On Tue, 2022-09-27 at 09:13 +0800, Xiangyu Chen wrote: > Backport patch from upstream to handle negative time and offset from Epoch[1] > and fix the yocto autobuilder ptest failures for both qemux86-64 and > qemuarm64 when > applied this backport patch[2]. > > [1] 0001-Handle-negative-time-and-offset-from-Epoch.patch backport from > https://git.efficios.com/?p=babeltrace.git;a=commit;h=61cf588beae752e5ddfc60b6b5310f769ac9e852 > > [2] 0002-babeltrace-fix-bug-in-stream-intersection-option.patch > The failures reported at > https://lists.openembedded.org/g/openembedded-core/topic/89657972#163126 > > Signed-off-by: Xiangyu Chen <xiangyu.c...@windriver.com> > --- > ...-negative-time-and-offset-from-Epoch.patch | 857 ++++++++++++++++++ > ...ix-bug-in-stream-intersection-option.patch | 114 +++ > meta/recipes-kernel/lttng/babeltrace_1.5.8.bb | 2 + > 3 files changed, 973 insertions(+) > create mode 100644 > meta/recipes-kernel/lttng/babeltrace/0001-Handle-negative-time-and-offset-from-Epoch.patch > create mode 100644 > meta/recipes-kernel/lttng/babeltrace/0002-babeltrace-fix-bug-in-stream-intersection-option.patch > > diff --git > a/meta/recipes-kernel/lttng/babeltrace/0001-Handle-negative-time-and-offset-from-Epoch.patch > > b/meta/recipes-kernel/lttng/babeltrace/0001-Handle-negative-time-and-offset-from-Epoch.patch > new file mode 100644 > index 0000000000..c7409bcfbb > --- /dev/null > +++ > b/meta/recipes-kernel/lttng/babeltrace/0001-Handle-negative-time-and-offset-from-Epoch.patch > @@ -0,0 +1,857 @@ > +From a8305ca6fc9b32b22bedbc96a8f71b14243e9965 Mon Sep 17 00:00:00 2001 > +From: Mathieu Desnoyers <mathieu.desnoy...@efficios.com> > +Date: Wed, 22 Apr 2020 03:00:02 +0000 > +Subject: [PATCH 1/2] Handle negative time and offset from Epoch > +MIME-Version: 1.0 > +Content-Type: text/plain; charset=UTF-8 > +Content-Transfer-Encoding: 8bit > + > +Handle cases where a trace have a negative offset from Epoch. > +If Epoch is arbitrary (e.g. embedded system starting at 0, without any > +network access), the "0" can be used as correlation point between > +various components, and some components could start before the > +correlation point. Therefore, especially in traces where the time is > +meant to be shown in nanoseconds or cycles from the correlation point, > +it also makes sense to have a negative time value. > + > +It introduces API-breaking changes in the C and Python APIs, since we > +need to be able to return negative time values, which were previously > +used as errors (-1ULL). > + > +The --offset and --offset-ns command line parameters can now take > +negative offset (seconds and nanoseconds) values too. > + > +The [sec.ns] format is used as fallback so we don't attempt to pass > +a negative time value to POSIX time-formatting APIs. > + > +This also fixes an inaccurate return value in an error path of > +bt_ctf_event_populate_event_header(). > + > +Signed-off-by: Mathieu Desnoyers <mathieu.desnoy...@efficios.com> > +Signed-off-by: Jérémie Galarneau <jeremie.galarn...@efficios.com> > + > +Upstream-Status: Backport > [https://git.efficios.com/?p=babeltrace.git;a=commit;h=61cf588beae752e5ddfc60b6b5310f769ac9e852] > + > +Signed-off-by: He Zhe <zhe...@windriver.com> > +Signed-off-by: Xiangyu Chen <xiangyu.c...@windriver.com> > +--- > + converter/babeltrace.c | 4 +- > + formats/ctf-text/ctf-text.c | 2 +- > + formats/ctf/ctf.c | 115 +++++++++++++----- > + formats/ctf/events-private.h | 10 +- > + formats/ctf/events.c | 11 +- > + .../metadata/ctf-visitor-generate-io-struct.c | 1 - > + include/babeltrace/babeltrace-internal.h | 8 +- > + include/babeltrace/clock-internal.h | 2 +- > + include/babeltrace/ctf-ir/clock-internal.h | 2 +- > + include/babeltrace/ctf/events.h | 8 +- > + include/babeltrace/ctf/types.h | 6 +- > + include/babeltrace/format.h | 10 +- > + include/babeltrace/trace-handle-internal.h | 8 +- > + include/babeltrace/trace-handle.h | 25 ++-- > + lib/context.c | 44 +++++-- > + lib/trace-handle.c | 39 +++--- > + tests/lib/test_ctf_writer.c | 6 +- > + tests/lib/test_seek.c | 28 ++--- > + 18 files changed, 209 insertions(+), 120 deletions(-) > + > +diff --git a/converter/babeltrace.c b/converter/babeltrace.c > +index ef783ed4..2ac16179 100644 > +--- a/converter/babeltrace.c > ++++ b/converter/babeltrace.c > +@@ -375,7 +375,7 @@ static int parse_options(int argc, char **argv) > + goto end; > + } > + errno = 0; > +- opt_clock_offset = strtoull(str, &endptr, 0); > ++ opt_clock_offset = strtoll(str, &endptr, 0); > + if (*endptr != '\0' || str == endptr || errno != 0) { > + fprintf(stderr, "[error] Incorrect > --clock-offset argument: %s\n", str); > + ret = -EINVAL; > +@@ -400,7 +400,7 @@ static int parse_options(int argc, char **argv) > + goto end; > + } > + errno = 0; > +- opt_clock_offset_ns = strtoull(str, &endptr, 0); > ++ opt_clock_offset_ns = strtoll(str, &endptr, 0); > + if (*endptr != '\0' || str == endptr || errno != 0) { > + fprintf(stderr, "[error] Incorrect > --clock-offset-ns argument: %s\n", str); > + ret = -EINVAL; > +diff --git a/formats/ctf-text/ctf-text.c b/formats/ctf-text/ctf-text.c > +index 16f156de..e001a548 100644 > +--- a/formats/ctf-text/ctf-text.c > ++++ b/formats/ctf-text/ctf-text.c > +@@ -43,7 +43,7 @@ > + #include <unistd.h> > + #include <stdlib.h> > + > +-#define NSEC_PER_SEC 1000000000ULL > ++#define NSEC_PER_SEC 1000000000LL > + > + int opt_all_field_names, > + opt_scope_field_names, > +diff --git a/formats/ctf/ctf.c b/formats/ctf/ctf.c > +index 1ba9017f..3c774188 100644 > +--- a/formats/ctf/ctf.c > ++++ b/formats/ctf/ctf.c > +@@ -70,7 +70,7 @@ > + */ > + #define WRITE_PACKET_LEN (getpagesize() * 8 * CHAR_BIT) > + > +-#define NSEC_PER_SEC 1000000000ULL > ++#define NSEC_PER_SEC 1000000000LL > + > + #define INDEX_PATH "./index/%s.idx" > + > +@@ -79,8 +79,8 @@ int opt_clock_cycles, > + opt_clock_date, > + opt_clock_gmt; > + > +-uint64_t opt_clock_offset; > +-uint64_t opt_clock_offset_ns; > ++int64_t opt_clock_offset; > ++int64_t opt_clock_offset_ns; > + > + extern int yydebug; > + char *opt_debug_info_dir; > +@@ -114,11 +114,13 @@ void ctf_set_handle(struct bt_trace_descriptor > *descriptor, > + static > + int ctf_close_trace(struct bt_trace_descriptor *descriptor); > + static > +-uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type type); > ++int ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type type, > ++ int64_t *timestamp); > + static > +-uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type type); > ++int ctf_timestamp_end(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type type, > ++ int64_t *timestamp); > + static > + int ctf_convert_index_timestamp(struct bt_trace_descriptor *tdp); > + > +@@ -167,17 +169,20 @@ void bt_ctf_hook(void) > + } > + > + static > +-uint64_t ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type type) > ++int ctf_timestamp_begin(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type type, > ++ int64_t *timestamp) > + { > + struct ctf_trace *tin; > +- uint64_t begin = ULLONG_MAX; > +- int i, j; > ++ int64_t begin = LLONG_MAX; > ++ int i, j, ret; > + > + tin = container_of(descriptor, struct ctf_trace, parent); > + > +- if (!tin) > ++ if (!tin || !timestamp) { > ++ ret = -EINVAL; > + goto error; > ++ } > + > + /* for each stream_class */ > + for (i = 0; i < tin->streams->len; i++) { > +@@ -198,8 +203,10 @@ uint64_t ctf_timestamp_begin(struct bt_trace_descriptor > *descriptor, > + parent); > + stream_pos = &cfs->pos; > + > +- if (!stream_pos->packet_index) > ++ if (!stream_pos->packet_index) { > ++ ret = -EINVAL; > + goto error; > ++ } > + > + if (stream_pos->packet_index->len <= 0) > + continue; > +@@ -214,29 +221,38 @@ uint64_t ctf_timestamp_begin(struct > bt_trace_descriptor *descriptor, > + if (index->ts_cycles.timestamp_begin < begin) > + begin = > index->ts_cycles.timestamp_begin; > + } else { > ++ ret = -EINVAL; > + goto error; > + } > + } > + } > + > +- return begin; > ++ if (begin == LLONG_MAX) { > ++ ret = -ENOENT; > ++ goto error; > ++ } > ++ *timestamp = begin; > ++ return 0; > + > + error: > +- return -1ULL; > ++ return ret; > + } > + > + static > +-uint64_t ctf_timestamp_end(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type type) > ++int ctf_timestamp_end(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type type, > ++ int64_t *timestamp) > + { > + struct ctf_trace *tin; > +- uint64_t end = 0; > +- int i, j; > ++ int64_t end = LLONG_MIN; > ++ int i, j, ret; > + > + tin = container_of(descriptor, struct ctf_trace, parent); > + > +- if (!tin) > ++ if (!tin || !timestamp) { > ++ ret = -EINVAL; > + goto error; > ++ } > + > + /* for each stream_class */ > + for (i = 0; i < tin->streams->len; i++) { > +@@ -257,8 +273,10 @@ uint64_t ctf_timestamp_end(struct bt_trace_descriptor > *descriptor, > + parent); > + stream_pos = &cfs->pos; > + > +- if (!stream_pos->packet_index) > ++ if (!stream_pos->packet_index) { > ++ ret = -EINVAL; > + goto error; > ++ } > + > + if (stream_pos->packet_index->len <= 0) > + continue; > +@@ -273,15 +291,21 @@ uint64_t ctf_timestamp_end(struct bt_trace_descriptor > *descriptor, > + if (index->ts_cycles.timestamp_end > end) > + end = index->ts_cycles.timestamp_end; > + } else { > ++ ret = -EINVAL; > + goto error; > + } > + } > + } > + > +- return end; > ++ if (end == LLONG_MIN) { > ++ ret = -ENOENT; > ++ goto error; > ++ } > ++ *timestamp = end; > ++ return 0; > + > + error: > +- return -1ULL; > ++ return ret; > + } > + > + /* > +@@ -328,7 +352,9 @@ void ctf_print_timestamp_real(FILE *fp, > + struct ctf_stream_definition *stream, > + uint64_t timestamp) > + { > +- uint64_t ts_sec = 0, ts_nsec; > ++ int64_t ts_sec = 0, ts_nsec; > ++ uint64_t ts_sec_abs, ts_nsec_abs; > ++ bool is_negative; > + > + ts_nsec = timestamp; > + > +@@ -341,9 +367,40 @@ void ctf_print_timestamp_real(FILE *fp, > + ts_sec += ts_nsec / NSEC_PER_SEC; > + ts_nsec = ts_nsec % NSEC_PER_SEC; > + > ++ if (ts_sec >= 0 && ts_nsec >= 0) { > ++ is_negative = false; > ++ ts_sec_abs = ts_sec; > ++ ts_nsec_abs = ts_nsec; > ++ } else if (ts_sec > 0 && ts_nsec < 0) { > ++ is_negative = false; > ++ ts_sec_abs = ts_sec - 1; > ++ ts_nsec_abs = NSEC_PER_SEC + ts_nsec; > ++ } else if (ts_sec == 0 && ts_nsec < 0) { > ++ is_negative = true; > ++ ts_sec_abs = ts_sec; > ++ ts_nsec_abs = -ts_nsec; > ++ } else if (ts_sec < 0 && ts_nsec > 0) { > ++ is_negative = true; > ++ ts_sec_abs = -(ts_sec + 1); > ++ ts_nsec_abs = NSEC_PER_SEC - ts_nsec; > ++ } else if (ts_sec < 0 && ts_nsec == 0) { > ++ is_negative = true; > ++ ts_sec_abs = -ts_sec; > ++ ts_nsec_abs = ts_nsec; > ++ } else { /* (ts_sec < 0 && ts_nsec < 0) */ > ++ is_negative = true; > ++ ts_sec_abs = -ts_sec; > ++ ts_nsec_abs = -ts_nsec; > ++ } > ++ > + if (!opt_clock_seconds) { > + struct tm tm; > +- time_t time_s = (time_t) ts_sec; > ++ time_t time_s = (time_t) ts_sec_abs; > ++ > ++ if (is_negative) { > ++ fprintf(stderr, "[warning] Fallback to [sec.ns] for > printing negative time value. Use --clock-seconds.\n"); > ++ goto seconds; > ++ } > + > + if (!opt_clock_gmt) { > + struct tm *res; > +@@ -377,12 +434,12 @@ void ctf_print_timestamp_real(FILE *fp, > + } > + /* Print time in HH:MM:SS.ns */ > + fprintf(fp, "%02d:%02d:%02d.%09" PRIu64, > +- tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec); > ++ tm.tm_hour, tm.tm_min, tm.tm_sec, ts_nsec_abs); > + goto end; > + } > + seconds: > +- fprintf(fp, "%3" PRIu64 ".%09" PRIu64, > +- ts_sec, ts_nsec); > ++ fprintf(fp, "%s%" PRId64 ".