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authorJose E. Marchesi <jose.marchesi@oracle.com>2015-02-17 15:49:12 +0100
committerJose E. Marchesi <jose.marchesi@oracle.com>2015-02-17 15:49:12 +0100
commit6f9b84910f8cabf565598f499258bbea51cc06d4 (patch)
treebdced44fc258a352769675f974d1ff31ffb2e71e /gdb/probe.h
parent2ec55de302e4a6c49a06c673c8262a119fa6226f (diff)
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Adapt `info probes' to support printing probes of different types.
A "probe type" (backend for the probe abstraction implemented in probe.[ch]) can extend the information printed by `info probes' by defining additional columns. This means that when `info probes' is used to print all the probes regardless of their types, some of the columns will be "not applicable" to some of the probes (like, say, the Semaphore column only makes sense for SystemTap probes). This patch makes `info probes' fill these slots with "n/a" marks (currently it breaks the table) and not include headers for which no actual probe has been found in the list of defined probes. This patch also adds support for a new generic column "Type", that displays the type of each probe. SystemTap probes identify themselves as "stap" probes. gdb/ChangeLog: 2015-02-17 Jose E. Marchesi <jose.marchesi@oracle.com> * probe.c (print_ui_out_not_applicables): New function. (exists_probe_with_pops): Likewise. (info_probes_for_ops): Do not include column headers for probe types for which no probe has been actually found on any object. Also invoke `print_ui_out_not_applicables' in order to match the column rows with the header when probes of several types are listed. Print the "Type" column. * probe.h (probe_ops): Added a new probe operation `type_name'. * stap-probe.c (stap_probe_ops): Add `stap_type_name'. (stap_type_name): New function.
Diffstat (limited to 'gdb/probe.h')
-rw-r--r--gdb/probe.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/gdb/probe.h b/gdb/probe.h
index 1dd582d..5df1976 100644
--- a/gdb/probe.h
+++ b/gdb/probe.h
@@ -113,6 +113,12 @@ struct probe_ops
void (*destroy) (struct probe *probe);
+ /* Return a pointer to a name identifying the probe type. This is
+ the string that will be displayed in the "Type" column of the
+ `info probes' command. */
+
+ const char *(*type_name) (struct probe *probe);
+
/* Function responsible for providing the extra fields that will be
printed in the `info probes' command. It should fill HEADS
with whatever extra fields it needs. If the backend doesn't need