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[logger] Fix USB Serial JTAG VFS linker errors when using UART on IDF

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This commit is contained in:
J. Nick Koston
2026-01-29 17:18:42 -06:00
parent 6de2049076
commit 49840ed4fa
2 changed files with 29 additions and 5 deletions
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esphome/components/esp32/__init__.py
+21 -5
View File
@@ -739,9 +739,10 @@ CONF_DISABLE_REGI2C_IN_IRAM = "disable_regi2c_in_iram"
CONF_DISABLE_FATFS = "disable_fatfs"
# VFS requirement tracking
# Components that need VFS features can call require_vfs_select() or require_vfs_dir()
# Components that need VFS features can call require_vfs_*() functions
KEY_VFS_SELECT_REQUIRED = "vfs_select_required"
KEY_VFS_DIR_REQUIRED = "vfs_dir_required"
KEY_VFS_TERMIOS_REQUIRED = "vfs_termios_required"
# Feature requirement tracking - components can call require_* functions to re-enable
# These are stored in CORE.data[KEY_ESP32] dict
KEY_USB_SERIAL_JTAG_SECONDARY_REQUIRED = "usb_serial_jtag_secondary_required"
@@ -768,6 +769,15 @@ def require_vfs_dir() -> None:
CORE.data[KEY_VFS_DIR_REQUIRED] = True
def require_vfs_termios() -> None:
"""Mark that VFS termios support is required by a component.
Call this from components that use terminal I/O functions (usb_serial_jtag_vfs_*, etc.).
This prevents CONFIG_VFS_SUPPORT_TERMIOS from being disabled.
"""
CORE.data[KEY_VFS_TERMIOS_REQUIRED] = True
def require_full_certificate_bundle() -> None:
"""Request the full certificate bundle instead of the common-CAs-only bundle.
@@ -1372,11 +1382,17 @@ async def to_code(config):
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).
# USB Serial JTAG VFS functions require termios support.
# Components that need it (e.g., logger with USB_SERIAL_JTAG) call require_vfs_termios().
# Saves approximately 1.8KB of flash when disabled (default).
add_idf_sdkconfig_option(
"CONFIG_VFS_SUPPORT_TERMIOS", not advanced[CONF_DISABLE_VFS_SUPPORT_TERMIOS]
)
if CORE.data.get(KEY_VFS_TERMIOS_REQUIRED, False):
# Component requires VFS termios - force enable regardless of user setting
add_idf_sdkconfig_option("CONFIG_VFS_SUPPORT_TERMIOS", True)
else:
# No component needs it - allow user to control (default: disabled)
add_idf_sdkconfig_option(
"CONFIG_VFS_SUPPORT_TERMIOS", not advanced[CONF_DISABLE_VFS_SUPPORT_TERMIOS]
)
# Disable VFS support for select() with file descriptors
# ESPHome only uses select() with sockets via lwip_select(), which still works.
esphome/components/logger/__init__.py
+8
View File
@@ -16,6 +16,8 @@ from esphome.components.esp32 import (
VARIANT_ESP32S3,
add_idf_sdkconfig_option,
get_esp32_variant,
require_usb_serial_jtag_secondary,
require_vfs_termios,
)
from esphome.components.libretiny import get_libretiny_component, get_libretiny_family
from esphome.components.libretiny.const import (
@@ -397,9 +399,15 @@ async def to_code(config):
elif config[CONF_HARDWARE_UART] == USB_SERIAL_JTAG:
add_idf_sdkconfig_option("CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG", True)
cg.add_define("USE_LOGGER_UART_SELECTION_USB_SERIAL_JTAG")
# Define platform support flags for components that need auto-detection
try:
uart_selection(USB_SERIAL_JTAG)
cg.add_define("USE_LOGGER_USB_SERIAL_JTAG")
# USB Serial JTAG code is compiled when platform supports it.
# Enable secondary USB serial JTAG console so the VFS functions are available.
if CORE.is_esp32 and config[CONF_HARDWARE_UART] != USB_SERIAL_JTAG:
require_usb_serial_jtag_secondary()
require_vfs_termios()
except cv.Invalid:
pass
try: