generic-library/bionic
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Use mmap to create the pthread_internal_t.

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Bug: 16847284
Change-Id: Ic8c85f95afac1d8422ecb69674c688d1fecb6a44
This commit is contained in:
Yabin Cui
2014-11-25 14:18:12 -08:00
parent eb3a5e026e
commit cc5f6543e3
4 changed files with 34 additions and 11 deletions
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7
libc/bionic/pthread_create.cpp
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@@ -158,9 +158,8 @@ int pthread_create(pthread_t* thread_out, pthread_attr_t const* attr,
// Inform the rest of the C library that at least one thread was created.
__isthreaded = 1;
pthread_internal_t* thread = reinterpret_cast<pthread_internal_t*>(calloc(sizeof(*thread), 1));
pthread_internal_t* thread = __create_thread_struct();
if (thread == NULL) {
__libc_format_log(ANDROID_LOG_WARN, "libc", "pthread_create failed: couldn't allocate thread");
return EAGAIN;
}
@@ -179,7 +178,7 @@ int pthread_create(pthread_t* thread_out, pthread_attr_t const* attr,
// The caller didn't provide a stack, so allocate one.
thread->attr.stack_base = __create_thread_stack(thread);
if (thread->attr.stack_base == NULL) {
free(thread);
__free_thread_struct(thread);
return EAGAIN;
}
} else {
@@ -230,7 +229,7 @@ int pthread_create(pthread_t* thread_out, pthread_attr_t const* attr,
if (!thread->user_allocated_stack()) {
munmap(thread->attr.stack_base, thread->attr.stack_size);
}
free(thread);
__free_thread_struct(thread);
__libc_format_log(ANDROID_LOG_WARN, "libc", "pthread_create failed: clone failed: %s", strerror(errno));
return clone_errno;
}