%09" PRIu64, > ++ is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs); > + > + end: > + return; > +@@ -401,7 +458,7 @@ void ctf_print_timestamp_cycles(FILE *fp, > + > + void ctf_print_timestamp(FILE *fp, > + struct ctf_stream_definition *stream, > +- uint64_t timestamp) > ++ int64_t timestamp) > + { > + if (opt_clock_cycles) { > + ctf_print_timestamp_cycles(fp, stream, timestamp); > +diff --git a/formats/ctf/events-private.h b/formats/ctf/events-private.h > +index 9bea75d4..c47fd7d8 100644 > +--- a/formats/ctf/events-private.h > ++++ b/formats/ctf/events-private.h > +@@ -35,20 +35,20 @@ > + #include <babeltrace/clock-internal.h> > + > + static inline > +-uint64_t ctf_get_real_timestamp(struct ctf_stream_definition *stream, > +- uint64_t timestamp) > ++int64_t ctf_get_real_timestamp(struct ctf_stream_definition *stream, > ++ uint64_t ts_cycles) > + { > +- uint64_t ts_nsec; > ++ int64_t ts_nsec; > + struct ctf_trace *trace = stream->stream_class->trace; > + struct trace_collection *tc = trace->parent.collection; > +- uint64_t tc_offset; > ++ int64_t tc_offset; > + > + if (tc->clock_use_offset_avg) > + tc_offset = tc->single_clock_offset_avg; > + else > + tc_offset = clock_offset_ns(trace->parent.single_clock); > + > +- ts_nsec = clock_cycles_to_ns(stream->current_clock, timestamp); > ++ ts_nsec = clock_cycles_to_ns(stream->current_clock, ts_cycles); > + ts_nsec += tc_offset; /* Add offset */ > + return ts_nsec; > + } > +diff --git a/formats/ctf/events.c b/formats/ctf/events.c > +index bd195b93..c5aefd82 100644 > +--- a/formats/ctf/events.c > ++++ b/formats/ctf/events.c > +@@ -315,18 +315,19 @@ int bt_ctf_event_get_handle_id(const struct > bt_ctf_event *ctf_event) > + return ret; > + } > + > +-uint64_t bt_ctf_get_timestamp(const struct bt_ctf_event *ctf_event) > ++int bt_ctf_get_timestamp(const struct bt_ctf_event *ctf_event, int64_t > *timestamp) > + { > + const struct ctf_event_definition *event; > + > +- if (!ctf_event) > +- return -1ULL; > ++ if (!ctf_event || !timestamp) > ++ return -1; > + > + event = ctf_event->parent; > + if (event && event->stream->has_timestamp) > +- return event->stream->real_timestamp; > ++ *timestamp = event->stream->real_timestamp; > + else > +- return -1ULL; > ++ return -1; > ++ return 0; > + } > + > + uint64_t bt_ctf_get_cycles(const struct bt_ctf_event *ctf_event) > +diff --git a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c > b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c > +index 8d348d66..dd8374fc 100644 > +--- a/formats/ctf/metadata/ctf-visitor-generate-io-struct.c > ++++ b/formats/ctf/metadata/ctf-visitor-generate-io-struct.c > +@@ -219,7 +219,6 @@ int get_unary_signed(struct bt_list_head *head, int64_t > *value) > + > + bt_list_for_each_entry(node, head, siblings) { > + if (node->type != NODE_UNARY_EXPRESSION > +- || node->u.unary_expression.type != > UNARY_UNSIGNED_CONSTANT > + || (node->u.unary_expression.type != > UNARY_UNSIGNED_CONSTANT && node->u.unary_expression.type != > UNARY_SIGNED_CONSTANT) > + || node->u.unary_expression.link != > UNARY_LINK_UNKNOWN > + || i != 0) > +diff --git a/include/babeltrace/babeltrace-internal.h > b/include/babeltrace/babeltrace-internal.h > +index 6f8e2006..3e137e4c 100644 > +--- a/include/babeltrace/babeltrace-internal.h > ++++ b/include/babeltrace/babeltrace-internal.h > +@@ -178,8 +178,8 @@ struct trace_collection { > + GPtrArray *array; /* struct bt_trace_descriptor */ > + GHashTable *clocks; /* struct ctf_clock */ > + > +- uint64_t single_clock_offset_avg; > +- uint64_t offset_first; > ++ int64_t single_clock_offset_avg; > ++ int64_t offset_first; > + int64_t delta_offset_first_sum; > + int offset_nr; > + int clock_use_offset_avg; > +@@ -208,8 +208,8 @@ extern int opt_all_field_names, > + opt_clock_force_correlate, > + opt_debug_info_full_path; > + > +-extern uint64_t opt_clock_offset; > +-extern uint64_t opt_clock_offset_ns; > ++extern int64_t opt_clock_offset; > ++extern int64_t opt_clock_offset_ns; > + extern int babeltrace_ctf_console_output; > + extern char *opt_debug_info_dir; > + extern char *opt_debug_info_target_prefix; > +diff --git a/include/babeltrace/clock-internal.h > b/include/babeltrace/clock-internal.h > +index cd6bdbae..86954b78 100644 > +--- a/include/babeltrace/clock-internal.h > ++++ b/include/babeltrace/clock-internal.h > +@@ -49,7 +49,7 @@ uint64_t clock_cycles_to_ns(struct ctf_clock *clock, > uint64_t cycles) > + * mantissa. > + */ > + static inline > +-uint64_t clock_offset_ns(struct ctf_clock *clock) > ++int64_t clock_offset_ns(struct ctf_clock *clock) > + { > + return clock->offset_s * 1000000000ULL > + + clock_cycles_to_ns(clock, clock->offset); > +diff --git a/include/babeltrace/ctf-ir/clock-internal.h > b/include/babeltrace/ctf-ir/clock-internal.h > +index 75677707..f1e896b6 100644 > +--- a/include/babeltrace/ctf-ir/clock-internal.h > ++++ b/include/babeltrace/ctf-ir/clock-internal.h > +@@ -42,7 +42,7 @@ struct bt_ctf_clock { > + uint64_t precision; > + int64_t offset_s; /* Offset in seconds */ > + int64_t offset; /* Offset in ticks */ > +- uint64_t value; /* Current clock value */ > ++ int64_t value; /* Current clock value */ > + uuid_t uuid; > + int uuid_set; > + int absolute; > +diff --git a/include/babeltrace/ctf/events.h > b/include/babeltrace/ctf/events.h > +index c81d8852..15830a30 100644 > +--- a/include/babeltrace/ctf/events.h > ++++ b/include/babeltrace/ctf/events.h > +@@ -109,10 +109,12 @@ const char *bt_ctf_event_name(const struct > bt_ctf_event *event); > + uint64_t bt_ctf_get_cycles(const struct bt_ctf_event *event); > + > + /* > +- * bt_ctf_get_timestamp: returns the timestamp of the event offsetted > +- * with the system clock source (in ns) or -1ULL on error > ++ * bt_ctf_get_timestamp: get the timestamp of the event offsetted > ++ * with the system clock source (in ns) in *timestamp. > ++ * > ++ * Return 0 on success, or -1ULL on error. > + */ > +-uint64_t bt_ctf_get_timestamp(const struct bt_ctf_event *event); > ++int bt_ctf_get_timestamp(const struct bt_ctf_event *event, int64_t > *timestamp); > + > + /* > + * bt_ctf_get_field_list: obtain the list of fields for compound type > +diff --git a/include/babeltrace/ctf/types.h b/include/babeltrace/ctf/types.h > +index 0bc003c8..4b626b39 100644 > +--- a/include/babeltrace/ctf/types.h > ++++ b/include/babeltrace/ctf/types.h > +@@ -46,8 +46,8 @@ > + struct bt_stream_callbacks; > + > + struct packet_index_time { > +- uint64_t timestamp_begin; > +- uint64_t timestamp_end; > ++ int64_t timestamp_begin; > ++ int64_t timestamp_end; > + }; > + > + struct packet_index { > +@@ -253,7 +253,7 @@ int ctf_pos_get_event(struct ctf_stream_pos *pos) > + } > + > + void ctf_print_timestamp(FILE *fp, struct ctf_stream_definition *stream, > +- uint64_t timestamp); > ++ int64_t timestamp); > + int ctf_append_trace_metadata(struct bt_trace_descriptor *tdp, > + FILE *metadata_fp); > + void ctf_print_discarded_lost(FILE *fp, struct ctf_stream_definition > *stream); > +diff --git a/include/babeltrace/format.h b/include/babeltrace/format.h > +index dea8e0e5..bf33a239 100644 > +--- a/include/babeltrace/format.h > ++++ b/include/babeltrace/format.h > +@@ -73,10 +73,12 @@ struct bt_format { > + struct bt_context *ctx); > + void (*set_handle)(struct bt_trace_descriptor *descriptor, > + struct bt_trace_handle *handle); > +- uint64_t (*timestamp_begin)(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type > type); > +- uint64_t (*timestamp_end)(struct bt_trace_descriptor *descriptor, > +- struct bt_trace_handle *handle, enum bt_clock_type > type); > ++ int (*timestamp_begin)(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type > type, > ++ int64_t *timestamp); > ++ int (*timestamp_end)(struct bt_trace_descriptor *descriptor, > ++ struct bt_trace_handle *handle, enum bt_clock_type > type, > ++ int64_t *timestamp); > + int (*convert_index_timestamp)(struct bt_trace_descriptor *descriptor); > + }; > + > +diff --git a/include/babeltrace/trace-handle-internal.h > b/include/babeltrace/trace-handle-internal.h > +index 5e9c1c6a..924c730c 100644 > +--- a/include/babeltrace/trace-handle-internal.h > ++++ b/include/babeltrace/trace-handle-internal.h > +@@ -46,10 +46,10 @@ struct bt_trace_handle { > + struct bt_trace_descriptor *td; > + struct bt_format *format; > + char path[PATH_MAX]; > +- uint64_t real_timestamp_begin; > +- uint64_t real_timestamp_end; > +- uint64_t cycles_timestamp_begin; > +- uint64_t cycles_timestamp_end; > ++ int64_t real_timestamp_begin; > ++ int64_t real_timestamp_end; > ++ int64_t cycles_timestamp_begin; > ++ int64_t cycles_timestamp_end; > + }; > + > + /* > +diff --git a/include/babeltrace/trace-handle.h > b/include/babeltrace/trace-handle.h > +index 96e4a81b..55c850f8 100644 > +--- a/include/babeltrace/trace-handle.h > ++++ b/include/babeltrace/trace-handle.h > +@@ -53,20 +53,25 @@ struct bt_ctf_event; > + const char *bt_trace_handle_get_path(struct bt_context *ctx, int handle_id); > + > + /* > +- * bt_trace_handle_get_timestamp_begin : returns the creation time (in > +- * nanoseconds or cycles depending on type) of the buffers of a trace > +- * or -1ULL on error. > ++ * bt_trace_handle_get_timestamp_begin : get the creation time (in > ++ * nanoseconds or cycles depending on type) of the buffers of a trace. > ++ * > ++ * Returns 0 on success, -1 on error. > + */ > +-uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx, > +- int handle_id, enum bt_clock_type type); > ++int bt_trace_handle_get_timestamp_begin(struct bt_context *ctx, > ++ int handle_id, enum bt_clock_type type, > ++ int64_t *timestamp); > + > + /* > +- * bt_trace_handle_get_timestamp_end : returns the destruction timestamp > +- * (in nanoseconds or cycles depending on type) of the buffers of a trace > +- * or -1ULL on error. > ++ * bt_trace_handle_get_timestamp_end : get the destruction time > ++ * (in nanoseconds or cycles depending on type) of the buffers of a > ++ * trace. > ++ * > ++ * Returns 0 on success, -1 on error. > + */ > +-uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx, > +- int handle_id, enum bt_clock_type type); > ++int bt_trace_handle_get_timestamp_end(struct bt_context *ctx, > ++ int handle_id, enum bt_clock_type type, > ++ int64_t *timestamp); > + > + /* > + * bt_ctf_event_get_handle_id : get the handle id associated with an event > +diff --git a/lib/context.c b/lib/context.c > +index 87901b3c..34a1bc82 100644 > +--- a/lib/context.c > ++++ b/lib/context.c > +@@ -139,18 +139,38 @@ int bt_context_add_trace(struct bt_context *ctx, const > char *path, > + goto error_collection_del; > + } > + > +- if (fmt->timestamp_begin) > +- handle->real_timestamp_begin = fmt->timestamp_begin(td, > +- handle, BT_CLOCK_REAL); > +- if (fmt->timestamp_end) > +- handle->real_timestamp_end = fmt->timestamp_end(td, handle, > +- BT_CLOCK_REAL); > +- if (fmt->timestamp_begin) > +- handle->cycles_timestamp_begin = fmt->timestamp_begin(td, > +- handle, BT_CLOCK_CYCLES); > +- if (fmt->timestamp_end) > +- handle->cycles_timestamp_end = fmt->timestamp_end(td, handle, > +- BT_CLOCK_CYCLES); > ++ if (fmt->timestamp_begin) { > ++ ret = fmt->timestamp_begin(td, handle, BT_CLOCK_REAL, > ++ &handle->real_timestamp_begin); > ++ if (ret < 0 && ret != -ENOENT) { > ++ ret = -1; > ++ goto error_collection_del; > ++ } > ++ } > ++ if (fmt->timestamp_end) { > ++ ret = fmt->timestamp_end(td, handle, BT_CLOCK_REAL, > ++ &handle->real_timestamp_end); > ++ if (ret < 0 && ret != -ENOENT) { > ++ ret = -1; > ++ goto error_collection_del; > ++ } > ++ } > ++ if (fmt->timestamp_begin) { > ++ ret = fmt->timestamp_begin(td, handle, BT_CLOCK_CYCLES, > ++ &handle->cycles_timestamp_begin); > ++ if (ret < 0 && ret != -ENOENT) { > ++ ret = -1; > ++ goto error_collection_del; > ++ } > ++ } > ++ if (fmt->timestamp_end) { > ++ ret = fmt->timestamp_end(td, handle, BT_CLOCK_CYCLES, > ++ &handle->cycles_timestamp_end); > ++ if (ret < 0 && ret != -ENOENT) { > ++ ret = -1; > ++ goto error_collection_del; > ++ } > ++ } > + > + /* Add new handle to container */ > + g_hash_table_insert(ctx->trace_handles, > +diff --git