Re: [PATCH v2 12/16] selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers

[Mark Brown]

On Wed, Feb 26, 2025 at 12:44:51PM +0100, Thomas Weißschuh wrote:
> To allow the usage of parse_vdso.c together with a limited libc like
> nolibc, use the kernels own elf.h and auxvec.h headers.

The vDSO selftests currently fail build for at least arm64 in -next:

  CC       vdso_test_gettimeofday
  CC       vdso_test_getcpu
  CC       vdso_test_abi
  CC       vdso_test_clock_getres
  CC       vdso_test_correctness
  CC       vdso_test_getrandom
  CC       vdso_test_chacha
/build/stage/linux/tools/include/uapi/linux/types.h: Assembler messages:
/build/stage/linux/tools/include/uapi/linux/types.h:9: Error: unknown mnemonic `typedef' -- `typedef __u16 __le16'
/build/stage/linux/tools/include/uapi/linux/types.h:10: Error: unknown mnemonic `typedef' -- `typedef __u16 __be16'
/build/stage/linux/tools/include/uapi/linux/types.h:11: Error: unknown mnemonic `typedef' -- `typedef __u32 __le32'
/build/stage/linux/tools/include/uapi/linux/types.h:12: Error: unknown mnemonic `typedef' -- `typedef __u32 __be32'
/build/stage/linux/tools/include/uapi/linux/types.h:13: Error: unknown mnemonic `typedef' -- `typedef __u64 __le64'
/build/stage/linux/tools/include/uapi/linux/types.h:14: Error: unknown mnemonic `typedef' -- `typedef __u64 __be64'
/build/stage/linux/tools/include/uapi/linux/types.h:16: Error: unknown mnemonic `typedef' -- `typedef __u16 __sum16'
/build/stage/linux/tools/include/uapi/linux/types.h:17: Error: unknown mnemonic `typedef' -- `typedef __u32 __wsum'

a bisect points at this patch, it looks like that's due to the switch to
use TOOLS_INCLUDES but I didn't dig into the specifics.

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