From: LIU Hao <lh_mouse@126.com>
To: gcc-patches@gcc.gnu.org
Cc: 10walls@gmail.com
Subject: Re: Adding a new thread model to GCC
Date: Tue, 11 Oct 2022 21:22:37 +0800 [thread overview]
Message-ID: <0e667bcd-f8e0-2241-ee88-7a7cc883cba5@126.com> (raw)
In-Reply-To: <f2261195-8e7e-7c1d-946f-657ca9e866dc@126.com>
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在 2022-10-10 23:56, LIU Hao 写道:
> 在 2022-10-04 20:44, LIU Hao 写道:
>> Attached are revised patches. These are exported from trunk.
>>
>
> Revised further. The patch for libgfortran has been committed to trunk today, so I include only the
> other two.
>
> * In the second patch, a space character has been inserted after
> `(int)` for clearness.
>
> * The macro controlling how to build GCC itself has been renamed to
> `TARGET_USING_MCFGTHREAD` for consistency.
>
> * Checks against `TARGET_USING_MCFGTHREAD` have been updated in a
> more friendly way.
>
> * When not using mcfgthread, NTDLL is no longer a default library.
> Although all recent Windows versions are based on the NT kernel,
> there could still be people who want to target 9x or CE; thus
> NTDLL is only added when it is potentially necessary, for example
> when linking against the static libgcc.
>
>
Attached is the (previous) third patch, with configure scripts regenerated.
--
Best regards,
LIU Hao
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From c32690fa4878d8824a0e05e54f614a8dd9ed68b7 Mon Sep 17 00:00:00 2001
From: LIU Hao <lh_mouse@126.com>
Date: Sat, 16 Apr 2022 00:46:23 +0800
Subject: [PATCH 2/2] gcc: Add 'mcf' thread model support from mcfgthread
This patch adds the new thread model `mcf`, which implements mutexes
and condition variables with the mcfgthread library.
Source code for mcfgthread is available at <https://github.com/lhmouse/mcfgthread>.
config/ChangeLog:
* gthr.m4 (GCC_AC_THREAD_HEADER): Add new case for `mcf` thread
model
gcc/config/ChangeLog:
* i386/mingw-mcfgthread.h: New file
* i386/mingw32.h: Add builtin macro and default libraries for
mcfgthread when thread model is `mcf`
gcc/ChangeLog:
* config.gcc: Include 'i386/mingw-mcfgthread.h' when thread model
is `mcf`
* configure.ac: Recognize `mcf` as a valid thread model
* configure: Regenerate
libatomic/ChangeLog:
* configure.tgt: Add new case for `mcf` thread model
libgcc/ChangeLog:
* config.host: Add new cases for `mcf` thread model
* config/i386/gthr-mcf.h: New file
* config/i386/t-mingw-mcfgthread: New file
* config/i386/t-slibgcc-cygming: Add mcfgthread for libgcc DLL
* configure: Regenerate
libstdc++-v3/ChangeLog:
* libsupc++/atexit_thread.cc (__cxa_thread_atexit): Use
implementation from mcfgthread if available
* libsupc++/guard.cc (__cxa_guard_acquire, __cxa_guard_release,
__cxa_guard_abort): Use implementations from mcfgthread if
available
* configure: Regenerate
---
config/gthr.m4 | 1 +
gcc/config.gcc | 3 +++
gcc/config/i386/mingw-mcfgthread.h | 1 +
gcc/config/i386/mingw32.h | 13 ++++++++++-
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 | 1 +
libgcc/config/i386/t-slibgcc-cygming | 6 ++++-
libgcc/configure | 1 +
libstdc++-v3/configure | 13 ++++++-----
libstdc++-v3/libsupc++/atexit_thread.cc | 20 ++++++++++++++++
libstdc++-v3/libsupc++/guard.cc | 31 +++++++++++++++++++++++++
15 files changed, 92 insertions(+), 11 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 4b937306ad08..11996247f150 100644
--- a/config/gthr.m4
+++ b/config/gthr.m4
@@ -22,6 +22,7 @@ case $1 in
tpf) thread_header=config/s390/gthr-tpf.h ;;
vxworks) thread_header=config/gthr-vxworks.h ;;
win32) thread_header=config/i386/gthr-win32.h ;;
+ mcf) thread_header=config/i386/gthr-mcf.h ;;
esac
AC_SUBST(thread_header)
])
diff --git a/gcc/config.gcc b/gcc/config.gcc
index eec544ff1bac..1f6adea1ab9b 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2091,6 +2091,9 @@ i[34567]86-*-mingw* | x86_64-*-mingw*)
