Commit Graph

12 Commits

Author SHA1 Message Date
Alexander Kabaev
9d6b9560a8 FreeBSD uses unchanged versions of this files. 2007-05-19 02:12:21 +00:00
Alexander Kabaev
31a119f3ed Stock files. 2005-06-03 03:50:42 +00:00
Alexander Kabaev
f246de45e2 Use stock GCC versions on these files. 2004-07-28 03:36:15 +00:00
Alexander Kabaev
b2bcf6753d FreeBSD uses stock versions of these GCC files. 2003-07-11 04:00:23 +00:00
David E. O'Brien
21da7e2bd7 Use pure stock files. 2002-12-04 16:31:48 +00:00
Alexander Kabaev
c2f7e7c4f8 Use the stock 3.2.1-prerelease file.
Approved by:	obrien
2002-10-10 04:50:29 +00:00
Alexander Kabaev
2556bafc14 Use the stock 3.2.1-prerelease file.
Approved by:	obrien
2002-09-01 21:08:29 +00:00
David E. O'Brien
21afea8038 We use the stock [3.1-snap] file. 2002-02-06 04:49:08 +00:00
David E. O'Brien
77ba2fa135 Use the stock file for now. 1999-10-27 09:45:47 +00:00
David E. O'Brien
293515f678 Fix conflicts. 1999-08-30 00:01:36 +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
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