diff --git a/components/bootloader/subproject/main/esp32.bootloader.rom.ld b/components/bootloader/subproject/main/esp32.bootloader.rom.ld
index 70f83bdf5..b39af891d 100644
--- a/components/bootloader/subproject/main/esp32.bootloader.rom.ld
+++ b/components/bootloader/subproject/main/esp32.bootloader.rom.ld
@@ -1 +1,4 @@
 PROVIDE ( ets_update_cpu_frequency = 0x40008550 ); /* Updates g_ticks_per_us on the current CPU only; not on the other core */
+PROVIDE ( MD5Final = 0x4005db1c );
+PROVIDE ( MD5Init = 0x4005da7c );
+PROVIDE ( MD5Update = 0x4005da9c );
diff --git a/components/bootloader_support/CMakeLists.txt b/components/bootloader_support/CMakeLists.txt
index 1f2885410..a6b559285 100644
--- a/components/bootloader_support/CMakeLists.txt
+++ b/components/bootloader_support/CMakeLists.txt
@@ -1,7 +1,6 @@
 set(COMPONENT_SRCS "src/bootloader_clock.c"
                    "src/bootloader_common.c"
                    "src/bootloader_flash.c"
-                   "src/bootloader_init.c"
                    "src/bootloader_random.c"
                    "src/bootloader_sha.c"
                    "src/bootloader_utility.c"
@@ -17,6 +16,7 @@ if(${BOOTLOADER_BUILD})
     set(COMPONENT_ADD_INCLUDEDIRS "include include_priv")
     set(COMPONENT_REQUIRES)
     set(COMPONENT_PRIV_REQUIRES spi_flash micro-ecc)
+    list(APPEND COMPONENT_SRCS "src/bootloader_init.c")
 else()
     set(COMPONENT_ADD_INCLUDEDIRS "include")
     set(COMPONENT_PRIV_INCLUDEDIRS "include_priv")
diff --git a/components/bootloader_support/component.mk b/components/bootloader_support/component.mk
index dc449a601..dee3ecd7f 100644
--- a/components/bootloader_support/component.mk
+++ b/components/bootloader_support/component.mk
@@ -9,6 +9,10 @@ endif
 
 COMPONENT_SRCDIRS := src
 
+ifndef IS_BOOTLOADER_BUILD
+COMPONENT_OBJEXCLUDE := src/bootloader_init.o
+endif
+
 #
 # Secure boot signing key support
 #
diff --git a/components/esp32/ld/esp32.rom.ld b/components/esp32/ld/esp32.rom.ld
index fe692a796..c7e5eb2f7 100644
--- a/components/esp32/ld/esp32.rom.ld
+++ b/components/esp32/ld/esp32.rom.ld
@@ -3,19 +3,13 @@ ESP32 ROM address table
 Generated for ROM with MD5sum:
 ab8282ae908fe9e7a63fb2a4ac2df013  ../../rom_image/prorom.elf
 */
-PROVIDE ( abort = 0x4000bba4 );
 PROVIDE ( Add2SelfBigHex256 = 0x40015b7c );
 PROVIDE ( AddBigHex256 = 0x40015b28 );
 PROVIDE ( AddBigHexModP256 = 0x40015c98 );
 PROVIDE ( AddP256 = 0x40015c74 );
 PROVIDE ( AddPdiv2_256 = 0x40015ce0 );
-PROVIDE ( aes_128_cbc_decrypt = 0x4005cc7c );
-PROVIDE ( aes_128_cbc_encrypt = 0x4005cc18 );
-PROVIDE ( aes_unwrap = 0x4005ccf0 );
 PROVIDE ( app_gpio_arg = 0x3ffe003c );
 PROVIDE ( app_gpio_handler = 0x3ffe0040 );
-PROVIDE ( base64_decode = 0x4005ced8 );
-PROVIDE ( base64_encode = 0x4005cdbc );
