generic-library/bionic
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

am f542b309: Merge "Name the thread stack and signal stack guard pages."

Browse Source 
* commit 'f542b30970ae863caceea1f635115f1195461e31':
  Name the thread stack and signal stack guard pages.
This commit is contained in:
Elliott Hughes 2015-07-06 20:22:43 +00:00 committed by Android Git Automerger
commit 4059fcd29b
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libc/bionic/pthread_create.cpp
View File

@ -87,6 +87,7 @@ void __init_alternate_signal_stack(pthread_internal_t* thread) {
// We can only use const static allocated string for mapped region name, as Android kernel
// uses the string pointer directly when dumping /proc/pid/maps.
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, ss.ss_sp, ss.ss_size, "thread signal stack");
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, stack_base, PAGE_SIZE, "thread signal stack guard page");
}
}
@ -140,6 +141,7 @@ static void* __create_thread_mapped_space(size_t mmap_size, size_t stack_guard_s
munmap(space, mmap_size);
return NULL;
}
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, space, stack_guard_size, "thread stack guard page");
return space;
}