Re: [PATCH v2 4/6] objtool/powerpc: Skip jump destination analysis and unnanotated intra-function call warnings for --ftr-fixup
flat view
From: Peter Zijlstra <peterz@infradead.org>
Date: 2026-09-29 14:26:17
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linux-kbuild, lkml
On Tue, Sep 29, 2026 at 11:21:35AM +0530, Shivang Upadhyay wrote:
From: Sathvika Vasireddy <redacted>
Objtool is throwing unannotated intra-function call warnings
when run on vmlinux with --ftr-fixup option.
One such example:
vmlinux: warning: objtool: .text+0x3d94:
unannotated intra-function call
.text + 0x3d94 = c000000000008000 + 3d94 = c0000000000081d4
c0000000000081d4: 45 24 02 48 bl c00000000002a618
<system_reset_exception+0x8>
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.