diff mbox series

[v3,2/3] tests/tcg: Factor out gdbstub test functions

Message ID 20240116003551.75168-3-iii@linux.ibm.com (mailing list archive)
State New, archived
Headers show
Series linux-user: Allow gdbstub to ignore page protection | expand

Commit Message

Ilya Leoshkevich Jan. 16, 2024, 12:31 a.m. UTC
Both the report() function as well as the initial gdbstub test sequence
are copy-pasted into ~10 files with slight modifications. This
indicates that they are indeed generic, so factor them out. While
at it, add a few newlines to make the formatting closer to PEP-8.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 tests/guest-debug/run-test.py                 |  7 ++-
 tests/guest-debug/test_gdbstub.py             | 58 +++++++++++++++++++
 tests/tcg/aarch64/gdbstub/test-sve-ioctl.py   | 34 +----------
 tests/tcg/aarch64/gdbstub/test-sve.py         | 33 +----------
 tests/tcg/multiarch/gdbstub/interrupt.py      | 47 ++-------------
 tests/tcg/multiarch/gdbstub/memory.py         | 41 +------------
 tests/tcg/multiarch/gdbstub/registers.py      | 41 ++-----------
 tests/tcg/multiarch/gdbstub/sha1.py           | 40 ++-----------
 .../multiarch/gdbstub/test-proc-mappings.py   | 39 +------------
 .../multiarch/gdbstub/test-qxfer-auxv-read.py | 37 +-----------
 .../gdbstub/test-thread-breakpoint.py         | 37 +-----------
 tests/tcg/s390x/gdbstub/test-signals-s390x.py | 42 +-------------
 tests/tcg/s390x/gdbstub/test-svc.py           | 39 +------------
 13 files changed, 98 insertions(+), 397 deletions(-)
 create mode 100644 tests/guest-debug/test_gdbstub.py

Comments

Alex Bennée Jan. 22, 2024, 4 p.m. UTC | #1
Ilya Leoshkevich <iii@linux.ibm.com> writes:

> Both the report() function as well as the initial gdbstub test sequence
> are copy-pasted into ~10 files with slight modifications. This
> indicates that they are indeed generic, so factor them out. While
> at it, add a few newlines to make the formatting closer to PEP-8.
>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
> ---
>  tests/guest-debug/run-test.py                 |  7 ++-
>  tests/guest-debug/test_gdbstub.py             | 58 +++++++++++++++++++
>  tests/tcg/aarch64/gdbstub/test-sve-ioctl.py   | 34 +----------
>  tests/tcg/aarch64/gdbstub/test-sve.py         | 33 +----------
>  tests/tcg/multiarch/gdbstub/interrupt.py      | 47 ++-------------
>  tests/tcg/multiarch/gdbstub/memory.py         | 41 +------------
>  tests/tcg/multiarch/gdbstub/registers.py      | 41 ++-----------
>  tests/tcg/multiarch/gdbstub/sha1.py           | 40 ++-----------
>  .../multiarch/gdbstub/test-proc-mappings.py   | 39 +------------
>  .../multiarch/gdbstub/test-qxfer-auxv-read.py | 37 +-----------
>  .../gdbstub/test-thread-breakpoint.py         | 37 +-----------
>  tests/tcg/s390x/gdbstub/test-signals-s390x.py | 42 +-------------
>  tests/tcg/s390x/gdbstub/test-svc.py           | 39 +------------
>  13 files changed, 98 insertions(+), 397 deletions(-)
>  create mode 100644 tests/guest-debug/test_gdbstub.py
>
> diff --git a/tests/guest-debug/run-test.py b/tests/guest-debug/run-test.py
> index b13b27d4b19..368ff8a8903 100755
> --- a/tests/guest-debug/run-test.py
> +++ b/tests/guest-debug/run-test.py
> @@ -97,7 +97,12 @@ def log(output, msg):
>      sleep(1)
>      log(output, "GDB CMD: %s" % (gdb_cmd))
>  
> -    result = subprocess.call(gdb_cmd, shell=True, stdout=output, stderr=stderr)
> +    gdb_env = dict(os.environ)
> +    gdb_pythonpath = gdb_env.get("PYTHONPATH", "").split(os.pathsep)
> +    gdb_pythonpath.append(os.path.dirname(os.path.realpath(__file__)))
> +    gdb_env["PYTHONPATH"] = os.pathsep.join(gdb_pythonpath)
> +    result = subprocess.call(gdb_cmd, shell=True, stdout=output, stderr=stderr,
> +                             env=gdb_env)
>  
>      # A result of greater than 128 indicates a fatal signal (likely a
>      # crash due to gdb internal failure). That's a problem for GDB and
> diff --git a/tests/guest-debug/test_gdbstub.py b/tests/guest-debug/test_gdbstub.py
> new file mode 100644
> index 00000000000..a71cdaa915a
> --- /dev/null
> +++ b/tests/guest-debug/test_gdbstub.py
> @@ -0,0 +1,58 @@
> +"""Helper functions for gdbstub testing
> +
> +"""
> +from __future__ import print_function
> +import gdb
> +import sys
> +import traceback
> +
> +fail_count = 0
> +
> +
> +def report(cond, msg):
> +    """Report success/fail of a test"""
> +    if cond:
> +        print("PASS: {}".format(msg))
> +    else:
> +        print("FAIL: {}".format(msg))
> +        global fail_count
> +        fail_count += 1
> +
> +
> +def main(test, expected_arch=None):
> +    """Run a test function
> +
> +    This runs as the script it sourced (via -x, via run-test.py)."""
> +    try:
> +        inferior = gdb.selected_inferior()
> +        arch = inferior.architecture()
> +        print("ATTACHED: {}".format(arch.name()))
> +        if expected_arch is not None:
> +            report(arch.name() == expected_arch,
> +                   "connected to {}".format(expected_arch))
> +    except (gdb.error, AttributeError):
> +        print("SKIP: not connected")
> +        exit(0)
> +
> +    if gdb.parse_and_eval("$pc") == 0:
> +        print("SKIP: PC not set")
> +        exit(0)
> +
> +    try:
> +        test()
> +    except:
> +        print("GDB Exception:")
> +        traceback.print_exc(file=sys.stdout)
> +        global fail_count
> +        fail_count += 1
> +        import code
> +        code.InteractiveConsole(locals=globals()).interact()
> +        raise

