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gdbserver: get back to life

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run-gdbserver is dead, converted to ./run --gdbserver --userland

I'm so happy, this refactor was so easy due to previous good code structure.

Fix https://github.com/cirosantilli/linux-kernel-module-cheat/issues/63
This commit is contained in:
Ciro Santilli 六四事件 法轮功
2019-06-02 00:00:04 +00:00
parent 7fda133215
commit 39de6f6abf
3 changed files with 42 additions and 44 deletions
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41
run-gdb
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@@ -85,31 +85,49 @@ Connect with GDB to an emulator to debug Linux itself
self.add_argument(
'--after',
default='',
help='Pass extra arguments to GDB, to be appended after all other arguments'
help='''Pass extra arguments to GDB, to be appended after all other arguments.'''
)
self.add_argument(
'--before',
default='',
help='Pass extra arguments to GDB to be prepended before any of the arguments passed by this script'
help='''Pass extra arguments to GDB to be prepended before any of the arguments passed by this script.'''
)
self.add_argument(
'--continue',
default=True,
help="Don't run continue after connecting"
help='''\
Run `continue` in GDB after connecting.
* https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-step-debug-early-boot
* https://github.com/cirosantilli/linux-kernel-module-cheat#freestanding-programs
* https://github.com/cirosantilli/linux-kernel-module-cheat#baremetal-gdb-step-debug
'''
)
self.add_argument(
'--gdbserver',
default=False,
help='''https://github.com/cirosantilli/linux-kernel-module-cheat#gdbserver'''
)
self.add_argument(
'--kgdb',
default=False,
help='''https://github.com/cirosantilli/linux-kernel-module-cheat#kgdb'''
)
self.add_argument(
'--lxsymbols',
default=True,
help='''\
Use the Linux kernel lxsymbols GDB script.
Only enabled by default when debugging the Linux kernel, not on userland or baremetal.
* https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-step-debug-kernel-module
* https://github.com/cirosantilli/linux-kernel-module-cheat#bypass-lx-symbols
'''
)
self.add_argument(
'--sim',
default=False,
help='''Use the built-in GDB CPU simulator
See: https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-builtin-cpu-simulator
help='''\
Use the built-in GDB CPU simulator.
https://github.com/cirosantilli/linux-kernel-module-cheat#gdb-builtin-cpu-simulator
'''
)
self.add_argument(
@@ -123,7 +141,10 @@ the script is a .py file next to the source code.
self.add_argument(
'break_at',
nargs='?',
help='Extra options to append at the end of the emulator command line'
help='''\
If given, break at the given expression, e.g. `main`. You will be left there automatically
by default due to --continue if this breakpoint is reached.
'''
)
def timed_main(self):
@@ -152,6 +173,10 @@ the script is a .py file next to the source code.
if self.env['userland']:
image = self.env['image']
linux_full_system = False
if self.env['gdbserver']:
before.extend([
'-ex', 'set sysroot {}'.format(self.env['buildroot_staging_dir']),
])
elif self.env['baremetal']:
image = self.env['image']
linux_full_system = False
@@ -167,7 +192,9 @@ the script is a .py file next to the source code.
if self.env['sim']:
target = 'sim'
else:
if self.env['kgdb']:
if self.env['gdbserver']:
port = self.env['qemu_hostfwd_generic_port']
elif self.env['kgdb']:
port = self.env['extra_serial_port']
else:
port = self.env['gdb_port']