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LibC: Properly implement stack protectors
The shared parts are now firmly compiled into LibC instead of being defined as a static library and then being copied over manually. The non-shared ("local") parts are kept as a static library that is linked into each binary on demand. This finally allows us to support linking with the -fstack-protector flag, which now replaces the `ssp` target being linked into each binary accidentally via CMake.
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7 changed files with 45 additions and 21 deletions
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@ -33,8 +33,8 @@ set(SOURCES ${LOADER_SOURCES} ${AK_SOURCES} ${ELF_SOURCES} ${LIBC_SOURCES1} ${LI
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -nostdlib -pie -fpic -DNO_TLS")
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set_source_files_properties (../Libraries/LibC/ssp.cpp PROPERTIES COMPILE_FLAGS
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"-fno-stack-protector")
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set_source_files_properties(../Libraries/LibC/ssp.cpp PROPERTIES COMPILE_FLAGS "-fno-stack-protector")
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set_source_files_properties(../Libraries/LibC/ssp_nonshared.cpp PROPERTIES COMPILE_FLAGS "-fno-stack-protector")
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# Prevent GCC from removing null checks by marking the `FILE*` argument non-null
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set_source_files_properties(../Libraries/LibC/stdio.cpp PROPERTIES COMPILE_FLAGS "-fno-builtin-fputc -fno-builtin-fputs -fno-builtin-fwrite")
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