Code change:
<ins> From 30534f48c6ede142dad0008d1641392d82b8a137 Mon Sep 17 00:00:00 2001 From: Liu Hao <lh_mouse@126.com> Date: Mon, 18 Apr 2016 11:50:55 +0800 Subject: [PATCH] Added 'mcf' thread model support from mcfgthread. Signed-off-by: Liu Hao <lh_mouse@126.com> --- config/gthr.m4                          |  1 + gcc/config.gcc                          |  3 +++ gcc/config/i386/mingw-mcfgthread.h      |  1 + gcc/config/i386/mingw-w64.h             |  2 +- gcc/config/i386/mingw32.h               | 11 ++++++++++- gcc/configure                           |  2 +- gcc/configure.ac                        |  2 +- libatomic/configure.tgt                 |  2 +- libgcc/config.host                      |  6 ++++++ libgcc/config/i386/gthr-mcf.h           |  1 + libgcc/config/i386/t-mingw-mcfgthread   |  2 ++ libgcc/configure                        |  1 + libstdc++-v3/configure                  |  1 + libstdc++-v3/libsupc++/atexit_thread.cc | 18 ++++++++++++++++++ libstdc++-v3/libsupc++/guard.cc         | 23 +++++++++++++++++++++++ 15 files changed, 71 insertions(+), 5 deletions(-) create mode 100644 gcc/config/i386/mingw-mcfgthread.h create mode 100644 libgcc/config/i386/gthr-mcf.h create mode 100644 libgcc/config/i386/t-mingw-mcfgthread diff --git a/config/gthr.m4 b/config/gthr.m4 index 7b29f1f3327..82e21fe1709 100644 --- a/config/gthr.m4 +++ b/config/gthr.m4 @@ -21,6 +21,7 @@ case $1 in tpf)	thread_header=config/s390/gthr-tpf.h ;; vxworks)	thread_header=config/gthr-vxworks.h ;; win32)	thread_header=config/i386/gthr-win32.h ;; +    mcf)	thread_header=config/i386/gthr-mcf.h ;; esac AC_SUBST(thread_header) ]) diff --git a/gcc/config.gcc b/gcc/config.gcc index 858b878d4b3..6f745790d64 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -1722,6 +1722,9 @@ i[34567]86-*-mingw* | x86_64-*-mingw*) if test x$enable_threads = xposix ; then tm_file="${tm_file} i386/mingw-pthread.h" fi +	if test x$enable_threads = xmcf ; then +		tm_file="${tm_file} i386/mingw-mcfgthread.h" +	fi tm_file="${tm_file} i386/mingw32.h" # This makes the logic if mingw's or the w64 feature set has to be used case ${target} in diff --git a/gcc/config/i386/mingw-mcfgthread.h b/gcc/config/i386/mingw-mcfgthread.h new file mode 100644 index 00000000000..ec381a7798f --- /dev/null +++ b/gcc/config/i386/mingw-mcfgthread.h @@ -0,0 +1 @@ +#define TARGET_USE_MCFGTHREAD 1 diff --git a/gcc/config/i386/mingw-w64.h b/gcc/config/i386/mingw-w64.h index fe11333a2d1..cac85802f38 100644 --- a/gcc/config/i386/mingw-w64.h +++ b/gcc/config/i386/mingw-w64.h @@ -48,7 +48,7 @@ along with GCC; see the file COPYING3.  If not see "%{mwindows:-lgdi32 -lcomdlg32} "  "%{fvtable-verify=preinit:-lvtv -lpsapi;  fvtable-verify=std:-lvtv -lpsapi} "  -		 "-ladvapi32 -lshell32 -luser32 -lkernel32" +		 LIB_MCFGTHREAD "-ladvapi32 -lshell32 -luser32 -lkernel32" #undef SPEC_32 #undef SPEC_64 diff --git a/gcc/config/i386/mingw32.h b/gcc/config/i386/mingw32.h index e04818966fa..7b75a372506 100644 --- a/gcc/config/i386/mingw32.h +++ b/gcc/config/i386/mingw32.h @@ -32,6 +32,14 @@ along with GCC; see the file COPYING3.  If not see | MASK_STACK_PROBE | MASK_ALIGN_DOUBLE  | MASK_MS_BITFIELD_LAYOUT) +#ifndef TARGET_USE_MCFGTHREAD +#define CPP_MCFGTHREAD()  ((void)0) +#define LIB_MCFGTHREAD     "" +#else +#define CPP_MCFGTHREAD()  (builtin_define("__USING_MCFGTHREAD__")) +#define LIB_MCFGTHREAD     " -lmcfgthread " +#endif + /* See i386/crtdll.h for an alternative definition. _INTEGRAL_MAX_BITS is for compatibility with native compiler.  */ #define EXTRA_OS_CPP_BUILTINS()					 @@ -50,6 +58,7 @@ along with GCC; see the file COPYING3.  If not see builtin_define_std ("WIN64");				 builtin_define ("_WIN64");				 }							 +	CPP_MCFGTHREAD();	 }								 while (0) @@ -93,7 +102,7 @@ along with GCC; see the file COPYING3.  If not see "%{mwindows:-lgdi32 -lcomdlg32} "  "%{fvtable-verify=preinit:-lvtv -lpsapi;  fvtable-verify=std:-lvtv -lpsapi} "  -                 "-ladvapi32 -lshell32 -luser32 -lkernel32" +                 LIB_MCFGTHREAD "-ladvapi32 -lshell32 -luser32 -lkernel32" /* Weak symbols do not get resolved if using a Windows dll import lib. Make the unwind registration references strong undefs.  */ diff --git a/gcc/configure b/gcc/configure index 954673c1c43..6b5667f1c70 100755 --- a/gcc/configure +++ b/gcc/configure @@ -11702,7 +11702,7 @@ case ${enable_threads} in target_thread_file='single' ;; aix | dce | lynx | mipssde | posix | rtems |  -  single | tpf | vxworks | win32) +  single | tpf | vxworks | win32 | mcf) target_thread_file=${enable_threads} ;; *) diff --git a/gcc/configure.ac b/gcc/configure.ac index 4c65d441e72..e6fa04ada4f 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -1593,7 +1593,7 @@ case ${enable_threads} in target_thread_file='single' ;; aix | dce | lynx | mipssde | posix | rtems |  -  single | tpf | vxworks | win32) +  single | tpf | vxworks | win32 | mcf) target_thread_file=${enable_threads} ;; *) diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt index eab2765d7fd..f4058b6f4a2 100644 --- a/libatomic/configure.tgt +++ b/libatomic/configure.tgt @@ -124,7 +124,7 @@ case "${target}" in *-*-mingw*) # OS support for atomic primitives. case ${target_thread_file} in -          win32) +          win32 | mcf) config_path="${config_path} mingw" ;; posix) diff --git a/libgcc/config.host b/libgcc/config.host index 2b139b8befc..fb18d2a042e 100644 --- a/libgcc/config.host +++ b/libgcc/config.host @@ -712,6 +712,9 @@ i[34567]86-*-mingw*) posix) tmake_file="i386/t-mingw-pthread $tmake_file" ;; +	  mcf) +	    tmake_file="i386/t-mingw-mcfgthread $tmake_file" +	    ;; esac # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h if test x$ac_cv_sjlj_exceptions = xyes; then @@ -736,6 +739,9 @@ x86_64-*-mingw*) posix) tmake_file="i386/t-mingw-pthread $tmake_file" ;; +	  mcf) +	    tmake_file="i386/t-mingw-mcfgthread $tmake_file" +	    ;; esac # This has to match the logic for DWARF2_UNWIND_INFO in gcc/config/i386/cygming.h if test x$ac_cv_sjlj_exceptions = xyes; then diff --git a/libgcc/config/i386/gthr-mcf.h b/libgcc/config/i386/gthr-mcf.h new file mode 100644 index 00000000000..5ea2908361f --- /dev/null +++ b/libgcc/config/i386/gthr-mcf.h @@ -0,0 +1 @@ +#include <mcfgthread/gthread.h> diff --git a/libgcc/config/i386/t-mingw-mcfgthread b/libgcc/config/i386/t-mingw-mcfgthread new file mode 100644 index 00000000000..4b9b10e32d6 --- /dev/null +++ b/libgcc/config/i386/t-mingw-mcfgthread @@ -0,0 +1,2 @@ +SHLIB_PTHREAD_CFLAG = +SHLIB_PTHREAD_LDFLAG = -lmcfgthread diff --git a/libgcc/configure b/libgcc/configure index e7d6c75a6f7..664d0f852c4 100644 --- a/libgcc/configure +++ b/libgcc/configure @@ -5077,6 +5077,7 @@ case $target_thread_file in tpf)	thread_header=config/s390/gthr-tpf.h ;; vxworks)	thread_header=config/gthr-vxworks.h ;; win32)	thread_header=config/i386/gthr-win32.h ;; +    mcf)	thread_header=config/i386/gthr-mcf.h ;; esac diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index b5ae4213f94..c484d3aee5f 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -15177,6 +15177,7 @@ case $target_thread_file in tpf)	thread_header=config/s390/gthr-tpf.h ;; vxworks)	thread_header=config/gthr-vxworks.h ;; win32)	thread_header=config/i386/gthr-win32.h ;; +    mcf)	thread_header=config/i386/gthr-mcf.h ;; esac diff --git a/libstdc++-v3/libsupc++/atexit_thread.cc b/libstdc++-v3/libsupc++/atexit_thread.cc index e6520c1094f..3d6907796dd 100644 --- a/libstdc++-v3/libsupc++/atexit_thread.cc +++ b/libstdc++-v3/libsupc++/atexit_thread.cc @@ -25,6 +25,22 @@ #include <cstdlib> #include <new> #include "bits/gthr.h" + +#ifdef __USING_MCFGTHREAD__ + +#include <mcfgthread/gthread.h> + +extern "C" int +__cxxabiv1::__cxa_thread_atexit (void (*dtor)(void *), +				 void *obj, void *dso_handle) +  _GLIBCXX_NOTHROW +{ +  return ::_MCFCRT_AtThreadExit((void (*)(_MCFCRT_STD intptr_t))dtor, (_MCFCRT_STD intptr_t)obj) ? 0 : -1; +  (void)dso_handle; +} + +#else // __USING_MCFGTHREAD__ + #ifdef _GLIBCXX_THREAD_ATEXIT_WIN32 #define WIN32_LEAN_AND_MEAN #include <windows.h> @@ -163,3 +179,5 @@ __cxxabiv1::__cxa_thread_atexit (void (*dtor)(void *), void *obj, void */*dso_ha } #endif /* _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL */ + +#endif // __USING_MCFGTHREAD__ diff --git a/libstdc++-v3/libsupc++/guard.cc b/libstdc++-v3/libsupc++/guard.cc index 9b617998ffe..a441fdbb616 100644 --- a/libstdc++-v3/libsupc++/guard.cc +++ b/libstdc++-v3/libsupc++/guard.cc @@ -28,6 +28,27 @@ #include <cxxabi.h> #include <exception> #include <new> + +#ifdef __USING_MCFGTHREAD__ + +#include <mcfgthread/gthread.h> + +namespace __cxxabiv1 { + +extern "C" int __cxa_guard_acquire(__guard *g){ +	return ::_MCFCRT_WaitForOnceFlagForever((::_MCFCRT_OnceFlag *)g) == ::_MCFCRT_kOnceResultInitial; +} +extern "C" void __cxa_guard_abort(__guard *g) throw() { +	::_MCFCRT_SignalOnceFlagAsAborted((::_MCFCRT_OnceFlag *)g); +} +extern "C" void __cxa_guard_release(__guard *g) throw() { +	::_MCFCRT_SignalOnceFlagAsFinished((::_MCFCRT_OnceFlag *)g); +} + +} + +#else // __USING_MCFGTHREAD__ + #include <ext/atomicity.h> #include <ext/concurrence.h> #if defined(__GTHREADS) && defined(__GTHREAD_HAS_COND)  @@ -424,3 +445,5 @@ namespace __cxxabiv1 #endif } } + +#endif -- 2.12.1 </ins>

Related discussion:
text: Describe the bug is when building for MinGW, however an equivalent GCC 10 patch file doesn't exist. I tried looking for a GCC 10 patch on the master branch of , but the folder that contained the patches no longer exists. GCC9 is still currently the default on master, but this will break everything under MinGW the next time staging-next is merged to master. See Support for was originally in To Reproduce Steps to reproduce the behavior: Notify maintainers Metadata system: host os: multi-user?: sandbox: version: channels(root): channels(kira): nixpkgs: Maintainer information:
It has been moved to to upstream migration. Neither of these repos is stable; their master branches are constantly rebased on upstream and force-pushed.