While I can see this is useful we don't want to default to an
interactive console as that will hang the test in CI type setups. Can we
make this a option we enable?

> +
> +    try:
> +        gdb.execute("kill")
> +    except gdb.error:
> +        pass
> +
> +    print("All tests complete: {} failures".format(fail_count))
> +    exit(fail_count)
> diff --git a/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py b/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
> index ee8d467e59d..a78a3a2514d 100644
> --- a/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
> +++ b/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
> @@ -8,19 +8,10 @@
>  #
>  
>  import gdb
> -import sys
> +from test_gdbstub import main, report
>  
>  initial_vlen = 0
> -failcount = 0
>  
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print ("PASS: %s" % (msg))
> -    else:
> -        print ("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
>  
>  class TestBreakpoint(gdb.Breakpoint):
>      def __init__(self, sym_name="__sve_ld_done"):
> @@ -64,26 +55,5 @@ def run_test():
>  
>      gdb.execute("c")
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    report(arch.name() == "aarch64", "connected to aarch64")
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except:
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    import code
> -    code.InteractiveConsole(locals=globals()).interact()
> -    raise
>  
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +main(run_test, expected_arch="aarch64")
> diff --git a/tests/tcg/aarch64/gdbstub/test-sve.py b/tests/tcg/aarch64/gdbstub/test-sve.py
> index afd8ece98dd..84cdcd4a32e 100644
> --- a/tests/tcg/aarch64/gdbstub/test-sve.py
> +++ b/tests/tcg/aarch64/gdbstub/test-sve.py
> @@ -6,20 +6,10 @@
>  #
>  
>  import gdb
> -import sys
> +from test_gdbstub import main, report
>  
>  MAGIC = 0xDEADBEEF
>  
> -failcount = 0
> -
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print ("PASS: %s" % (msg))
> -    else:
> -        print ("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
>  
>  def run_test():
>      "Run through the tests one by one"
> @@ -54,24 +44,5 @@ def run_test():
>              report(str(v.type) == "uint64_t", "size of %s" % (reg))
>              report(int(v) == MAGIC, "%s is 0x%x" % (reg, MAGIC))
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    report(arch.name() == "aarch64", "connected to aarch64")
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except:
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -
> -print("All tests complete: %d failures" % failcount)
>  
> -exit(failcount)
> +main(run_test, expected_arch="aarch64")
> diff --git a/tests/tcg/multiarch/gdbstub/interrupt.py b/tests/tcg/multiarch/gdbstub/interrupt.py
> index c016e7afbbf..90a45b5140a 100644
> --- a/tests/tcg/multiarch/gdbstub/interrupt.py
> +++ b/tests/tcg/multiarch/gdbstub/interrupt.py
> @@ -8,19 +8,7 @@
>  #
>  
>  import gdb
> -import sys
> -
> -failcount = 0
> -
> -
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print("PASS: %s" % (msg))
> -    else:
> -        print("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
> +from test_gdbstub import main, report
>  
>  
>  def check_interrupt(thread):
> @@ -59,6 +47,9 @@ def run_test():
>      Test if interrupting the code always lands us on the same thread when
>      running with scheduler-lock enabled.
>      """
> +    if len(gdb.selected_inferior().threads()) == 1:
> +        print("SKIP: set to run on a single thread")
> +        exit(0)
>  
>      gdb.execute("set scheduler-locking on")
>      for thread in gdb.selected_inferior().threads():
> @@ -66,32 +57,4 @@ def run_test():
>                 "thread %d resumes correctly on interrupt" % thread.num)
>  
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -if len(gdb.selected_inferior().threads()) == 1:
> -    print("SKIP: set to run on a single thread")
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
> -
> -# Finally kill the inferior and exit gdb with a count of failures
> -gdb.execute("kill")
> -exit(failcount)
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/memory.py b/tests/tcg/multiarch/gdbstub/memory.py
> index fb1d06b7bb7..532b92e7fb3 100644
> --- a/tests/tcg/multiarch/gdbstub/memory.py
> +++ b/tests/tcg/multiarch/gdbstub/memory.py
> @@ -9,18 +9,7 @@
>  
>  import gdb
>  import sys
> -
> -failcount = 0
> -
> -
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print("PASS: %s" % (msg))
> -    else:
> -        print("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
> +from test_gdbstub import main, report
>  
>  
>  def check_step():
> @@ -99,29 +88,5 @@ def run_test():
>  
>      report(cbp.hit_count == 0, "didn't reach backstop")
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
> -
> -# Finally kill the inferior and exit gdb with a count of failures
> -gdb.execute("kill")
> -exit(failcount)
> +
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/registers.py b/tests/tcg/multiarch/gdbstub/registers.py
> index 688c0611072..b3d13cb077f 100644
> --- a/tests/tcg/multiarch/gdbstub/registers.py
> +++ b/tests/tcg/multiarch/gdbstub/registers.py
> @@ -7,20 +7,11 @@
>  # SPDX-License-Identifier: GPL-2.0-or-later
>  
>  import gdb
> -import sys
>  import xml.etree.ElementTree as ET
