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Buildroot s390 image #26

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nickdesaulniers wants to merge 2 commits into from
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Buildroot s390 image #26

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0107669
add s390 image
nickdesaulniers Oct 16, 2020
5f53274
Add boot-qemu.sh support for s390
nickdesaulniers Oct 16, 2020
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8 changes: 7 additions & 1 deletion boot-qemu.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ function parse_parameters() {
-a | --arch | --architecture)
shift
case ${1} in
arm32_v5 | arm32_v6 | arm32_v7 | arm64 | mips | mipsel | ppc32 | ppc64 | ppc64le | riscv | x86 | x86_64) ARCH=${1} ;;
arm32_v5 | arm32_v6 | arm32_v7 | arm64 | mips | mipsel | ppc32 | ppc64 | ppc64le | riscv | s390 | x86 | x86_64) ARCH=${1} ;;
*) die "Invalid --arch value '${1}'" ;;
esac
;;
Expand Down Expand Up @@ -203,6 +203,12 @@ function setup_qemu_args() {
QEMU=(qemu-system-riscv64)
;;

s390)
KIMAGE=bzImage
QEMU_ARCH_ARGS=(-M s390-ccw-virtio)
QEMU=(qemu-system-s390x)
;;

x86 | x86_64)
KIMAGE=bzImage
APPEND_STRING+="console=ttyS0 "
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2 changes: 1 addition & 1 deletion buildroot/rebuild.sh
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Expand Up @@ -32,7 +32,7 @@ CONFIGS=()
while ((${#})); do
case ${1} in
all) for CONFIG in *.config; do CONFIGS+=("../${CONFIG}"); done ;;
arm64 | arm | mips | mipsel | ppc32 | ppc64 | ppc64le | riscv | x86 | x86_64) CONFIGS+=("../${1}.config") ;;
arm64 | arm | mips | mipsel | ppc32 | ppc64 | ppc64le | riscv | s390 | x86 | x86_64) CONFIGS+=("../${1}.config") ;;
*) die "Unknown parameter '${1}', exiting!" ;;
esac
shift
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11 changes: 11 additions & 0 deletions buildroot/s390.config
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@@ -0,0 +1,11 @@
BR2_s390x=y
BR2_OPTIMIZE_3=y
BR2_KERNEL_HEADERS_4_4=y
BR2_GCC_VERSION_8_X=y
BR2_TARGET_GENERIC_ROOT_PASSWD="root"
BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"

@nickdesaulniers nickdesaulniers Oct 16, 2020

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is this port correct? I copied this from a different arch's config, so I suppose it's likely incorrect.

@eaibmz eaibmz Oct 19, 2020

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I would suggest using configs/qemu_s390x_defconfig as a template or are there reasons for not doing it ?

BR2_ROOTFS_OVERLAY="../overlay-poweroff"
BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
BR2_PACKAGE_BASH=y
BR2_TARGET_ROOTFS_CPIO=y
# BR2_TARGET_ROOTFS_TAR is not set
Binary file added images/s390/rootfs.cpio.zst
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