{ /* sizes */
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
0,
|
||
},
|
||
};
|
||
|
||
|
||
/* Global virtual arrays & hash table for external strings as well as
|
||
for the tags table and global tables for file descriptors, and
|
||
dense numbers. */
|
||
|
||
static varray_t file_desc = INIT_VARRAY (efdr_t);
|
||
static varray_t dense_num = INIT_VARRAY (DNR);
|
||
static varray_t tag_strings = INIT_VARRAY (char);
|
||
static varray_t ext_strings = INIT_VARRAY (char);
|
||
static varray_t ext_symbols = INIT_VARRAY (EXTR);
|
||
|
||
static shash_t *orig_str_hash[SHASH_SIZE];
|
||
static shash_t *ext_str_hash [SHASH_SIZE];
|
||
static shash_t *tag_hash [SHASH_SIZE];
|
||
|
||
/* Static types for int and void. Also, remember the last function's
|
||
type (which is set up when we encounter the declaration for the
|
||
function, and used when the end block for the function is emitted. */
|
||
|
||
static type_info_t int_type_info;
|
||
static type_info_t void_type_info;
|
||
static type_info_t last_func_type_info;
|
||
static EXTR *last_func_eptr;
|
||
|
||
|
||
/* Convert COFF basic type to ECOFF basic type. The T_NULL type
|
||
really should use bt_Void, but this causes the current ecoff GDB to
|
||
issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
|
||
2.0) doesn't understand it, even though the compiler generates it.
|
||
Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
|
||
suite, but for now go with what works. */
|
||
|
||
static const bt_t map_coff_types[ (int) T_MAX ] = {
|
||
bt_Nil, /* T_NULL */
|
||
bt_Nil, /* T_ARG */
|
||
bt_Char, /* T_CHAR */
|
||
bt_Short, /* T_SHORT */
|
||
bt_Int, /* T_INT */
|
||
bt_Long, /* T_LONG */
|
||
bt_Float, /* T_FLOAT */
|
||
bt_Double, /* T_DOUBLE */
|
||
bt_Struct, /* T_STRUCT */
|
||
bt_Union, /* T_UNION */
|
||
bt_Enum, /* T_ENUM */
|
||
bt_Enum, /* T_MOE */
|
||
bt_UChar, /* T_UCHAR */
|
||
bt_UShort, /* T_USHORT */
|
||
bt_UInt, /* T_UINT */
|
||
bt_ULong /* T_ULONG */
|
||
};
|
||
|
||
/* Convert COFF storage class to ECOFF storage class. */
|
||
static const sc_t map_coff_storage[ (int) C_MAX ] = {
|
||
sc_Nil, /* 0: C_NULL */
|
||
sc_Abs, /* 1: C_AUTO auto var */
|
||
sc_Undefined, /* 2: C_EXT external */
|
||
sc_Data, /* 3: C_STAT static */
|
||
sc_Register, /* 4: C_REG register */
|
||
sc_Undefined, /* 5: C_EXTDEF ??? */
|
||
sc_Text, /* 6: C_LABEL label */
|
||
sc_Text, /* 7: C_ULABEL user label */
|
||
sc_Info, /* 8: C_MOS member of struct */
|
||
sc_Abs, /* 9: C_ARG argument */
|
||
sc_Info, /* 10: C_STRTAG struct tag */
|
||
sc_Info, /* 11: C_MOU member of union */
|
||
sc_Info, /* 12: C_UNTAG union tag */
|
||
sc_Info, /* 13: C_TPDEF typedef */
|
||
sc_Data, /* 14: C_USTATIC ??? */
|
||
sc_Info, /* 15: C_ENTAG enum tag */
|
||
sc_Info, /* 16: C_MOE member of enum */
|
||
sc_Register, /* 17: C_REGPARM register parameter */
|
||
sc_Bits, /* 18; C_FIELD bitfield */
|
||
sc_Nil, /* 19 */
|
||
sc_Nil, /* 20 */
|
||
sc_Nil, /* 21 */
|
||
sc_Nil, /* 22 */
|
||
sc_Nil, /* 23 */
|
||
sc_Nil, /* 24 */
|
||
sc_Nil, /* 25 */
|
||
sc_Nil, /* 26 */
|
||
sc_Nil, /* 27 */
|
||
sc_Nil, /* 28 */
|
||
sc_Nil, /* 29 */
|
||
sc_Nil, /* 30 */
|
||
sc_Nil, /* 31 */
|
||
sc_Nil, /* 32 */
|
||
sc_Nil, /* 33 */
|
||
sc_Nil, /* 34 */
|
||
sc_Nil, /* 35 */
|
||
sc_Nil, /* 36 */
|
||
sc_Nil, /* 37 */
|
||
sc_Nil, /* 38 */
|
||
sc_Nil, /* 39 */
|
||
sc_Nil, /* 40 */
|
||
sc_Nil, /* 41 */
|
||
sc_Nil, /* 42 */
|
||
sc_Nil, /* 43 */
|
||
sc_Nil, /* 44 */
|
||
sc_Nil, /* 45 */
|
||
sc_Nil, /* 46 */
|
||
sc_Nil, /* 47 */
|
||
sc_Nil, /* 48 */
|
||
sc_Nil, /* 49 */
|
||
sc_Nil, /* 50 */
|
||
sc_Nil, /* 51 */
|
||
sc_Nil, /* 52 */
|
||
sc_Nil, /* 53 */
|
||
sc_Nil, /* 54 */
|
||
sc_Nil, /* 55 */
|
||
sc_Nil, /* 56 */
|
||
sc_Nil, /* 57 */
|
||
sc_Nil, /* 58 */
|
||
sc_Nil, /* 59 */
|
||
sc_Nil, /* 60 */
|
||
sc_Nil, /* 61 */
|
||
sc_Nil, /* 62 */
|
||
sc_Nil, /* 63 */
|
||
sc_Nil, /* 64 */
|
||
sc_Nil, /* 65 */
|
||
sc_Nil, /* 66 */
|
||
sc_Nil, /* 67 */
|
||
sc_Nil, /* 68 */
|
||
sc_Nil, /* 69 */
|
||
sc_Nil, /* 70 */
|
||
sc_Nil, /* 71 */
|
||
sc_Nil, /* 72 */
|
||
sc_Nil, /* 73 */
|
||
sc_Nil, /* 74 */
|
||
sc_Nil, /* 75 */
|
||
sc_Nil, /* 76 */
|
||
sc_Nil, /* 77 */
|
||
sc_Nil, /* 78 */
|
||
sc_Nil, /* 79 */
|
||
sc_Nil, /* 80 */
|
||
sc_Nil, /* 81 */
|
||
sc_Nil, /* 82 */
|
||
sc_Nil, /* 83 */
|
||
sc_Nil, /* 84 */
|
||
sc_Nil, /* 85 */
|
||
sc_Nil, /* 86 */
|
||
sc_Nil, /* 87 */
|
||
sc_Nil, /* 88 */
|
||
sc_Nil, /* 89 */
|
||
sc_Nil, /* 90 */
|
||
sc_Nil, /* 91 */
|
||
sc_Nil, /* 92 */
|
||
sc_Nil, /* 93 */
|
||
sc_Nil, /* 94 */
|
||
sc_Nil, /* 95 */
|
||
sc_Nil, /* 96 */
|
||
sc_Nil, /* 97 */
|
||
sc_Nil, /* 98 */
|
||
sc_Nil, /* 99 */
|
||
sc_Text, /* 100: C_BLOCK block start/end */
|
||
sc_Text, /* 101: C_FCN function start/end */
|
||
sc_Info, /* 102: C_EOS end of struct/union/enum */
|
||
sc_Nil, /* 103: C_FILE file start */
|
||
sc_Nil, /* 104: C_LINE line number */
|
||
sc_Nil, /* 105: C_ALIAS combined type info */
|
||
sc_Nil, /* 106: C_HIDDEN ??? */
|
||
};
|
||
|
||
/* Convert COFF storage class to ECOFF symbol type. */
|
||
static const st_t map_coff_sym_type[ (int) C_MAX ] = {
|
||
st_Nil, /* 0: C_NULL */
|
||
st_Local, /* 1: C_AUTO auto var */
|
||
st_Global, /* 2: C_EXT external */
|
||
st_Static, /* 3: C_STAT static */
|
||
st_Local, /* 4: C_REG register */
|
||
st_Global, /* 5: C_EXTDEF ??? */
|
||
st_Label, /* 6: C_LABEL label */
|
||
st_Label, /* 7: C_ULABEL user label */
|
||
st_Member, /* 8: C_MOS member of struct */
|
||
st_Param, /* 9: C_ARG argument */
|
||
st_Block, /* 10: C_STRTAG struct tag */
|
||
st_Member, /* 11: C_MOU member of union */
|
||
st_Block, /* 12: C_UNTAG union tag */
|
||
st_Typedef, /* 13: C_TPDEF typedef */
|
||
st_Static, /* 14: C_USTATIC ??? */
|
||
st_Block, /* 15: C_ENTAG enum tag */
|
||
st_Member, /* 16: C_MOE member of enum */
|
||
st_Param, /* 17: C_REGPARM register parameter */
|
||
st_Member, /* 18; C_FIELD bitfield */
|
||
st_Nil, /* 19 */
|
||
st_Nil, /* 20 */
|
||
st_Nil, /* 21 */
|
||
st_Nil, /* 22 */
|
||
st_Nil, /* 23 */
|
||
st_Nil, /* 24 */
|
||
st_Nil, /* 25 */
|
||
st_Nil, /* 26 */
|
||
st_Nil, /* 27 */
|
||
st_Nil, /* 28 */
|
||
st_Nil, /* 29 */
|
||
st_Nil, /* 30 */
|
||
st_Nil, /* 31 */
|
||
st_Nil, /* 32 */
|
||
st_Nil, /* 33 */
|
||
st_Nil, /* 34 */
|
||
st_Nil, /* 35 */
|
||
st_Nil, /* 36 */
|
||
st_Nil, /* 37 */
|
||
st_Nil, /* 38 */
|
||
st_Nil, /* 39 */
|
||
st_Nil, /* 40 */
|
||
st_Nil, /* 41 */
|
||
st_Nil, /* 42 */
|
||
st_Nil, /* 43 */
|
||
st_Nil, /* 44 */
|
||
st_Nil, /* 45 */
|
||
st_Nil, /* 46 */
|
||
st_Nil, /* 47 */
|
||
st_Nil, /* 48 */
|
||
st_Nil, /* 49 */
|
||
st_Nil, /* 50 */
|
||
st_Nil, /* 51 */
|
||
st_Nil, /* 52 */
|
||
st_Nil, /* 53 */
|
||
st_Nil, /* 54 */
|
||
st_Nil, /* 55 */
|
||
st_Nil, /* 56 */
|
||
st_Nil, /* 57 */
|
||
st_Nil, /* 58 */
|
||
st_Nil, /* 59 */
|
||
st_Nil, /* 60 */
|
||
st_Nil, /* 61 */
|
||
st_Nil, /* 62 */
|
||
st_Nil, /* 63 */
|
||
st_Nil, /* 64 */
|
||
st_Nil, /* 65 */
|
||
st_Nil, /* 66 */
|
||
st_Nil, /* 67 */
|
||
st_Nil, /* 68 */
|
||
st_Nil, /* 69 */
|
||
st_Nil, /* 70 */
|
||
st_Nil, /* 71 */
|
||
st_Nil, /* 72 */
|
||
st_Nil, /* 73 */
|
||
st_Nil, /* 74 */
|
||
st_Nil, /* 75 */
|
||
st_Nil, /* 76 */
|
||
st_Nil, /* 77 */
|
||
st_Nil, /* 78 */
|
||
st_Nil, /* 79 */
|
||
st_Nil, /* 80 */
|
||
st_Nil, /* 81 */
|
||
st_Nil, /* 82 */
|
||
st_Nil, /* 83 */
|
||
st_Nil, /* 84 */
|
||
st_Nil, /* 85 */
|
||
st_Nil, /* 86 */
|
||
st_Nil, /* 87 */
|
||
st_Nil, /* 88 */
|
||
st_Nil, /* 89 */
|
||
st_Nil, /* 90 */
|
||
st_Nil, /* 91 */
|
||
st_Nil, /* 92 */
|
||
st_Nil, /* 93 */
|
||
st_Nil, /* 94 */
|
||
st_Nil, /* 95 */
|
||
st_Nil, /* 96 */
|
||
st_Nil, /* 97 */
|
||
st_Nil, /* 98 */
|
||
st_Nil, /* 99 */
|
||
st_Block, /* 100: C_BLOCK block start/end */
|
||
st_Proc, /* 101: C_FCN function start/end */
|
||
st_End, /* 102: C_EOS end of struct/union/enum */
|
||
st_File, /* 103: C_FILE file start */
|
||
st_Nil, /* 104: C_LINE line number */
|
||
st_Nil, /* 105: C_ALIAS combined type info */
|
||
st_Nil, /* 106: C_HIDDEN ??? */
|
||
};
|
||
|
||
/* Map COFF derived types to ECOFF type qualifiers. */
|
||
static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
|
||
tq_Nil, /* 0: DT_NON no more qualifiers */
|
||
tq_Ptr, /* 1: DT_PTR pointer */
|
||
tq_Proc, /* 2: DT_FCN function */
|
||
tq_Array, /* 3: DT_ARY array */
|
||
};
|
||
|
||
|
||
/* Keep track of different sized allocation requests. */
|
||
static alloc_info_t alloc_counts[ (int) alloc_type_last ];
|
||
|
||
|
||
/* Pointers and such to the original symbol table that is read in. */
|
||
static struct filehdr orig_file_header; /* global object file header */
|
||
|
||
static HDRR orig_sym_hdr; /* symbolic header on input */
|
||
static char *orig_linenum; /* line numbers */
|
||
static DNR *orig_dense; /* dense numbers */
|
||
static PDR *orig_procs; /* procedures */
|
||
static SYMR *orig_local_syms; /* local symbols */
|
||
static OPTR *orig_opt_syms; /* optimization symbols */
|
||
static AUXU *orig_aux_syms; /* auxiliary symbols */
|
||
static char *orig_local_strs; /* local strings */
|
||
static char *orig_ext_strs; /* external strings */
|
||
static FDR *orig_files; /* file descriptors */
|
||
static symint_t *orig_rfds; /* relative file desc's */
|
||
static EXTR *orig_ext_syms; /* external symbols */
|
||
|
||
/* Macros to convert an index into a given object within the original
|
||
symbol table. */
|
||
#define CHECK(num,max,str) \
|
||
(((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
|
||
|
||
#define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
|
||
#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
|
||
#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
|
||
#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
|
||
#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
|
||
#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
|
||
#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
|
||
#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
|
||
#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
|
||
#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
|
||
#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
|
||
|
||
/* Various other statics. */
|
||
static HDRR symbolic_header; /* symbolic header */
|
||
static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
|
||
static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
|
||
static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
|
||
static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
|
||
static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
|
||
static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
|
||
static long file_offset = 0; /* current file offset */
|
||
static long max_file_offset = 0; /* maximum file offset */
|
||
static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
|
||
static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
|
||
static char *progname = (char *) 0; /* program name for errors */
|
||
static const char *input_name = "stdin"; /* name of input file */
|
||
static char *object_name = (char *) 0; /* tmp. name of object file */
|
||
static char *obj_in_name = (char *) 0; /* name of input object file */
|
||
static char *cur_line_start = (char *) 0; /* current line read in */
|
||
static char *cur_line_ptr = (char *) 0; /* ptr within current line */
|
||
static unsigned cur_line_nbytes = 0; /* # bytes for current line */
|
||
static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
|
||
static long line_number = 0; /* current input line number */
|
||
static int debug = 0; /* trace functions */
|
||
static int version = 0; /* print version # */
|
||
static int had_errors = 0; /* != 0 if errors were found */
|
||
static int rename_output = 0; /* != 0 if rename output file*/
|
||
static int delete_input = 0; /* != 0 if delete input after done */
|
||
static int stabs_seen = 0; /* != 0 if stabs have been seen */
