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gcc/libgcc/config
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Jonathan Wakely e2fc12a5da libstdc++: Fix unintended layout change to std::basic_filebuf [PR108331] 
GCC 13 has a new implementation of gthr-win32.h which supports C++11
mutexes, threads etc. but this causes an unintended ABI break. The
__gthread_mutex_t type is always used in std::basic_filebuf even in
C++98, so independent of whether C++11 sync primitives work or not.
Because that type changed for the win32 thread model, we have a layout
change in std::basic_filebuf. The member is completely unused, it just
gets passed to the std::__basic_file constructor and ignored. So we
don't need that mutex to actually work, we just need its layout to not
change.

Introduce a new __gthr_win32_legacy_mutex_t struct in gthr-win32.h with
the old layout, and conditionally use that in std::basic_filebuf.

	PR libstdc++/108331

libgcc/ChangeLog:

	* config/i386/gthr-win32.h (__gthr_win32_legacy_mutex_t): New
	struct matching the previous __gthread_mutex_t struct.
	(__GTHREAD_LEGACY_MUTEX_T): Define.

libstdc++-v3/ChangeLog:

	* config/io/c_io_stdio.h (__c_lock): Define as a typedef for
	__GTHREAD_LEGACY_MUTEX_T if defined.
2023-01-13 13:34:20 +00:00
..
aarch64 libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
alpha libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
arc libgcc, arc: Fix build 2022-10-07 00:16:11 +02:00
arm arm: unified syntax for libgcc clear_cache 2023-01-13 13:04:04 +00:00
avr Daily bump. 2022-09-20 00:17:49 +00:00
bfin libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
bpf
c6x Update copyright years. 2022-01-03 10:42:10 +01:00
cris Update copyright years. 2022-01-03 10:42:10 +01:00
csky libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
epiphany Update copyright years. 2022-01-03 10:42:10 +01:00
fr30 Update copyright years. 2022-01-03 10:42:10 +01:00
frv Update copyright years. 2022-01-03 10:42:10 +01:00
ft32 Update copyright years. 2022-01-03 10:42:10 +01:00
gcn GCN: Implement __atomic_compare_exchange_{1,2} in libgcc [PR102215] 2022-03-09 19:34:48 +01:00
h8300 Update copyright years. 2022-01-03 10:42:10 +01:00
i386 libstdc++: Fix unintended layout change to std::basic_filebuf [PR108331] 2023-01-13 13:34:20 +00:00
ia64 libgcc: IA64: don't compile glibc-based unwinder without libc headers 2022-04-08 08:01:06 +01:00
iq2000 Update copyright years. 2022-01-03 10:42:10 +01:00
libbid Update Copyright year in ChangeLog files 2023-01-02 09:23:36 +01:00
lm32 Update copyright years. 2022-01-03 10:42:10 +01:00
loongarch libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
m32c Update copyright years. 2022-01-03 10:42:10 +01:00
m32r Update copyright years. 2022-01-03 10:42:10 +01:00
m68k libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
mcore Update copyright years. 2022-01-03 10:42:10 +01:00
microblaze Update copyright years. 2022-01-03 10:42:10 +01:00
mips libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
mmix Update copyright years. 2022-01-03 10:42:10 +01:00
moxie Update copyright years. 2022-01-03 10:42:10 +01:00
msp430 Update copyright years. 2022-01-03 10:42:10 +01:00
nds32 libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
nios2 libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
nvptx Update copyright years. 2022-01-03 10:42:10 +01:00
or1k libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
pa libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
pdp11
pru Update copyright years. 2022-01-03 10:42:10 +01:00
riscv libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
rl78 Update copyright years. 2022-01-03 10:42:10 +01:00
rs6000 libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
