diff options
Diffstat (limited to 'kernel/trace/trace_probe.c')
| -rw-r--r-- | kernel/trace/trace_probe.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 8e526b9286e9..daa9980153af 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -550,7 +550,7 @@ static int parse_probe_vars(char *arg, const struct fetch_type *t, /* Recursive argument parser */ static int parse_probe_arg(char *arg, const struct fetch_type *t, - struct fetch_param *f, bool is_return) + struct fetch_param *f, bool is_return, bool is_kprobe) { unsigned long param; long offset; @@ -558,6 +558,11 @@ static int parse_probe_arg(char *arg, const struct fetch_type *t, int ret; ret = 0; + + /* Until uprobe_events supports only reg arguments */ + if (!is_kprobe && arg[0] != '%') + return -EINVAL; + switch (arg[0]) { case '$': ret = parse_probe_vars(arg + 1, t, f, is_return); @@ -619,7 +624,8 @@ static int parse_probe_arg(char *arg, const struct fetch_type *t, return -ENOMEM; dprm->offset = offset; - ret = parse_probe_arg(arg, t2, &dprm->orig, is_return); + ret = parse_probe_arg(arg, t2, &dprm->orig, is_return, + is_kprobe); if (ret) kfree(dprm); else { @@ -677,7 +683,7 @@ static int __parse_bitfield_probe_arg(const char *bf, /* String length checking wrapper */ int traceprobe_parse_probe_arg(char *arg, ssize_t *size, - struct probe_arg *parg, bool is_return) + struct probe_arg *parg, bool is_return, bool is_kprobe) { const char *t; int ret; @@ -703,7 +709,7 @@ int traceprobe_parse_probe_arg(char *arg, ssize_t *size, } parg->offset = *size; *size += parg->type->size; - ret = parse_probe_arg(arg, parg->type, &parg->fetch, is_return); + ret = parse_probe_arg(arg, parg->type, &parg->fetch, is_return, is_kprobe); if (ret >= 0 && t != NULL) ret = __parse_bitfield_probe_arg(t, parg->type, &parg->fetch); |