|
||
|
||
|
||
/* Pseudo symbol to use when putting stabs into the symbol table. */
|
||
#ifndef STABS_SYMBOL
|
||
#define STABS_SYMBOL "@stabs"
|
||
#endif
|
||
|
||
static const char stabs_symbol[] = STABS_SYMBOL;
|
||
|
||
|
||
/* Forward reference for functions. See the definition for more details. */
|
||
|
||
#ifndef STATIC
|
||
#define STATIC static
|
||
#endif
|
||
|
||
STATIC int out_of_bounds PARAMS ((symint_t, symint_t, const char *, int));
|
||
|
||
STATIC shash_t *hash_string PARAMS ((const char *,
|
||
Ptrdiff_t,
|
||
shash_t **,
|
||
symint_t *));
|
||
|
||
STATIC symint_t add_string PARAMS ((varray_t *,
|
||
shash_t **,
|
||
const char *,
|
||
const char *,
|
||
shash_t **));
|
||
|
||
STATIC symint_t add_local_symbol
|
||
PARAMS ((const char *,
|
||
const char *,
|
||
st_t,
|
||
sc_t,
|
||
symint_t,
|
||
symint_t));
|
||
|
||
STATIC symint_t add_ext_symbol PARAMS ((EXTR *,
|
||
int));
|
||
|
||
STATIC symint_t add_aux_sym_symint
|
||
PARAMS ((symint_t));
|
||
|
||
STATIC symint_t add_aux_sym_rndx
|
||
PARAMS ((int, symint_t));
|
||
|
||
STATIC symint_t add_aux_sym_tir PARAMS ((type_info_t *,
|
||
hash_state_t,
|
||
thash_t **));
|
||
|
||
STATIC tag_t * get_tag PARAMS ((const char *,
|
||
const char *,
|
||
symint_t,
|
||
bt_t));
|
||
|
||
STATIC void add_unknown_tag PARAMS ((tag_t *));
|
||
|
||
STATIC void add_procedure PARAMS ((const char *,
|
||
const char *));
|
||
|
||
STATIC void add_file PARAMS ((const char *,
|
||
const char *));
|
||
|
||
STATIC void add_bytes PARAMS ((varray_t *,
|
||
char *,
|
||
Size_t));
|
||
|
||
STATIC void add_varray_page PARAMS ((varray_t *));
|
||
|
||
STATIC void update_headers PARAMS ((void));
|
||
|
||
STATIC void write_varray PARAMS ((varray_t *, off_t, const char *));
|
||
STATIC void write_object PARAMS ((void));
|
||
STATIC const char *st_to_string PARAMS ((st_t));
|
||
STATIC const char *sc_to_string PARAMS ((sc_t));
|
||
STATIC char *read_line PARAMS ((void));
|
||
STATIC void parse_input PARAMS ((void));
|
||
STATIC void mark_stabs PARAMS ((const char *));
|
||
STATIC void parse_begin PARAMS ((const char *));
|
||
STATIC void parse_bend PARAMS ((const char *));
|
||
STATIC void parse_def PARAMS ((const char *));
|
||
STATIC void parse_end PARAMS ((const char *));
|
||
STATIC void parse_ent PARAMS ((const char *));
|
||
STATIC void parse_file PARAMS ((const char *));
|
||
STATIC void parse_stabs_common
|
||
PARAMS ((const char *, const char *, const char *));
|
||
STATIC void parse_stabs PARAMS ((const char *));
|
||
STATIC void parse_stabn PARAMS ((const char *));
|
||
STATIC page_t *read_seek PARAMS ((Size_t, off_t, const char *));
|
||
STATIC void copy_object PARAMS ((void));
|
||
|
||
STATIC void catch_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
|
||
STATIC page_t *allocate_page PARAMS ((void));
|
||
|
||
STATIC page_t *allocate_multiple_pages
|
||
PARAMS ((Size_t));
|
||
|
||
STATIC void free_multiple_pages
|
||
PARAMS ((page_t *, Size_t));
|
||
|
||
#ifndef MALLOC_CHECK
|
||
STATIC page_t *allocate_cluster
|
||
PARAMS ((Size_t));
|
||
#endif
|
||
|
||
STATIC forward_t *allocate_forward PARAMS ((void));
|
||
STATIC scope_t *allocate_scope PARAMS ((void));
|
||
STATIC shash_t *allocate_shash PARAMS ((void));
|
||
STATIC tag_t *allocate_tag PARAMS ((void));
|
||
STATIC thash_t *allocate_thash PARAMS ((void));
|
||
STATIC thead_t *allocate_thead PARAMS ((void));
|
||
STATIC vlinks_t *allocate_vlinks PARAMS ((void));
|
||
|
||
STATIC void free_forward PARAMS ((forward_t *));
|
||
STATIC void free_scope PARAMS ((scope_t *));
|
||
STATIC void free_tag PARAMS ((tag_t *));
|
||
STATIC void free_thead PARAMS ((thead_t *));
|
||
|
||
extern char *optarg;
|
||
extern int optind;
|
||
extern int opterr;
|
||
|
||
/* List of assembler pseudo ops and beginning sequences that need
|
||
special actions. Someday, this should be a hash table, and such,
|
||
but for now a linear list of names and calls to memcmp will
|
||
do...... */
|
||
|
||
typedef struct _pseudo_ops {
|
||
const char *const name; /* pseudo-op in ascii */
|
||
const int len; /* length of name to compare */
|
||
void (*const func) PARAMS ((const char *)); /* function to handle line */
|
||
} pseudo_ops_t;
|
||
|
||
static const pseudo_ops_t pseudo_ops[] = {
|
||
{ "#.def", sizeof("#.def")-1, parse_def },
|
||
{ "#.begin", sizeof("#.begin")-1, parse_begin },
|
||
{ "#.bend", sizeof("#.bend")-1, parse_bend },
|
||
{ ".end", sizeof(".end")-1, parse_end },
|
||
{ ".ent", sizeof(".ent")-1, parse_ent },
|
||
{ ".file", sizeof(".file")-1, parse_file },
|
||
{ "#.stabs", sizeof("#.stabs")-1, parse_stabs },
|
||
{ "#.stabn", sizeof("#.stabn")-1, parse_stabn },
|
||
{ ".stabs", sizeof(".stabs")-1, parse_stabs },
|
||
{ ".stabn", sizeof(".stabn")-1, parse_stabn },
|
||
{ "#@stabs", sizeof("#@stabs")-1, mark_stabs },
|
||
};
|
||
|
||
|
||
/* Add a page to a varray object. */
|
||
|
||
STATIC void
|
||
add_varray_page (vp)
|
||
varray_t *vp; /* varray to add page to */
|
||
{
|
||
vlinks_t *new_links = allocate_vlinks ();
|
||
|
||
#ifdef MALLOC_CHECK
|
||
if (vp->object_size > 1)
|
||
new_links->datum = (page_t *) xcalloc (1, vp->object_size);
|
||
else
|
||
#endif
|
||
new_links->datum = allocate_page ();
|
||
|
||
alloc_counts[ (int) alloc_type_varray ].total_alloc++;
|
||
alloc_counts[ (int) alloc_type_varray ].total_pages++;
|
||
|
||
new_links->start_index = vp->num_allocated;
|
||
vp->objects_last_page = 0;
|
||
|
||
if (vp->first == (vlinks_t *) 0) /* first allocation? */
|
||
vp->first = vp->last = new_links;
|
||
else
|
||
{ /* 2nd or greater allocation */
|
||
new_links->prev = vp->last;
|
||
vp->last->next = new_links;
|
||
vp->last = new_links;
|
||
}
|
||
}
|
||
|
||
|
||
/* Compute hash code (from tree.c) */
|
||
|
||
#define HASHBITS 30
|
||
|
||
STATIC shash_t *
|
||
hash_string (text, hash_len, hash_tbl, ret_hash_index)
|
||
const char *text; /* ptr to text to hash */
|
||
Ptrdiff_t hash_len; /* length of the text */
|
||
shash_t **hash_tbl; /* hash table */
|
||
symint_t *ret_hash_index; /* ptr to store hash index */
|
||
{
|
||
unsigned long hi;
|
||
Ptrdiff_t i;
|
||
shash_t *ptr;
|
||
int first_ch = *text;
|
||
|
||
hi = hash_len;
|
||
for (i = 0; i < hash_len; i++)
|
||
hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
|
||
|
||
hi &= (1 << HASHBITS) - 1;
|
||
hi %= SHASH_SIZE;
|
||
|
||
if (ret_hash_index != (symint_t *) 0)
|
||
*ret_hash_index = hi;
|
||
|
||
for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
|
||
if ((symint_t) hash_len == ptr->len
|
||
&& first_ch == ptr->string[0]
|
||
&& memcmp (text, ptr->string, hash_len) == 0)
|
||
break;
|
||
|
||
return ptr;
|
||
}
|
||
|
||
|
||
/* Add a string (and null pad) to one of the string tables. A
|
||
consequence of hashing strings, is that we don't let strings
|
||
cross page boundaries. The extra nulls will be ignored. */
|
||
|
||
STATIC symint_t
|
||
add_string (vp, hash_tbl, start, end_p1, ret_hash)
|
||
varray_t *vp; /* string virtual array */
|
||
shash_t **hash_tbl; /* ptr to hash table */
|
||
const char *start; /* 1st byte in string */
|
||
const char *end_p1; /* 1st byte after string */
|
||
shash_t **ret_hash; /* return hash pointer */
|
||
{
|
||
Ptrdiff_t len = end_p1 - start;
|
||
shash_t *hash_ptr;
|
||
symint_t hi;
|
||
|
||
if (len >= (Ptrdiff_t) PAGE_USIZE)
|
||
fatal ("string too big (%ld bytes)", (long) len);
|
||
|
||
hash_ptr = hash_string (start, len, hash_tbl, &hi);
|
||
if (hash_ptr == (shash_t *) 0)
|
||
{
|
||
char *p;
|
||
|
||
if (vp->objects_last_page + len >= (long) PAGE_USIZE)
|
||
{
|
||
vp->num_allocated
|
||
= ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
|
||
add_varray_page (vp);
|
||
}
|
||
|
||
hash_ptr = allocate_shash ();
|
||
hash_ptr->next = hash_tbl[hi];
|
||
hash_tbl[hi] = hash_ptr;
|
||
|
||
hash_ptr->len = len;
|
||
hash_ptr->indx = vp->num_allocated;
|
||
hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
|
||
|
||
vp->objects_last_page += len+1;
|
||
vp->num_allocated += len+1;
|
||
|
||
while (len-- > 0)
|
||
*p++ = *start++;
|
||
|
||
*p = '\0';
|
||
}
|
||
|
||
if (ret_hash != (shash_t **) 0)
|
||
*ret_hash = hash_ptr;
|
||
|
||
return hash_ptr->indx;
|
||
}
|
||
|
||
|
||
/* Add a local symbol. */
|
||
|
||
STATIC symint_t
|
||
add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
|
||
const char *str_start; /* first byte in string */
|
||
const char *str_end_p1; /* first byte after string */
|
||
st_t type; /* symbol type */
|
||
sc_t storage; /* storage class */
|
||
symint_t value; /* value of symbol */
|
||
symint_t indx; /* index to local/aux. syms */
|
||
{
|
||
symint_t ret;
|
||
SYMR *psym;
|
||
scope_t *pscope;
|
||
thead_t *ptag_head;
|
||
tag_t *ptag;
|
||
tag_t *ptag_next;
|
||
varray_t *vp = &cur_file_ptr->symbols;
|
||
int scope_delta = 0;
|
||
shash_t *hash_ptr = (shash_t *) 0;
|
||
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
|
||
|
||
psym->value = value;
|
||
psym->st = (unsigned) type;
|
||
psym->sc = (unsigned) storage;
|
||
psym->index = indx;
|
||
psym->iss = (str_start == (const char *) 0)
|
||
? 0
|
||
: add_string (&cur_file_ptr->strings,
|
||
&cur_file_ptr->shash_head[0],
|
||
str_start,
|
||
str_end_p1,
|
||
&hash_ptr);
|
||
|
||
ret = vp->num_allocated++;
|
||
|
||
if (MIPS_IS_STAB (psym))
|
||
return ret;
|
||
|
||
/* Save the symbol within the hash table if this is a static
|
||
item, and it has a name. */
|
||
if (hash_ptr != (shash_t *) 0
|
||
&& (type == st_Global || type == st_Static || type == st_Label
|
||
|| type == st_Proc || type == st_StaticProc))
|
||
hash_ptr->sym_ptr = psym;
|
||
|
||
/* push or pop a scope if appropriate. */
|
||
switch (type)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case st_File: /* beginning of file */
|
||
case st_Proc: /* procedure */
|
||
case st_StaticProc: /* static procedure */
|
||
case st_Block: /* begin scope */
|
||
pscope = allocate_scope ();
|
||
pscope->prev = cur_file_ptr->cur_scope;
|
||
pscope->lsym = psym;
|
||
pscope->lnumber = ret;
|
||
pscope->type = type;
|
||
cur_file_ptr->cur_scope = pscope;
|
||
|
||
if (type != st_File)
|
||
scope_delta = 1;
|
||
|
||
/* For every block type except file, struct, union, or
|
||
enumeration blocks, push a level on the tag stack. We omit
|
||
file types, so that tags can span file boundaries. */
|
||
if (type != st_File && storage != sc_Info)
|
||
{
|
||
ptag_head = allocate_thead ();
|
||
ptag_head->first_tag = 0;
|
||
ptag_head->prev = cur_tag_head;
|
||
cur_tag_head = ptag_head;
|
||
}
|
||
break;
|
||
|
||
case st_End:
|
||
pscope = cur_file_ptr->cur_scope;
|
||
if (pscope == (scope_t *) 0)
|
||
error ("internal error, too many st_End's");
|
||
|
||
else
|
||
{
|
||
st_t begin_type = (st_t) pscope->lsym->st;
|
||
|
||
if (begin_type != st_File)
|
||
scope_delta = -1;
|
||
|
||
/* Except for file, structure, union, or enumeration end
|
||
blocks remove all tags created within this scope. */
|
||
if (begin_type != st_File && storage != sc_Info)
|
||
{
|
||
ptag_head = cur_tag_head;
|
||
cur_tag_head = ptag_head->prev;
|
||
|
||
for (ptag = ptag_head->first_tag;
|
||
ptag != (tag_t *) 0;
|
||
ptag = ptag_next)
|
||
{
|
||
if (ptag->forward_ref != (forward_t *) 0)
|
||
add_unknown_tag (ptag);
|
||
|
||
ptag_next = ptag->same_block;
|
||
ptag->hash_ptr->tag_ptr = ptag->same_name;
|
||
free_tag (ptag);
|
||
}
|
||
|
||
free_thead (ptag_head);
|
||
}
|
||
|
||
cur_file_ptr->cur_scope = pscope->prev;
|
||
psym->index = pscope->lnumber; /* blk end gets begin sym # */
|
||
|
||
if (storage != sc_Info)
|
||
psym->iss = pscope->lsym->iss; /* blk end gets same name */
|
||
|
||
if (begin_type == st_File || begin_type == st_Block)
|
||
pscope->lsym->index = ret+1; /* block begin gets next sym # */
|
||
|
||
/* Functions push two or more aux words as follows:
|
||
1st word: index+1 of the end symbol
|
||
2nd word: type of the function (plus any aux words needed).
