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bolt: Disable the check for /proc/self/map_files. Might not be available on build machines
Index: llvm-toolchain-snapshot_21~++20250531102322+061ef3c6e227/bolt/CMakeLists.txt
===================================================================
--- llvm-toolchain-snapshot_21~++20250531102322+061ef3c6e227.orig/bolt/CMakeLists.txt
+++ llvm-toolchain-snapshot_21~++20250531102322+061ef3c6e227/bolt/CMakeLists.txt
@@ -94,16 +94,6 @@ if ((CMAKE_SYSTEM_PROCESSOR STREQUAL "x8
set(BOLT_ENABLE_RUNTIME_default ON)
endif()
option(BOLT_ENABLE_RUNTIME "Enable BOLT runtime" ${BOLT_ENABLE_RUNTIME_default})
-if (BOLT_ENABLE_RUNTIME)
- # Some systems prevent reading /proc/self/map_files
- execute_process(COMMAND ls /proc/self/map_files
- RESULT_VARIABLE LS OUTPUT_QUIET ERROR_QUIET)
- if (LS)
- message(WARNING
- "BOLT runtime may not be able to read /proc/self/map_files. Please use
- `--instrumentation-binpath <path-to-instrumented-binary>` option.")
- endif()
-endif()
set(BOLT_CLANG_EXE "" CACHE FILEPATH "Path to clang executable for the target \
architecture for use in BOLT tests")
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