Ilya Leoshkevich
950936681f
Right now translator stops right *after* the end of a page, which breaks reporting of fault locations when the last instruction of a multi-insn translation block crosses a page boundary. An implementation, like the one arm and s390x have, would require an i386 length disassembler, which is burdensome to maintain. Another alternative would be to single-step at the end of a guest page, but this may come with a performance impact. Fix by snapshotting disassembly state and restoring it after we figure out we crossed a page boundary. This includes rolling back cc_op updates and emitted ops. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1143 Message-Id: <20220817150506.592862-4-iii@linux.ibm.com> [rth: Simplify end-of-insn cross-page checks.] Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
29 lines
770 B
SYSTEMD
29 lines
770 B
SYSTEMD
# -*- Mode: makefile -*-
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#
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# x86_64 tests - included from tests/tcg/Makefile.target
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#
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# Currently we only build test-x86_64 and test-i386-ssse3 from
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# $(SRC_PATH)/tests/tcg/i386/
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#
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include $(SRC_PATH)/tests/tcg/i386/Makefile.target
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ifeq ($(filter %-linux-user, $(TARGET)),$(TARGET))
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X86_64_TESTS += vsyscall
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X86_64_TESTS += noexec
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TESTS=$(MULTIARCH_TESTS) $(X86_64_TESTS) test-x86_64
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else
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TESTS=$(MULTIARCH_TESTS)
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endif
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run-test-i386-ssse3: QEMU_OPTS += -cpu max
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run-test-avx: QEMU_OPTS += -cpu max
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run-plugin-test-i386-ssse3-%: QEMU_OPTS += -cpu max
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test-x86_64: LDFLAGS+=-lm -lc
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test-x86_64: test-i386.c test-i386.h test-i386-shift.h test-i386-muldiv.h
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$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
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%: $(SRC_PATH)/tests/tcg/x86_64/%.c
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$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
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