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selftests/nolibc: use file driver for QEMU serial

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For the test implementation of the SuperH architecture a second serial
serial port needs to be used. Unfortunately the currently used 'stdio'
driver does not support multiple serial ports at the same time.

Switch to the 'file' driver which does support multiple ports and is
sufficient for the nolibc-test usecase.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20250623-nolibc-sh-v2-2-0f5b4b303025@weissschuh.net
This commit is contained in:
Thomas Weißschuh 2025-06-23 23:15:53 +02:00
parent 439fa8756a
commit 358b2511d7
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/nolibc/Makefile.nolibc
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@ -337,12 +337,12 @@ kernel-standalone: initramfs
# run the tests after building the kernel
run: kernel initramfs.cpio
$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out"
$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
$(Q)$(REPORT) $(CURDIR)/run.out
# re-run the tests from an existing kernel
rerun:
$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial stdio $(QEMU_ARGS) > "$(CURDIR)/run.out"
$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
$(Q)$(REPORT) $(CURDIR)/run.out
# report with existing test log