src/gnu/usr.bin/cc/cc_tools/auto-host.h, branch main

remove GCC 4.2.1 build infrastructure

2020-02-29T03:25:51+00:00

As described in Warner's email message[1] to the FreeBSD-arch mailing
list we have reached GCC 4.2.1's retirement date.  At this time all
supported architectures either use in-tree Clang, or rely on external
toolchain (i.e., a contemporary GCC version from ports).

GCC 4.2.1 was released July 18, 2007 and was imported into FreeBSD later
that year, in r171825.  GCC has served us well, but version 4.2.1 is
obsolete and not used by default on any architecture in FreeBSD.  It
does not support modern C and does not support arm64 or RISC-V.

Thanks to everyone responsible for maintaining, updating, and testing
GCC in the FreeBSD base system over the years.

So long, and thanks for all the fish.

[1] https://lists.freebsd.org/pipermail/freebsd-arch/2020-January/019823.html

PR:		228919
Reviewed by:	brooks, imp
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D23124

After the binutils 2.17.50 import, the assembler supports AS_REL16

2012-07-08T17:02:14+00:00

relocations.

Enable TLS support for ARM toolchain

2012-02-14T00:18:18+00:00

Reviewed by:	cognet

Now that TLS is supported for sparc64 by both binutils 2.17.50 committed

2011-03-11T21:24:02+00:00

in r218822 and rtld(1) committed in r219533 turn on TLS support in GCC.

Merge binutils 2.17.50 to head. This brings a number of improvements to

2011-02-18T20:54:12+00:00

x86 CPU support, better support for powerpc64, some new directives, and
many other things.  Bump __FreeBSD_version, and add a note to UPDATING.

Thanks to the many people that have helped to test this.

Obtained from:	projects/binutils-2.17

Fix a missing underscore.

2010-12-09T17:39:40+00:00

In case of powerpc64, enable HAVE_LD_NO_DOT_SYMS in gcc's auto-host.h.

2010-10-22T20:43:37+00:00

Requested by:	nwhitehorn

Update gcc's auto-host.h header for binutils 2.17: turn on

2010-10-22T18:12:40+00:00

HAVE_COMDAT_GROUP, HAVE_GAS_WEAKREF and HAVE_LD_SYSROOT.

Disable TLS for arm and sparc64 here as binutils 2.15 predate GNU TLS

2007-10-08T18:59:34+00:00

support for these. This is in line with gnu/lib/libgomp/config.h and
gnu/lib/libstdc++/config.h.

Reviewed by:	cognet, obrien
Approved by:	re (kensmith)

Update bmake glue to build GCC 4.2.

2007-05-19T04:25:59+00:00

Also:
        Switch FreeBSD to use libgcc_s.so.1.

        Use dl_iterate_phdr to locate shared objects' exception frame
        info instead of depending on older register_frame_info machinery.
        This allows us to avoid depending on libgcc_s.so.1 in binaries
        that do not use exception handling directly. As an additional
        benefit it breaks circular libc <=> libgcc_s.so.1 dependency too.

        Build newly added libgomp.so.1 library, the runtime support
        bits for OpenMP.

        Build LGPLed libssp library. Our libc provides our own
        BSD-licensed SSP callbacks implementation, so this library
        is only built to benefit applications that have hadcoded
        knowledge of libssp.so and libssp_nonshared.a. When linked
        in from command line, these libraries override libc
        implementation.