int
default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+choice
+ prompt "Optimization level"
+ default CC_OPTIMIZE_FOR_SIZE
+
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size"
- default y
help
- Enabling this option will pass "-Os" instead of "-O2" to gcc
- resulting in a smaller U-Boot image.
+ Enabling this option will pass "-Os" to gcc, resulting in a smaller
+ U-Boot image.
This option is enabled by default for U-Boot.
+config CC_OPTIMIZE_FOR_SPEED
+ bool "Optimize for speed"
+ help
+ Enabling this option will pass "-O2" to gcc, resulting in a faster
+ U-Boot image.
+
+config CC_OPTIMIZE_FOR_DEBUG
+ bool "Optimize for debugging"
+ help
+ Enabling this option will pass "-Og" to gcc, enabling optimizations
+ which don't interfere with debugging.
+
+endchoice
+
config OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
help
Enabling this option will pass "--coverage" to gcc to compile
and link code instrumented for coverage analysis.
+config ASAN
+ bool "Enable AddressSanitizer"
+ depends on SANDBOX
+ help
+ Enables AddressSanitizer to discover out-of-bounds accesses,
+ use-after-free, double-free and memory leaks.
+
+config FUZZ
+ bool "Enable fuzzing"
+ depends on CC_IS_CLANG
+ depends on DM_FUZZING_ENGINE
+ select ASAN
+ help
+ Enables the fuzzing infrastructure to generate fuzzing data and run
+ fuzz tests.
+
config CC_HAS_ASM_INLINE
def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
Enables allocating and saving kernel cmdline in space between
"bootm_low" and "bootm_low" + BOOTMAPSZ.
+config SYS_BARGSIZE
+ int "Size of kernel command line buffer in bytes"
+ depends on SYS_BOOT_GET_CMDLINE
+ default 512
+ help
+ Buffer size for Boot Arguments which are passed to the application
+ (usually a Linux kernel) when it is booted
+
config SYS_BOOT_GET_KBD
bool "Enable kernel board information setup"
help
Enables allocating and saving a kernel copy of the bd_info in
space between "bootm_low" and "bootm_low" + BOOTMAPSZ.
+config HAS_CUSTOM_SYS_INIT_SP_ADDR
+ bool "Use a custom location for the initial stack pointer address"
+ depends on ARC || (ARM && !INIT_SP_RELATIVE) || MIPS || PPC || RISCV
+ default y if TFABOOT
+ help
+ Typically, we use an initial stack pointer address that is calculated
+ by taking the statically defined CFG_SYS_INIT_RAM_ADDR, adding the
+ statically defined CFG_SYS_INIT_RAM_SIZE and then subtracting the
+ build-time constant of GENERATED_GBL_DATA_SIZE. On MIPS a different
+ but statica calculation is performed. However, some platforms will
+ take a different approach. Say Y here to define the address statically
+ instead.
+
+config CUSTOM_SYS_INIT_SP_ADDR
+ hex "Static location for the initial stack pointer"
+ depends on HAS_CUSTOM_SYS_INIT_SP_ADDR
+ default TEXT_BASE if TFABOOT
+
config SYS_MALLOC_F
bool "Enable malloc() pool before relocation"
default y if DM
config SYS_MALLOC_F_LEN
hex "Size of malloc() pool before relocation"
depends on SYS_MALLOC_F
- default 0x1000 if AM33XX
- default 0x4000 if SANDBOX
- default 0x2000 if (ARCH_IMX8 || ARCH_IMX8M || ARCH_MX7 || \
- ARCH_MX7ULP || ARCH_MX6 || ARCH_MX5 || \
- ARCH_LS1012A || ARCH_LS1021A || ARCH_LS1043A || \
- ARCH_LS1046A || ARCH_QEMU || ARCH_SUNXI || ARCH_OWL)
- default 0x400
+ default 0x400 if M68K || PPC || ROCKCHIP_PX30 || ROCKCHIP_RK3036 || \
+ ROCKCHIP_RK3308 || ROCKCHIP_RV1108
+ default 0x600 if ARCH_ZYNQMP_R5 || ARCH_ZYNQMP
+ default 0x800 if ARCH_ZYNQ || ROCKCHIP_RK3128 || ROCKCHIP_RK3188 || \
+ ROCKCHIP_RK322X || X86
+ default 0x1000 if ARCH_MESON || ARCH_BMIPS || ARCH_MTMIPS
+ default 0x1800 if ARCH_TEGRA
+ default 0x4000 if SANDBOX || RISCV || ARCH_APPLE || ROCKCHIP_RK3368 || \
+ ROCKCHIP_RK3399
+ default 0x8000 if RCAR_GEN3
+ default 0x10000 if ARCH_IMX8 || ARCH_IMX8M
+ default 0x2000
help
Before relocation, memory is very limited on many platforms. Still,
we can provide a small malloc() pool if needed. Driver model in
config SYS_MALLOC_LEN
hex "Define memory for Dynamic allocation"
+ default 0x4000000 if SANDBOX
default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
default 0x200000 if ARCH_BMIPS || X86
- default 0x120000 if MACH_SUNIV
- default 0x220000 if MACH_SUN8I_V3S
- default 0x4020000 if ARCH_SUNXI
+ default 0x4020000 if SUNXI_MINIMUM_DRAM_MB >= 256
+ default 0x220000 if SUNXI_MINIMUM_DRAM_MB >= 64
+ default 0x120000 if SUNXI_MINIMUM_DRAM_MB >= 32
default 0x400000
help
This defines memory to be allocated for Dynamic allocation
config SPL_SYS_MALLOC_F_LEN
hex "Size of malloc() pool in SPL"
depends on SYS_MALLOC_F && SPL
+ default 0 if !SPL_FRAMEWORK
default 0x2800 if RCAR_GEN3
+ default 0x2000 if IMX8MQ
default SYS_MALLOC_F_LEN
help
In SPL memory is very limited on many platforms. Still,
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
- It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
+ It is possible to enable CFG_SYS_SPL_MALLOC_START to start a new
malloc() region in SDRAM once it is inited.
config TPL_SYS_MALLOC_F_LEN
particular needs this to operate, so that it can allocate the
initial serial device and any others that are needed.
