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| author | Ryan Prichard <rprichard@google.com> | 2019-06-17 17:57:19 -0700 |
|---|---|---|
| committer | Ryan Prichard <rprichard@google.com> | 2019-07-22 16:03:44 -0700 |
| commit | 750faa515a232d20330e258dc4416dbc9a07446e (patch) | |
| tree | a89e883ab830154cd688bfcfbb9cfab9af892e26 /libc/malloc_hooks/malloc_hooks.cpp | |
| parent | 58c698f230a7efb4231801514d65998f0c925154 (diff) | |
Name stack+tls VMAs with PR_SET_VMA_ANON_NAME
Bionic creates a single thread mapping to hold a thread's stack and static
TLS memory. Use PR_SET_VMA_ANON_NAME to name this region
"stack_and_tls:tid". dumpsys meminfo can report this region as "Stack"
memory.
The main thread's memory is instead named stack_and_tls:main, and the VMA
is renamed to stack_and_tls:main in a post-fork child.
For the main thread, and threads using pthread_attr_setstack, Bionic still
creates the stack_and_tls mapping, but it only has TLS memory in it.
Bug: http://b/134795155
Test: run "dumpsys meminfo" and verify that this CL increases the reported
stack memory usage from about 4MB to 21MB.
Change-Id: Id1f39ff083329e83426130b4ef94222ffacb90ae
Diffstat (limited to 'libc/malloc_hooks/malloc_hooks.cpp')
0 files changed, 0 insertions, 0 deletions