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| author | Jakub Jelinek <jakub@redhat.com> | 2008-01-08 17:14:49 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2008-01-08 17:14:49 +0100 |
| commit | 0f3e711eef24f6b00e7dc462288c064d68a9ec43 (patch) | |
| tree | 8424b6e62d8e9172cc8b7a69773bcbcc62b63024 /libstdc++-v3/config/cpu | |
| parent | c90eee444ccd2d39ac22b55e0b6516d842590bfb (diff) | |
| download | gcc-0f3e711eef24f6b00e7dc462288c064d68a9ec43.zip gcc-0f3e711eef24f6b00e7dc462288c064d68a9ec43.tar.gz gcc-0f3e711eef24f6b00e7dc462288c064d68a9ec43.tar.bz2 | |
configure.ac (--enable-linux-futex): Add new configure option.
libstdc++-v3/
* configure.ac (--enable-linux-futex): Add new configure option.
(HAVE_LINUX_FUTEX): New AC_DEFINE.
* Makefile.in: Rebuilt.
* aclocal.m4: Rebuilt.
* configure: Rebuilt.
* config.h.in: Rebuilt.
* config/cpu/generic/cxxabi_tweaks.h (_GLIBCXX_GUARD_BIT,
_GLIBCXX_GUARD_PENDING_BIT, _GLIBCXX_GUARD_WAITING_BIT): Define.
* config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_BIT,
_GLIBCXX_GUARD_PENDING_BIT, _GLIBCXX_GUARD_WAITING_BIT): Define.
* libsupc++/guard.cc: Include climits and syscall.h.
(_GLIBCXX_USE_FUTEX): Define if futex syscall and atomic builtins
are supported.
(_GLIBCXX_FUTEX_WAIT, _GLIBCXX_FUTEX_WAKE): Likewise.
(__guard_test_bit): New static inline.
(__cxa_guard_acquire, __cxa_guard_release, __cxa_guard_abort): Use
atomic builtins and futex syscall if _GLIBCXX_USE_FUTEX.
config/
* futex.m4: New file.
libgomp/
* configure.ac: Move futex checking into ../config/futex.m4.
* configure: Rebuilt.
* aclocal.m4: Rebuilt.
* Makefile.in: Rebuilt.
* configure.tgt: Rename have_tls to gcc_cv_have_tls to match
2007-10-15 ../config/tls.m4 change.
From-SVN: r131399
Diffstat (limited to 'libstdc++-v3/config/cpu')
| -rw-r--r-- | libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h | 8 | ||||
| -rw-r--r-- | libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h | 5 |
2 files changed, 11 insertions, 2 deletions
diff --git a/libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h b/libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h index e56c200..b6b88e4 100644 --- a/libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h +++ b/libstdc++-v3/config/cpu/arm/cxxabi_tweaks.h @@ -1,6 +1,6 @@ // Control various target specific ABI tweaks. ARM version. -// Copyright (C) 2004, 2006 Free Software Foundation, Inc. +// Copyright (C) 2004, 2006, 2008 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the @@ -46,6 +46,9 @@ namespace __cxxabiv1 // guard variable. */ #define _GLIBCXX_GUARD_TEST(x) ((*(x) & 1) != 0) #define _GLIBCXX_GUARD_SET(x) *(x) = 1 +#define _GLIBCXX_GUARD_BIT 1 +#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) +#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) typedef int __guard; // We also want the element size in array cookies. @@ -62,6 +65,9 @@ namespace __cxxabiv1 // The generic ABI uses the first byte of a 64-bit guard variable. #define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) #define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 +#define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) +#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) +#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) __extension__ typedef int __guard __attribute__((mode (__DI__))); // __cxa_vec_ctor has void return type. diff --git a/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h b/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h index 95fd306..2859e83 100644 --- a/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h +++ b/libstdc++-v3/config/cpu/generic/cxxabi_tweaks.h @@ -1,6 +1,6 @@ // Control various target specific ABI tweaks. Generic version. -// Copyright (C) 2004, 2006 Free Software Foundation, Inc. +// Copyright (C) 2004, 2006, 2008 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the @@ -44,6 +44,9 @@ namespace __cxxabiv1 // The generic ABI uses the first byte of a 64-bit guard variable. #define _GLIBCXX_GUARD_TEST(x) (*(char *) (x) != 0) #define _GLIBCXX_GUARD_SET(x) *(char *) (x) = 1 +#define _GLIBCXX_GUARD_BIT __guard_test_bit (0, 1) +#define _GLIBCXX_GUARD_PENDING_BIT __guard_test_bit (1, 1) +#define _GLIBCXX_GUARD_WAITING_BIT __guard_test_bit (2, 1) __extension__ typedef int __guard __attribute__((mode (__DI__))); // __cxa_vec_ctor has void return type. |