Messages in this thread | | | Date | Thu, 17 Aug 2017 11:53:47 -0500 | From | Josh Poimboeuf <> | Subject | Re: warning: objtool: ...: call without frame pointer save/setup; return with modified stack frame |
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On Thu, Aug 17, 2017 at 04:09:58PM +0300, Meelis Roos wrote: > Today I coticed the following objtool warnings when compiling > 4.13-rc5+git for my Atom 330 PC: > > call without frame pointer save/setup > return with modified stack frame > > Examples (there is a lot more of them in practice): > > arch/x86/kernel/smpboot.o: warning: objtool: arch_update_cpu_topology()+0x29: call without frame pointer save/setup > arch/x86/kernel/smpboot.o: warning: objtool: native_smp_prepare_cpus()+0x530: return with modified stack frame > > mm/vmalloc.o: warning: objtool: __get_vm_area()+0x26: call without frame pointer save/setup > mm/vmalloc.o: warning: objtool: get_vm_area()+0x34: call without frame pointer save/setup > > fs/debugfs/inode.o: warning: objtool: debugfs_initialized()+0x22: call without frame pointer save/setup > fs/debugfs/inode.o: warning: objtool: debugfs_create_file()+0x20: call without frame pointer save/setup > fs/debugfs/inode.o: warning: objtool: debugfs_create_file_unsafe()+0x20: call without frame pointer save/setup > > mm/nobootmem.o: warning: objtool: __alloc_memory_core_early()+0xb2: return with modified stack frame
Hi Meelis,
Thanks for reporting this issue. This has been already been fixed in the tip tree with the following commit:
5b8de48e82ba ("objtool: Fix '-mtune=atom' decoding support in objtool 2.0")
Ingo, would you be willing to put this patch in the 4.13 urgent queue?
-- Josh
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