Commit Graph

64 Commits

Author SHA1 Message Date
imp
0a82f89ab6 Add alpha-*=freebsd* to configure 1998-09-09 17:07:36 +00:00
jdp
5b11e2a2f4 Make profiling work for ELF. gprof now autodetects the format of
the executable file, so it will work for both a.out and ELF format
files.  I have split the object format specific code into separate
source files.  It's cleaner than it was before, but it's still
pretty crufty.

Don't cheat on your make world for this update.  A lot of things
have to be rebuilt for it to work, including the compiler and all
of the profiled libraries.
1998-09-07 23:32:00 +00:00
jb
44d03426b1 Change /etc/objectformat to /etc/objformat. Last chance 'cause it's E-day.
Suggested by: jdp
1998-08-30 20:40:29 +00:00
bde
f0825df278 Support printf format checking of FreeBSD kernel formats %[Dbrz].
This is enabled by the undocumented option -fformat-extensions.
This option should be named better and/or give more control over
the extensions.

Fixed a message - don't warn about the field width when it's the
precision that has the wrong type.  Didn't fix excessive checking
for the precision relative to the type - ANSI requires both to be
ints, but gcc permits the field width to be either int or unsigned
int.
1998-08-24 06:33:52 +00:00
bde
559a9a5f7d Fixed printf format errors. gcc should have a macro HOST_PTR_PRINTF_TYPE
to go with its HOST_PTR_PRINTF[_FORMAT], since if %p is wrong for the
format then `void *' is probably wrong for the type.
1998-08-02 14:57:00 +00:00
jdp
0883088b05 Add support for a new archetype "printf0" for the "format" function
attribute.  It is like the existing "printf" archetype, except that
it doesn't complain if the format string is a null pointer.  See
the node "Function Attributes" in the GCC info pages if you don't
know what this is all about.

This change will allow us to add format string checking for the
err(3) family of functions.
1998-07-15 04:22:45 +00:00
bde
080e3ef296 Fixed printf format errors. 1998-06-30 19:53:09 +00:00
jb
ba935f3272 Add LIB_SPEC (same as on i386) so that gcc knows about libc_r. 1998-06-08 10:58:36 +00:00
peter
9527a97222 -pg was causing a link with -lc_r... :-]
Submitted by:  Dmitry Khrustalev <dima@xyzzy.machaon.ru>
PR: 6287
1998-04-13 14:12:34 +00:00
jb
035d92130a Document the FreeBSD specific options from LIB_SPEC. 1998-04-10 09:19:11 +00:00
jb
813e1f6dac Ouch, my local cvs walloped the version I thought I was committing.
Here is what I intended.
1998-03-14 03:02:19 +00:00
jb
7b1976eca5 On i386, freebsd.h and freebsd-elf.h have been merged to combine
aout and elf support. freebsd-elf.h died as a result, so the BINFORMAT
test for elf in src/gnu/usr.bin/cc/cc_tool/Makefile will need to
use freebsd.h, not freebsd-elf.h. That means that alpha will have to
go the same way. The new alpha/freebsd.h has the alpha/freebsd-elf.h
definitions merged in.
1998-03-13 21:12:12 +00:00
jb
cb348fd0d5 Nuke crti.o from the STARTFILE_SPEC again. No asm code is needed on alpha.
Add the define that lets gas know how to ".set" and enable pragmas
so that #pragma weak will work.
1998-03-11 20:56:24 +00:00
jb
c736173442 Change the LINK_SPEC to specify the same runtime loader as used on
i386-elf because that is what will be used for FreeBSD/Alpha.

Change the STARTFILE_SPEC to match the non-aout version of i386 so
that the csu files can be built in exactly the same way as i386-elf.
This means that FreeBSD/Alpha departs from NetBSD/Alpha which uses
crt0 and crtbegin/crtend. Since i386-aout uses crt0, I guess it was
decided that i386-elf should use crt1. i386-elf also references
crti and with this change, so does FreeBAS/Alpha.

I think it is important for FreeBSD to have a consistent implementation
across architectures and since ELF is quite compatible (ignoring
differences in 32 and 64 bits), gcc might as well be configured the
same.