> +from test_gdbstub import main, report
>  
> -initial_vlen = 0
> -failcount = 0
>  
> -def report(cond, msg):
> -    "Report success/fail of test."
> -    if cond:
> -        print("PASS: %s" % (msg))
> -    else:
> -        print("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
> +initial_vlen = 0
>  
>  
>  def fetch_xml_regmap():
> @@ -75,6 +66,7 @@ def fetch_xml_regmap():
>  
>      return reg_map
>  
> +
>  def get_register_by_regnum(reg_map, regnum):
>      """
>      Helper to find a register from the map via its XML regnum
> @@ -84,6 +76,7 @@ def get_register_by_regnum(reg_map, regnum):
>              return entry
>      return None
>  
> +
>  def crosscheck_remote_xml(reg_map):
>      """
>      Cross-check the list of remote-registers with the XML info.
> @@ -144,6 +137,7 @@ def crosscheck_remote_xml(reg_map):
>          elif "seen" not in x_reg:
>              print(f"{x_reg} wasn't seen in remote-registers")
>  
> +
>  def initial_register_read(reg_map):
>      """
>      Do an initial read of all registers that we know gdb cares about
> @@ -214,27 +208,4 @@ def run_test():
>          complete_and_diff(reg_map)
>  
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -
> -try:
> -    run_test()
> -except (gdb.error):
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
> -
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/sha1.py b/tests/tcg/multiarch/gdbstub/sha1.py
> index 416728415f9..1ce711a402c 100644
> --- a/tests/tcg/multiarch/gdbstub/sha1.py
> +++ b/tests/tcg/multiarch/gdbstub/sha1.py
> @@ -7,19 +7,11 @@
>  #
>  
>  import gdb
> -import sys
> +from test_gdbstub import main, report
> +
>  
>  initial_vlen = 0
> -failcount = 0
>  
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print("PASS: %s" % (msg))
> -    else:
> -        print("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
>  
>  def check_break(sym_name):
>      "Setup breakpoint, continue and check we stopped."
> @@ -35,6 +27,7 @@ def check_break(sym_name):
>  
>      bp.delete()
>  
> +
>  def run_test():
>      "Run through the tests one by one"
>  
> @@ -57,28 +50,5 @@ def run_test():
>      # finally check we don't barf inspecting registers
>      gdb.execute("info registers")
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
> -
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/test-proc-mappings.py b/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
> index 04ec61d2197..564613fabf0 100644
> --- a/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
> +++ b/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
> @@ -3,20 +3,7 @@
>  This runs as a sourced script (via -x, via run-test.py)."""
>  from __future__ import print_function
>  import gdb
> -import sys
> -
> -
> -n_failures = 0
> -
> -
> -def report(cond, msg):
> -    """Report success/fail of a test"""
> -    if cond:
> -        print("PASS: {}".format(msg))
> -    else:
> -        print("FAIL: {}".format(msg))
> -        global n_failures
> -        n_failures += 1
> +from test_gdbstub import main, report
>  
>  
>  def run_test():
> @@ -37,26 +24,4 @@ def run_test():
>      # report("/sha1" in mappings, "Found the test binary name in the mappings")
>  
>  
> -def main():
> -    """Prepare the environment and run through the tests"""
> -    try:
> -        inferior = gdb.selected_inferior()
> -        print("ATTACHED: {}".format(inferior.architecture().name()))
> -    except (gdb.error, AttributeError):
> -        print("SKIPPING (not connected)")
> -        exit(0)
> -
> -    if gdb.parse_and_eval('$pc') == 0:
> -        print("SKIP: PC not set")
> -        exit(0)
> -
> -    try:
> -        # Run the actual tests
> -        run_test()
> -    except gdb.error:
> -        report(False, "GDB Exception: {}".format(sys.exc_info()[0]))
> -    print("All tests complete: %d failures" % n_failures)
> -    exit(n_failures)
> -
> -
> -main()
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py b/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
> index 926fa962b77..00c26ab4a95 100644
> --- a/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
> +++ b/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
> @@ -6,18 +6,8 @@
>  #
>  
>  import gdb
> -import sys
> +from test_gdbstub import main, report
>  
> -failcount = 0
> -
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print ("PASS: %s" % (msg))
> -    else:
> -        print ("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
>  
>  def run_test():
>      "Run through the tests one by one"
> @@ -26,28 +16,5 @@ def run_test():
>      report(isinstance(auxv, str), "Fetched auxv from inferior")
>      report(auxv.find("sha1"), "Found test binary name in auxv")
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
>  
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +main(run_test)
> diff --git a/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py b/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
> index e57d2a8db8b..4d6b6b9fbe7 100644
> --- a/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
> +++ b/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
> @@ -6,18 +6,8 @@
>  #
>  
>  import gdb
> -import sys
> +from test_gdbstub import main, report
>  
> -failcount = 0
> -
> -def report(cond, msg):