 PROVIDE ( BasePoint_x_256 = 0x3ff97488 );
 PROVIDE ( BasePoint_y_256 = 0x3ff97468 );
 PROVIDE ( bigHexInversion256 = 0x400168f0 );
@@ -98,12 +92,8 @@ PROVIDE ( ets_startup_callback = 0x3ffe0404 );
 PROVIDE ( exc_cause_table = 0x3ff991d0 );
 PROVIDE ( _exit_r = 0x4000bd28 );
 PROVIDE ( free = 0x4000beb8 );
-PROVIDE ( _free_r = 0x4000bbcc );
 PROVIDE ( _fstat_r = 0x4000bccc );
 PROVIDE ( __gcc_bcmp = 0x40064a70 );
-PROVIDE ( _getpid_r = 0x4000bcfc );
-PROVIDE ( __getreent = 0x4000be8c );
-PROVIDE ( _gettimeofday_r = 0x4000bc58 );
 PROVIDE ( GF_Jacobian_Point_Addition256 = 0x400163a4 );
 PROVIDE ( GF_Jacobian_Point_Double256 = 0x40016260 );
 PROVIDE ( GF_Point_Jacobian_To_Affine256 = 0x40016b0c );
@@ -127,16 +117,9 @@ PROVIDE ( hci_evt_dbg_desc_tab = 0x3ff9750c );
 PROVIDE ( hci_evt_desc_tab = 0x3ff9751c );
 PROVIDE ( hci_evt_le_desc_tab = 0x3ff974b4 );
 PROVIDE ( hci_fc_env = 0x3ffb9340 );
-PROVIDE ( hmac_md5 = 0x4005d264 );
-PROVIDE ( hmac_md5_vector = 0x4005d17c );
-PROVIDE ( hmac_sha1 = 0x40060acc );
-PROVIDE ( hmac_sha1_vector = 0x400609e4 );
-PROVIDE ( hmac_sha256 = 0x40060d58 );
-PROVIDE ( hmac_sha256_vector = 0x40060c84 );
 PROVIDE ( jd_decomp = 0x400613e8 );
 PROVIDE ( jd_prepare = 0x40060fa8 );
 PROVIDE ( ke_env = 0x3ffb93cc );
-PROVIDE ( _kill_r = 0x4000bd10 );
 PROVIDE ( lb_default_handler = 0x3ff982b8 );
 PROVIDE ( lb_default_state_tab_p_get = 0x4001c198 );
 PROVIDE ( lb_env = 0x3ffb9424 );
@@ -199,23 +182,10 @@ PROVIDE ( lm_n_page_tab = 0x3ff990e8 );
 PROVIDE ( lmp_desc_tab = 0x3ff96e6c );
 PROVIDE ( lmp_ext_desc_tab = 0x3ff96d9c );
 PROVIDE ( lm_state = 0x3ffb9a1c );
-PROVIDE ( _lock_acquire_recursive = 0x4000be28 );
-PROVIDE ( _lock_close = 0x4000bdec );
-PROVIDE ( _lock_close_recursive = 0x4000be00 );
-PROVIDE ( _lock_init = 0x4000bdc4 );
-PROVIDE ( _lock_init_recursive = 0x4000bdd8 );
-PROVIDE ( _lock_release_recursive = 0x4000be78 );
-PROVIDE ( _lock_try_acquire = 0x4000be3c );
-PROVIDE ( _lock_try_acquire_recursive = 0x4000be50 );
 PROVIDE ( _lseek_r = 0x4000bd8c );
 PROVIDE ( malloc = 0x4000bea0 );
-PROVIDE ( _malloc_r = 0x4000bbb4 );
 PROVIDE ( maxSecretKey_256 = 0x3ff97448 );
 PROVIDE ( __mb_cur_max = 0x3ff96530 );
-PROVIDE ( MD5Final = 0x4005db1c );
-PROVIDE ( MD5Init = 0x4005da7c );
-PROVIDE ( MD5Update = 0x4005da9c );
-PROVIDE ( md5_vector = 0x4005db80 );
 PROVIDE ( mmu_init = 0x400095a4 );
 PROVIDE ( __month_lengths = 0x3ff9609c );
 PROVIDE ( MultiplyBigHexByUint32_256 = 0x40016214 );
@@ -228,7 +198,6 @@ PROVIDE ( mz_free = 0x4005eed4 );
 PROVIDE ( notEqual256 = 0x40015b04 );
 PROVIDE ( one_bits = 0x3ff971f8 );
 PROVIDE ( _open_r = 0x4000bd54 );
-PROVIDE ( pbkdf2_sha1 = 0x40060ba4 );
 PROVIDE ( phy_get_romfuncs = 0x40004100 );
 PROVIDE ( _Pri_4_HandlerAddress = 0x3ffe0648 );
