[all-commits] [llvm/llvm-project] 90418d: [lsan] Invoke hooks on realloc

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  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 90418dc95ec1cd5aeb844d93f055b94759e2c408
      https://github.com/llvm/llvm-project/commit/90418dc95ec1cd5aeb844d93f055b94759e2c408
  Author: Jin Xin Ng <njx at google.com>
  Date:   2023-05-23 (Tue, 23 May 2023)

  Changed paths:
    M compiler-rt/lib/lsan/lsan_allocator.cpp
    M compiler-rt/test/sanitizer_common/TestCases/malloc_hook.cpp

  Log Message:
  -----------
  [lsan] Invoke hooks on realloc

Previously lsan would not invoke hooks on reallocations.
An accompanying regression test is included in sanitizer_common.

This change also moves hook calls to a location where subsequent
calls (via an external caller) to __sanitizer_get_allocated_size
via hooks will return a valid size.

This allows a faster version of __sanitizer_get_allocated_size
to be implemented, which can skip checks.

Test to ensure RunFreeHooks' call order will come with
__sanitizer_get_allocated_size_fast

Differential Revision: https://reviews.llvm.org/D151175