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u-boot/arch/arm/include/asm
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Simon Glass a55014d09b Makefile: Allow LTO to be disabled for a build 
LTO (Link-Time Optimisation) is an very useful feature which can
significantly reduce the size of U-Boot binaries. So far it has been
made available for selected ARM boards and sandbox.

However, incremental builds are much slower when LTO is used. For example,
an incremental build of sandbox takes 2.1 seconds on my machine, but 6.7
seconds with LTO enabled.

Add a NO_LTO parameter to the build, similar to NO_SDL, so it can be
disabled during development if needed, for faster builds.

Add some documentation about LTO while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-09-02 16:20:11 -04:00
..
arch-am33xx clk: ti: add am33xx/am43xx spread spectrum clock support 2021-10-11 14:27:32 -04:00
arch-apple arm: apple: nvme: Add SART support and RTKit buffer management 2022-06-23 08:24:49 -04:00
arch-armada8k SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-armv7 SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-aspeed ast2600: spl: Add boot mode detection 2022-06-22 21:30:05 -04:00
arch-bcm235xx SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-bcm281xx SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-bcmcygnus Convert CONFIG_PHY_RESET_DELAY to Kconfig 2022-03-25 12:01:15 +00:00
arch-bcmns3 board: ns3: add api to save boot parameters passed from BL31 2020-07-29 10:13:41 -04:00
arch-bcmnsp SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-fsl-layerscape Convert CONFIG_SYS_FSL_QMAN_V3 et al to Kconfig 2022-08-12 16:10:49 -04:00
arch-hi3660 common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
arch-hi3798cv200 poplar: clean up board level mmc initialization code 2019-01-25 12:12:57 -05:00
arch-hi6220 doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
arch-imx imx: add basic i.MX9 support 2022-07-26 11:29:00 +02:00
arch-imx8 Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-imx8m Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-imx8ulp misc: imx: S400_API: Move S400 MU and API to a common place 2022-07-26 11:29:00 +02:00
arch-imx9 board: freescale: imx93_evk: support ethernet 2022-07-26 11:29:01 +02:00
arch-imxrt clk: imxrt: Use dts for anatop base address 2022-04-12 21:08:23 +02:00
arch-lpc32xx net: lpc32xx_eth.c ethernet driver 2022-08-20 21:18:15 -04:00
arch-ls102xa Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-mediatek mediatek: Drop dm.h header file 2020-08-03 22:19:54 -04:00
arch-meson arm: meson: remove static ethernet link setup 2021-04-06 11:10:29 +02:00
arch-mvebu km/spi: remove deprecated SPI flash driver code for KM Kirkwood boards 2019-07-11 10:58:03 +02:00
arch-mx5 WS cleanup: remove SPACE(s) followed by TAB 2021-09-30 09:08:16 -04:00
arch-mx6 Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-mx7 Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-mx7ulp Convert CONFIG_SYS_FSL_MAX_NUM_OF_SEC to Kconfig 2022-08-12 16:10:49 -04:00
arch-mx27 ARM: imx: imx27: Introduce and use UART_BASE_ADDR(n) 2022-05-20 09:03:01 +02:00
arch-mx31 ARM: imx: imx31: Introduce and use UART_BASE_ADDR(n) 2022-05-20 09:03:01 +02:00
arch-mxs treewide: convert bd_t to struct bd_info by coccinelle 2020-07-17 09:30:13 -04:00
arch-npcm7xx misc: nuvoton: Add NPCM7xx otp controller driver 2022-06-22 21:30:05 -04:00
arch-octeontx arm: octeontx: Add headers for OcteonTX 2020-08-25 08:01:16 +02:00
arch-octeontx2 arm: octeontx2: Add headers for OcteonTX2 2020-08-25 08:01:16 +02:00
arch-omap3 arm: omap3: Make some memory functions static and clean headers 2022-02-21 08:35:40 -05:00
arch-omap4 arm: omap2plus: Move CONFIG_SYS_PTV out of CONFIG namespace 2022-06-06 12:09:00 -04:00
arch-omap5 arm: omap2plus: Move CONFIG_SYS_PTV out of CONFIG namespace 2022-06-06 12:09:00 -04:00
