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add gdbinit

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thek4n 2024-02-06 15:32:27 +03:00
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commit 5cc25ec27b
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home/user/.config/gdb/gdbinit Normal file
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# set to 1 to enable 64bits target by default (32bit is the default)
set $64BITS = 1
set confirm off
set verbose off
set prompt \033[31mgdb$ \033[0m
set output-radix 0x10
set input-radix 0x10
# These make gdb never pause in its output
set height 0
set width 0
# _____________breakpoint aliases_____________
define bpl
info breakpoints
end
document bpl
List all breakpoints.
end
define bp
if $argc != 1
help bp
else
break $arg0
end
end
document bp
Set breakpoint.
Usage: bp LOCATION
LOCATION may be a line number, function name, or "*" and an address.
To break on a symbol you must enclose symbol name inside "".
Example:
bp "[NSControl stringValue]"
Or else you can use directly the break command (break [NSControl stringValue])
end
define bpc
if $argc != 1
help bpc
else
clear $arg0
end
end
document bpc
Clear breakpoint.
Usage: bpc LOCATION
LOCATION may be a line number, function name, or "*" and an address.
end
define bpe
if $argc != 1
help bpe
else
enable $arg0
end
end
document bpe
Enable breakpoint with number NUM.
Usage: bpe NUM
end
define bpd
if $argc != 1
help bpd
else
disable $arg0
end
end
document bpd
Disable breakpoint with number NUM.
Usage: bpd NUM
end
define bpt
if $argc != 1
help bpt
else
tbreak $arg0
end
end
document bpt
Set a temporary breakpoint.
Will be deleted when hit!
Usage: bpt LOCATION
LOCATION may be a line number, function name, or "*" and an address.
end
define bpm
if $argc != 1
help bpm
else
awatch $arg0
end
end
document bpm
Set a read/write breakpoint on EXPRESSION, e.g. *address.
Usage: bpm EXPRESSION
end
define bhb
if $argc != 1
help bhb
else
hb $arg0
end
end
document bhb
Set hardware assisted breakpoint.
Usage: bhb LOCATION
LOCATION may be a line number, function name, or "*" and an address.
end
# ______________process information____________
define argv
show args
end
document argv
Print program arguments.
end
define stack
if $argc == 0
info stack
end
if $argc == 1
info stack $arg0
end
if $argc > 1
help stack
end
end
document stack
Print backtrace of the call stack, or innermost COUNT frames.
Usage: stack <COUNT>
end
define frame
info frame
info args
info locals
end
document frame
Print stack frame.
end
define flags
# OF (overflow) flag
if (($eflags >> 0xB) & 1)
printf "O "
set $_of_flag = 1
else
printf "o "
set $_of_flag = 0
end
if (($eflags >> 0xA) & 1)
printf "D "
else
printf "d "
end
if (($eflags >> 9) & 1)
printf "I "
else
printf "i "
end
if (($eflags >> 8) & 1)
printf "T "
else
printf "t "
end
# SF (sign) flag
if (($eflags >> 7) & 1)
printf "S "
set $_sf_flag = 1
else
printf "s "
set $_sf_flag = 0
end
# ZF (zero) flag
if (($eflags >> 6) & 1)
printf "Z "
set $_zf_flag = 1
else
printf "z "
set $_zf_flag = 0
end
if (($eflags >> 4) & 1)
printf "A "
else
printf "a "
end
# PF (parity) flag
if (($eflags >> 2) & 1)
printf "P "
set $_pf_flag = 1
else
printf "p "
set $_pf_flag = 0
end
# CF (carry) flag
if ($eflags & 1)
printf "C "
set $_cf_flag = 1
else
printf "c "
set $_cf_flag = 0
end
printf "\n"
end
document flags
Print flags register.
end
define eflags
printf " OF <%d> DF <%d> IF <%d> TF <%d>",\
(($eflags >> 0xB) & 1), (($eflags >> 0xA) & 1), \
(($eflags >> 9) & 1), (($eflags >> 8) & 1)
printf " SF <%d> ZF <%d> AF <%d> PF <%d> CF <%d>\n",\
(($eflags >> 7) & 1), (($eflags >> 6) & 1),\
(($eflags >> 4) & 1), (($eflags >> 2) & 1), ($eflags & 1)
printf " ID <%d> VIP <%d> VIF <%d> AC <%d>",\
(($eflags >> 0x15) & 1), (($eflags >> 0x14) & 1), \
(($eflags >> 0x13) & 1), (($eflags >> 0x12) & 1)
printf " VM <%d> RF <%d> NT <%d> IOPL <%d>\n",\
(($eflags >> 0x11) & 1), (($eflags >> 0x10) & 1),\
(($eflags >> 0xE) & 1), (($eflags >> 0xC) & 3)
end
document eflags
Print eflags register.
