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CMake: Add -mstrict-align flag to compile options for aarch64 build

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The aarch64 processor is set up to trap on unaligned memory accesses, so
to enforce that the compiler correctly generates aligned accesses, the
-mstrict-align flag is needed. We also need the -Wno-cast-align as there
are some files in AK that don't build without the flag.
This commit is contained in:
Timon Kruiper 2023-02-14 19:54:43 +01:00 • committed by Jelle Raaijmakers
parent d5262a540c
commit dfc6555fec
1 changed files with 7 additions and 0 deletions
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7
Meta/CMake/serenity_compile_options.cmake
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@ -52,3 +52,10 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang$")
# Clang doesn't add compiler_rt to the search path when compiling with -nostdlib.
link_directories(${TOOLCHAIN_ROOT}/lib/clang/${CMAKE_CXX_COMPILER_VERSION}/lib/${SERENITY_ARCH}-pc-serenity/)
endif()
if ("${SERENITY_ARCH}" STREQUAL "aarch64")
# Unaligned memory access will cause a trap, so to make sure the compiler doesn't generate
# those unaligned accesses, the strict-align flag is added.
# FIXME: Remove -Wno-cast-align when we are able to build everything without this warning turned on.
add_compile_options(-mstrict-align -Wno-cast-align)
endif()