arch-orion5x SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-owl net: designware: s700: Add glue code for S700 mac 2020-07-07 17:11:58 -04:00
arch-px30 rockchip: add px30 architecture core 2019-11-17 17:23:24 +08:00
arch-rk322x rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3036 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3066 rockchip: rk3066: add core support 2022-04-18 11:25:13 +08:00
arch-rk3128 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3188 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3288 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3308 arm: Don't include common.h in header files 2020-05-18 14:54:24 -04:00
arch-rk3328 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3368 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3399 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-rk3568 rockchip: Add rk3568 architecture core 2021-06-18 14:36:24 +08:00
arch-rockchip rockchip: rk3066: add clock driver for rk3066 soc 2022-04-18 11:25:13 +08:00
arch-rv1108 rockchip: add common header boot0.h and gpio.h for soc 2019-05-08 17:34:12 +08:00
arch-stih410 treewide: Update email address Patrick Delaunay and Patrice Chotard 2020-12-09 10:57:50 +01:00
arch-stm32 gpio: stm32: create include file for driver private data 2021-11-10 17:03:36 +01:00
arch-stm32f4 gpio: stm32: create include file for driver private data 2021-11-10 17:03:36 +01:00
arch-stm32f7 gpio: stm32: create include file for driver private data 2021-11-10 17:03:36 +01:00
arch-stm32h7 gpio: stm32: create include file for driver private data 2021-11-10 17:03:36 +01:00
arch-stv0991 Convert CONFIG_SYS_HZ to Kconfig 2021-11-05 11:23:29 -04:00
arch-sunxi sunxi: prcm: Add a few registers 2022-04-04 23:24:17 +01:00
arch-tegra doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
arch-tegra20 doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
arch-tegra30 ARM: tegra: Use common header for PMU declarations 2019-06-05 09:16:33 -07:00
arch-tegra114 ARM: tegra: Use common header for PMU declarations 2019-06-05 09:16:33 -07:00
arch-tegra124 doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
arch-tegra186 SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
arch-tegra210 ARM: tegra: Use common header for PMU declarations 2019-06-05 09:16:33 -07:00
arch-vf610 WS cleanup: remove SPACE(s) followed by TAB 2021-09-30 09:08:16 -04:00
armv8 armv8: always use current exception level for TCR_ELx access 2022-06-16 15:22:55 -04:00
iproc-common configs: migrate CONFIG_SYS_ARM_CACHE_* in Kconfig 2020-05-01 11:34:01 -04:00
kona-common SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
mach-imx misc: S400_API: Rename imx8ulp_s400_msg to sentinel_msg 2022-07-26 11:29:01 +02:00
proc-armv arm: Remove strongarm support 2022-07-08 17:57:33 -04:00
ti-common nand.h: Cleanup linux/mtd/rawnand.h usage 2021-10-06 09:16:23 -04:00
xen Revert "arch: arm/xen: add putc() for debugging" 2020-10-23 09:16:07 -04:00
acpi_table.h acpi: Add missing ARM acpi_table header 2021-01-18 15:14:15 -05:00
armv7.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
armv7_mpu.h common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
armv7m.h arm: armv7m: clean up armv7m unified code compilation 2018-09-10 21:19:33 -04:00
assembler.h arm: ARMv4 assembly compatibility 2022-09-02 13:40:42 -04:00
atomic.h ARM: use asm-generic/atomic.h 2018-09-25 21:49:18 -04:00
barriers.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
bitops.h common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
boot0-linux-kernel-header.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
bootm.h arm: use CONFIG_SUPPORT_PASSING_ATAGS 2021-09-24 14:30:46 -04:00
byteorder.h armv8: Use __aarch64__ rather than CONFIG_ARM64 in some cases 2014-01-10 10:10:23 +01:00
