[1/1] arch/riscv: RISC-V 32-bit NO MMU support

Message ID	20221120153312.771411-1-ustcymgu@gmail.com
State	Superseded
Headers	show Return-Path: <buildroot-bounces@buildroot.org> From: Yimin Gu <ustcymgu@gmail.com> To: buildroot@buildroot.org Date: Mon, 21 Nov 2022 00:33:12 +0900 Message-Id: <20221120153312.771411-1-ustcymgu@gmail.com> In-Reply-To: <Y3ncNLHK8OQhOo7d@waldemar-brodkorb.de> References: <Y3ncNLHK8OQhOo7d@waldemar-brodkorb.de> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FPRKdXnnUAQwS/Qid9tjfQsN67Pf/Bn7jbh+eGpSyxs=; b=bB7hHbmvGV5SPlU1dfh3HkkF97a4ZDB4K57sULMPRfE5DwOH9SAP5bDSDCMF5on/2v 7x+8K8aNWBHJUPev7sfQl6w36DJt27LbvCtAzjABa1/WaLE4+Uu3U8/GWa6nAzNXcTDS kr7szDqZDYtdv6/spu0sNy2BnyHxm0SadS844Vh9gPYpAaZBnwp1CRMK1Njy0o9tRl+G X+Ywh298NviLyTzADYKiW2nE6Sxr2h4UaA1+Rq5/q8e85ug52vrH7MYxU5KkNYnXwHaM lkC6YgCi6939shavzoQgy+q1cet7Lmu9jo6zBIKvIbjz4qAquTvTf/O3/c4Jh5hI0/KX WcEA== X-Mailman-Original-Authentication-Results: smtp4.osuosl.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=bB7hHbmv Subject: [Buildroot] [PATCH 1/1] arch/riscv: RISC-V 32-bit NO MMU support Precedence: list Cc: Yimin Gu <ustcymgu@gmail.com>, Romain Naour <romain.naour@gmail.com>, Mark Corbin <mark@dibsco.co.uk> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: buildroot-bounces@buildroot.org Sender: "buildroot" <buildroot-bounces@buildroot.org>
Series	[1/1] arch/riscv: RISC-V 32-bit NO MMU support \| expand [1/1] arch/riscv: RISC-V 32-bit NO MMU support

diff --git a/arch/Config.in.riscv b/arch/Config.in.riscv index b5e84389e0..c79cf9b410 100644 --- a/arch/Config.in.riscv +++ b/arch/Config.in.riscv @@ -71,7 +71,6 @@ choice config BR2_RISCV_32 bool "32-bit" - select BR2_USE_MMU config BR2_RISCV_64 bool "64-bit" @@ -82,7 +81,6 @@ endchoice config BR2_RISCV_USE_MMU bool "MMU support" default y - depends on BR2_RISCV_64 select BR2_USE_MMU help Enable this option if your RISC-V core has a MMU (Memory diff --git a/board/qemu/riscv32-virt/nommu/patches/linux-headers b/board/qemu/riscv32-virt/nommu/patches/linux-headers new file mode 120000 index 0000000000..ce5e2c77b2 --- /dev/null +++ b/board/qemu/riscv32-virt/nommu/patches/linux-headers @@ -0,0 +1 @@ +linux/ \ No newline at end of file diff --git a/board/qemu/riscv32-virt/nommu/patches/linux/5.19/0001-Experimental-RISC-V-32-bit-No-MMU-support.patch b/board/qemu/riscv32-virt/nommu/patches/linux/5.19/0001-Experimental-RISC-V-32-bit-No-MMU-support.patch new file mode 100644 index 0000000000..595d73c981 --- /dev/null +++ b/board/qemu/riscv32-virt/nommu/patches/linux/5.19/0001-Experimental-RISC-V-32-bit-No-MMU-support.patch @@ -0,0 +1,1355 @@ +From 81a03a2cb16a2e058912e51aa6888feba0cc74a4 Mon Sep 17 00:00:00 2001 +From: Yimin Gu <ustcymgu@gmail.com> +Date: Thu, 17 Nov 2022 21:30:07 +0900 +Subject: [PATCH] Experimental RISC-V 32-bit No MMU support + +Currently the kernel doesn't support 32-bit RISC-V without MMU, but +this configuration can work with relatively minor changes on +toolchains, and might worth to have official support. + +To comply with current uclibc, macros __ARCH_WANT_STAT64 and +__ARCH_WANT_TIME32_SYSCALLS are defined. CONFIG_COMPAT_32BIT_TIME also +has to be turned on. + +Since 32-bit RISC-V no MMU devices are probably FPGA-based softcores, +only the mininum required instruction set options are turned on. FPU +and compressed instructions are not used. + +Signed-off-by: Yimin Gu <ustcymgu@gmail.com> +--- + arch/riscv/Kconfig | 5 +- + arch/riscv/configs/nommu_rv32_virt_defconfig | 1278 ++++++++++++++++++ + arch/riscv/include/uapi/asm/unistd.h | 7 +- + 3 files changed, 1286 insertions(+), 4 deletions(-) + create mode 100644 arch/riscv/configs/nommu_rv32_virt_defconfig + +diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig +index fcbb81feb..fc48b458a 100644 +--- a/arch/riscv/Kconfig ++++ b/arch/riscv/Kconfig +@@ -162,8 +162,8 @@ config MMU + + config PAGE_OFFSET + hex +- default 0xC0000000 if 32BIT +- default 0x80000000 if 64BIT && !MMU ++ default 0xC0000000 if 32BIT && MMU ++ default 0x80000000 if !MMU + default 0xff60000000000000 if 64BIT + + config KASAN_SHADOW_OFFSET +@@ -237,7 +237,6 @@ config ARCH_RV32I + select GENERIC_LIB_ASHRDI3 + select GENERIC_LIB_LSHRDI3 + select GENERIC_LIB_UCMPDI2 +- select MMU + + config ARCH_RV64I + bool "RV64I" +diff --git a/arch/riscv/configs/nommu_rv32_virt_defconfig b/arch/riscv/configs/nommu_rv32_virt_defconfig +new file mode 100644 +index 000000000..377dc28f5 +--- /dev/null ++++ b/arch/riscv/configs/nommu_rv32_virt_defconfig +@@ -0,0 +1,1278 @@ ++# ++# Automatically generated file; DO NOT EDIT. ++# Linux/riscv 5.18.0 Kernel Configuration ++# ++CONFIG_CC_VERSION_TEXT="gcc (GCC) 12.1.0" ++CONFIG_CC_IS_GCC=y ++CONFIG_GCC_VERSION=120100 ++CONFIG_CLANG_VERSION=0 ++CONFIG_AS_IS_GNU=y ++CONFIG_AS_VERSION=23800 ++CONFIG_LD_IS_BFD=y ++CONFIG_LD_VERSION=23800 ++CONFIG_LLD_VERSION=0 ++CONFIG_CC_CAN_LINK=y ++CONFIG_CC_CAN_LINK_STATIC=y ++CONFIG_CC_HAS_ASM_GOTO=y ++CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y ++CONFIG_CC_HAS_ASM_INLINE=y ++CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y ++CONFIG_PAHOLE_VERSION=123 ++CONFIG_IRQ_WORK=y ++CONFIG_THREAD_INFO_IN_TASK=y ++ ++# ++# General setup ++# ++CONFIG_INIT_ENV_ARG_LIMIT=32 ++# CONFIG_COMPILE_TEST is not set ++# CONFIG_WERROR is not set ++CONFIG_LOCALVERSION="" ++CONFIG_LOCALVERSION_AUTO=y ++CONFIG_BUILD_SALT="" ++CONFIG_DEFAULT_INIT="" ++CONFIG_DEFAULT_HOSTNAME="(none)" ++# CONFIG_SYSVIPC is not set ++# CONFIG_WATCH_QUEUE is not set ++# CONFIG_USELIB is not set ++CONFIG_HAVE_ARCH_AUDITSYSCALL=y ++ ++# ++# IRQ subsystem ++# ++CONFIG_GENERIC_IRQ_SHOW=y ++CONFIG_GENERIC_IRQ_SHOW_LEVEL=y ++CONFIG_IRQ_DOMAIN=y ++CONFIG_IRQ_DOMAIN_HIERARCHY=y ++CONFIG_IRQ_FORCED_THREADING=y ++CONFIG_SPARSE_IRQ=y ++# end of IRQ subsystem ++ ++CONFIG_GENERIC_IRQ_MULTI_HANDLER=y ++CONFIG_ARCH_CLOCKSOURCE_INIT=y ++CONFIG_GENERIC_CLOCKEVENTS=y ++CONFIG_ARCH_HAS_TICK_BROADCAST=y ++CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y ++ ++# ++# Timers subsystem ++# ++CONFIG_HZ_PERIODIC=y ++# CONFIG_NO_HZ_IDLE is not set ++# CONFIG_NO_HZ is not set ++# CONFIG_HIGH_RES_TIMERS is not set ++# end of Timers subsystem ++ ++# ++# BPF subsystem ++# ++# CONFIG_BPF_SYSCALL is not set ++# end of BPF subsystem ++ ++CONFIG_PREEMPT_NONE_BUILD=y ++CONFIG_PREEMPT_NONE=y ++# CONFIG_PREEMPT_VOLUNTARY is not set ++# CONFIG_PREEMPT is not set ++ ++# ++# CPU/Task time and stats accounting ++# ++CONFIG_TICK_CPU_ACCOUNTING=y ++# CONFIG_IRQ_TIME_ACCOUNTING is not set ++# CONFIG_BSD_PROCESS_ACCT is not set ++# CONFIG_PSI is not set ++# end of CPU/Task time and stats accounting ++ ++# CONFIG_CPU_ISOLATION is not set ++ ++# ++# RCU Subsystem ++# ++CONFIG_TREE_RCU=y ++# CONFIG_RCU_EXPERT is not set ++CONFIG_SRCU=y ++CONFIG_TREE_SRCU=y ++CONFIG_RCU_STALL_COMMON=y ++CONFIG_RCU_NEED_SEGCBLIST=y ++# end of RCU Subsystem ++ ++# CONFIG_IKCONFIG is not set ++# CONFIG_IKHEADERS is not set ++CONFIG_LOG_BUF_SHIFT=16 ++CONFIG_LOG_CPU_MAX_BUF_SHIFT=12 ++CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=12 ++CONFIG_GENERIC_SCHED_CLOCK=y ++ ++# ++# Scheduler features ++# ++# end of Scheduler features ++ ++CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5" ++# CONFIG_CGROUPS is not set ++# CONFIG_NAMESPACES is not set ++# CONFIG_CHECKPOINT_RESTORE is not set ++# CONFIG_SCHED_AUTOGROUP is not set ++# CONFIG_SYSFS_DEPRECATED is not set ++# CONFIG_RELAY is not set ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_INITRAMFS_SOURCE="" ++# CONFIG_INITRAMFS_FORCE is not set ++CONFIG_RD_GZIP=y ++# 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_RD_ZSTD=y ++# CONFIG_BOOT_CONFIG is not set ++# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set ++CONFIG_CC_OPTIMIZE_FOR_SIZE=y ++CONFIG_SYSCTL=y ++CONFIG_SYSCTL_EXCEPTION_TRACE=y ++CONFIG_EXPERT=y ++CONFIG_MULTIUSER=y ++# CONFIG_SGETMASK_SYSCALL is not set ++# CONFIG_SYSFS_SYSCALL is not set ++# CONFIG_FHANDLE is not set ++CONFIG_POSIX_TIMERS=y ++CONFIG_PRINTK=y ++CONFIG_BUG=y ++# CONFIG_BASE_FULL is not set ++CONFIG_FUTEX=y ++CONFIG_FUTEX_PI=y ++# CONFIG_EPOLL is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++# CONFIG_IO_URING is not set ++# CONFIG_ADVISE_SYSCALLS is not set ++CONFIG_MEMBARRIER=y ++# CONFIG_KALLSYMS is not set ++# CONFIG_KCMP is not set ++CONFIG_RSEQ=y ++# CONFIG_DEBUG_RSEQ is not set ++# CONFIG_EMBEDDED is not set ++CONFIG_HAVE_PERF_EVENTS=y ++# CONFIG_PC104 is not set ++ ++# ++# Kernel Performance Events And Counters ++# ++# CONFIG_PERF_EVENTS is not set ++# end of Kernel Performance Events And Counters ++ ++# CONFIG_VM_EVENT_COUNTERS is not set ++# CONFIG_COMPAT_BRK is not set ++# CONFIG_SLAB is not set ++# CONFIG_SLUB is not set ++CONFIG_SLOB=y ++# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set ++# CONFIG_MMAP_ALLOW_UNINITIALIZED is not set ++# CONFIG_PROFILING is not set ++# end of General setup ++ ++CONFIG_32BIT=y ++CONFIG_RISCV=y ++CONFIG_ARCH_MMAP_RND_BITS_MIN=8 ++CONFIG_ARCH_MMAP_RND_BITS_MAX=17 ++CONFIG_RISCV_M_MODE=y ++# CONFIG_MMU is not set ++CONFIG_PAGE_OFFSET=0x80000000 ++CONFIG_ARCH_FLATMEM_ENABLE=y ++CONFIG_ARCH_SUPPORTS_UPROBES=y ++CONFIG_STACKTRACE_SUPPORT=y ++CONFIG_GENERIC_BUG=y ++CONFIG_GENERIC_CALIBRATE_DELAY=y ++CONFIG_GENERIC_CSUM=y ++CONFIG_GENERIC_HWEIGHT=y ++CONFIG_PGTABLE_LEVELS=2 ++CONFIG_LOCKDEP_SUPPORT=y ++ ++# ++# SoC selection ++# ++# CONFIG_SOC_MICROCHIP_POLARFIRE is not set ++# CONFIG_SOC_SIFIVE is not set ++# CONFIG_SOC_STARFIVE is not set ++CONFIG_SOC_VIRT=y ++# CONFIG_SOC_CANAAN is not set ++# end of SoC selection ++ ++# ++# CPU errata selection ++# ++CONFIG_RISCV_ERRATA_ALTERNATIVE=y ++# CONFIG_ERRATA_SIFIVE is not set ++# end of CPU errata selection ++ ++# ++# Platform type ++# ++CONFIG_ARCH_RV32I=y ++# CONFIG_ARCH_RV64I is not set ++# CONFIG_CMODEL_MEDLOW is not set ++CONFIG_CMODEL_MEDANY=y ++CONFIG_SMP=y ++CONFIG_NR_CPUS=8 ++# CONFIG_HOTPLUG_CPU is not set ++CONFIG_TUNE_GENERIC=y ++# CONFIG_RISCV_ISA_C is not set ++# CONFIG_FPU is not set ++# end of Platform type ++ ++# ++# Kernel features ++# ++# CONFIG_HZ_100 is not set ++CONFIG_HZ_250=y ++# CONFIG_HZ_300 is not set ++# CONFIG_HZ_1000 is not set ++CONFIG_HZ=250 ++CONFIG_RISCV_BOOT_SPINWAIT=y ++# CONFIG_CRASH_DUMP is not set ++# end of Kernel features ++ ++# ++# Boot options ++# ++CONFIG_CMDLINE="root=/dev/vda rw earlycon=uart8250,mmio,0x10000000,115200n8 console=ttyS0" ++# CONFIG_CMDLINE_FALLBACK is not set ++# CONFIG_CMDLINE_EXTEND is not set ++CONFIG_CMDLINE_FORCE=y ++# CONFIG_PHYS_RAM_BASE_FIXED is not set ++# end of Boot options ++ ++# ++# Power management options ++# ++# CONFIG_PM is not set ++# end of Power management options ++ ++# ++# CPU Power Management ++# ++ ++# ++# CPU Idle ++# ++# CONFIG_CPU_IDLE is not set ++# end of CPU Idle ++# end of CPU Power Management ++ ++# CONFIG_VIRTUALIZATION is not set ++ ++# ++# General architecture-dependent options ++# ++CONFIG_JUMP_LABEL=y ++# CONFIG_STATIC_KEYS_SELFTEST is not set ++CONFIG_HAVE_KPROBES=y ++CONFIG_HAVE_KRETPROBES=y ++CONFIG_HAVE_KPROBES_ON_FTRACE=y ++CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y ++CONFIG_TRACE_IRQFLAGS_SUPPORT=y ++CONFIG_HAVE_ARCH_TRACEHOOK=y ++CONFIG_GENERIC_SMP_IDLE_THREAD=y ++CONFIG_GENERIC_IDLE_POLL_SETUP=y ++CONFIG_ARCH_HAS_FORTIFY_SOURCE=y ++CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y ++CONFIG_HAVE_ASM_MODVERSIONS=y ++CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y ++CONFIG_HAVE_RSEQ=y ++CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y ++CONFIG_HAVE_PERF_REGS=y ++CONFIG_HAVE_PERF_USER_STACK_DUMP=y ++CONFIG_HAVE_ARCH_JUMP_LABEL=y ++CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y ++CONFIG_HAVE_ARCH_SECCOMP=y ++CONFIG_HAVE_ARCH_SECCOMP_FILTER=y ++CONFIG_SECCOMP=y ++CONFIG_HAVE_STACKPROTECTOR=y ++CONFIG_STACKPROTECTOR=y ++CONFIG_STACKPROTECTOR_STRONG=y ++CONFIG_LTO_NONE=y ++CONFIG_HAVE_CONTEXT_TRACKING=y ++CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y ++CONFIG_HAVE_MOVE_PUD=y ++CONFIG_HAVE_MOVE_PMD=y ++CONFIG_PAGE_SIZE_LESS_THAN_64KB=y ++CONFIG_PAGE_SIZE_LESS_THAN_256KB=y ++CONFIG_CLONE_BACKWARDS=y ++CONFIG_COMPAT_32BIT_TIME=y ++CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y ++ ++# ++# GCOV-based kernel profiling ++# ++CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y ++# end of GCOV-based kernel profiling ++ ++CONFIG_HAVE_GCC_PLUGINS=y ++CONFIG_GCC_PLUGINS=y ++# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set ++# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set ++# end of General architecture-dependent options ++ ++CONFIG_RT_MUTEXES=y ++CONFIG_BASE_SMALL=1 ++# CONFIG_MODULES is not set ++CONFIG_BLOCK=y ++CONFIG_BLOCK_LEGACY_AUTOLOAD=y ++# CONFIG_BLK_DEV_BSGLIB is not set ++# CONFIG_BLK_DEV_INTEGRITY is not set ++# CONFIG_BLK_DEV_ZONED is not set ++# CONFIG_BLK_WBT is not set ++# CONFIG_BLK_SED_OPAL is not set ++# CONFIG_BLK_INLINE_ENCRYPTION is not set ++ ++# ++# Partition Types ++# ++CONFIG_PARTITION_ADVANCED=y ++# CONFIG_ACORN_PARTITION is not set ++# CONFIG_AIX_PARTITION is not set ++# CONFIG_OSF_PARTITION is not set ++# CONFIG_AMIGA_PARTITION is not set ++# CONFIG_ATARI_PARTITION is not set ++# CONFIG_MAC_PARTITION is not set ++# CONFIG_MSDOS_PARTITION is not set ++# CONFIG_LDM_PARTITION is not set ++# CONFIG_SGI_PARTITION is not set ++# CONFIG_ULTRIX_PARTITION is not set ++# CONFIG_SUN_PARTITION is not set ++# CONFIG_KARMA_PARTITION is not set ++# CONFIG_EFI_PARTITION is not set ++# CONFIG_SYSV68_PARTITION is not set ++# CONFIG_CMDLINE_PARTITION is not set ++# end of Partition Types ++ ++CONFIG_BLK_MQ_VIRTIO=y ++ ++# ++# IO Schedulers ++# ++# CONFIG_MQ_IOSCHED_DEADLINE is not set ++# CONFIG_MQ_IOSCHED_KYBER is not set ++# CONFIG_IOSCHED_BFQ is not set ++# end of IO Schedulers ++ ++CONFIG_INLINE_SPIN_UNLOCK_IRQ=y ++CONFIG_INLINE_READ_UNLOCK=y ++CONFIG_INLINE_READ_UNLOCK_IRQ=y ++CONFIG_INLINE_WRITE_UNLOCK=y ++CONFIG_INLINE_WRITE_UNLOCK_IRQ=y ++CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y ++CONFIG_MUTEX_SPIN_ON_OWNER=y ++CONFIG_RWSEM_SPIN_ON_OWNER=y ++CONFIG_LOCK_SPIN_ON_OWNER=y ++CONFIG_ARCH_HAS_MMIOWB=y ++CONFIG_MMIOWB=y ++ ++# ++# Executable file formats ++# ++CONFIG_BINFMT_SCRIPT=y ++CONFIG_ARCH_HAS_BINFMT_FLAT=y ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_FLAT_NO_DATA_START_OFFSET=y ++# CONFIG_BINFMT_FLAT_OLD is not set ++# CONFIG_BINFMT_ZFLAT is not set ++# CONFIG_BINFMT_SHARED_FLAT is not set ++# CONFIG_BINFMT_MISC is not set ++# CONFIG_COREDUMP is not set ++# end of Executable file formats ++ ++# ++# Memory Management options ++# ++CONFIG_FLATMEM=y ++CONFIG_EXCLUSIVE_SYSTEM_RAM=y ++CONFIG_SPLIT_PTLOCK_CPUS=999999 ++# CONFIG_PAGE_REPORTING is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1 ++CONFIG_ARCH_WANT_GENERAL_HUGETLB=y ++CONFIG_NEED_PER_CPU_KM=y ++# CONFIG_ZPOOL is not set ++CONFIG_GENERIC_EARLY_IOREMAP=y ++CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y ++# CONFIG_PERCPU_STATS is not set ++ ++# ++# GUP_TEST needs to have DEBUG_FS enabled ++# ++CONFIG_ARCH_HAS_PTE_SPECIAL=y ++ ++# ++# Data Access Monitoring ++# ++# CONFIG_DAMON is not set ++# end of Data Access Monitoring ++# end of Memory Management options ++ ++# CONFIG_NET is not set ++ ++# ++# Device Drivers ++# ++CONFIG_HAVE_PCI=y ++# CONFIG_PCI is not set ++# CONFIG_PCCARD is not set ++ ++# ++# Generic Driver Options ++# ++# CONFIG_UEVENT_HELPER is not set ++CONFIG_DEVTMPFS=y ++CONFIG_DEVTMPFS_MOUNT=y ++# CONFIG_DEVTMPFS_SAFE is not set ++CONFIG_STANDALONE=y ++CONFIG_PREVENT_FIRMWARE_BUILD=y ++ ++# ++# Firmware loader ++# ++# CONFIG_FW_LOADER is not set ++# end of Firmware loader ++ ++# CONFIG_ALLOW_DEV_COREDUMP is not set ++# CONFIG_DEBUG_DRIVER is not set ++# CONFIG_DEBUG_DEVRES is not set ++# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set ++CONFIG_REGMAP=y ++CONFIG_REGMAP_MMIO=y ++CONFIG_GENERIC_ARCH_TOPOLOGY=y ++# end of Generic Driver Options ++ ++# ++# Bus devices ++# ++# CONFIG_MHI_BUS is not set ++# end of Bus devices ++ ++# ++# Firmware Drivers ++# ++ ++# ++# ARM System Control and Management Interface Protocol ++# ++# end of ARM System Control and Management Interface Protocol ++ ++# CONFIG_FIRMWARE_MEMMAP is not set ++# CONFIG_GOOGLE_FIRMWARE is not set ++ ++# ++# Tegra firmware driver ++# ++# end of Tegra firmware driver ++# end of Firmware Drivers ++ ++# CONFIG_GNSS is not set ++# CONFIG_MTD is not set ++CONFIG_DTC=y ++CONFIG_OF=y ++# CONFIG_OF_UNITTEST is not set ++CONFIG_OF_FLATTREE=y ++CONFIG_OF_EARLY_FLATTREE=y ++CONFIG_OF_KOBJ=y ++CONFIG_OF_ADDRESS=y ++CONFIG_OF_IRQ=y ++CONFIG_OF_RESERVED_MEM=y ++# CONFIG_OF_OVERLAY is not set ++# CONFIG_PARPORT is not set ++CONFIG_BLK_DEV=y ++# CONFIG_BLK_DEV_NULL_BLK is not set ++# CONFIG_BLK_DEV_LOOP is not set ++ ++# ++# DRBD disabled because PROC_FS or INET not selected ++# ++# CONFIG_BLK_DEV_RAM is not set ++CONFIG_VIRTIO_BLK=y ++ ++# ++# NVME Support ++# ++# CONFIG_NVME_FC is not set ++# end of NVME Support ++ ++# ++# Misc devices ++# ++# CONFIG_DUMMY_IRQ is not set ++# CONFIG_ENCLOSURE_SERVICES is not set ++# CONFIG_SRAM is not set ++# CONFIG_XILINX_SDFEC is not set ++# CONFIG_OPEN_DICE is not set ++# CONFIG_C2PORT is not set ++ ++# ++# EEPROM support ++# ++# CONFIG_EEPROM_93CX6 is not set ++# end of EEPROM support ++ ++# ++# Texas Instruments shared transport line discipline ++# ++# end of Texas Instruments shared transport line discipline ++ ++# ++# Altera FPGA firmware download module (requires I2C) ++# ++# CONFIG_ECHO is not set ++# CONFIG_PVPANIC is not set ++# end of Misc devices ++ ++# ++# SCSI device support ++# ++CONFIG_SCSI_MOD=y ++# CONFIG_RAID_ATTRS is not set ++# CONFIG_SCSI is not set ++# end of SCSI device support ++ ++# CONFIG_ATA is not set ++# CONFIG_MD is not set ++# CONFIG_TARGET_CORE is not set ++ ++# ++# Input device support ++# ++CONFIG_INPUT=y ++# CONFIG_INPUT_FF_MEMLESS is not set ++# CONFIG_INPUT_SPARSEKMAP is not set ++# CONFIG_INPUT_MATRIXKMAP is