Another change is that the entry symbol is _start, not __start as
in NetBSD.
1998-03-10 06:47:14 +00:00
peter
b0d1291cc8 Both our a.out (hacked) gas and the binutils gas support .weak
Prompted by: bde
1998-03-09 04:47:58 +00:00
peter
b4375c6592 Only do a.out/elf switching on i386 family 1998-03-09 04:13:31 +00:00
peter
b13939a64c Don't disable the use of $ in assembler labels.. It changes libstdc++
and libg++ so that they won't work with existing binaries (including
netscape!!).
1998-03-09 03:26:57 +00:00
peter
075f262da2 Spell -Bshareable correctly... :-] 1998-03-08 16:09:57 +00:00
peter
5a58d42fe2 svr4.h defines ASM_IDENTIFY_GCC, but neglects to define
ASM_IDENTIFY_LANGUAGE.  Use the osfrose.h method, because gdb assumes
'C' by default, so there's no need to further clutter the symbol table.
1998-03-08 13:26:15 +00:00
peter
d616a733c3 Cosmetic cleanup for a.out asm generation.. Don't put the end-of-file
markers that the stabs-in-elf system uses.
1998-03-08 12:47:45 +00:00
peter
89f7f39c2e Put the function stabs in traditional order on a.out, or gdb doesn't see
function local variables.
1998-03-08 11:54:04 +00:00
peter
69d046431c Add hooks for John Birrell's kernel thread support library.
Submitted by: John Birrell <jb@cimlogic.com.au>
1998-03-08 05:33:24 +00:00
peter
c39aed21a8 First round of changes to support generation of assembler for the old
a.out gas and the binutils gas (elf or a.out) with a single compiler.

This uses other infrastructure not yet committed, in order to support
both a.out and elf it needs to be able to get to both a.out and elf
gas, ld, libs, crt* etc.  So for now, the support is pretty much dormant.

The new freebsd.h file is based on the old freebsd-elf.h file (which has a
long lineage, right back through linux and svr4 files).  The change is
pretty dramatic from a gcc internals standpoint as it overrides a lot of
definitions in order to generate different output based on target mode.
There is potential for screw-ups, so please be on the lookout - gcc's
configuration mechanism wasn't really meant for this kind of thing.
It's believed to compile world etc just fine under both a.out and elf, can
handle global constructors and destructors, handles the differences in
a.out and elf stabs, and what sections things like exceptions go in.

The initial idea came from i386/osfrose.h which is a dual rose/elf format
target.  These two are not as diverse as a.out and elf it would seem.

The cc front-end uses external configuration to determine default object
format (still being thrashed out, so read the source if you want to see
it so far), and has a '-aout' and '-elf' override command line switch.
There are some other internal switches that can be accessed, namely -maout,
-mno-aout, -munderscores and -mnounderscores.  The underscore and local
symbol prefixing rules are controllable seperately to the output format.
(ie: it's possible to generate a.out without the _ prefixes on symbols and
also to generate elf with the _ prefixes.  This isn't quite optimal, but
does seem to work pretty well, except the linkers don't always recognise
the local symbols without their normal names)

The default format is a.out (still), nobody should see any major changes.

With both elf and a.out tools and libraries installed:

[1:26pm]/tmp-223> cc -elf -o hello hello.c
peter@beast[1:27pm]/tmp-224> file hello
hello: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), dynamically linked, not stripped
[1:27pm]/tmp-225> ./hello
hello world!

[1:27pm]/tmp-226> cc -aout -o hello hello.c
[1:27pm]/tmp-227> file hello
hello: FreeBSD/i386 compact demand paged dynamically linked executable not stripped
1:27pm]/tmp-228> ./hello
hello world!

Since my co-conspirators put a lot of effort into this too, I'll add them
so they can share the blame^H^H^H^H^Hglory. :-)

Reviewed by: sos, jdp
1998-03-08 05:29:49 +00:00
jb
e430c03c79 Upgrade the cpp pre-defines to include -Dunix. Turns out we need that
to compile m4.

And don't just define __FreeBSD__, but define it as -D__FreeBSD__=3
like on i386.
1998-01-12 02:53:28 +00:00
jb
f0c9fe97ad Add the alpha MD files for gcc to product ELF for FreeBSD/Alpha.
See freebsd.h and freebsd-elf.h for the silly comment that cgd@netbsd.org
wanted me to add about his claim that uncommented source files that
have been publicly available for ftp for nearly a year; that are
configuration patches to a GPL'ed program; are owned by his previous
employer who refuses to release them. Well... I did as he said. As if
that makes a difference!

At this point we've got cpp, gcc, g++ ported to FreeBSD/Alpha so all
the code that uses __FreeBSD__ is correctly pre-processed. Yay.

I'll commit the bootstrap makefile next to let others play, then on
to libc.
1998-01-11 04:39:46 +00:00
wosch
fde8a8ec46 spelling corrections.
PR: docs/4450
Submitted by: josh@quick.net
1997-09-13 16:01:53 +00:00
peter
5c7910da94 Merge in some of my changes with John's. I've used this to build
an ELF system.  I'm not sure about some of the things here.  We definately
need to go back and rationalize this.
1997-08-29 06:11:52 +00:00
jdp
66c70016d7 Add the necessary defines to the freebsd-elf configuration so that
it can be built via BINFORMAT=elf in the environment.  Most likely
some of the directory defines such as STANDARD_EXEC_PREFIX will
change again soon, as we settle on the proper locations for the
various components.

