3d4bba302d
See RFC for background: http://lists.llvm.org/pipermail/llvm-dev/2020-June/142744.html Follow on companion to the clang/llvm instrumentation support in D85948 and committed earlier. This patch adds the compiler-rt runtime support for the memory profiling. Note that much of this support was cloned from asan (and then greatly simplified and renamed). For example the interactions with the sanitizer_common allocators, error handling, interception, etc. The bulk of the memory profiling specific code can be found in the MemInfoBlock, MemInfoBlockCache, and related classes defined and used in memprof_allocator.cpp. For now, the memory profile is dumped to text (stderr by default, but honors the sanitizer_common log_path flag). It is dumped in either a default verbose format, or an optional terse format. This patch also adds a set of tests for the core functionality. Differential Revision: https://reviews.llvm.org/D87120
13 lines
291 B
C++
13 lines
291 B
C++
// RUN: %clangxx_memprof -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
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const char *kMemProfDefaultOptions = "verbosity=1 help=1";
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extern "C" const char *__memprof_default_options() {
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// CHECK: Available flags for MemProfiler:
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return kMemProfDefaultOptions;
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}
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int main() {
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return 0;
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}
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