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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Mon 19 Feb 2018 16:19:46 GMT
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  trace: avoid SystemTap "char const" warnings
  tracetool: For ust trace bool type as ctf_integer
  tracetool: Update argument format regex to non-greedy star

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/block/trace-events

@@ -17,7 +17,7 @@ nvme_irq_msix(uint32_t vector) "raising MSI-X IRQ vector %u"
 nvme_irq_pin(void) "pulsing IRQ pin"
 nvme_irq_masked(void) "IRQ is masked"
 nvme_dma_read(uint64_t prp1, uint64_t prp2) "DMA read, prp1=0x%"PRIx64" prp2=0x%"PRIx64""
-nvme_rw(char const *verb, uint32_t blk_count, uint64_t byte_count, uint64_t lba) "%s %"PRIu32" blocks (%"PRIu64" bytes) from LBA %"PRIu64""
+nvme_rw(const char *verb, uint32_t blk_count, uint64_t byte_count, uint64_t lba) "%s %"PRIu32" blocks (%"PRIu64" bytes) from LBA %"PRIu64""
 nvme_create_sq(uint64_t addr, uint16_t sqid, uint16_t cqid, uint16_t qsize, uint16_t qflags) "create submission queue, addr=0x%"PRIx64", sqid=%"PRIu16", cqid=%"PRIu16", qsize=%"PRIu16", qflags=%"PRIu16""
 nvme_create_cq(uint64_t addr, uint16_t cqid, uint16_t vector, uint16_t size, uint16_t qflags, int ien) "create completion queue, addr=0x%"PRIx64", cqid=%"PRIu16", vector=%"PRIu16", qsize=%"PRIu16", qflags=%"PRIu16", ien=%d"
 nvme_del_sq(uint16_t qid) "deleting submission queue sqid=%"PRIu16""
@@ -25,7 +25,7 @@ nvme_del_cq(uint16_t cqid) "deleted completion queue, sqid=%"PRIu16""
 nvme_identify_ctrl(void) "identify controller"
 nvme_identify_ns(uint16_t ns) "identify namespace, nsid=%"PRIu16""
 nvme_identify_nslist(uint16_t ns) "identify namespace list, nsid=%"PRIu16""
-nvme_getfeat_vwcache(char const* result) "get feature volatile write cache, result=%s"
+nvme_getfeat_vwcache(const char* result) "get feature volatile write cache, result=%s"
 nvme_getfeat_numq(int result) "get feature number of queues, result=%d"
 nvme_setfeat_numq(int reqcq, int reqsq, int gotcq, int gotsq) "requested cq_count=%d sq_count=%d, responding with cq_count=%d sq_count=%d"
 nvme_mmio_intm_set(uint64_t data, uint64_t new_mask) "wrote MMIO, interrupt mask set, data=0x%"PRIx64", new_mask=0x%"PRIx64""

scripts/tracetool/__init__.py

@@ -261,8 +261,9 @@ class Event(object):
                                           self.name,
                                           self.args,
                                           fmt)
-
-    _FMT = re.compile("(%[\d\.]*\w+|%.*PRI\S+)")
+    # Star matching on PRI is dangerous as one might have multiple
+    # arguments with that format, hence the non-greedy version of it.
+    _FMT = re.compile("(%[\d\.]*\w+|%.*?PRI\S+)")
 
     def formats(self):
         """List conversion specifiers in the argument print format string."""

scripts/tracetool/format/ust_events_h.py

@@ -79,7 +79,8 @@ def generate(events, backend, group):
                     out('       ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')')
                 elif ("ptr" in t) or ("*" in t):
                     out('       ctf_integer_hex('+ t + ', ' + n + ', ' + n + ')')
-                elif ('int' in t) or ('long' in t) or ('unsigned' in t) or ('size_t' in t):
+                elif ('int' in t) or ('long' in t) or ('unsigned' in t) \
+                        or ('size_t' in t) or ('bool' in t):
                     out('       ctf_integer(' + t + ', ' + n + ', ' + n + ')')
                 elif ('double' in t) or ('float' in t):
                     out('       ctf_float(' + t + ', ' + n + ', ' + n + ')')

trace-events

@@ -73,13 +73,13 @@ flatview_destroy(FlatView *view, MemoryRegion *root) "%p (root %p)"
 flatview_destroy_rcu(FlatView *view, MemoryRegion *root) "%p (root %p)"
 
 # gdbstub.c
-gdbstub_op_start(char const *device) "Starting gdbstub using device %s"
+gdbstub_op_start(const char *device) "Starting gdbstub using device %s"
 gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x"
 gdbstub_op_continue(void) "Continuing all CPUs"
 gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d"
 gdbstub_op_stepping(int cpu_index) "Stepping CPU %d"
-gdbstub_op_extra_info(char const *info) "Thread extra info: %s"
-gdbstub_hit_watchpoint(char const *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
+gdbstub_op_extra_info(const char *info) "Thread extra info: %s"
+gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
 gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR"
 gdbstub_hit_break(void) "RUN_STATE_DEBUG"
 gdbstub_hit_paused(void) "RUN_STATE_PAUSED"
@@ -87,9 +87,9 @@ gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN"
 gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR"
 gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG"
 gdbstub_hit_unknown(int state) "Unknown run state=0x%x"
-gdbstub_io_reply(char const *message) "Sent: %s"
-gdbstub_io_binaryreply(size_t ofs, char const *line) "0x%04zx: %s"
-gdbstub_io_command(char const *command) "Received: %s"
+gdbstub_io_reply(const char *message) "Sent: %s"
+gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s"
+gdbstub_io_command(const char *command) "Received: %s"
 gdbstub_io_got_ack(void) "Got ACK"
 gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK"
 gdbstub_err_got_nack(void) "Got NACK, retransmitting"