c2b2b84657
handling of errors through the standard err() and warn() more fixes for Geoff Rehmet's NULL pointer bug. fixes NULL pointer bugs when linking mono and nested X servers. supports a `-nostdlib' option. accept object files without a symbol table don't attempt dynamic linking when `-A' is given a few variable names have chaged (desc -> fd), and the formatting has changed which should make it much easier to track his sources. I tested 'make world' for /usr/src and X twice with these changes.
689 lines
24 KiB
C
689 lines
24 KiB
C
/*
|
||
* $Id: ld.h,v 1.10 1994/02/13 20:41:34 jkh Exp $
|
||
*/
|
||
/*-
|
||
* This code is derived from software copyrighted by the Free Software
|
||
* Foundation.
|
||
*
|
||
* Modified 1991 by Donn Seeley at UUNET Technologies, Inc.
|
||
*/
|
||
|
||
#define SUN_COMPAT
|
||
|
||
#ifndef N_SIZE
|
||
#define N_SIZE 0xc
|
||
#endif
|
||
|
||
#ifndef min
|
||
#define min(a,b) ((a) < (b) ? (a) : (b))
|
||
#endif
|
||
|
||
#ifndef __P
|
||
#ifndef __STDC__
|
||
#define __P(a) ()
|
||
#else
|
||
#define __P(a) a
|
||
#endif
|
||
#endif
|
||
|
||
/* If compiled with GNU C, use the built-in alloca */
|
||
#if defined(__GNUC__) || defined(sparc)
|
||
#define alloca __builtin_alloca
|
||
#endif
|
||
|
||
#ifdef __FreeBSD__
|
||
#define FreeBSD
|
||
#endif
|
||
|
||
#include "md.h"
|
||
#include "link.h"
|
||
|
||
/* Macro to control the number of undefined references printed */
|
||
#define MAX_UREFS_PRINTED 10
|
||
|
||
/* Align to power-of-two boundary */
|
||
#define PALIGN(x,p) (((x) + (u_long)(p) - 1) & (-(u_long)(p)))
|
||
|
||
/* Align to machine dependent boundary */
|
||
#define MALIGN(x) PALIGN(x,MAX_ALIGNMENT)
|
||
|
||
/* Define this to specify the default executable format. */
|
||
#ifndef DEFAULT_MAGIC
|
||
#ifdef FreeBSD
|
||
#define DEFAULT_MAGIC QMAGIC
|
||
extern int netzmagic;
|
||
#else
|
||
#define DEFAULT_MAGIC ZMAGIC
|
||
#endif
|
||
#endif
|
||
|
||
|
||
/*
|
||
* Ok. Following are the relocation information macros. If your
|
||
* system should not be able to use the default set (below), you must
|
||
* define the following:
|
||
|
||
* relocation_info: This must be typedef'd (or #define'd) to the type
|
||
* of structure that is stored in the relocation info section of your
|
||
* a.out files. Often this is defined in the a.out.h for your system.
|
||
*
|
||
* RELOC_ADDRESS (rval): Offset into the current section of the
|
||
* <whatever> to be relocated. *Must be an lvalue*.
|
||
*
|
||
* RELOC_EXTERN_P (rval): Is this relocation entry based on an
|
||
* external symbol (1), or was it fully resolved upon entering the
|
||
* loader (0) in which case some combination of the value in memory
|
||
* (if RELOC_MEMORY_ADD_P) and the extra (if RELOC_ADD_EXTRA) contains
|
||
* what the value of the relocation actually was. *Must be an lvalue*.
|
||
*
|
||
* RELOC_TYPE (rval): If this entry was fully resolved upon
|
||
* entering the loader, what type should it be relocated as?
|
||
*
|
||
* RELOC_SYMBOL (rval): If this entry was not fully resolved upon
|
||
* entering the loader, what is the index of it's symbol in the symbol
|
||
* table? *Must be a lvalue*.
|
||
*
|
||
* RELOC_MEMORY_ADD_P (rval): This should return true if the final
|
||
* relocation value output here should be added to memory, or if the
|
||
* section of memory described should simply be set to the relocation
|
||
* value.
