Use libssp_nonshared library to pull __stack_chk_fail_local symbol into
each library that needs it instead of pulling it from libc. GCC generates
local calls to this function which result in absolute relocations put into
position-independent code segment, making dynamic loader do extra work everys
time given shared library is being relocated and making affected text pages
non-shareable.
Reviewed by: kib
Approved by: re (kensmith)
variations (e500 currently), this provides a gcc-level FPU emulation and is an
alternative approach to the recently introduced kernel-level emulation
(FPU_EMU).
Approved by: cognet (mentor)
MFp4: e500
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.
gets most of it content back now, when symbols from LIB2FUNCS are actually
compiled.
Noticed by: Steve Kargl <gk at troutmask dot apl dot washington dot edu>
Pointy hat to: kan
under way to move the remnants of the a.out toolchain to ports. As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL. It has already lasted WAY beyond
that.
Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.
Tested on: i386 (extensively), alpha
sparc64 looked for the nonexistent sparc64/lb1spc.asm file instead
of the sparc/lb1spc.asm file.
arm probably looked for arm/arm/lib1funcs.asm instead of arm/lib1funcs.asm
ia64 probably looked for ia64/ia64/lib1funcs.asm instead of ia64/lib1funcs.asm
i386 and alpha don't seen to use the LIB1ASMSRC.
later. Otherwise make will try and build the supposedly assembler .o
files from libgcc2.c - which does not work too well (the .o's have no
content)
Reviewed by: obrien
We now fake out the native libgcc.mk + GNU autoconf'ed Makefile.
This gives us the flexability we will need to support our new arches
(StrongARM, Sparc64, PowerPC, and IA-64). If this new way proves to
be too much a hassle, I still have a close-to-being-finished version
that is more like the 2.95 version of this file.
non-threaded programs. This provides threaded programs with the
needed exception frame symbols.
parts submitted by: Max Khon <fjoe@iclub.nsu.ru>
PR: 23252
${LIB} was wrong at dependency-parsing time, so dependencies for
libgcc_r*.a were wrong. This somehow worked right, except libgcc_r*.a
were always out of date.
than ".so". The old extension conflicted with well-established
naming conventions for dynamically loadable modules.
The "clean" targets continue to remove ".so" files too, to deal with
old systems.