 PROVIDE ( _Pri_5_HandlerAddress = 0x3ffe064c );
@@ -246,7 +215,6 @@ PROVIDE ( r_bt_util_buf_sync_rx_alloc = 0x40010468 );
 PROVIDE ( r_bt_util_buf_sync_rx_free = 0x4001049c );
 PROVIDE ( r_bt_util_buf_sync_tx_alloc = 0x400103ec );
 PROVIDE ( r_bt_util_buf_sync_tx_free = 0x40010428 );
-PROVIDE ( rc4_skip = 0x40060928 );
 PROVIDE ( r_co_bdaddr_compare = 0x40014324 );
 PROVIDE ( r_co_bytes_to_string = 0x400142e4 );
 PROVIDE ( r_co_list_check_size_available = 0x400142c4 );
@@ -293,7 +261,6 @@ PROVIDE ( r_ea_interval_remove = 0x40015590 );
 PROVIDE ( ea_conflict_check = 0x40014e9c );
 PROVIDE ( ea_prog_timer = 0x40014f88 );
 PROVIDE ( realloc = 0x4000becc );
-PROVIDE ( _realloc_r = 0x4000bbe0 );
 PROVIDE ( r_ea_offset_req = 0x40015748 );
 PROVIDE ( r_ea_sleep_check = 0x40015928 );
 PROVIDE ( r_ea_sw_isr = 0x40015724 );
@@ -1318,14 +1285,9 @@ PROVIDE ( rwip_priority = 0x3ff99159 );
 PROVIDE ( rwip_rf = 0x3ffbdb28 );
 PROVIDE ( rwip_rf_p_get = 0x400558f4 );
 PROVIDE ( r_XorKey = 0x400112c0 );
-PROVIDE ( _sbrk_r = 0x4000bce4 );
 PROVIDE ( __sf_fake_stderr = 0x3ff96458 );
 PROVIDE ( __sf_fake_stdin = 0x3ff96498 );
 PROVIDE ( __sf_fake_stdout = 0x3ff96478 );
-PROVIDE ( sha1_prf = 0x40060ae8 );
-PROVIDE ( sha1_vector = 0x40060b64 );
-PROVIDE ( sha256_prf = 0x40060d70 );
-PROVIDE ( sha256_vector = 0x40060e08 );
 PROVIDE ( sha_blk_bits = 0x3ff99290 );
 PROVIDE ( sha_blk_bits_bytes = 0x3ff99288 );
 PROVIDE ( sha_blk_hash_bytes = 0x3ff9928c );
@@ -1381,7 +1343,6 @@ PROVIDE ( tdefl_get_prev_return_status = 0x400608d0 );
 PROVIDE ( tdefl_init = 0x40060810 );
 PROVIDE ( tdefl_write_image_to_png_file_in_memory = 0x4006091c );
 PROVIDE ( tdefl_write_image_to_png_file_in_memory_ex = 0x40060910 );
-PROVIDE ( _times_r = 0x4000bc40 );
 PROVIDE ( _timezone = 0x3ffae0a0 );
 PROVIDE ( tinfl_decompress = 0x4005ef30 );
 PROVIDE ( tinfl_decompress_mem_to_callback = 0x40060090 );
@@ -1514,7 +1475,6 @@ PROVIDE ( uart_tx_flush = 0x40009258 );
 PROVIDE ( uart_tx_one_char = 0x40009200 );
 PROVIDE ( uart_tx_one_char2 = 0x4000922c );
 PROVIDE ( uart_tx_switch = 0x40009028 );
-PROVIDE ( uart_tx_wait_idle = 0x40009278 );
 
 
 /*
@@ -1581,8 +1541,6 @@ PROVIDE ( ets_efuse_read_op = 0x40008600 );
 PROVIDE ( ets_intr_lock = 0x400067b0 );
 PROVIDE ( ets_intr_unlock = 0x400067c4 );
 PROVIDE ( ets_isr_attach = 0x400067ec );
-PROVIDE ( ets_isr_mask = 0x400067fc );
-PROVIDE ( ets_isr_unmask = 0x40006808 );
 PROVIDE ( ets_waiti0 = 0x400067d8 );
 PROVIDE ( intr_matrix_set = 0x4000681c );
 PROVIDE ( check_pos = 0x400068b8 );
@@ -1622,13 +1580,6 @@ PROVIDE ( ets_delay_us = 0x40008534 );
 PROVIDE ( ets_get_cpu_frequency = 0x4000855c );
 PROVIDE ( ets_get_detected_xtal_freq = 0x40008588 );
 PROVIDE ( ets_get_xtal_scale = 0x4000856c );
-PROVIDE ( ets_timer_arm = 0x40008368 );