not set ++ ++# ++# Userland interfaces ++# ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_JOYDEV is not set ++# CONFIG_INPUT_EVDEV is not set ++# CONFIG_INPUT_EVBUG is not set ++ ++# ++# Input Device Drivers ++# ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_INPUT_JOYSTICK is not set ++# CONFIG_INPUT_TABLET is not set ++# CONFIG_INPUT_TOUCHSCREEN is not set ++# CONFIG_INPUT_MISC is not set ++# CONFIG_RMI4_CORE is not set ++ ++# ++# Hardware I/O ports ++# ++# CONFIG_SERIO is not set ++# CONFIG_GAMEPORT is not set ++# end of Hardware I/O ports ++# end of Input device support ++ ++# ++# Character devices ++# ++CONFIG_TTY=y ++CONFIG_VT=y ++CONFIG_CONSOLE_TRANSLATIONS=y ++CONFIG_VT_CONSOLE=y ++CONFIG_HW_CONSOLE=y ++# CONFIG_VT_HW_CONSOLE_BINDING is not set ++CONFIG_UNIX98_PTYS=y ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_LDISC_AUTOLOAD is not set ++ ++# ++# Serial drivers ++# ++CONFIG_SERIAL_EARLYCON=y ++CONFIG_SERIAL_8250=y ++# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set ++CONFIG_SERIAL_8250_16550A_VARIANTS=y ++# CONFIG_SERIAL_8250_FINTEK is not set ++CONFIG_SERIAL_8250_CONSOLE=y ++CONFIG_SERIAL_8250_NR_UARTS=1 ++CONFIG_SERIAL_8250_RUNTIME_UARTS=1 ++# CONFIG_SERIAL_8250_EXTENDED is not set ++# CONFIG_SERIAL_8250_ASPEED_VUART is not set ++# CONFIG_SERIAL_8250_DW is not set ++# CONFIG_SERIAL_8250_RT288X is not set ++CONFIG_SERIAL_OF_PLATFORM=y ++ ++# ++# Non-8250 serial port support ++# ++# CONFIG_SERIAL_UARTLITE is not set ++CONFIG_SERIAL_CORE=y ++CONFIG_SERIAL_CORE_CONSOLE=y ++# CONFIG_SERIAL_SIFIVE is not set ++# CONFIG_SERIAL_SCCNXP is not set ++# CONFIG_SERIAL_ALTERA_JTAGUART is not set ++# CONFIG_SERIAL_ALTERA_UART is not set ++# CONFIG_SERIAL_XILINX_PS_UART is not set ++# CONFIG_SERIAL_ARC is not set ++# CONFIG_SERIAL_FSL_LPUART is not set ++# CONFIG_SERIAL_FSL_LINFLEXUART is not set ++# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set ++# CONFIG_SERIAL_SPRD is not set ++# end of Serial drivers ++ ++# CONFIG_SERIAL_NONSTANDARD is not set ++# CONFIG_GOLDFISH_TTY is not set ++# CONFIG_NULL_TTY is not set ++# CONFIG_SERIAL_DEV_BUS is not set ++# CONFIG_TTY_PRINTK is not set ++# CONFIG_VIRTIO_CONSOLE is not set ++# CONFIG_IPMI_HANDLER is not set ++# CONFIG_HW_RANDOM is not set ++# CONFIG_DEVMEM is not set ++# CONFIG_TCG_TPM is not set ++# CONFIG_XILLYBUS is not set ++# CONFIG_RANDOM_TRUST_BOOTLOADER is not set ++# end of Character devices ++ ++# ++# I2C support ++# ++# CONFIG_I2C is not set ++# end of I2C support ++ ++# CONFIG_I3C is not set ++# CONFIG_SPI is not set ++# CONFIG_SPMI is not set ++# CONFIG_HSI is not set ++# CONFIG_PPS is not set ++ ++# ++# PTP clock support ++# ++CONFIG_PTP_1588_CLOCK_OPTIONAL=y ++ ++# ++# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks. ++# ++# end of PTP clock support ++ ++# CONFIG_PINCTRL is not set ++# CONFIG_GPIOLIB is not set ++# CONFIG_W1 is not set ++CONFIG_POWER_RESET=y ++# CONFIG_POWER_RESET_RESTART is not set ++CONFIG_POWER_RESET_SYSCON=y ++CONFIG_POWER_RESET_SYSCON_POWEROFF=y ++# CONFIG_SYSCON_REBOOT_MODE is not set ++# CONFIG_NVMEM_REBOOT_MODE is not set ++# CONFIG_POWER_SUPPLY is not set ++# CONFIG_HWMON is not set ++# CONFIG_THERMAL is not set ++# CONFIG_WATCHDOG is not set ++CONFIG_SSB_POSSIBLE=y ++# CONFIG_SSB is not set ++CONFIG_BCMA_POSSIBLE=y ++# CONFIG_BCMA is not set ++ ++# ++# Multifunction device drivers ++# ++# CONFIG_MFD_ATMEL_FLEXCOM is not set ++# CONFIG_MFD_ATMEL_HLCDC is not set ++# CONFIG_MFD_MADERA is not set ++# CONFIG_MFD_HI6421_PMIC is not set ++# CONFIG_HTC_PASIC3 is not set ++# CONFIG_MFD_KEMPLD is not set ++# CONFIG_MFD_MT6397 is not set ++# CONFIG_MFD_SM501 is not set ++CONFIG_MFD_SYSCON=y ++# CONFIG_MFD_TI_AM335X_TSCADC is not set ++# CONFIG_MFD_TQMX86 is not set ++# end of Multifunction device drivers ++ ++# CONFIG_REGULATOR is not set ++# CONFIG_RC_CORE is not set ++ ++# ++# CEC support ++# ++# CONFIG_MEDIA_CEC_SUPPORT is not set ++# end of CEC support ++ ++# CONFIG_MEDIA_SUPPORT is not set ++ ++# ++# Graphics support ++# ++# CONFIG_DRM is not set ++# CONFIG_DRM_DEBUG_MODESET_LOCK is not set ++ ++# ++# ARM devices ++# ++# end of ARM devices ++ ++# ++# Frame buffer Devices ++# ++# CONFIG_FB is not set ++# end of Frame buffer Devices ++ ++# ++# Backlight & LCD device support ++# ++# CONFIG_LCD_CLASS_DEVICE is not set ++# CONFIG_BACKLIGHT_CLASS_DEVICE is not set ++# end of Backlight & LCD device support ++ ++# ++# Console display driver support ++# ++# CONFIG_VGA_CONSOLE is not set ++CONFIG_DUMMY_CONSOLE=y ++CONFIG_DUMMY_CONSOLE_COLUMNS=80 ++CONFIG_DUMMY_CONSOLE_ROWS=25 ++# end of Console display driver support ++# end of Graphics support ++ ++# CONFIG_SOUND is not set ++ ++# ++# HID support ++# ++# CONFIG_HID is not set ++# end of HID support ++ ++CONFIG_USB_OHCI_LITTLE_ENDIAN=y ++# CONFIG_USB_SUPPORT is not set ++# CONFIG_MMC is not set ++# CONFIG_MEMSTICK is not set ++# CONFIG_NEW_LEDS is not set ++# CONFIG_ACCESSIBILITY is not set ++CONFIG_EDAC_SUPPORT=y ++# CONFIG_RTC_CLASS is not set ++# CONFIG_DMADEVICES is not set ++ ++# ++# DMABUF options ++# ++# CONFIG_SYNC_FILE is not set ++# CONFIG_DMABUF_HEAPS is not set ++# end of DMABUF options ++ ++# CONFIG_AUXDISPLAY is not set ++# CONFIG_VFIO is not set ++# CONFIG_VIRT_DRIVERS is not set ++CONFIG_VIRTIO=y ++CONFIG_VIRTIO_MENU=y ++# CONFIG_VIRTIO_BALLOON is not set ++# CONFIG_VIRTIO_INPUT is not set ++CONFIG_VIRTIO_MMIO=y ++CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y ++CONFIG_VHOST_MENU=y ++# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set ++ ++# ++# Microsoft Hyper-V guest support ++# ++# end of Microsoft Hyper-V guest support ++ ++# CONFIG_GREYBUS is not set ++# CONFIG_COMEDI is not set ++# CONFIG_STAGING is not set ++CONFIG_GOLDFISH=y ++# CONFIG_GOLDFISH_PIPE is not set ++CONFIG_HAVE_CLK=y ++CONFIG_HAVE_CLK_PREPARE=y ++CONFIG_COMMON_CLK=y ++# CONFIG_COMMON_CLK_AXI_CLKGEN is not set ++# CONFIG_COMMON_CLK_FIXED_MMIO is not set ++# CONFIG_CLK_SIFIVE