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tests/tcg: add a dumb-as-bricks semihosting console test 

We don't run this during check-tcg as we would need to check stuff is
echoed back. However we can still build the binary so people can test
it manually.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Alex Bennée 2019-12-18 14:28:36 +00:00
parent 8de702cb67
commit 9c354591ca
2 changed files with 48 additions and 1 deletions
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11
tests/tcg/aarch64/Makefile.softmmu-target
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@ -31,7 +31,16 @@ LDFLAGS+=-static -nostdlib $(CRT_OBJS) $(MINILIB_OBJS) -lgcc
memory: CFLAGS+=-DCHECK_UNALIGNED=1
# Running
QEMU_OPTS+=-M virt -cpu max -display none -semihosting-config enable=on,target=native,chardev=output -kernel
QEMU_BASE_MACHINE=-M virt -cpu max -display none
QEMU_OPTS+=$(QEMU_BASE_MACHINE) -semihosting-config enable=on,target=native,chardev=output -kernel
# console test is manual only
QEMU_SEMIHOST=-chardev stdio,mux=on,id=stdio0 -semihosting-config enable=on,chardev=stdio0 -mon chardev=stdio0,mode=readline
run-semiconsole: QEMU_OPTS=$(QEMU_BASE_MACHINE) $(QEMU_SEMIHOST) -kernel
run-semiconsole: semiconsole
$(call skip-test, $<, "MANUAL ONLY")
run-plugin-semiconsole-with-%: semiconsole
$(call skip-test, $<, "MANUAL ONLY")
# Simple Record/Replay Test
.PHONY: memory-record

38
tests/tcg/aarch64/system/semiconsole.c Normal file
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@ -0,0 +1,38 @@
/*
* Semihosting Console Test
*
* Copyright (c) 2019 Linaro Ltd
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include <inttypes.h>
#include <minilib.h>
#define SYS_READC 0x7
uintptr_t __semi_call(uintptr_t type, uintptr_t arg0)
{
register uintptr_t t asm("x0") = type;
register uintptr_t a0 asm("x1") = arg0;
asm("hlt 0xf000"
: "=r" (t)
: "r" (t), "r" (a0));
return t;
}
int main(void)
{
char c;
ml_printf("Semihosting Console Test\n");
ml_printf("hit X to exit:");
do {
c = __semi_call(SYS_READC, 0);
__sys_outc(c);
} while (c != 'X');
return 0;
}