|
||
Also, tie the external pointer back to the function begin symbol. */
|
||
else
|
||
{
|
||
symint_t type;
|
||
pscope->lsym->index = add_aux_sym_symint (ret+1);
|
||
type = add_aux_sym_tir (&last_func_type_info,
|
||
hash_no,
|
||
&cur_file_ptr->thash_head[0]);
|
||
if (last_func_eptr)
|
||
{
|
||
last_func_eptr->ifd = cur_file_ptr->file_index;
|
||
|
||
/* The index for an external st_Proc symbol is the index
|
||
of the st_Proc symbol in the local symbol table. */
|
||
last_func_eptr->asym.index = psym->index;
|
||
}
|
||
}
|
||
|
||
free_scope (pscope);
|
||
}
|
||
}
|
||
|
||
cur_file_ptr->nested_scopes += scope_delta;
|
||
|
||
if (debug && type != st_File
|
||
&& (debug > 2 || type == st_Block || type == st_End
|
||
|| type == st_Proc || type == st_StaticProc))
|
||
{
|
||
const char *sc_str = sc_to_string (storage);
|
||
const char *st_str = st_to_string (type);
|
||
int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
|
||
|
||
fprintf (stderr,
|
||
"\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
|
||
value, depth, sc_str);
|
||
|
||
if (str_start && str_end_p1 - str_start > 0)
|
||
fprintf (stderr, " st= %-11s name= %.*s\n",
|
||
st_str, (int) (str_end_p1 - str_start), str_start);
|
||
else
|
||
{
|
||
Size_t len = strlen (st_str);
|
||
fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
/* Add an external symbol. */
|
||
|
||
STATIC symint_t
|
||
add_ext_symbol (esym, ifd)
|
||
EXTR *esym; /* symbol pointer */
|
||
int ifd; /* file index */
|
||
{
|
||
const char *str_start; /* first byte in string */
|
||
const char *str_end_p1; /* first byte after string */
|
||
EXTR *psym;
|
||
varray_t *vp = &ext_symbols;
|
||
shash_t *hash_ptr = (shash_t *) 0;
|
||
|
||
str_start = ORIG_ESTRS (esym->asym.iss);
|
||
str_end_p1 = str_start + strlen (str_start);
|
||
|
||
if (debug > 1)
|
||
{
|
||
long value = esym->asym.value;
|
||
const char *sc_str = sc_to_string (esym->asym.sc);
|
||
const char *st_str = st_to_string (esym->asym.st);
|
||
|
||
fprintf (stderr,
|
||
"\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
|
||
value, ifd, sc_str);
|
||
|
||
if (str_start && str_end_p1 - str_start > 0)
|
||
fprintf (stderr, " st= %-11s name= %.*s\n",
|
||
st_str, (int) (str_end_p1 - str_start), str_start);
|
||
else
|
||
fprintf (stderr, " st= %s\n", st_str);
|
||
}
|
||
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
|
||
|
||
*psym = *esym;
|
||
psym->ifd = ifd;
|
||
psym->asym.index = indexNil;
|
||
psym->asym.iss = (str_start == (const char *) 0)
|
||
? 0
|
||
: add_string (&ext_strings,
|
||
&ext_str_hash[0],
|
||
str_start,
|
||
str_end_p1,
|
||
&hash_ptr);
|
||
|
||
hash_ptr->esym_ptr = psym;
|
||
return vp->num_allocated++;
|
||
}
|
||
|
||
|
||
/* Add an auxiliary symbol (passing a symint). */
|
||
|
||
STATIC symint_t
|
||
add_aux_sym_symint (aux_word)
|
||
symint_t aux_word; /* auxiliary information word */
|
||
{
|
||
AUXU *aux_ptr;
|
||
efdr_t *file_ptr = cur_file_ptr;
|
||
varray_t *vp = &file_ptr->aux_syms;
|
||
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
|
||
aux_ptr->isym = aux_word;
|
||
|
||
return vp->num_allocated++;
|
||
}
|
||
|
||
|
||
/* Add an auxiliary symbol (passing a file/symbol index combo). */
|
||
|
||
STATIC symint_t
|
||
add_aux_sym_rndx (file_index, sym_index)
|
||
int file_index;
|
||
symint_t sym_index;
|
||
{
|
||
AUXU *aux_ptr;
|
||
efdr_t *file_ptr = cur_file_ptr;
|
||
varray_t *vp = &file_ptr->aux_syms;
|
||
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
|
||
aux_ptr->rndx.rfd = file_index;
|
||
aux_ptr->rndx.index = sym_index;
|
||
|
||
return vp->num_allocated++;
|
||
}
|
||
|
||
|
||
/* Add an auxiliary symbol (passing the basic type and possibly
|
||
type qualifiers). */
|
||
|
||
STATIC symint_t
|
||
add_aux_sym_tir (t, state, hash_tbl)
|
||
type_info_t *t; /* current type information */
|
||
hash_state_t state; /* whether to hash type or not */
|
||
thash_t **hash_tbl; /* pointer to hash table to use */
|
||
{
|
||
AUXU *aux_ptr;
|
||
efdr_t *file_ptr = cur_file_ptr;
|
||
varray_t *vp = &file_ptr->aux_syms;
|
||
static AUXU init_aux;
|
||
symint_t ret;
|
||
int i;
|
||
AUXU aux;
|
||
|
||
aux = init_aux;
|
||
aux.ti.bt = (int) t->basic_type;
|
||
aux.ti.continued = 0;
|
||
aux.ti.fBitfield = t->bitfield;
|
||
|
||
aux.ti.tq0 = (int) t->type_qualifiers[0];
|
||
aux.ti.tq1 = (int) t->type_qualifiers[1];
|
||
aux.ti.tq2 = (int) t->type_qualifiers[2];
|
||
aux.ti.tq3 = (int) t->type_qualifiers[3];
|
||
aux.ti.tq4 = (int) t->type_qualifiers[4];
|
||
aux.ti.tq5 = (int) t->type_qualifiers[5];
|
||
|
||
|
||
/* For anything that adds additional information, we must not hash,
|
||
so check here, and reset our state. */
|
||
|
||
if (state != hash_no
|
||
&& (t->type_qualifiers[0] == tq_Array
|
||
|| t->type_qualifiers[1] == tq_Array
|
||
|| t->type_qualifiers[2] == tq_Array
|
||
|| t->type_qualifiers[3] == tq_Array
|
||
|| t->type_qualifiers[4] == tq_Array
|
||
|| t->type_qualifiers[5] == tq_Array
|
||
|| t->basic_type == bt_Struct
|
||
|| t->basic_type == bt_Union
|
||
|| t->basic_type == bt_Enum
|
||
|| t->bitfield
|
||
|| t->num_dims > 0))
|
||
state = hash_no;
|
||
|
||
/* See if we can hash this type, and save some space, but some types
|
||
can't be hashed (because they contain arrays or continuations),
|
||
and others can be put into the hash list, but cannot use existing
|
||
types because other aux entries precede this one. */
|
||
|
||
if (state != hash_no)
|
||
{
|
||
thash_t *hash_ptr;
|
||
symint_t hi;
|
||
|
||
hi = aux.isym & ((1 << HASHBITS) - 1);
|
||
hi %= THASH_SIZE;
|
||
|
||
for (hash_ptr = hash_tbl[hi];
|
||
hash_ptr != (thash_t *) 0;
|
||
hash_ptr = hash_ptr->next)
|
||
{
|
||
if (aux.isym == hash_ptr->type.isym)
|
||
break;
|
||
}
|
||
|
||
if (hash_ptr != (thash_t *) 0 && state == hash_yes)
|
||
return hash_ptr->indx;
|
||
|
||
if (hash_ptr == (thash_t *) 0)
|
||
{
|
||
hash_ptr = allocate_thash ();
|
||
hash_ptr->next = hash_tbl[hi];
|
||
hash_ptr->type = aux;
|
||
hash_ptr->indx = vp->num_allocated;
|
||
hash_tbl[hi] = hash_ptr;
|
||
}
|
||
}
|
||
|
||
/* Everything is set up, add the aux symbol. */
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
|
||
*aux_ptr = aux;
|
||
|
||
ret = vp->num_allocated++;
|
||
|
||
/* Add bitfield length if it exists.
|
||
|
||
NOTE: Mips documentation claims bitfield goes at the end of the
|
||
AUX record, but the DECstation compiler emits it here.
|
||
(This would only make a difference for enum bitfields.)
|
||
|
||
Also note: We use the last size given since gcc may emit 2
|
||
for an enum bitfield. */
|
||
|
||
if (t->bitfield)
|
||
(void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
|
||
|
||
|
||
/* Add tag information if needed. Structure, union, and enum
|
||
references add 2 aux symbols: a [file index, symbol index]
|
||
pointer to the structure type, and the current file index. */
|
||
|
||
if (t->basic_type == bt_Struct
|
||
|| t->basic_type == bt_Union
|
||
|| t->basic_type == bt_Enum)
|
||
{
|
||
symint_t file_index = t->tag_ptr->ifd;
|
||
symint_t sym_index = t->tag_ptr->indx;
|
||
|
||
if (t->unknown_tag)
|
||
{
|
||
(void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
|
||
(void) add_aux_sym_symint ((symint_t)-1);
|
||
}
|
||
else if (sym_index != indexNil)
|
||
{
|
||
(void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
|
||
(void) add_aux_sym_symint (file_index);
|
||
}
|
||
else
|
||
{
|
||
forward_t *forward_ref = allocate_forward ();
|
||
|
||
forward_ref->type_ptr = aux_ptr;
|
||
forward_ref->next = t->tag_ptr->forward_ref;
|
||
t->tag_ptr->forward_ref = forward_ref;
|
||
|
||
(void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
|
||
forward_ref->index_ptr
|
||
= &vp->last->datum->aux[ vp->objects_last_page - 1];
|
||
|
||
(void) add_aux_sym_symint (file_index);
|
||
forward_ref->ifd_ptr
|
||
= &vp->last->datum->aux[ vp->objects_last_page - 1];
|
||
}
|
||
}
|
||
|
||
/* Add information about array bounds if they exist. */
|
||
for (i = 0; i < t->num_dims; i++)
|
||
{
|
||
(void) add_aux_sym_rndx (ST_RFDESCAPE,
|
||
cur_file_ptr->int_type);
|
||
|
||
(void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
|
||
(void) add_aux_sym_symint ((symint_t) 0); /* low bound */
|
||
(void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
|
||
(void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
|
||
? 0
|
||
: (t->sizes[i] * 8) / t->dimensions[i]);
|
||
};
|
||
|
||
/* NOTE: Mips documentation claims that the bitfield width goes here.
|
||
But it needs to be emitted earlier. */
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
/* Add a tag to the tag table (unless it already exists). */
|
||
|
||
STATIC tag_t *
|
||
get_tag (tag_start, tag_end_p1, indx, basic_type)
|
||
const char *tag_start; /* 1st byte of tag name */
|
||
const char *tag_end_p1; /* 1st byte after tag name */
|
||
symint_t indx; /* index of tag start block */
|
||
bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
|
||
{
|
||
shash_t *hash_ptr;
|
||
tag_t *tag_ptr;
|
||
hash_ptr = hash_string (tag_start,
|
||
tag_end_p1 - tag_start,
|
||
&tag_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (hash_ptr != (shash_t *) 0
|
||
&& hash_ptr->tag_ptr != (tag_t *) 0)
|
||
{
|
||
tag_ptr = hash_ptr->tag_ptr;
|
||
if (indx != indexNil)
|
||
{
|
||
tag_ptr->basic_type = basic_type;
|
||
tag_ptr->ifd = cur_file_ptr->file_index;
|
||
tag_ptr->indx = indx;
|
||
}
|
||
return tag_ptr;
|
||
}
|
||
|
||
(void) add_string (&tag_strings,
|
||
&tag_hash[0],
|
||
tag_start,
|
||
tag_end_p1,
|
||
&hash_ptr);
|
||
|
||
tag_ptr = allocate_tag ();
|
||
tag_ptr->forward_ref = (forward_t *) 0;
|
||
tag_ptr->hash_ptr = hash_ptr;
|
||
tag_ptr->same_name = hash_ptr->tag_ptr;
|
||
tag_ptr->basic_type = basic_type;
|
||
tag_ptr->indx = indx;
|
||
tag_ptr->ifd = (indx == indexNil
|
||
? (symint_t) -1 : cur_file_ptr->file_index);
|
||
tag_ptr->same_block = cur_tag_head->first_tag;
|
||
|
||
cur_tag_head->first_tag = tag_ptr;
|
||
hash_ptr->tag_ptr = tag_ptr;
|
||
|
||
return tag_ptr;
|
||
}
|
||
|
||
|
||
/* Add an unknown {struct, union, enum} tag. */
|
||
|
||
STATIC void
|
||
add_unknown_tag (ptag)
|
||
tag_t *ptag; /* pointer to tag information */
|
||
{
|
||
shash_t *hash_ptr = ptag->hash_ptr;
|
||
char *name_start = hash_ptr->string;
|
||
char *name_end_p1 = name_start + hash_ptr->len;
|
||
forward_t *f_next = ptag->forward_ref;
|
||
forward_t *f_cur;
|
||
int sym_index;
|
||
int file_index = cur_file_ptr->file_index;
|
||
|
||
if (debug > 1)
|
||
{
|
||
const char *agg_type = "{unknown aggregate type}";
|
||
switch (ptag->basic_type)
|
||
{
|
||
case bt_Struct: agg_type = "struct"; break;
|
||
case bt_Union: agg_type = "union"; break;
|
||
case bt_Enum: agg_type = "enum"; break;
|
||
default: break;
|
||
}
|
||
|
||
fprintf (stderr, "unknown %s %.*s found\n",
|
||
agg_type, (int) hash_ptr->len, name_start);
|
||
}
|
||
|
||
sym_index = add_local_symbol (name_start,
|
||
name_end_p1,
|
||
st_Block,
|
||
sc_Info,
|
||
(symint_t) 0,
|
||
(symint_t) 0);
|
||
|
||
(void) add_local_symbol (name_start,
|
||
name_end_p1,
|
||
st_End,
|
||
sc_Info,
|
||
(symint_t) 0,
|
||
(symint_t) 0);
|
||
|
||
while (f_next != (forward_t *) 0)
|
||
{
|
||
f_cur = f_next;
|
||
f_next = f_next->next;
|
||
|
||
f_cur->ifd_ptr->isym = file_index;
|
||
f_cur->index_ptr->rndx.index = sym_index;
|
||
|
||
free_forward (f_cur);
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* Add a procedure to the current file's list of procedures, and record
|
||
this is the current procedure. If the assembler created a PDR for
|
||
this procedure, use that to initialize the current PDR. */
|
||
|
||
STATIC void
|
||
add_procedure (func_start, func_end_p1)
|
||
const char *func_start; /* 1st byte of func name */
|
||
const char *func_end_p1; /* 1st byte after func name */
|
||
{
|
||
PDR *new_proc_ptr;
|
||
efdr_t *file_ptr = cur_file_ptr;
|
||
varray_t *vp = &file_ptr->procs;
|
||
symint_t value = 0;
|
||
st_t proc_type = st_Proc;
|
||
shash_t *shash_ptr = hash_string (func_start,
|
||
func_end_p1 - func_start,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (debug)
|
||
fputc ('\n', stderr);
|
||
|
||
if (vp->objects_last_page == vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
|
||
|
||
vp->num_allocated++;
|
||
|
||
|
||
/* Did the assembler create this procedure? If so, get the PDR information. */
|
||
cur_oproc_ptr = (PDR *) 0;
|
||
if (shash_ptr != (shash_t *) 0)
|
||
{
|
||
PDR *old_proc_ptr = shash_ptr->proc_ptr;
|
||
SYMR *sym_ptr = shash_ptr->sym_ptr;
|
||
|
||
if (old_proc_ptr != (PDR *) 0
|
||
&& sym_ptr != (SYMR *) 0
|
||
&& ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
|
||
{
|
||
cur_oproc_begin = sym_ptr;
|
||
cur_oproc_end = shash_ptr->end_ptr;
|
||
value = sym_ptr->value;
|
||
|
||
cur_oproc_ptr = old_proc_ptr;
|
||
proc_type = (st_t) sym_ptr->st;
|
||
*new_proc_ptr = *old_proc_ptr; /* initialize */
|
||
}
|
||
}
|
||
|
||
if (cur_oproc_ptr == (PDR *) 0)
|
||
error ("did not find a PDR block for %.*s",
|
||
(int) (func_end_p1 - func_start), func_start);
|
||
|
||
/* Determine the start of symbols. */
|
||
new_proc_ptr->isym = file_ptr->symbols.num_allocated;
|
||
|
||
/* Push the start of the function. */
|
||
(void) add_local_symbol (func_start, func_end_p1,
|
||
proc_type, sc_Text,
|
||
value,
|
||
(symint_t) 0);
|
||
}
|
||
|
||
|
||
/* Add a new filename, and set up all of the file relative
|
||
virtual arrays (strings, symbols, aux syms, etc.). Record
|
||
where the current file structure lives. */
|
||
|
||
STATIC void
|
||
add_file (file_start, file_end_p1)
|
||
const char *file_start; /* first byte in string */
|
||
const char *file_end_p1; /* first byte after string */
|
||
{
|
||
static char zero_bytes[2] = { '\0', '\0' };
|
||
|
||
Ptrdiff_t len = file_end_p1 - file_start;
|
||
int first_ch = *file_start;
|
||
efdr_t *file_ptr;
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
|
||
|
||
/* See if the file has already been created. */
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
if (first_ch == file_ptr->name[0]
|
||
&& file_ptr->name[len] == '\0'
|
||
&& memcmp (file_start, file_ptr->name, len) == 0)
|
||
{
|
||
cur_file_ptr = file_ptr;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* If this is a new file, create it. */
|
||
if (file_ptr == (efdr_t *) 0)
|
||
{
|
||
if (file_desc.objects_last_page == file_desc.objects_per_page)
|
||
add_varray_page (&file_desc);
|
||
|
||
file_ptr = cur_file_ptr
|
||
= &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
|
||
*file_ptr = init_file;
|
||
|
||
file_ptr->file_index = file_desc.num_allocated++;
|
||
|
||
/* Allocate the string hash table. */
|
||
file_ptr->shash_head = (shash_t **) allocate_page ();
|
||
|
||
/* Make sure 0 byte in string table is null */
|
||
add_string (&file_ptr->strings,
|
||
&file_ptr->shash_head[0],
|
||
&zero_bytes[0],
|
||
&zero_bytes[0],
|
||
(shash_t **) 0);
|
||
|
||
if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
|
||
fatal ("filename goes over one page boundary");
|
||
|
||
/* Push the start of the filename. We assume that the filename
|
||
will be stored at string offset 1. */
|
||
(void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
|
||
(symint_t) 0, (symint_t) 0);
|
||
file_ptr->fdr.rss = 1;
|
||
file_ptr->name = &file_ptr->strings.last->datum->byte[1];
|
||
file_ptr->name_len = file_end_p1 - file_start;
|
||
|
||
/* Update the linked list of file descriptors. */
|
||
*last_file_ptr = file_ptr;
|
||
last_file_ptr = &file_ptr->next_file;
|
||
|
||
/* Add void & int types to the file (void should be first to catch
|
||
errant 0's within the index fields). */
|
||
file_ptr->void_type = add_aux_sym_tir (&void_type_info,
|
||
hash_yes,
|
||
&cur_file_ptr->thash_head[0]);
|
||
|
||
file_ptr->int_type = add_aux_sym_tir (&int_type_info,
|
||
hash_yes,
|
||
&cur_file_ptr->thash_head[0]);
|
||
}
|
||
}
|
||
|
||
|
||
/* Add a stream of random bytes to a varray. */
|
||
|
||
STATIC void
|
||
add_bytes (vp, input_ptr, nitems)
|
||
varray_t *vp; /* virtual array to add too */
|
||
char *input_ptr; /* start of the bytes */
|
||
Size_t nitems; /* # items to move */
|
||
{
|
||
Size_t move_items;
|
||
Size_t move_bytes;
|
||
char *ptr;
|
||
|
||
while (nitems > 0)
|
||
{
|
||
if (vp->objects_last_page >= vp->objects_per_page)
|
||
add_varray_page (vp);
|
||
|
||
ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
|
||
move_items = vp->objects_per_page - vp->objects_last_page;
|
||
if (move_items > nitems)
|
||
move_items = nitems;
|
||
|
||
move_bytes = move_items * vp->object_size;
|
||
nitems -= move_items;
|
||
|
||
if (move_bytes >= 32)
|
||
{
|
||
(void) memcpy (ptr, input_ptr, move_bytes);
|
||
input_ptr += move_bytes;
|
||
}
|
||
else
|
||
{
|
||
while (move_bytes-- > 0)
|
||
*ptr++ = *input_ptr++;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
/* Convert storage class to string. */
|
||
|
||
STATIC const char *
|
||
sc_to_string (storage_class)
|
||
sc_t storage_class;
|
||
{
|
||
switch (storage_class)
|
||
{
|
||
case sc_Nil: return "Nil,";
|
||
case sc_Text: return "Text,";
|
||
case sc_Data: return "Data,";
|
||
case sc_Bss: return "Bss,";
|
||
case sc_Register: return "Register,";
|
||
case sc_Abs: return "Abs,";
|
||
case sc_Undefined: return "Undefined,";
|
||
case sc_CdbLocal: return "CdbLocal,";
|
||
case sc_Bits: return "Bits,";
|
||
case sc_CdbSystem: return "CdbSystem,";
|
||
case sc_RegImage: return "RegImage,";
|
||
case sc_Info: return "Info,";
|
||
case sc_UserStruct: return "UserStruct,";
|
||
case sc_SData: return "SData,";
|
||
case sc_SBss: return "SBss,";
|
||
case sc_RData: return "RData,";
|
||
case sc_Var: return "Var,";
|
||
case sc_Common: return "Common,";
|
||
case sc_SCommon: return "SCommon,";
|
||
case sc_VarRegister: return "VarRegister,";
|
||
case sc_Variant: return "Variant,";
