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| author | Sergejs Lukanihins <slukanihin@gmail.com> | 2018-05-25 17:27:21 +0100 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2018-05-29 18:37:33 +0200 |
| commit | 06797545b3270f8cfafe1d8314970dc705f29d39 (patch) | |
| tree | 45427c60f429b6a770978e788e370b5d82bae1be | |
| parent | 53960db861a3fec90a3173469cf18a7cc2a13c4e (diff) | |
| download | cygnal-06797545b3270f8cfafe1d8314970dc705f29d39.tar.gz cygnal-06797545b3270f8cfafe1d8314970dc705f29d39.tar.bz2 cygnal-06797545b3270f8cfafe1d8314970dc705f29d39.zip | |
Cygwin: Fixing the math behind rounding down ch.stacklimit to page size.
| -rw-r--r-- | winsup/cygwin/fork.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc index bcbef12d8..c6fef6755 100644 --- a/winsup/cygwin/fork.cc +++ b/winsup/cygwin/fork.cc @@ -316,7 +316,7 @@ frok::parent (volatile char * volatile stack_here) on whether we're running on a pthread or not. If pthread, we fetch the guardpage size from the pthread attribs, otherwise we use the system default. */ - ch.stacklimit = (void *) ((uintptr_t) stack_here & ~wincap.page_size ()); + ch.stacklimit = (void *) ((uintptr_t) stack_here & ~(wincap.page_size () - 1)); ch.guardsize = (&_my_tls != _main_tls && _my_tls.tid) ? _my_tls.tid->attr.guardsize : wincap.def_guard_page_size (); |