|
||
*
|
||
* RELOC_ADD_EXTRA (rval): (Optional) This macro, if defined, gives
|
||
* an extra value to be added to the relocation value based on the
|
||
* individual relocation entry. *Must be an lvalue if defined*.
|
||
*
|
||
* RELOC_PCREL_P (rval): True if the relocation value described is
|
||
* pc relative.
|
||
*
|
||
* RELOC_VALUE_RIGHTSHIFT (rval): Number of bits right to shift the
|
||
* final relocation value before putting it where it belongs.
|
||
*
|
||
* RELOC_TARGET_SIZE (rval): log to the base 2 of the number of
|
||
* bytes of size this relocation entry describes; 1 byte == 0; 2 bytes
|
||
* == 1; 4 bytes == 2, and etc. This is somewhat redundant (we could
|
||
* do everything in terms of the bit operators below), but having this
|
||
* macro could end up producing better code on machines without fancy
|
||
* bit twiddling. Also, it's easier to understand/code big/little
|
||
* endian distinctions with this macro.
|
||
*
|
||
* RELOC_TARGET_BITPOS (rval): The starting bit position within the
|
||
* object described in RELOC_TARGET_SIZE in which the relocation value
|
||
* will go.
|
||
*
|
||
* RELOC_TARGET_BITSIZE (rval): How many bits are to be replaced
|
||
* with the bits of the relocation value. It may be assumed by the
|
||
* code that the relocation value will fit into this many bits. This
|
||
* may be larger than RELOC_TARGET_SIZE if such be useful.
|
||
*
|
||
*
|
||
* Things I haven't implemented
|
||
* ----------------------------
|
||
*
|
||
* Values for RELOC_TARGET_SIZE other than 0, 1, or 2.
|
||
*
|
||
* Pc relative relocation for External references.
|
||
*
|
||
*
|
||
*/
|
||
|
||
|
||
/* Default macros */
|
||
#ifndef RELOC_ADDRESS
|
||
|
||
#define RELOC_ADDRESS(r) ((r)->r_address)
|
||
#define RELOC_EXTERN_P(r) ((r)->r_extern)
|
||
#define RELOC_TYPE(r) ((r)->r_symbolnum)
|
||
#define RELOC_SYMBOL(r) ((r)->r_symbolnum)
|
||
#define RELOC_MEMORY_SUB_P(r) 0
|
||
#define RELOC_MEMORY_ADD_P(r) 1
|
||
#undef RELOC_ADD_EXTRA
|
||
#define RELOC_PCREL_P(r) ((r)->r_pcrel)
|
||
#define RELOC_VALUE_RIGHTSHIFT(r) 0
|
||
#if defined(RTLD) && defined(SUN_COMPAT)
|
||
#define RELOC_TARGET_SIZE(r) (2) /* !!!!! Sun BUG compatible */
|
||
#else
|
||
#define RELOC_TARGET_SIZE(r) ((r)->r_length)
|
||
#endif
|
||
#define RELOC_TARGET_BITPOS(r) 0
|
||
#define RELOC_TARGET_BITSIZE(r) 32
|
||
|
||
#define RELOC_JMPTAB_P(r) ((r)->r_jmptable)
|
||
#define RELOC_BASEREL_P(r) ((r)->r_baserel)
|
||
#define RELOC_RELATIVE_P(r) ((r)->r_relative)
|
||
#define RELOC_COPY_P(r) ((r)->r_copy)
|
||
#define RELOC_LAZY_P(r) ((r)->r_jmptable)
|
||
|
||
#define CHECK_GOT_RELOC(r) ((r)->r_pcrel)
|
||
|
||
#endif
|
||
|
||
/*
|
||
* Internal representation of relocation types
|
||
*/
|
||
#define RELTYPE_EXTERN 1
|
||
#define RELTYPE_JMPSLOT 2
|
||
#define RELTYPE_BASEREL 4
|
||
#define RELTYPE_RELATIVE 8
|
||
#define RELTYPE_COPY 16
|
||
|
||
#ifdef nounderscore
|
||
#define LPREFIX '.'
