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* mingwex/membarrier.c: New file. 

* mingwex/Makefile.in (DISTFILES): Add membarrier.c.
	(REPLACE_OBJS): Add membarrier.o.
This commit is contained in:
Earnie Boyd 2012-08-06 18:05:53 +00:00
parent 705d9e463c
commit 525800e855
3 changed files with 27 additions and 2 deletions
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6
winsup/mingw/ChangeLog
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@ -1,3 +1,9 @@
2012-08-06 Earnie Boyd <earnie@users.sourceforge.net>
* mingwex/membarrier.c: New file.
* mingwex/Makefile.in (DISTFILES): Add membarrier.c.
(REPLACE_OBJS): Add membarrier.o.
2012-08-02 Ivan Maidanski <ivmai@users.sourceforge.net> 2012-08-02 Ivan Maidanski <ivmai@users.sourceforge.net>
* include/process.h (_wexec*, _wspawn*): Declare. * include/process.h (_wexec*, _wspawn*): Declare.

4
winsup/mingw/mingwex/Makefile.in
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@ -40,7 +40,7 @@ DISTFILES = \
fegetexceptflag.c fegetround.c feholdexcept.c feraiseexcept.c \ fegetexceptflag.c fegetround.c feholdexcept.c feraiseexcept.c \
fesetenv.c fesetexceptflag.c fesetround.c fetestexcept.c \ fesetenv.c fesetexceptflag.c fesetround.c fetestexcept.c \
feupdateenv.c ftruncate.c fwide.c getopt.c imaxabs.c imaxdiv.c \ feupdateenv.c ftruncate.c fwide.c getopt.c imaxabs.c imaxdiv.c \
lltoa.c lltow.c mbsinit.c mingw-aligned-malloc.c \ lltoa.c lltow.c mbsinit.c membarrier.c mingw-aligned-malloc.c \
mingw-fseek.c sitest.c strtoimax.c strtoumax.c \ mingw-fseek.c sitest.c strtoimax.c strtoumax.c \
testwmem.c tst-aligned-malloc.c ulltoa.c ulltow.c wcstof.c \ testwmem.c tst-aligned-malloc.c ulltoa.c ulltow.c wcstof.c \
wcstoimax.c wcstold.c wcstoumax.c wctrans.c wctype.c \ wcstoimax.c wcstold.c wcstoumax.c wctrans.c wctype.c \
@ -201,7 +201,7 @@ POSIX_OBJS = \
dirent.o wdirent.o getopt.o ftruncate.o gettimeofday.o usleep.o \ dirent.o wdirent.o getopt.o ftruncate.o gettimeofday.o usleep.o \
basename.o dirname.o tsearch.o twalk.o tdelete.o tfind.o basename.o dirname.o tsearch.o twalk.o tdelete.o tfind.o
REPLACE_OBJS = \ REPLACE_OBJS = \
mingw-aligned-malloc.o mingw-fseek.o membarrier.o mingw-aligned-malloc.o mingw-fseek.o
COMPLEX_OBJS = \ COMPLEX_OBJS = \
cabs.o cabsf.o cabsl.o cacos.o cacosf.o cacosl.o cacosh.o \ cabs.o cabsf.o cabsl.o cacos.o cacosf.o cacosl.o cacosh.o \
cacoshf.o cacoshl.o carg.o cargf.o cargl.o casin.o casinf.o \ cacoshf.o cacoshl.o carg.o cargf.o cargl.o casin.o casinf.o \

19
winsup/mingw/mingwex/membarrier.c Normal file
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@ -0,0 +1,19 @@
/**
* THIS SOFTWARE IS NOT COPYRIGHTED
*
* This source code is offered for use in the public domain. You may
* use, modify or distribute it freely.
*
* This code is distributed in the hope that it will be useful but
* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
* DISCLAIMED. This includes but is not limited to warranties of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
void __mingworg_MemoryBarrier(void);
void __mingworg_MemoryBarrier(void)
{
long Barrier = 0;
__asm__ __volatile__("xchgl %%eax,%0 "
:"=r" (Barrier));
}