68 lines
1.5 KiB
Plaintext
68 lines
1.5 KiB
Plaintext
set prompt \033[31m(gdb) \033[0m
|
|
set disassembly-flavor intel
|
|
|
|
python
|
|
import os
|
|
gdb.execute('file ' + os.environ['BUILDROOT'] + 'sysroot/kernel')
|
|
end
|
|
|
|
target remote :1234
|
|
|
|
set height 0
|
|
set width 0
|
|
|
|
define q
|
|
monitor quit
|
|
end
|
|
|
|
define reset
|
|
monitor system_reset
|
|
end
|
|
|
|
define mmap
|
|
monitor info mem
|
|
end
|
|
|
|
python
|
|
|
|
import re
|
|
|
|
class Reg(gdb.Command):
|
|
|
|
def __init__(self):
|
|
super(Reg, self).__init__("reg", gdb.COMMAND_USER)
|
|
|
|
def invoke(self, arg, from_tty):
|
|
regs = gdb.execute('monitor info registers', False, True)
|
|
|
|
if not arg:
|
|
# If no argument was given, print the output from qemu
|
|
print regs
|
|
return
|
|
|
|
if arg.upper() in ['CS', 'DS', 'ES', 'FS', 'GS', 'SS', 'LDT', 'TR']:
|
|
# Code selectors may contain equals signs
|
|
for l in regs.splitlines():
|
|
if l.startswith(arg.upper()):
|
|
print l
|
|
elif arg.upper() in ['EFL', 'RFL']:
|
|
# The xFLAGS registers contains equals signs
|
|
for l in regs.splitlines():
|
|
if arg.upper() in l:
|
|
print ' '.join(l.split()[1:])
|
|
# The xFLAGS register is the second one on the line
|
|
else:
|
|
# Split at any word followed by and equals sign
|
|
# Clean up both sides of the split and put into a dictionary
|
|
# then print the requested register value
|
|
regex = re.compile("[A-Z0-9]+\s?=")
|
|
names = [v[:-1].strip() for v in regex.findall(regs)]
|
|
values = [v.strip() for v in regex.split(regs)][1:]
|
|
regs = dict(zip(names, values))
|
|
print "%s=%s" % (arg.upper(), regs[arg.upper()])
|
|
|
|
|
|
Reg()
|
|
|
|
end
|