diff options
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 1822fb8a02d2..b091154bc5b5 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -1970,6 +1970,20 @@ static struct extern_desc *find_extern_by_name(const struct bpf_object *obj, return NULL; } +static struct extern_desc *find_extern_by_name_with_len(const struct bpf_object *obj, + const void *name, int len) +{ + const char *ext_name; + int i; + + for (i = 0; i < obj->nr_extern; i++) { + ext_name = obj->externs[i].name; + if (strlen(ext_name) == len && strncmp(ext_name, name, len) == 0) + return &obj->externs[i]; + } + return NULL; +} + static int set_kcfg_value_tri(struct extern_desc *ext, void *ext_val, char value) { @@ -8029,8 +8043,13 @@ static int kallsyms_cb(unsigned long long sym_addr, char sym_type, struct bpf_object *obj = ctx; const struct btf_type *t; struct extern_desc *ext; + char *res; - ext = find_extern_by_name(obj, sym_name); + res = strstr(sym_name, ".llvm."); + if (sym_type == 'd' && res) + ext = find_extern_by_name_with_len(obj, sym_name, res - sym_name); + else + ext = find_extern_by_name(obj, sym_name); if (!ext || ext->type != EXT_KSYM) return 0; |