if test x$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 000000000000..7d4eda3ed494
--- /dev/null
+++ b/gcc/config/i386/mingw-mcfgthread.h
@@ -0,0 +1 @@
+#define TARGET_USING_MCFGTHREAD 1
diff --git a/gcc/config/i386/mingw32.h b/gcc/config/i386/mingw32.h
index d3ca0cd0279d..b5f31c3da0ac 100644
--- a/gcc/config/i386/mingw32.h
+++ b/gcc/config/i386/mingw32.h
@@ -32,6 +32,10 @@ along with GCC; see the file COPYING3. If not see
| MASK_STACK_PROBE | MASK_ALIGN_DOUBLE \
| MASK_MS_BITFIELD_LAYOUT)
+#ifndef TARGET_USING_MCFGTHREAD
+#define TARGET_USING_MCFGTHREAD 0
+#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 +54,8 @@ along with GCC; see the file COPYING3. If not see
builtin_define_std ("WIN64"); \
builtin_define ("_WIN64"); \
} \
+ if (TARGET_USING_MCFGTHREAD) \
+ builtin_define ("__USING_MCFGTHREAD__"); \
} \
while (0)
@@ -181,11 +187,16 @@ along with GCC; see the file COPYING3. If not see
#else
#define SHARED_LIBGCC_SPEC " -lgcc "
#endif
+#if TARGET_USING_MCFGTHREAD
+#define MCFGTHREAD_SPEC " -lmcfgthread -lkernel32 -lntdll "
+#else
+#define MCFGTHREAD_SPEC ""
+#endif
#undef REAL_LIBGCC_SPEC
#define REAL_LIBGCC_SPEC \
"%{mthreads:-lmingwthrd} -lmingw32 \
" SHARED_LIBGCC_SPEC " \
- -lmoldname -lmingwex -lmsvcrt -lkernel32"
+ -lmoldname -lmingwex -lmsvcrt -lkernel32 " MCFGTHREAD_SPEC
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
diff --git a/gcc/configure b/gcc/configure
index b512580414a6..421093f5868c 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -12900,7 +12900,7 @@ 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 e48fcbfe18ea..e1ef2ecf0267 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1991,7 +1991,7 @@ 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 33f8c91ce771..86a59475b6e7 100644
--- a/libatomic/configure.tgt
+++ b/libatomic/configure.tgt
@@ -159,7 +159,7 @@ 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 9dcc2538dc86..44a8218a31d3 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -825,6 +825,9 @@ 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
@@ -849,6 +852,9 @@ 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 000000000000..58131bb7ca92
--- /dev/null
+++ b/libgcc/config/i386/gthr-mcf.h
@@ -0,0 +1 @@
+#include <mcfgthread/gthr.h>
diff --git a/libgcc/config/i386/t-mingw-mcfgthread b/libgcc/config/i386/t-mingw-mcfgthread
new file mode 100644
index 000000000000..c5b817f09b71
--- /dev/null
+++ b/libgcc/config/i386/t-mingw-mcfgthread
@@ -0,0 +1 @@
+SHLIB_MCFGTHREAD_LIBS = -lmcfgthread -lkernel32 -lntdll
diff --git a/libgcc/config/i386/t-slibgcc-cygming b/libgcc/config/i386/t-slibgcc-cygming
index 6236c78e4668..6871498cf60e 100644
--- a/libgcc/config/i386/t-slibgcc-cygming
+++ b/libgcc/config/i386/t-slibgcc-cygming
@@ -27,6 +27,9 @@ endif
ifndef SHLIB_PTHREAD_LDFLAG
SHLIB_PTHREAD_LDFLAG =
endif
+ifndef SHLIB_MCFGTHREAD_LIBS
+SHLIB_MCFGTHREAD_LIBS =
+endif
SHLIB_LINK = $(LN_S) -f $(SHLIB_MAP) $(SHLIB_MAP).def && \
if [ ! -d $(SHLIB_DIR) ]; then \
@@ -37,7 +40,8 @@ SHLIB_LINK = $(LN_S) -f $(SHLIB_MAP) $(SHLIB_MAP).def && \
$(SHLIB_MAP).def \
-Wl,--out-implib,$(SHLIB_DIR)/$(SHLIB_IMPLIB).tmp \
-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
- $(SHLIB_OBJS) ${SHLIB_PTHREAD_LDFLAG} $(SHLIB_LC) && \
+ $(SHLIB_OBJS) ${SHLIB_PTHREAD_LDFLAG} $(SHLIB_LC) \
+ $(SHLIB_MCFGTHREAD_LIBS) && \
if [ -f $(SHLIB_DIR)/$(SHLIB_SONAME) ]; then \
mv -f $(SHLIB_DIR)/$(SHLIB_SONAME) \
$(SHLIB_DIR)/$(SHLIB_SONAME).backup; \
diff --git a/libgcc/configure b/libgcc/configure
index 61f3ace2891c..be5d45f1755c 100755
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -5699,6 +5699,7 @@ 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 7ead77a5c800..08b0c4e7fcfd 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -15802,6 +15802,7 @@ 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
