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authorGravatar Romain Naour <romain.naour@smile.fr>2020-02-17 21:50:27 +0100
committerGravatar Yann E. MORIN <yann.morin.1998@free.fr>2020-04-13 21:51:12 +0200
commit575493c1869fb5f769fe23661d44d50ca6ea3809 (patch)
tree5dc9db49117210430a2227293c808a72c5014a44 /board/qemu
parent011206b2bffd509b29365bc1eaa761414ee13726 (diff)
downloadbuildroot-575493c1869fb5f769fe23661d44d50ca6ea3809.tar.gz
buildroot-575493c1869fb5f769fe23661d44d50ca6ea3809.tar.bz2
board/qemu: add post-image script for gitlab qemu testing
This commit add a post-image script to be used by each qemu board defconfig in order to generate start-qemu.sh in BINARIES_DIR. The start-qemu.sh script can be used by Buildroot user to start Qemu or by a gitlab CI. To find the correct qemu command line, we use the second post script argument which must contain "$(BR2_DEFCONFIG)" BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)" The post-image script expect something like "/path/to/qemu_aarch64_virt_defconfig" in BR2_DEFCONFIG. Doing a basename allow to retrieve the name of the defconfig file that should match on on the "tag" previously introduced in readme.txt files. For running in the CI, as well as running from a remote machine (e.g. on a remote build machine), it is better not to start in graphical mode, but only with the serial line attached to the terminal. The post-build script prepares two sets of arguments for each case, graphical or serial, and stores them in the start-qemu.sh script, which then decodes which to use, based on an argument on the command line (default is still graphical) sh4/sh4eb needs a special handling by adding "-serial stdio -display none"; others only require "-nographics". Some qemu command lines already contain "-serial stdio", but that does not play nicely with "-nographics", we remove that when going serial-only (although this might seem counter-intuitive). Finally, we ensure the script uses our qemu-system (if it was built). Signed-off-by: Romain Naour <romain.naour@smile.fr> [yann.morin.1998@free.fr: - drop the knowledge about gitlab-ci, replace with an argument to pass to start-qemu.sh - adapt the commit log accordingly ] Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Diffstat (limited to 'board/qemu')
-rwxr-xr-xboard/qemu/post-image.sh55
1 files changed, 55 insertions, 0 deletions
diff --git a/board/qemu/post-image.sh b/board/qemu/post-image.sh
new file mode 100755
index 0000000000..9a4d216274
--- /dev/null
+++ b/board/qemu/post-image.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+QEMU_BOARD_DIR="$(dirname $0)"
+DEFCONFIG_NAME="$(basename $2)"
+README_FILES="${QEMU_BOARD_DIR}/*/readme.txt"
+START_QEMU_SCRIPT="${BINARIES_DIR}/start-qemu.sh"
+
+if [[ "${DEFCONFIG_NAME}" =~ ^"qemu_*" ]]; then
+ # Not a Qemu defconfig, can't test.
+ exit 0
+fi
+
+# Search for "# qemu_*_defconfig" tag in all readme.txt files.
+# Qemu command line on multilines using back slash are accepted.
+QEMU_CMD_LINE=$(sed -r ':a; /\\$/N; s/\\\n//; s/\t/ /; ta; /# '${DEFCONFIG_NAME}'$/!d; s/#.*//' ${README_FILES})
+
+if [ -z "${QEMU_CMD_LINE}" ]; then
+ # No Qemu cmd line found, can't test.
+ exit 0
+fi
+
+# Replace output/images path by ${IMAGE_DIR} since the script
+# will be in the same directory as the kernel and the rootfs images.
+QEMU_CMD_LINE="${QEMU_CMD_LINE//output\/images/\${IMAGE_DIR\}}"
+
+# Remove -serial stdio if present, keep it as default args
+DEFAULT_ARGS="$(sed -r -e '/-serial stdio/!d; s/.*(-serial stdio).*/\1/' <<<"${QEMU_CMD_LINE}")"
+QEMU_CMD_LINE="${QEMU_CMD_LINE//-serial stdio/}"
+
+# Disable graphical output and redirect serial I/Os to console
+case ${DEFCONFIG_NAME} in
+ (qemu_sh4eb_r2d_defconfig|qemu_sh4_r2d_defconfig)
+ # Special case for SH4
+ SERIAL_ARGS="-serial stdio -display none"
+ ;;
+ (*)
+ SERIAL_ARGS="-nographic"
+ ;;
+esac
+
+cat <<-_EOF_ > "${START_QEMU_SCRIPT}"
+ #!/bin/sh
+ IMAGE_DIR="\${0%/*}/"
+
+ if [ "\${1}" = "serial-only" ]; then
+ EXTRA_ARGS='${SERIAL_ARGS}'
+ else
+ EXTRA_ARGS='${DEFAULT_ARGS}'
+ fi
+
+ export PATH="${HOST_DIR}/bin:\${PATH}"
+ exec ${QEMU_CMD_LINE} \${EXTRA_ARGS}
+_EOF_
+
+chmod +x "${START_QEMU_SCRIPT}"