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u-boot/configs/sandbox_defconfig
Simon Glass 0534d866ec sandbox: Enable CONFIG_FS_EXT4L 
Enable the new ext4l filesystem (Linux ext4 port) for sandbox testing.

Series-to: concept
Series-cc: heinrich
Cover-letter:
ext4l: Add write support (part L)
This series adds write support to the new ext4l filesystem driver,
supporting file creation, modification, and deletion.

The main additions are:
- File write with journalling support
- File deletion (unlink)
- Directory creation (mkdir)
- Symbolic link creation (ln)
- File and directory rename

Infrastructure improvements include proper cleanup of journal references
when unmounting, safeguards to handle probe without explicit close, and
prevention of use-after-free issues with buffer_heads that have active
journal_heads.

Unlike Linux, which does not need to meticulously free every resource on
unmount (since it can do so later as needed), U-Boot must fully clean up.
The bootloader may mount and unmount filesystems multiple times during a
session, such as loading a kernel from one partition and a device tree
from another, or when running tests. Memory leaks accumulate and cause
failures, so ext4l includes extra cleanup code that the Linux ext4 driver
does not require.

The series also enables ext4l for sandbox testing and allows the use of
metadata_csum checksums which the existing ext4 driver does not support.

Some other tweaks are included:
- a fix for mcheck to avoid filling up pre-relocation malloc()
- use the correct logo for readthedocs
- add a flag to avoid using the video console in tests
- a fallback option for finding persistent data-dir

At this point ext4l is useable, but there is more work needed,
including:

- Add MAINTAINERS entry
- Add more Kconfig options for various features (to reduce code size)
- Enable for ARM and x86 targets
- Documentation
- Tests for failure cases (to check that the journal is doing its job)
END

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
Series-links: 1:98
2026-01-01 17:15:29 -07:00

