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| author | kib <kib@FreeBSD.org> | 2014-08-16 08:38:53 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2014-08-16 08:38:53 +0000 |
| commit | 9cb3300d8873288618caa26042799d0bbbdfce49 (patch) | |
| tree | 8a66b6dc583fede70780e314a93a3b4ab8bfb036 /lib/libthr/thread/thr_stack.c | |
| parent | 6f9f1bcfb80d50fe7cd46c63ecb4c5fbad2a59ed (diff) | |
| download | FreeBSD-src-9cb3300d8873288618caa26042799d0bbbdfce49.zip FreeBSD-src-9cb3300d8873288618caa26042799d0bbbdfce49.tar.gz | |
MFC r269909:
Add a knob LIBPTHREAD_BIGSTACK_MAIN, which instructs libthr to leave
the whole RLIMIT_STACK-sized region of the kernel-allocated stack as
the stack of main thread.
Diffstat (limited to 'lib/libthr/thread/thr_stack.c')
| -rw-r--r-- | lib/libthr/thread/thr_stack.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libthr/thread/thr_stack.c b/lib/libthr/thread/thr_stack.c index 5f8cd4e..e5d149e 100644 --- a/lib/libthr/thread/thr_stack.c +++ b/lib/libthr/thread/thr_stack.c @@ -246,7 +246,10 @@ _thr_stack_alloc(struct pthread_attr *attr) THREAD_LIST_UNLOCK(curthread); } else { - /* Allocate a stack from usrstack. */ + /* + * Allocate a stack from or below usrstack, depending + * on the LIBPTHREAD_BIGSTACK_MAIN env variable. + */ if (last_stack == NULL) last_stack = _usrstack - _thr_stack_initial - _thr_guard_default; |
