Hi Masami, [auto build test ERROR on tip/x86/core] [also build test ERROR on v4.13-rc2 next-20170724] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Masami-Hiramatsu/kprobes-x86-Do-not-jump-optimize-kprobes-on-irq-entry-code/20170725-121438 config: i386-randconfig-x019-201730 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): arch/x86/kernel/unwind_frame.c: In function 'in_entry_code': >> arch/x86/kernel/unwind_frame.c:95:14: error: '__irqentry_text_start' >> undeclared (first use in this function) if (addr >= __irqentry_text_start && addr < __irqentry_text_end) ^~~~~~~~~~~~~~~~~~~~~ arch/x86/kernel/unwind_frame.c:95:14: note: each undeclared identifier is reported only once for each function it appears in >> arch/x86/kernel/unwind_frame.c:95:46: error: '__irqentry_text_end' >> undeclared (first use in this function) if (addr >= __irqentry_text_start && addr < __irqentry_text_end) ^~~~~~~~~~~~~~~~~~~ vim +/__irqentry_text_start +95 arch/x86/kernel/unwind_frame.c 24d86f59 Josh Poimboeuf 2016-10-27 86 6b4d2348 Masami Hiramatsu 2017-07-24 87 bool in_entry_code(unsigned long ip) a8b7a923 Josh Poimboeuf 2017-04-12 88 { a8b7a923 Josh Poimboeuf 2017-04-12 89 char *addr = (char *)ip; a8b7a923 Josh Poimboeuf 2017-04-12 90 a8b7a923 Josh Poimboeuf 2017-04-12 91 if (addr >= __entry_text_start && addr < __entry_text_end) a8b7a923 Josh Poimboeuf 2017-04-12 92 return true; a8b7a923 Josh Poimboeuf 2017-04-12 93 6b4d2348 Masami Hiramatsu 2017-07-24 94 #if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN) || defined(CONFIG_KPROBES) a8b7a923 Josh Poimboeuf 2017-04-12 @95 if (addr >= __irqentry_text_start && addr < __irqentry_text_end) a8b7a923 Josh Poimboeuf 2017-04-12 96 return true; a8b7a923 Josh Poimboeuf 2017-04-12 97 #endif a8b7a923 Josh Poimboeuf 2017-04-12 98 a8b7a923 Josh Poimboeuf 2017-04-12 99 return false; a8b7a923 Josh Poimboeuf 2017-04-12 100 } a8b7a923 Josh Poimboeuf 2017-04-12 101 :::::: The code at line 95 was first introduced by commit :::::: a8b7a92318b6d7779f6d8e9aa6ba0e3de01a8943 x86/unwind: Silence entry-related warnings :::::: TO: Josh Poimboeuf <[email protected]> :::::: CC: Ingo Molnar <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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