From: Ard Biesheuvel <[email protected]> Annotate the indirect jump with a relocation that correlates it with the jump table emitted into .rodata. This helps objtool identify the jump table, allowing it to infer the places in the code that are reachable from the jump.
Signed-off-by: Ard Biesheuvel <[email protected]> --- arch/x86/crypto/crc32c-pcl-intel-asm_64.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S index 45b005935194..7292090e76dd 100644 --- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S @@ -171,6 +171,7 @@ SYM_FUNC_START(crc_pcl) leaq jump_table(%rip), %bufp movslq (%bufp,%rax,4), len addq len, %bufp + .reloc ., R_X86_64_NONE, jump_table JMP_NOSPEC bufp ################################################################ @@ -327,6 +328,8 @@ JMPTBL_ENTRY %i i=i+1 .endr +.size jump_table, . - jump_table +.type jump_table, @object ################################################################ ## PCLMULQDQ tables -- 2.47.0.rc1.288.g06298d1525-goog