|
||
case sc_SUndefined: return "SUndefined,";
|
||
case sc_Init: return "Init,";
|
||
case sc_Max: return "Max,";
|
||
}
|
||
|
||
return "???,";
|
||
}
|
||
|
||
|
||
/* Convert symbol type to string. */
|
||
|
||
STATIC const char *
|
||
st_to_string (symbol_type)
|
||
st_t symbol_type;
|
||
{
|
||
switch (symbol_type)
|
||
{
|
||
case st_Nil: return "Nil,";
|
||
case st_Global: return "Global,";
|
||
case st_Static: return "Static,";
|
||
case st_Param: return "Param,";
|
||
case st_Local: return "Local,";
|
||
case st_Label: return "Label,";
|
||
case st_Proc: return "Proc,";
|
||
case st_Block: return "Block,";
|
||
case st_End: return "End,";
|
||
case st_Member: return "Member,";
|
||
case st_Typedef: return "Typedef,";
|
||
case st_File: return "File,";
|
||
case st_RegReloc: return "RegReloc,";
|
||
case st_Forward: return "Forward,";
|
||
case st_StaticProc: return "StaticProc,";
|
||
case st_Constant: return "Constant,";
|
||
case st_Str: return "String,";
|
||
case st_Number: return "Number,";
|
||
case st_Expr: return "Expr,";
|
||
case st_Type: return "Type,";
|
||
case st_Max: return "Max,";
|
||
}
|
||
|
||
return "???,";
|
||
}
|
||
|
||
|
||
/* Read a line from standard input, and return the start of the buffer
|
||
(which is grows if the line is too big). We split lines at the
|
||
semi-colon, and return each logical line independently. */
|
||
|
||
STATIC char *
|
||
read_line ()
|
||
{
|
||
static int line_split_p = 0;
|
||
int string_p = 0;
|
||
int comment_p = 0;
|
||
int ch;
|
||
char *ptr;
|
||
|
||
if (cur_line_start == (char *) 0)
|
||
{ /* allocate initial page */
|
||
cur_line_start = (char *) allocate_page ();
|
||
cur_line_alloc = PAGE_SIZE;
|
||
}
|
||
|
||
if (!line_split_p)
|
||
line_number++;
|
||
|
||
line_split_p = 0;
|
||
cur_line_nbytes = 0;
|
||
|
||
for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
|
||
{
|
||
if (++cur_line_nbytes >= cur_line_alloc-1)
|
||
{
|
||
int num_pages = cur_line_alloc / PAGE_SIZE;
|
||
char *old_buffer = cur_line_start;
|
||
|
||
cur_line_alloc += PAGE_SIZE;
|
||
cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
|
||
memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
|
||
|
||
ptr = cur_line_start + cur_line_nbytes - 1;
|
||
}
|
||
|
||
if (ch == '\n')
|
||
{
|
||
*ptr++ = '\n';
|
||
*ptr = '\0';
|
||
cur_line_ptr = cur_line_start;
|
||
return cur_line_ptr;
|
||
}
|
||
|
||
else if (ch == '\0')
|
||
error ("null character found in input");
|
||
|
||
else if (!comment_p)
|
||
{
|
||
if (ch == '"')
|
||
string_p = !string_p;
|
||
|
||
else if (ch == '#')
|
||
comment_p++;
|
||
|
||
else if (ch == ';' && !string_p)
|
||
{
|
||
line_split_p = 1;
|
||
*ptr++ = '\n';
|
||
*ptr = '\0';
|
||
cur_line_ptr = cur_line_start;
|
||
return cur_line_ptr;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (ferror (stdin))
|
||
pfatal_with_name (input_name);
|
||
|
||
cur_line_ptr = (char *) 0;
|
||
return (char *) 0;
|
||
}
|
||
|
||
|
||
/* Parse #.begin directives which have a label as the first argument
|
||
which gives the location of the start of the block. */
|
||
|
||
STATIC void
|
||
parse_begin (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
const char *end_p1; /* end of label */
|
||
int ch;
|
||
shash_t *hash_ptr; /* hash pointer to lookup label */
|
||
|
||
if (cur_file_ptr == (efdr_t *) 0)
|
||
{
|
||
error ("#.begin directive without a preceding .file directive");
|
||
return;
|
||
}
|
||
|
||
if (cur_proc_ptr == (PDR *) 0)
|
||
{
|
||
error ("#.begin directive without a preceding .ent directive");
|
||
return;
|
||
}
|
||
|
||
for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
|
||
;
|
||
|
||
hash_ptr = hash_string (start,
|
||
end_p1 - start,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (hash_ptr == (shash_t *) 0)
|
||
{
|
||
error ("label %.*s not found for #.begin",
|
||
(int) (end_p1 - start), start);
|
||
return;
|
||
}
|
||
|
||
if (cur_oproc_begin == (SYMR *) 0)
|
||
{
|
||
error ("procedure table %.*s not found for #.begin",
|
||
(int) (end_p1 - start), start);
|
||
return;
|
||
}
|
||
|
||
(void) add_local_symbol ((const char *) 0, (const char *) 0,
|
||
st_Block, sc_Text,
|
||
(symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
|
||
(symint_t) 0);
|
||
}
|
||
|
||
|
||
/* Parse #.bend directives which have a label as the first argument
|
||
which gives the location of the end of the block. */
|
||
|
||
STATIC void
|
||
parse_bend (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
const char *end_p1; /* end of label */
|
||
int ch;
|
||
shash_t *hash_ptr; /* hash pointer to lookup label */
|
||
|
||
if (cur_file_ptr == (efdr_t *) 0)
|
||
{
|
||
error ("#.begin directive without a preceding .file directive");
|
||
return;
|
||
}
|
||
|
||
if (cur_proc_ptr == (PDR *) 0)
|
||
{
|
||
error ("#.bend directive without a preceding .ent directive");
|
||
return;
|
||
}
|
||
|
||
for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
|
||
;
|
||
|
||
hash_ptr = hash_string (start,
|
||
end_p1 - start,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (hash_ptr == (shash_t *) 0)
|
||
{
|
||
error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
|
||
return;
|
||
}
|
||
|
||
if (cur_oproc_begin == (SYMR *) 0)
|
||
{
|
||
error ("procedure table %.*s not found for #.bend",
|
||
(int) (end_p1 - start), start);
|
||
return;
|
||
}
|
||
|
||
(void) add_local_symbol ((const char *) 0, (const char *) 0,
|
||
st_End, sc_Text,
|
||
(symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
|
||
(symint_t) 0);
|
||
}
|
||
|
||
|
||
/* Parse #.def directives, which are contain standard COFF subdirectives
|
||
to describe the debugging format. These subdirectives include:
|
||
|
||
.scl specify storage class
|
||
.val specify a value
|
||
.endef specify end of COFF directives
|
||
.type specify the type
|
||
.size specify the size of an array
|
||
.dim specify an array dimension
|
||
.tag specify a tag for a struct, union, or enum. */
|
||
|
||
STATIC void
|
||
parse_def (name_start)
|
||
const char *name_start; /* start of directive */
|
||
{
|
||
const char *dir_start; /* start of current directive*/
|
||
const char *dir_end_p1; /* end+1 of current directive*/
|
||
const char *arg_start; /* start of current argument */
|
||
const char *arg_end_p1; /* end+1 of current argument */
|
||
const char *name_end_p1; /* end+1 of label */
|
||
const char *tag_start = 0; /* start of tag name */
|
||
const char *tag_end_p1 = 0; /* end+1 of tag name */
|
||
sc_t storage_class = sc_Nil;
|
||
st_t symbol_type = st_Nil;
|
||
type_info_t t;
|
||
EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
|
||
int is_function = 0; /* != 0 if function */
|
||
symint_t value = 0;
|
||
symint_t indx = cur_file_ptr->void_type;
|
||
int error_line = 0;
|
||
symint_t arg_number;
|
||
symint_t temp_array[ N_TQ ];
|
||
int arg_was_number;
|
||
int ch, i;
|
||
Ptrdiff_t len;
|
||
|
||
static int inside_enumeration = 0; /* is this an enumeration? */
|
||
|
||
|
||
/* Initialize the type information. */
|
||
t = type_info_init;
|
||
|
||
|
||
/* Search for the end of the name being defined. */
|
||
/* Allow spaces and such in names for G++ templates, which produce stabs
|
||
that look like:
|
||
|
||
#.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
|
||
|
||
for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
|
||
;
|
||
|
||
if (ch == '\0')
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
/* Parse the remaining subdirectives now. */
|
||
dir_start = name_end_p1+1;
|
||
for (;;)
|
||
{
|
||
while ((ch = *dir_start) == ' ' || ch == '\t')
|
||
++dir_start;
|
||
|
||
if (ch != '.')
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
/* Are we done? */
|
||
if (dir_start[1] == 'e'
|
||
&& memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
|
||
break;
|
||
|
||
/* Pick up the subdirective now */
|
||
for (dir_end_p1 = dir_start+1;
|
||
(ch = *dir_end_p1) != ' ' && ch != '\t';
|
||
dir_end_p1++)
|
||
{
|
||
if (ch == '\0' || ISSPACE (ch))
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
}
|
||
|
||
/* Pick up the subdirective argument now. */
|
||
arg_was_number = arg_number = 0;
|
||
arg_end_p1 = 0;
|
||
arg_start = dir_end_p1+1;
|
||
ch = *arg_start;
|
||
while (ch == ' ' || ch == '\t')
|
||
ch = *++arg_start;
|
||
|
||
if (ISDIGIT (ch) || ch == '-' || ch == '+')
|
||
{
|
||
int ch2;
|
||
arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
|
||
if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
|
||
arg_was_number++;
|
||
}
|
||
|
||
else if (ch == '\0' || ISSPACE (ch))
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
if (!arg_was_number)
|
||
{
|
||
/* Allow spaces and such in names for G++ templates. */
|
||
for (arg_end_p1 = arg_start+1;
|
||
(ch = *arg_end_p1) != ';' && ch != '\0';
|
||
arg_end_p1++)
|
||
;
|
||
|
||
if (ch == '\0')
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
}
|
||
|
||
/* Classify the directives now. */
|
||
len = dir_end_p1 - dir_start;
|
||
switch (dir_start[1])
|
||
{
|
||
default:
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
|
||
case 'd':
|
||
if (len == sizeof (".dim")-1
|
||
&& memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
|
||
&& arg_was_number)
|
||
{
|
||
symint_t *t_ptr = &temp_array[ N_TQ-1 ];
|
||
|
||
*t_ptr = arg_number;
|
||
while (*arg_end_p1 == ',' && arg_was_number)
|
||
{
|
||
arg_start = arg_end_p1+1;
|
||
ch = *arg_start;
|
||
while (ch == ' ' || ch == '\t')
|
||
ch = *++arg_start;
|
||
|
||
arg_was_number = 0;
|
||
if (ISDIGIT (ch) || ch == '-' || ch == '+')
|
||
{
|
||
int ch2;
|
||
arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
|
||
if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
|
||
arg_was_number++;
|
||
|
||
if (t_ptr == &temp_array[0])
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
*--t_ptr = arg_number;
|
||
}
|
||
}
|
||
|
||
/* Reverse order of dimensions. */
|
||
while (t_ptr <= &temp_array[ N_TQ-1 ])
|
||
{
|
||
if (t.num_dims >= N_TQ-1)
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
t.dimensions[ t.num_dims++ ] = *t_ptr++;
|
||
}
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
|
||
case 's':
|
||
if (len == sizeof (".scl")-1
|
||
&& memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
|
||
&& arg_was_number
|
||
&& arg_number < ((symint_t) C_MAX))
|
||
{
|
||
/* If the symbol is a static or external, we have
|
||
already gotten the appropriate type and class, so
|
||
make sure we don't override those values. This is
|
||
needed because there are some type and classes that
|
||
are not in COFF, such as short data, etc. */
|
||
if (symbol_type == st_Nil)
|
||
{
|
||
symbol_type = map_coff_sym_type[arg_number];
|
||
storage_class = map_coff_storage [arg_number];
|
||
}
|
||
break;
|
||
}
|
||
|
||
else if (len == sizeof (".size")-1
|
||
&& memcmp (dir_start, ".size", sizeof (".size")-1) == 0
|
||
&& arg_was_number)
|
||
{
|
||
symint_t *t_ptr = &temp_array[ N_TQ-1 ];
|
||
|
||
*t_ptr = arg_number;
|
||
while (*arg_end_p1 == ',' && arg_was_number)
|
||
{
|
||
arg_start = arg_end_p1+1;
|
||
ch = *arg_start;
|
||
while (ch == ' ' || ch == '\t')
|
||
ch = *++arg_start;
|
||
|
||
arg_was_number = 0;
|
||
if (ISDIGIT (ch) || ch == '-' || ch == '+')
|
||
{
|
||
int ch2;
|
||
arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
|
||
if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
|
||
arg_was_number++;
|
||
|
||
if (t_ptr == &temp_array[0])
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
*--t_ptr = arg_number;
|
||
}
|
||
}
|
||
|
||
/* Reverse order of sizes. */
|
||
while (t_ptr <= &temp_array[ N_TQ-1 ])
|
||
{
|
||
if (t.num_sizes >= N_TQ-1)
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
t.sizes[ t.num_sizes++ ] = *t_ptr++;
|
||
}
|
||
break;
|
||
}
|
||
|
||
else
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
|
||
case 't':
|
||
if (len == sizeof (".type")-1
|
||
&& memcmp (dir_start, ".type", sizeof (".type")-1) == 0
|
||
&& arg_was_number)
|
||
{
|
||
tq_t *tq_ptr = &t.type_qualifiers[0];
|
||
|
||
t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
|
||
t.basic_type = map_coff_types [(int) t.orig_type];
|
||
for (i = N_TQ-1; i >= 0; i--)
|
||
{
|
||
int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
|
||
& N_TMASK);
|
||
|
||
if (dt != (int) DT_NON)
|
||
*tq_ptr++ = map_coff_derived_type [dt];
|
||
}
|
||
|
||
/* If this is a function, ignore it, so that we don't get
|
||
two entries (one from the .ent, and one for the .def
|
||
that precedes it). Save the type information so that
|
||
the end block can properly add it after the begin block
|
||
index. For MIPS knows what reason, we must strip off
|
||
the function type at this point. */
|
||
if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
|
||
{
|
||
is_function = 1;
|
||
tq_ptr[-1] = tq_Nil;
|
||
}
|
||
|
||
break;
|
||
}
|
||
|
||
else if (len == sizeof (".tag")-1
|
||
&& memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
|
||
{
|
||
tag_start = arg_start;
|
||
tag_end_p1 = arg_end_p1;
|
||
break;
|
||
}
|
||
|
||
else
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
|
||
case 'v':
|
||
if (len == sizeof (".val")-1
|
||
&& memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
|
||
{
|
||
if (arg_was_number)
|
||
value = arg_number;
|
||
|
||
/* If the value is not an integer value, it must be the
|
||
name of a static or global item. Look up the name in
|
||
the original symbol table to pick up the storage
|
||
class, symbol type, etc. */
|
||
else
|
||
{
|
||
shash_t *orig_hash_ptr; /* hash within orig sym table*/
|
||
shash_t *ext_hash_ptr; /* hash within ext. sym table*/
|
||
|
||
ext_hash_ptr = hash_string (arg_start,
|
||
arg_end_p1 - arg_start,
|
||
&ext_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (ext_hash_ptr != (shash_t *) 0
|
||
&& ext_hash_ptr->esym_ptr != (EXTR *) 0)
|
||
eptr = ext_hash_ptr->esym_ptr;
|
||
|
||
orig_hash_ptr = hash_string (arg_start,
|
||
arg_end_p1 - arg_start,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if ((orig_hash_ptr == (shash_t *) 0
|
||
|| orig_hash_ptr->sym_ptr == (SYMR *) 0)
|
||
&& eptr == (EXTR *) 0)
|
||
{
|
||
fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
|
||
(int) (arg_end_p1 - arg_start),
|
||
arg_start);
|
||
value = 0;
|
||
}
|
||
else
|
||
{
|
||
SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
|
||
&& orig_hash_ptr->sym_ptr != (SYMR *) 0)
|
||
? orig_hash_ptr->sym_ptr
|
||
: &eptr->asym;
|
||
|
||
symbol_type = (st_t) ptr->st;
|
||
storage_class = (sc_t) ptr->sc;
|
||
value = ptr->value;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
}
|
||
|
||
/* Set up to find next directive. */
|
||
dir_start = arg_end_p1 + 1;
|
||
}
|
||
|
||
|
||
if (storage_class == sc_Bits)
|
||
{
|
||
t.bitfield = 1;
|
||
t.extra_sizes = 1;
|
||
}
|
||
else
|
||
t.extra_sizes = 0;
|
||
|
||
if (t.num_dims > 0)
|
||
{
|
||
int num_real_sizes = t.num_sizes - t.extra_sizes;
|
||
int diff = t.num_dims - num_real_sizes;
|
||
int i = t.num_dims - 1;
|
||
int j;
|
||
|
||
if (num_real_sizes != 1 || diff < 0)
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
/* If this is an array, make sure the same number of dimensions
|
||
and sizes were passed, creating extra sizes for multiply
|
||
dimensioned arrays if not passed. */
|
||
|
||
if (diff)
|
||
{
|
||
for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
|
||
t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
|
||
|
||
t.num_sizes = i + 1;
|
||
for ( i--; i >= 0; i-- )
|
||
{
|
||
if (t.dimensions[ i+1 ])
|
||
t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
|
||
else
|
||
t.sizes[ i ] = t.sizes[ i+1 ];
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Except for enumeration members & begin/ending of scopes, put the
|
||
type word in the aux. symbol table. */
|
||
|
||
if (symbol_type == st_Block || symbol_type == st_End)
|
||
indx = 0;
|
||
|
||
else if (inside_enumeration)
|
||
indx = cur_file_ptr->void_type;
|
||
|
||
else
|
||
{
|
||
if (t.basic_type == bt_Struct
|
||
|| t.basic_type == bt_Union
|
||
|| t.basic_type == bt_Enum)
|
||
{
|
||
if (tag_start == (char *) 0)
|
||
{
|
||
error ("no tag specified for %.*s",
|
||
(int) (name_end_p1 - name_start),
|
||
name_start);
|
||
return;
|
||
}
|
||
|
||
t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
|
||
t.basic_type);
|
||
}
|
||
|
||
if (is_function)
|
||
{
|
||
last_func_type_info = t;
|
||
last_func_eptr = eptr;
|
||
return;
|
||
}
|
||
|
||
indx = add_aux_sym_tir (&t,
|
||
hash_yes,
|
||
&cur_file_ptr->thash_head[0]);
|
||
}
|
||
|
||
|
||
/* If this is an external or static symbol, update the appropriate
|
||
external symbol. */
|
||
|
||
if (eptr != (EXTR *) 0
|
||
&& (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
|
||
{
|
||
eptr->ifd = cur_file_ptr->file_index;
|
||
eptr->asym.index = indx;
|
||
}
|
||
|
||
|
||
/* Do any last minute adjustments that are necessary. */
|
||
switch (symbol_type)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
|
||
/* For the beginning of structs, unions, and enumerations, the
|
||
size info needs to be passed in the value field. */
|
||
|
||
case st_Block:
|
||
if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
|
||
{
|
||
error_line = __LINE__;
|
||
saber_stop ();
|
||
goto bomb_out;
|
||
}
|
||
|
||
else
|
||
value = t.sizes[0];
|
||
|
||
inside_enumeration = (t.orig_type == T_ENUM);
|
||
break;
|
||
|
||
|
||
/* For the end of structs, unions, and enumerations, omit the
|
||
name which is always ".eos". This needs to be done last, so
|
||
that any error reporting above gives the correct name. */
|
||
|
||
case st_End:
|
||
name_start = name_end_p1 = 0;
|
||
value = inside_enumeration = 0;
|
||
break;
|
||
|
||
|
||
/* Members of structures and unions that aren't bitfields, need
|
||
to adjust the value from a byte offset to a bit offset.
