which is done within the script "scripts/setlocalversion".)
+config CC_IS_GCC
+ def_bool $(success,$(CC) --version | head -n 1 | grep -q gcc)
+
+config GCC_VERSION
+ int
+ default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC
+ default 0
+
+config CC_IS_CLANG
+ def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
+
+config CLANG_VERSION
+ int
+ default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size"
default y
config OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline' in full U-Boot"
- default n
help
This option determines if U-Boot forces gcc to inline the functions
developers have marked 'inline'. Doing so takes away freedom from gcc to
config SPL_OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline' in SPL"
depends on SPL
- default n
help
This option determines if U-Boot forces gcc to inline the functions
developers have marked 'inline'. Doing so takes away freedom from gcc to
do what it thinks is best, which is desirable in some cases for size
reasons.
+config ARCH_SUPPORTS_LTO
+ bool
+
+config LTO
+ bool "Enable Link Time Optimizations"
+ depends on ARCH_SUPPORTS_LTO
+ help
+ This option enables Link Time Optimization (LTO), a mechanism which
+ allows the compiler to optimize between different compilation units.
+
+ This can optimize away dead code paths, resulting in smaller binary
+ size (if CC_OPTIMIZE_FOR_SIZE is enabled).
+
+ This option is not available for every architecture and may
+ introduce bugs.
+
+ Currently, when compiling with GCC, due to a weird bug regarding
+ jobserver, the final linking will not respect make's --jobs argument.
+ Instead all available processors will be used (as reported by the
+ nproc command).
+
+ If unsure, say n.
+
config TPL_OPTIMIZE_INLINING
bool "Allow compiler to uninline functions marked 'inline' in TPL"
depends on TPL
- default n
help
This option determines if U-Boot forces gcc to inline the functions
developers have marked 'inline'. Doing so takes away freedom from gcc to
hex "Size of malloc() pool before relocation"
depends on SYS_MALLOC_F
default 0x1000 if AM33XX
- default 0x2800 if SANDBOX
+ 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_LS1046A || ARCH_QEMU || ARCH_SUNXI || ARCH_OWL)
default 0x400
help
Before relocation, memory is very limited on many platforms. Still,
config SYS_MALLOC_LEN
hex "Define memory for Dynamic allocation"
- depends on ARCH_ZYNQ || ARCH_VERSAL || ARCH_STM32MP || ARCH_ROCKCHIP
- default 0x2000000 if ARCH_ROCKCHIP
+ default 0x2000000 if ARCH_ROCKCHIP || ARCH_OMAP2PLUS || ARCH_MESON
+ default 0x4020000 if ARCH_SUNXI && !MACH_SUN8I_V3S
+ default 0x200000 if ARCH_BMIPS || X86
+ default 0x220000 if ARCH_SUNXI && MACH_SUN8I_V3S
+ default 0x400000
help
This defines memory to be allocated for Dynamic allocation
TODO: Use for other architectures
config SPL_SYS_MALLOC_F_LEN
- hex "Size of malloc() pool in SPL before relocation"
+ hex "Size of malloc() pool in SPL"
depends on SYS_MALLOC_F && SPL
default 0x2800 if RCAR_GEN3
default SYS_MALLOC_F_LEN
help
- Before relocation, memory is very limited on many platforms. Still,
+ In SPL 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.
+ It is possible to enable CONFIG_SYS_SPL_MALLOC_START to start a new
+ malloc() region in SDRAM once it is inited.
+
config TPL_SYS_MALLOC_F_LEN
- hex "Size of malloc() pool in TPL before relocation"
+ hex "Size of malloc() pool in TPL"
depends on SYS_MALLOC_F && TPL
- default SYS_MALLOC_F_LEN
+ default SPL_SYS_MALLOC_F_LEN
help
- Before relocation, memory is very limited on many platforms. Still,
+ In TPL 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.
config SYS_MALLOC_DEFAULT_TO_INIT
bool "Default malloc to init while reserving the memory for it"
- default n
help
It may happen that one needs to move the dynamic allocation
from one to another memory range, eg. when moving the malloc
Enables building of a u-boot.rom target. This collects U-Boot and
any necessary binary blobs.
-config ROM_NEEDS_BLOBS
- bool
- depends on HAS_ROM
- help
- Enable this if building the u-boot.rom target needs binary blobs, and
- so cannot be done normally. In this case, U-Boot will only build the
- ROM if the required blobs exist. If not, you will see an warning like:
-
- Image 'main-section' is missing external blobs and is non-functional:
- intel-descriptor intel-me intel-refcode intel-vga intel-mrc
-
-config BUILD_ROM
- bool "Build U-Boot as BIOS replacement"
- depends on HAS_ROM
- default y if !ROM_NEEDS_BLOBS
- help
- This option allows to build a ROM version of U-Boot.
- The build process generally requires several binary blobs
- which are not shipped in the U-Boot source tree.
- Please, see doc/arch/x86.rst for details.
-
config SPL_IMAGE
string "SPL image used in the combined SPL+U-Boot image"
default "spl/boot.bin" if ARCH_AT91 && SPL_NAND_SUPPORT
Path within the source tree to the linker script to use for the
main U-Boot binary.
+config SYS_LOAD_ADDR
+ hex "Address in memory to use by default"
+ default 0x01000000 if ARCH_SOCFPGA
+ default 0x02000000 if PPC || X86
+ default 0x22000000 if MACH_SUN9I
+ default 0x42000000 if ARCH_SUNXI && !MACH_SUN9I
+ default 0x82000000 if ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_K3
+ default 0x82000000 if ARCH_MX6 && (MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
+ default 0x12000000 if ARCH_MX6 && !(MX6SL || MX6SLL || MX6SX || MX6UL || MX6ULL)
+ default 0x80800000 if ARCH_MX7
+ default 0x90000000 if FSL_LSCH2 || FSL_LSCH3
+ help
+ Address in memory to use as the default safe load address.
+
config ERR_PTR_OFFSET
hex
default 0x0
default y if TARGET_PIC32MZDASK
default y if TARGET_DEVKIT8000
default y if TARGET_TRICORDER
- default n
help
Enable this to allow support for the on board SRAM.
SRAM base address is controlled by CONFIG_SYS_SRAM_BASE.
source "api/Kconfig"
+source "boot/Kconfig"
+
source "common/Kconfig"
source "cmd/Kconfig"
source "lib/Kconfig"
source "test/Kconfig"
+
+source "tools/Kconfig"
projects / J-u-boot.git / blobdiff