[clang] 2bb6d7b - [clang-repl] Limit use of PLT offset flag to linkers that support it

[Stefan Gränitz via cfe-commits]

Author: Stefan Gränitz
Date: 2024-01-22T17:16:52+01:00
New Revision: 2bb6d7b8a4d1e31d5c856174c163e77d7d3a0b94

URL: https://github.com/llvm/llvm-project/commit/2bb6d7b8a4d1e31d5c856174c163e77d7d3a0b94
DIFF: https://github.com/llvm/llvm-project/commit/2bb6d7b8a4d1e31d5c856174c163e77d7d3a0b94.diff

LOG: [clang-repl] Limit use of PLT offset flag to linkers that support it

Follow-up fix from https://github.com/llvm/llvm-project/pull/78959

Added: 
    

Modified: 
    clang/tools/clang-repl/CMakeLists.txt

Removed: 
    


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diff  --git a/clang/tools/clang-repl/CMakeLists.txt b/clang/tools/clang-repl/CMakeLists.txt
index b0aaf39f0115472..2a0f617a2c0ff6b 100644
--- a/clang/tools/clang-repl/CMakeLists.txt
+++ b/clang/tools/clang-repl/CMakeLists.txt
@@ -24,6 +24,11 @@ if(CLANG_PLUGIN_SUPPORT)
 endif()
 
 string(TOUPPER ${CMAKE_SYSTEM_PROCESSOR} system_processor)
-if(${system_processor} MATCHES "ARM")
-  target_link_options(clang-repl PRIVATE LINKER:--long-plt)
+if(system_processor MATCHES "ARM")
+  set(FLAG_LONG_PLT "-Wl,--long-plt")
+  llvm_check_linker_flag(CXX ${FLAG_LONG_PLT} LINKER_HAS_FLAG_LONG_PLT)
+  # Linkers without this flag are assumed to have long PLTs by default
+  if(LINKER_HAS_FLAG_LONG_PLT)
+    target_link_options(clang-repl PRIVATE ${FLAG_LONG_PLT})
+  endif()
 endif()