|
||
#else
|
||
#define LPREFIX 'L'
|
||
#endif
|
||
|
||
#ifndef TEXT_START
|
||
#define TEXT_START(x) N_TXTADDR(x)
|
||
#endif
|
||
|
||
#ifndef DATA_START
|
||
#define DATA_START(x) N_DATADDR(x)
|
||
#endif
|
||
|
||
/* If a this type of symbol is encountered, its name is a warning
|
||
message to print each time the symbol referenced by the next symbol
|
||
table entry is referenced.
|
||
|
||
This feature may be used to allow backwards compatibility with
|
||
certain functions (eg. gets) but to discourage programmers from
|
||
their use.
|
||
|
||
So if, for example, you wanted to have ld print a warning whenever
|
||
the function "gets" was used in their C program, you would add the
|
||
following to the assembler file in which gets is defined:
|
||
|
||
.stabs "Obsolete function \"gets\" referenced",30,0,0,0
|
||
.stabs "_gets",1,0,0,0
|
||
|
||
These .stabs do not necessarily have to be in the same file as the
|
||
gets function, they simply must exist somewhere in the compilation. */
|
||
|
||
#ifndef N_WARNING
|
||
#define N_WARNING 0x1E /* Warning message to print if symbol
|
||
included */
|
||
#endif /* This is input to ld */
|
||
|
||
/* Special global symbol types understood by GNU LD. */
|
||
|
||
/* The following type indicates the definition of a symbol as being
|
||
an indirect reference to another symbol. The other symbol
|
||
appears as an undefined reference, immediately following this symbol.
|
||
|
||
Indirection is asymmetrical. The other symbol's value will be used
|
||
to satisfy requests for the indirect symbol, but not vice versa.
|
||
If the other symbol does not have a definition, libraries will
|
||
be searched to find a definition.
|
||
|
||
So, for example, the following two lines placed in an assembler
|
||
input file would result in an object file which would direct gnu ld
|
||
to resolve all references to symbol "foo" as references to symbol
|
||
"bar".
|
||
|
||
.stabs "_foo",11,0,0,0
|
||
.stabs "_bar",1,0,0,0
|
||
|
||
Note that (11 == (N_INDR | N_EXT)) and (1 == (N_UNDF | N_EXT)). */
|
||
|
||
#ifndef N_INDR
|
||
#define N_INDR 0xa
|
||
#endif
|
||
|
||
/* The following symbols refer to set elements. These are expected
|
||
only in input to the loader; they should not appear in loader
|
||
output (unless relocatable output is requested). To be recognized
|
||
by the loader, the input symbols must have their N_EXT bit set.
|
||
All the N_SET[ATDB] symbols with the same name form one set. The
|
||
loader collects all of these elements at load time and outputs a
|
||
vector for each name.
|
||
Space (an array of 32 bit words) is allocated for the set in the
|
||
data section, and the n_value field of each set element value is
|
||
stored into one word of the array.
|
||
The first word of the array is the length of the set (number of
|
||
elements). The last word of the vector is set to zero for possible
|
||
use by incremental loaders. The array is ordered by the linkage
|
||
order; the first symbols which the linker encounters will be first
|
||
in the array.
|
||
|
||
In C syntax this looks like:
|
||
|
||
struct set_vector {
|
||
unsigned int length;
|
||
unsigned int vector[length];
|
||
unsigned int always_zero;
|
||
};
|
||
|
||
Before being placed into the array, each element is relocated
|
||
according to its type. This allows the loader to create an array
|
||
of pointers to objects automatically. N_SETA type symbols will not
|
||
be relocated.
|
||
|
||
The address of the set is made into an N_SETV symbol
|
||
whose name is the same as the name of the set.
|
||
This symbol acts like a N_DATA global symbol
|
||
in that it can satisfy undefined external references.
|
||
|
||
For the purposes of determining whether or not to load in a library
|
||
file, set element definitions are not considered "real
|
||
definitions"; they will not cause the loading of a library
|
||
member.
|
||
|
||
If relocatable output is requested, none of this processing is
|
||
done. The symbols are simply relocated and passed through to the
|
||
output file.
