tests/tcg: add linux-user semihosting smoke test for ARM
We already use semihosting for the system stuff so this is a simple smoke test to ensure we are working OK on linux-user. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20190913151845.12582-7-alex.bennee@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -21,4 +21,9 @@ run-fcvt: fcvt
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AARCH64_TESTS += pauth-1 pauth-2
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AARCH64_TESTS += pauth-1 pauth-2
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run-pauth-%: QEMU_OPTS += -cpu max
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run-pauth-%: QEMU_OPTS += -cpu max
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# Semihosting smoke test for linux-user
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AARCH64_TESTS += semihosting
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run-semihosting: semihosting
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$(call run-test,$<,$(QEMU) $< 2> $<.err, "$< on $(TARGET_NAME)")
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TESTS += $(AARCH64_TESTS)
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TESTS += $(AARCH64_TESTS)
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@ -27,6 +27,11 @@ run-fcvt: fcvt
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$(call run-test,fcvt,$(QEMU) $<,"$< on $(TARGET_NAME)")
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$(call run-test,fcvt,$(QEMU) $<,"$< on $(TARGET_NAME)")
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$(call diff-out,fcvt,$(ARM_SRC)/fcvt.ref)
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$(call diff-out,fcvt,$(ARM_SRC)/fcvt.ref)
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# Semihosting smoke test for linux-user
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ARM_TESTS += semihosting
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run-semihosting: semihosting
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$(call run-test,$<,$(QEMU) $< 2> $<.err, "$< on $(TARGET_NAME)")
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TESTS += $(ARM_TESTS)
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TESTS += $(ARM_TESTS)
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# On ARM Linux only supports 4k pages
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# On ARM Linux only supports 4k pages
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45
tests/tcg/arm/semihosting.c
Normal file
45
tests/tcg/arm/semihosting.c
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@ -0,0 +1,45 @@
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/*
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* linux-user semihosting checks
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*
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* Copyright (c) 2019
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* Written by Alex Bennée <alex.bennee@linaro.org>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include <stdint.h>
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#define SYS_WRITE0 0x04
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#define SYS_REPORTEXC 0x18
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void __semi_call(uintptr_t type, uintptr_t arg0)
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{
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#if defined(__arm__)
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register uintptr_t t asm("r0") = type;
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register uintptr_t a0 asm("r1") = arg0;
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asm("svc 0xab"
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: /* no return */
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: "r" (t), "r" (a0));
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#else
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register uintptr_t t asm("x0") = type;
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register uintptr_t a0 asm("x1") = arg0;
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asm("hlt 0xf000"
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: /* no return */
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: "r" (t), "r" (a0));
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#endif
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}
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int main(int argc, char *argv[argc])
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{
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#if defined(__arm__)
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uintptr_t exit_code = 0x20026;
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#else
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uintptr_t exit_block[2] = {0x20026, 0};
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uintptr_t exit_code = (uintptr_t) &exit_block;
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#endif
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__semi_call(SYS_WRITE0, (uintptr_t) "Hello World");
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__semi_call(SYS_REPORTEXC, exit_code);
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/* if we get here we failed */
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return -1;
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}
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