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nixpkgs/pkgs/development/compilers/gcc/11/Added-mcf-thread-model-support-from-mcfgthread.patch
Sergei Trofimovich cb03b37927 pkgsCross.mingw32.gcc11Stdenv: update mcfgthread patches for gcc-11 
Without the change mingw32-gcc fails to build as:

    In file included from /build/gcc-11.2.0/libstdc++-v3/libsupc++/cxxabi.h:49,
                     from ../../../../gcc-11.2.0/libstdc++-v3/libsupc++/atexit_thread.cc:24:
    ../../../../gcc-11.2.0/libstdc++-v3/libsupc++/atexit_thread.cc:36:3: error: 'int __cxxabiv1::__cxa_thread_atexit(void (*)(void*), void*, void*)' should have been declared inside '__cxxabiv1'
       36 |   _GLIBCXX_NOTHROW
          |   ^~~~~~~~~~~~~~~~
    ../../../../gcc-11.2.0/libstdc++-v3/libsupc++/atexit_thread.cc:34:1: error: conflicting declaration of C function 'int __cxxabiv1::__cxa_thread_atexit(void (*)(void*), void*, void*)'
       34 | __cxxabiv1::__cxa_thread_atexit (void (*dtor)(void *),
          | ^~~~~~~~~~

The change follows upstream change introduced in
https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=7fc0f78c3f43af1967cb7b1ee8f4947f3b890aa2
2022-05-01 15:34:22 +01:00

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From 86f2f767ddffd9f7c6f1470b987ae7b0d251b988 Mon Sep 17 00:00:00 2001
From: Liu Hao <lh_mouse@126.com>
Date: Wed, 25 Apr 2018 21:54:19 +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 +++++++++++++++++++++++
libstdc++-v3/src/c++11/thread.cc | 9 +++++++++
16 files changed, 80 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 $1 in
tpf) thread_header=config/s390/gthr-tpf.h ;;
vxworks) thread_header=config/gthr-vxworks.h ;;
win32) thread_header=config/i386/gthr-win32.h ;;
+ mcf) thread_header=config/i386/gthr-mcf.h ;;
esac
AC_SUBST(thread_header)
])
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 46a9029acec..112c24e95a3 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1758,6 +1758,9 @@ i[34567]86-*-mingw* | x86_64-*-mingw*)
if test x$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 484dc7a9e9f..a15bbeea500 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 0612b87199a..76cea94f3b7 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 6121e163259..52f0e00efe6 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -11693,7 +11693,7 @@ 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 b066cc609e1..4ecdba88de7 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1612,7 +1612,7 @@ 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 ea8c34f8c71..23134ad7363 100644
--- a/libatomic/configure.tgt
+++ b/libatomic/configure.tgt
@@ -145,7 +145,7 @@ 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 11b4acaff55..9fbd38650bd 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -737,6 +737,9 @@ 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
@@ -761,6 +764,9 @@ 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 b2f3f870844..eff889dc3b3 100644
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -5451,6 +5451,7 @@ 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 ba094be6f15..979a5ab9ace 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -15187,6 +15187,7 @@ 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 de920d714c6..665fb74bd6b 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>
+namespace __cxxabiv1 {
+extern "C" int
+__cxa_thread_atexit (void (_GLIBCXX_CDTOR_CALLABI *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>
@@ -167,3 +183,5 @@ __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 3a2ec3ad0d6..8b4cc96199b 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>
#include <bits/atomic_lockfree_defines.h>
@@ -425,3 +446,5 @@ namespace __cxxabiv1
#endif
}
}
+
+#endif
diff --git a/libstdc++-v3/src/c++11/thread.cc b/libstdc++-v3/src/c++11/thread.cc
index 8238817c2e9..0c6a1f85f6f 100644
--- a/libstdc++-v3/src/c++11/thread.cc
+++ b/libstdc++-v3/src/c++11/thread.cc
@@ -55,6 +55,15 @@ static inline int get_nprocs()
#elif defined(_GLIBCXX_USE_SC_NPROC_ONLN)
# include <unistd.h>
# define _GLIBCXX_NPROCS sysconf(_SC_NPROC_ONLN)
+#elif defined(_WIN32)
+# include <windows.h>
+static inline int get_nprocs()
+{
+ SYSTEM_INFO sysinfo;
+ GetSystemInfo(&sysinfo);
+ return (int)sysinfo.dwNumberOfProcessors;
+}
+# define _GLIBCXX_NPROCS get_nprocs()
#else
# define _GLIBCXX_NPROCS 0
#endif
--
2.17.0
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