|
||
|
||
So, for example, the following three lines of assembler code
|
||
(whether in one file or scattered between several different ones)
|
||
will produce a three element vector (total length is five words;
|
||
see above), referenced by the symbol "_xyzzy", which will have the
|
||
addresses of the routines _init1, _init2, and _init3.
|
||
|
||
*NOTE*: If symbolic addresses are used in the n_value field of the
|
||
defining .stabs, those symbols must be defined in the same file as
|
||
that containing the .stabs.
|
||
|
||
.stabs "_xyzzy",23,0,0,_init1
|
||
.stabs "_xyzzy",23,0,0,_init2
|
||
.stabs "_xyzzy",23,0,0,_init3
|
||
|
||
Note that (23 == (N_SETT | N_EXT)). */
|
||
|
||
#ifndef N_SETA
|
||
#define N_SETA 0x14 /* Absolute set element symbol */
|
||
#endif /* This is input to LD, in a .o file. */
|
||
|
||
#ifndef N_SETT
|
||
#define N_SETT 0x16 /* Text set element symbol */
|
||
#endif /* This is input to LD, in a .o file. */
|
||
|
||
#ifndef N_SETD
|
||
#define N_SETD 0x18 /* Data set element symbol */
|
||
#endif /* This is input to LD, in a .o file. */
|
||
|
||
#ifndef N_SETB
|
||
#define N_SETB 0x1A /* Bss set element symbol */
|
||
#endif /* This is input to LD, in a .o file. */
|
||
|
||
/* Macros dealing with the set element symbols defined in a.out.h */
|
||
#define SET_ELEMENT_P(x) ((x) >= N_SETA && (x) <= (N_SETB|N_EXT))
|
||
#define TYPE_OF_SET_ELEMENT(x) ((x) - N_SETA + N_ABS)
|
||
|
||
#ifndef N_SETV
|
||
#define N_SETV 0x1C /* Pointer to set vector in data area. */
|
||
#endif /* This is output from LD. */
|
||
|
||
|
||
#ifndef __GNU_STAB__
|
||
|
||
/* Line number for the data section. This is to be used to describe
|
||
the source location of a variable declaration. */
|
||
#ifndef N_DSLINE
|
||
#define N_DSLINE (N_SLINE+N_DATA-N_TEXT)
|
||
#endif
|
||
|
||
/* Line number for the bss section. This is to be used to describe
|
||
the source location of a variable declaration. */
|
||
#ifndef N_BSLINE
|
||
#define N_BSLINE (N_SLINE+N_BSS-N_TEXT)
|
||
#endif
|
||
|
||
#endif /* not __GNU_STAB__ */
|
||
|
||
|
||
typedef struct localsymbol {
|
||
struct nzlist nzlist; /* n[z]list from file */
|
||
struct glosym *symbol; /* Corresponding global symbol,
|
||
if any */
|
||
struct localsymbol *next; /* List of definitions */
|
||
struct file_entry *entry; /* Backpointer to file */
|
||
long gotslot_offset; /* Position in GOT, if any */
|
||
int symbolnum; /* Position in output nlist */
|
||
int flags;
|
||
#define LS_L_SYMBOL 1 /* Local symbol starts with an `L' */
|
||
#define LS_WRITE 2 /* Symbol goes in output symtable */
|
||
#define LS_RENAME 4 /* xlat name to `<file>.<name>' */
|
||
#define LS_GOTSLOTCLAIMED 8 /* This symbol has a GOT entry */
|
||
} localsymbol_t;
|
||
|
||
/* Symbol table */
|
||
|
||
/*
|
||
* Global symbol data is recorded in these structures, one for each global
|
||
* symbol. They are found via hashing in 'symtab', which points to a vector
|
||
* of buckets. Each bucket is a chain of these structures through the link
|
||
* field.
