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-rw-r--r--Tests/RunCMake/PositionIndependentCode/PIE_validator.cmake32
1 files changed, 32 insertions, 0 deletions
diff --git a/Tests/RunCMake/PositionIndependentCode/PIE_validator.cmake b/Tests/RunCMake/PositionIndependentCode/PIE_validator.cmake
new file mode 100644
index 0000000..7be35db
--- /dev/null
+++ b/Tests/RunCMake/PositionIndependentCode/PIE_validator.cmake
@@ -0,0 +1,32 @@
+
+include_guard(GLOBAL)
+
+function (CHECK_EXECUTABLE executable result)
+ set (${result} "UNKNOWN" PARENT_SCOPE)
+
+ if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+ set (tool otool -hv)
+ else()
+ set (tool "${CMAKE_COMMAND}" -E env LANG=C LC_ALL=C readelf -lW)
+ endif()
+
+ execute_process(COMMAND ${tool} "${executable}"
+ OUTPUT_VARIABLE output
+ ERROR_VARIABLE output)
+
+ if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+ if (output MATCHES "( |\t)PIE( |\n|$)")
+ set (${result} "PIE" PARENT_SCOPE)
+ else()
+ set (${result} "NO_PIE" PARENT_SCOPE)
+ endif()
+ else()
+ if (output MATCHES "Elf file type is DYN")
+ set (${result} "PIE" PARENT_SCOPE)
+ elseif (output MATCHES "Elf file type is EXEC")
+ set (${result} "NO_PIE" PARENT_SCOPE)
+ else()
+ message(SEND_ERROR "Did not find a known file type")
+ endif()
+ endif()
+endfunction()