Re: [PATCH v2 4/6] objtool/powerpc: Skip jump destination analysis and unnanotated intra-function call warnings for --ftr-fixup
flat view
From: Shivang Upadhyay <hidden>
Date: 2026-09-30 06:12:51
Also in:
linux-kbuild, lkml
On Tue, 2026-09-29 at 16:25 +0200, Peter Zijlstra wrote:
quoted
c00000000002a610 <system_reset_exception>: c00000000002a610: 0e 01 4c 3c addis r2,r12,270 c00000000002a610: R_PPC64_REL16_HA .TOC. c00000000002a614: f0 6c 42 38 addi r2,r2,27888 c00000000002a614: R_PPC64_REL16_LO .TOC.+0x4 c00000000002a618: a6 02 08 7c mflr r0 This is happening because we should be looking for destination symbols that are at absolute offsets instead of relative offsets.Again, confused. We run objtool on objects, this is pre-linking, there are no absolute offsets.
Hi Peter, This is the special requirement of patching jump assembly instructions that we need to know where the jump is performed from/to. As per 5/6 objtool is run post link on vmlinux. If handling post-link information is outside the scope of objtool, please let me know. Regards, ~Shivang.