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crit: The 'mems' explorer

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This one prints the /proc/pid/maps-like output, but with slightly more
details. Like this

1
	exe                                     /zdtm/live/static/maps00
	00400000-00406000                   r-x /zdtm/live/static/maps00
	00605000-00606000                   r-- /zdtm/live/static/maps00 + 0x5000
	00606000-00607000                   rw- /zdtm/live/static/maps00 + 0x6000
	7f4037845000-7f40379f9000           r-x /lib64/libc.so.6
	7f40379f9000-7f4037bf8000           --- /lib64/libc.so.6 + 0x1b4000
	7f4037bf8000-7f4037bfc000           r-- /lib64/libc.so.6 + 0x1b3000
	7f4037bfc000-7f4037bfe000           rw- /lib64/libc.so.6 + 0x1b7000
	7f4037bfe000-7f4037c03000           rw-
	7f4037c03000-7f4037c23000           r-x /lib64/ld-linux-x86-64.so.2
	7f4037e1e000-7f4037e22000           rw-
	7f4037e22000-7f4037e23000           r-- /lib64/ld-linux-x86-64.so.2 + 0x1f000
	7f4037e23000-7f4037e24000           rw- /lib64/ld-linux-x86-64.so.2 + 0x20000
	7f4037e24000-7f4037e25000           rw-
	7fff34652000-7fff34699000           rw- [stack?]
	7fff346e2000-7fff346e4000           r--
	7fff346e4000-7fff346e6000           r-x [vdso]
	ffffffffff600000-ffffffffff601000   r-x [vsyscall] *

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Pavel Emelyanov 2015-12-14 17:14:00 +03:00
parent 6c8f7bbb29
commit 25a978d32e
1 changed files with 62 additions and 2 deletions
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64
crit
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@ -152,7 +152,67 @@ def explore_fds(opts):
print "\t%7s: %s" % ('root', get_file_str(opts, {'type': 'REG', 'id': fdi['root_id']}))
explorers = { 'ps': explore_ps, 'fds': explore_fds }
class vma_id:
def __init__(self):
self.__ids = {}
self.__last = 1
def get(self, iid):
ret = self.__ids.get(iid, None)
if not ret:
ret = self.__last
self.__last += 1
self.__ids[iid] = ret
return ret
def explore_mems(opts):
ps_img = pycriu.images.load(dinf(opts, 'pstree.img'))
vids = vma_id()
for p in ps_img['entries']:
pid = p['pid']
mmi = pycriu.images.load(dinf(opts, 'mm-%d.img' % pid))['entries'][0]
print "%d" % pid
print "\t%-36s %s" % ('exe', get_file_str(opts, {'type': 'REG', 'id': mmi['exe_file_id']}))
for vma in mmi['vmas']:
st = vma['status']
if st & (1 << 10):
fn = ' ' + 'ips[%lx]' % vids.get(vma['shmid'])
elif st & (1 << 8):
fn = ' ' + 'shmem[%lx]' % vids.get(vma['shmid'])
elif st & (1 << 11):
fn = ' ' + 'packet[%lx]' % vids.get(vma['shmid'])
elif st & ((1 << 6) | (1 << 7)):
fn = ' ' + get_file_str(opts, {'type': 'REG', 'id': vma['shmid']})
if vma['pgoff']:
fn += ' + %#lx' % vma['pgoff']
if st & (1 << 7):
fn += ' (s)'
elif st & (1 << 1):
fn = ' [stack]'
elif st & (1 << 2):
fn = ' [vsyscall]'
elif st & (1 << 3):
fn = ' [vdso]'
elif vma['flags'] & 0x0100: # growsdown
fn = ' [stack?]'
else:
fn = ''
if not st & (1 << 0):
fn += ' *'
prot = vma['prot'] & 0x1 and 'r' or '-'
prot += vma['prot'] & 0x2 and 'w' or '-'
prot += vma['prot'] & 0x4 and 'x' or '-'
astr = '%08lx-%08lx' % (vma['start'], vma['end'])
print "\t%-36s%s%s" % (astr, prot, fn)
explorers = { 'ps': explore_ps, 'fds': explore_fds, 'mems': explore_mems }
def explore(opts):
explorers[opts['what']](opts)
@ -198,7 +258,7 @@ def main():
# Explore
x_parser = subparsers.add_parser('x', help = 'explore image dir')
x_parser.add_argument('dir')
x_parser.add_argument('what', choices = [ 'ps', 'fds' ])
x_parser.add_argument('what', choices = [ 'ps', 'fds', 'mems' ])
x_parser.set_defaults(func=explore)
# Show