is not set ++# CONFIG_XILINX_VCU is not set ++# CONFIG_HWSPINLOCK is not set ++ ++# ++# Clock Source drivers ++# ++CONFIG_TIMER_OF=y ++CONFIG_TIMER_PROBE=y ++CONFIG_CLINT_TIMER=y ++# CONFIG_MICROCHIP_PIT64B is not set ++# end of Clock Source drivers ++ ++# CONFIG_MAILBOX is not set ++ ++# ++# Remoteproc drivers ++# ++# CONFIG_REMOTEPROC is not set ++# end of Remoteproc drivers ++ ++# ++# Rpmsg drivers ++# ++# CONFIG_RPMSG_VIRTIO is not set ++# end of Rpmsg drivers ++ ++# CONFIG_SOUNDWIRE is not set ++ ++# ++# SOC (System On Chip) specific Drivers ++# ++ ++# ++# Amlogic SoC drivers ++# ++# end of Amlogic SoC drivers ++ ++# ++# Broadcom SoC drivers ++# ++# end of Broadcom SoC drivers ++ ++# ++# NXP/Freescale QorIQ SoC drivers ++# ++# end of NXP/Freescale QorIQ SoC drivers ++ ++# ++# i.MX SoC drivers ++# ++# end of i.MX SoC drivers ++ ++# ++# Enable LiteX SoC Builder specific drivers ++# ++# CONFIG_LITEX_SOC_CONTROLLER is not set ++# end of Enable LiteX SoC Builder specific drivers ++ ++# ++# Qualcomm SoC drivers ++# ++# end of Qualcomm SoC drivers ++ ++# CONFIG_SOC_TI is not set ++ ++# ++# Xilinx SoC drivers ++# ++# end of Xilinx SoC drivers ++# end of SOC (System On Chip) specific Drivers ++ ++# CONFIG_PM_DEVFREQ is not set ++# CONFIG_EXTCON is not set ++# CONFIG_MEMORY is not set ++# CONFIG_IIO is not set ++# CONFIG_PWM is not set ++ ++# ++# IRQ chip support ++# ++CONFIG_IRQCHIP=y ++# CONFIG_AL_FIC is not set ++CONFIG_RISCV_INTC=y ++CONFIG_SIFIVE_PLIC=y ++# end of IRQ chip support ++ ++# CONFIG_IPACK_BUS is not set ++# CONFIG_RESET_CONTROLLER is not set ++ ++# ++# PHY Subsystem ++# ++# CONFIG_GENERIC_PHY is not set ++# CONFIG_PHY_CAN_TRANSCEIVER is not set ++ ++# ++# PHY drivers for Broadcom platforms ++# ++# CONFIG_BCM_KONA_USB2_PHY is not set ++# end of PHY drivers for Broadcom platforms ++ ++# CONFIG_PHY_CADENCE_TORRENT is not set ++# CONFIG_PHY_CADENCE_DPHY is not set ++# CONFIG_PHY_CADENCE_DPHY_RX is not set ++# CONFIG_PHY_CADENCE_SALVO is not set ++# CONFIG_PHY_PXA_28NM_HSIC is not set ++# CONFIG_PHY_PXA_28NM_USB2 is not set ++# CONFIG_PHY_LAN966X_SERDES is not set ++# CONFIG_PHY_OCELOT_SERDES is not set ++# end of PHY Subsystem ++ ++# CONFIG_POWERCAP is not set ++# CONFIG_MCB is not set ++# CONFIG_RAS is not set ++ ++# ++# Android ++# ++# CONFIG_ANDROID is not set ++# end of Android ++ ++# CONFIG_DAX is not set ++# CONFIG_NVMEM is not set ++ ++# ++# HW tracing support ++# ++# CONFIG_STM is not set ++# CONFIG_INTEL_TH is not set ++# end of HW tracing support ++ ++# CONFIG_FPGA is not set ++# CONFIG_FSI is not set ++# CONFIG_SIOX is not set ++# CONFIG_SLIMBUS is not set ++# CONFIG_INTERCONNECT is not set ++# CONFIG_COUNTER is not set ++# CONFIG_PECI is not set ++# end of Device Drivers ++ ++# ++# File systems ++# ++# CONFIG_VALIDATE_FS_PARSER is not set ++CONFIG_FS_IOMAP=y ++CONFIG_EXT2_FS=y ++# CONFIG_EXT2_FS_XATTR is not set ++# CONFIG_EXT3_FS is not set ++# CONFIG_EXT4_FS is not set ++# CONFIG_REISERFS_FS is not set ++# CONFIG_JFS_FS is not set ++# CONFIG_XFS_FS is not set ++# CONFIG_GFS2_FS is not set ++# CONFIG_BTRFS_FS is not set ++# CONFIG_NILFS2_FS is not set ++# CONFIG_F2FS_FS is not set ++# CONFIG_EXPORTFS_BLOCK_OPS is not set ++CONFIG_FILE_LOCKING=y ++# CONFIG_FS_ENCRYPTION is not set ++# CONFIG_FS_VERITY is not set ++# CONFIG_DNOTIFY is not set ++# CONFIG_INOTIFY_USER is not set ++# CONFIG_FANOTIFY is not set ++# CONFIG_QUOTA is not set ++# CONFIG_AUTOFS4_FS is not set ++# CONFIG_AUTOFS_FS is not set ++# CONFIG_FUSE_FS is not set ++# CONFIG_OVERLAY_FS is not set ++ ++# ++# Caches ++# ++# CONFIG_FSCACHE is not set ++# end of Caches ++ ++# ++# CD-ROM/DVD Filesystems ++# ++# CONFIG_ISO9660_FS is not set ++# CONFIG_UDF_FS is not set ++# end of CD-ROM/DVD Filesystems ++ ++# ++# DOS/FAT/EXFAT/NT Filesystems ++# ++# CONFIG_MSDOS_FS is not set ++# CONFIG_VFAT_FS is not set ++# CONFIG_EXFAT_FS is not set ++# CONFIG_NTFS_FS is not set ++# CONFIG_NTFS3_FS is not set ++# end of DOS/FAT/EXFAT/NT Filesystems ++ ++# ++# Pseudo filesystems ++# ++CONFIG_PROC_FS=y ++CONFIG_PROC_SYSCTL=y ++# CONFIG_PROC_CHILDREN is not set ++CONFIG_KERNFS=y ++CONFIG_SYSFS=y ++CONFIG_ARCH_HAS_GIGANTIC_PAGE=y ++# CONFIG_CONFIGFS_FS is not set ++# end of Pseudo filesystems ++ ++# CONFIG_MISC_FILESYSTEMS is not set ++# CONFIG_NLS is not set ++# CONFIG_UNICODE is not set ++# end of File systems ++ ++# ++# Security options ++# ++# CONFIG_KEYS is not set ++# CONFIG_SECURITY_DMESG_RESTRICT is not set ++# CONFIG_SECURITY is not set ++# CONFIG_SECURITYFS is not set ++# CONFIG_FORTIFY_SOURCE is not set ++# CONFIG_STATIC_USERMODEHELPER is not set ++CONFIG_DEFAULT_SECURITY_DAC=y ++CONFIG_LSM="[]" ++ ++# ++# Kernel hardening options ++# ++ ++# ++# Memory initialization ++# ++CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y ++CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y ++# CONFIG_INIT_STACK_NONE is not set ++# CONFIG_INIT_STACK_ALL_PATTERN is not set ++CONFIG_INIT_STACK_ALL_ZERO=y ++# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set ++# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set ++CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y ++# CONFIG_ZERO_CALL_USED_REGS is not set ++# end of Memory initialization ++# end of Kernel hardening options ++# end of Security options ++ ++# CONFIG_CRYPTO is not set ++ ++# ++# Library routines ++# ++# CONFIG_PACKING is not set ++CONFIG_BITREVERSE=y ++CONFIG_GENERIC_STRNCPY_FROM_USER=y ++CONFIG_GENERIC_STRNLEN_USER=y ++# CONFIG_CORDIC is not set ++# CONFIG_PRIME_NUMBERS is not set ++CONFIG_RATIONAL=y ++CONFIG_GENERIC_PCI_IOMAP=y ++ ++# ++# Crypto library routines ++# ++CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y ++# CONFIG_CRYPTO_LIB_CURVE25519 is not set ++CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1 ++# CONFIG_CRYPTO_LIB_POLY1305 is not set ++# end of Crypto library routines ++ ++# CONFIG_CRC_CCITT is not set ++# CONFIG_CRC16 is not set ++# CONFIG_CRC_T10DIF