diff options
| -rw-r--r-- | tools/perf/Documentation/perf-record.txt | 10 | ||||
| -rw-r--r-- | tools/perf/builtin-record.c | 16 |
2 files changed, 24 insertions, 2 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index e630a7d2c348..8d032f4e50bf 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -314,11 +314,17 @@ This option sets the time out limit. The default value is 500 ms. Record context switch events i.e. events of type PERF_RECORD_SWITCH or PERF_RECORD_SWITCH_CPU_WIDE. ---clang-path:: +--clang-path=PATH:: Path to clang binary to use for compiling BPF scriptlets. +(enabled when BPF support is on) ---clang-opt:: +--clang-opt=OPTIONS:: Options passed to clang when compiling BPF scriptlets. +(enabled when BPF support is on) + +--vmlinux=PATH:: +Specify vmlinux path which has debuginfo. +(enabled when BPF prologue is on) SEE ALSO -------- diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index c2ba377e8d3a..3ef3c79e7534 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1117,6 +1117,8 @@ struct option __record_options[] = { "clang binary to use for compiling BPF scriptlets"), OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options", "options passed to clang when compiling BPF scriptlets"), + OPT_STRING(0, "vmlinux", &symbol_conf.vmlinux_name, + "file", "vmlinux pathname"), OPT_END() }; @@ -1135,6 +1137,20 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) # undef set_nobuild #endif +#ifndef HAVE_BPF_PROLOGUE +# if !defined (HAVE_DWARF_SUPPORT) +# define REASON "NO_DWARF=1" +# elif !defined (HAVE_LIBBPF_SUPPORT) +# define REASON "NO_LIBBPF=1" +# else +# define REASON "this architecture doesn't support BPF prologue" +# endif +# define set_nobuild(s, l, c) set_option_nobuild(record_options, s, l, REASON, c) + set_nobuild('\0', "vmlinux", true); +# undef set_nobuild +# undef REASON +#endif + rec->evlist = perf_evlist__new(); if (rec->evlist == NULL) return -ENOMEM; |