cache.h arm: cp15: remove weak function arm_init_domains 2021-03-02 15:53:37 -05:00
config.h Convert CONFIG_SYS_BOOT_RAMDISK_HIGH to Kconfig 2022-07-07 14:01:09 -04:00
davinci_rtc.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
dma-mapping.h arm: Don't include common.h in header files 2020-05-18 14:54:24 -04:00
ehci-omap.h usb: ehci-omap: Drop dead code 2022-02-23 05:25:17 +01:00
emif.h arm: Don't include common.h in header files 2020-05-18 14:54:24 -04:00
esr.h arm64: Import some ESR and SPSR defines from Linux 2022-04-01 16:56:53 -04:00
fsl_secure_boot.h nxp: config_fsl_chain_trust.h: Clean up and remove unused portions 2022-07-05 17:04:01 -04:00
gic-v3.h Revert "arch: arm: use dt and UCLASS_SYSCON to get gic lpi details" 2021-10-31 08:46:29 -04:00
gic.h arm64 patch: gicv3 support 2014-04-08 00:15:12 +02:00
global_data.h Makefile: Allow LTO to be disabled for a build 2022-09-02 16:20:11 -04:00
gpio.h gpio: Introduce CONFIG_GPIO_EXTRA_HEADER to cleanup #ifdefs 2021-07-06 14:07:36 -04:00
handoff.h arm: Add arm handoff header file 2020-01-24 11:19:52 -05:00
hardware.h Move architecture-specific includes to arch/$ARCH/include/asm 2010-04-13 09:13:12 +02:00
io.h arm: Clean up asm/io.h 2022-03-02 13:59:29 -05:00
linkage.h arm: adapt asm/linkage.h from Linux 2012-05-15 08:31:26 +02:00
mach-types.h ARM: at91: remove references to RM9200DK 2021-09-21 10:08:24 +03:00
macro.h armv8: Fix and simplify branch_if_master/branch_if_slave 2022-03-02 13:59:29 -05:00
memory.h Various, accumulated typos collected from around the tree. 2016-10-06 20:57:40 -04:00
omap_common.h arm: omap2plus: Move CONFIG_SYS_PTV out of CONFIG namespace 2022-06-06 12:09:00 -04:00
omap_gpio.h doc: replace @return by Return: 2022-01-19 18:11:34 +01:00
omap_i2c.h dm: i2c: use CONFIG_IS_ENABLED macro for DM_I2C/DM_I2C_GPIO 2021-02-21 06:08:00 +01:00
omap_mmc.h common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
omap_musb.h dm: treewide: Rename ..._platdata variables to just ..._plat 2020-12-13 16:51:09 -07:00
omap_sec_common.h arm: Don't include common.h in header files 2020-05-18 14:54:24 -04:00
opcodes-sec.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
opcodes-virt.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
opcodes.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
pl310.h ARM: pl310: Add macro's for handling tag and data latency mask 2019-05-05 08:48:50 -04:00
posix_types.h armv8: Use __aarch64__ rather than CONFIG_ARM64 in some cases 2014-01-10 10:10:23 +01:00
processor.h Remove ${objtree}/include/asm/proc/ link 2014-06-11 16:27:05 -04:00
psci.h common: Drop linux/bitops.h from common header 2020-05-18 21:19:23 -04:00
ptrace.h Remove ${objtree}/include/asm/proc/ link 2014-06-11 16:27:05 -04:00
sections.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
secure.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2021-05-24 14:21:30 -04:00
setjmp.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
setup.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2021-05-24 14:21:30 -04:00
spin_table.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
spl.h arm: samsung: Migrate a number of symbols to Kconfig 2022-06-28 17:04:37 -04:00
string.h arm64: Kconfig: Enable usage of optimized memset/memcpy/memmove 2021-09-24 07:49:16 -04:00
system.h armv8: Always unmask SErrors 2022-03-02 13:59:29 -05:00
types.h arch: types.h: factor out fixed width typedefs to int-ll64.h 2018-09-10 20:48:16 -04:00
u-boot-arm.h arm64: Save esr in pt_regs 2022-04-01 16:56:53 -04:00
u-boot.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
unaligned.h arm64: core support 2014-01-09 16:08:44 +01:00
unified.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
utils.h SPDX: Convert all of our single license tags to Linux Kernel style 2018-05-07 09:34:12 -04:00
xen.h WS cleanup: remove trailing empty lines 2021-09-30 08:08:56 -04:00