is not set ++# CONFIG_CRC64_ROCKSOFT is not set ++# CONFIG_CRC_ITU_T is not set ++CONFIG_CRC32=y ++# CONFIG_CRC32_SELFTEST is not set ++CONFIG_CRC32_SLICEBY8=y ++# CONFIG_CRC32_SLICEBY4 is not set ++# CONFIG_CRC32_SARWATE is not set ++# CONFIG_CRC32_BIT is not set ++# CONFIG_CRC64 is not set ++# CONFIG_CRC4 is not set ++# CONFIG_CRC7 is not set ++# CONFIG_LIBCRC32C is not set ++# CONFIG_CRC8 is not set ++CONFIG_XXHASH=y ++# CONFIG_RANDOM32_SELFTEST is not set ++CONFIG_ZLIB_INFLATE=y ++CONFIG_ZSTD_DECOMPRESS=y ++# CONFIG_XZ_DEC is not set ++CONFIG_DECOMPRESS_GZIP=y ++CONFIG_DECOMPRESS_ZSTD=y ++CONFIG_HAS_IOMEM=y ++CONFIG_HAS_IOPORT_MAP=y ++CONFIG_HAS_DMA=y ++CONFIG_DMA_DECLARE_COHERENT=y ++CONFIG_DMA_NONCOHERENT_MMAP=y ++# CONFIG_DMA_API_DEBUG is not set ++CONFIG_GENERIC_ATOMIC64=y ++# CONFIG_IRQ_POLL is not set ++CONFIG_LIBFDT=y ++CONFIG_SG_POOL=y ++CONFIG_UACCESS_MEMCPY=y ++CONFIG_ARCH_STACKWALK=y ++CONFIG_SBITMAP=y ++# end of Library routines ++ ++CONFIG_GENERIC_LIB_ASHLDI3=y ++CONFIG_GENERIC_LIB_ASHRDI3=y ++CONFIG_GENERIC_LIB_LSHRDI3=y ++CONFIG_GENERIC_LIB_UCMPDI2=y ++CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y ++ ++# ++# Kernel hacking ++# ++ ++# ++# printk and dmesg options ++# ++CONFIG_PRINTK_TIME=y ++# CONFIG_PRINTK_CALLER is not set ++# CONFIG_STACKTRACE_BUILD_ID is not set ++CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7 ++CONFIG_CONSOLE_LOGLEVEL_QUIET=4 ++CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4 ++# CONFIG_BOOT_PRINTK_DELAY is not set ++# CONFIG_DYNAMIC_DEBUG is not set ++# CONFIG_DYNAMIC_DEBUG_CORE is not set ++CONFIG_SYMBOLIC_ERRNAME=y ++CONFIG_DEBUG_BUGVERBOSE=y ++# end of printk and dmesg options ++ ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_MISC=y ++ ++# ++# Compile-time checks and compiler options ++# ++CONFIG_DEBUG_INFO_NONE=y ++# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set ++# CONFIG_DEBUG_INFO_DWARF4 is not set ++# CONFIG_DEBUG_INFO_DWARF5 is not set ++CONFIG_FRAME_WARN=2048 ++# CONFIG_STRIP_ASM_SYMS is not set ++# CONFIG_READABLE_ASM is not set ++# CONFIG_HEADERS_INSTALL is not set ++# CONFIG_DEBUG_SECTION_MISMATCH is not set ++CONFIG_SECTION_MISMATCH_WARN_ONLY=y ++CONFIG_ARCH_WANT_FRAME_POINTERS=y ++CONFIG_FRAME_POINTER=y ++# CONFIG_VMLINUX_MAP is not set ++# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set ++# end of Compile-time checks and compiler options ++ ++# ++# Generic Kernel Debugging Instruments ++# ++# CONFIG_MAGIC_SYSRQ is not set ++# CONFIG_DEBUG_FS is not set ++CONFIG_HAVE_ARCH_KGDB=y ++CONFIG_HAVE_ARCH_KGDB_QXFER_PKT=y ++# CONFIG_KGDB is not set ++CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y ++# CONFIG_UBSAN is not set ++CONFIG_HAVE_KCSAN_COMPILER=y ++# end of Generic Kernel Debugging Instruments ++ ++# ++# Networking Debugging ++# ++# CONFIG_NET_DEV_REFCNT_TRACKER is not set ++# CONFIG_NET_NS_REFCNT_TRACKER is not set ++# end of Networking Debugging ++ ++# ++# Memory Debugging ++# ++# CONFIG_PAGE_EXTENSION is not set ++# CONFIG_DEBUG_PAGEALLOC is not set ++# CONFIG_PAGE_OWNER is not set ++# CONFIG_PAGE_POISONING is not set ++CONFIG_ARCH_HAS_DEBUG_WX=y ++# CONFIG_DEBUG_OBJECTS is not set ++CONFIG_HAVE_DEBUG_KMEMLEAK=y ++# CONFIG_DEBUG_KMEMLEAK is not set ++# CONFIG_DEBUG_STACK_USAGE is not set ++# CONFIG_SCHED_STACK_END_CHECK is not set ++CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y ++# CONFIG_DEBUG_VM is not set ++# CONFIG_DEBUG_NOMMU_REGIONS is not set ++# CONFIG_DEBUG_MEMORY_INIT is not set ++# CONFIG_DEBUG_PER_CPU_MAPS is not set ++CONFIG_CC_HAS_KASAN_GENERIC=y ++CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y ++# end of Memory Debugging ++ ++# CONFIG_DEBUG_SHIRQ is not set ++ ++# ++# Debug Oops, Lockups and Hangs ++# ++# CONFIG_PANIC_ON_OOPS is not set ++CONFIG_PANIC_ON_OOPS_VALUE=0 ++CONFIG_PANIC_TIMEOUT=0 ++# CONFIG_SOFTLOCKUP_DETECTOR is not set ++# CONFIG_DETECT_HUNG_TASK is not set ++# CONFIG_WQ_WATCHDOG is not set ++# end of Debug Oops, Lockups and Hangs ++ ++# ++# Scheduler Debugging ++# ++# CONFIG_SCHED_DEBUG is not set ++# CONFIG_SCHEDSTATS is not set ++# end of Scheduler Debugging ++ ++# CONFIG_DEBUG_TIMEKEEPING is not set ++ ++# ++# Lock Debugging (spinlocks, mutexes, etc...) ++# ++CONFIG_LOCK_DEBUGGING_SUPPORT=y ++# CONFIG_PROVE_LOCKING is not set ++# CONFIG_LOCK_STAT is not set ++# CONFIG_DEBUG_RT_MUTEXES is not set ++# CONFIG_DEBUG_SPINLOCK is not set ++# CONFIG_DEBUG_MUTEXES is not set ++# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set ++# CONFIG_DEBUG_RWSEMS is not set ++# CONFIG_DEBUG_LOCK_ALLOC is not set ++# CONFIG_DEBUG_ATOMIC_SLEEP is not set ++# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set ++# CONFIG_LOCK_TORTURE_TEST is not set ++# CONFIG_WW_MUTEX_SELFTEST is not set ++# CONFIG_SCF_TORTURE_TEST is not set ++# end of Lock Debugging (spinlocks, mutexes, etc...) ++ ++# CONFIG_DEBUG_IRQFLAGS is not set ++# CONFIG_STACKTRACE is not set ++# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set ++# CONFIG_DEBUG_KOBJECT is not set ++ ++# ++# Debug kernel data structures ++# ++# CONFIG_DEBUG_LIST is not set ++# CONFIG_DEBUG_PLIST is not set ++# CONFIG_DEBUG_SG is not set ++# CONFIG_DEBUG_NOTIFIERS is not set ++# CONFIG_BUG_ON_DATA_CORRUPTION is not set ++# end of Debug kernel data structures ++ ++# CONFIG_DEBUG_CREDENTIALS is not set ++ ++# ++# RCU Debugging ++# ++# CONFIG_RCU_SCALE_TEST is not set ++# CONFIG_RCU_TORTURE_TEST is not set ++# CONFIG_RCU_REF_SCALE_TEST is not set ++CONFIG_RCU_CPU_STALL_TIMEOUT=21 ++# CONFIG_RCU_TRACE is not set ++# CONFIG_RCU_EQS_DEBUG is not set ++# end of RCU Debugging ++ ++# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set ++# CONFIG_LATENCYTOP is not set ++CONFIG_HAVE_SYSCALL_TRACEPOINTS=y ++CONFIG_TRACING_SUPPORT=y ++# CONFIG_FTRACE is not set ++# CONFIG_SAMPLES is not set ++ ++# ++# riscv Debugging ++# ++# end of riscv Debugging ++ ++# ++# Kernel Testing and Coverage ++# ++# CONFIG_KUNIT is not set ++# CONFIG_NOTIFIER_ERROR_INJECTION is not set ++# CONFIG_FAULT_INJECTION is not set ++CONFIG_ARCH_HAS_KCOV=y ++CONFIG_CC_HAS_SANCOV_TRACE_PC=y ++# CONFIG_KCOV is not set ++# CONFIG_RUNTIME_TESTING_MENU is not set ++CONFIG_ARCH_USE_MEMTEST=y ++# CONFIG_MEMTEST is not set ++# end of Kernel Testing and Coverage ++# end of Kernel hacking +diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h +index 73d7cdd2e..53f5410c1 100644 +--- a/arch/riscv/include/uapi/asm/unistd.h ++++ b/arch/riscv/include/uapi/asm/unistd.h +@@ -15,9 +15,14 @@ + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +-#if defined(__LP64__) && !defined(__SYSCALL_COMPAT) ++#ifndef __SYSCALL_COMPAT + #define __ARCH_WANT_NEW_STAT + #define __ARCH_WANT_SET_GET_RLIMIT ++#endif ++ ++#ifndef __LP64__ ++#define __ARCH_WANT_STAT64 ++#define __ARCH_WANT_TIME32_SYSCALLS + #endif /* __LP64__ */ + + #define __ARCH_WANT_SYS_CLONE3 +-- +2.38.1 + diff --git a/board/qemu/riscv32-virt/readme.txt b/board/qemu/riscv32-virt/readme.txt index 32b4333512..a7ec3ce8bf 100644 --- a/board/qemu/riscv32-virt/readme.txt +++ b/board/qemu/riscv32-virt/readme.txt @@ -2,4 +2,6 @@ Run Linux in emulation with: qemu-system-riscv32 -M virt -bios output/images/fw_jump.elf -kernel output/images/Image -append "rootwait root=/dev/vda ro" -drive file=output/images/rootfs.ext2,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -netdev user,id=net0 -device virtio-net-device,netdev=net0 -nographic # qemu_riscv32_virt_defconfig + qemu-system-riscv32 -M virt -bios none -kernel output/images/Image -append "rootwait root=/dev/vda ro" -drive file=output/images/rootfs.ext2,format=raw,id=hd0 -device virtio-blk-device,drive=hd0 -nographic -cpu rv32,mmu=off # qemu_riscv32_nommu_virt_defconfig + The login prompt will appear in the terminal that started Qemu. diff --git a/configs/qemu_riscv32_nommu_virt_defconfig b/configs/qemu_riscv32_nommu_virt_defconfig new file mode 100644 index 0000000000..5b17f53632 --- /dev/null +++ b/configs/qemu_riscv32_nommu_virt_defconfig @@ -0,0 +1,19 @@ +BR2_riscv=y +BR2_riscv_custom=y +BR2_RISCV_ISA_CUSTOM_RVM=y +BR2_RISCV_32=y +# BR2_RISCV_USE_MMU is not set +BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_5_19=y +BR2_PTHREADS_NONE=y +BR2_GLOBAL_PATCH_DIR="board/qemu/riscv32-virt/nommu/patches" +BR2_ROOTFS_POST_IMAGE_SCRIPT="board/qemu/post-image.sh" +BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)" +BR2_LINUX_KERNEL=y +BR2_LINUX_KERNEL_CUSTOM_VERSION=y +BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.19" +BR2_LINUX_KERNEL_DEFCONFIG="nommu_rv32_virt" +BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox-minimal.config" +# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set +BR2_TARGET_ROOTFS_EXT2=y +BR2_PACKAGE_HOST_QEMU=y +BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE=y diff --git a/package/Makefile.in b/package/Makefile.in index 43d214bcbe..f196c3a28d 100644 --- a/package/Makefile.in +++ b/package/Makefile.in @@ -39,10 +39,16 @@ endif # Compute GNU_TARGET_NAME GNU_TARGET_NAME = $(ARCH)-$(TARGET_VENDOR)-$(TARGET_OS)-$(LIBC)$(ABI) -# FLAT binary format needs uclinux, except RISC-V 64-bits which needs +# FLAT binary format needs uclinux, except RISC-V nommu which needs # the regular linux name. -ifeq ($(BR2_BINFMT_FLAT):$(BR2_RISCV_64),y:) +ifeq ($(BR2_BINFMT_FLAT),y) +ifeq ($(BR2_RISCV_64),y) +TARGET_OS = linux +else ifeq ($(BR2_RISCV_32),y) +TARGET_OS = linux +else TARGET_OS = uclinux +endif else TARGET_OS = linux endif @@ -177,6 +183,9 @@ ifeq ($(BR2_BINFMT_FLAT),y) ifeq ($(BR2_RISCV_64),y) TARGET_CFLAGS += -fPIC endif +ifeq ($(BR2_RISCV_32),y) +TARGET_CFLAGS += -fPIC +endif ifeq ($(BR2_BINFMT_FLAT_ONE),y) ELF2FLT_FLAGS = $(if $($(PKG)_FLAT_STACKSIZE),\ -Wl$(comma)-elf2flt="-r -s$($(PKG)_FLAT_STACKSIZE)",\ diff --git a/package/elf2flt/0006-Added-RISC-V-32-bit-compilation-support.patch b/package/elf2flt/0006-Added-RISC-V-32-bit-compilation-support.patch new file mode 100644 index 0000000000..13feaa2d3b --- /dev/null +++ b/package/elf2flt/0006-Added-RISC-V-32-bit-compilation-support.patch @@ -0,0 +1,74 @@ +From 599e31157815a6e82d920693fafea249ef95dfc7 Mon Sep 17 00:00:00 2001 +From: Yimin Gu <ustcymgu@gmail.com> +Date: Thu, 17 Nov 2022 21:16:28 +0900 +Subject: [PATCH] Added RISC-V 32-bit compilation support + +Let elf2flt compile for RISC-V 32-bit targets. With these changes, the +uclibc toolchain and busybox can work fine for rv32 no MMU systems with +no noticable problem. + +There's no change of code except macros and definitions. + +Signed-off-by: Yimin Gu <ustcymgu@gmail.com> +--- + elf2flt.c | 9 ++++++--- + ld-elf2flt.c | 2 +- + 2 files changed, 7 insertions(+), 4 deletions(-) + +diff --git a/elf2flt.c b/elf2flt.c +index 949edd1..28f3808 100644 +--- a/elf2flt.c ++++ b/elf2flt.c +@@ -81,7 +81,7 @@ const char *elf2flt_progname; + #include <elf/v850.h> + #elif defined(TARGET_xtensa) + #include <elf/xtensa.h> +-#elif defined(TARGET_riscv64) ++#elif defined(TARGET_riscv64) || defined(TARGET_riscv32) + #include <elf/riscv.h> + #endif + +@@ -127,6 +127,8 @@ const char *elf2flt_progname; + #define ARCH "xtensa" + #elif defined(TARGET_riscv64) + #define ARCH "riscv64" ++#elif defined(TARGET_riscv32) ++#define ARCH "riscv32" + #else + #error "Don't know how to support your CPU architecture??" + #endif +@@ -351,7 +353,8 @@ ro_reloc_data_section_should_be_in_text(asection *s) + { + if ((s->flags & (SEC_DATA | SEC_READONLY | SEC_RELOC)) == + (SEC_DATA | SEC_READONLY | SEC_RELOC)) { +-#if defined(TARGET_m68k) || defined(TARGET_riscv64) || defined(TARGET_xtensa) ++#if defined(TARGET_m68k) || defined(TARGET_riscv64) || \ ++ defined(TARGET_riscv32) || defined(TARGET_xtensa) + if (!strcmp(".eh_frame", s->name)) + return false; + #endif +@@ -838,7 +841,7 @@ output_relocs ( + goto good_32bit_resolved_reloc; + default: + goto bad_resolved_reloc; +-#elif defined(TARGET_riscv64) ++#elif defined(TARGET_riscv64) || defined(TARGET_riscv32) + case R_RISCV_32_PCREL: + case