> -    "Report success/fail of test"
> -    if cond:
> -        print ("PASS: %s" % (msg))
> -    else:
> -        print ("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
>  
>  def run_test():
>      "Run through the tests one by one"
> @@ -29,28 +19,5 @@ def run_test():
>      frame = gdb.selected_frame()
>      report(str(frame.function()) == "thread1_func", "break @ %s"%frame)
>  
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval('$pc') == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> -
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print ("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
>  
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +main(run_test)
> diff --git a/tests/tcg/s390x/gdbstub/test-signals-s390x.py b/tests/tcg/s390x/gdbstub/test-signals-s390x.py
> index ca2bbc0b03e..b6b7b39fc46 100644
> --- a/tests/tcg/s390x/gdbstub/test-signals-s390x.py
> +++ b/tests/tcg/s390x/gdbstub/test-signals-s390x.py
> @@ -7,19 +7,7 @@
>  #
>  
>  import gdb
> -import sys
> -
> -failcount = 0
> -
> -
> -def report(cond, msg):
> -    """Report success/fail of test"""
> -    if cond:
> -        print("PASS: %s" % (msg))
> -    else:
> -        print("FAIL: %s" % (msg))
> -        global failcount
> -        failcount += 1
> +from test_gdbstub import main, report
>  
>  
>  def run_test():
> @@ -42,31 +30,7 @@ def run_test():
>      gdb.Breakpoint("_exit")
>      gdb.execute("c")
>      status = int(gdb.parse_and_eval("$r2"))
> -    report(status == 0, "status == 0");
> -
> -
> -#
> -# This runs as the script it sourced (via -x, via run-test.py)
> -#
> -try:
> -    inferior = gdb.selected_inferior()
> -    arch = inferior.architecture()
> -    print("ATTACHED: %s" % arch.name())
> -except (gdb.error, AttributeError):
> -    print("SKIPPING (not connected)", file=sys.stderr)
> -    exit(0)
> -
> -if gdb.parse_and_eval("$pc") == 0:
> -    print("SKIP: PC not set")
> -    exit(0)
> +    report(status == 0, "status == 0")
>  
> -try:
> -    # Run the actual tests
> -    run_test()
> -except (gdb.error):
> -    print("GDB Exception: %s" % (sys.exc_info()[0]))
> -    failcount += 1
> -    pass
>  
> -print("All tests complete: %d failures" % failcount)
> -exit(failcount)
> +main(run_test)
> diff --git a/tests/tcg/s390x/gdbstub/test-svc.py b/tests/tcg/s390x/gdbstub/test-svc.py
> index 804705fede9..17210b4e020 100644
> --- a/tests/tcg/s390x/gdbstub/test-svc.py
> +++ b/tests/tcg/s390x/gdbstub/test-svc.py
> @@ -3,20 +3,7 @@
>  This runs as a sourced script (via -x, via run-test.py)."""
>  from __future__ import print_function
>  import gdb
> -import sys
> -
> -
> -n_failures = 0
> -
> -
> -def report(cond, msg):
> -    """Report success/fail of a test"""
> -    if cond:
> -        print("PASS: {}".format(msg))
> -    else:
> -        print("FAIL: {}".format(msg))
> -        global n_failures
> -        n_failures += 1
> +from test_gdbstub import main, report
>  
>  
>  def run_test():
> @@ -35,26 +22,4 @@ def run_test():
>      gdb.execute("si")
>  
>  
> -def main():
> -    """Prepare the environment and run through the tests"""
> -    try:
> -        inferior = gdb.selected_inferior()
> -        print("ATTACHED: {}".format(inferior.architecture().name()))
> -    except (gdb.error, AttributeError):
> -        print("SKIPPING (not connected)")
> -        exit(0)
> -
> -    if gdb.parse_and_eval('$pc') == 0:
> -        print("SKIP: PC not set")
> -        exit(0)
> -
> -    try:
> -        # Run the actual tests
> -        run_test()
> -    except gdb.error:
> -        report(False, "GDB Exception: {}".format(sys.exc_info()[0]))
> -    print("All tests complete: %d failures" % n_failures)
> -    exit(n_failures)
> -
> -
> -main()
> +main(run_test)
Ilya Leoshkevich Jan. 22, 2024, 9:08 p.m. UTC | #2
On Mon, Jan 22, 2024 at 04:00:44PM +0000, Alex Bennée wrote:
> Ilya Leoshkevich <iii@linux.ibm.com> writes:
> 
> > Both the report() function as well as the initial gdbstub test sequence
> > are copy-pasted into ~10 files with slight modifications. This
> > indicates that they are indeed generic, so factor them out. While
> > at it, add a few newlines to make the formatting closer to PEP-8.
> >
> > Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
> > ---
> >  tests/guest-debug/run-test.py                 |  7 ++-
> >  tests/guest-debug/test_gdbstub.py             | 58 +++++++++++++++++++
> >  tests/tcg/aarch64/gdbstub/test-sve-ioctl.py   | 34 +----------
> >  tests/tcg/aarch64/gdbstub/test-sve.py         | 33 +----------
> >  tests/tcg/multiarch/gdbstub/interrupt.py      | 47 ++-------------
> >  tests/tcg/multiarch/gdbstub/memory.py         | 41 +------------
> >  tests/tcg/multiarch/gdbstub/registers.py      | 41 ++-----------
> >  tests/tcg/multiarch/gdbstub/sha1.py           | 40 ++-----------
> >  .../multiarch/gdbstub/test-proc-mappings.py   | 39 +------------
> >  .../multiarch/gdbstub/test-qxfer-auxv-read.py | 37 +-----------
> >  .../gdbstub/test-thread-breakpoint.py         | 37 +-----------
> >  tests/tcg/s390x/gdbstub/test-signals-s390x.py | 42 +-------------
> >  tests/tcg/s390x/gdbstub/test-svc.py           | 39 +------------
> >  13 files changed, 98 insertions(+), 397 deletions(-)
> >  create mode 100644 tests/guest-debug/test_gdbstub.py