|
||
Members of enumerations do not have the value adjusted, and
|
||
can be distinguished by indx == indexNil. For enumerations,
|
||
update the maximum enumeration value. */
|
||
|
||
case st_Member:
|
||
if (!t.bitfield && !inside_enumeration)
|
||
value *= 8;
|
||
|
||
break;
|
||
}
|
||
|
||
|
||
/* Add the symbol, except for global symbols outside of functions,
|
||
for which the external symbol table is fine enough. */
|
||
|
||
if (eptr == (EXTR *) 0
|
||
|| eptr->asym.st == (int) st_Nil
|
||
|| cur_proc_ptr != (PDR *) 0)
|
||
{
|
||
symint_t isym = add_local_symbol (name_start, name_end_p1,
|
||
symbol_type, storage_class,
|
||
value,
|
||
indx);
|
||
|
||
/* deal with struct, union, and enum tags. */
|
||
if (symbol_type == st_Block)
|
||
{
|
||
/* Create or update the tag information. */
|
||
tag_t *tag_ptr = get_tag (name_start,
|
||
name_end_p1,
|
||
isym,
|
||
t.basic_type);
|
||
|
||
/* If there are any forward references, fill in the appropriate
|
||
file and symbol indexes. */
|
||
|
||
symint_t file_index = cur_file_ptr->file_index;
|
||
forward_t *f_next = tag_ptr->forward_ref;
|
||
forward_t *f_cur;
|
||
|
||
while (f_next != (forward_t *) 0)
|
||
{
|
||
f_cur = f_next;
|
||
f_next = f_next->next;
|
||
|
||
f_cur->ifd_ptr->isym = file_index;
|
||
f_cur->index_ptr->rndx.index = isym;
|
||
|
||
free_forward (f_cur);
|
||
}
|
||
|
||
tag_ptr->forward_ref = (forward_t *) 0;
|
||
}
|
||
}
|
||
|
||
/* Normal return */
|
||
return;
|
||
|
||
/* Error return, issue message. */
|
||
bomb_out:
|
||
if (error_line)
|
||
error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
|
||
else
|
||
error ("compiler error, badly formed #.def");
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* Parse .end directives. */
|
||
|
||
STATIC void
|
||
parse_end (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
const char *start_func, *end_func_p1;
|
||
int ch;
|
||
symint_t value;
|
||
FDR *orig_fdr;
|
||
|
||
if (cur_file_ptr == (efdr_t *) 0)
|
||
{
|
||
error (".end directive without a preceding .file directive");
|
||
return;
|
||
}
|
||
|
||
if (cur_proc_ptr == (PDR *) 0)
|
||
{
|
||
error (".end directive without a preceding .ent directive");
|
||
return;
|
||
}
|
||
|
||
/* Get the function name, skipping whitespace. */
|
||
for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
|
||
;
|
||
|
||
ch = *start_func;
|
||
if (!IS_ASM_IDENT (ch))
|
||
{
|
||
error (".end directive has no name");
|
||
return;
|
||
}
|
||
|
||
for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
|
||
;
|
||
|
||
|
||
/* Get the value field for creating the end from the original object
|
||
file (which we find by locating the procedure start, and using the
|
||
pointer to the end+1 block and backing up. The index points to a
|
||
two word aux. symbol, whose first word is the index of the end
|
||
symbol, and the second word is the type of the function return
|
||
value. */
|
||
|
||
orig_fdr = cur_file_ptr->orig_fdr;
|
||
value = 0;
|
||
if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
|
||
value = cur_oproc_end->value;
|
||
|
||
else
|
||
error ("cannot find .end block for %.*s",
|
||
(int) (end_func_p1 - start_func), start_func);
|
||
|
||
(void) add_local_symbol (start_func, end_func_p1,
|
||
st_End, sc_Text,
|
||
value,
|
||
(symint_t) 0);
|
||
|
||
cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
|
||
}
|
||
|
||
|
||
/* Parse .ent directives. */
|
||
|
||
STATIC void
|
||
parse_ent (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
const char *start_func, *end_func_p1;
|
||
int ch;
|
||
|
||
if (cur_file_ptr == (efdr_t *) 0)
|
||
{
|
||
error (".ent directive without a preceding .file directive");
|
||
return;
|
||
}
|
||
|
||
if (cur_proc_ptr != (PDR *) 0)
|
||
{
|
||
error ("second .ent directive found before .end directive");
|
||
return;
|
||
}
|
||
|
||
for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
|
||
;
|
||
|
||
ch = *start_func;
|
||
if (!IS_ASM_IDENT (ch))
|
||
{
|
||
error (".ent directive has no name");
|
||
return;
|
||
}
|
||
|
||
for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
|
||
;
|
||
|
||
(void) add_procedure (start_func, end_func_p1);
|
||
}
|
||
|
||
|
||
/* Parse .file directives. */
|
||
|
||
STATIC void
|
||
parse_file (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
char *p;
|
||
char *start_name, *end_name_p1;
|
||
|
||
(void) strtol (start, &p, 0);
|
||
if (start == p
|
||
|| (start_name = strchr (p, '"')) == (char *) 0
|
||
|| (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
|
||
{
|
||
error ("invalid .file directive");
|
||
return;
|
||
}
|
||
|
||
if (cur_proc_ptr != (PDR *) 0)
|
||
{
|
||
error ("no way to handle .file within .ent/.end section");
|
||
return;
|
||
}
|
||
|
||
add_file (start_name, end_name_p1);
|
||
}
|
||
|
||
|
||
/* Make sure the @stabs symbol is emitted. */
|
||
|
||
static void
|
||
mark_stabs (start)
|
||
const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
|
||
{
|
||
if (!stabs_seen)
|
||
{
|
||
/* Add a dummy @stabs symbol. */
|
||
stabs_seen = 1;
|
||
(void) add_local_symbol (stabs_symbol,
|
||
stabs_symbol + sizeof (stabs_symbol),
|
||
stNil, scInfo, -1, MIPS_MARK_STAB (0));
|
||
|
||
}
|
||
}
|
||
|
||
|
||
/* Parse .stabs directives.
|
||
|
||
.stabs directives have five fields:
|
||
"string" a string, encoding the type information.
|
||
code a numeric code, defined in <stab.h>
|
||
0 a zero
|
||
0 a zero or line number
|
||
value a numeric value or an address.
|
||
|
||
If the value is relocatable, we transform this into:
|
||
iss points as an index into string space
|
||
value value from lookup of the name
|
||
st st from lookup of the name
|
||
sc sc from lookup of the name
|
||
index code|CODE_MASK
|
||
|
||
If the value is not relocatable, we transform this into:
|
||
iss points as an index into string space
|
||
value value
|
||
st st_Nil
|
||
sc sc_Nil
|
||
index code|CODE_MASK
|
||
|
||
.stabn directives have four fields (string is null):
|
||
code a numeric code, defined in <stab.h>
|
||
0 a zero
|
||
0 a zero or a line number
|
||
value a numeric value or an address. */
|
||
|
||
STATIC void
|
||
parse_stabs_common (string_start, string_end, rest)
|
||
const char *string_start; /* start of string or NULL */
|
||
const char *string_end; /* end+1 of string or NULL */
|
||
const char *rest; /* rest of the directive. */
|
||
{
|
||
efdr_t *save_file_ptr = cur_file_ptr;
|
||
symint_t code;
|
||
symint_t value;
|
||
char *p;
|
||
st_t st;
|
||
sc_t sc;
|
||
int ch;
|
||
|
||
if (stabs_seen == 0)
|
||
mark_stabs ("");
|
||
|
||
/* Read code from stabs. */
|
||
if (!ISDIGIT (*rest))
|
||
{
|
||
error ("invalid .stabs/.stabn directive, code is non-numeric");
|
||
return;
|
||
}
|
||
|
||
code = strtol (rest, &p, 0);
|
||
|
||
/* Line number stabs are handled differently, since they have two values,
|
||
the line number and the address of the label. We use the index field
|
||
(aka code) to hold the line number, and the value field to hold the
|
||
address. The symbol type is st_Label, which should be different from
|
||
the other stabs, so that gdb can recognize it. */
|
||
|
||
if (code == (int) N_SLINE)
|
||
{
|
||
SYMR *sym_ptr, dummy_symr;
|
||
shash_t *shash_ptr;
|
||
|
||
/* Skip ,0, */
|
||
if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
|
||
{
|
||
error ("invalid line number .stabs/.stabn directive");
|
||
return;
|
||
}
|
||
|
||
code = strtol (p+3, &p, 0);
|
||
ch = *++p;
|
||
if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
|
||
{
|
||
error ("invalid line number .stabs/.stabn directive");
|
||
return;
|
||
}
|
||
|
||
dummy_symr.index = code;
|
||
if (dummy_symr.index != code)
|
||
{
|
||
error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
|
||
code);
|
||
|
||
return;
|
||
}
|
||
|
||
shash_ptr = hash_string (p,
|
||
strlen (p) - 1,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (shash_ptr == (shash_t *) 0
|
||
|| (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
|
||
{
|
||
error ("invalid .stabs/.stabn directive, value not found");
|
||
return;
|
||
}
|
||
|
||
if ((st_t) sym_ptr->st != st_Label)
|
||
{
|
||
error ("invalid line number .stabs/.stabn directive");
|
||
return;
|
||
}
|
||
|
||
st = st_Label;
|
||
sc = (sc_t) sym_ptr->sc;
|
||
value = sym_ptr->value;
|
||
}
|
||
else
|
||
{
|
||
/* Skip ,<num>,<num>, */
|
||
if (*p++ != ',')
|
||
goto failure;
|
||
for (; ISDIGIT (*p); p++)
|
||
;
|
||
if (*p++ != ',')
|
||
goto failure;
|
||
for (; ISDIGIT (*p); p++)
|
||
;
|
||
if (*p++ != ',')
|
||
goto failure;
|
||
ch = *p;
|
||
if (!IS_ASM_IDENT (ch) && ch != '-')
|
||
{
|
||
failure:
|
||
error ("invalid .stabs/.stabn directive, bad character");
|
||
return;
|
||
}
|
||
|
||
if (ISDIGIT (ch) || ch == '-')
|
||
{
|
||
st = st_Nil;
|
||
sc = sc_Nil;
|
||
value = strtol (p, &p, 0);
|
||
if (*p != '\n')
|
||
{
|
||
error ("invalid .stabs/.stabn directive, stuff after numeric value");
|
||
return;
|
||
}
|
||
}
|
||
else if (!IS_ASM_IDENT (ch))
|
||
{
|
||
error ("invalid .stabs/.stabn directive, bad character");
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
SYMR *sym_ptr;
|
||
shash_t *shash_ptr;
|
||
const char *start, *end_p1;
|
||
|
||
start = p;
|
||
if ((end_p1 = strchr (start, '+')) == (char *) 0)
|
||
{
|
||
if ((end_p1 = strchr (start, '-')) == (char *) 0)
|
||
end_p1 = start + strlen (start) - 1;
|
||
}
|
||
|
||
shash_ptr = hash_string (start,
|
||
end_p1 - start,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (shash_ptr == (shash_t *) 0
|
||
|| (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
|
||
{
|
||
shash_ptr = hash_string (start,
|
||
end_p1 - start,
|
||
&ext_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (shash_ptr == (shash_t *) 0
|
||
|| shash_ptr->esym_ptr == (EXTR *) 0)
|
||
{
|
||
error ("invalid .stabs/.stabn directive, value not found");
|
||
return;
|
||
}
|
||
else
|
||
sym_ptr = &(shash_ptr->esym_ptr->asym);
|
||
}
|
||
|
||
/* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
|
||
if (code == (int) N_LBRAC || code == (int) N_RBRAC)
|
||
{
|
||
sc = scNil;
|
||
st = stNil;
|
||
}
|
||
else
|
||
{
|
||
sc = (sc_t) sym_ptr->sc;
|
||
st = (st_t) sym_ptr->st;
|
||
}
|
||
value = sym_ptr->value;
|
||
|
||
ch = *end_p1++;
|
||
if (ch != '\n')
|
||
{
|
||
if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
|
||
|| ((ch != '+') && (ch != '-')))
|
||
{
|
||
error ("invalid .stabs/.stabn directive, badly formed value");
|
||
return;
|
||
}
|
||
if (ch == '+')
|
||
value += strtol (end_p1, &p, 0);
|
||
else if (ch == '-')
|
||
value -= strtol (end_p1, &p, 0);
|
||
|
||
if (*p != '\n')
|
||
{
|
||
error ("invalid .stabs/.stabn directive, stuff after numeric value");
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
code = MIPS_MARK_STAB (code);
|
||
}
|
||
|
||
(void) add_local_symbol (string_start, string_end, st, sc, value, code);
|
||
/* Restore normal file type. */
|
||
cur_file_ptr = save_file_ptr;
|
||
}
|
||
|
||
|
||
STATIC void
|
||
parse_stabs (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
const char *end = strchr (start+1, '"');
|
||
|
||
if (*start != '"' || end == (const char *) 0 || end[1] != ',')
|
||
{
|
||
error ("invalid .stabs directive, no string");
|
||
return;
|
||
}
|
||
|
||
parse_stabs_common (start+1, end, end+2);
|
||
}
|
||
|
||
|
||
STATIC void
|
||
parse_stabn (start)
|
||
const char *start; /* start of directive */
|
||
{
|
||
parse_stabs_common ((const char *) 0, (const char *) 0, start);
|
||
}
|
||
|
||
|
||
/* Parse the input file, and write the lines to the output file
|
||
if needed. */
|
||
|
||
STATIC void
|
||
parse_input ()
|
||
{
|
||
char *p;
|
||
Size_t i;
|
||
thead_t *ptag_head;
|
||
tag_t *ptag;
|
||
tag_t *ptag_next;
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\tinput\n");
|
||
|
||
/* Add a dummy scope block around the entire compilation unit for
|
||
structures defined outside of blocks. */
|
||
ptag_head = allocate_thead ();
|
||
ptag_head->first_tag = 0;
|
||
ptag_head->prev = cur_tag_head;
|
||
cur_tag_head = ptag_head;
|
||
|
||
while ((p = read_line ()) != (char *) 0)
|
||
{
|
||
/* Skip leading blanks */
|
||
while (ISSPACE ((unsigned char)*p))
|
||
p++;
|
||
|
||
/* See if it's a directive we handle. If so, dispatch handler. */
|
||
for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
|
||
if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
|
||
&& ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
|
||
{
|
||
p += pseudo_ops[i].len; /* skip to first argument */
|
||
while (ISSPACE ((unsigned char)*p))
|
||
p++;
|
||
|
||
(*pseudo_ops[i].func)( p );
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Process any tags at global level. */
|
||
ptag_head = cur_tag_head;
|
||
cur_tag_head = ptag_head->prev;
|
||
|
||
for (ptag = ptag_head->first_tag;
|
||
ptag != (tag_t *) 0;
|
||
ptag = ptag_next)
|
||
{
|
||
if (ptag->forward_ref != (forward_t *) 0)
|
||
add_unknown_tag (ptag);
|
||
|
||
ptag_next = ptag->same_block;
|
||
ptag->hash_ptr->tag_ptr = ptag->same_name;
|
||
free_tag (ptag);
|
||
}
|
||
|
||
free_thead (ptag_head);
|
||
|
||
}
|
||
|
||
|
||
/* Update the global headers with the final offsets in preparation
|
||
to write out the .T file. */
|
||
|
||
STATIC void
|
||
update_headers ()
|
||
{
|
||
symint_t i;
|
||
efdr_t *file_ptr;
|
||
|
||
/* Set up the symbolic header. */
|
||
file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
|
||
symbolic_header.magic = orig_sym_hdr.magic;
|
||
symbolic_header.vstamp = orig_sym_hdr.vstamp;
|
||
|
||
/* Set up global counts. */
|
||
symbolic_header.issExtMax = ext_strings.num_allocated;
|
||
symbolic_header.idnMax = dense_num.num_allocated;
|
||
symbolic_header.ifdMax = file_desc.num_allocated;
|
||
symbolic_header.iextMax = ext_symbols.num_allocated;
|
||
symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
|
||
symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
|
||
symbolic_header.cbLine = orig_sym_hdr.cbLine;
|
||
symbolic_header.crfd = orig_sym_hdr.crfd;
|
||
|
||
|
||
/* Loop through each file, figuring out how many local syms,
|
||
line numbers, etc. there are. Also, put out end symbol
|
||
for the filename. */
|
||
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
SYMR *sym_start;
|
||
SYMR *sym;
|
||
SYMR *sym_end_p1;
|
||
FDR *fd_ptr = file_ptr->orig_fdr;
|
||
|
||
cur_file_ptr = file_ptr;
|
||
|
||
/* Copy st_Static symbols from the original local symbol table if
|
||
they did not get added to the new local symbol table.