|
||
*/
|
||
|
||
typedef struct glosym {
|
||
struct glosym *link; /* Next symbol hash bucket. */
|
||
char *name; /* Name of this symbol. */
|
||
long value; /* Value of this symbol */
|
||
localsymbol_t *refs; /* Chain of local symbols from object
|
||
files pertaining to this global
|
||
symbol */
|
||
localsymbol_t *sorefs;/* Same for local symbols from shared
|
||
object files. */
|
||
|
||
char *warning; /* message, from N_WARNING nlists */
|
||
int common_size; /* Common size */
|
||
int symbolnum; /* Symbol index in output symbol table */
|
||
int rrs_symbolnum; /* Symbol index in RRS symbol table */
|
||
|
||
struct nlist *def_nlist; /* The local symbol that gave this
|
||
global symbol its definition */
|
||
|
||
char defined; /* Definition of this symbol */
|
||
char so_defined; /* Definition of this symbol in a shared
|
||
object. These go into the RRS symbol table */
|
||
u_char undef_refs; /* Count of number of "undefined"
|
||
messages printed for this symbol */
|
||
u_char mult_defs; /* Same for "multiply defined" symbols */
|
||
struct glosym *alias; /* For symbols of type N_INDR, this
|
||
points at the real symbol. */
|
||
int setv_count; /* Number of elements in N_SETV symbols */
|
||
int size; /* Size of this symbol (either from N_SIZE
|
||
symbols or a from shared object's RRS */
|
||
int aux; /* Auxiliary type information conveyed in
|
||
the `n_other' field of nlists */
|
||
|
||
/* The offset into one of the RRS tables, -1 if not used */
|
||
long jmpslot_offset;
|
||
long gotslot_offset;
|
||
|
||
long flags;
|
||
|
||
#define GS_DEFINED 1 /* Symbol has definition (notyetused)*/
|
||
#define GS_REFERENCED 2 /* Symbol is referred to by something
|
||
interesting */
|
||
#define GS_TRACE 4 /* Symbol will be traced */
|
||
#define GS_JMPSLOTCLAIMED 8 /* */
|
||
#define GS_GOTSLOTCLAIMED 0x10 /* Some state bits concerning */
|
||
#define GS_CPYRELOCRESERVED 0x20 /* entries in GOT and PLT tables */
|
||
#define GS_CPYRELOCCLAIMED 0x40 /* */
|
||
|
||
} symbol;
|
||
|
||
/* Number of buckets in symbol hash table */
|
||
#define SYMTABSIZE 1009
|
||
|
||
/* The symbol hash table: a vector of SYMTABSIZE pointers to struct glosym. */
|
||
extern symbol *symtab[];
|
||
#define FOR_EACH_SYMBOL(i,sp) { \
|
||
int i; \
|
||
for (i = 0; i < SYMTABSIZE; i++) { \
|
||
register symbol *sp; \
|
||
for (sp = symtab[i]; sp; sp = sp->link)
|
||
|
||
#define END_EACH_SYMBOL }}
|
||
|
||
/* # of global symbols referenced and not defined. */
|
||
extern int undefined_global_sym_count;
|
||
|
||
/* # of undefined symbols referenced by shared objects */
|
||
extern int undefined_shobj_sym_count;
|
||
|
||
/* # of multiply defined symbols. */
|
||
extern int multiple_def_count;
|
||
|
||
/* # of common symbols. */
|
||
extern int common_defined_global_count;
|
||
|
||
/* # of warning symbols encountered. */
|
||
extern int warning_count;
|
||
|
||
/*
|
||
* Define a linked list of strings which define symbols which should be
|
||
* treated as set elements even though they aren't. Any symbol with a prefix
|
||
* matching one of these should be treated as a set element.
|
||
*
|
||
* This is to make up for deficiencies in many assemblers which aren't willing
|
||
* to pass any stabs through to the loader which they don't understand.
|
||
*/
|
||
struct string_list_element {
|
||
char *str;
|
||
struct string_list_element *next;
|
||
};
|
||
|
||
extern symbol *entry_symbol; /* the entry symbol, if any */
|
||
extern symbol *edata_symbol; /* the symbol _edata */
|
||
extern symbol *etext_symbol; /* the symbol _etext */
|
||
extern symbol *end_symbol; /* the symbol _end */
|
||
extern symbol *got_symbol; /* the symbol __GLOBAL_OFFSET_TABLE_ */
|
||
extern symbol *dynamic_symbol; /* the symbol __DYNAMIC */
|
||
|
||
/*
|
||
* Each input file, and each library member ("subfile") being loaded, has a
|
||
* `file_entry' structure for it.
