OLD | NEW |
1 #define _GNU_SOURCE | 1 #define _GNU_SOURCE |
2 #include "pthread_impl.h" | 2 #include "pthread_impl.h" |
3 #include "libc.h" | 3 #include "libc.h" |
4 #include <sys/mman.h> | 4 #include <sys/mman.h> |
5 | 5 |
6 int pthread_getattr_np(pthread_t t, pthread_attr_t *a) | 6 int pthread_getattr_np(pthread_t t, pthread_attr_t* a) { |
7 { | 7 *a = (pthread_attr_t){0}; |
8 » *a = (pthread_attr_t){0}; | 8 a->_a_detach = !!t->detached; |
9 » a->_a_detach = !!t->detached; | 9 if (t->stack) { |
10 » if (t->stack) { | 10 a->_a_stackaddr = (uintptr_t)t->stack; |
11 » » a->_a_stackaddr = (uintptr_t)t->stack; | 11 a->_a_stacksize = t->stack_size - DEFAULT_STACK_SIZE; |
12 » » a->_a_stacksize = t->stack_size - DEFAULT_STACK_SIZE; | 12 } else { |
13 » } else { | 13 char* p = (void*)libc.auxv; |
14 » » char *p = (void *)libc.auxv; | 14 size_t l = PAGE_SIZE; |
15 » » size_t l = PAGE_SIZE; | 15 p += -(uintptr_t)p & PAGE_SIZE - 1; |
16 » » p += -(uintptr_t)p & PAGE_SIZE-1; | 16 a->_a_stackaddr = (uintptr_t)p; |
17 » » a->_a_stackaddr = (uintptr_t)p; | 17 while (mremap(p - l - PAGE_SIZE, PAGE_SIZE, 2 * PAGE_SIZE, 0) == |
18 » » while (mremap(p-l-PAGE_SIZE, PAGE_SIZE, 2*PAGE_SIZE, 0)==MAP_FAI
LED && errno==ENOMEM) | 18 MAP_FAILED && |
19 » » » l += PAGE_SIZE; | 19 errno == ENOMEM) |
20 » » a->_a_stacksize = l - DEFAULT_STACK_SIZE; | 20 l += PAGE_SIZE; |
21 » } | 21 a->_a_stacksize = l - DEFAULT_STACK_SIZE; |
22 » return 0; | 22 } |
| 23 return 0; |
23 } | 24 } |
OLD | NEW |