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Mon, 16 Mar 2020 10:28:46 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v1 25/28] tests/tcg/aarch64: add test-sve-ioctl guest-debug test Date: Mon, 16 Mar 2020 17:21:52 +0000 Message-Id: <20200316172155.971-26-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200316172155.971-1-alex.bennee@linaro.org> References: <20200316172155.971-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::443 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-arm@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) This test exercises the gdbstub while runing the sve-iotcl test. I haven't plubmed it into make system as we need a way of verifying if gdb has the right support for SVE. Signed-off-by: Alex Benn=C3=A9e --- v4 - interrogate ZCR_EL1 directly as no longer have vg v5 - plumb in - skip if fails to connect v6 - fix for vg v7 - change to vg size, also better trap failure in zreg access --- tests/tcg/aarch64/Makefile.target | 11 ++- tests/tcg/aarch64/gdbstub/test-sve-ioctl.py | 82 +++++++++++++++++++++ 2 files changed, 91 insertions(+), 2 deletions(-) create mode 100644 tests/tcg/aarch64/gdbstub/test-sve-ioctl.py diff --git a/tests/tcg/aarch64/Makefile.target b/tests/tcg/aarch64/Makefile= .target index c879932ff6c..d99b2a9eced 100644 --- a/tests/tcg/aarch64/Makefile.target +++ b/tests/tcg/aarch64/Makefile.target @@ -54,15 +54,22 @@ sve-ioctls: CFLAGS+=3D-march=3Darmv8.1-a+sve ifneq ($(HAVE_GDB_BIN),) GDB_SCRIPT=3D$(SRC_PATH)/tests/guest-debug/run-test.py =20 -AARCH64_TESTS +=3D gdbstub-sysregs +AARCH64_TESTS +=3D gdbstub-sysregs gdbstub-sve-ioctls =20 -.PHONY: gdbstub-sysregs +.PHONY: gdbstub-sysregs gdbstub-sve-ioctls run-gdbstub-sysregs: sysregs $(call run-test, $@, $(GDB_SCRIPT) \ --gdb $(HAVE_GDB_BIN) \ --qemu $(QEMU) --qargs "$(QEMU_OPTS)" \ --bin $< --test $(AARCH64_SRC)/gdbstub/test-sve.py, \ "basic gdbstub SVE support") + +run-gdbstub-sve-ioctls: sve-ioctls + $(call run-test, $@, $(GDB_SCRIPT) \ + --gdb $(HAVE_GDB_BIN) \ + --qemu $(QEMU) --qargs "$(QEMU_OPTS)" \ + --bin $< --test $(AARCH64_SRC)/gdbstub/test-sve-ioctl.py, \ + "basic gdbstub SVE ZLEN support") endif =20 endif diff --git a/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py b/tests/tcg/aarch6= 4/gdbstub/test-sve-ioctl.py new file mode 100644 index 00000000000..5824abe09ac --- /dev/null +++ b/tests/tcg/aarch64/gdbstub/test-sve-ioctl.py @@ -0,0 +1,82 @@ +from __future__ import print_function +# +# Test the SVE ZReg reports the right amount of data. It uses the +# sve-ioctl test and examines the register data each time the +# __sve_ld_done breakpoint is hit. +# +# This is launched via tests/guest-debug/run-test.py +# + +import gdb +import sys + +initial_vlen =3D 0 +failcount =3D 0 + +def report(cond, msg): + "Report success/fail of test" + if cond: + print ("PASS: %s" % (msg)) + else: + print ("FAIL: %s" % (msg)) + global failcount + failcount +=3D 1 + +class TestBreakpoint(gdb.Breakpoint): + def __init__(self, sym_name=3D"__sve_ld_done"): + super(TestBreakpoint, self).__init__(sym_name) + # self.sym, ok =3D gdb.lookup_symbol(sym_name) + + def stop(self): + val_i =3D gdb.parse_and_eval('i') + global initial_vlen + try: + for i in range(0, int(val_i)): + val_z =3D gdb.parse_and_eval("$z0.b.u[%d]" % i) + report(int(val_z) =3D=3D i, "z0.b.u[%d] =3D=3D %d" % (i, i= )) + for i in range(i + 1, initial_vlen): + val_z =3D gdb.parse_and_eval("$z0.b.u[%d]" % i) + report(int(val_z) =3D=3D 0, "z0.b.u[%d] =3D=3D 0" % (i)) + except gdb.error: + report(False, "checking zregs (out of range)") + + +def run_test(): + "Run through the tests one by one" + + print ("Setup breakpoint") + bp =3D TestBreakpoint() + + global initial_vlen + vg =3D gdb.parse_and_eval("$vg") + initial_vlen =3D int(vg) * 8 + + gdb.execute("c") + +# +# This runs as the script it sourced (via -x, via run-test.py) +# +try: + inferior =3D gdb.selected_inferior() + arch =3D inferior.architecture() + report(arch.name() =3D=3D "aarch64", "connected to aarch64") +except (gdb.error, AttributeError): + print("SKIPPING (not connected)", file=3Dsys.stderr) + exit(0) + +try: + # These are not very useful in scripts + gdb.execute("set pagination off") + gdb.execute("set confirm off") + + # Run the actual tests + run_test() +except: + print ("GDB Exception: %s" % (sys.exc_info()[0])) + failcount +=3D 1 + import code + code.InteractiveConsole(locals=3Dglobals()).interact() + raise + +print("All tests complete: %d failures" % failcount) +exit(failcount) --=20 2.20.1