|
||
This happens with stabs-in-ecoff or if the source file is
|
||
compiled without debugging. */
|
||
sym_start = ORIG_LSYMS (fd_ptr->isymBase);
|
||
sym_end_p1 = sym_start + fd_ptr->csym;
|
||
for (sym = sym_start; sym < sym_end_p1; sym++)
|
||
{
|
||
if ((st_t) sym->st == st_Static)
|
||
{
|
||
char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
|
||
Size_t len = strlen (str);
|
||
shash_t *hash_ptr;
|
||
|
||
/* Ignore internal labels. */
|
||
if (str[0] == '$' && str[1] == 'L')
|
||
continue;
|
||
hash_ptr = hash_string (str,
|
||
(Ptrdiff_t) len,
|
||
&file_ptr->shash_head[0],
|
||
(symint_t *) 0);
|
||
if (hash_ptr == (shash_t *) 0)
|
||
{
|
||
(void) add_local_symbol (str, str + len,
|
||
(st_t) sym->st, (sc_t) sym->sc,
|
||
(symint_t) sym->value,
|
||
(symint_t) indexNil);
|
||
}
|
||
}
|
||
}
|
||
(void) add_local_symbol ((const char *) 0, (const char *) 0,
|
||
st_End, sc_Text,
|
||
(symint_t) 0,
|
||
(symint_t) 0);
|
||
|
||
file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
|
||
file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
|
||
symbolic_header.ipdMax += file_ptr->fdr.cpd;
|
||
|
||
file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
|
||
file_ptr->fdr.isymBase = symbolic_header.isymMax;
|
||
symbolic_header.isymMax += file_ptr->fdr.csym;
|
||
|
||
file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
|
||
file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
|
||
symbolic_header.iauxMax += file_ptr->fdr.caux;
|
||
|
||
file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
|
||
file_ptr->fdr.issBase = symbolic_header.issMax;
|
||
symbolic_header.issMax += file_ptr->fdr.cbSs;
|
||
}
|
||
|
||
#ifndef ALIGN_SYMTABLE_OFFSET
|
||
#define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
|
||
#endif
|
||
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbLineOffset = file_offset;
|
||
file_offset += i;
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.ioptMax; /* optimization symbols */
|
||
if (((long) i) > 0)
|
||
{
|
||
symbolic_header.cbOptOffset = file_offset;
|
||
file_offset += i * sizeof (OPTR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.idnMax; /* dense numbers */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbDnOffset = file_offset;
|
||
file_offset += i * sizeof (DNR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.ipdMax; /* procedure tables */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbPdOffset = file_offset;
|
||
file_offset += i * sizeof (PDR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.isymMax; /* local symbols */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbSymOffset = file_offset;
|
||
file_offset += i * sizeof (SYMR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.iauxMax; /* aux syms. */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbAuxOffset = file_offset;
|
||
file_offset += i * sizeof (TIR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbSsOffset = file_offset;
|
||
file_offset += i;
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbSsExtOffset = file_offset;
|
||
file_offset += i;
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.ifdMax; /* file tables */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbFdOffset = file_offset;
|
||
file_offset += i * sizeof (FDR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.crfd; /* relative file descriptors */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbRfdOffset = file_offset;
|
||
file_offset += i * sizeof (symint_t);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
|
||
i = symbolic_header.iextMax; /* external symbols */
|
||
if (i > 0)
|
||
{
|
||
symbolic_header.cbExtOffset = file_offset;
|
||
file_offset += i * sizeof (EXTR);
|
||
file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
|
||
}
|
||
}
|
||
|
||
|
||
/* Write out a varray at a given location. */
|
||
|
||
STATIC void
|
||
write_varray (vp, offset, str)
|
||
varray_t *vp; /* virtual array */
|
||
off_t offset; /* offset to write varray to */
|
||
const char *str; /* string to print out when tracing */
|
||
{
|
||
int num_write, sys_write;
|
||
vlinks_t *ptr;
|
||
|
||
if (vp->num_allocated == 0)
|
||
return;
|
||
|
||
if (debug)
|
||
{
|
||
fputs ("\twarray\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) vp);
|
||
fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
|
||
(unsigned long) offset, vp->num_allocated * vp->object_size, str);
|
||
}
|
||
|
||
if (file_offset != offset
|
||
&& fseek (object_stream, (long) offset, SEEK_SET) < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
|
||
{
|
||
num_write = (ptr->next == (vlinks_t *) 0)
|
||
? vp->objects_last_page * vp->object_size
|
||
: vp->objects_per_page * vp->object_size;
|
||
|
||
sys_write = fwrite ((PTR) ptr->datum, 1, num_write, object_stream);
|
||
if (sys_write <= 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != num_write)
|
||
fatal ("wrote %d bytes to %s, system returned %d",
|
||
num_write,
|
||
object_name,
|
||
sys_write);
|
||
|
||
file_offset += num_write;
|
||
}
|
||
}
|
||
|
||
|
||
/* Write out the symbol table in the object file. */
|
||
|
||
STATIC void
|
||
write_object ()
|
||
{
|
||
int sys_write;
|
||
efdr_t *file_ptr;
|
||
off_t offset;
|
||
|
||
if (debug)
|
||
{
|
||
fputs ("\n\twrite\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) &symbolic_header);
|
||
fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
|
||
0, (unsigned long) sizeof (symbolic_header), "symbolic header");
|
||
}
|
||
|
||
sys_write = fwrite ((PTR) &symbolic_header,
|
||
1,
|
||
sizeof (symbolic_header),
|
||
object_stream);
|
||
|
||
if (sys_write < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != sizeof (symbolic_header))
|
||
fatal ("wrote %d bytes to %s, system returned %d",
|
||
(int) sizeof (symbolic_header),
|
||
object_name,
|
||
sys_write);
|
||
|
||
|
||
file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
|
||
|
||
if (symbolic_header.cbLine > 0) /* line numbers */
|
||
{
|
||
long sys_write;
|
||
|
||
if (file_offset != symbolic_header.cbLineOffset
|
||
&& fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (debug)
|
||
{
|
||
fputs ("\twrite\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_linenum);
|
||
fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
|
||
(long) symbolic_header.cbLineOffset,
|
||
(long) symbolic_header.cbLine, "Line numbers");
|
||
}
|
||
|
||
sys_write = fwrite ((PTR) orig_linenum,
|
||
1,
|
||
symbolic_header.cbLine,
|
||
object_stream);
|
||
|
||
if (sys_write <= 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != symbolic_header.cbLine)
|
||
fatal ("wrote %ld bytes to %s, system returned %ld",
|
||
(long) symbolic_header.cbLine,
|
||
object_name,
|
||
sys_write);
|
||
|
||
file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
|
||
}
|
||
|
||
if (symbolic_header.ioptMax > 0) /* optimization symbols */
|
||
{
|
||
long sys_write;
|
||
long num_write = symbolic_header.ioptMax * sizeof (OPTR);
|
||
|
||
if (file_offset != symbolic_header.cbOptOffset
|
||
&& fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (debug)
|
||
{
|
||
fputs ("\twrite\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_opt_syms);
|
||
fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
|
||
(long) symbolic_header.cbOptOffset,
|
||
num_write, "Optimizer symbols");
|
||
}
|
||
|
||
sys_write = fwrite ((PTR) orig_opt_syms,
|
||
1,
|
||
num_write,
|
||
object_stream);
|
||
|
||
if (sys_write <= 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != num_write)
|
||
fatal ("wrote %ld bytes to %s, system returned %ld",
|
||
num_write,
|
||
object_name,
|
||
sys_write);
|
||
|
||
file_offset = symbolic_header.cbOptOffset + num_write;
|
||
}
|
||
|
||
if (symbolic_header.idnMax > 0) /* dense numbers */
|
||
write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
|
||
|
||
if (symbolic_header.ipdMax > 0) /* procedure tables */
|
||
{
|
||
offset = symbolic_header.cbPdOffset;
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
write_varray (&file_ptr->procs, offset, "Procedure tables");
|
||
offset = file_offset;
|
||
}
|
||
}
|
||
|
||
if (symbolic_header.isymMax > 0) /* local symbols */
|
||
{
|
||
offset = symbolic_header.cbSymOffset;
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
write_varray (&file_ptr->symbols, offset, "Local symbols");
|
||
offset = file_offset;
|
||
}
|
||
}
|
||
|
||
if (symbolic_header.iauxMax > 0) /* aux symbols */
|
||
{
|
||
offset = symbolic_header.cbAuxOffset;
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
|
||
offset = file_offset;
|
||
}
|
||
}
|
||
|
||
if (symbolic_header.issMax > 0) /* local strings */
|
||
{
|
||
offset = symbolic_header.cbSsOffset;
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
write_varray (&file_ptr->strings, offset, "Local strings");
|
||
offset = file_offset;
|
||
}
|
||
}
|
||
|
||
if (symbolic_header.issExtMax > 0) /* external strings */
|
||
write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
|
||
|
||
if (symbolic_header.ifdMax > 0) /* file tables */
|
||
{
|
||
offset = symbolic_header.cbFdOffset;
|
||
if (file_offset != offset
|
||
&& fseek (object_stream, (long) offset, SEEK_SET) < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
file_offset = offset;
|
||
for (file_ptr = first_file;
|
||
file_ptr != (efdr_t *) 0;
|
||
file_ptr = file_ptr->next_file)
|
||
{
|
||
if (debug)
|
||
{
|
||
fputs ("\twrite\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) &file_ptr->fdr);
|
||
fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
|
||
file_offset, (unsigned long) sizeof (FDR),
|
||
"File header");
|
||
}
|
||
|
||
sys_write = fwrite (&file_ptr->fdr,
|
||
1,
|
||
sizeof (FDR),
|
||
object_stream);
|
||
|
||
if (sys_write < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != sizeof (FDR))
|
||
fatal ("wrote %d bytes to %s, system returned %d",
|
||
(int) sizeof (FDR),
|
||
object_name,
|
||
sys_write);
|
||
|
||
file_offset = offset += sizeof (FDR);
|
||
}
|
||
}
|
||
|
||
if (symbolic_header.crfd > 0) /* relative file descriptors */
|
||
{
|
||
long sys_write;
|
||
symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
|
||
|
||
if (file_offset != symbolic_header.cbRfdOffset
|
||
&& fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (debug)
|
||
{
|
||
fputs ("\twrite\tvp = ", stderr);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_rfds);
|
||
fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
|
||
(long) symbolic_header.cbRfdOffset,
|
||
num_write, "Relative file descriptors");
|
||
}
|
||
|
||
sys_write = fwrite (orig_rfds,
|
||
1,
|
||
num_write,
|
||
object_stream);
|
||
|
||
if (sys_write <= 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != (long) num_write)
|
||
fatal ("wrote %lu bytes to %s, system returned %ld",
|
||
num_write,
|
||
object_name,
|
||
sys_write);
|
||
|
||
file_offset = symbolic_header.cbRfdOffset + num_write;
|
||
}
|
||
|
||
if (symbolic_header.issExtMax > 0) /* external symbols */
|
||
write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
|
||
|
||
if (fclose (object_stream) != 0)
|
||
pfatal_with_name (object_name);
|
||
}
|
||
|
||
|
||
/* Read some bytes at a specified location, and return a pointer. */
|
||
|
||
STATIC page_t *
|
||
read_seek (size, offset, str)
|
||
Size_t size; /* # bytes to read */
|
||
off_t offset; /* offset to read at */
|
||
const char *str; /* name for tracing */
|
||
{
|
||
page_t *ptr;
|
||
long sys_read = 0;
|
||
|
||
if (size == 0) /* nothing to read */
|
||
return (page_t *) 0;
|
||
|
||
if (debug)
|
||
fprintf (stderr,
|
||
"\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
|
||
(unsigned long) size, (unsigned long) offset, file_offset, str);
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
|
||
#else
|
||
ptr = (page_t *) xcalloc (1, size);
|
||
#endif
|
||
|
||
/* If we need to seek, and the distance is nearby, just do some reads,
|
||
to speed things up. */
|
||
if (file_offset != offset)
|
||
{
|
||
symint_t difference = offset - file_offset;
|
||
|
||
if (difference < 8)
|
||
{
|
||
char small_buffer[8];
|
||
|
||
sys_read = fread (small_buffer, 1, difference, obj_in_stream);
|
||
if (sys_read <= 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
if ((symint_t) sys_read != difference)
|
||
fatal ("wanted to read %lu bytes from %s, system returned %ld",
|
||
(unsigned long) size,
|
||
obj_in_name,
|
||
sys_read);
|
||
}
|
||
else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
|
||
pfatal_with_name (obj_in_name);
|
||
}
|
||
|
||
sys_read = fread ((PTR) ptr, 1, size, obj_in_stream);
|
||
if (sys_read <= 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
if (sys_read != (long) size)
|
||
fatal ("wanted to read %lu bytes from %s, system returned %ld",
|
||
(unsigned long) size,
|
||
obj_in_name,
|
||
sys_read);
|
||
|
||
file_offset = offset + size;
|
||
|
||
if (file_offset > max_file_offset)
|
||
max_file_offset = file_offset;
|
||
|
||
return ptr;
|
||
}
|
||
|
||
|
||
/* Read the existing object file (and copy to the output object file
|
||
if it is different from the input object file), and remove the old
|
||
symbol table. */
|
||
|
||
STATIC void
|
||
copy_object ()
|
||
{
|
||
char buffer[ PAGE_SIZE ];
|
||
int sys_read;
|
||
int remaining;
|
||
int num_write;
|
||
int sys_write;
|
||
int fd, es;
|
||
int delete_ifd = 0;
|
||
int *remap_file_number;
|
||
struct stat stat_buf;
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\tcopy\n");
|
||
|
||
if (fstat (fileno (obj_in_stream), &stat_buf) != 0
|
||
|| fseek (obj_in_stream, 0L, SEEK_SET) != 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
sys_read = fread ((PTR) &orig_file_header,
|
||
1,
|
||
sizeof (struct filehdr),
|
||
obj_in_stream);
|
||
|
||
if (sys_read < 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
else if (sys_read == 0 && feof (obj_in_stream))
|
||
return; /* create a .T file sans file header */
|
||
|
||
else if (sys_read < (int) sizeof (struct filehdr))
|
||
fatal ("wanted to read %d bytes from %s, system returned %d",
|
||
(int) sizeof (struct filehdr),
|
||
obj_in_name,
|
||
sys_read);
|
||
|
||
|
||
if (orig_file_header.f_nsyms != sizeof (HDRR))
|
||
fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
|
||
input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
|
||
|
||
|
||
/* Read in the current symbolic header. */
|
||
if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
|
||
pfatal_with_name (input_name);
|
||
|
||
sys_read = fread ((PTR) &orig_sym_hdr,
|
||
1,
|
||
sizeof (orig_sym_hdr),
|
||
obj_in_stream);
|
||
|
||
if (sys_read < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_read < (int) sizeof (struct filehdr))
|
||
fatal ("wanted to read %d bytes from %s, system returned %d",
|
||
(int) sizeof (struct filehdr),
|
||
obj_in_name,
|
||
sys_read);
|
||
|
||
|
||
/* Read in each of the sections if they exist in the object file.
