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-rw-r--r--SetFlags.cmake3
1 files changed, 3 insertions, 0 deletions
diff --git a/SetFlags.cmake b/SetFlags.cmake
index 18d5be236..e0eb05ef1 100644
--- a/SetFlags.cmake
+++ b/SetFlags.cmake
@@ -108,7 +108,10 @@ macro(set_flags)
endif()
if("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "arm")
+ # mbed TLS uses the frame pointer's register in inline assembly:
+ # https://tls.mbed.org/kb/development/arm-thumb-error-r7-cannot-be-used-in-asm-here
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fomit-frame-pointer")
+ set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fomit-frame-pointer")
endif()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")