Messages in this thread | | | Date | Fri, 5 Apr 2019 06:57:51 +0800 | From | kbuild test robot <> | Subject | [tip:WIP.x86/stackguards 19/29] arch/x86//kernel/nmi.c:493:52: error: 'cea_exception_stacks' undeclared |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/stackguards head: f06282dacdf39de480ede989a689743402e1110c commit: 2e2333a2ed97c5df6bac64f689a1d4695e8e9ec9 [19/29] x86/exceptions: Split debug IST stack config: x86_64-randconfig-x003-201913 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: git checkout 2e2333a2ed97c5df6bac64f689a1d4695e8e9ec9 # save the attached .config to linux build tree make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
In file included from include/asm-generic/percpu.h:7:0, from arch/x86/include/asm/percpu.h:544, from arch/x86/include/asm/preempt.h:6, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from arch/x86//kernel/nmi.c:13: arch/x86//kernel/nmi.c: In function 'is_debug_stack': >> arch/x86//kernel/nmi.c:493:52: error: 'cea_exception_stacks' undeclared (first use in this function) struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^ include/linux/percpu-defs.h:318:9: note: in definition of macro '__pcpu_size_call_return' typeof(variable) pscr_ret__; \ ^~~~~~~~ >> include/linux/percpu-defs.h:446:2: note: in expansion of macro 'raw_cpu_read' raw_cpu_read(pcp); \ ^~~~~~~~~~~~ >> arch/x86//kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ arch/x86//kernel/nmi.c:493:52: note: each undeclared identifier is reported only once for each function it appears in struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^ include/linux/percpu-defs.h:318:9: note: in definition of macro '__pcpu_size_call_return' typeof(variable) pscr_ret__; \ ^~~~~~~~ >> include/linux/percpu-defs.h:446:2: note: in expansion of macro 'raw_cpu_read' raw_cpu_read(pcp); \ ^~~~~~~~~~~~ >> arch/x86//kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ >> include/linux/percpu-defs.h:444:1: warning: initialization makes pointer from integer without a cast [-Wint-conversion] ({ \ ^ >> arch/x86//kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ >> arch/x86//kernel/nmi.c:494:22: error: implicit declaration of function 'CEA_ESTACK_TOP'; did you mean 'STACK_TOP'? [-Werror=implicit-function-declaration] unsigned long top = CEA_ESTACK_TOP(cs, DB); ^~~~~~~~~~~~~~ STACK_TOP >> arch/x86//kernel/nmi.c:494:41: error: 'DB' undeclared (first use in this function) unsigned long top = CEA_ESTACK_TOP(cs, DB); ^~ >> arch/x86//kernel/nmi.c:495:22: error: implicit declaration of function 'CEA_ESTACK_BOT'; did you mean 'STACK_TOP'? [-Werror=implicit-function-declaration] unsigned long bot = CEA_ESTACK_BOT(cs, DB1); ^~~~~~~~~~~~~~ STACK_TOP >> arch/x86//kernel/nmi.c:495:41: error: 'DB1' undeclared (first use in this function); did you mean 'DB'? unsigned long bot = CEA_ESTACK_BOT(cs, DB1); ^~~ DB cc1: some warnings being treated as errors -- In file included from include/asm-generic/percpu.h:7:0, from arch/x86/include/asm/percpu.h:544, from arch/x86/include/asm/preempt.h:6, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from arch/x86/kernel/nmi.c:13: arch/x86/kernel/nmi.c: In function 'is_debug_stack': arch/x86/kernel/nmi.c:493:52: error: 'cea_exception_stacks' undeclared (first use in this function) struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^ include/linux/percpu-defs.h:318:9: note: in definition of macro '__pcpu_size_call_return' typeof(variable) pscr_ret__; \ ^~~~~~~~ >> include/linux/percpu-defs.h:446:2: note: in expansion of macro 'raw_cpu_read' raw_cpu_read(pcp); \ ^~~~~~~~~~~~ arch/x86/kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ arch/x86/kernel/nmi.c:493:52: note: each undeclared identifier is reported only once for each function it appears in struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^ include/linux/percpu-defs.h:318:9: note: in definition of macro '__pcpu_size_call_return' typeof(variable) pscr_ret__; \ ^~~~~~~~ >> include/linux/percpu-defs.h:446:2: note: in expansion of macro 'raw_cpu_read' raw_cpu_read(pcp); \ ^~~~~~~~~~~~ arch/x86/kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ >> include/linux/percpu-defs.h:444:1: warning: initialization makes pointer from integer without a cast [-Wint-conversion] ({ \ ^ arch/x86/kernel/nmi.c:493:36: note: in expansion of macro '__this_cpu_read' struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); ^~~~~~~~~~~~~~~ arch/x86/kernel/nmi.c:494:22: error: implicit declaration of function 'CEA_ESTACK_TOP'; did you mean 'STACK_TOP'? [-Werror=implicit-function-declaration] unsigned long top = CEA_ESTACK_TOP(cs, DB); ^~~~~~~~~~~~~~ STACK_TOP arch/x86/kernel/nmi.c:494:41: error: 'DB' undeclared (first use in this function) unsigned long top = CEA_ESTACK_TOP(cs, DB); ^~ arch/x86/kernel/nmi.c:495:22: error: implicit declaration of function 'CEA_ESTACK_BOT'; did you mean 'STACK_TOP'? [-Werror=implicit-function-declaration] unsigned long bot = CEA_ESTACK_BOT(cs, DB1); ^~~~~~~~~~~~~~ STACK_TOP arch/x86/kernel/nmi.c:495:41: error: 'DB1' undeclared (first use in this function); did you mean 'DB'? unsigned long bot = CEA_ESTACK_BOT(cs, DB1); ^~~ DB cc1: some warnings being treated as errors
vim +/cea_exception_stacks +493 arch/x86//kernel/nmi.c
490 491 static bool notrace is_debug_stack(unsigned long addr) 492 { > 493 struct cea_exception_stacks *cs = __this_cpu_read(cea_exception_stacks); > 494 unsigned long top = CEA_ESTACK_TOP(cs, DB); > 495 unsigned long bot = CEA_ESTACK_BOT(cs, DB1); 496 497 if (__this_cpu_read(debug_stack_usage)) 498 return true; 499 /* 500 * Note, this covers the guard page between DB and DB1 as well to 501 * avoid two checks. But by all means @addr can never point into 502 * the guard page. 503 */ 504 return addr > bot && addr < top; 505 } 506 NOKPROBE_SYMBOL(is_debug_stack); 507 #endif 508
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