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qemu-iotests: add option to attach gdbserver

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Define -gdb flag and GDB_OPTIONS environment variable
to python tests to attach a gdbserver to each qemu instance.
This patch only adds and parses this flag, it does not yet add
the implementation for it.

if -gdb is not provided but $GDB_OPTIONS is set, ignore the
environment variable.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210809090114.64834-6-eesposit@redhat.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2021-08-09 11:01:03 +02:00 • committed by Hanna Reitz
parent 0193767b25
commit cfb9b0b731
3 changed files with 25 additions and 3 deletions
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17
tests/qemu-iotests/testenv.py
View file

@ -27,6 +27,7 @@ import subprocess
import glob
from typing import List, Dict, Any, Optional, ContextManager
DEF_GDB_OPTIONS = 'localhost:12345'
def isxfile(path: str) -> bool:
return os.path.isfile(path) and os.access(path, os.X_OK)
@ -72,7 +73,8 @@ class TestEnv(ContextManager['TestEnv']):
'QEMU_NBD_OPTIONS', 'IMGOPTS', 'IMGFMT', 'IMGPROTO',
'AIOMODE', 'CACHEMODE', 'VALGRIND_QEMU',
'CACHEMODE_IS_DEFAULT', 'IMGFMT_GENERIC', 'IMGOPTSSYNTAX',
'IMGKEYSECRET', 'QEMU_DEFAULT_MACHINE', 'MALLOC_PERTURB_']
'IMGKEYSECRET', 'QEMU_DEFAULT_MACHINE', 'MALLOC_PERTURB_',
'GDB_OPTIONS']
def prepare_subprocess(self, args: List[str]) -> Dict[str, str]:
if self.debug:
@ -178,7 +180,8 @@ class TestEnv(ContextManager['TestEnv']):
imgopts: Optional[str] = None,
misalign: bool = False,
debug: bool = False,
valgrind: bool = False) -> None:
valgrind: bool = False,
gdb: bool = False) -> None:
self.imgfmt = imgfmt
self.imgproto = imgproto
self.aiomode = aiomode
@ -186,6 +189,15 @@ class TestEnv(ContextManager['TestEnv']):
self.misalign = misalign
self.debug = debug
if gdb:
self.gdb_options = os.getenv('GDB_OPTIONS', DEF_GDB_OPTIONS)
if not self.gdb_options:
# cover the case 'export GDB_OPTIONS='
self.gdb_options = DEF_GDB_OPTIONS
elif 'GDB_OPTIONS' in os.environ:
# to not propagate it in prepare_subprocess()
del os.environ['GDB_OPTIONS']
if valgrind:
self.valgrind_qemu = 'y'
@ -285,6 +297,7 @@ PLATFORM -- {platform}
TEST_DIR -- {TEST_DIR}
SOCK_DIR -- {SOCK_DIR}
SOCKET_SCM_HELPER -- {SOCKET_SCM_HELPER}
GDB_OPTIONS -- {GDB_OPTIONS}
"""
args = collections.defaultdict(str, self.get_env())