* mingwex/Makefile.in (DISTFILES): Add membarrier.c.
(REPLACE_OBJS): Add membarrier.o.
+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>
* include/process.h (_wexec*, _wspawn*): Declare.
fegetexceptflag.c fegetround.c feholdexcept.c feraiseexcept.c \
fesetenv.c fesetexceptflag.c fesetround.c fetestexcept.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 \
testwmem.c tst-aligned-malloc.c ulltoa.c ulltow.c wcstof.c \
wcstoimax.c wcstold.c wcstoumax.c wctrans.c wctype.c \
dirent.o wdirent.o getopt.o ftruncate.o gettimeofday.o usleep.o \
basename.o dirname.o tsearch.o twalk.o tdelete.o tfind.o
REPLACE_OBJS = \
- mingw-aligned-malloc.o mingw-fseek.o
+ membarrier.o mingw-aligned-malloc.o mingw-fseek.o
COMPLEX_OBJS = \
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 \
--- /dev/null
+/**
+ * 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));
+}
+