* Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote: > This is a major rewrite of objtool. Instead of only tracking frame > pointer changes, it now tracks all stack-related operations, including > all register saves/restores. > > In addition to making stack validation more robust, this also paves the > way for undwarf generation. > > Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Note, I have applied the first 3 patches, and got a bunch of new warnings on x86 64-bit allmodconfig: arch/x86/kernel/alternative.o: warning: objtool: do_sync_core()+0x1b: unsupported instruction in callable function arch/x86/kernel/alternative.o: warning: objtool: text_poke()+0x1a8: unsupported instruction in callable function arch/x86/kernel/ftrace.o: warning: objtool: do_sync_core()+0x16: unsupported instruction in callable function arch/x86/kernel/cpu/mcheck/mce.o: warning: objtool: machine_check_poll()+0x166: unsupported instruction in callable function arch/x86/kernel/cpu/mcheck/mce.o: warning: objtool: do_machine_check()+0x147: unsupported instruction in callable function (That's the vmlinux build - plus 4 more warnings in the modules build.) That's with GCC 5.3.1. Let me know if you need any more info. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