end
define reg
if ($64BITS == 1)
# 64bits stuff
printf " "
echo \033[32m
printf "RAX:"
echo \033[0m
printf " 0x%016lX ", $rax
echo \033[32m
printf "RBX:"
echo \033[0m
printf " 0x%016lX ", $rbx
echo \033[32m
printf "RCX:"
echo \033[0m
printf " 0x%016lX ", $rcx
echo \033[32m
printf "RDX:"
echo \033[0m
printf " 0x%016lX ", $rdx
echo \033[1m\033[4m\033[31m
flags
echo \033[0m
printf " "
echo \033[32m
printf "RSI:"
echo \033[0m
printf " 0x%016lX ", $rsi
echo \033[32m
printf "RDI:"
echo \033[0m
printf " 0x%016lX ", $rdi
echo \033[32m
printf "RBP:"
echo \033[0m
printf " 0x%016lX ", $rbp
echo \033[32m
printf "RSP:"
echo \033[0m
printf " 0x%016lX ", $rsp
echo \033[32m
printf "RIP:"
echo \033[0m
printf " 0x%016lX\n ", $rip
echo \033[32m
printf "R8 :"
echo \033[0m
printf " 0x%016lX ", $r8
echo \033[32m
printf "R9 :"
echo \033[0m
printf " 0x%016lX ", $r9
echo \033[32m
printf "R10:"
echo \033[0m
printf " 0x%016lX ", $r10
echo \033[32m
printf "R11:"
echo \033[0m
printf " 0x%016lX ", $r11
echo \033[32m
printf "R12:"
echo \033[0m
printf " 0x%016lX\n ", $r12
echo \033[32m
printf "R13:"
echo \033[0m
printf " 0x%016lX ", $r13
echo \033[32m
printf "R14:"
echo \033[0m
printf " 0x%016lX ", $r14
echo \033[32m
printf "R15:"
echo \033[0m
printf " 0x%016lX\n ", $r15
echo \033[32m
printf "CS:"
echo \033[0m
printf " %04X ", $cs
echo \033[32m
printf "DS:"
echo \033[0m
printf " %04X ", $ds
echo \033[32m
printf "ES:"
echo \033[0m
printf " %04X ", $es
echo \033[32m
printf "FS:"
echo \033[0m
printf " %04X ", $fs
echo \033[32m
printf "GS:"
echo \033[0m
printf " %04X ", $gs
echo \033[32m
printf "SS:"
echo \033[0m
printf " %04X", $ss
echo \033[0m
# 32bits stuff
else
printf " "
echo \033[32m
printf "EAX:"
echo \033[0m
printf " 0x%08X ", $eax
echo \033[32m
printf "EBX:"
echo \033[0m
printf " 0x%08X ", $ebx
echo \033[32m
printf "ECX:"
echo \033[0m
printf " 0x%08X ", $ecx
echo \033[32m
printf "EDX:"
echo \033[0m
printf " 0x%08X ", $edx
echo \033[1m\033[4m\033[31m
flags
echo \033[0m
printf " "
echo \033[32m
printf "ESI:"
echo \033[0m
printf " 0x%08X ", $esi
echo \033[32m
printf "EDI:"
echo \033[0m
printf " 0x%08X ", $edi
echo \033[32m
printf "EBP:"
echo \033[0m
printf " 0x%08X ", $ebp
echo \033[32m
printf "ESP:"
echo \033[0m
printf " 0x%08X ", $esp
echo \033[32m
printf "EIP:"
echo \033[0m
printf " 0x%08X\n ", $eip
echo \033[32m
printf "CS:"
echo \033[0m
printf " %04X ", $cs
echo \033[32m
printf "DS:"
echo \033[0m
printf " %04X ", $ds
echo \033[32m
printf "ES:"
echo \033[0m
printf " %04X ", $es
echo \033[32m
printf "FS:"
echo \033[0m
printf " %04X ", $fs
echo \033[32m
printf "GS:"
echo \033[0m
printf " %04X ", $gs
echo \033[32m
printf "SS:"
echo \033[0m
printf " %04X", $ss
echo \033[0m
end
# call smallregisters
smallregisters
# display conditional jump routine
if ($64BITS == 1)
printf "\t\t\t\t"
end
dumpjump
printf "\n"
end
document reg
Print CPU registers.
