CONFIG_MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE¶

Use size optimized string functions

Type: bool

Help¶

Enable smaller but potentially slower implementations of memcpy and
memset. On the Cortex-M0+ this reduces the total code size by 120 bytes.

Direct dependencies¶

SOC_ESP32C3 || SOC_ESP32 || SOC_ESP32S2 || SOC_ESP32C3 || SOC_ESP32 || SOC_ESP32S2 || MINIMAL_LIBC

(Includes any dependencies from ifs and menus.)

Defaults¶

n
n
n
n
n
n
y if SIZE_OPTIMIZATIONS

Kconfig definitions¶

At <Zephyr SoC>/riscv/esp32c3/Kconfig.defconfig:35

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32C3

At <Zephyr SoC>/xtensa/esp32/Kconfig.defconfig:17

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32

At <Zephyr SoC>/xtensa/esp32s2/Kconfig.defconfig:32

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32S2

At <Zephyr SoC>/riscv/esp32c3/Kconfig.defconfig:35

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32C3

At <Zephyr SoC>/xtensa/esp32/Kconfig.defconfig:17

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32

At <Zephyr SoC>/xtensa/esp32s2/Kconfig.defconfig:32

Included via Kconfig:8 → Kconfig.zephyr:27

Menu path: (Top)

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool
    default n
    depends on SOC_ESP32S2

At <Zephyr Library>/libc/Kconfig:153

Included via Kconfig:8 → Kconfig.zephyr:43 → <Zephyr Library>/Kconfig:4

Menu path: (Top) → C Library

config MINIMAL_LIBC_OPTIMIZE_STRING_FOR_SIZE
    bool "Use size optimized string functions"
    default y if SIZE_OPTIMIZATIONS
    depends on MINIMAL_LIBC
    help
      Enable smaller but potentially slower implementations of memcpy and
      memset. On the Cortex-M0+ this reduces the total code size by 120 bytes.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)