build: split recovery footprint trims into separate config profile

build-scripts/build_recovery_size.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+source /opt/esp/idf/export.sh >/dev/null 2>&1
+
+BUILD_DIR="${1:-build-recovery-trim}"
+DEFAULTS="sdkconfig.defaults;sdkconfig.recovery.defaults"
+
+# Build only the recovery ELF (skip squeezelite.elf target).
+idf.py -B "${BUILD_DIR}" -D SDKCONFIG_DEFAULTS="${DEFAULTS}" recovery.elf
+
+# Generate a standalone recovery.bin from the built ELF.
+python /opt/esp/idf/components/esptool_py/esptool/esptool.py \
+  --chip esp32 elf2image -o "${BUILD_DIR}/recovery.bin" "${BUILD_DIR}/recovery.elf" >/dev/null
+
+# Print recovery image size summary from map.
+python /opt/esp/idf/tools/idf_size.py "${BUILD_DIR}/recovery.map"
+
+# Print partition fit/overflow status for recovery.bin.
+python /opt/esp/idf/components/partition_table/check_sizes.py \
+  --offset 0x8000 partition --type app \
+  "${BUILD_DIR}/partition_table/partition-table.bin" \
+  "${BUILD_DIR}/recovery.bin" || true

documentation/IDF55_REMEDIATION_IMPACTS.md

@@ -242,16 +242,21 @@ Baseline reference (handover):
 - `recovery` partition: `0x130000`
 - overflow: `0x19a60`
 
-Measured changes applied:
-1. Disable mbedTLS certificate bundle in `sdkconfig`
+Measured changes (now moved to a recovery-only profile):
+1. Disable mbedTLS certificate bundle in recovery profile
    - `# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE is not set`
    - observed `recovery.bin`: `0x149ae0` (intermediate run)
-2. Disable optional Wi-Fi auth feature families in `sdkconfig`
+2. Disable optional Wi-Fi auth feature families in recovery profile
    - `# CONFIG_ESP_WIFI_ENABLE_WPA3_SAE is not set`
    - `# CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA is not set`
    - `# CONFIG_ESP_WIFI_ENTERPRISE_SUPPORT is not set`
    - observed `recovery.bin`: `0x142e20`
 
+Profile split applied:
+- shared `sdkconfig` restored for full app compatibility
+- recovery trims moved to `sdkconfig.recovery.defaults`
+- helper script added: `build-scripts/build_recovery_size.sh`
+
 Net result vs baseline:
 - `recovery.bin` delta: `-0x6c40` bytes (`-27,712`)
 - overflow delta: `-0x6c40` bytes (`-27,712`)
@@ -270,3 +275,5 @@ Latest size snapshot (`build/recovery.map`):
 - For open blockers, refer to latest in-container build logs under:
   - `build/log/idf_py_stderr_output_*`
   - `build/log/idf_py_stdout_output_*`
+- For recovery-only footprint experiments (without changing shared `sdkconfig`), use:
+  - `build-scripts/build_recovery_size.sh [build-dir]`