end
define smallregisters
if ($64BITS == 1)
#64bits stuff
# from rax
set $eax = $rax & 0xffffffff
set $ax = $rax & 0xffff
set $al = $ax & 0xff
set $ah = $ax >> 8
# from rbx
set $bx = $rbx & 0xffff
set $bl = $bx & 0xff
set $bh = $bx >> 8
# from rcx
set $ecx = $rcx & 0xffffffff
set $cx = $rcx & 0xffff
set $cl = $cx & 0xff
set $ch = $cx >> 8
# from rdx
set $edx = $rdx & 0xffffffff
set $dx = $rdx & 0xffff
set $dl = $dx & 0xff
set $dh = $dx >> 8
# from rsi
set $esi = $rsi & 0xffffffff
set $si = $rsi & 0xffff
# from rdi
set $edi = $rdi & 0xffffffff
set $di = $rdi & 0xffff
#32 bits stuff
else
# from eax
set $ax = $eax & 0xffff
set $al = $ax & 0xff
set $ah = $ax >> 8
# from ebx
set $bx = $ebx & 0xffff
set $bl = $bx & 0xff
set $bh = $bx >> 8
# from ecx
set $cx = $ecx & 0xffff
set $cl = $cx & 0xff
set $ch = $cx >> 8
# from edx
set $dx = $edx & 0xffff
set $dl = $dx & 0xff
set $dh = $dx >> 8
# from esi
set $si = $esi & 0xffff
# from edi
set $di = $edi & 0xffff
end
end
document smallregisters
Create the 16 and 8 bit cpu registers (gdb doesn't have them by default)
And 32bits if we are dealing with 64bits binaries
end
define func
if $argc == 0
info functions
end
if $argc == 1
info functions $arg0
end
if $argc > 1
help func
end
end
document func
Print all function names in target, or those matching REGEXP.
Usage: func <REGEXP>
end
define var
if $argc == 0
info variables
end
if $argc == 1
info variables $arg0
end
if $argc > 1
help var
end
end
document var
Print all global and static variable names (symbols), or those matching REGEXP.
Usage: var <REGEXP>
end
define lib
info sharedlibrary
end
document lib
Print shared libraries linked to target.
end
define sig
if $argc == 0
info signals
end
if $argc == 1
info signals $arg0
end
if $argc > 1
help sig
end
end
document sig
Print what debugger does when program gets various signals.
Specify a SIGNAL as argument to print info on that signal only.
Usage: sig <SIGNAL>
end
define threads
info threads
end
document threads
Print threads in target.
end
define dis
if $argc == 0
disassemble
end
if $argc == 1
disassemble $arg0
end
if $argc == 2
disassemble $arg0 $arg1
end
if $argc > 2
help dis
end
end
document dis
Disassemble a specified section of memory.
Default is to disassemble the function surrounding the PC (program counter)
of selected frame. With one argument, ADDR1, the function surrounding this
address is dumped. Two arguments are taken as a range of memory to dump.
Usage: dis <ADDR1> <ADDR2>
end
# __________hex/ascii dump an address_________
define ascii_char
if $argc != 1
help ascii_char
else
# thanks elaine :)
set $_c = *(unsigned char *)($arg0)
if ($_c < 0x20 || $_c > 0x7E)
printf "."
else
printf "%c", $_c
end
end
end
document ascii_char
Print ASCII value of byte at address ADDR.
Print "." if the value is unprintable.
Usage: ascii_char ADDR
end
define hex_quad
if $argc != 1
help hex_quad
else
printf "%02X %02X %02X %02X %02X %02X %02X %02X", \
*(unsigned char*)($arg0), *(unsigned char*)($arg0 + 1), \
*(unsigned char*)($arg0 + 2), *(unsigned char*)($arg0 + 3), \
*(unsigned char*)($arg0 + 4), *(unsigned char*)($arg0 + 5), \
*(unsigned char*)($arg0 + 6), *(unsigned char*)($arg0 + 7)
end
end
document hex_quad
Print eight hexadecimal bytes starting at address ADDR.
