[Frontend] Define __SANITIZE__ macros for kernel address variants #156543
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GCC defines these macros for both userspace and kernel address sanitizers: $ gcc -E -dM -fsanitize=address -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_ADDRESS__ 1 $ gcc -E -dM -fsanitize=kernel-address -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_ADDRESS__ 1 $ gcc -E -dM -fsanitize=hwaddress -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_HWADDRESS__ 1 $ gcc -E -dM -fsanitize=kernel-hwaddress -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_HWADDRESS__ 1 PR llvm#153888 added these same defines for clang but only for the userspace address sanitizers: $ clang -E -dM -fsanitize=address -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_ADDRESS__ 1 $ clang -E -dM -fsanitize=kernel-address -x c /dev/null &| string match -er SANITIZE $ clang -E -dM -fsanitize=hwaddress -x c /dev/null &| string match -er SANITIZE #define __SANITIZE_HWADDRESS__ 1 $ clang -E -dM -fsanitize=kernel-hwaddress -x c /dev/null &| string match -er SANITIZE Match GCC's behavior so that the Linux kernel can eventually drop its own internal defines.
pcc
reviewed
Sep 2, 2025
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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GCC defines these macros for both userspace and kernel address sanitizers:
PR #153888 added these same defines for clang but only for the userspace address sanitizers:
Match GCC's behavior so that the Linux kernel can eventually drop its own internal defines.