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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>
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Original file line number | Diff line number | Diff line change |
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from __future__ import print_function | ||
# | ||
# A very simple smoke test for debugging the SHA1 userspace test on | ||
# each target. | ||
# | ||
# This is launched via tests/guest-debug/run-test.py | ||
# | ||
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import gdb | ||
import sys | ||
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initial_vlen = 0 | ||
failcount = 0 | ||
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def report(cond, msg): | ||
"Report success/fail of test" | ||
if cond: | ||
print("PASS: %s" % (msg)) | ||
else: | ||
print("FAIL: %s" % (msg)) | ||
global failcount | ||
failcount += 1 | ||
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def check_break(sym_name): | ||
"Setup breakpoint, continue and check we stopped." | ||
sym, ok = gdb.lookup_symbol(sym_name) | ||
bp = gdb.Breakpoint(sym_name) | ||
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gdb.execute("c") | ||
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# hopefully we came back | ||
end_pc = gdb.parse_and_eval('$pc') | ||
report(bp.hit_count == 1, | ||
"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(): | ||
"Run through the tests one by one" | ||
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check_break("SHA1Init") | ||
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# check step and inspect values | ||
gdb.execute("next") | ||
val_ctx = gdb.parse_and_eval("context->state[0]") | ||
exp_ctx = 0x67452301 | ||
report(int(val_ctx) == exp_ctx, "context->state[0] == %x" % exp_ctx); | ||
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gdb.execute("next") | ||
val_ctx = gdb.parse_and_eval("context->state[1]") | ||
exp_ctx = 0xEFCDAB89 | ||
report(int(val_ctx) == exp_ctx, "context->state[1] == %x" % exp_ctx); | ||
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# finally check we don't barf inspecting registers | ||
gdb.execute("info registers") | ||
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# | ||
# 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) | ||
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try: | ||
# These are not very useful in scripts | ||
gdb.execute("set pagination off") | ||
gdb.execute("set confirm off") | ||
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# Run the actual tests | ||
run_test() | ||
except (gdb.error): | ||
print ("GDB Exception: %s" % (sys.exc_info()[0])) | ||
failcount += 1 | ||
pass | ||
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print("All tests complete: %d failures" % failcount) | ||
exit(failcount) |