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Merge branch 'disable_unused_vfs_esp32' into integration

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This commit is contained in:
J. Nick Koston
2025-10-20 20:59:18 -10:00
parent 3533ff50bd 572af76bee
commit b2fe8bb25d
1 changed files with 25 additions and 0 deletions
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25
esphome/components/esp32/__init__.py
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@@ -550,6 +550,8 @@ CONF_ENABLE_LWIP_BRIDGE_INTERFACE = "enable_lwip_bridge_interface"
CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING = "enable_lwip_tcpip_core_locking"
CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY = "enable_lwip_check_thread_safety"
CONF_DISABLE_LIBC_LOCKS_IN_IRAM = "disable_libc_locks_in_iram"
CONF_DISABLE_VFS_SUPPORT_TERMIOS = "disable_vfs_support_termios"
CONF_DISABLE_VFS_SUPPORT_SELECT = "disable_vfs_support_select"
def _validate_idf_component(config: ConfigType) -> ConfigType:
@@ -615,6 +617,12 @@ FRAMEWORK_SCHEMA = cv.All(
cv.Optional(
CONF_DISABLE_LIBC_LOCKS_IN_IRAM, default=True
): cv.boolean,
cv.Optional(
CONF_DISABLE_VFS_SUPPORT_TERMIOS, default=True
): cv.boolean,
cv.Optional(
CONF_DISABLE_VFS_SUPPORT_SELECT, default=True
): cv.boolean,
cv.Optional(CONF_EXECUTE_FROM_PSRAM): cv.boolean,
}
),
@@ -962,6 +970,23 @@ async def to_code(config):
if advanced.get(CONF_DISABLE_LIBC_LOCKS_IN_IRAM, True):
add_idf_sdkconfig_option("CONFIG_LIBC_LOCKS_PLACE_IN_IRAM", False)
# Disable VFS support for termios (terminal I/O functions)
# ESPHome doesn't use termios functions on ESP32 (only used in host UART driver).
# Saves approximately 1.8KB of flash when disabled (default).
add_idf_sdkconfig_option(
"CONFIG_VFS_SUPPORT_TERMIOS",
not advanced.get(CONF_DISABLE_VFS_SUPPORT_TERMIOS, True),
)
# Disable VFS support for select() with file descriptors
# ESPHome only uses select() with sockets via lwip_select(), which still works.
# VFS select is only needed for UART/eventfd file descriptors, which ESPHome doesn't use.
# Saves approximately 2.7KB of flash when disabled (default).
add_idf_sdkconfig_option(
"CONFIG_VFS_SUPPORT_SELECT",
not advanced.get(CONF_DISABLE_VFS_SUPPORT_SELECT, True),
)
cg.add_platformio_option("board_build.partitions", "partitions.csv")
if CONF_PARTITIONS in config:
add_extra_build_file(