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| author | Jakub Jelinek <jakub@redhat.com> | 2013-05-24 20:08:42 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2013-05-24 20:08:42 +0200 |
| commit | 2e8a9734c0bf678c090e7137d7ac8185a7ea08cc (patch) | |
| tree | 22fc106b86783828d282e19d009658a223244b66 /libstdc++-v3/configure | |
| parent | 7f5d76fb976770ec90deaf562ba7cf566bf9b0be (diff) | |
| download | gcc-2e8a9734c0bf678c090e7137d7ac8185a7ea08cc.tar.gz | |
chrono.cc: If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, include unistd.h and sys/syscall.h.
* src/c++11/chrono.cc: If _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL,
include unistd.h and sys/syscall.h. If _GLIBCXX_COMPATIBILITY_CXX0X,
don't define system_clock::is_steady, system_clock::now() and
steady_clock::is_steady.
(std::chrono::system_clock::now()): If
_GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, call
syscall (SYS_clock_gettime, ...) instead of clock_gettime (...).
(std::chrono::system_clock::now()): Likewise. Add weak attribute
if _GLIBCXX_COMPATIBILITY_CXX0X and compatibility-chrono.cc will
be non-empty.
* src/Makefile.am (cxx11_sources): Add compatibility-chrono.cc.
(compatibility-chrono.lo, compatibility-chrono.o): New goals.
* src/c++11/compatibility-chrono.cc: New file.
* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): On linux*, check for
syscall (SYS_clock_gettime, CLOCK_MONOTONIC, &tp).
* testsuite/util/testsuite_abi.cc (check_version): Add
GLIBCXX_3.4.20 version and make it the latest.
* config/abi/pre/gnu.ver (_ZNSt6chrono12steady_clock3nowEv): Export
also @@GLIBCXX_3.4.19. Move all symbols so far added for GCC 4.9 to
@@GLIBCXX_3.4.20 instead.
* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
Regenerated.
* config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt:
Regenerated.
* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
Regenerated.
* config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/s390-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Regenerated.
* config/abi/post/solaris2.10/baseline_symbols.txt: Regenerated.
* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Regenerated.
* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt:
Regenerated.
* config/abi/post/solaris2.9/baseline_symbols.txt: Regenerated.
* config/abi/post/solaris2.9/sparcv9/baseline_symbols.txt: Regenerated.
* config.h.in: Regenerated.
* src/Makefile.in: Regenerated.
* configure: Regenerated.
From-SVN: r199307
Diffstat (limited to 'libstdc++-v3/configure')
| -rwxr-xr-x | libstdc++-v3/configure | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index 29344f06ed2..994fbe320e0 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -19883,6 +19883,48 @@ $as_echo "$ac_has_nanosleep" >&6; } fi fi + if test x"$ac_has_clock_monotonic" != x"yes"; then + case ${target_os} in + linux*) + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime syscall" >&5 +$as_echo_n "checking for clock_gettime syscall... " >&6; } + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <unistd.h> + #include <time.h> + #include <sys/syscall.h> + +int +main () +{ +#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK) + timespec tp; + #endif + syscall(SYS_clock_gettime, CLOCK_MONOTONIC, &tp); + syscall(SYS_clock_gettime, CLOCK_REALTIME, &tp); + + ; + return 0; +} +_ACEOF +if ac_fn_cxx_try_compile "$LINENO"; then : + ac_has_clock_monotonic_syscall=yes +else + ac_has_clock_monotonic_syscall=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_clock_monotonic_syscall" >&5 +$as_echo "$ac_has_clock_monotonic_syscall" >&6; } + if test x"$ac_has_clock_monotonic_syscall" = x"yes"; then + +$as_echo "#define _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL 1" >>confdefs.h + + ac_has_clock_monotonic=yes + ac_has_clock_realtime=yes + fi;; + esac + fi + if test x"$ac_has_clock_monotonic" = x"yes"; then $as_echo "#define _GLIBCXX_USE_CLOCK_MONOTONIC 1" >>confdefs.h |