|
||
*
|
||
* For files specified by command args, these are contained in the vector which
|
||
* `file_table' points to.
|
||
*
|
||
* For library members, they are dynamically allocated, and chained through the
|
||
* `chain' field. The chain is found in the `subfiles' field of the
|
||
* `file_entry'. The `file_entry' objects for the members have `superfile'
|
||
* fields pointing to the one for the library.
|
||
*/
|
||
|
||
struct file_entry {
|
||
char *filename; /* Name of this file. */
|
||
/*
|
||
* Name to use for the symbol giving address of text start Usually
|
||
* the same as filename, but for a file spec'd with -l this is the -l
|
||
* switch itself rather than the filename.
|
||
*/
|
||
char *local_sym_name;
|
||
struct exec header; /* The file's a.out header. */
|
||
localsymbol_t *symbols; /* Symbol table of the file. */
|
||
int nsymbols; /* Number of symbols in above array. */
|
||
int string_size; /* Size in bytes of string table. */
|
||
char *strings; /* Pointer to the string table when
|
||
in core, NULL otherwise */
|
||
int strings_offset; /* Offset of string table,
|
||
(normally N_STROFF() + 4) */
|
||
/*
|
||
* Next two used only if `relocatable_output' or if needed for
|
||
* output of undefined reference line numbers.
|
||
*/
|
||
struct relocation_info *textrel; /* Text relocations */
|
||
int ntextrel; /* # of text relocations */
|
||
struct relocation_info *datarel; /* Data relocations */
|
||
int ndatarel; /* # of data relocations */
|
||
|
||
/*
|
||
* Relation of this file's segments to the output file.
|
||
*/
|
||
int text_start_address; /* Start of this file's text segment
|
||
in the output file core image. */
|
||
int data_start_address; /* Start of this file's data segment
|
||
in the output file core image. */
|
||
int bss_start_address; /* Start of this file's bss segment
|
||
in the output file core image. */
|
||
struct file_entry *subfiles; /* For a library, points to chain of
|
||
entries for the library members. */
|
||
struct file_entry *superfile; /* For library member, points to the
|
||
library's own entry. */
|
||
struct file_entry *chain; /* For library member, points to next
|
||
entry for next member. */
|
||
int starting_offset; /* For a library member, offset of the
|
||
member within the archive. Zero for
|
||
files that are not library members.*/
|
||
int total_size; /* Size of contents of this file,
|
||
if library member. */
|
||
#ifdef SUN_COMPAT
|
||
struct file_entry *silly_archive;/* For shared libraries which have
|
||
a .sa companion */
|
||
#endif
|
||
int lib_major, lib_minor; /* Version numbers of a shared object */
|
||
|
||
int flags;
|
||
#define E_IS_LIBRARY 1 /* File is a an archive */
|
||
#define E_HEADER_VALID 2 /* File's header has been read */
|
||
#define E_SEARCH_DIRS 4 /* Search directories for file */
|
||
#define E_SEARCH_DYNAMIC 8 /* Search for shared libs allowed */
|
||
#define E_JUST_SYMS 0x10 /* File is used for incremental load */
|
||
#define E_DYNAMIC 0x20 /* File is a shared object */
|
||
#define E_SCRAPPED 0x40 /* Ignore this file */
|
||
#define E_SYMBOLS_USED 0x80 /* Symbols from this entry were used */
|
||
};
|
||
|
||
/*
|
||
* Section start addresses.
