Commit Graph

260 Commits

Author SHA1 Message Date
Bruce Evans
d983fa4305 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
John Polstra
3bc25faee6 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
Bruce Evans
c15a5b80be Fixed printf format errors. 1998-06-30 19:53:09 +00:00
John Birrell
6e2f2fe480 Add LIB_SPEC (same as on i386) so that gcc knows about libc_r. 1998-06-08 10:58:36 +00:00
Peter Wemm
4af3a821f1 -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
John Birrell
2161ed1f46 Document the FreeBSD specific options from LIB_SPEC. 1998-04-10 09:19:11 +00:00
John Birrell
6db4691d19 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
John Birrell
1de944af88 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
John Birrell
0f471b05f9 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
John Birrell
37aebf7ed2 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 Wemm
42fcd1ffa9 Both our a.out (hacked) gas and the binutils gas support .weak
Prompted by: bde
1998-03-09 04:47:58 +00:00
Peter Wemm
df320ec9d3 Only do a.out/elf switching on i386 family 1998-03-09 04:13:31 +00:00
Peter Wemm
3f39463468 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 Wemm
b51cdb1e8b Spell -Bshareable correctly... :-] 1998-03-08 16:09:57 +00:00
Peter Wemm
a2034fc036 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 Wemm
9ed6fc5562 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 Wemm
178576c62f 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 Wemm
ebdff85b87 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 Wemm
9cb13c2344 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
John Birrell
2e56a2ce82 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
John Birrell
0f4140c055 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
Wolfram Schneider
f6b31571f6 spelling corrections.
PR: docs/4450
Submitted by: josh@quick.net
1997-09-13 16:01:53 +00:00
Peter Wemm
2eba9bcd51 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
John Polstra
6eb0e3b9f9 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
Bruce Evans
d2f874d9b7 Attempt to fix clobbered vendor Id. 1997-06-29 11:43:31 +00:00
Satoshi Asami
7371365efc Make all the info dir entries line up neatly. 1997-05-28 07:49:21 +00:00
Eivind Eklund
6ad98044a1 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 Wemm
5db0562b97 The -pthread option was added to freebsd.h but missed from freebsd-elf.h 1997-05-12 09:24:27 +00:00
John-Mark Gurney
86696f47ac change an' to a'...
Submitted by: Josh Gilliam
Closes PR#3471
1997-05-05 07:43:50 +00:00
John Birrell
85351f7d5a 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 Wemm
300fb94053 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
John Polstra
07bb70bf47 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
John Polstra
5a55bb419e 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
John Polstra
27aa98671d Update the value of "__FreeBSD__" to 3 for the ELF compiler. 1997-03-26 17:05:21 +00:00
Satoshi Asami
8fd2f83608 -current is now 3.0. NOT a 2.2 candidate. :) 1997-03-25 08:06:06 +00:00
John-Mark Gurney
538efd5320 slight fix to gcc's man page... 1997-03-23 00:51:16 +00:00
David E. O'Brien
6a16ae63cd 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 Wemm
8988623bce check for /usr/libdata/gcc/specs and use it if it exists. 1997-02-22 15:21:40 +00:00
Peter Wemm
dc92c6d1cb Back out easy $FreeBSD$ (file already left vendor branch) 1997-02-22 10:52:38 +00:00
David E. O'Brien
dfc33decb2 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
Jordan K. Hubbard
1130b656e5 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
Poul-Henning Kamp
ec4076d321 Fix BB profiling.
Submitted by:	bde
1997-01-13 12:15:29 +00:00
Joshua Peck Macdonald
a27d0c0f96 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 Wemm
2c80f2dbdb 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 Wemm
8adcea95d1 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
John Polstra
87f11ab41b 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
Peter Wemm
b376b0ea5f Activate the .weak code generation for libgcc.a and g++ now that it works. 1996-10-01 02:20:27 +00:00
Peter Wemm
252bb01fbc Temporarily disable the code that wants to add -lstdc++ in tge g++ driver
since we don't have it yet and I've taken too long on the libg++-2.7.2
stuff (it causes problems due to to the lack of .weak support which I've
nearly finished)

Submitted by: "Ph. Charnier" <charnier@xp11.frmug.org>
1996-09-27 05:13:40 +00:00
Peter Wemm
b5ad28261f Doc fixes and updates to reflect reality, as well as info about profiling
extensions.
1996-09-18 06:56:52 +00:00
Peter Wemm
da843809ce Merge in freebsd-specific changes 1996-09-18 06:54:11 +00:00
Peter Wemm
852e8be503 Add in hooks to produce assembler output suitable for binutils+elf
Obtained from: John Polstra <jdp@freebsd.org>, from his elfkit.
1996-09-18 06:50:39 +00:00
Peter Wemm
7767f29ab5 Add the hooks that we use for our profiling extensions.
Obtained from: bde
1996-09-18 06:47:49 +00:00
Peter Wemm
f7f03b3cbc When running native on freebsd (ie: in /usr/bin, /usr/libexec, not the
gnu-style /usr/local/lib/gcc* layout), only search the paths that
exist for the modules (cc1, cc1plus , cc1obj etc)

Also, update an error message.
1996-09-18 06:45:17 +00:00
Peter Wemm
655565618b When compiling native on freebsd, do not search the multitude of extended
include file paths that do not exist.
1996-09-18 06:40:54 +00:00
Peter Wemm
864252eaad build libgcc*.a a little more compact by removing excess local symbols
Obtained from: bde
1996-09-18 06:37:22 +00:00
Peter Wemm
24501dd0c6 My feeble attempt at fixing complaints that makeinfo makes about
errors in this doc.
1996-09-18 06:35:00 +00:00
Peter Wemm
d0fd7b1858 Do not print two \n's in a fatal error message.
Obtained from: bde
1996-09-18 06:33:32 +00:00
Peter Wemm
97d25bbf44 Patches originally obtained from Bruce Evans <bde@freebsd.org> to make
gcc "do the right thing" when running standalone on FreeBSD
1996-09-18 06:31:42 +00:00
Peter Wemm
9882643d04 Import of 2.7.2.1 into vendor branch 1996-09-18 05:45:16 +00:00
Peter Wemm
a4cd5630b0 Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the
non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.
1996-09-18 05:35:50 +00:00