Note, the build still fails when it tries to compile libgcc2.c
using the ELF compiler, unless arrangements have been made for the
compiler to find the ELF assembler instead of the a.out assembler.
1997-08-28 01:38:56 +00:00
bde
1508663a82 Attempt to fix clobbered vendor Id. 1997-06-29 11:43:31 +00:00
asami
b15bba4e8b Make all the info dir entries line up neatly. 1997-05-28 07:49:21 +00:00
eivind
7a1932b397 it's'' -> its'' where appropriate and typo fixes in time2posix.3.
Closes PR docs/3612.

Submitted by:	Josh Gilliam <soil@quick.net>
1997-05-19 16:33:27 +00:00
peter
4fade92ec3 The -pthread option was added to freebsd.h but missed from freebsd-elf.h 1997-05-12 09:24:27 +00:00
jmg
4e2b8410b9 change an' to a'...
Submitted by: Josh Gilliam
Closes PR#3471
1997-05-05 07:43:50 +00:00
jb
8063125723 Let gcc know about libc_r. Use -pthread to link against libc_r instead
of libc.
1997-05-03 02:58:54 +00:00
peter
93c713af2b correct vfork()/exit() to vfork()/_exit(). This is far more important
now that vfork() actually works in FreeBSD for the first time.

Spotted by: se
1997-04-25 06:42:57 +00:00
jdp
76800e1dac Make "gcc -shared" work properly for building shared libraries. An
up-to-date version of c++rt0.o is necessary for this to work right.

Closes PR gnu/3035: gcc -shared flag is broken.
1997-04-09 20:13:41 +00:00
jdp
8a34de70b7 Disallow "-p" when linking, with a diagnostic that recommends using
"-pg" and gprof(1) instead.  FreeBSD does not support plain "-p" or
prof(1).

Plain "-p" is still allowed when just compiling.  In the compile
phase, "-p" is identical "-pg".  It is used by <bsd.lib.mk> for
building profiled object files.
1997-04-05 16:19:08 +00:00
jdp
33b1550bf9 Update the value of "__FreeBSD__" to 3 for the ELF compiler. 1997-03-26 17:05:21 +00:00
asami
5db8032745 -current is now 3.0. NOT a 2.2 candidate. :) 1997-03-25 08:06:06 +00:00
jmg
9243f015c6 slight fix to gcc's man page... 1997-03-23 00:51:16 +00:00
obrien
aa03d66ddb Undo rev 1.4 of freebsd.h and 1.2 freebsd-elf.h, where I added
_BSD4_4 as a predefined symbol.  People on the lists generally didn't care
for it.
1997-02-24 13:19:34 +00:00
peter
03a8e14963 check for /usr/libdata/gcc/specs and use it if it exists. 1997-02-22 15:21:40 +00:00
peter
b041645f92 Back out easy $FreeBSD$ (file already left vendor branch) 1997-02-22 10:52:38 +00:00
obrien
0e2c5febdb Add _BSD4_4 as a predefined symbol.
Peter Dufault (dufault@hda.com) suggested this is the most approate symbol
to use.

2.2-R candidate.
1997-02-16 20:55:32 +00:00
jkh
808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
phk
f335bb5f50 Fix BB profiling.
Submitted by:	bde
1997-01-13 12:15:29 +00:00
jmacd
8514111caf This file has the info annotation, except its annotated name
is different from its filename for some reason.
1997-01-11 02:56:24 +00:00
peter
664237b984 Apparently this patch fixes the objc backend on the i386 platforms.
Without this, compiled programs die with FP errors.

This is originally credited to: jlemon@netcom.com (Jonathan Lemon), and
has been forwarded to me by quite a few of people.
1996-10-26 17:00:50 +00:00
peter
f27b081045 Remove temporary hack to disable use of libstdc++ now that it's built and
installed (and hopefully: working).
1996-10-04 08:51:18 +00:00
jdp
b400b72e46 Fix a bug that caused incorrect PIC code to be generated for exceptions.
The symptom was an assembler warning

    "GOT relocation burb: `___EXCEPTION_TABLE__' should be global"

followed (sometimes) by a core dump.  The fix makes the compiler
generate the correct GOTOFF addressing for that symbol, rather than the
GOT addressing it was emitting before.

Warning:  There is still at least one serious bug in the i386 exception
code for PIC.  The exception code that is generated clobbers the GOT
register (%ebx) and then tries to use it later.  That leads to core
dumps at program execution time.  I know where the problem is, but I do
not have a fix for it at this time.  Until it is fixed, exceptions will
not work in PIC code.  This is a general problem for all i386 platforms;
it is not specific to FreeBSD.
1996-10-03 17:49:35 +00:00