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bootloader: Add option to build with Link Time Optimisation enabled

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Angus Gratton
2017-06-30 17:14:50 +10:00
committed by Angus Gratton
parent 17adb40ca8
commit d1b66a08c1
3 changed files with 17 additions and 3 deletions
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13
components/bootloader/Kconfig.projbuild
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@@ -43,7 +43,16 @@ config BOOTLOADER_SPI_WP_PIN
The default value (GPIO 7) is correct for WP pin on ESP32-D2WD integrated flash.
endmenu # Bootloader
config BOOTLOADER_LTO
bool "Build bootloader with Link Time Optimisation"
default n
help
Setting this option enables gcc Link Time Optimisation for the bootloader build & link pass.
This gives a smaller bootloader binary (can be useful if secure boot & flash encryption & logging are all enabled), and can
give faster boot times, but it makes the bootloader harder to debug.
endmenu # Bootloader config
menu "Security features"
@@ -217,7 +226,7 @@ config FLASH_ENCRYPTION_UART_BOOTLOADER_ALLOW_CACHE
config SECURE_BOOT_TEST_MODE
bool "Secure boot test mode: don't permanently set any efuses"
depends on SECURE_BOOT_INSECURE
default N
default n
help
If this option is set, all permanent secure boot changes (via Efuse) are disabled.