sdkconfig

@@ -1561,8 +1561,11 @@ CONFIG_ESP_WIFI_MGMT_SBUF_NUM=32
 # CONFIG_ESP_WIFI_IRAM_OPT is not set
 # CONFIG_ESP_WIFI_EXTRA_IRAM_OPT is not set
 # CONFIG_ESP_WIFI_RX_IRAM_OPT is not set
-# CONFIG_ESP_WIFI_ENABLE_WPA3_SAE is not set
-# CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA is not set
+CONFIG_ESP_WIFI_ENABLE_WPA3_SAE=y
+CONFIG_ESP_WIFI_ENABLE_SAE_PK=y
+CONFIG_ESP_WIFI_ENABLE_SAE_H2E=y
+CONFIG_ESP_WIFI_SOFTAP_SAE_SUPPORT=y
+CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA=y
 # CONFIG_ESP_WIFI_SLP_IRAM_OPT is not set
 CONFIG_ESP_WIFI_SLP_DEFAULT_MIN_ACTIVE_TIME=50
 # CONFIG_ESP_WIFI_BSS_MAX_IDLE_SUPPORT is not set
@@ -1575,6 +1578,7 @@ CONFIG_ESP_WIFI_SOFTAP_SUPPORT=y
 CONFIG_ESP_WIFI_ESPNOW_MAX_ENCRYPT_NUM=7
 # CONFIG_ESP_WIFI_NAN_ENABLE is not set
 CONFIG_ESP_WIFI_MBEDTLS_CRYPTO=y
+CONFIG_ESP_WIFI_MBEDTLS_TLS_CLIENT=y
 # CONFIG_ESP_WIFI_WAPI_PSK is not set
 # CONFIG_ESP_WIFI_11KV_SUPPORT is not set
 # CONFIG_ESP_WIFI_MBO_SUPPORT is not set
@@ -1591,7 +1595,8 @@ CONFIG_ESP_WIFI_MBEDTLS_CRYPTO=y
 # end of WPS Configuration Options
 
 # CONFIG_ESP_WIFI_DEBUG_PRINT is not set
-# CONFIG_ESP_WIFI_ENTERPRISE_SUPPORT is not set
+CONFIG_ESP_WIFI_ENTERPRISE_SUPPORT=y
+# CONFIG_ESP_WIFI_ENT_FREE_DYNAMIC_BUFFER is not set
 # end of Wi-Fi
 
 #
@@ -2028,7 +2033,13 @@ CONFIG_MBEDTLS_PKCS7_C=y
 #
 # Certificate Bundle
 #
-# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE is not set
+CONFIG_MBEDTLS_CERTIFICATE_BUNDLE=y
+CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_FULL=y
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_CMN is not set
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEFAULT_NONE is not set
+# CONFIG_MBEDTLS_CUSTOM_CERTIFICATE_BUNDLE is not set
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_DEPRECATED_LIST is not set
+CONFIG_MBEDTLS_CERTIFICATE_BUNDLE_MAX_CERTS=200
 # end of Certificate Bundle
 
 # CONFIG_MBEDTLS_ECP_RESTARTABLE is not set
@@ -2623,9 +2634,10 @@ CONFIG_ESP32_WIFI_SOFTAP_BEACON_MAX_LEN=752
 CONFIG_ESP32_WIFI_MGMT_SBUF_NUM=32
 # CONFIG_ESP32_WIFI_IRAM_OPT is not set
 # CONFIG_ESP32_WIFI_RX_IRAM_OPT is not set
-# CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE is not set
-# CONFIG_ESP32_WIFI_ENABLE_WPA3_OWE_STA is not set
+CONFIG_ESP32_WIFI_ENABLE_WPA3_SAE=y
+CONFIG_ESP32_WIFI_ENABLE_WPA3_OWE_STA=y
 CONFIG_WPA_MBEDTLS_CRYPTO=y
+CONFIG_WPA_MBEDTLS_TLS_CLIENT=y
 # CONFIG_WPA_WAPI_PSK is not set
 # CONFIG_WPA_11KV_SUPPORT is not set
 # CONFIG_WPA_MBO_SUPPORT is not set

sdkconfig.recovery.defaults

@@ -0,0 +1,10 @@
+# Recovery-only footprint trims. Keep global sdkconfig full-featured.
+# Use with: -D SDKCONFIG_DEFAULTS="sdkconfig.defaults;sdkconfig.recovery.defaults"
+
+# TLS certificate bundle is large; disable in recovery profile.
+# CONFIG_MBEDTLS_CERTIFICATE_BUNDLE is not set
+
+# Disable optional Wi-Fi auth feature families in recovery profile.
+# CONFIG_ESP_WIFI_ENABLE_WPA3_SAE is not set
+# CONFIG_ESP_WIFI_ENABLE_WPA3_OWE_STA is not set
+# CONFIG_ESP_WIFI_ENTERPRISE_SUPPORT is not set