-PROVIDE ( ets_timer_arm_us = 0x400083ac );
-PROVIDE ( ets_timer_disarm = 0x400083ec );
-PROVIDE ( ets_timer_done = 0x40008428 );
-PROVIDE ( ets_timer_handler_isr = 0x40008454 );
-PROVIDE ( ets_timer_init = 0x400084e8 );
-PROVIDE ( ets_timer_setfn = 0x40008350 );
 PROVIDE ( ets_update_cpu_frequency_rom = 0x40008550 );  /* Updates g_ticks_per_us on the current CPU only; not on the other core */
 
 /* Following are static data, but can be used, not generated by script <<<<< btdm data */
diff --git a/components/esp32/ld/esp32.rom.redefined.ld b/components/esp32/ld/esp32.rom.redefined.ld
new file mode 100644
index 000000000..c229640a2
--- /dev/null
+++ b/components/esp32/ld/esp32.rom.redefined.ld
@@ -0,0 +1,60 @@
+/* 
+   ROM Functions defined in this file are not used in ESP-IDF as is,
+   and different definitions for functions with the same names are provided.
+   This file is not used when linking ESP-IDF and is intended for reference only
+*/
+  
+PROVIDE ( abort = 0x4000bba4 );
+PROVIDE ( aes_128_cbc_decrypt = 0x4005cc7c );
+PROVIDE ( aes_128_cbc_encrypt = 0x4005cc18 );
+PROVIDE ( aes_unwrap = 0x4005ccf0 );
+PROVIDE ( base64_decode = 0x4005ced8 );
+PROVIDE ( base64_encode = 0x4005cdbc );
+PROVIDE ( ets_isr_mask = 0x400067fc );
+PROVIDE ( ets_isr_unmask = 0x40006808 );
+PROVIDE ( ets_timer_arm = 0x40008368 );
+PROVIDE ( ets_timer_arm_us = 0x400083ac );
+PROVIDE ( ets_timer_disarm = 0x400083ec );
+PROVIDE ( ets_timer_done = 0x40008428 );
+PROVIDE ( ets_timer_init = 0x400084e8 );
+PROVIDE ( ets_timer_handler_isr = 0x40008454 );
+PROVIDE ( ets_timer_setfn = 0x40008350 );
+PROVIDE ( _free_r = 0x4000bbcc );
+PROVIDE ( _getpid_r = 0x4000bcfc );
+PROVIDE ( __getreent = 0x4000be8c );
+PROVIDE ( _gettimeofday_r = 0x4000bc58 );
+PROVIDE ( hmac_md5 = 0x4005d264 );
+PROVIDE ( hmac_md5_vector = 0x4005d17c );
+PROVIDE ( hmac_sha1 = 0x40060acc );
+PROVIDE ( hmac_sha1_vector = 0x400609e4 );
+PROVIDE ( hmac_sha256 = 0x40060d58 );
+PROVIDE ( hmac_sha256_vector = 0x40060c84 );
+PROVIDE ( _kill_r = 0x4000bd10 );
+PROVIDE ( _lock_acquire = 0x4000be14 );
+PROVIDE ( _lock_acquire_recursive = 0x4000be28 );
+PROVIDE ( _lock_close = 0x4000bdec );
+PROVIDE ( _lock_close_recursive = 0x4000be00 );
+PROVIDE ( _lock_init = 0x4000bdc4 );
+PROVIDE ( _lock_init_recursive = 0x4000bdd8 );
+PROVIDE ( _lock_release = 0x4000be64 );
+PROVIDE ( _lock_release_recursive = 0x4000be78 );
+PROVIDE ( _lock_try_acquire = 0x4000be3c );
+PROVIDE ( _lock_try_acquire_recursive = 0x4000be50 );
+PROVIDE ( _malloc_r = 0x4000bbb4 );
+PROVIDE ( MD5Final = 0x4005db1c );
+PROVIDE ( MD5Init = 0x4005da7c );
+PROVIDE ( MD5Update = 0x4005da9c );
+PROVIDE ( md5_vector = 0x4005db80 );
+PROVIDE ( pbkdf2_sha1 = 0x40060ba4 );
+PROVIDE ( rc4_skip = 0x40060928 );
+PROVIDE ( _raise_r = 0x4000bc70 );
