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skel/gdbinit

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# General options
set verbose off
set disassembly-flavor intel
set output-radix 0x10
set input-radix 0x10
# helpful shortcuts
define lsbp
info breakpoints
end
document lsbp
List all breakpoints
end
define iframe
info frame
info args
info locals
end
define reg
info registers
end
# taviso's assembly macro
define assemble
# dont enter routine again if user hits enter
dont-repeat
if ($argc)
if (*$arg0 = *$arg0)
# check if we have a valid address by dereferencing it,
# if we havnt, this will cause the routine to exit.
end
printf "Instructions will be written to %#x.\n", $arg0
else
printf "Instructions will be written to stdout.\n"
end
printf "Type instructions, one per line.\n"
printf "End with a line saying just \"end\".\n"
if ($argc)
# argument specified, assemble instructions into memory
# at address specified.
shell nasm -f bin -o /dev/stdout /dev/stdin \
<<< "$( echo "BITS 32"; while read -ep '>' r && test "$r" != end; \
do echo -E "$r"; done )" | hexdump -ve \
'1/1 "set *((unsigned char *) $arg0 + %#2_ax) = %#02x\n"' \
> ~/.gdbassemble
# load the file containing set instructions
source ~/.gdbassemble
# all done.
shell rm -f ~/.gdbassemble
else
# no argument, assemble instructions to stdout
shell nasm -f bin -o /dev/stdout /dev/stdin \
<<< "$( echo "BITS 32"; while read -ep '>' r && test "$r" != end; \
do echo -E "$r"; done )" | ndisasm -i -b32 /dev/stdin
end
end
document assemble
Assemble instructions using nasm.
Type a line containing "end" to indicate the end.
If an address is specified, insert instructions at that address.
If no address is specified, assembled instructions are printed to stdout.
Use the pseudo instruction "org ADDR" to set the base address.
end
# __________________gdb options_________________
# set to 1 to have ARM target debugging as default, use the "arm" command to switch inside gdb
set $ARM = 0
# set to 0 if you have problems with the colorized prompt - reported by Plouj with Ubuntu gdb 7.2
set $COLOUREDPROMPT = 0
# Colour the first line of the disassembly - default is green, if you want to change it search for
# SETCOLOUR1STLINE and modify it :-)
set $SETCOLOUR1STLINE = 0
# set to 0 to remove display of objectivec messages (default is 1)
set $SHOWOBJECTIVEC = 1
# set to 0 to remove display of cpu registers (default is 1)
set $SHOWCPUREGISTERS = 1
# set to 1 to enable display of stack (default is 0)
set $SHOWSTACK = 1
# set to 1 to show 4 bytes of the stack at a time for 32bit and 8 bytes for 64bit
set $STACK_WORDSIZE = 1
# set to 1 to enable display of data window (default is 0)
set $SHOWDATAWIN = 0
# set to 0 to disable coloured display of changed registers
set $SHOWREGCHANGES = 1
# set to 1 so skip command to execute the instruction at the new location
# by default it EIP/RIP will be modified and update the new context but not execute the instruction
set $SKIPEXECUTE = 0
# if $SKIPEXECUTE is 1 configure the type of execution
# 1 = use stepo (do not get into calls), 0 = use stepi (step into calls)
set $SKIPSTEP = 1
# show the ARM opcodes - change to 0 if you don't want such thing (in x/i command)
set $ARMOPCODES = 1
# x86 disassembly flavor: 0 for Intel, 1 for AT&T
set $X86FLAVOR = 0
# use colorized output or not
set $USECOLOR = 0
set confirm off
set verbose off
set output-radix 0x10
set input-radix 0x10
# These make gdb never pause in its output
set height 0
set width 0
set $SHOW_CONTEXT = 1
set $SHOW_NEST_INSN = 0
set $CONTEXTSIZE_STACK = 6
set $CONTEXTSIZE_DATA = 8
set $CONTEXTSIZE_CODE = 8
# __________________end gdb options_________________
#
source ~/.reverser-gdbinit