|
||
We read things in in the order the mips assembler creates the
|
||
sections, so in theory no extra seeks are done.
|
||
|
||
For simplicity sake, round each read up to a page boundary,
|
||
we may want to revisit this later.... */
|
||
|
||
file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
|
||
|
||
if (orig_sym_hdr.cbLine > 0) /* line numbers */
|
||
orig_linenum = (char *) read_seek ((Size_t) orig_sym_hdr.cbLine,
|
||
orig_sym_hdr.cbLineOffset,
|
||
"Line numbers");
|
||
|
||
if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
|
||
orig_procs = (PDR *) read_seek ((Size_t) orig_sym_hdr.ipdMax * sizeof (PDR),
|
||
orig_sym_hdr.cbPdOffset,
|
||
"Procedure tables");
|
||
|
||
if (orig_sym_hdr.isymMax > 0) /* local symbols */
|
||
orig_local_syms = (SYMR *) read_seek ((Size_t) orig_sym_hdr.isymMax * sizeof (SYMR),
|
||
orig_sym_hdr.cbSymOffset,
|
||
"Local symbols");
|
||
|
||
if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
|
||
orig_aux_syms = (AUXU *) read_seek ((Size_t) orig_sym_hdr.iauxMax * sizeof (AUXU),
|
||
orig_sym_hdr.cbAuxOffset,
|
||
"Aux. symbols");
|
||
|
||
if (orig_sym_hdr.issMax > 0) /* local strings */
|
||
orig_local_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issMax,
|
||
orig_sym_hdr.cbSsOffset,
|
||
"Local strings");
|
||
|
||
if (orig_sym_hdr.issExtMax > 0) /* external strings */
|
||
orig_ext_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issExtMax,
|
||
orig_sym_hdr.cbSsExtOffset,
|
||
"External strings");
|
||
|
||
if (orig_sym_hdr.ifdMax > 0) /* file tables */
|
||
orig_files = (FDR *) read_seek ((Size_t) orig_sym_hdr.ifdMax * sizeof (FDR),
|
||
orig_sym_hdr.cbFdOffset,
|
||
"File tables");
|
||
|
||
if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
|
||
orig_rfds = (symint_t *) read_seek ((Size_t) orig_sym_hdr.crfd * sizeof (symint_t),
|
||
orig_sym_hdr.cbRfdOffset,
|
||
"Relative file descriptors");
|
||
|
||
if (orig_sym_hdr.issExtMax > 0) /* external symbols */
|
||
orig_ext_syms = (EXTR *) read_seek ((Size_t) orig_sym_hdr.iextMax * sizeof (EXTR),
|
||
orig_sym_hdr.cbExtOffset,
|
||
"External symbols");
|
||
|
||
if (orig_sym_hdr.idnMax > 0) /* dense numbers */
|
||
{
|
||
orig_dense = (DNR *) read_seek ((Size_t) orig_sym_hdr.idnMax * sizeof (DNR),
|
||
orig_sym_hdr.cbDnOffset,
|
||
"Dense numbers");
|
||
|
||
add_bytes (&dense_num, (char *) orig_dense, (Size_t) orig_sym_hdr.idnMax);
|
||
}
|
||
|
||
if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
|
||
orig_opt_syms = (OPTR *) read_seek ((Size_t) orig_sym_hdr.ioptMax * sizeof (OPTR),
|
||
orig_sym_hdr.cbOptOffset,
|
||
"Optimizer symbols");
|
||
|
||
|
||
|
||
/* Abort if the symbol table is not last. */
|
||
if (max_file_offset != stat_buf.st_size)
|
||
fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
|
||
max_file_offset,
|
||
(long) stat_buf.st_size);
|
||
|
||
|
||
/* If the first original file descriptor is a dummy which the assembler
|
||
put out, but there are no symbols in it, skip it now. */
|
||
if (orig_sym_hdr.ifdMax > 1
|
||
&& orig_files->csym == 2
|
||
&& orig_files->caux == 0)
|
||
{
|
||
char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
|
||
char *suffix = strrchr (filename, '.');
|
||
|
||
if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
|
||
delete_ifd = 1;
|
||
}
|
||
|
||
|
||
/* Create array to map original file numbers to the new file numbers
|
||
(in case there are duplicate filenames, we collapse them into one
|
||
file section, the MIPS assembler may or may not collapse them). */
|
||
|
||
remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
|
||
|
||
for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
|
||
{
|
||
FDR *fd_ptr = ORIG_FILES (fd);
|
||
char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
|
||
|
||
/* file support itself. */
|
||
add_file (filename, filename + strlen (filename));
|
||
remap_file_number[fd] = cur_file_ptr->file_index;
|
||
}
|
||
|
||
if (delete_ifd > 0) /* just in case */
|
||
remap_file_number[0] = remap_file_number[1];
|
||
|
||
|
||
/* Loop, adding each of the external symbols. These must be in
|
||
order or otherwise we would have to change the relocation
|
||
entries. We don't just call add_bytes, because we need to have
|
||
the names put into the external hash table. We set the type to
|
||
'void' for now, and parse_def will fill in the correct type if it
|
||
is in the symbol table. We must add the external symbols before
|
||
the locals, since the locals do lookups against the externals. */
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\tehash\n");
|
||
|
||
for (es = 0; es < orig_sym_hdr.iextMax; es++)
|
||
{
|
||
EXTR *eptr = orig_ext_syms + es;
|
||
unsigned ifd = eptr->ifd;
|
||
|
||
(void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
|
||
? remap_file_number[ ifd ] : ifd );
|
||
}
|
||
|
||
|
||
/* For each of the files in the object file, copy the symbols, and such
|
||
into the varrays for the new object file. */
|
||
|
||
for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
|
||
{
|
||
FDR *fd_ptr = ORIG_FILES (fd);
|
||
char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
|
||
SYMR *sym_start;
|
||
SYMR *sym;
|
||
SYMR *sym_end_p1;
|
||
PDR *proc_start;
|
||
PDR *proc;
|
||
PDR *proc_end_p1;
|
||
|
||
/* file support itself. */
|
||
add_file (filename, filename + strlen (filename));
|
||
cur_file_ptr->orig_fdr = fd_ptr;
|
||
|
||
/* Copy stuff that's just passed through (such as line #'s) */
|
||
cur_file_ptr->fdr.adr = fd_ptr->adr;
|
||
cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
|
||
cur_file_ptr->fdr.cline = fd_ptr->cline;
|
||
cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
|
||
cur_file_ptr->fdr.crfd = fd_ptr->crfd;
|
||
cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
|
||
cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
|
||
cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
|
||
cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
|
||
cur_file_ptr->fdr.glevel = fd_ptr->glevel;
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\thash\tstart, filename %s\n", filename);
|
||
|
||
/* For each of the static and global symbols defined, add them
|
||
to the hash table of original symbols, so we can look up
|
||
their values. */
|
||
|
||
sym_start = ORIG_LSYMS (fd_ptr->isymBase);
|
||
sym_end_p1 = sym_start + fd_ptr->csym;
|
||
for (sym = sym_start; sym < sym_end_p1; sym++)
|
||
{
|
||
switch ((st_t) sym->st)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case st_Global:
|
||
case st_Static:
|
||
case st_Label:
|
||
case st_Proc:
|
||
case st_StaticProc:
|
||
{
|
||
auto symint_t hash_index;
|
||
char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
|
||
Size_t len = strlen (str);
|
||
shash_t *shash_ptr = hash_string (str,
|
||
(Ptrdiff_t) len,
|
||
&orig_str_hash[0],
|
||
&hash_index);
|
||
|
||
if (shash_ptr != (shash_t *) 0)
|
||
error ("internal error, %s is already in original symbol table", str);
|
||
|
||
else
|
||
{
|
||
shash_ptr = allocate_shash ();
|
||
shash_ptr->next = orig_str_hash[hash_index];
|
||
orig_str_hash[hash_index] = shash_ptr;
|
||
|
||
shash_ptr->len = len;
|
||
shash_ptr->indx = indexNil;
|
||
shash_ptr->string = str;
|
||
shash_ptr->sym_ptr = sym;
|
||
}
|
||
}
|
||
break;
|
||
|
||
case st_End:
|
||
if ((sc_t) sym->sc == sc_Text)
|
||
{
|
||
char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
|
||
|
||
if (*str != '\0')
|
||
{
|
||
Size_t len = strlen (str);
|
||
shash_t *shash_ptr = hash_string (str,
|
||
(Ptrdiff_t) len,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (shash_ptr != (shash_t *) 0)
|
||
shash_ptr->end_ptr = sym;
|
||
}
|
||
}
|
||
break;
|
||
|
||
}
|
||
}
|
||
|
||
if (debug)
|
||
{
|
||
fprintf (stderr, "\thash\tdone, filename %s\n", filename);
|
||
fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
|
||
}
|
||
|
||
/* Go through each of the procedures in this file, and add the
|
||
procedure pointer to the hash entry for the given name. */
|
||
|
||
proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
|
||
proc_end_p1 = proc_start + fd_ptr->cpd;
|
||
for (proc = proc_start; proc < proc_end_p1; proc++)
|
||
{
|
||
SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
|
||
char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
|
||
Size_t len = strlen (str);
|
||
shash_t *shash_ptr = hash_string (str,
|
||
(Ptrdiff_t) len,
|
||
&orig_str_hash[0],
|
||
(symint_t *) 0);
|
||
|
||
if (shash_ptr == (shash_t *) 0)
|
||
error ("internal error, function %s is not in original symbol table", str);
|
||
|
||
else
|
||
shash_ptr->proc_ptr = proc;
|
||
}
|
||
|
||
if (debug)
|
||
fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
|
||
|
||
}
|
||
cur_file_ptr = first_file;
|
||
|
||
|
||
/* Copy all of the object file up to the symbol table. Originally
|
||
we were going to use ftruncate, but that doesn't seem to work
|
||
on Ultrix 3.1.... */
|
||
|
||
if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
for (remaining = orig_file_header.f_symptr;
|
||
remaining > 0;
|
||
remaining -= num_write)
|
||
{
|
||
num_write
|
||
= (remaining <= (int) sizeof (buffer))
|
||
? remaining : (int) sizeof (buffer);
|
||
sys_read = fread ((PTR) buffer, 1, num_write, obj_in_stream);
|
||
if (sys_read <= 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
else if (sys_read != num_write)
|
||
fatal ("wanted to read %d bytes from %s, system returned %d",
|
||
num_write,
|
||
obj_in_name,
|
||
sys_read);
|
||
|
||
sys_write = fwrite (buffer, 1, num_write, object_stream);
|
||
if (sys_write <= 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
else if (sys_write != num_write)
|
||
fatal ("wrote %d bytes to %s, system returned %d",
|
||
num_write,
|
||
object_name,
|
||
sys_write);
|
||
}
|
||
}
|
||
|
||
|
||
/* Ye olde main program. */
|
||
|
||
extern int main PARAMS ((int, char **));
|
||
|
||
int
|
||
main (argc, argv)
|
||
int argc;
|
||
char **argv;
|
||
{
|
||
int iflag = 0;
|
||
char *p = strrchr (argv[0], '/');
|
||
char *num_end;
|
||
int option;
|
||
int i;
|
||
|
||
progname = (p != 0) ? p+1 : argv[0];
|
||
|
||
(void) signal (SIGSEGV, catch_signal);
|
||
(void) signal (SIGBUS, catch_signal);
|
||
(void) signal (SIGABRT, catch_signal);
|
||
|
||
#if !defined(__SABER__) && !defined(lint)
|
||
if (sizeof (efdr_t) > PAGE_USIZE)
|
||
fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
|
||
(int) sizeof (efdr_t),
|
||
(int) PAGE_USIZE);
|
||
|
||
if (sizeof (page_t) != PAGE_USIZE)
|
||
fatal ("page_t has a sizeof %d bytes, when it should be %d",
|
||
(int) sizeof (page_t),
|
||
(int) PAGE_USIZE);
|
||
|
||
#endif
|
||
|
||
alloc_counts[ alloc_type_none ].alloc_name = "none";
|
||
alloc_counts[ alloc_type_scope ].alloc_name = "scope";
|
||
alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
|
||
alloc_counts[ alloc_type_shash ].alloc_name = "shash";
|
||
alloc_counts[ alloc_type_thash ].alloc_name = "thash";
|
||
alloc_counts[ alloc_type_tag ].alloc_name = "tag";
|
||
alloc_counts[ alloc_type_forward ].alloc_name = "forward";
|
||
alloc_counts[ alloc_type_thead ].alloc_name = "thead";
|
||
alloc_counts[ alloc_type_varray ].alloc_name = "varray";
|
||
|
||
int_type_info = type_info_init;
|
||
int_type_info.basic_type = bt_Int;
|
||
|
||
void_type_info = type_info_init;
|
||
void_type_info.basic_type = bt_Void;
|
||
|
||
while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
|
||
switch (option)
|
||
{
|
||
default:
|
||
had_errors++;
|
||
break;
|
||
|
||
case 'd':
|
||
debug = strtol (optarg, &num_end, 0);
|
||
if ((unsigned) debug > 4 || num_end == optarg)
|
||
had_errors++;
|
||
|
||
break;
|
||
|
||
case 'I':
|
||
if (rename_output || obj_in_name != (char *) 0)
|
||
had_errors++;
|
||
else
|
||
rename_output = 1;
|
||
|
||
/* fall through to 'i' case. */
|
||
|
||
case 'i':
|
||
if (obj_in_name == (char *) 0)
|
||
{
|
||
obj_in_name = optarg;
|
||
iflag++;
|
||
}
|
||
else
|
||
had_errors++;
|
||
break;
|
||
|
||
case 'o':
|
||
if (object_name == (char *) 0)
|
||
object_name = optarg;
|
||
else
|
||
had_errors++;
|
||
break;
|
||
|
||
case 'v':
|
||
version++;
|
||
break;
|
||
}
|
||
|
||
if (obj_in_name == (char *) 0 && optind <= argc - 2)
|
||
obj_in_name = argv[--argc];
|
||
|
||
if (object_name == (char *) 0 && optind <= argc - 2)
|
||
object_name = argv[--argc];
|
||
|
||
/* If there is an output name, but no input name use
|
||
the same file for both, deleting the name between
|
||
opening it for input and opening it for output. */
|
||
if (obj_in_name == (char *) 0 && object_name != (char *) 0)
|
||
{
|
||
obj_in_name = object_name;
|
||
delete_input = 1;
|
||
}
|
||
|
||
if (object_name == (char *) 0 || had_errors || optind != argc - 1)
|
||
{
|
||
fprintf (stderr, _("Calling Sequence:\n"));
|
||
fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
|
||
fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
|
||
fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
|
||
fprintf (stderr, "\n");
|
||
fprintf (stderr, _("Debug levels are:\n"));
|
||
fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
|
||
fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
|
||
fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
|
||
fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
|
||
return 1;
|
||
}
|
||
|
||
|
||
if (version)
|
||
{
|
||
fprintf (stderr, _("mips-tfile version %s"), version_string);
|
||
#ifdef TARGET_VERSION
|
||
TARGET_VERSION;
|
||
#endif
|
||
fputc ('\n', stderr);
|
||
}
|
||
|
||
if (obj_in_name == (char *) 0)
|
||
obj_in_name = object_name;
|
||
|
||
if (rename_output && rename (object_name, obj_in_name) != 0)
|
||
{
|
||
char *buffer = (char *) allocate_multiple_pages (4);
|
||
int len;
|
||
int len2;
|
||
int in_fd;
|
||
int out_fd;
|
||
|
||
/* Rename failed, copy input file */
|
||
in_fd = open (object_name, O_RDONLY, 0666);
|
||
if (in_fd < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
||
if (out_fd < 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
|
||
{
|
||
len2 = write (out_fd, buffer, len);
|
||
if (len2 < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (len != len2)
|
||
fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
|
||
}
|
||
|
||
free_multiple_pages ((page_t *) buffer, 4);
|
||
|
||
if (len < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (close (in_fd) < 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (close (out_fd) < 0)
|
||
pfatal_with_name (obj_in_name);
|
||
}
|
||
|
||
/* Must open input before output, since the output may be the same file, and
|
||
we need to get the input handle before truncating it. */
|
||
obj_in_stream = fopen (obj_in_name, "r");
|
||
if (obj_in_stream == (FILE *) 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
if (delete_input && unlink (obj_in_name) != 0)
|
||
pfatal_with_name (obj_in_name);
|
||
|
||
object_stream = fopen (object_name, "w");
|
||
if (object_stream == (FILE *) 0)
|
||
pfatal_with_name (object_name);
|
||
|
||
if (strcmp (argv[optind], "-") != 0)
|
||
{
|
||
input_name = argv[optind];
|
||
if (freopen (argv[optind], "r", stdin) != stdin)
|
||
pfatal_with_name (argv[optind]);
|
||
}
|
||
|
||
copy_object (); /* scan & copy object file */
|
||
parse_input (); /* scan all of input */
|
||
|
||
update_headers (); /* write out tfile */
|
||
write_object ();
|
||
|
||
if (debug)
|
||
{
|
||
fprintf (stderr, "\n\tAllocation summary:\n\n");
|
||
for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
|
||
if (alloc_counts[i].total_alloc)
|
||
{
|
||
fprintf (stderr,
|
||
"\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
|
||
alloc_counts[i].alloc_name,
|
||
alloc_counts[i].total_alloc,
|
||
alloc_counts[i].total_free,
|
||
alloc_counts[i].total_pages);
|
||
}
|
||
}
|
||
|
||
return (had_errors) ? 1 : 0;
|
||
}
|
||
|
||
|
||
/* Catch a signal and exit without dumping core. */
|
||
|
||
STATIC void
|
||
catch_signal (signum)
|
||
int signum;
|
||
{
|
||
(void) signal (signum, SIG_DFL); /* just in case... */
|
||
fatal ("%s", strsignal (signum));
|
||
}
|
||
|
||
/* Print a fatal error message. NAME is the text.
