Commit 2e2c6d3f authored by Ilya Leoshkevich's avatar Ilya Leoshkevich Committed by Andrii Nakryiko
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selftests/bpf: Fix test_core_reloc_mods on big-endian machines 



This is the same as commit d164dd9a ("selftests/bpf: Fix
test_core_autosize on big-endian machines"), but for
test_core_reloc_mods.

Signed-off-by: default avatarIlya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211026010831.748682-7-iii@linux.ibm.com
parent 3e7ed9ce

tools/testing/selftests/bpf/progs/test_core_reloc_mods.c

+9 −0
Original line number Diff line number Diff line
@@ -42,7 +42,16 @@ struct core_reloc_mods { 
	core_reloc_mods_substruct_t h;

};



#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__

#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)

#else

#define CORE_READ(dst, src) ({ \

	int __sz = sizeof(*(dst)) < sizeof(*(src)) ? sizeof(*(dst)) : \

						     sizeof(*(src)); \

	bpf_core_read((char *)(dst) + sizeof(*(dst)) - __sz, __sz, \

		      (const char *)(src) + sizeof(*(src)) - __sz); \

})

#endif



SEC("raw_tracepoint/sys_enter")

int test_core_mods(void *ctx)