def context_backtrace(frame_count=10,
with_banner=True,
target=sys.stdout,
width=None):
result = []
if with_banner:
result.append(pwndbg.ui.banner("backtrace", target=target,
width=width))
this_frame = gdb.selected_frame()
newest_frame = this_frame
oldest_frame = this_frame
for i in range(frame_count):
try:
candidate = oldest_frame.older()
except gdb.MemoryError:
break
if not candidate:
break
oldest_frame = candidate
for i in range(frame_count):
candidate = newest_frame.newer()
if not candidate:
break
newest_frame = candidate
frame = newest_frame
i = 0
bt_prefix = "%s" % B.config_prefix
while True:
prefix = bt_prefix if frame == this_frame else ' ' * len(bt_prefix)
prefix = " %s" % B.prefix(prefix)
addrsz = B.address(pwndbg.ui.addrsz(frame.pc()))
symbol = B.symbol(pwndbg.symbol.get(frame.pc()))
if symbol:
addrsz = addrsz + ' ' + symbol
line = map(str,
(prefix, B.frame_label('%s%i' %
(backtrace_frame_label, i)), addrsz))
line = ' '.join(line)
result.append(line)
if frame == oldest_frame:
break
frame = frame.older()
i += 1
return result
def context_backtrace(with_banner=True, target=sys.stdout, width=None):
result = []
if with_banner:
result.append(pwndbg.ui.banner("backtrace", target=target,
width=width))
this_frame = gdb.selected_frame()
newest_frame = this_frame
oldest_frame = this_frame
for i in range(backtrace_lines - 1):
try:
candidate = oldest_frame.older()
# We catch gdb.error in case of a `gdb.error: PC not saved` case
except (gdb.MemoryError, gdb.error):
break
if not candidate:
break
oldest_frame = candidate
for i in range(backtrace_lines - 1):
candidate = newest_frame.newer()
if not candidate:
break
newest_frame = candidate
frame = newest_frame
i = 0
bt_prefix = "%s" % B.config_prefix
while True:
prefix = bt_prefix if frame == this_frame else " " * len(bt_prefix)
prefix = " %s" % B.prefix(prefix)
addrsz = B.address(pwndbg.ui.addrsz(frame.pc()))
symbol = B.symbol(pwndbg.symbol.get(frame.pc()))
if symbol:
addrsz = addrsz + " " + symbol
line = map(str,
(prefix, B.frame_label("%s%i" %
(backtrace_frame_label, i)), addrsz))
line = " ".join(line)
result.append(line)
if frame == oldest_frame:
break
frame = frame.older()
i += 1
return result
def context_backtrace(frame_count=10, with_banner=True):
result = []
if with_banner:
result.append(pwndbg.ui.banner("backtrace"))
this_frame = gdb.selected_frame()
newest_frame = this_frame
oldest_frame = this_frame
for i in range(frame_count):
try:
candidate = oldest_frame.older()
except gdb.MemoryError:
break
if not candidate:
break
oldest_frame = candidate
for i in range(frame_count):
candidate = newest_frame.newer()
if not candidate:
break
newest_frame = candidate
frame = newest_frame
i = 0
bt_prefix = "%s" % B.config_prefix
while True:
prefix = bt_prefix if frame == this_frame else ' ' * len(bt_prefix)
prefix = " %s" % B.prefix(prefix)
addrsz = B.address(pwndbg.ui.addrsz(frame.pc()))
symbol = B.symbol(pwndbg.symbol.get(frame.pc()))
if symbol:
addrsz = addrsz + ' ' + symbol
line = map(str, (prefix, B.frame_label('%s%i' % (backtrace_frame_label, i)), addrsz))
line = ' '.join(line)
result.append(line)
if frame == oldest_frame:
break
frame = frame.older()
i += 1
return result
