mirror of
https://github.com/pmmp/musl-cross-make.git
synced 2025-02-11 21:20:48 +00:00
7ea487218f
new patch: 0017-c++-abi-break.diff fixes a C++ ABI break regression. 0010-static-pie-support.diff was removed as it doesn't apply anymore, and forward-porting it requires arcane knowledge of GCC details. the patches 0018 and 0019 have been copied from GCC 7.3.0. the static pie patch from GCC 6.4.0, renumbered 0020, depends on the reversions they make.
48 lines
1.7 KiB
Diff
48 lines
1.7 KiB
Diff
diff --git a/libcilkrts/runtime/os-unix.c b/libcilkrts/runtime/os-unix.c
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index cb582dd..e43d7d5 100644
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--- a/libcilkrts/runtime/os-unix.c
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+++ b/libcilkrts/runtime/os-unix.c
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@@ -51,6 +51,7 @@
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#if defined __linux__
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# include <sys/sysinfo.h>
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# include <sys/syscall.h>
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+# include <sched.h>
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#elif defined __APPLE__
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# include <sys/sysctl.h>
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// Uses sysconf(_SC_NPROCESSORS_ONLN) in verbose output
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@@ -400,28 +401,19 @@ COMMON_SYSDEP void __cilkrts_sleep(void)
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COMMON_SYSDEP void __cilkrts_yield(void)
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{
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-#if __APPLE__ || __FreeBSD__ || __VXWORKS__
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- // On MacOS, call sched_yield to yield quantum. I'm not sure why we
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- // don't do this on Linux also.
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- sched_yield();
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-#elif defined(__DragonFly__)
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- // On DragonFly BSD, call sched_yield to yield quantum.
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- sched_yield();
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-#elif defined(__MIC__)
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+#if defined(__MIC__)
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// On MIC, pthread_yield() really trashes things. Arch's measurements
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// showed that calling _mm_delay_32() (or doing nothing) was a better
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// option. Delaying 1024 clock cycles is a reasonable compromise between
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// giving up the processor and latency starting up when work becomes
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// available
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_mm_delay_32(1024);
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-#elif defined(__ANDROID__) || (defined(__sun__) && defined(__svr4__))
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- // On Android and Solaris, call sched_yield to yield quantum. I'm not
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- // sure why we don't do this on Linux also.
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- sched_yield();
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-#else
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- // On Linux, call pthread_yield (which in turn will call sched_yield)
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- // to yield quantum.
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+#elif defined(__sun__) && !defined(__svr4__)
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+ // On old SunOS call pthread_yield to yield a quantum.
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pthread_yield();
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+#else
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+ // On other platforms call sched_yield to yield a quantum.
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+ sched_yield();
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#endif
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}
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