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CONFIG_TEXT_BASE=0
CONFIG_SYS_MALLOC_LEN=0x8000000
CONFIG_BLOBLIST_SIZE_RELOC=0x20000
CONFIG_NR_DRAM_BANKS=1
CONFIG_ENV_SIZE=0x2000
CONFIG_DEFAULT_DEVICE_TREE="sandbox"
CONFIG_DM_RESET=y
CONFIG_SYS_LOAD_ADDR=0x0
CONFIG_PRE_CON_BUF_ADDR=0xf0000
CONFIG_PCI=y
CONFIG_DEBUG_UART=y
CONFIG_SYS_MEMTEST_START=0x00100000
CONFIG_SYS_MEMTEST_END=0x00101000
CONFIG_ULIB=y
CONFIG_MCHECK_HEAP_PROTECTION=y
CONFIG_EXAMPLES=y
CONFIG_EFI_SECURE_BOOT=y
CONFIG_EFI_RT_VOLATILE_STORE=y
CONFIG_EFI_RUNTIME_UPDATE_CAPSULE=y
CONFIG_EFI_CAPSULE_ON_DISK=y
CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y
CONFIG_EFI_CAPSULE_AUTHENTICATE=y
CONFIG_EFI_CAPSULE_CRT_FILE="board/sandbox/capsule_pub_key_good.crt"
CONFIG_EFI_LOG=y
CONFIG_BUTTON_CMD=y
CONFIG_FIT=y
CONFIG_FIT_RSASSA_PSS=y
CONFIG_FIT_CIPHER=y
CONFIG_FIT_VERBOSE=y
CONFIG_BOOTM_OPENRTOS=y
CONFIG_BOOTM_OSE=y
CONFIG_BOOTMETH_ANDROID=y
CONFIG_UPL=y
CONFIG_LEGACY_IMAGE_FORMAT=y
CONFIG_MEASURED_BOOT=y
CONFIG_BOOTSTAGE=y
CONFIG_BOOTSTAGE_REPORT=y
CONFIG_BOOTSTAGE_RECORD_COUNT=50
CONFIG_BOOTSTAGE_FDT=y
CONFIG_BOOTSTAGE_STASH=y
CONFIG_BOOTSTAGE_STASH_SIZE=0x4096
CONFIG_AUTOBOOT_KEYED=y
CONFIG_AUTOBOOT_PROMPT="Enter password \"a\" in %d seconds to stop autoboot\n"
CONFIG_AUTOBOOT_ENCRYPTION=y
CONFIG_AUTOBOOT_SHA256_FALLBACK=y
CONFIG_AUTOBOOT_NEVER_TIMEOUT=y
CONFIG_AUTOBOOT_STOP_STR_ENABLE=y
CONFIG_AUTOBOOT_STOP_STR_CRYPT="$5$rounds=640000$HrpE65IkB8CM5nCL$BKT3QdF98Bo8fJpTr9tjZLZQyzqPASBY20xuK5Rent9"
CONFIG_IMAGE_PRE_LOAD=y
CONFIG_IMAGE_PRE_LOAD_SIG=y
CONFIG_CEDIT=y
CONFIG_CONSOLE_RECORD=y
CONFIG_CONSOLE_RECORD_OUT_SIZE=0x20000
CONFIG_PRE_CONSOLE_BUFFER=y
CONFIG_LOG=y
CONFIG_LOG_MAX_LEVEL=9
CONFIG_LOG_DEFAULT_LEVEL=6
CONFIG_LOGF_FUNC=y
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_STACKPROTECTOR=y
CONFIG_ANDROID_AB=y
CONFIG_CMD_CPU=y
CONFIG_CMD_UFETCH=y
CONFIG_CMD_LICENSE=y
CONFIG_CMD_SMBIOS=y
CONFIG_CMD_BOOTM_PRE_LOAD=y
CONFIG_CMD_BOOTZ=y
CONFIG_CMD_BOOTEFI_HELLO=y
CONFIG_CMD_BOOTMENU=y
CONFIG_CMD_ABOOTIMG=y
CONFIG_CMD_ASKENV=y
CONFIG_CMD_GREPENV=y
CONFIG_CMD_ERASEENV=y
CONFIG_CMD_ENV_CALLBACK=y
CONFIG_CMD_ENV_FLAGS=y
CONFIG_CMD_NVEDIT_EFI=y
CONFIG_CMD_NVEDIT_INFO=y
CONFIG_CMD_NVEDIT_LOAD=y
