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Message-ID: <202204301323.qB6x1Lyu-lkp@intel.com>
Date: Sat, 30 Apr 2022 13:42:15 +0800
From: kernel test robot <lkp@...el.com>
To: Mark Rutland <mark.rutland@....com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [mark:arm64/stacktrace/speedups 12/12]
arch/arm64/kernel/stacktrace.c:66:13: error: 'tsk' undeclared
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/stacktrace/speedups
head: cdc18713d4c3bb71acf2a7fde076b8cf08975dfd
commit: cdc18713d4c3bb71acf2a7fde076b8cf08975dfd [12/12] WIP: rework stacktrace structure
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20220430/202204301323.qB6x1Lyu-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id=cdc18713d4c3bb71acf2a7fde076b8cf08975dfd
git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git
git fetch --no-tags mark arm64/stacktrace/speedups
git checkout cdc18713d4c3bb71acf2a7fde076b8cf08975dfd
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from include/asm-generic/percpu.h:7,
from arch/arm64/include/asm/percpu.h:248,
from arch/arm64/include/asm/smp.h:28,
from include/linux/smp.h:113,
from include/linux/percpu.h:7,
from include/linux/context_tracking_state.h:5,
from include/linux/hardirq.h:5,
from include/linux/interrupt.h:11,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from arch/arm64/kernel/stacktrace.c:9:
arch/arm64/include/asm/stacktrace.h: In function 'stackinfo_get_sdei_normal':
arch/arm64/include/asm/stacktrace.h:122:57: error: 'sdei_stack_normal_ptr' undeclared (first use in this function)
122 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/percpu-defs.h:318:16: note: in definition of macro '__pcpu_size_call_return'
318 | typeof(variable) pscr_ret__; \
| ^~~~~~~~
arch/arm64/include/asm/stacktrace.h:122:44: note: in expansion of macro 'raw_cpu_read'
122 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
| ^~~~~~~~~~~~
arch/arm64/include/asm/stacktrace.h:122:57: note: each undeclared identifier is reported only once for each function it appears in
122 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/percpu-defs.h:318:16: note: in definition of macro '__pcpu_size_call_return'
318 | typeof(variable) pscr_ret__; \
| ^~~~~~~~
arch/arm64/include/asm/stacktrace.h:122:44: note: in expansion of macro 'raw_cpu_read'
122 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
| ^~~~~~~~~~~~
arch/arm64/include/asm/stacktrace.h: In function 'stackinfo_get_sdei_critical':
arch/arm64/include/asm/stacktrace.h:134:57: error: 'sdei_stack_critical_ptr' undeclared (first use in this function); did you mean 'sdei_shadow_call_stack_critical_ptr'?
134 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr);
| ^~~~~~~~~~~~~~~~~~~~~~~
include/linux/percpu-defs.h:318:16: note: in definition of macro '__pcpu_size_call_return'
318 | typeof(variable) pscr_ret__; \
| ^~~~~~~~
arch/arm64/include/asm/stacktrace.h:134:44: note: in expansion of macro 'raw_cpu_read'
134 | unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr);
| ^~~~~~~~~~~~
arch/arm64/kernel/stacktrace.c: In function 'unwind_frame_record':
>> arch/arm64/kernel/stacktrace.c:66:13: error: 'tsk' undeclared (first use in this function)
66 | if (tsk->ret_stack &&
| ^~~
vim +/tsk +66 arch/arm64/kernel/stacktrace.c
b07f3499661c61 Mark Brown 2021-03-19 50
592700f094be22 Mark Rutland 2019-07-02 51 /*
592700f094be22 Mark Rutland 2019-07-02 52 * Unwind from one frame record (A) to the next frame record (B).
592700f094be22 Mark Rutland 2019-07-02 53 *
592700f094be22 Mark Rutland 2019-07-02 54 * We terminate early if the location of B indicates a malformed chain of frame
592700f094be22 Mark Rutland 2019-07-02 55 * records (e.g. a cycle), determined based on the location and fp value of A
592700f094be22 Mark Rutland 2019-07-02 56 * and the location (but not the fp value) of B.
