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[Solaris] Detect Solaris LD, use detection results to pass Solaris-ld options

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Solaris ld is not the only linker available on Solaris.
Introducing linker detection and using LLVM_LINKER_IS_SOLARISLD to
select Solaris-ld specific handling.

Patch by: Fedor Sergeev

Differential Revision: https://reviews.llvm.org/D35325

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@307852 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama 2017-07-12 21:43:14 +00:00
parent 13ba207632
commit 86784318a6
1 changed files with 17 additions and 2 deletions
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19
cmake/modules/AddLLVM.cmake
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@ -91,7 +91,7 @@ function(add_llvm_symbol_exports target_name export_file)
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
if (${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
if (${LLVM_LINKER_IS_SOLARISLD})
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-M,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
else()
@ -148,13 +148,28 @@ function(add_llvm_symbol_exports target_name export_file)
endfunction(add_llvm_symbol_exports)
if(NOT WIN32 AND NOT APPLE)
# Detect what linker we have here
execute_process(
COMMAND ${CMAKE_C_COMPILER} -Wl,--version
OUTPUT_VARIABLE stdout
ERROR_QUIET
ERROR_VARIABLE stderr
)
set(LLVM_LINKER_DETECTED ON)
if("${stdout}" MATCHES "GNU gold")
set(LLVM_LINKER_IS_GOLD ON)
message(STATUS "Linker detection: GNU Gold")
elseif("${stdout}" MATCHES "^LLD")
set(LLVM_LINKER_IS_LLD ON)
message(STATUS "Linker detection: LLD")
elseif("${stdout}" MATCHES "GNU ld")
set(LLVM_LINKER_IS_GNULD ON)
message(STATUS "Linker detection: GNU ld")
elseif("${stderr}" MATCHES "Solaris Link Editors")
set(LLVM_LINKER_IS_SOLARISLD ON)
message(STATUS "Linker detection: Solaris ld")
else()
set(LLVM_LINKER_DETECTED OFF)
message(STATUS "Linker detection: unknown")
endif()
endif()