CONFIG_CMD_NVEDIT_SELECT=y
CONFIG_LOOPW=y
CONFIG_CMD_MD5SUM=y
CONFIG_CMD_MEM_SEARCH=y
CONFIG_CMD_MX_CYCLIC=y
CONFIG_CMD_MEMTEST=y
CONFIG_CMD_CLK=y
CONFIG_CMD_DEMO=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPIO_READ=y
CONFIG_CMD_PWM=y
CONFIG_CMD_GPT=y
CONFIG_CMD_GPT_RENAME=y
CONFIG_CMD_IDE=y
CONFIG_CMD_I2C=y
CONFIG_CMD_LOADM=y
CONFIG_CMD_LSBLK=y
CONFIG_CMD_MTD=y
CONFIG_CMD_MUX=y
CONFIG_CMD_OSD=y
CONFIG_CMD_PCI=y
CONFIG_CMD_PCI_MPS=y
CONFIG_CMD_READ=y
CONFIG_CMD_REMOTEPROC=y
CONFIG_CMD_SPI=y
CONFIG_CMD_TEMPERATURE=y
CONFIG_CMD_USB=y
CONFIG_CMD_RKMTD=y
CONFIG_CMD_WDT=y
CONFIG_CMD_WRITE=y
CONFIG_CMD_AXI=y
CONFIG_CMD_CAT=y
CONFIG_CMD_SETEXPR_FMT=y
CONFIG_CMD_XXD=y
CONFIG_CMD_DHCP6=y
CONFIG_BOOTP_DNS2=y
CONFIG_CMD_PCAP=y
CONFIG_CMD_TFTPPUT=y
CONFIG_CMD_TFTPSRV=y
CONFIG_CMD_RARP=y
CONFIG_CMD_CDP=y
CONFIG_CMD_SNTP=y
CONFIG_CMD_LINK_LOCAL=y
CONFIG_IPV6_ROUTER_DISCOVERY=y
CONFIG_CMD_ETHSW=y
CONFIG_CMD_DNS=y
CONFIG_CMD_2048=y
CONFIG_CMD_BMP=y
CONFIG_CMD_BOOTCOUNT=y
CONFIG_CMD_EFIDEBUG=y
CONFIG_CMD_RTC=y
CONFIG_CMD_TIME=y
CONFIG_CMD_PAUSE=y
CONFIG_CMD_TIMER=y
CONFIG_CMD_SOUND=y
CONFIG_CMD_QFW=y
CONFIG_CMD_PSTORE=y
CONFIG_CMD_PSTORE_MEM_ADDR=0x3000000
CONFIG_CMD_BOOTSTAGE=y
CONFIG_CMD_PMIC=y
CONFIG_CMD_REGULATOR=y
CONFIG_CMD_AES=y
CONFIG_CMD_TPM=y
CONFIG_CMD_TPM_TEST=y
CONFIG_CMD_SCMI=y
CONFIG_CMD_BTRFS=y
CONFIG_CMD_CBFS=y
CONFIG_CMD_CRAMFS=y
CONFIG_CMD_EROFS=y
CONFIG_CMD_EXT4_WRITE=y
CONFIG_CMD_SQUASHFS=y
CONFIG_CMD_MTDPARTS=y
CONFIG_CMD_STACKPROTECTOR_TEST=y
CONFIG_MAC_PARTITION=y
CONFIG_OF_CONTROL=y
CONFIG_OF_LIVE=y
CONFIG_ENV_IS_NOWHERE=y
CONFIG_ENV_IS_IN_EXT4=y
CONFIG_ENV_EXT4_INTERFACE="host"
CONFIG_ENV_EXT4_DEVICE_AND_PART="0:0"
CONFIG_ENV_IMPORT_FDT=y
CONFIG_BOOTP_SEND_HOSTNAME=y
CONFIG_NETCONSOLE=y
CONFIG_IP_DEFRAG=y
CONFIG_BOOTP_SERVERIP=y
CONFIG_IPV6=y
CONFIG_DM_DMA=y
CONFIG_DEBUG_DEVRES=y
CONFIG_SIMPLE_PM_BUS=y
CONFIG_ADC=y
CONFIG_ADC_SANDBOX=y
CONFIG_AXI=y
CONFIG_AXI_SANDBOX=y
CONFIG_SYS_IDE_MAXBUS=1
CONFIG_SYS_ATA_BASE_ADDR=0x100
CONFIG_SYS_ATA_STRIDE=4
CONFIG_SYS_ATA_DATA_OFFSET=0
CONFIG_SYS_ATA_REG_OFFSET=1
CONFIG_SYS_ATA_ALT_OFFSET=2
CONFIG_SYS_ATA_IDE0_OFFSET=0
CONFIG_BLK_LUKS=y
CONFIG_BOOTCOUNT_LIMIT=y
CONFIG_DM_BOOTCOUNT=y
CONFIG_DM_BOOTCOUNT_RTC=y
