From dc6519445b33bcd9c0ce69c914979a3c0c6e80ce Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Sun, 9 Jul 2023 02:56:22 +0000 Subject: bpftool: Dump the kernel symbol's module name If the kernel symbol is in a module, we will dump the module name as well. The square brackets around the module name are trimmed. Signed-off-by: Yafang Shao Reviewed-by: Quentin Monnet Acked-by: Jiri Olsa Link: https://lore.kernel.org/r/20230709025630.3735-3-laoar.shao@gmail.com Signed-off-by: Alexei Starovoitov --- tools/bpf/bpftool/xlated_dumper.c | 6 +++++- tools/bpf/bpftool/xlated_dumper.h | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/bpf/bpftool/xlated_dumper.c b/tools/bpf/bpftool/xlated_dumper.c index da608e10c843..567f56dfd9f1 100644 --- a/tools/bpf/bpftool/xlated_dumper.c +++ b/tools/bpf/bpftool/xlated_dumper.c @@ -46,7 +46,11 @@ out: } dd->sym_mapping = tmp; sym = &dd->sym_mapping[dd->sym_count]; - if (sscanf(buff, "%p %*c %s", &address, sym->name) != 2) + + /* module is optional */ + sym->module[0] = '\0'; + /* trim the square brackets around the module name */ + if (sscanf(buff, "%p %*c %s [%[^]]s", &address, sym->name, sym->module) < 2) continue; sym->address = (unsigned long)address; if (!strcmp(sym->name, "__bpf_call_base")) { diff --git a/tools/bpf/bpftool/xlated_dumper.h b/tools/bpf/bpftool/xlated_dumper.h index 9a946377b0e6..db3ba0671501 100644 --- a/tools/bpf/bpftool/xlated_dumper.h +++ b/tools/bpf/bpftool/xlated_dumper.h @@ -5,12 +5,14 @@ #define __BPF_TOOL_XLATED_DUMPER_H #define SYM_MAX_NAME 256 +#define MODULE_MAX_NAME 64 struct bpf_prog_linfo; struct kernel_sym { unsigned long address; char name[SYM_MAX_NAME]; + char module[MODULE_MAX_NAME]; }; struct dump_data { -- cgit