6f1c7ff607
This is the first part of an effort to allow bootstrapping openjdk without downloading any binaries. The next part will be an openjdk7 package that will be used to bootstrap openjdk8. After that, we can proceed to add the missing parts to go all the way up to 11. [ci skip]
59 lines
2 KiB
Diff
59 lines
2 KiB
Diff
From 594e3c1ab576daddeb86015efc8b1677020b1878 Mon Sep 17 00:00:00 2001
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From: Szabolcs Nagy <nsz@port70.net>
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Date: Sat, 24 Oct 2015 20:39:30 +0000
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Subject: [PATCH 1/6] cilkrts
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---
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libcilkrts/runtime/os-unix.c | 22 +++++++---------------
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1 file changed, 7 insertions(+), 15 deletions(-)
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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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--
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2.8.1
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