@@ -16009,7 +16010,7 @@ $as_echo "$glibcxx_cv_atomic_long_long" >&6; }
# Fake what AC_TRY_COMPILE does.
cat > conftest.$ac_ext << EOF
-#line 16012 "configure"
+#line 16013 "configure"
int main()
{
typedef bool atomic_type;
@@ -16044,7 +16045,7 @@ $as_echo "$glibcxx_cv_atomic_bool" >&6; }
rm -f conftest*
cat > conftest.$ac_ext << EOF
-#line 16047 "configure"
+#line 16048 "configure"
int main()
{
typedef short atomic_type;
@@ -16079,7 +16080,7 @@ $as_echo "$glibcxx_cv_atomic_short" >&6; }
rm -f conftest*
cat > conftest.$ac_ext << EOF
-#line 16082 "configure"
+#line 16083 "configure"
int main()
{
// NB: _Atomic_word not necessarily int.
@@ -16115,7 +16116,7 @@ $as_echo "$glibcxx_cv_atomic_int" >&6; }
rm -f conftest*
cat > conftest.$ac_ext << EOF
-#line 16118 "configure"
+#line 16119 "configure"
int main()
{
typedef long long atomic_type;
@@ -16271,7 +16272,7 @@ $as_echo "mutex" >&6; }
# unnecessary for this test.
cat > conftest.$ac_ext << EOF
-#line 16274 "configure"
+#line 16275 "configure"
int main()
{
_Decimal32 d1;
@@ -16313,7 +16314,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
# unnecessary for this test.
cat > conftest.$ac_ext << EOF
-#line 16316 "configure"
+#line 16317 "configure"
template<typename T1, typename T2>
struct same
{ typedef T2 type; };
diff --git a/libstdc++-v3/libsupc++/atexit_thread.cc b/libstdc++-v3/libsupc++/atexit_thread.cc
index a2693d0424e1..2f936ab02ce2 100644
--- a/libstdc++-v3/libsupc++/atexit_thread.cc
+++ b/libstdc++-v3/libsupc++/atexit_thread.cc
@@ -25,6 +25,24 @@
#include <cstdlib>
#include <new>
#include "bits/gthr.h"
+
+#ifdef __USING_MCFGTHREAD__
+
+#include <mcfgthread/cxa.h>
+
+namespace __cxxabiv1 {
+
+extern "C" int
+__cxa_thread_atexit (void (_GLIBCXX_CDTOR_CALLABI *dtor)(void *),
+ void *obj, void *dso_handle) _GLIBCXX_NOTHROW
+{
+ return __MCF_cxa_thread_atexit (dtor, obj, dso_handle);
+}
+
+} // namespace __cxxabiv1
+
+#else // __USING_MCFGTHREAD__
+
#ifdef _GLIBCXX_THREAD_ATEXIT_WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
@@ -173,3 +191,5 @@ __cxxabiv1::__cxa_thread_atexit (void (_GLIBCXX_CDTOR_CALLABI *dtor)(void *),
}
#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 abb57117cdfd..0f81a22c6845 100644
--- a/libstdc++-v3/libsupc++/guard.cc
+++ b/libstdc++-v3/libsupc++/guard.cc
@@ -28,6 +28,35 @@
#include <cxxabi.h>
#include <exception>
#include <new>
+
+#ifdef __USING_MCFGTHREAD__
+
+#include <mcfgthread/cxa.h>
+
+namespace __cxxabiv1 {
+
+extern "C" int
+__cxa_guard_acquire (__guard* g) _GLIBCXX_NOTHROW
