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Increase alternative signal stack size on 64-bit devices.

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Bug: 23041777
Bug: 24187462
Change-Id: I7d84c0cc775a74753a3e8e101169c0fb5dbf7437
This commit is contained in:
Yabin Cui
2015-09-22 11:16:15 -07:00
parent 1399759118
commit 33ac04a215
3 changed files with 31 additions and 2 deletions
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7
libc/bionic/pthread_internal.h
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@@ -130,8 +130,13 @@ __LIBC_HIDDEN__ void pthread_key_clean_all(void);
*/
#define PTHREAD_STACK_SIZE_DEFAULT ((1 * 1024 * 1024) - SIGSTKSZ)
/* Leave room for a guard page in the internally created signal stacks. */
// Leave room for a guard page in the internally created signal stacks.
#if defined(__LP64__)
// SIGSTKSZ is not big enough for 64-bit arch. See http://b/23041777.
#define SIGNAL_STACK_SIZE (16 * 1024 + PAGE_SIZE)
#else
#define SIGNAL_STACK_SIZE (SIGSTKSZ + PAGE_SIZE)
#endif
/* Needed by fork. */
__LIBC_HIDDEN__ extern void __bionic_atfork_run_prepare();