Multiple commands in gdb separated by some sort of delimiter ';'?
GDB has no such command separator character. I looked briefly, in case it would be easy to add one, but unfortunately no....
You can do this using the python integration in gdb
.
It would be nice if s ; bt
stepped and then printed a backtrace, but it doesn't.
You can accomplish the same thing by calling into the Python interpreter.
python import gdb ; print(gdb.execute("s")) ; print(gdb.execute("bt"))
It's possible to wrap this up into a dedicated command, here called "cmds", backed by a python definition.
Here's an example .gdbinit
extended with a function to run multiple commands.
# multiple commands
python
from __future__ import print_function
import gdb
class Cmds(gdb.Command):
"""run multiple commands separated by ';'"""
def __init__(self):
gdb.Command.__init__(
self,
"cmds",
gdb.COMMAND_DATA,
gdb.COMPLETE_SYMBOL,
True,
)
def invoke(self, arg, from_tty):
for fragment in arg.split(';'):
# from_tty is passed in from invoke.
# These commands should be considered interactive if the command
# that invoked them is interactive.
# to_string is false. We just want to write the output of the commands, not capture it.
gdb.execute(fragment, from_tty=from_tty, to_string=False)
print()
Cmds()
end
example invocation:
$ gdb
(gdb) cmds echo hi ; echo bye
hi
bye
If you are running gdb from command line you can pass multiple commands with the -ex parameter like:
$ gdb ./prog -ex 'b srcfile.c:90' -ex 'b somefunc' -ex 'r -p arg1 -q arg2'
This coupled with display and other commands makes running gdb less cumbersome.
I don't believe so (but I may be wrong). You can do something like this:
(gdb) define fn > finish > next > end
And then just type:
(gdb) fn
You can put this in your ~/.gdbinit
file as well so it is always available.