Thread (8 messages) 8 messages, 4 authors, 2021-06-21

Re: linux-next: Tree for Apr 16 (objtool: warnings)

From: Peter Zijlstra <peterz@infradead.org>
Date: 2021-06-21 13:34:44
Also in: lkml

On Fri, Apr 16, 2021 at 10:50:49AM -0700, Randy Dunlap wrote:
On 4/16/21 4:36 AM, Stephen Rothwell wrote:
quoted
Hi all,

Changes since 20210415:

on x86_64, objtool is not liking retpoline.o:

$ gcc --version
gcc (SUSE Linux) 7.5.0


Is there already a patch for these?


===== build-r8840.out =====
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rax()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rbx()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rcx()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rdx()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rsi()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rdi()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_rbp()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r8()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r9()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r10()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r11()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r12()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r13()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r14()+0x0: call without frame pointer save/setup
arch/x86/lib/retpoline.o: warning: objtool: __x86_indirect_alt_call_r15()+0x0: call without frame pointer save/setup
Damn, sorry I missed this. I know what the problem is, but I've yet to
find a solution that's not terrible... hold on.
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