From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55769) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f1EwH-00004y-5A for qemu-devel@nongnu.org; Wed, 28 Mar 2018 13:32:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f1EwE-0003x9-HD for qemu-devel@nongnu.org; Wed, 28 Mar 2018 13:32:45 -0400 Received: from relay.sw.ru ([185.231.240.75]:45858) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1f1EwE-0003wJ-8F for qemu-devel@nongnu.org; Wed, 28 Mar 2018 13:32:42 -0400 From: Vladimir Sementsov-Ogievskiy Date: Wed, 28 Mar 2018 20:32:36 +0300 Message-Id: <20180328173238.507470-3-vsementsov@virtuozzo.com> In-Reply-To: <20180328173238.507470-1-vsementsov@virtuozzo.com> References: <20180328173238.507470-1-vsementsov@virtuozzo.com> Subject: [Qemu-devel] [PATCH 2/4] scripts/qemugdb: improve "qemu coroutine" command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: stefanha@redhat.com, pbonzini@redhat.com, vsementsov@virtuozzo.com, den@openvz.org - print regs - catch exception for coredump debugging Signed-off-by: Vladimir Sementsov-Ogievskiy --- 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 \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