From mboxrd@z Thu Jan 1 00:00:00 1970 From: Waldemar Brodkorb Date: Sun, 8 May 2016 11:03:45 +0200 Subject: [Buildroot] [PATCH 4/4] board: add blackfin gdb simulator support Message-ID: <20160508090345.GA32614@waldemar-brodkorb.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net With this config you can bootup a Linux kernel in GDB simulator and test Blackfin kernel and userland. Signed-off-by: Waldemar Brodkorb --- board/gdb/bfin-bf512/linux-4.4.config | 87 +++++++++++++++++++++++++++++++++++ board/gdb/bfin-bf512/readme.txt | 11 +++++ board/gdb/post-build.sh | 4 ++ configs/gdb_bfin_bf512_defconfig | 37 +++++++++++++++ system/device_table_dev.txt | 1 + 5 files changed, 140 insertions(+) create mode 100644 board/gdb/bfin-bf512/linux-4.4.config create mode 100644 board/gdb/bfin-bf512/readme.txt create mode 100755 board/gdb/post-build.sh create mode 100644 configs/gdb_bfin_bf512_defconfig diff --git a/board/gdb/bfin-bf512/linux-4.4.config b/board/gdb/bfin-bf512/linux-4.4.config new file mode 100644 index 0000000..bc2a907 --- /dev/null +++ b/board/gdb/bfin-bf512/linux-4.4.config @@ -0,0 +1,87 @@ +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SYSVIPC=y +CONFIG_BLK_DEV_INITRD=y +# CONFIG_RD_GZIP is not set +# CONFIG_RD_BZIP2 is not set +# CONFIG_RD_LZMA is not set +# CONFIG_RD_XZ is not set +# CONFIG_RD_LZO is not set +# CONFIG_RD_LZ4 is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +# CONFIG_UID16 is not set +# CONFIG_SGETMASK_SYSCALL is not set +# CONFIG_SYSFS_SYSCALL is not set +# CONFIG_KALLSYMS is not set +# CONFIG_BUG is not set +# CONFIG_BASE_FULL is not set +# CONFIG_ADVISE_SYSCALLS is not set +# CONFIG_MEMBARRIER is not set +CONFIG_EMBEDDED=y +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_SLUB_DEBUG is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_MODULES=y +# CONFIG_BLOCK is not set +CONFIG_BF512=y +# CONFIG_SET_GENERIC_CLOCKEVENTS is not set +# CONFIG_I_ENTRY_L1 is not set +# CONFIG_EXCPT_IRQ_SYSC_L1 is not set +# CONFIG_DO_IRQ_L1 is not set +# CONFIG_CORE_TIMER_IRQ_L1 is not set +# CONFIG_IDLE_L1 is not set +# CONFIG_SCHEDULE_L1 is not set +# CONFIG_ARITHMETIC_OPS_L1 is not set +# CONFIG_ACCESS_OK_L1 is not set +# CONFIG_MEMSET_L1 is not set +# CONFIG_MEMCPY_L1 is not set +# CONFIG_STRCMP_L1 is not set +# CONFIG_STRNCMP_L1 is not set +# CONFIG_STRCPY_L1 is not set +# CONFIG_STRNCPY_L1 is not set +# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set +# CONFIG_CACHELINE_ALIGNED_L1 is not set +# CONFIG_DCACHE_FLUSH_L1 is not set +# CONFIG_APP_STACK_L1 is not set +# CONFIG_BFIN_INS_LOWOVERHEAD is not set +# CONFIG_BFIN_ICACHE is not set +# CONFIG_BFIN_DCACHE is not set +# CONFIG_C_AMCKEN is not set +CONFIG_BINFMT_ELF_FDPIC=y +CONFIG_BINFMT_FLAT=y +# CONFIG_COREDUMP is not set +# CONFIG_SUSPEND is not set +# CONFIG_UEVENT_HELPER is not set +# CONFIG_STANDALONE is not set +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FW_LOADER is not set +# CONFIG_ALLOW_DEV_COREDUMP is not set +# CONFIG_INPUT is not set +# CONFIG_SERIO is not set +# CONFIG_VT is not set +# CONFIG_LEGACY_PTYS is not set +CONFIG_SERIAL_BFIN=y +CONFIG_SERIAL_BFIN_CONSOLE=y +CONFIG_SERIAL_BFIN_UART0=y +CONFIG_SERIAL_BFIN_UART1=y +# CONFIG_BFIN_OTP is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +# CONFIG_USB_SUPPORT is not set +# CONFIG_MANDATORY_FILE_LOCKING is not set +# CONFIG_DNOTIFY is not set +# CONFIG_MISC_FILESYSTEMS is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="utf-8" +CONFIG_PRINTK_TIME=y +# CONFIG_ENABLE_WARN_DEPRECATED is not set +# CONFIG_ENABLE_MUST_CHECK is not set +# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set +CONFIG_MAGIC_SYSRQ=y +# CONFIG_SCHED_DEBUG is not set +# CONFIG_FTRACE is not set +# CONFIG_DEBUG_VERBOSE is not set +# CONFIG_DEBUG_HUNT_FOR_ZERO is not set +# CONFIG_DEBUG_BFIN_HWTRACE_ON is not set +CONFIG_EARLY_PRINTK=y +# CONFIG_ACCESS_CHECK is not set +# CONFIG_CRC32 is not set diff --git a/board/gdb/bfin-bf512/readme.txt b/board/gdb/bfin-bf512/readme.txt new file mode 100644 index 0000000..a56b5bc --- /dev/null +++ b/board/gdb/bfin-bf512/readme.txt @@ -0,0 +1,11 @@ +Run the simulation with GDB for FDPIC: + + ./output/host/usr/bin/bfin-buildroot-linux-uclibc-run --env operating --model bf512 output/images/vmlinux + +Run the simulation with GDB for FLAT: + + ./output/host/usr/bin/bfin-buildroot-uclinux-uclibc-run --env operating --model bf512 output/images/vmlinux + +The login prompt will appear in the terminal that started GDB. + +Tested with GDB 7.9 diff --git a/board/gdb/post-build.sh b/board/gdb/post-build.sh new file mode 100755 index 0000000..8933d50 --- /dev/null +++ b/board/gdb/post-build.sh @@ -0,0 +1,4 @@ +#!/bin/sh +# no simulated network devices at the moment +rm -f ${TARGET_DIR}/etc/init.d/S40network +rm -rf ${TARGET_DIR}/etc/network/ diff --git a/configs/gdb_bfin_bf512_defconfig b/configs/gdb_bfin_bf512_defconfig new file mode 100644 index 0000000..582350e --- /dev/null +++ b/configs/gdb_bfin_bf512_defconfig @@ -0,0 +1,37 @@ +# Architecture +BR2_bfin=y +BR2_bf512=y + +# Filesystem +BR2_TARGET_ROOTFS_INITRAMFS=y +# BR2_TARGET_ROOTFS_TAR is not set + +BR2_ROOTFS_POST_BUILD_SCRIPT="board/gdb/post-build.sh" + +# Linux headers same as kernel, a 4.4 series +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_4=y + +# Kernel +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_VERSION=y +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.4.5" +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/gdb/bfin-bf512/linux-4.4.config" +BR2_LINUX_KERNEL_VMLINUX=y + +# Serial port config +BR2_TARGET_GENERIC_GETTY=y +BR2_TARGET_GENERIC_GETTY_PORT="ttyBF0" + +# use minimal busybox with hush +BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config" + +# ldconfig does not build +# BR2_UCLIBC_INSTALL_UTILS is not set + +# compile gdb sim +BR2_PACKAGE_HOST_GDB=y +# BR2_PACKAGE_HOST_GDB_TUI is not set +# BR2_PACKAGE_HOST_GDB_PYTHON is not set +BR2_PACKAGE_HOST_GDB_SIM=y + diff --git a/system/device_table_dev.txt b/system/device_table_dev.txt index c4257a6..4f0b637 100644 --- a/system/device_table_dev.txt +++ b/system/device_table_dev.txt @@ -31,6 +31,7 @@ /dev/ttyAM c 666 0 0 204 16 0 1 3 /dev/ttyCPM c 666 0 0 204 46 0 1 4 /dev/ttyAMA c 666 0 0 204 64 0 1 4 +/dev/ttyBF c 666 0 0 204 64 0 1 2 /dev/ttySAC c 666 0 0 204 64 0 1 4 /dev/ttySC c 666 0 0 204 8 0 1 8 /dev/ttyPSC c 666 0 0 204 148 0 1 4 -- 2.1.4