CONFIG_DM_BOOTCOUNT_I2C_EEPROM=y
CONFIG_DM_BOOTCOUNT_SYSCON=y
CONFIG_BUTTON_ADC=y
CONFIG_BUTTON_GPIO=y
CONFIG_CLK=y
CONFIG_CLK_COMPOSITE_CCF=y
CONFIG_CLK_K210=y
CONFIG_CLK_K210_SET_RATE=y
CONFIG_SANDBOX_CLK_CCF=y
CONFIG_CLK_SCMI=y
CONFIG_CPU=y
CONFIG_DM_DEMO=y
CONFIG_DM_DEMO_SIMPLE=y
CONFIG_DM_DEMO_SHAPE=y
CONFIG_DFU_SF=y
CONFIG_DMA=y
CONFIG_DMA_CHANNELS=y
CONFIG_SANDBOX_DMA=y
CONFIG_FASTBOOT_FLASH=y
CONFIG_FASTBOOT_FLASH_MMC_DEV=0
CONFIG_ARM_FFA_TRANSPORT=y
CONFIG_GPIO_HOG=y
CONFIG_DM_GPIO_LOOKUP_LABEL=y
CONFIG_QCOM_PMIC_GPIO=y
CONFIG_SANDBOX_GPIO=y
CONFIG_DM_HWSPINLOCK=y
CONFIG_HWSPINLOCK_SANDBOX=y
CONFIG_I2C_CROS_EC_TUNNEL=y
CONFIG_I2C_CROS_EC_LDO=y
CONFIG_DM_I2C_GPIO=y
CONFIG_I2C_MUX=y
CONFIG_I2C_ARB_GPIO_CHALLENGE=y
CONFIG_CROS_EC_KEYB=y
CONFIG_I8042_KEYB=y
CONFIG_IOMMU=y
CONFIG_LED=y
CONFIG_LED_BLINK=y
CONFIG_LED_GPIO=y
CONFIG_DM_MAILBOX=y
CONFIG_SANDBOX_MBOX=y
CONFIG_MISC=y
CONFIG_NVMEM=y
CONFIG_CROS_EC=y
CONFIG_CROS_EC_I2C=y
CONFIG_CROS_EC_LPC=y
CONFIG_CROS_EC_SANDBOX=y
CONFIG_CROS_EC_SPI=y
CONFIG_P2SB=y
CONFIG_PWRSEQ=y
CONFIG_I2C_EEPROM=y
CONFIG_MMC_PCI=y
CONFIG_MMC_SANDBOX=y
CONFIG_MMC_SDHCI=y
CONFIG_DM_MTD=y
CONFIG_MTD_RAW_NAND=y
CONFIG_SYS_MAX_NAND_DEVICE=8
CONFIG_SYS_NAND_USE_FLASH_BBT=y
CONFIG_NAND_SANDBOX=y
CONFIG_SYS_NAND_ONFI_DETECTION=y
CONFIG_SYS_NAND_PAGE_SIZE=0x200
CONFIG_SPI_FLASH_SANDBOX=y
CONFIG_BOOTDEV_SPI_FLASH=y
CONFIG_SPI_FLASH_ATMEL=y
CONFIG_SPI_FLASH_EON=y
CONFIG_SPI_FLASH_GIGADEVICE=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_SPANSION=y
CONFIG_SPI_FLASH_STMICRO=y
CONFIG_SPI_FLASH_SST=y
CONFIG_SPI_FLASH_WINBOND=y
CONFIG_NVMXIP_QSPI=y
CONFIG_MULTIPLEXER=y
CONFIG_MUX_MMIO=y
CONFIG_NVME_PCI=y
CONFIG_PCI_REGION_MULTI_ENTRY=y
CONFIG_PCI_FTPCI100=y
CONFIG_PCI_SANDBOX=y
CONFIG_PHY=y
CONFIG_PHY_SANDBOX=y
CONFIG_PINCTRL=y
CONFIG_PINCONF=y
CONFIG_PINCTRL_SANDBOX=y
CONFIG_PINCTRL_SINGLE=y
CONFIG_POWER_DOMAIN=y
CONFIG_SANDBOX_POWER_DOMAIN=y
CONFIG_SCMI_POWER_DOMAIN=y
CONFIG_DM_PMIC=y
CONFIG_PMIC_ACT8846=y
CONFIG_DM_PMIC_PFUZE100=y
CONFIG_DM_PMIC_MAX77686=y
CONFIG_DM_PMIC_MC34708=y
CONFIG_PMIC_QCOM=y
CONFIG_PMIC_RK8XX=y
CONFIG_PMIC_S2MPS11=y
CONFIG_DM_PMIC_SANDBOX=y
CONFIG_PMIC_S5M8767=y
CONFIG_PMIC_TPS65090=y
CONFIG_DM_REGULATOR=y
