[all-commits] [llvm/llvm-project] f5b95d: [rtsan] Only print out unique stack traces (#110028)

[Chris Apple via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f5b95db4c3ea266489a68a7655425b18ce5805f6
      https://github.com/llvm/llvm-project/commit/f5b95db4c3ea266489a68a7655425b18ce5805f6
  Author: Chris Apple <cja-private at pm.me>
  Date:   2024-09-26 (Thu, 26 Sep 2024)

  Changed paths:
    M compiler-rt/lib/rtsan/rtsan.cpp
    M compiler-rt/lib/rtsan/rtsan_diagnostics.cpp
    M compiler-rt/lib/rtsan/rtsan_stats.cpp
    M compiler-rt/lib/rtsan/rtsan_stats.h
    A compiler-rt/test/rtsan/deduplicate_errors.cpp
    M compiler-rt/test/rtsan/exit_stats.cpp

  Log Message:
  -----------
  [rtsan] Only print out unique stack traces (#110028)

# Why?

In real-time programming, you often have a process or dispatch loop that
is called many, many, many times. Without de-duplication the user will
be drowning in errors.

Introduce a way to only print the stacks one time only, if they have
been seen before



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