[...]

> > +    if gdb.parse_and_eval("$pc") == 0:
> > +        print("SKIP: PC not set")
> > +        exit(0)
> > +
> > +    try:
> > +        test()
> > +    except:
> > +        print("GDB Exception:")
> > +        traceback.print_exc(file=sys.stdout)
> > +        global fail_count
> > +        fail_count += 1
> > +        import code
> > +        code.InteractiveConsole(locals=globals()).interact()
> > +        raise
> 
> While I can see this is useful we don't want to default to an
> interactive console as that will hang the test in CI type setups. Can we
> make this a option we enable?

Would something like `export QEMU_TEST_INTERACTIVE=1` be okay?

[...]
diff mbox series

Patch

diff --git a/tests/guest-debug/run-test.py b/tests/guest-debug/run-test.py
index b13b27d4b19..368ff8a8903 100755
--- a/tests/guest-debug/run-test.py
+++ b/tests/guest-debug/run-test.py
@@ -97,7 +97,12 @@  def log(output, msg):
     sleep(1)
     log(output, "GDB CMD: %s" % (gdb_cmd))
 
-    result = subprocess.call(gdb_cmd, shell=True, stdout=output, stderr=stderr)
+    gdb_env = dict(os.environ)
+    gdb_pythonpath = gdb_env.get("PYTHONPATH", "").split(os.pathsep)
+    gdb_pythonpath.append(os.path.dirname(os.path.realpath(__file__)))
+    gdb_env["PYTHONPATH"] = os.pathsep.join(gdb_pythonpath)
+    result = subprocess.call(gdb_cmd, shell=True, stdout=output, stderr=stderr,
+                             env=gdb_env)
 
