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[lldb][cmake] Error out when building debugserver with CMake 4 #10704

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merged 1 commit into from
May 21, 2025
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[lldb][cmake] Error out when building debugserver with CMake 4 #10704

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17 changes: 16 additions & 1 deletion lldb/tools/debugserver/source/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -154,6 +154,21 @@ endif()

add_definitions(-DLLDB_USE_OS_LOG)

# Make sure we have the macOS SDK root as mig needs it and will silently
# fail to generate its output files without it.
if(CMAKE_OSX_SYSROOT)
set(MIG_SYSROOT ${CMAKE_OSX_SYSROOT})
else()
execute_process(COMMAND xcrun --show-sdk-path
OUTPUT_VARIABLE MIG_SYSROOT
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
endif()

if(NOT MIG_SYSROOT)
message(FATAL_ERROR "Unable to obtain sysroot required by mig (Mach Interface Generator). Set CMAKE_OSX_SYSROOT to explicitly specify a sysroot.")
endif()

if(${CMAKE_OSX_SYSROOT} MATCHES ".Internal.sdk$")
message(STATUS "LLDB debugserver energy support is enabled")
add_definitions(-DLLDB_ENERGY)
Expand All @@ -177,7 +192,7 @@ endif()
separate_arguments(MIG_ARCH_FLAGS_SEPARTED NATIVE_COMMAND "${MIG_ARCH_FLAGS}")

add_custom_command(OUTPUT ${generated_mach_interfaces}
VERBATIM COMMAND mig ${MIG_ARCH_FLAGS_SEPARTED} -isysroot ${CMAKE_OSX_SYSROOT} ${CMAKE_CURRENT_SOURCE_DIR}/MacOSX/dbgnub-mig.defs
VERBATIM COMMAND mig ${MIG_ARCH_FLAGS_SEPARTED} -isysroot ${MIG_SYSROOT} ${CMAKE_CURRENT_SOURCE_DIR}/MacOSX/dbgnub-mig.defs
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/MacOSX/dbgnub-mig.defs
)

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