bootloader_support: Add dummy ESP32-S3 RNG support

components/bootloader/subproject/main/ld/esp32s3/bootloader.ld

@@ -29,6 +29,7 @@ SECTIONS
     *libbootloader_support.a:bootloader_common.*(.literal .text .literal.* .text.*)
     *libbootloader_support.a:bootloader_flash.*(.literal .text .literal.* .text.*)
     *libbootloader_support.a:bootloader_random.*(.literal .text .literal.* .text.*)
+    *libbootloader_support.a:bootloader_random*.*(.literal.bootloader_random_disable .text.bootloader_random_disable)
     *libbootloader_support.a:bootloader_efuse_esp32s3.*(.literal .text .literal.* .text.*)
     *libbootloader_support.a:bootloader_utility.*(.literal .text .literal.* .text.*)
     *libbootloader_support.a:bootloader_sha.*(.literal .text .literal.* .text.*)

components/bootloader_support/component.mk

@@ -27,7 +27,8 @@ COMPONENT_OBJEXCLUDE += src/bootloader_flash_config_esp32s2.o \
 						src/bootloader_flash_config_esp32s3.o \
 						src/bootloader_efuse_esp32s2.o \
 						src/bootloader_efuse_esp32s3.o \
-						src/bootloader_random_esp32s2.o
+						src/bootloader_random_esp32s2.o \
+						src/bootloader_random_esp32s3.o
 
 ifndef CONFIG_SECURE_SIGNED_APPS_ECDSA_SCHEME
 ifndef CONFIG_SECURE_SIGNED_APPS_RSA_SCHEME

components/bootloader_support/src/bootloader_random_esp32s3.c

@@ -0,0 +1,28 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#include "sdkconfig.h"
+#include "bootloader_random.h"
+#include "esp_log.h"
+
+static const char *TAG = "bootloader_random";
+
+void bootloader_random_enable(void)
+{
+    ESP_LOGW(TAG, "RNG for ESP32-S3 not currently supported"); // IDF-1878
+}
+
+void bootloader_random_disable(void)
+{
+    ESP_LOGW(TAG, "RNG for ESP32-S3 not currently supported"); // IDF-1878
+}