     # A result of greater than 128 indicates a fatal signal (likely a
     # crash due to gdb internal failure). That's a problem for GDB and
diff --git a/tests/guest-debug/test_gdbstub.py b/tests/guest-debug/test_gdbstub.py
new file mode 100644
index 00000000000..a71cdaa915a
--- /dev/null
+++ b/tests/guest-debug/test_gdbstub.py
@@ -0,0 +1,58 @@ 
+"""Helper functions for gdbstub testing
+
+"""
+from __future__ import print_function
+import gdb
+import sys
+import traceback
+
+fail_count = 0
+
+
+def report(cond, msg):
+    """Report success/fail of a test"""
+    if cond:
+        print("PASS: {}".format(msg))
+    else:
+        print("FAIL: {}".format(msg))
+        global fail_count
+        fail_count += 1
+
+
+def main(test, expected_arch=None):
+    """Run a test function
+
+    This runs as the script it sourced (via -x, via run-test.py)."""
+    try:
+        inferior = gdb.selected_inferior()
+        arch = inferior.architecture()
+        print("ATTACHED: {}".format(arch.name()))
+        if expected_arch is not None:
+            report(arch.name() == expected_arch,
+                   "connected to {}".format(expected_arch))
+    except (gdb.error, AttributeError):
+        print("SKIP: not connected")
+        exit(0)
+
+    if gdb.parse_and_eval("$pc") == 0:
+        print("SKIP: PC not set")
+        exit(0)
+
+    try:
+        test()
+    except:
+        print("GDB Exception:")
+        traceback.print_exc(file=sys.stdout)
+        global fail_count
+        fail_count += 1
+        import code
+        code.InteractiveConsole(locals=globals()).interact()
+        raise
+
+    try:
+        gdb.execute("kill")
+    except gdb.error:
+        pass
+
+    print("All tests complete: {} failures".format(fail_count))
+    exit(fail_count)
diff --git a/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py b/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
index ee8d467e59d..a78a3a2514d 100644
--- a/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
+++ b/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py
@@ -8,19 +8,10 @@ 
 #
 
 import gdb
-import sys
+from test_gdbstub import main, report
 
 initial_vlen = 0
-failcount = 0
 
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print ("PASS: %s" % (msg))
-    else:
-        print ("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
 
 class TestBreakpoint(gdb.Breakpoint):
     def __init__(self, sym_name="__sve_ld_done"):
@@ -64,26 +55,5 @@  def run_test():
 
     gdb.execute("c")
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    report(arch.name() == "aarch64", "connected to aarch64")
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except:
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    import code
-    code.InteractiveConsole(locals=globals()).interact()
-    raise
 
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+main(run_test, expected_arch="aarch64")
diff --git a/tests/tcg/aarch64/gdbstub/test-sve.py b/tests/tcg/aarch64/gdbstub/test-sve.py
index afd8ece98dd..84cdcd4a32e 100644
--- a/tests/tcg/aarch64/gdbstub/test-sve.py
+++ b/tests/tcg/aarch64/gdbstub/test-sve.py
@@ -6,20 +6,10 @@ 
 #
 
 import gdb
-import sys
+from test_gdbstub import main, report
 
 MAGIC = 0xDEADBEEF
 
-failcount = 0
-
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print ("PASS: %s" % (msg))
-    else:
-        print ("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
 
 def run_test():
     "Run through the tests one by one"
@@ -54,24 +44,5 @@  def run_test():
             report(str(v.type) == "uint64_t", "size of %s" % (reg))
             report(int(v) == MAGIC, "%s is 0x%x" % (reg, MAGIC))
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    report(arch.name() == "aarch64", "connected to aarch64")
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except:
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-
-print("All tests complete: %d failures" % failcount)
 
-exit(failcount)
+main(run_test, expected_arch="aarch64")
diff --git a/tests/tcg/multiarch/gdbstub/interrupt.py b/tests/tcg/multiarch/gdbstub/interrupt.py
index c016e7afbbf..90a45b5140a 100644
--- a/tests/tcg/multiarch/gdbstub/interrupt.py
+++ b/tests/tcg/multiarch/gdbstub/interrupt.py
@@ -8,19 +8,7 @@ 
 #
 
 import gdb
-import sys
-
-failcount = 0
-
-
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print("PASS: %s" % (msg))
-    else:
-        print("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
+from test_gdbstub import main, report
 
 
 def check_interrupt(thread):
@@ -59,6 +47,9 @@  def run_test():
     Test if interrupting the code always lands us on the same thread when
     running with scheduler-lock enabled.
     """
+    if len(gdb.selected_inferior().threads()) == 1:
+        print("SKIP: set to run on a single thread")
+        exit(0)
 
     gdb.execute("set scheduler-locking on")
     for thread in gdb.selected_inferior().threads():
@@ -66,32 +57,4 @@  def run_test():
                "thread %d resumes correctly on interrupt" % thread.num)
 