|
||
*/
|
||
extern int text_size; /* total size of text. */
|
||
extern int text_start; /* start of text */
|
||
extern int text_pad; /* clear space between text and data */
|
||
extern int data_size; /* total size of data. */
|
||
extern int data_start; /* start of data */
|
||
extern int data_pad; /* part of bss segment within data */
|
||
|
||
extern int bss_size; /* total size of bss. */
|
||
extern int bss_start; /* start of bss */
|
||
|
||
extern int text_reloc_size; /* total size of text relocation. */
|
||
extern int data_reloc_size; /* total size of data relocation. */
|
||
|
||
/*
|
||
* Runtime Relocation Section (RRS).
|
||
* This describes the data structures that go into the output text and data
|
||
* segments to support the run-time linker. The RRS can be empty (plain old
|
||
* static linking), or can just exist of GOT and PLT entries (in case of
|
||
* statically linked PIC code).
|
||
*/
|
||
extern int rrs_section_type; /* What's in the RRS section */
|
||
#define RRS_NONE 0
|
||
#define RRS_PARTIAL 1
|
||
#define RRS_FULL 2
|
||
extern int rrs_text_size; /* Size of RRS text additions */
|
||
extern int rrs_text_start; /* Location of above */
|
||
extern int rrs_data_size; /* Size of RRS data additions */
|
||
extern int rrs_data_start; /* Location of above */
|
||
|
||
/* Version number to put in __DYNAMIC (set by -V) */
|
||
extern int soversion;
|
||
#ifndef DEFAULT_SOVERSION
|
||
#define DEFAULT_SOVERSION LD_VERSION_BSD
|
||
#endif
|
||
|
||
extern int pc_relocation; /* Current PC reloc value */
|
||
|
||
extern int number_of_shobjs; /* # of shared objects linked in */
|
||
|
||
/* Current link mode */
|
||
extern int link_mode;
|
||
#define DYNAMIC 1 /* Consider shared libraries */
|
||
#define SYMBOLIC 2 /* Force symbolic resolution */
|
||
#define FORCEARCHIVE 4 /* Force inclusion of all members
|
||
of archives */
|
||
#define SHAREABLE 8 /* Build a shared object */
|
||
#define SILLYARCHIVE 16 /* Process .sa companions, if any */
|
||
|
||
extern int outdesc; /* Output file descriptor. */
|
||
extern struct exec outheader; /* Output file header. */
|
||
extern int magic; /* Output file magic. */
|
||
extern int oldmagic;
|
||
extern int relocatable_output;
|
||
|
||
/* Size of a page. */
|
||
extern int page_size;
|
||
|
||
extern char **search_dirs; /* Directories to search for libraries. */
|
||
extern int n_search_dirs; /* Length of above. */
|
||
|
||
extern int write_map; /* write a load map (`-M') */
|
||
|
||
void read_header __P((int, struct file_entry *));
|
||
void read_entry_symbols __P((int, struct file_entry *));
|
||
void read_entry_strings __P((int, struct file_entry *));
|
||
void read_entry_relocation __P((int, struct file_entry *));
|
||
void enter_file_symbols __P((struct file_entry *));
|
||
void read_file_symbols __P((struct file_entry *));
|
||
int set_element_prefixed_p __P((char *));
|
||
int text_offset __P((struct file_entry *));
|
||
int file_open __P((struct file_entry *));
|
||
void each_file __P((void (*)(), void *));
|
||
void each_full_file __P((void (*)(), void *));
|
||
unsigned long check_each_file __P((unsigned long (*)(), void *));
|
||
void mywrite __P((void *, int, int, int));
|
||
void padfile __P((int,int));
|
||
|
||
/* In warnings.c: */
|
||
void perror_name __P((char *));
|
||
void perror_file __P((struct file_entry *));
|
||
void print_symbols __P((FILE *));
|
||
char *get_file_name __P((struct file_entry *));
|
||
void print_file_name __P((struct file_entry *, FILE *));
|
||
void prline_file_name __P((struct file_entry *, FILE *));
|
||
int do_warnings __P((FILE *));
|
||
|
||
/* In etc.c: */
