jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
tests/tcg: add a multiarch linux-user gdb test
When the gdbstub code was converted to the new API we missed a few
snafus in the various guests. Add a simple gdb test script which can
be used on all our linux-user guests to check for obvious failures.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200430190122.4592-9-alex.bennee@linaro.org>
+98
-3
+2
-3
tests/tcg/aarch64/Makefile.target
+2
-3
tests/tcg/aarch64/Makefile.target
···
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ifneq ($(HAVE_GDB_BIN),)
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GDB_SCRIPT=$(SRC_PATH)/tests/guest-debug/run-test.py
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-
AARCH64_TESTS += gdbstub-sysregs gdbstub-sve-ioctls
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-
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.PHONY: gdbstub-sysregs gdbstub-sve-ioctls
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run-gdbstub-sysregs: sysregs
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$(call run-test, $@, $(GDB_SCRIPT) \
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--gdb $(HAVE_GDB_BIN) \
···
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--qemu $(QEMU) --qargs "$(QEMU_OPTS)" \
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--bin $< --test $(AARCH64_SRC)/gdbstub/test-sve-ioctl.py, \
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"basic gdbstub SVE ZLEN support")
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+
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EXTRA_RUNS += run-gdbstub-sysregs run-gdbstub-sve-ioctls
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endif
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endif
+1
tests/tcg/cris/Makefile.target
+1
tests/tcg/cris/Makefile.target
+14
tests/tcg/multiarch/Makefile.target
+14
tests/tcg/multiarch/Makefile.target
···
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$(call run-test, test-mmap-$*, $(QEMU) -p $* $<,\
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"$< ($* byte pages) on $(TARGET_NAME)")
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ifneq ($(HAVE_GDB_BIN),)
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GDB_SCRIPT=$(SRC_PATH)/tests/guest-debug/run-test.py
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run-gdbstub-sha1: sha1
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$(call run-test, $@, $(GDB_SCRIPT) \
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--gdb $(HAVE_GDB_BIN) \
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--qemu $(QEMU) --qargs "$(QEMU_OPTS)" \
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--bin $< --test $(MULTIARCH_SRC)/gdbstub/sha1.py, \
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"basic gdbstub support")
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EXTRA_RUNS += run-gdbstub-sha1
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endif
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# Update TESTS
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TESTS += $(MULTIARCH_TESTS)
+81
tests/tcg/multiarch/gdbstub/sha1.py
+81
tests/tcg/multiarch/gdbstub/sha1.py
···
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from __future__ import print_function
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#
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# A very simple smoke test for debugging the SHA1 userspace test on
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# each target.
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#
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# This is launched via tests/guest-debug/run-test.py
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#
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import gdb
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import sys
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initial_vlen = 0
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failcount = 0
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+
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def report(cond, msg):
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"Report success/fail of test"
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if cond:
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print("PASS: %s" % (msg))
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else:
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print("FAIL: %s" % (msg))
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global failcount
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failcount += 1
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def check_break(sym_name):
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"Setup breakpoint, continue and check we stopped."
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sym, ok = gdb.lookup_symbol(sym_name)
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bp = gdb.Breakpoint(sym_name)
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gdb.execute("c")
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# hopefully we came back
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end_pc = gdb.parse_and_eval('$pc')
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report(bp.hit_count == 1,
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"break @ %s (%s %d hits)" % (end_pc, sym.value(), bp.hit_count))
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bp.delete()
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def run_test():
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"Run through the tests one by one"
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check_break("SHA1Init")
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# check step and inspect values
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gdb.execute("next")
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val_ctx = gdb.parse_and_eval("context->state[0]")
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exp_ctx = 0x67452301
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report(int(val_ctx) == exp_ctx, "context->state[0] == %x" % exp_ctx);
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gdb.execute("next")
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val_ctx = gdb.parse_and_eval("context->state[1]")
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exp_ctx = 0xEFCDAB89
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report(int(val_ctx) == exp_ctx, "context->state[1] == %x" % exp_ctx);
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# finally check we don't barf inspecting registers
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gdb.execute("info registers")
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#
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# This runs as the script it sourced (via -x, via run-test.py)
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#
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try:
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inferior = gdb.selected_inferior()
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arch = inferior.architecture()
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print("ATTACHED: %s" % arch.name())
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except (gdb.error, AttributeError):
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print("SKIPPING (not connected)", file=sys.stderr)
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exit(0)
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try:
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# These are not very useful in scripts
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gdb.execute("set pagination off")
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gdb.execute("set confirm off")
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# Run the actual tests
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run_test()
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except (gdb.error):
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print ("GDB Exception: %s" % (sys.exc_info()[0]))
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failcount += 1
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pass
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print("All tests complete: %d failures" % failcount)
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exit(failcount)