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-if len(gdb.selected_inferior().threads()) == 1:
-    print("SKIP: set to run on a single thread")
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
-
-# Finally kill the inferior and exit gdb with a count of failures
-gdb.execute("kill")
-exit(failcount)
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/memory.py b/tests/tcg/multiarch/gdbstub/memory.py
index fb1d06b7bb7..532b92e7fb3 100644
--- a/tests/tcg/multiarch/gdbstub/memory.py
+++ b/tests/tcg/multiarch/gdbstub/memory.py
@@ -9,18 +9,7 @@ 
 
 import gdb
 import sys
-
-failcount = 0
-
-
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print("PASS: %s" % (msg))
-    else:
-        print("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
+from test_gdbstub import main, report
 
 
 def check_step():
@@ -99,29 +88,5 @@  def run_test():
 
     report(cbp.hit_count == 0, "didn't reach backstop")
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
-
-# Finally kill the inferior and exit gdb with a count of failures
-gdb.execute("kill")
-exit(failcount)
+
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/registers.py b/tests/tcg/multiarch/gdbstub/registers.py
index 688c0611072..b3d13cb077f 100644
--- a/tests/tcg/multiarch/gdbstub/registers.py
+++ b/tests/tcg/multiarch/gdbstub/registers.py
@@ -7,20 +7,11 @@ 
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 import gdb
-import sys
 import xml.etree.ElementTree as ET
+from test_gdbstub import main, report
 
-initial_vlen = 0
-failcount = 0
 
-def report(cond, msg):
-    "Report success/fail of test."
-    if cond:
-        print("PASS: %s" % (msg))
-    else:
-        print("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
+initial_vlen = 0
 
 
 def fetch_xml_regmap():
@@ -75,6 +66,7 @@  def fetch_xml_regmap():
 
     return reg_map
 
+
 def get_register_by_regnum(reg_map, regnum):
     """
     Helper to find a register from the map via its XML regnum
@@ -84,6 +76,7 @@  def get_register_by_regnum(reg_map, regnum):
             return entry
     return None
 
+
 def crosscheck_remote_xml(reg_map):
     """
     Cross-check the list of remote-registers with the XML info.
@@ -144,6 +137,7 @@  def crosscheck_remote_xml(reg_map):
         elif "seen" not in x_reg:
             print(f"{x_reg} wasn't seen in remote-registers")
 
+
 def initial_register_read(reg_map):
     """
     Do an initial read of all registers that we know gdb cares about
@@ -214,27 +208,4 @@  def run_test():
         complete_and_diff(reg_map)
 
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-
-try:
-    run_test()
-except (gdb.error):
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
-
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/sha1.py b/tests/tcg/multiarch/gdbstub/sha1.py
index 416728415f9..1ce711a402c 100644
--- a/tests/tcg/multiarch/gdbstub/sha1.py
+++ b/tests/tcg/multiarch/gdbstub/sha1.py
@@ -7,19 +7,11 @@ 
 #
 
 import gdb
-import sys
+from test_gdbstub import main, report
+
 
 initial_vlen = 0
-failcount = 0
 
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print("PASS: %s" % (msg))
-    else:
-        print("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
 
 def check_break(sym_name):
     "Setup breakpoint, continue and check we stopped."
@@ -35,6 +27,7 @@  def check_break(sym_name):
 
     bp.delete()
 
+
 def run_test():
     "Run through the tests one by one"
 
@@ -57,28 +50,5 @@  def run_test():
     # finally check we don't barf inspecting registers
     gdb.execute("info registers")
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
-
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/test-proc-mappings.py b/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
index 04ec61d2197..564613fabf0 100644
--- a/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
+++ b/tests/tcg/multiarch/gdbstub/test-proc-mappings.py
@@ -3,20 +3,7 @@ 
 This runs as a sourced script (via -x, via run-test.py)."""
 from __future__ import print_function
 import gdb
-import sys
-
-
-n_failures = 0
-
-
-def report(cond, msg):
-    """Report success/fail of a test"""
-    if cond:
-        print("PASS: {}".format(msg))
-    else:
-        print("FAIL: {}".format(msg))
-        global n_failures
-        n_failures += 1
+from test_gdbstub import main, report
 
 
 def run_test():
@@ -37,26 +24,4 @@  def run_test():
     # report("/sha1" in mappings, "Found the test binary name in the mappings")
 
 
-def main():
-    """Prepare the environment and run through the tests"""
-    try:
-        inferior = gdb.selected_inferior()
-        print("ATTACHED: {}".format(inferior.architecture().name()))
-    except (gdb.error, AttributeError):
-        print("SKIPPING (not connected)")
-        exit(0)
-
-    if gdb.parse_and_eval('$pc') == 0:
-        print("SKIP: PC not set")
-        exit(0)
-
-    try:
-        # Run the actual tests
-        run_test()
-    except gdb.error:
-        report(False, "GDB Exception: {}".format(sys.exc_info()[0]))
-    print("All tests complete: %d failures" % n_failures)
-    exit(n_failures)
-
-
-main()
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py b/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
index 926fa962b77..00c26ab4a95 100644
--- a/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
+++ b/tests/tcg/multiarch/gdbstub/test-qxfer-auxv-read.py
@@ -6,18 +6,8 @@ 
 #
 
 import gdb
-import sys
+from test_gdbstub import main, report
 
-failcount = 0
-
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print ("PASS: %s" % (msg))
-    else:
-        print ("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
 
 def run_test():
     "Run through the tests one by one"
@@ -26,28 +16,5 @@  def run_test():
     report(isinstance(auxv, str), "Fetched auxv from inferior")
     report(auxv.find("sha1"), "Found test binary name in auxv")
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
 
