* Re: [RFC PATCH] function_graph: Support recording and printing the function return address
[not found] <20240908142544.1409032-1-dolinux.peng@gmail.com>
@ 2024-09-11 3:38 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-09-11 3:38 UTC (permalink / raw)
To: Donglin Peng; +Cc: llvm, oe-kbuild-all
Hi Donglin,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on linus/master]
[also build test ERROR on v6.11-rc7]
[cannot apply to next-20240910]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Donglin-Peng/function_graph-Support-recording-and-printing-the-function-return-address/20240908-222737
base: linus/master
patch link: https://lore.kernel.org/r/20240908142544.1409032-1-dolinux.peng%40gmail.com
patch subject: [RFC PATCH] function_graph: Support recording and printing the function return address
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20240911/202409111115.i1L43FTN-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240911/202409111115.i1L43FTN-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409111115.i1L43FTN-lkp@intel.com/
All errors (new ones prefixed by >>):
>> kernel/trace/trace_functions_graph.c:830:3: error: call to undeclared function 'print_graph_retaddr'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
830 | print_graph_retaddr(s, call, tr->trace_flags, true);
| ^
1 error generated.
vim +/print_graph_retaddr +830 kernel/trace/trace_functions_graph.c
797
798 static enum print_line_t
799 print_graph_entry_nested(struct trace_iterator *iter,
800 struct ftrace_graph_ent_entry *entry,
801 struct trace_seq *s, int cpu, u32 flags)
802 {
803 struct ftrace_graph_ent *call = &entry->graph_ent;
804 struct fgraph_data *data = iter->private;
805 struct trace_array *tr = iter->tr;
806 int i;
807
808 if (data) {
809 struct fgraph_cpu_data *cpu_data;
810 int cpu = iter->cpu;
811
812 cpu_data = per_cpu_ptr(data->cpu_data, cpu);
813 cpu_data->depth = call->depth;
814
815 /* Save this function pointer to see if the exit matches */
816 if (call->depth < FTRACE_RETFUNC_DEPTH &&
817 !WARN_ON_ONCE(call->depth < 0))
818 cpu_data->enter_funcs[call->depth] = call->func;
819 }
820
821 /* No time */
822 print_graph_duration(tr, 0, s, flags | FLAGS_FILL_FULL);
823
824 /* Function */
825 for (i = 0; i < call->depth * TRACE_GRAPH_INDENT; i++)
826 trace_seq_putc(s, ' ');
827
828 trace_seq_printf(s, "%ps() {", (void *)call->func);
829 if (flags & __TRACE_GRAPH_PRINT_RETADDR)
> 830 print_graph_retaddr(s, call, tr->trace_flags, true);
831 trace_seq_putc(s, '\n');
832
833 if (trace_seq_has_overflowed(s))
834 return TRACE_TYPE_PARTIAL_LINE;
835
836 /*
837 * we already consumed the current entry to check the next one
838 * and see if this is a leaf.
839 */
840 return TRACE_TYPE_NO_CONSUME;
841 }
842
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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