rx Update copyright years. 2022-01-03 10:42:10 +01:00
s390 libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
score Update copyright years. 2022-01-03 10:42:10 +01:00
sh libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
sol2 Update copyright years. 2022-01-03 10:42:10 +01:00
sparc libgcc: Decrease size of _Unwind_FrameState and even more size of cleared area in uw_frame_state_for 2022-10-06 11:04:52 +02:00
stormy16 Update copyright years. 2022-01-03 10:42:10 +01:00
v850 Update copyright years. 2022-01-03 10:42:10 +01:00
vax Update copyright years. 2022-01-03 10:42:10 +01:00
visium Update copyright years. 2022-01-03 10:42:10 +01:00
vms Update copyright years. 2022-01-03 10:42:10 +01:00
xtensa libgcc: xtensa: remove stray symbols from X*HAL macro definitions 2022-12-08 01:16:56 -08:00
darwin-64.c Update copyright years. 2022-01-03 10:42:10 +01:00
darwin-crt-tm.c Update copyright years. 2022-01-03 10:42:10 +01:00
darwin-crt3.c Update copyright years. 2022-01-03 10:42:10 +01:00
darwin-unwind.ver libgcc, Darwin: Build a libgcc_s.1 for backwards compatibility. 2021-12-08 19:53:28 +00:00
darwin10-unwind-find-enc-func.c Darwin, crts: Fix a build warning. 2021-11-05 20:48:05 +00:00
gthr-lynx.h Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-rtems.h Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-vxworks-cond.c Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-vxworks-thread.c Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-vxworks-tls.c Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-vxworks.c Update copyright years. 2022-01-03 10:42:10 +01:00
gthr-vxworks.h Prevent secondary warning from diagnostic tweak in gthr-vxworks.h 2022-10-02 09:13:14 +00:00
hardfp.c Update copyright years. 2022-01-03 10:42:10 +01:00
libgcc-glibc.ver Update copyright years. 2022-01-03 10:42:10 +01:00
libgcc-libsystem.ver Darwin: Rework handling for unwinder code in libgcc_s and specs [PR80556]. 2021-11-19 19:58:11 +00:00
no-sfp-machine.h
no-unwind.h
t-crtfm
t-crtstuff-pic
t-darwin libgcc, Darwin: Update darwin10 unwinder shim dependencies. 2021-12-10 23:15:15 +00:00
t-darwin-ehs Darwin, libgcc: Fix build errors on powerpc-darwin8. 2022-03-04 16:44:54 +00:00
t-dfprules
t-eh-dw2-dip
t-fdpbit
t-fixedpoint-gnu-prefix
t-fpbit
t-freebsd-thread
t-gnu-prefix
t-gthr-noweak
t-gthr-vxworks
t-gthr-vxworksae
t-hardfp Update copyright years. 2022-01-03 10:42:10 +01:00
t-hardfp-sfdf Update copyright years. 2022-01-03 10:42:10 +01:00
t-libgcc-pic
t-libunwind
t-libunwind-elf Update copyright years. 2022-01-03 10:42:10 +01:00
t-linux
t-openbsd-thread
t-rtems
t-slibgcc Update copyright years. 2022-01-03 10:42:10 +01:00
t-slibgcc-darwin libgcc, Darwin: No early install for the compatibility libgcc_s.1.dylib. 2022-12-24 13:52:46 +00:00
t-slibgcc-elf-ver
t-slibgcc-fuchsia Update copyright years. 2022-01-03 10:42:10 +01:00
t-slibgcc-gld
t-slibgcc-gld-nover
t-slibgcc-hpux
t-slibgcc-libgcc Update copyright years. 2022-01-03 10:42:10 +01:00
t-slibgcc-nolc-override
t-slibgcc-sld
t-slibgcc-vms libgcc: Honor LDFLAGS_FOR_TARGET when linking libgcc_s 2021-08-05 17:32:06 +02:00
t-softfp Update copyright years. 2022-01-03 10:42:10 +01:00
t-softfp-compat
t-softfp-excl
t-softfp-sfdf
t-softfp-sfdftf
t-softfp-tf
t-stack
t-tls
t-vxcrtstuff Fix the vxworks crtstuff handling of kernel/rtp variations 2020-10-16 15:33:35 +00:00
t-vxcrtstuffS Tigthen libc_internal and crtstuff for VxWorks shared objects 2021-12-13 18:03:03 +00:00
t-vxworks Adjust LIBGCC2_INCLUDES for VxWorks and augment comment 2022-10-02 09:33:00 +00:00
t-vxworksae
unwind-dw2-fde-darwin.c Update copyright years. 2022-01-03 10:42:10 +01:00
vxcrtstuff.c Improve comments and INITFINI macro use in vxcrtsutff.c 2022-09-29 18:02:21 +00:00