+config VALGRIND
+ bool "Inform valgrind about memory allocations"
+ depends on !RISCV
+ help
+ Valgrind is an instrumentation framework for building dynamic analysis
+ tools. In particular, it may be used to detect memory management bugs
+ in U-Boot. It relies on knowing when heap blocks are allocated in
+ order to give accurate results. This happens automatically for
+ standard allocator functions provided by the host OS. However, this
+ doesn't automatically happen for U-Boot's malloc implementation.
+
+ Enable this option to annotate U-Boot's malloc implementation so that
+ it can be handled accurately by Valgrind. If you aren't planning on
+ using valgrind to debug U-Boot, say 'n'.
+
+config VPL_SYS_MALLOC_F_LEN
+ hex "Size of malloc() pool in VPL before relocation"
+ depends on SYS_MALLOC_F && VPL
+ default SYS_MALLOC_F_LEN
+ help
+ Before relocation, memory is very limited on many platforms. Still,
+ we can provide a small malloc() pool if needed. Driver model in
+ particular needs this to operate, so that it can allocate the
+ initial serial device and any others that are needed.
+
menuconfig EXPERT
bool "Configure standard U-Boot features (expert users)"
default y
string "Build target special images"
default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_ARRIA10
default "u-boot-with-spl.sfp" if TARGET_SOCFPGA_GEN5
- default "u-boot-spl.kwb" if ARCH_MVEBU && SPL
+ default "u-boot-with-spl.kwb" if ARMADA_32BIT && SPL
default "u-boot-elf.srec" if RCAR_GEN3
default "u-boot.itb" if !BINMAN && SPL_LOAD_FIT && (ARCH_ROCKCHIP || \
ARCH_SUNXI || RISCV || ARCH_ZYNQMP)
- default "u-boot.kwb" if ARCH_KIRKWOOD
+ default "u-boot.kwb" if (ARCH_KIRKWOOD || ARMADA_32BIT) && !SPL
+ default "u-boot-with-spl.bin" if MPC85xx && !E500MC && !E5500 && !E6500 && SPL
default "u-boot-with-spl.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
default "u-boot-with-spl.imx" if ARCH_MX6 && SPL
help
special image will be automatically built upon calling
make / buildman.
+config HAS_BOARD_SIZE_LIMIT
+ bool "Define a maximum size for the U-Boot image"
+ default y if RCAR_GEN3
+ help
+ In some cases, we need to enforce a hard limit on how big the U-Boot
+ image itself can be.
+
+config BOARD_SIZE_LIMIT
+ int "Maximum size of the U-Boot image in bytes"
+ default 1048576 if RCAR_GEN3
+ depends on HAS_BOARD_SIZE_LIMIT
+ help
+ Maximum size of the U-Boot image. When defined, the build system
+ checks that the actual size does not exceed it. This does not
+ include SPL nor TPL, on platforms that use that functionality, they
+ have a separate option to restict size.
+
config SYS_CUSTOM_LDSCRIPT
bool "Use a custom location for the U-Boot linker script"
help
config STACK_SIZE
hex "Define max stack size that can be used by U-Boot"
- default 0x4000000 if ARCH_VERSAL || ARCH_ZYNQMP
+ default 0x4000000 if ARCH_VERSAL_NET || ARCH_VERSAL || ARCH_ZYNQMP
default 0x200000 if MICROBLAZE
default 0x1000000
help
by the UEFI sub-system. On some boards initrd_high is calculated as
base stack pointer minus this stack size.
+config SYS_MEM_TOP_HIDE
+ hex "Exclude some memory from U-Boot / OS information"
+ default 0x0
+ help
+ If set, this specified memory area will get subtracted from the top
+ (end) of RAM and won't get "touched" at all by U-Boot. By fixing up
+ gd->ram_size the OS / next stage should gets passed the now
+ "corrected" memory size and won't touch it either.
+ WARNING: Please make sure that this value is a multiple of the OS
+ page size.
+
config SYS_HAS_SRAM
bool
default y if TARGET_PIC32MZDASK
default 0x10000 if TARGET_TRICORDER
default 0x0
+config SYS_MONITOR_LEN
+ int "Maximum size in bytes reserved for U-Boot in memory"
+ default 1048576 if X86
+ default 786432 if ARCH_SUNXI
+ default 0
+ help
+ Size of memory reserved for monitor code, used to determine
+ _at_compile_time_ (!) if the environment is embedded within the
+ U-Boot image, or in a separate flash sector, among other uses where
+ we need to set a maximum size of the U-Boot binary itself that will
+ be loaded.
+
config MP
bool "Support for multiprocessor"
help
projects / J-u-boot.git / blobdiff