CONFIG_REGULATOR_ACT8846=y
CONFIG_DM_REGULATOR_PFUZE100=y
CONFIG_DM_REGULATOR_MAX77686=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_REGULATOR_RK8XX=y
CONFIG_REGULATOR_S5M8767=y
CONFIG_DM_REGULATOR_SANDBOX=y
CONFIG_REGULATOR_TPS65090=y
CONFIG_DM_REGULATOR_SCMI=y
CONFIG_DM_PWM=y
CONFIG_PWM_CROS_EC=y
CONFIG_PWM_SANDBOX=y
CONFIG_RAM=y
CONFIG_DM_REBOOT_MODE=y
CONFIG_DM_REBOOT_MODE_GPIO=y
CONFIG_DM_REBOOT_MODE_RTC=y
CONFIG_REMOTEPROC_SANDBOX=y
CONFIG_SANDBOX_RESET=y
CONFIG_RESET_SYSCON=y
CONFIG_RESET_SCMI=y
CONFIG_DM_RTC=y
CONFIG_RTC_MAX313XX=y
CONFIG_RTC_RV8803=y
CONFIG_RTC_HT1380=y
CONFIG_SCSI=y
CONFIG_SANDBOX_SERIAL=y
CONFIG_SM=y
CONFIG_SOUND=y
CONFIG_SOUND_DA7219=y
CONFIG_SOUND_MAX98357A=y
CONFIG_SOUND_SANDBOX=y
CONFIG_SOC_DEVICE=y
CONFIG_SANDBOX_SPI=y
CONFIG_SPMI=y
CONFIG_SPMI_SANDBOX=y
CONFIG_SYSINFO=y
CONFIG_SYSINFO_SANDBOX=y
CONFIG_SYSINFO_GPIO=y
CONFIG_SYSRESET=y
CONFIG_DM_THERMAL=y
CONFIG_TIMER=y
CONFIG_TIMER_EARLY=y
CONFIG_SANDBOX_TIMER=y
CONFIG_USB=y
CONFIG_DM_USB_GADGET=y
CONFIG_USB_EMUL=y
CONFIG_USB_KEYBOARD=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_DOWNLOAD=y
CONFIG_USB_ETHER=y
CONFIG_USB_ETH_CDC=y
CONFIG_VIDEO=y
CONFIG_VIDEO_FONT_SUN12X22=y
CONFIG_VIDEO_COPY=y
CONFIG_CONSOLE_ROTATION=y
CONFIG_CONSOLE_TRUETYPE=y
CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y
CONFIG_CONSOLE_TRUETYPE_UBUNTU_LIGHT=y
CONFIG_CONSOLE_TRUETYPE_UBUNTU_BOLD=y
CONFIG_I2C_EDID=y
CONFIG_VIDEO_SANDBOX_SDL=y
CONFIG_VIDEO_DSI_HOST_SANDBOX=y
CONFIG_OSD=y
CONFIG_SANDBOX_OSD=y
CONFIG_BMP_16BPP=y
CONFIG_BMP_24BPP=y
CONFIG_VIRTIO_BLK=y
CONFIG_W1=y
CONFIG_W1_GPIO=y
CONFIG_W1_EEPROM=y
CONFIG_W1_EEPROM_SANDBOX=y
# CONFIG_WATCHDOG_AUTOSTART is not set
CONFIG_WDT=y
CONFIG_WDT_GPIO=y
CONFIG_WDT_SANDBOX=y
CONFIG_WDT_ALARM_SANDBOX=y
CONFIG_WDT_FTWDT010=y
CONFIG_FS_CBFS=y
CONFIG_FS_EXFAT=y
CONFIG_FS_CRAMFS=y
CONFIG_FS_EXT4L=y
CONFIG_EXT4_WRITE=y
CONFIG_ADDR_MAP=y
CONFIG_PANIC_HANG=y
CONFIG_CMD_DHRYSTONE=y
CONFIG_MBEDTLS_LIB=y
CONFIG_ECDSA=y
CONFIG_ECDSA_VERIFY=y
CONFIG_TPM=y
CONFIG_ERRNO_STR=y
CONFIG_GETOPT=y
CONFIG_ARGON2=y
CONFIG_BACKTRACE=y
CONFIG_TEST_FDTDEC=y
CONFIG_UNIT_TEST=y
CONFIG_UT_BOOTCTL=y
CONFIG_UT_TIME=y
CONFIG_UT_DM=y
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