|
||
void *xmalloc __P((size_t));
|
||
void *xrealloc __P((void *, size_t));
|
||
char *concat __P((const char *, const char *, const char *));
|
||
|
||
/* In symbol.c: */
|
||
void symtab_init __P((int));
|
||
symbol *getsym __P((char *)), *getsym_soft __P((char *));
|
||
|
||
/* In lib.c: */
|
||
void search_library __P((int, struct file_entry *));
|
||
void read_shared_object __P((int, struct file_entry *));
|
||
int findlib __P((struct file_entry *));
|
||
|
||
/* In shlib.c: */
|
||
char *findshlib __P((char *, int *, int *, int));
|
||
void add_search_dir __P((char *));
|
||
void add_search_path __P((char *));
|
||
void std_search_path __P((void));
|
||
int getdewey __P((int[], char *));
|
||
int cmpndewey __P((int[], int, int[], int));
|
||
|
||
/* In rrs.c: */
|
||
void init_rrs __P((void));
|
||
int rrs_add_shobj __P((struct file_entry *));
|
||
void alloc_rrs_reloc __P((struct file_entry *, symbol *));
|
||
void alloc_rrs_segment_reloc __P((struct file_entry *, struct relocation_info *));
|
||
void alloc_rrs_jmpslot __P((struct file_entry *, symbol *));
|
||
void alloc_rrs_gotslot __P((struct file_entry *, struct relocation_info *, localsymbol_t *));
|
||
void alloc_rrs_cpy_reloc __P((struct file_entry *, symbol *));
|
||
|
||
int claim_rrs_reloc __P((struct file_entry *, struct relocation_info *, symbol *, long *));
|
||
long claim_rrs_jmpslot __P((struct file_entry *, struct relocation_info *, symbol *, long));
|
||
long claim_rrs_gotslot __P((struct file_entry *, struct relocation_info *, struct localsymbol *, long));
|
||
long claim_rrs_internal_gotslot __P((struct file_entry *, struct relocation_info *, struct localsymbol *, long));
|
||
void claim_rrs_cpy_reloc __P((struct file_entry *, struct relocation_info *, symbol *));
|
||
void claim_rrs_segment_reloc __P((struct file_entry *, struct relocation_info *));
|
||
void consider_rrs_section_lengths __P((void));
|
||
void relocate_rrs_addresses __P((void));
|
||
void write_rrs __P((void));
|
||
|
||
/* In <md>.c */
|
||
void md_init_header __P((struct exec *, int, int));
|
||
long md_get_addend __P((struct relocation_info *, unsigned char *));
|
||
void md_relocate __P((struct relocation_info *, long, unsigned char *, int));
|
||
void md_make_jmpslot __P((jmpslot_t *, long, long));
|
||
void md_fix_jmpslot __P((jmpslot_t *, long, u_long));
|
||
int md_make_reloc __P((struct relocation_info *, struct relocation_info *, int));
|
||
void md_make_jmpreloc __P((struct relocation_info *, struct relocation_info *, int));
|
||
void md_make_gotreloc __P((struct relocation_info *, struct relocation_info *, int));
|
||
void md_make_copyreloc __P((struct relocation_info *, struct relocation_info *));
|
||
void md_set_breakpoint __P((long, long *));
|
||
|
||
#ifdef NEED_SWAP
|
||
void md_swapin_exec_hdr __P((struct exec *));
|
||
void md_swapout_exec_hdr __P((struct exec *));
|
||
void md_swapin_reloc __P((struct relocation_info *, int));
|
||
void md_swapout_reloc __P((struct relocation_info *, int));
|
||
void md_swapout_jmpslot __P((jmpslot_t *, int));
|
||
|
||
/* In xbits.c: */
|
||
void swap_longs __P((long *, int));
|
||
void swap_symbols __P((struct nlist *, int));
|
||
void swap_zsymbols __P((struct nzlist *, int));
|
||
void swap_ranlib_hdr __P((struct ranlib *, int));
|
||
void swap__dynamic __P((struct link_dynamic *));
|
||
void swap_section_dispatch_table __P((struct section_dispatch_table *));
|
||
void swap_so_debug __P((struct so_debug *));
|
||
void swapin_sod __P((struct sod *, int));
|
||
void swapout_sod __P((struct sod *, int));
|
||
void swapout_fshash __P((struct fshash *, int));
|
||
#endif
|