[compiler-rt] 7a55595 - [scudo] Initialize the allocator in setTrackAllocationStacks.

[Evgenii Stepanov via llvm-commits]

Author: Evgenii Stepanov
Date: 2020-04-29T17:01:58-07:00
New Revision: 7a555958f111094df4336209fd05522d07c483b0

URL: https://github.com/llvm/llvm-project/commit/7a555958f111094df4336209fd05522d07c483b0
DIFF: https://github.com/llvm/llvm-project/commit/7a555958f111094df4336209fd05522d07c483b0.diff

LOG: [scudo] Initialize the allocator in setTrackAllocationStacks.

Summary:
If this is called before the malloc call in a thread (or in the whole
program), the lazy initialization of the allocation can overwrite
Options.

Reviewers: pcc, cryptoad

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D79130

Added: 
    

Modified: 
    compiler-rt/lib/scudo/standalone/combined.h

Removed: 
    


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diff  --git a/compiler-rt/lib/scudo/standalone/combined.h b/compiler-rt/lib/scudo/standalone/combined.h
index b44753a4373a..66638e7dd5db 100644
--- a/compiler-rt/lib/scudo/standalone/combined.h
+++ b/compiler-rt/lib/scudo/standalone/combined.h
@@ -721,6 +721,7 @@ class Allocator {
   void disableMemoryTagging() { Primary.disableMemoryTagging(); }
 
   void setTrackAllocationStacks(bool Track) {
+    initThreadMaybe();
     Options.TrackAllocationStacks = Track;
   }