Usage: hex_quad ADDR
end
define hexdump
if $argc != 1
help hexdump
else
echo \033[1m
if ($64BITS == 1)
printf "0x%016lX : ", $arg0
else
printf "0x%08X : ", $arg0
end
echo \033[0m
hex_quad $arg0
echo \033[1m
printf " - "
echo \033[0m
hex_quad $arg0+8
printf " "
echo \033[1m
ascii_char $arg0+0x0
ascii_char $arg0+0x1
ascii_char $arg0+0x2
ascii_char $arg0+0x3
ascii_char $arg0+0x4
ascii_char $arg0+0x5
ascii_char $arg0+0x6
ascii_char $arg0+0x7
ascii_char $arg0+0x8
ascii_char $arg0+0x9
ascii_char $arg0+0xA
ascii_char $arg0+0xB
ascii_char $arg0+0xC
ascii_char $arg0+0xD
ascii_char $arg0+0xE
ascii_char $arg0+0xF
echo \033[0m
printf "\n"
end
end
document hexdump
Display a 16-byte hex/ASCII dump of memory at address ADDR.
Usage: hexdump ADDR
end
# _______________data window__________________
define ddump
if $argc != 1
help ddump
else
echo \033[34m
if ($64BITS == 1)
printf "[0x%04X:0x%016lX]", $ds, $data_addr
else
printf "[0x%04X:0x%08X]", $ds, $data_addr
end
echo \033[34m
printf "------------------------"
printf "-------------------------------"
if ($64BITS == 1)
printf "-------------------------------------"
end
echo \033[1;34m
printf "[data]\n"
echo \033[0m
set $_count = 0
while ($_count < $arg0)
set $_i = ($_count * 0x10)
hexdump $data_addr+$_i
set $_count++
end
end
end
document ddump
Display NUM lines of hexdump for address in $data_addr global variable.
Usage: ddump NUM
end
define dd
if $argc != 1
help dd
else
if ((($arg0 >> 0x18) == 0x40) || (($arg0 >> 0x18) == 0x08) || (($arg0 >> 0x18) == 0xBF))
set $data_addr = $arg0
ddump 0x10
else
printf "Invalid address: %08X\n", $arg0
end
end
end
document dd
Display 16 lines of a hex dump of address starting at ADDR.
Usage: dd ADDR
end
define datawin
if ($64BITS == 1)
if ((($rsi >> 0x18) == 0x40) || (($rsi >> 0x18) == 0x08) || (($rsi >> 0x18) == 0xBF))
set $data_addr = $rsi
else
if ((($rdi >> 0x18) == 0x40) || (($rdi >> 0x18) == 0x08) || (($rdi >> 0x18) == 0xBF))
set $data_addr = $rdi
else
if ((($rax >> 0x18) == 0x40) || (($rax >> 0x18) == 0x08) || (($rax >> 0x18) == 0xBF))
set $data_addr = $rax
else
set $data_addr = $rsp
end
end
end
else
if ((($esi >> 0x18) == 0x40) || (($esi >> 0x18) == 0x08) || (($esi >> 0x18) == 0xBF))
set $data_addr = $esi
else
if ((($edi >> 0x18) == 0x40) || (($edi >> 0x18) == 0x08) || (($edi >> 0x18) == 0xBF))
set $data_addr = $edi
else
if ((($eax >> 0x18) == 0x40) || (($eax >> 0x18) == 0x08) || (($eax >> 0x18) == 0xBF))
set $data_addr = $eax
else
set $data_addr = $esp
end
end
end
end
ddump $CONTEXTSIZE_DATA
end
document datawin
Display valid address from one register in data window.
Registers to choose are: esi, edi, eax, or esp.
end

1
install
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@ -27,6 +27,7 @@ declare -r -A TARGETS=(
["psql"]=".psqlrc"
["docker"]=".docker/cli-plugins"
["ipython"]=".ipython/profile_default/ipython_config.py"
["gdb"]=".config/gdb"
)
_die() {