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tools headers: Sync linux/cfi_types.h with the kernel source

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To pick up the changes in this cset:

  5ccaeedb48 cfi: add C CFI type macro

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/linux/cfi_types.h include/linux/cfi_types.h

Please see tools/include/uapi/README for further details.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim 2025-08-18 10:32:18 -07:00
parent 6cb8607934
commit aa34642f6f
1 changed files with 23 additions and 0 deletions
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23
tools/include/linux/cfi_types.h
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@ -41,5 +41,28 @@
SYM_TYPED_START(name, SYM_L_GLOBAL, SYM_A_ALIGN) SYM_TYPED_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
#endif #endif
#else /* __ASSEMBLY__ */
#ifdef CONFIG_CFI_CLANG
#define DEFINE_CFI_TYPE(name, func) \
/* \
* Force a reference to the function so the compiler generates \
* __kcfi_typeid_<func>. \
*/ \
__ADDRESSABLE(func); \
/* u32 name __ro_after_init = __kcfi_typeid_<func> */ \
extern u32 name; \
asm ( \
" .pushsection .data..ro_after_init,\"aw\",\%progbits \n" \
" .type " #name ",\%object \n" \
" .globl " #name " \n" \
" .p2align 2, 0x0 \n" \
#name ": \n" \
" .4byte __kcfi_typeid_" #func " \n" \
" .size " #name ", 4 \n" \
" .popsection \n" \
);
#endif
#endif /* __ASSEMBLY__ */ #endif /* __ASSEMBLY__ */
#endif /* _LINUX_CFI_TYPES_H */ #endif /* _LINUX_CFI_TYPES_H */