R_RISCV_ADD32: + case R_RISCV_ADD64: +diff --git a/ld-elf2flt.c b/ld-elf2flt.c +index 75ee1bb..68b2a4a 100644 +--- a/ld-elf2flt.c ++++ b/ld-elf2flt.c +@@ -327,7 +327,7 @@ static int do_final_link(void) + /* riscv adds a global pointer symbol to the linker file with the + "RISCV_GP:" prefix. Remove the prefix for riscv64 architecture and + the entire line for other architectures. */ +- if (streq(TARGET_CPU, "riscv64")) ++ if (streq(TARGET_CPU, "riscv64") || streq(TARGET_CPU, "riscv32")) + append_sed(&sed, "^RISCV_GP:", ""); + else + append_sed(&sed, "^RISCV_GP:", NULL); +-- +2.38.1 + diff --git a/package/uclibc/0001-RISC-V-32-bit-support.patch b/package/uclibc/0001-RISC-V-32-bit-support.patch new file mode 100644 index 0000000000..038a23b0b1 --- /dev/null +++ b/package/uclibc/0001-RISC-V-32-bit-support.patch @@ -0,0 +1,145 @@ +From 537b2ef6350fdf7604d59bc2a50388cb98045d7f Mon Sep 17 00:00:00 2001 +From: Yimin Gu <ustcymgu@gmail.com> +Date: Mon, 1 Aug 2022 15:22:40 +0900 +Subject: [PATCH] uclibc: RISC-V 32-bit support + +Added 32-bit RISC-V support. With these changes, elf2flt patch +6055525082d1, and kernel patch 700b2f0ce371, no MMU rv32 buildroot +system can work without any noticable problem. + +There's no substantial code change except definations and config +options. + +Signed-off-by: Yimin Gu <ustcymgu@gmail.com> +--- + Rules.mak | 2 ++ + extra/Configs/Config.in | 9 +++++++++ + extra/Configs/Config.riscv32 | 14 ++++++++++++++ + libc/sysdeps/linux/riscv32 | 1 + + libc/sysdeps/linux/riscv64/bits/wordsize.h | 3 ++- + libc/sysdeps/linux/riscv64/sys/asm.h | 6 +++++- + 6 files changed, 33 insertions(+), 2 deletions(-) + create mode 100644 extra/Configs/Config.riscv32 + create mode 120000 libc/sysdeps/linux/riscv32 + +diff --git a/Rules.mak b/Rules.mak +index 3fb64c728..71a14fc38 100644 +--- a/Rules.mak ++++ b/Rules.mak +@@ -305,6 +305,7 @@ ifneq ($(TARGET_ARCH),c6x) + ifneq ($(TARGET_ARCH),h8300) + ifneq ($(TARGET_ARCH),arc) + ifneq ($(TARGET_ARCH),aarch64) ++ifneq ($(TARGET_ARCH),riscv32) + CPU_CFLAGS-y += -msoft-float + endif + endif +@@ -316,6 +317,7 @@ endif + endif + endif + endif ++endif + + ifeq ($(TARGET_ARCH),aarch64) + CPU_CFLAGS-y += -ftls-model=initial-exec +diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in +index a58ceb265..5e6af800d 100644 +--- a/extra/Configs/Config.in ++++ b/extra/Configs/Config.in +@@ -39,6 +39,7 @@ choice + default TARGET_or1k if DESIRED_TARGET_ARCH = "or1k" + default TARGET_powerpc if DESIRED_TARGET_ARCH = "powerpc" + default TARGET_riscv64 if DESIRED_TARGET_ARCH = "riscv64" ++ default TARGET_riscv32 if DESIRED_TARGET_ARCH = "riscv32" + default TARGET_sh if DESIRED_TARGET_ARCH = "sh" + default TARGET_sparc if DESIRED_TARGET_ARCH = "sparc" + default TARGET_sparc64 if DESIRED_TARGET_ARCH = "sparc64" +@@ -125,6 +126,9 @@ config TARGET_powerpc + config TARGET_riscv64 + bool "riscv64" + ++config TARGET_riscv32 ++ bool "riscv32" ++ + config TARGET_sh + bool "superh" + +@@ -240,6 +244,10 @@ if TARGET_riscv64 + source "extra/Configs/Config.riscv64" + endif + ++if TARGET_riscv32 ++source "extra/Configs/Config.riscv32" ++endif ++ + if TARGET_sh + source "extra/Configs/Config.sh" + endif +@@ -538,6 +546,7 @@ config UCLIBC_HAS_LINUXTHREADS + select UCLIBC_HAS_REALTIME + depends on !TARGET_aarch64 && \ + !TARGET_riscv64 && \ ++ !TARGET_riscv32 && \ + !TARGET_metag + help + If you want to compile uClibc with Linuxthreads support, then answer Y. +diff --git a/extra/Configs/Config.riscv32 b/extra/Configs/Config.riscv32 +new file mode 100644 +index 000000000..304d30f70 +--- /dev/null ++++ b/extra/Configs/Config.riscv32 +@@ -0,0 +1,14 @@ ++# ++# For a description of the syntax of this configuration file, ++# see extra/config/Kconfig-language.txt ++# ++ ++config TARGET_ARCH ++ string ++ default "riscv32" ++ ++config FORCE_OPTIONS_FOR_ARCH ++ bool ++ default y ++ select ARCH_LITTLE_ENDIAN ++ select ARCH_HAS_MMU +diff --git a/libc/sysdeps/linux/riscv32 b/libc/sysdeps/linux/riscv32 +new file mode 120000 +index 000000000..11677ef05 +--- /dev/null ++++ b/libc/sysdeps/linux/riscv32 +@@ -0,0 +1 @@ ++riscv64 +\ No newline at end of file +diff --git a/libc/sysdeps/linux/riscv64/bits/wordsize.h b/libc/sysdeps/linux/riscv64/bits/wordsize.h +index 67a16ba62..1fc649aad 100644 +--- a/libc/sysdeps/linux/riscv64/bits/wordsize.h ++++ b/libc/sysdeps/linux/riscv64/bits/wordsize.h +@@ -25,5 +25,6 @@ + #if __riscv_xlen == 64 + # define __WORDSIZE_TIME64_COMPAT32 1 + #else +-# error "rv32i-based targets are not supported" ++# define __WORDSIZE_TIME64_COMPAT32 1 ++// # warning "rv32i-based targets are experimental" + #endif +diff --git a/libc/sysdeps/linux/riscv64/sys/asm.h b/libc/sysdeps/linux/riscv64/sys/asm.h +index ddb84b683..3c94c9a70 100644 +--- a/libc/sysdeps/linux/riscv64/sys/asm.h ++++ b/libc/sysdeps/linux/riscv64/sys/asm.h +@@ -26,7 +26,11 @@ + # define REG_S sd + # define REG_L ld + #elif __riscv_xlen == 32 +-# error "rv32i-based targets are not supported" ++# define PTRLOG 2 ++# define SZREG 4 ++# define REG_S sw ++# define REG_L lw ++// # warning "rv32i-based targets are experimental" + #else + # error __riscv_xlen must equal 32 or 64 + #endif +-- +2.37.1 + diff --git a/package/uclibc/Config.in b/package/uclibc/Config.in index 2555487f06..a1e9305ca0 100644 --- a/package/uclibc/Config.in +++ b/package/uclibc/Config.in @@ -17,6 +17,7 @@ config BR2_PACKAGE_UCLIBC_ARCH_SUPPORTS default y if BR2_powerpc # see libc/sysdeps/linux/riscv64/sys/asm.h default y if BR2_RISCV_64 && (BR2_RISCV_ABI_LP64 || BR2_RISCV_ABI_LP64D) + default y if BR2_RISCV_32 default y if BR2_sh4 default y if BR2_sh4eb default y if BR2_sparc @@ -138,6 +139,7 @@ config BR2_UCLIBC_TARGET_ARCH default "i386" if BR2_i386 default "x86_64" if BR2_x86_64 default "riscv64" if BR2_RISCV_64 + default "riscv32" if BR2_RISCV_32 config BR2_UCLIBC_MIPS_ABI string

[1/1] arch/riscv: RISC-V 32-bit NO MMU support

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