mirror of
https://github.com/fluencelabs/musl
synced 2025-06-30 15:11:55 +00:00
22 lines
562 B
C
22 lines
562 B
C
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#include "pthread_impl.h"
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#include <sys/mman.h>
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int pthread_getattr_np(pthread_t t, pthread_attr_t *a)
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{
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*a = (pthread_attr_t){0};
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a->_a_detach = !!t->detached;
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if (t->stack) {
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a->_a_stackaddr = (uintptr_t)t->stack;
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a->_a_stacksize = t->stack_size - DEFAULT_STACK_SIZE;
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} else {
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char *p = (void *)libc.auxv;
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size_t l = PAGE_SIZE;
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p += -(uintptr_t)p & PAGE_SIZE-1;
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a->_a_stackaddr = (uintptr_t)p;
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while (!posix_madvise(p-l-PAGE_SIZE, PAGE_SIZE, POSIX_MADV_NORMAL))
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l += PAGE_SIZE;
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a->_a_stacksize = l - DEFAULT_STACK_SIZE;
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}
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return 0;
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}
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