a/lib/trace-handle.c b/lib/trace-handle.c > +index d5b906aa..8f11c7cc 100644 > +--- a/lib/trace-handle.c > ++++ b/lib/trace-handle.c > +@@ -66,54 +66,57 @@ const char *bt_trace_handle_get_path(struct bt_context > *ctx, int handle_id) > + return handle->path; > + } > + > +-uint64_t bt_trace_handle_get_timestamp_begin(struct bt_context *ctx, > +- int handle_id, enum bt_clock_type type) > ++int bt_trace_handle_get_timestamp_begin(struct bt_context *ctx, > ++ int handle_id, enum bt_clock_type type, > ++ int64_t *timestamp) > + { > + struct bt_trace_handle *handle; > +- uint64_t ret; > + > +- if (!ctx) > +- return -1ULL; > ++ int ret = 0; > ++ > ++ if (!ctx || !timestamp) > ++ return -1; > + > + handle = g_hash_table_lookup(ctx->trace_handles, > + (gpointer) (unsigned long) handle_id); > + if (!handle) { > +- ret = -1ULL; > ++ ret = -1; > + goto end; > + } > + if (type == BT_CLOCK_REAL) { > +- ret = handle->real_timestamp_begin; > ++ *timestamp = handle->real_timestamp_begin; > + } else if (type == BT_CLOCK_CYCLES) { > +- ret = handle->cycles_timestamp_begin; > ++ *timestamp = handle->cycles_timestamp_begin; > + } else { > +- ret = -1ULL; > ++ ret = -1; > + } > + > + end: > + return ret; > + } > + > +-uint64_t bt_trace_handle_get_timestamp_end(struct bt_context *ctx, > +- int handle_id, enum bt_clock_type type) > ++int bt_trace_handle_get_timestamp_end(struct bt_context *ctx, > ++ int handle_id, enum bt_clock_type type, > ++ int64_t *timestamp) > + { > + struct bt_trace_handle *handle; > +- uint64_t ret; > ++ int ret = 0; > + > +- if (!ctx) > +- return -1ULL; > ++ if (!ctx || !timestamp) > ++ return -1; > + > + handle = g_hash_table_lookup(ctx->trace_handles, > + (gpointer) (unsigned long) handle_id); > + if (!handle) { > +- ret = -1ULL; > ++ ret = -1; > + goto end; > + } > + if (type == BT_CLOCK_REAL) { > +- ret = handle->real_timestamp_end; > ++ *timestamp = handle->real_timestamp_end; > + } else if (type == BT_CLOCK_CYCLES) { > +- ret = handle->cycles_timestamp_end; > ++ *timestamp = handle->cycles_timestamp_end; > + } else { > +- ret = -1ULL; > ++ ret = -1; > + } > + > + end: > +diff --git a/tests/lib/test_ctf_writer.c b/tests/lib/test_ctf_writer.c > +index 53613c91..29d76df8 100644 > +--- a/tests/lib/test_ctf_writer.c > ++++ b/tests/lib/test_ctf_writer.c > +@@ -45,7 +45,7 @@ > + #define SEQUENCE_TEST_LENGTH 10 > + #define PACKET_RESIZE_TEST_LENGTH 100000 > + > +-static uint64_t current_time; > ++static int64_t current_time; > + > + void validate_metadata(char *parser_path, char *metadata_path) > + { > +@@ -695,8 +695,8 @@ int main(int argc, char **argv) > + const char *clock_name = "test_clock"; > + const char *clock_description = "This is a test clock"; > + const uint64_t frequency = 1000000000; > +- const uint64_t offset_s = 1351530929945824323; > +- const uint64_t offset = 1234567; > ++ const int64_t offset_s = 1351530929945824323; > ++ const int64_t offset = 1234567; > + const uint64_t precision = 10; > + char *metadata_string; > + struct bt_ctf_writer *writer; > +diff --git a/tests/lib/test_seek.c b/tests/lib/test_seek.c > +index 3c78e8ad..04beaf97 100644 > +--- a/tests/lib/test_seek.c > ++++ b/tests/lib/test_seek.c > +@@ -33,7 +33,7 @@ > + #include <tap/tap.h> > + #include "common.h" > + > +-#define NR_TESTS 29 > ++#define NR_TESTS 36 > + > + void run_seek_begin(char *path, uint64_t expected_begin) > + { > +@@ -42,8 +42,8 @@ void run_seek_begin(char *path, uint64_t expected_begin) > + struct bt_ctf_event *event; > + struct bt_iter_pos newpos; > + int ret; > +- uint64_t timestamp_begin; > +- uint64_t timestamp_seek_begin; > ++ int64_t timestamp_begin; > ++ int64_t timestamp_seek_begin; > + unsigned int nr_seek_begin_test; > + > + nr_seek_begin_test = 5; > +@@ -67,7 +67,7 @@ void run_seek_begin(char *path, uint64_t expected_begin) > + ok(event, "Event valid"); > + > + /* Validate that the first timestamp is right */ > +- timestamp_begin = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp_begin) == 0); > + > + ok1(timestamp_begin == expected_begin); > + > +@@ -81,8 +81,8 @@ void run_seek_begin(char *path, uint64_t expected_begin) > + > + ok(event, "Event valid"); > + > +- timestamp_seek_begin = bt_ctf_get_timestamp(event); > +- > ++ ok1(bt_ctf_get_timestamp(event, ×tamp_seek_begin) == 0); > ++ > + ok1(timestamp_begin == timestamp_seek_begin); > + > + bt_context_put(ctx); > +@@ -96,7 +96,7 @@ void run_seek_last(char *path, uint64_t expected_last) > + struct bt_ctf_event *event; > + struct bt_iter_pos newpos; > + int ret; > +- uint64_t timestamp_last; > ++ int64_t timestamp_last; > + unsigned int nr_seek_last_tests; > + > + nr_seek_last_tests = 6; > +@@ -129,7 +129,7 @@ void run_seek_last(char *path, uint64_t expected_last) > + > + ok(event, "Event valid at last position"); > + > +- timestamp_last = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp_last) == 0); > + > + ok1(timestamp_last == expected_last); > + > +@@ -152,7 +152,7 @@ void run_seek_time_at_last(char *path, uint64_t > expected_last) > + struct bt_ctf_event *event; > + struct bt_iter_pos newpos; > + int ret; > +- uint64_t timestamp_last; > ++ int64_t timestamp_last; > + unsigned int nr_seek_time_at_last_tests; > + > + nr_seek_time_at_last_tests = 6; > +@@ -188,7 +188,7 @@ void run_seek_time_at_last(char *path, uint64_t > expected_last) > + > + ok(event, "Event valid at last position"); > + > +- timestamp_last = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp_last) == 0); > + > + ok1(timestamp_last == expected_last); > + > +@@ -213,7 +213,7 @@ void run_seek_cycles(char *path, > + struct bt_ctf_event *event; > + struct bt_iter_pos newpos; > + int ret; > +- uint64_t timestamp; > ++ int64_t timestamp; > + > + unsigned int nr_seek_cycles_tests; > + > +@@ -247,7 +247,7 @@ void run_seek_cycles(char *path, > + > + ok(event, "Event valid at last position"); > + > +- timestamp = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp) == 0); > + > + ok1(timestamp == expected_last); > + > +@@ -270,7 +270,7 @@ void run_seek_cycles(char *path, > + > + ok(event, "Event valid at first position"); > + > +- timestamp = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp) == 0); > + > + ok1(timestamp == expected_begin); > + > +@@ -284,7 +284,7 @@ void run_seek_cycles(char *path, > + > + ok(event, "Event valid at last position"); > + > +- timestamp = bt_ctf_get_timestamp(event); > ++ ok1(bt_ctf_get_timestamp(event, ×tamp) == 0); > + > + ok1(timestamp == expected_last); > + > +-- > +2.34.1 > + > diff --git > a/meta/recipes-kernel/lttng/babeltrace/0002-babeltrace-fix-bug-in-stream-intersection-option.patch > > b/meta/recipes-kernel/lttng/babeltrace/0002-babeltrace-fix-bug-in-stream-intersection-option.patch > new file mode 100644 > index 0000000000..cd06ec517c > --- /dev/null > +++ > b/meta/recipes-kernel/lttng/babeltrace/0002-babeltrace-fix-bug-in-stream-intersection-option.patch > @@ -0,0 +1,114 @@ > +From 04582ee50791df39c34da2a8c81101a64c79a3bd Mon Sep 17 00:00:00 2001 > +From: Heng Guo <heng....@windriver.com> > +Date: Thu, 17 Mar 2022 12:26:12 +0800 > +Subject: [PATCH 2/2] babeltrace: fix bug in --stream-intersection option > + > +If --stream-intersection option is used to filter trace, wrong result > +is got by babeltrace with commit: 61cf588beae752e5ddfc60b6b5310f769ac9e852. > +Fix it using INT64 instead of UINT64 in related codes. > + > +Upstream-Status: Inappropriate > +[https://bugs.lttng.org/attachments/538] > +
Upstream have rejected this patch: https://bugs.lttng.org/issues/1350 "It introduces API-breaking changes in the C and Python APIs, since we need to be able to return negative time values, which were previously used as errors (-1ULL)." I'm reluctant to carry a patch which has feedback like that upstream and stands no chance of being merged. Cheers, Richard
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