+PROVIDE ( _realloc_r = 0x4000bbe0 );
+PROVIDE ( _sbrk_r = 0x4000bce4 );
+PROVIDE ( sha1_prf = 0x40060ae8 );
+PROVIDE ( sha1_vector = 0x40060b64 );
+PROVIDE ( sha256_prf = 0x40060d70 );
+PROVIDE ( sha256_vector = 0x40060e08 );
+PROVIDE ( _system_r = 0x4000bc10 );
+PROVIDE ( _times_r = 0x4000bc40 );
+PROVIDE ( uart_tx_wait_idle = 0x40009278 );
+
diff --git a/components/esp32/ld/esp32.rom.spiram_incompatible_fns.ld b/components/esp32/ld/esp32.rom.spiram_incompatible_fns.ld
index e4899b661..17a38d355 100644
--- a/components/esp32/ld/esp32.rom.spiram_incompatible_fns.ld
+++ b/components/esp32/ld/esp32.rom.spiram_incompatible_fns.ld
@@ -64,8 +64,6 @@ PROVIDE ( __locale_mb_cur_max = 0x40059548 );
 PROVIDE ( __locale_msgcharset = 0x40059550 );
 PROVIDE ( localtime = 0x400595dc );
 PROVIDE ( localtime_r = 0x400595fc );
-PROVIDE ( _lock_acquire = 0x4000be14 );
-PROVIDE ( _lock_release = 0x4000be64 );
 PROVIDE ( longjmp = 0x400562cc );
 PROVIDE ( memccpy = 0x4000c220 );
 PROVIDE ( memchr = 0x4000c244 );
@@ -77,7 +75,6 @@ PROVIDE ( memset = 0x4000c44c );
 PROVIDE ( mktime = 0x4005a5e8 );
 PROVIDE ( open = 0x4000178c );
 PROVIDE ( qsort = 0x40056424 );
-PROVIDE ( _raise_r = 0x4000bc70 );
 PROVIDE ( rand = 0x40001058 );
 PROVIDE ( rand_r = 0x400010d4 );
 PROVIDE ( read = 0x400017dc );
@@ -145,7 +142,6 @@ PROVIDE ( __swbuf = 0x40058cb4 );
 PROVIDE ( __swbuf_r = 0x40058bec );
 PROVIDE ( __swrite = 0x40001150 );
 PROVIDE ( __swsetup_r = 0x40058cc8 );
-PROVIDE ( _system_r = 0x4000bc10 );
 PROVIDE ( time = 0x40001844 );
 PROVIDE ( __time_load_locale = 0x4000183c );
 PROVIDE ( times = 0x40001808 );
diff --git a/components/newlib/locks.c b/components/newlib/locks.c
index 026d8013d..646afd72c 100644
--- a/components/newlib/locks.c
+++ b/components/newlib/locks.c
@@ -118,6 +118,8 @@ void IRAM_ATTR _lock_close(_lock_t *lock) {
     portEXIT_CRITICAL(&lock_init_spinlock);
 }
 
+void IRAM_ATTR _lock_close_recursive(_lock_t *lock) __attribute__((alias("_lock_close")));
+
 /* Acquire the mutex semaphore for lock. wait up to delay ticks.
    mutex_type is queueQUEUE_TYPE_RECURSIVE_MUTEX or queueQUEUE_TYPE_MUTEX
 */
diff --git a/components/newlib/syscall_table.c b/components/newlib/syscall_table.c
index 624ffcffa..17920852a 100644
--- a/components/newlib/syscall_table.c
+++ b/components/newlib/syscall_table.c
@@ -70,7 +70,7 @@ static struct syscall_stub_table s_stub_table = {
     ._lock_init = &_lock_init,
     ._lock_init_recursive = &_lock_init_recursive,
     ._lock_close = &_lock_close,
-    ._lock_close_recursive = &_lock_close,
+    ._lock_close_recursive = &_lock_close_recursive,
     ._lock_acquire = &_lock_acquire,
     ._lock_acquire_recursive = &_lock_acquire_recursive,
     ._lock_try_acquire = &_lock_try_acquire,