diff options
| author | kib <kib@FreeBSD.org> | 2014-09-24 12:39:12 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2014-09-24 12:39:12 +0000 |
| commit | a14de80022b68a2a2de83632a3ad04918609b3b3 (patch) | |
| tree | 51454fe2744832e4b4d3476e3e06d54e83f42f54 | |
| parent | b5f21a6a8117864409084c11ce2f421427bbb3b7 (diff) | |
| download | FreeBSD-src-a14de80022b68a2a2de83632a3ad04918609b3b3.zip FreeBSD-src-a14de80022b68a2a2de83632a3ad04918609b3b3.tar.gz | |
Switch the defaults to not split the RLIMIT_STACK-sized initial thread
stack into the stacks of the created threads. Add knob
LIBPTHREAD_SPLITSTACK_MAIN to restore the older behaviour.
Sponsored by: The FreeBSD Foundation
MFC after: 3 weeks
| -rw-r--r-- | lib/libthr/thread/thr_init.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/libthr/thread/thr_init.c b/lib/libthr/thread/thr_init.c index 9bf0e29..6d6a532 100644 --- a/lib/libthr/thread/thr_init.c +++ b/lib/libthr/thread/thr_init.c @@ -445,7 +445,7 @@ init_private(void) struct rlimit rlim; size_t len; int mib[2]; - char *env; + char *env, *env_bigstack, *env_splitstack; _thr_umutex_init(&_mutex_static_lock); _thr_umutex_init(&_cond_static_lock); @@ -473,8 +473,9 @@ init_private(void) len = sizeof (_usrstack); if (sysctl(mib, 2, &_usrstack, &len, NULL, 0) == -1) PANIC("Cannot get kern.usrstack from sysctl"); - env = getenv("LIBPTHREAD_BIGSTACK_MAIN"); - if (env != NULL) { + env_bigstack = getenv("LIBPTHREAD_BIGSTACK_MAIN"); + env_splitstack = getenv("LIBPTHREAD_SPLITSTACK_MAIN"); + if (env_bigstack != NULL || env_splitstack == NULL) { if (getrlimit(RLIMIT_STACK, &rlim) == -1) PANIC("Cannot get stack rlimit"); _thr_stack_initial = rlim.rlim_cur; |
