diff options
Diffstat (limited to 'kernel/trace/trace_probe.h')
| -rw-r--r-- | kernel/trace/trace_probe.h | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h index 01ea148723de..850d9ecb6765 100644 --- a/kernel/trace/trace_probe.h +++ b/kernel/trace/trace_probe.h @@ -383,9 +383,15 @@ static inline bool tparg_is_function_entry(unsigned int flags) struct traceprobe_parse_context { struct trace_event_call *event; - const struct btf_param *params; - s32 nr_params; - const char *funcname; + /* BTF related parameters */ + const char *funcname; /* Function name in BTF */ + const struct btf_type *proto; /* Prototype of the function */ + const struct btf_param *params; /* Parameter of the function */ + s32 nr_params; /* The number of the parameters */ + struct btf *btf; /* The BTF to be used */ + const struct btf_type *last_type; /* Saved type */ + u32 last_bitoffs; /* Saved bitoffs */ + u32 last_bitsize; /* Saved bitsize */ unsigned int flags; int offset; }; @@ -400,6 +406,12 @@ const char **traceprobe_expand_meta_args(int argc, const char *argv[], extern int traceprobe_update_arg(struct probe_arg *arg); extern void traceprobe_free_probe_arg(struct probe_arg *arg); +/* + * If either traceprobe_parse_probe_arg() or traceprobe_expand_meta_args() is called, + * this MUST be called for clean up the context and return a resource. + */ +void traceprobe_finish_parse(struct traceprobe_parse_context *ctx); + extern int traceprobe_split_symbol_offset(char *symbol, long *offset); int traceprobe_parse_event_name(const char **pevent, const char **pgroup, char *buf, int offset); @@ -438,6 +450,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call, C(BAD_MAXACT, "Invalid maxactive number"), \ C(MAXACT_TOO_BIG, "Maxactive is too big"), \ C(BAD_PROBE_ADDR, "Invalid probed address or symbol"), \ + C(NON_UNIQ_SYMBOL, "The symbol is not unique"), \ C(BAD_RETPROBE, "Retprobe address must be an function entry"), \ C(NO_TRACEPOINT, "Tracepoint is not found"), \ C(BAD_ADDR_SUFFIX, "Invalid probed address suffix"), \ @@ -495,7 +508,14 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call, C(BAD_VAR_ARGS, "$arg* must be an independent parameter without name etc."),\ C(NOFENTRY_ARGS, "$arg* can be used only on function entry"), \ C(DOUBLE_ARGS, "$arg* can be used only once in the parameters"), \ - C(ARGS_2LONG, "$arg* failed because the argument list is too long"), + C(ARGS_2LONG, "$arg* failed because the argument list is too long"), \ + C(ARGIDX_2BIG, "$argN index is too big"), \ + C(NO_PTR_STRCT, "This is not a pointer to union/structure."), \ + C(NOSUP_DAT_ARG, "Non pointer structure/union argument is not supported."),\ + C(BAD_HYPHEN, "Failed to parse single hyphen. Forgot '>'?"), \ + C(NO_BTF_FIELD, "This field is not found."), \ + C(BAD_BTF_TID, "Failed to get BTF type info."),\ + C(BAD_TYPE4STR, "This type does not fit for string."), #undef C #define C(a, b) TP_ERR_##a @@ -519,3 +539,8 @@ void __trace_probe_log_err(int offset, int err); #define trace_probe_log_err(offs, err) \ __trace_probe_log_err(offs, TP_ERR_##err) + +struct uprobe_dispatch_data { + struct trace_uprobe *tu; + unsigned long bp_addr; +}; |