================
@@ -2916,6 +2917,12 @@ instrumentation:
$ LLVM_PROFILE_FILE="code-%m.profraw" ./code
+ Although rare, binary signatures used by the ``%m`` specifier can have
+ collisions. In this case, the ``%b`` specifier, which expands to the binary
+ ID (build ID in ELF and COFF), can be added. To use it, the program should
be
+ compiled with the build ID linker option (``--build-id`` for GNU ld or LLD).
----------------
ZequanWu wrote:
> ``--build-id`` for GNU ld or LLD
Also `/build-id` for lld-link on windows.
https://github.com/llvm/llvm-project/pull/123963
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