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[CMake] Options to control generation of reproducers #143037

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[CMake] Options to control generation of reproducers #143037

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11cdc45
[CMake] Options to control generation of reproducers
petrhosek Jun 5, 2025
24a8b62
Rename LLVM_ERROR_REPRODUCERS to LLVM_GEN_REPRODUCER
petrhosek Jun 5, 2025
abd3a69
Update documentation
petrhosek Jun 13, 2025
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4 changes: 4 additions & 0 deletions llvm/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -874,6 +874,10 @@ option (LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO
option(LLVM_VERSION_PRINTER_SHOW_BUILD_CONFIG
"Show the optional build config flags when tools are invoked with --version." ON)

set(LLVM_CRASH_DIAGNOSTICS "" CACHE STRING "Control when to generate reproducer. Can be OFF, COMPILER, ALL")
set(LLVM_CRASH_DIAGNOSTICS_DIR "" CACHE STRING "Path to use for crash reproducers")
set(LLVM_GEN_REPRODUCER OFF CACHE BOOL "Generate a reproducer. Can be OFF, CRASH, ERROR, ALWAYS")

# You can configure which libraries from LLVM you want to include in the
# shared library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited
# list of LLVM components. All component names handled by llvm-config are valid.
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20 changes: 20 additions & 0 deletions llvm/cmake/modules/HandleLLVMOptions.cmake
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Expand Up @@ -1433,3 +1433,23 @@ if(LLVM_ENABLE_LLVM_LIBC)
message(WARNING "Unable to link against LLVM libc. LLVM will be built without linking against the LLVM libc overlay.")
endif()
endif()

if(LLVM_CRASH_DIAGNOSTICS)
string(TOLOWER "${LLVM_CRASH_DIAGNOSTICS}" LLVM_CRASH_DIAGNOSTICS)
check_c_compiler_flag("-fcrash-diagnostics=${LLVM_CRASH_DIAGNOSTICS}" SUPPORTS_FCRASH_DIAGNOSTICS)
append_if(SUPPORTS_FCRASH_DIAGNOSTICS "-fcrash-diagnostics=${LLVM_CRASH_DIAGNOSTICS}"
CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()

if(LLVM_CRASH_DIAGNOSTICS_DIR)
check_c_compiler_flag("-fcrash-diagnostics-dir=foo" SUPPORTS_FCRASH_DIAGNOSTICS_DIR)
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Is there value in adding a warning here if this is requested but the host compiler does not support the flag?

append_if(SUPPORTS_FCRASH_DIAGNOSTICS_DIR "-fcrash-diagnostics-dir=${LLVM_CRASH_DIAGNOSTICS_DIR}"
CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()

if(LLVM_GEN_REPRODUCER)
string(TOLOWER "${LLVM_GEN_REPRODUCER}" LLVM_GEN_REPRODUCER)
check_c_compiler_flag("-gen-reproducer=${LLVM_GEN_REPRODUCER}" SUPPORTS_GEN_REPRODUCER)
append_if(SUPPORTS_GEN_REPRODUCER "-gen-reproducer=${LLVM_GEN_REPRODUCER}"
CMAKE_C_FLAGS CMAKE_CXX_FLAGS CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
4 changes: 4 additions & 0 deletions llvm/cmake/modules/LLVMConfig.cmake.in
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Expand Up @@ -139,6 +139,10 @@ set(LLVM_HAVE_OPT_VIEWER_MODULES @LLVM_HAVE_OPT_VIEWER_MODULES@)
set(LLVM_CONFIGURATION_TYPES @CMAKE_CONFIGURATION_TYPES@)
set(LLVM_ENABLE_SHARED_LIBS @BUILD_SHARED_LIBS@)

set(LLVM_CRASH_DIAGNOSTICS "@LLVM_CRASH_DIAGNOSTICS@")
set(LLVM_CRASH_DIAGNOSTICS_DIR "@LLVM_CRASH_DIAGNOSTICS_DIR@")
set(LLVM_GEN_REPRODUCER "@LLVM_GEN_REPRODUCER@")

set(LLVM_DEFAULT_EXTERNAL_LIT "@LLVM_CONFIG_DEFAULT_EXTERNAL_LIT@")
set(LLVM_LIT_ARGS "@LLVM_LIT_ARGS@")

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