diff options
Diffstat (limited to 'tools/perf/util/symbol.c')
| -rw-r--r-- | tools/perf/util/symbol.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 0fc9a5410739..aa1b7c12fd61 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -702,6 +702,10 @@ static int map__process_kallsym_symbol(void *arg, const char *name, if (!symbol_type__filter(type)) return 0; + /* Ignore local symbols for ARM modules */ + if (name[0] == '$') + return 0; + /* * module symbols are not sorted so we add all * symbols, setting length to 0, and rely on @@ -2630,3 +2634,25 @@ struct mem_info *mem_info__new(void) refcount_set(&mi->refcnt, 1); return mi; } + +/* + * Checks that user supplied symbol kernel files are accessible because + * the default mechanism for accessing elf files fails silently. i.e. if + * debug syms for a build ID aren't found perf carries on normally. When + * they are user supplied we should assume that the user doesn't want to + * silently fail. + */ +int symbol__validate_sym_arguments(void) +{ + if (symbol_conf.vmlinux_name && + access(symbol_conf.vmlinux_name, R_OK)) { + pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name); + return -EINVAL; + } + if (symbol_conf.kallsyms_name && + access(symbol_conf.kallsyms_name, R_OK)) { + pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name); + return -EINVAL; + } + return 0; +} |