From 518704855e2d72e34cbee0bd829e7b9c35ff04ef Mon Sep 17 00:00:00 2001
From: Scott Mabin <scott@mabez.dev>
Date: Fri, 8 Mar 2024 14:54:04 +0000
Subject: [PATCH] use ROM memcpy over compiler builtins ROM

---
 esp-hal/ld/esp32/rom-functions.x   | 5 +++++
 esp-hal/ld/esp32c2/rom-functions.x | 5 +++++
 esp-hal/ld/esp32c3/rom-functions.x | 5 +++++
 esp-hal/ld/esp32c6/rom-functions.x | 5 +++++
 esp-hal/ld/esp32h2/rom-functions.x | 5 +++++
 esp-hal/ld/esp32p4/rom-functions.x | 5 +++++
 esp-hal/ld/esp32s2/rom-functions.x | 5 +++++
 esp-hal/ld/esp32s3/rom-functions.x | 5 +++++
 8 files changed, 40 insertions(+)

diff --git a/esp-hal/ld/esp32/rom-functions.x b/esp-hal/ld/esp32/rom-functions.x
index b21a2be2b7f..87d4f49d9c2 100644
--- a/esp-hal/ld/esp32/rom-functions.x
+++ b/esp-hal/ld/esp32/rom-functions.x
@@ -27,3 +27,8 @@ PROVIDE (esp_rom_crc8_le = 0x4005d0e0);
 PROVIDE (esp_rom_md5_init   = 0x4005da7c);
 PROVIDE (esp_rom_md5_update = 0x4005da9c);
 PROVIDE (esp_rom_md5_final  = 0x4005db1c);
+
+memcmp = 0x4000c260;
+memcpy = 0x4000c2c8;
+memmove = 0x4000c3c0;
+memset = 0x4000c44c;
diff --git a/esp-hal/ld/esp32c2/rom-functions.x b/esp-hal/ld/esp32c2/rom-functions.x
index db797d42a00..3165a52667a 100644
--- a/esp-hal/ld/esp32c2/rom-functions.x
+++ b/esp-hal/ld/esp32c2/rom-functions.x
@@ -16,3 +16,8 @@ PROVIDE(esp_rom_crc8_le = 0x40000804);
 PROVIDE(esp_rom_mbedtls_md5_starts_ret = 0x40002be4);
 PROVIDE(esp_rom_mbedtls_md5_update_ret = 0x40002be8);
 PROVIDE(esp_rom_mbedtls_md5_finish_ret = 0x40002bec);
+
+memset = 0x40000488;
+memcpy = 0x4000048c;
+memmove = 0x40000490;
+memcmp = 0x40000494;
\ No newline at end of file
diff --git a/esp-hal/ld/esp32c3/rom-functions.x b/esp-hal/ld/esp32c3/rom-functions.x
index cd57ab6a754..1d205abc3f8 100644
--- a/esp-hal/ld/esp32c3/rom-functions.x
+++ b/esp-hal/ld/esp32c3/rom-functions.x
@@ -23,3 +23,8 @@ PROVIDE(esp_rom_crc8_le = 0x40000638);
 PROVIDE(esp_rom_md5_init = 0x40000614);
 PROVIDE(esp_rom_md5_update = 0x40000618);
 PROVIDE(esp_rom_md5_final = 0x4000061c);
+
+memset = 0x40000354;
+memcpy = 0x40000358;
+memmove = 0x4000035c;
+memcmp = 0x40000360;
\ No newline at end of file
diff --git a/esp-hal/ld/esp32c6/rom-functions.x b/esp-hal/ld/esp32c6/rom-functions.x
index 8184f36a489..bc628237e1c 100644
--- a/esp-hal/ld/esp32c6/rom-functions.x
+++ b/esp-hal/ld/esp32c6/rom-functions.x
@@ -23,3 +23,8 @@ PROVIDE(esp_rom_crc8_le = 0x40000760);
 PROVIDE(esp_rom_md5_init = 0x4000074c);
 PROVIDE(esp_rom_md5_update = 0x40000750);
 PROVIDE(esp_rom_md5_final = 0x40000754);
+
+memset = 0x400004a8;
+memcpy = 0x400004ac;
+memmove = 0x400004b0;
+memcmp = 0x400004b4;
diff --git a/esp-hal/ld/esp32h2/rom-functions.x b/esp-hal/ld/esp32h2/rom-functions.x
index 3c9c5aec860..8318a51d24e 100644
--- a/esp-hal/ld/esp32h2/rom-functions.x
+++ b/esp-hal/ld/esp32h2/rom-functions.x
@@ -23,3 +23,8 @@ PROVIDE(esp_rom_crc8_le = 0x4000072c);
 PROVIDE(esp_rom_md5_init = 0x40000718);
 PROVIDE(esp_rom_md5_update = 0x4000071c);
 PROVIDE(esp_rom_md5_final = 0x40000720);
+
+memset = 0x400004a0;
+memcpy = 0x400004a4;
+memmove = 0x400004a8;
+memcmp = 0x400004ac;
\ No newline at end of file
diff --git a/esp-hal/ld/esp32p4/rom-functions.x b/esp-hal/ld/esp32p4/rom-functions.x
index 530978401e1..1d98cb9e07a 100644
--- a/esp-hal/ld/esp32p4/rom-functions.x
+++ b/esp-hal/ld/esp32p4/rom-functions.x
@@ -1,3 +1,8 @@
 ets_update_cpu_frequency = 0x4fc00044;
 ets_printf = 0x4fc00024;
 PROVIDE(ets_delay_us = 0x4fc0003c);
+
+memset = 0x4fc00268;
+memcpy = 0x4fc0026c;
+memmove = 0x4fc00270;
+memcmp = 0x4fc00274;
\ No newline at end of file
diff --git a/esp-hal/ld/esp32s2/rom-functions.x b/esp-hal/ld/esp32s2/rom-functions.x
index 1c697c10eb3..f7f4e7fa0d2 100644
--- a/esp-hal/ld/esp32s2/rom-functions.x
+++ b/esp-hal/ld/esp32s2/rom-functions.x
@@ -27,3 +27,8 @@ PROVIDE(esp_rom_crc8_le = 0x40011a4c);
 PROVIDE(esp_rom_md5_final = 0x4000530c);
 PROVIDE(esp_rom_md5_init = 0x4000526c);
 PROVIDE(esp_rom_md5_update = 0x4000528c);
+
+memcmp = 0x4001ab40;
+memcpy = 0x4001aba8;
+memmove = 0x4001acb0;
+memset = 0x4001ad3c;
\ No newline at end of file
diff --git a/esp-hal/ld/esp32s3/rom-functions.x b/esp-hal/ld/esp32s3/rom-functions.x
index 08a4832baf3..299d4d626d6 100644
--- a/esp-hal/ld/esp32s3/rom-functions.x
+++ b/esp-hal/ld/esp32s3/rom-functions.x
@@ -34,3 +34,8 @@ PROVIDE(esp_rom_md5_final = 0x40001c74);
 PROVIDE (esp_rom_opiflash_exec_cmd = 0x400008b8);
 PROVIDE( esp_rom_spi_set_dtr_swap_mode = 0x4000093c );
 PROVIDE( esp_rom_opiflash_pin_config = 0x40000894 );
+
+memset = 0x400011e8;
+memcpy = 0x400011f4;
+memmove = 0x40001200;
+memcmp = 0x4000120c;
\ No newline at end of file