Red Hat ENTERPRISE LINUX 4 - DEVELOPER TOOLS GUIDE, Manual

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96 Chapter 12. Tracepoints
$locals
collect all local variables.
You can give several consecutive
collect
commands, each one with a single argument, or one
collect
command with several arguments separated by commas: the effect is the same.
The command
info scope
(info scope) is particularly useful for figuring out what data to col-
lect.
while-stepping
n
Perform
n
single-step traces after the tracepoint, collecting new data at each step. The
while-stepping
command is followed by the list of what to collect while stepping (followed
by its own
end
command):
%
while-stepping 12
%
collect $regs, myglobal
%
end
%
You may abbreviate
while-stepping
as
ws
or
stepping
.
12.1.5. Listing Tracepoints
info tracepoints [
num
]
Display information about the tracepoint
num
. If you don’t specify a tracepoint number, displays
information about all the tracepoints defined so far. For each tracepoint, the following informa-
tion is shown:
•
its number
•
whether it is enabled or disabled
•
its address
•
its passcount as given by the
passcount
n
command
•
its step count as given by the
while-stepping
n
command
•
where in the source files is the tracepoint set
•
its action list as given by the
actions
command
(gdb) info trace
Num Enb Address PassC StepC What
1 y 0x002117c4 0 0
&
gdb_asm
%
2 y 0x0020dc64 0 0 in g_test at g_test.c:1375
3 y 0x0020b1f4 0 0 in get_data at ../foo.c:41
(gdb)
This command can be abbreviated
info tp
.