|
||
Also include a system error message based on `errno'. */
|
||
|
||
void
|
||
pfatal_with_name (msg)
|
||
const char *msg;
|
||
{
|
||
int save_errno = errno; /* just in case.... */
|
||
if (line_number > 0)
|
||
fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
|
||
else
|
||
fprintf (stderr, "%s:", progname);
|
||
|
||
errno = save_errno;
|
||
if (errno == 0)
|
||
fprintf (stderr, "[errno = 0] %s\n", msg);
|
||
else
|
||
perror (msg);
|
||
|
||
exit (1);
|
||
}
|
||
|
||
|
||
/* Procedure to abort with an out of bounds error message. It has
|
||
type int, so it can be used with an ?: expression within the
|
||
ORIG_xxx macros, but the function never returns. */
|
||
|
||
static int
|
||
out_of_bounds (indx, max, str, prog_line)
|
||
symint_t indx; /* index that is out of bounds */
|
||
symint_t max; /* maximum index */
|
||
const char *str; /* string to print out */
|
||
int prog_line; /* line number within mips-tfile.c */
|
||
{
|
||
if (indx < max) /* just in case */
|
||
return 0;
|
||
|
||
fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
|
||
progname, input_name, line_number, indx, str, max, prog_line);
|
||
|
||
exit (1);
|
||
return 0; /* turn off warning messages */
|
||
}
|
||
|
||
|
||
/* Allocate a cluster of pages. USE_MALLOC says that malloc does not
|
||
like sbrk's behind its back (or sbrk isn't available). If we use
|
||
sbrk, we assume it gives us zeroed pages. */
|
||
|
||
#ifndef MALLOC_CHECK
|
||
#ifdef USE_MALLOC
|
||
|
||
STATIC page_t *
|
||
allocate_cluster (npages)
|
||
Size_t npages;
|
||
{
|
||
page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
|
||
|
||
if (debug > 3)
|
||
fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
|
||
|
||
return value;
|
||
}
|
||
|
||
#else /* USE_MALLOC */
|
||
|
||
STATIC page_t *
|
||
allocate_cluster (npages)
|
||
Size_t npages;
|
||
{
|
||
page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
|
||
unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
|
||
|
||
if (offset != 0) /* align to a page boundary */
|
||
{
|
||
if (sbrk (PAGE_USIZE - offset) == (char *)-1)
|
||
pfatal_with_name ("allocate_cluster");
|
||
|
||
ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
|
||
}
|
||
|
||
if (sbrk (npages * PAGE_USIZE) == (char *) -1)
|
||
pfatal_with_name ("allocate_cluster");
|
||
|
||
if (debug > 3)
|
||
{
|
||
fprintf (stderr, "\talloc\tnpages = %lu, value = ",
|
||
(unsigned long) npages);
|
||
fprintf (stderr, HOST_PTR_PRINTF, (PTR) ptr);
|
||
fputs ("\n", stderr);
|
||
}
|
||
|
||
return ptr;
|
||
}
|
||
|
||
#endif /* USE_MALLOC */
|
||
|
||
|
||
static page_t *cluster_ptr = NULL;
|
||
static unsigned pages_left = 0;
|
||
|
||
#endif /* MALLOC_CHECK */
|
||
|
||
|
||
/* Allocate some pages (which is initialized to 0). */
|
||
|
||
STATIC page_t *
|
||
allocate_multiple_pages (npages)
|
||
Size_t npages;
|
||
{
|
||
#ifndef MALLOC_CHECK
|
||
if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
|
||
{
|
||
pages_left = MAX_CLUSTER_PAGES;
|
||
cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
|
||
}
|
||
|
||
if (npages <= pages_left)
|
||
{
|
||
page_t *ptr = cluster_ptr;
|
||
cluster_ptr += npages;
|
||
pages_left -= npages;
|
||
return ptr;
|
||
}
|
||
|
||
return allocate_cluster (npages);
|
||
|
||
#else /* MALLOC_CHECK */
|
||
return (page_t *) xcalloc (npages, PAGE_SIZE);
|
||
|
||
#endif /* MALLOC_CHECK */
|
||
}
|
||
|
||
|
||
/* Release some pages. */
|
||
|
||
STATIC void
|
||
free_multiple_pages (page_ptr, npages)
|
||
page_t *page_ptr;
|
||
Size_t npages;
|
||
{
|
||
#ifndef MALLOC_CHECK
|
||
if (pages_left == 0)
|
||
{
|
||
cluster_ptr = page_ptr;
|
||
pages_left = npages;
|
||
}
|
||
|
||
else if ((page_ptr + npages) == cluster_ptr)
|
||
{
|
||
cluster_ptr -= npages;
|
||
pages_left += npages;
|
||
}
|
||
|
||
/* otherwise the page is not freed. If more than call is
|
||
done, we probably should worry about it, but at present,
|
||
the free pages is done right after an allocate. */
|
||
|
||
#else /* MALLOC_CHECK */
|
||
free ((char *) page_ptr);
|
||
|
||
#endif /* MALLOC_CHECK */
|
||
}
|
||
|
||
|
||
/* Allocate one page (which is initialized to 0). */
|
||
|
||
STATIC page_t *
|
||
allocate_page ()
|
||
{
|
||
#ifndef MALLOC_CHECK
|
||
if (pages_left == 0)
|
||
{
|
||
pages_left = MAX_CLUSTER_PAGES;
|
||
cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
|
||
}
|
||
|
||
pages_left--;
|
||
return cluster_ptr++;
|
||
|
||
#else /* MALLOC_CHECK */
|
||
return (page_t *) xcalloc (1, PAGE_SIZE);
|
||
|
||
#endif /* MALLOC_CHECK */
|
||
}
|
||
|
||
|
||
/* Allocate scoping information. */
|
||
|
||
STATIC scope_t *
|
||
allocate_scope ()
|
||
{
|
||
scope_t *ptr;
|
||
static scope_t initial_scope;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
|
||
if (ptr != (scope_t *) 0)
|
||
alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
|
||
|
||
else
|
||
{
|
||
int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (scope_t);
|
||
alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_scope ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->scope[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
|
||
}
|
||
|
||
#else
|
||
ptr = (scope_t *) xmalloc (sizeof (scope_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_scope ].total_alloc++;
|
||
*ptr = initial_scope;
|
||
return ptr;
|
||
}
|
||
|
||
/* Free scoping information. */
|
||
|
||
STATIC void
|
||
free_scope (ptr)
|
||
scope_t *ptr;
|
||
{
|
||
alloc_counts[ (int) alloc_type_scope ].total_free++;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
|
||
alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
|
||
|
||
#else
|
||
free ((PTR) ptr);
|
||
#endif
|
||
|
||
}
|
||
|
||
|
||
/* Allocate links for pages in a virtual array. */
|
||
|
||
STATIC vlinks_t *
|
||
allocate_vlinks ()
|
||
{
|
||
vlinks_t *ptr;
|
||
static vlinks_t initial_vlinks;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (vlinks_t);
|
||
alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->vlinks[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
|
||
|
||
#else
|
||
ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
|
||
*ptr = initial_vlinks;
|
||
return ptr;
|
||
}
|
||
|
||
|
||
/* Allocate string hash buckets. */
|
||
|
||
STATIC shash_t *
|
||
allocate_shash ()
|
||
{
|
||
shash_t *ptr;
|
||
static shash_t initial_shash;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (shash_t);
|
||
alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_shash ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->shash[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
|
||
|
||
#else
|
||
ptr = (shash_t *) xmalloc (sizeof (shash_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_shash ].total_alloc++;
|
||
*ptr = initial_shash;
|
||
return ptr;
|
||
}
|
||
|
||
|
||
/* Allocate type hash buckets. */
|
||
|
||
STATIC thash_t *
|
||
allocate_thash ()
|
||
{
|
||
thash_t *ptr;
|
||
static thash_t initial_thash;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (thash_t);
|
||
alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_thash ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->thash[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
|
||
|
||
#else
|
||
ptr = (thash_t *) xmalloc (sizeof (thash_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_thash ].total_alloc++;
|
||
*ptr = initial_thash;
|
||
return ptr;
|
||
}
|
||
|
||
|
||
/* Allocate structure, union, or enum tag information. */
|
||
|
||
STATIC tag_t *
|
||
allocate_tag ()
|
||
{
|
||
tag_t *ptr;
|
||
static tag_t initial_tag;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
|
||
if (ptr != (tag_t *) 0)
|
||
alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
|
||
|
||
else
|
||
{
|
||
int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (tag_t);
|
||
alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_tag ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->tag[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
|
||
}
|
||
|
||
#else
|
||
ptr = (tag_t *) xmalloc (sizeof (tag_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_tag ].total_alloc++;
|
||
*ptr = initial_tag;
|
||
return ptr;
|
||
}
|
||
|
||
/* Free scoping information. */
|
||
|
||
STATIC void
|
||
free_tag (ptr)
|
||
tag_t *ptr;
|
||
{
|
||
alloc_counts[ (int) alloc_type_tag ].total_free++;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
|
||
alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
|
||
|
||
#else
|
||
free ((PTR) ptr);
|
||
#endif
|
||
|
||
}
|
||
|
||
|
||
/* Allocate forward reference to a yet unknown tag. */
|
||
|
||
STATIC forward_t *
|
||
allocate_forward ()
|
||
{
|
||
forward_t *ptr;
|
||
static forward_t initial_forward;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
|
||
if (ptr != (forward_t *) 0)
|
||
alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
|
||
|
||
else
|
||
{
|
||
int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (forward_t);
|
||
alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_forward ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->forward[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
|
||
}
|
||
|
||
#else
|
||
ptr = (forward_t *) xmalloc (sizeof (forward_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_forward ].total_alloc++;
|
||
*ptr = initial_forward;
|
||
return ptr;
|
||
}
|
||
|
||
/* Free scoping information. */
|
||
|
||
STATIC void
|
||
free_forward (ptr)
|
||
forward_t *ptr;
|
||
{
|
||
alloc_counts[ (int) alloc_type_forward ].total_free++;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
|
||
alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
|
||
|
||
#else
|
||
free ((PTR) ptr);
|
||
#endif
|
||
|
||
}
|
||
|
||
|
||
/* Allocate head of type hash list. */
|
||
|
||
STATIC thead_t *
|
||
allocate_thead ()
|
||
{
|
||
thead_t *ptr;
|
||
static thead_t initial_thead;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
|
||
if (ptr != (thead_t *) 0)
|
||
alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
|
||
|
||
else
|
||
{
|
||
int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
|
||
page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
|
||
|
||
if (unallocated == 0)
|
||
{
|
||
unallocated = PAGE_SIZE / sizeof (thead_t);
|
||
alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
|
||
alloc_counts[ (int) alloc_type_thead ].total_pages++;
|
||
}
|
||
|
||
ptr = &cur_page->thead[ --unallocated ];
|
||
alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
|
||
}
|
||
|
||
#else
|
||
ptr = (thead_t *) xmalloc (sizeof (thead_t));
|
||
|
||
#endif
|
||
|
||
alloc_counts[ (int) alloc_type_thead ].total_alloc++;
|
||
*ptr = initial_thead;
|
||
return ptr;
|
||
}
|
||
|
||
/* Free scoping information. */
|
||
|
||
STATIC void
|
||
free_thead (ptr)
|
||
thead_t *ptr;
|
||
{
|
||
alloc_counts[ (int) alloc_type_thead ].total_free++;
|
||
|
||
#ifndef MALLOC_CHECK
|
||
ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
|
||
alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
|
||
|
||
#else
|
||
free ((PTR) ptr);
|
||
#endif
|
||
|
||
}
|
||
|
||
#endif /* MIPS_DEBUGGING_INFO */
|
||
|
||
|
||
/* Output an error message and exit */
|
||
|
||
/*VARARGS*/
|
||
void
|
||
fatal VPARAMS ((const char *format, ...))
|
||
{
|
||
VA_OPEN (ap, format);
|
||
VA_FIXEDARG (ap, const char *, format);
|
||
|
||
if (line_number > 0)
|
||
fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
|
||
else
|
||
fprintf (stderr, "%s:", progname);
|
||
|
||
vfprintf (stderr, format, ap);
|
||
VA_CLOSE (ap);
|
||
fprintf (stderr, "\n");
|
||
if (line_number > 0)
|
||
fprintf (stderr, "line:\t%s\n", cur_line_start);
|
||
|
||
saber_stop ();
|
||
exit (1);
|
||
}
|
||
|
||
/*VARARGS*/
|
||
void
|
||
error VPARAMS ((const char *format, ...))
|
||
{
|
||
VA_OPEN (ap, format);
|
||
VA_FIXEDARG (ap, char *, format);
|
||
|
||
if (line_number > 0)
|
||
fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
|
||
else
|
||
fprintf (stderr, "%s:", progname);
|
||
|
||
vfprintf (stderr, format, ap);
|
||
fprintf (stderr, "\n");
|
||
if (line_number > 0)
|
||
fprintf (stderr, "line:\t%s\n", cur_line_start);
|
||
|
||
had_errors++;
|
||
VA_CLOSE (ap);
|
||
|
||
saber_stop ();
|
||
}
|
||
|
||
/* More 'friendly' abort that prints the line and file.
|
||
config.h can #define abort fancy_abort if you like that sort of thing. */
|
||
|
||
void
|
||
fancy_abort ()
|
||
{
|
||
fatal ("internal abort");
|
||
}
|
||
|
||
|
||
/* When `malloc.c' is compiled with `rcheck' defined,
|
||
it calls this function to report clobberage. */
|
||
|
||
void
|
||
botch (s)
|
||
const char *s;
|
||
{
|
||
fatal ("%s", s);
|
||
}
|