592700f094be22 Mark Rutland 2019-07-02 57 */
60ffc30d565281 Catalin Marinas 2012-03-05 58
60ffc30d565281 Catalin Marinas 2012-03-05 59
cdc18713d4c3bb Mark Rutland 2022-04-25 60 static notrace int unwind_frame_record(struct unwind_state *state,
cdc18713d4c3bb Mark Rutland 2022-04-25 61 stack_trace_consume_fn consume_entry, void *cookie)
cdc18713d4c3bb Mark Rutland 2022-04-25 62 {
90131eb350137d Madhavan T. Venkataraman 2022-01-17 63 state->pc = ptrauth_strip_insn_pac(state->pc);
c6d3cd32fd0064 Mark Rutland 2021-10-29 64
20380bb390a443 AKASHI Takahiro 2015-12-15 65 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
b5e7307d9d5a34 Mark Rutland 2016-09-23 @66 if (tsk->ret_stack &&
90131eb350137d Madhavan T. Venkataraman 2022-01-17 67 (state->pc == (unsigned long)return_to_handler)) {
c6d3cd32fd0064 Mark Rutland 2021-10-29 68 unsigned long orig_pc;
20380bb390a443 AKASHI Takahiro 2015-12-15 69 /*
20380bb390a443 AKASHI Takahiro 2015-12-15 70 * This is a case where function graph tracer has
20380bb390a443 AKASHI Takahiro 2015-12-15 71 * modified a return address (LR) in a stack frame
20380bb390a443 AKASHI Takahiro 2015-12-15 72 * to hook a function return.
20380bb390a443 AKASHI Takahiro 2015-12-15 73 * So replace it to an original value.
20380bb390a443 AKASHI Takahiro 2015-12-15 74 */
90131eb350137d Madhavan T. Venkataraman 2022-01-17 75 orig_pc = ftrace_graph_ret_addr(tsk, NULL, state->pc,
90131eb350137d Madhavan T. Venkataraman 2022-01-17 76 (void *)state->fp);
90131eb350137d Madhavan T. Venkataraman 2022-01-17 77 if (WARN_ON_ONCE(state->pc == orig_pc))
a448276ce515c9 Steven Rostedt (VMware 2018-12-07 78) return -EINVAL;
90131eb350137d Madhavan T. Venkataraman 2022-01-17 79 state->pc = orig_pc;
20380bb390a443 AKASHI Takahiro 2015-12-15 80 }
20380bb390a443 AKASHI Takahiro 2015-12-15 81 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
cd9bc2c9258816 Masami Hiramatsu 2021-10-21 82 #ifdef CONFIG_KRETPROBES
90131eb350137d Madhavan T. Venkataraman 2022-01-17 83 if (is_kretprobe_trampoline(state->pc))
90131eb350137d Madhavan T. Venkataraman 2022-01-17 84 state->pc = kretprobe_find_ret_addr(tsk, (void *)state->fp, &state->kr_cur);
cd9bc2c9258816 Masami Hiramatsu 2021-10-21 85 #endif
20380bb390a443 AKASHI Takahiro 2015-12-15 86
cdc18713d4c3bb Mark Rutland 2022-04-25 87 if (!consume_entry(cookie, state->pc))
cdc18713d4c3bb Mark Rutland 2022-04-25 88 return -ENOENT;
cdc18713d4c3bb Mark Rutland 2022-04-25 89
60ffc30d565281 Catalin Marinas 2012-03-05 90 return 0;
60ffc30d565281 Catalin Marinas 2012-03-05 91 }
cdc18713d4c3bb Mark Rutland 2022-04-25 92 NOKPROBE_SYMBOL(unwind_frame_record);
60ffc30d565281 Catalin Marinas 2012-03-05 93
:::::: The code at line 66 was first introduced by commit
:::::: b5e7307d9d5a340d2c9fabbe1cee137d4c682c71 arm64: fix dump_backtrace/unwind_frame with NULL tsk
:::::: TO: Mark Rutland <mark.rutland@....com>
:::::: CC: Will Deacon <will.deacon@....com>
--
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