+ {
+ return __MCF_cxa_guard_acquire(g);
+ }
+
+extern "C" void
+__cxa_guard_release (__guard* g) _GLIBCXX_NOTHROW
+ {
+ __MCF_cxa_guard_release(g);
+ }
+
+extern "C" void
+__cxa_guard_abort (__guard* g) _GLIBCXX_NOTHROW
+ {
+ __MCF_cxa_guard_abort(g);
+ }
+
+} // namespace __cxxabiv1
+
+#else // __USING_MCFGTHREAD__
+
#include <ext/atomicity.h>
#include <ext/concurrence.h>
#include <bits/atomic_lockfree_defines.h>
@@ -458,3 +487,5 @@ namespace __cxxabiv1
#endif
}
}
+
+#endif // __USING_MCFGTHREAD__
--
2.37.3
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next prev parent reply other threads:[~2022-10-11 13:22 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-01 18:34 LIU Hao
2022-10-01 20:02 ` Bernhard Reutner-Fischer
2022-10-02 12:54 ` LIU Hao
2022-10-03 5:03 ` Bernhard Reutner-Fischer
2022-10-04 8:06 ` LIU Hao
2022-10-04 19:45 ` Bernhard Reutner-Fischer
2022-10-04 12:44 ` LIU Hao
2022-10-04 13:13 ` Xi Ruoyao
2022-10-04 13:45 ` LIU Hao
2022-10-05 1:23 ` Xi Ruoyao
2022-10-10 15:56 ` LIU Hao
2022-10-11 13:22 ` LIU Hao [this message]
2022-10-14 9:39 ` Jonathan Yong
2022-10-19 13:55 ` Jonathan Yong
2022-10-19 19:53 ` Bernhard Reutner-Fischer
2022-10-20 1:25 ` LIU Hao
2022-10-21 9:58 ` Jonathan Wakely
2022-10-21 10:09 ` i.nixman
2022-10-21 10:48 ` Jonathan Wakely
2022-10-21 10:55 ` i.nixman
2022-10-21 11:36 ` LIU Hao
2022-10-21 11:54 ` i.nixman
2022-10-21 12:19 ` LIU Hao
2022-10-21 12:34 ` i.nixman
2022-10-24 3:40 ` LIU Hao
2022-10-24 20:50 ` Jacek Caban
2022-10-21 12:13 ` Jacek Caban
2022-10-21 12:29 ` LIU Hao
2022-10-21 12:40 ` Jacek Caban
2022-10-21 11:44 ` Eric Botcazou
2022-10-21 11:55 ` i.nixman
2022-10-21 12:30 ` Jacek Caban
2022-10-23 0:36 ` NightStrike
2022-10-24 6:53 ` i.nixman
2022-10-24 8:15 ` Eric Botcazou
2022-10-24 8:20 ` i.nixman
2022-10-31 9:18 ` Eric Botcazou
2022-10-31 15:22 ` i.nixman
2022-12-18 11:14 ` Jonathan Yong
2022-11-01 5:22 ` i.nixman
2022-11-01 9:09 ` Eric Botcazou
2022-11-02 12:05 ` i.nixman
2022-11-02 21:27 ` Eric Botcazou
2022-11-02 21:40 ` i.nixman
2022-12-16 17:18 ` Jonathan Wakely
2022-12-16 19:20 ` Eric Botcazou
2022-12-22 12:21 ` Jonathan Yong
2022-12-22 12:28 ` i.nixman
2022-12-23 23:59 ` Jonathan Yong
2022-12-24 5:58 ` NightStrike
2022-12-24 6:27 ` i.nixman
2022-12-24 13:50 ` i.nixman
2022-12-24 15:42 ` i.nixman
2022-12-24 15:57 ` i.nixman
2022-12-24 21:22 ` i.nixman
2022-12-25 1:10 ` Jonathan Yong
2023-01-09 21:56 ` Eric Botcazou
2022-12-24 6:22 ` i.nixman
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