From 6cd99d21741dbffb40e28ab7d955b27d09c3352f Mon Sep 17 00:00:00 2001 From: Tzvetomir Stoyanov Date: Fri, 30 Nov 2018 10:44:10 -0500 Subject: tools lib traceevent: traceevent API cleanup In order to make libtraceevent into a proper library, its API should be straightforward. This patch hides few API functions, intended for internal usage only: tep_free_event(), tep_free_format_field(), __tep_data2host2(), __tep_data2host4() and __tep_data2host8(). The patch also alignes the libtraceevent summary man page with these API changes. Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20181130154647.891651290@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo --- tools/lib/traceevent/event-parse-api.c | 6 +++--- tools/lib/traceevent/event-parse-local.h | 7 +++++++ tools/lib/traceevent/event-parse.c | 13 ++++++++----- tools/lib/traceevent/event-parse.h | 16 ---------------- 4 files changed, 18 insertions(+), 24 deletions(-) diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c index 0dc011154ee9..8b31c0e00ba3 100644 --- a/tools/lib/traceevent/event-parse-api.c +++ b/tools/lib/traceevent/event-parse-api.c @@ -51,7 +51,7 @@ void tep_set_flag(struct tep_handle *tep, int flag) tep->flags |= flag; } -unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data) +unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data) { unsigned short swap; @@ -64,7 +64,7 @@ unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data) return swap; } -unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data) +unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data) { unsigned int swap; @@ -80,7 +80,7 @@ unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data) } unsigned long long -__tep_data2host8(struct tep_handle *pevent, unsigned long long data) +tep_data2host8(struct tep_handle *pevent, unsigned long long data) { unsigned long long swap; diff --git a/tools/lib/traceevent/event-parse-local.h b/tools/lib/traceevent/event-parse-local.h index 94746efef433..9a092dd4a86d 100644 --- a/tools/lib/traceevent/event-parse-local.h +++ b/tools/lib/traceevent/event-parse-local.h @@ -89,4 +89,11 @@ struct tep_handle { char *trace_clock; }; +void tep_free_event(struct tep_event *event); +void tep_free_format_field(struct tep_format_field *field); + +unsigned short tep_data2host2(struct tep_handle *pevent, unsigned short data); +unsigned int tep_data2host4(struct tep_handle *pevent, unsigned int data); +unsigned long long tep_data2host8(struct tep_handle *pevent, unsigned long long data); + #endif /* _PARSE_EVENTS_INT_H */ diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index a3e7d0a75e11..ffa656b868a9 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -3328,15 +3328,18 @@ tep_find_any_field(struct tep_event *event, const char *name) unsigned long long tep_read_number(struct tep_handle *pevent, const void *ptr, int size) { + unsigned long long val; + switch (size) { case 1: return *(unsigned char *)ptr; case 2: - return tep_data2host2(pevent, ptr); + return tep_data2host2(pevent, *(unsigned short *)ptr); case 4: - return tep_data2host4(pevent, ptr); + return tep_data2host4(pevent, *(unsigned int *)ptr); case 8: - return tep_data2host8(pevent, ptr); + memcpy(&val, (ptr), sizeof(unsigned long long)); + return tep_data2host8(pevent, val); default: /* BUG! */ return 0; @@ -4062,7 +4065,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size, f = tep_find_any_field(event, arg->string.string); arg->string.offset = f->offset; } - str_offset = tep_data2host4(pevent, data + arg->string.offset); + str_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->string.offset)); str_offset &= 0xffff; print_str_to_seq(s, format, len_arg, ((char *)data) + str_offset); break; @@ -4080,7 +4083,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size, f = tep_find_any_field(event, arg->bitmask.bitmask); arg->bitmask.offset = f->offset; } - bitmask_offset = tep_data2host4(pevent, data + arg->bitmask.offset); + bitmask_offset = tep_data2host4(pevent, *(unsigned int *)(data + arg->bitmask.offset)); bitmask_size = bitmask_offset >> 16; bitmask_offset &= 0xffff; print_bitmask_to_seq(pevent, s, format, len_arg, diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 950ad185a5c4..35d37087d3c5 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -409,20 +409,6 @@ void tep_print_plugins(struct trace_seq *s, typedef char *(tep_func_resolver_t)(void *priv, unsigned long long *addrp, char **modp); void tep_set_flag(struct tep_handle *tep, int flag); -unsigned short __tep_data2host2(struct tep_handle *pevent, unsigned short data); -unsigned int __tep_data2host4(struct tep_handle *pevent, unsigned int data); -unsigned long long -__tep_data2host8(struct tep_handle *pevent, unsigned long long data); - -#define tep_data2host2(pevent, ptr) __tep_data2host2(pevent, *(unsigned short *)(ptr)) -#define tep_data2host4(pevent, ptr) __tep_data2host4(pevent, *(unsigned int *)(ptr)) -#define tep_data2host8(pevent, ptr) \ -({ \ - unsigned long long __val; \ - \ - memcpy(&__val, (ptr), sizeof(unsigned long long)); \ - __tep_data2host8(pevent, __val); \ -}) static inline int tep_host_bigendian(void) { @@ -475,8 +461,6 @@ enum tep_errno tep_parse_format(struct tep_handle *pevent, struct tep_event **eventp, const char *buf, unsigned long size, const char *sys); -void tep_free_event(struct tep_event *event); -void tep_free_format_field(struct tep_format_field *field); void *tep_get_field_raw(struct trace_seq *s, struct tep_event *event, const char *name, struct tep_record *record, -- cgit v1.2.3