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fix build regression on archs with variable page size

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commit 31fb174dd295e50f7c5cf18d31fcfd5fe5a063b7 used
DEFAULT_GUARD_SIZE from pthread_impl.h in a static initializer,
breaking build on archs where its definition, PAGE_SIZE, is not a
constant. instead, just define DEFAULT_GUARD_SIZE as 4096, the minimal
page size on any arch we support. pthread_create rounds up to whole
pages anyway, so defining it to 1 would also work, but a moderately
meaningful value is nicer to programs that use
pthread_attr_getguardsize on default-initialized attribute objects.
This commit is contained in:
Rich Felker 2016-11-08 18:03:42 -05:00
parent 31fb174dd2
commit 4078a5c31f
1 changed files with 1 additions and 1 deletions
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src/internal/pthread_impl.h
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@ -143,7 +143,7 @@ void __block_app_sigs(void *);
void __restore_sigs(void *);
#define DEFAULT_STACK_SIZE 81920
#define DEFAULT_GUARD_SIZE PAGE_SIZE
#define DEFAULT_GUARD_SIZE 4096
#define __ATTRP_C11_THREAD ((void*)(uintptr_t)-1)