- print regs - catch exception for coredump debugging Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- scripts/qemugdb/coroutine.py | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/scripts/qemugdb/coroutine.py b/scripts/qemugdb/coroutine.py index ffaa45c464..7070a592f3 100644 --- a/scripts/qemugdb/coroutine.py +++ b/scripts/qemugdb/coroutine.py @@ -80,9 +80,8 @@ def get_jmpbuf_regs(jmpbuf): 'r15': jmpbuf[JB_R15], 'rip': glibc_ptr_demangle(jmpbuf[JB_PC], pointer_guard) } -def bt_jmpbuf(jmpbuf): - '''Backtrace a jmpbuf''' - regs = get_jmpbuf_regs(jmpbuf) +def bt_regs(regs): + '''Backtrace with specified regs''' old = dict() for i in regs: @@ -113,7 +112,18 @@ class CoroutineCommand(gdb.Command): gdb.write('usage: qemu coroutine <coroutine-pointer>\n') return - bt_jmpbuf(coroutine_to_jmpbuf(gdb.parse_and_eval(argv[0]))) + jmpbuf = coroutine_to_jmpbuf(gdb.parse_and_eval(argv[0])) + regs = get_jmpbuf_regs(jmpbuf) + for k, v in regs.iteritems(): + gdb.write('%s: 0x%x\n' %(k,v)) + + gdb.write('\n') + + try: + bt_regs(regs) + except gdb.error: + print "Coroutine backtrace can't be obtained without " \ + "a process to debug." class CoroutineSPFunction(gdb.Function): def __init__(self): -- 2.11.1