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+main(run_test)
diff --git a/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py b/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
index e57d2a8db8b..4d6b6b9fbe7 100644
--- a/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
+++ b/tests/tcg/multiarch/gdbstub/test-thread-breakpoint.py
@@ -6,18 +6,8 @@ 
 #
 
 import gdb
-import sys
+from test_gdbstub import main, report
 
-failcount = 0
-
-def report(cond, msg):
-    "Report success/fail of test"
-    if cond:
-        print ("PASS: %s" % (msg))
-    else:
-        print ("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
 
 def run_test():
     "Run through the tests one by one"
@@ -29,28 +19,5 @@  def run_test():
     frame = gdb.selected_frame()
     report(str(frame.function()) == "thread1_func", "break @ %s"%frame)
 
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval('$pc') == 0:
-    print("SKIP: PC not set")
-    exit(0)
-
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print ("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
 
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+main(run_test)
diff --git a/tests/tcg/s390x/gdbstub/test-signals-s390x.py b/tests/tcg/s390x/gdbstub/test-signals-s390x.py
index ca2bbc0b03e..b6b7b39fc46 100644
--- a/tests/tcg/s390x/gdbstub/test-signals-s390x.py
+++ b/tests/tcg/s390x/gdbstub/test-signals-s390x.py
@@ -7,19 +7,7 @@ 
 #
 
 import gdb
-import sys
-
-failcount = 0
-
-
-def report(cond, msg):
-    """Report success/fail of test"""
-    if cond:
-        print("PASS: %s" % (msg))
-    else:
-        print("FAIL: %s" % (msg))
-        global failcount
-        failcount += 1
+from test_gdbstub import main, report
 
 
 def run_test():
@@ -42,31 +30,7 @@  def run_test():
     gdb.Breakpoint("_exit")
     gdb.execute("c")
     status = int(gdb.parse_and_eval("$r2"))
-    report(status == 0, "status == 0");
-
-
-#
-# This runs as the script it sourced (via -x, via run-test.py)
-#
-try:
-    inferior = gdb.selected_inferior()
-    arch = inferior.architecture()
-    print("ATTACHED: %s" % arch.name())
-except (gdb.error, AttributeError):
-    print("SKIPPING (not connected)", file=sys.stderr)
-    exit(0)
-
-if gdb.parse_and_eval("$pc") == 0:
-    print("SKIP: PC not set")
-    exit(0)
+    report(status == 0, "status == 0")
 
-try:
-    # Run the actual tests
-    run_test()
-except (gdb.error):
-    print("GDB Exception: %s" % (sys.exc_info()[0]))
-    failcount += 1
-    pass
 
-print("All tests complete: %d failures" % failcount)
-exit(failcount)
+main(run_test)
diff --git a/tests/tcg/s390x/gdbstub/test-svc.py b/tests/tcg/s390x/gdbstub/test-svc.py
index 804705fede9..17210b4e020 100644
--- a/tests/tcg/s390x/gdbstub/test-svc.py
+++ b/tests/tcg/s390x/gdbstub/test-svc.py
@@ -3,20 +3,7 @@ 
 This runs as a sourced script (via -x, via run-test.py)."""
 from __future__ import print_function
 import gdb
-import sys
-
-
-n_failures = 0
-
-
-def report(cond, msg):
-    """Report success/fail of a test"""
-    if cond:
-        print("PASS: {}".format(msg))
-    else:
-        print("FAIL: {}".format(msg))
-        global n_failures
-        n_failures += 1
+from test_gdbstub import main, report
 
 
 def run_test():
@@ -35,26 +22,4 @@  def run_test():
     gdb.execute("si")
 
 
-def main():
-    """Prepare the environment and run through the tests"""
-    try:
-        inferior = gdb.selected_inferior()
-        print("ATTACHED: {}".format(inferior.architecture().name()))
-    except (gdb.error, AttributeError):
-        print("SKIPPING (not connected)")
-        exit(0)
-
-    if gdb.parse_and_eval('$pc') == 0:
-        print("SKIP: PC not set")
-        exit(0)
-
-    try:
-        # Run the actual tests
-        run_test()
-    except gdb.error:
-        report(False, "GDB Exception: {}".format(sys.exc_info()[0]))
-    print("All tests complete: %d failures" % n_failures)
-    exit(n_failures)
-
-
-main()
+main(run_test)