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| author | Dmitriy Ivanov <dimitry@google.com> | 2014-08-08 16:57:15 -0700 |
|---|---|---|
| committer | Dmitriy Ivanov <dimitry@google.com> | 2014-08-11 09:22:48 -0700 |
| commit | 51a22a12ab370933a35463f5c81223132ec64dcb (patch) | |
| tree | 83033d1672090d93a22d349669bbe9159322f4e8 /linker/linker_allocator.cpp | |
| parent | a0db46418757dd1b399acb97ff42083cc274e8ae (diff) | |
| download | android_bionic-51a22a12ab370933a35463f5c81223132ec64dcb.tar.gz android_bionic-51a22a12ab370933a35463f5c81223132ec64dcb.tar.bz2 android_bionic-51a22a12ab370933a35463f5c81223132ec64dcb.zip | |
Label pages mapped by linker_allocator
Change-Id: I7e0bf29bc1a480e9be0d1ae573ca1063d90d82ff
Diffstat (limited to 'linker/linker_allocator.cpp')
| -rw-r--r-- | linker/linker_allocator.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/linker/linker_allocator.cpp b/linker/linker_allocator.cpp index f5d3745b4..92220e8c4 100644 --- a/linker/linker_allocator.cpp +++ b/linker/linker_allocator.cpp @@ -18,6 +18,8 @@ #include <sys/mman.h> #include <unistd.h> +#include "private/bionic_prctl.h" + struct LinkerAllocatorPage { LinkerAllocatorPage* next; uint8_t bytes[PAGE_SIZE-sizeof(LinkerAllocatorPage*)]; @@ -96,6 +98,9 @@ void LinkerBlockAllocator::create_new_page() { if (page == MAP_FAILED) { abort(); // oom } + + prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, page, PAGE_SIZE, "linker_alloc"); + memset(page, 0, PAGE_SIZE); FreeBlockInfo* first_block = reinterpret_cast<FreeBlockInfo*>(page->bytes); |