src/gnu/lib/libstdc++/config.h, branch releng/12.3

Update libstdc++ configuration.

2018-07-16T18:53:28Z

Its been quite a while since the last time we updated this and since then we have grown iconv and a bunch of complex math functions. This only applies to the platforms which still use GCC 4.2.1 in the toolchain. Differential Revision: https://reviews.freebsd.org/D16289

Teach libstdc++ about logl(3).

2013-08-13T20:28:21Z

The logl(3) family of functions were implemented in r251292. Define them in libstdc++'s configuration so they can be used. Reviewed by: dim

Regenerate libstdc++'s config.h, synchronizing it with our current

2013-02-15T23:12:35Z

almost-C99 headers. MFC after: 1 week

Turn on TLS support for arm on here as it is supported since r231618/

2012-06-14T20:27:28Z

r231619 and working since r233106.

When one attempts to compile the tree with -march=i386, which also used

2011-11-06T14:07:23Z

to be gcc's default before r198344, calls to atomic builtins will not be expanded inline. Instead, they will be generated as calls to external functions (e.g. __sync_fetch_and_add_N), leading to linking errors later on. Put in a seatbelt that disables use of atomic builtins in libstdc++ and llvm, when tuning specifically for the real i386 CPU. This does not protect against all possible issues, but it is better than nothing.

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

2011-03-11T21:24:02Z

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

GCC defines built-ins for atomic instructions found on i486 and higher.

2010-09-07T08:33:17Z

Because FreeBSD no longer supports the 80386 cpu all code targeting FreeBSD/i386 necessarily runs on i486 or higher so the compiler built-ins can be used by default inside libstdc++ and in C++ headers. This allows newly compiled C++ code to inline some atomic operations. Old binaries continue to use libstdc++ functions. PR: 148926 Tested by: Yuri Karaban Reviewed by: kan Approved by: kib (mentor) MFC after: 2 weeks

Add MIPS to the list of "no TLS" architectures.

2008-05-03T21:24:28Z

Approved by: cognet (mentor)

Update bmake glue to build GCC 4.2.

2007-05-19T04:25:59Z

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.

Reduce diffs with file generated by FSF configure.

2006-09-22T15:08:07Z