diff options
Diffstat (limited to 'tools/lib/traceevent/event-parse.c')
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 75 |
1 files changed, 74 insertions, 1 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 63d02be5480..b1abd39923d 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -697,6 +697,10 @@ static void free_arg(struct print_arg *arg) free_arg(arg->symbol.field); free_flag_sym(arg->symbol.symbols); break; + case PRINT_HEX: + free_arg(arg->hex.field); + free_arg(arg->hex.size); + break; case PRINT_TYPE: free(arg->typecast.type); free_arg(arg->typecast.item); @@ -2260,6 +2264,45 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok) } static enum event_type +process_hex(struct event_format *event, struct print_arg *arg, char **tok) +{ + struct print_arg *field; + enum event_type type; + char *token; + + memset(arg, 0, sizeof(*arg)); + arg->type = PRINT_HEX; + + field = alloc_arg(); + type = process_arg(event, field, &token); + + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto out_free; + + arg->hex.field = field; + + free_token(token); + + field = alloc_arg(); + type = process_arg(event, field, &token); + + if (test_type_token(type, token, EVENT_DELIM, ")")) + goto out_free; + + arg->hex.size = field; + + free_token(token); + type = read_token_item(tok); + return type; + + out_free: + free_arg(field); + free_token(token); + *tok = NULL; + return EVENT_ERROR; +} + +static enum event_type process_dynamic_array(struct event_format *event, struct print_arg *arg, char **tok) { struct format_field *field; @@ -2488,6 +2531,10 @@ process_function(struct event_format *event, struct print_arg *arg, is_symbolic_field = 1; return process_symbols(event, arg, tok); } + if (strcmp(token, "__print_hex") == 0) { + free_token(token); + return process_hex(event, arg, tok); + } if (strcmp(token, "__get_str") == 0) { free_token(token); return process_str(event, arg, tok); @@ -2995,6 +3042,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg break; case PRINT_FLAGS: case PRINT_SYMBOL: + case PRINT_HEX: break; case PRINT_TYPE: val = eval_num_arg(data, size, event, arg->typecast.item); @@ -3218,8 +3266,9 @@ static void print_str_arg(struct trace_seq *s, void *data, int size, unsigned long long val, fval; unsigned long addr; char *str; + unsigned char *hex; int print; - int len; + int i, len; switch (arg->type) { case PRINT_NULL: @@ -3284,6 +3333,23 @@ static void print_str_arg(struct trace_seq *s, void *data, int size, } } break; + case PRINT_HEX: + field = arg->hex.field->field.field; + if (!field) { + str = arg->hex.field->field.name; + field = pevent_find_any_field(event, str); + if (!field) + die("field %s not found", str); + arg->hex.field->field.field = field; + } + hex = data + field->offset; + len = eval_num_arg(data, size, event, arg->hex.size); + for (i = 0; i < len; i++) { + if (i) + trace_seq_putc(s, ' '); + trace_seq_printf(s, "%02x", hex[i]); + } + break; case PRINT_TYPE: break; @@ -4294,6 +4360,13 @@ static void print_args(struct print_arg *args) trace_seq_destroy(&s); printf(")"); break; + case PRINT_HEX: + printf("__print_hex("); + print_args(args->hex.field); + printf(", "); + print_args(args->hex.size); + printf(")"); + break; case PRINT_STRING: case PRINT_BSTRING: printf("__get_str(%s)", args->string.string); |