feat(heap): move TLSF ROM patches and related files from esp_rom to heap

The TLSF ROM patch code (rom_patch_tlsf.c, rom_patch_multi_heap.c),
their headers, and the per-target *.rom.heap.ld linker scripts are
semantically owned by the heap component, not esp_rom. Move them
accordingly:

- components/esp_rom/patches/esp_rom_tlsf.c
  → components/heap/rom_patches/rom_patch_tlsf.c
- components/esp_rom/patches/esp_rom_multi_heap.c
  → components/heap/rom_patches/rom_patch_multi_heap.c
- components/esp_rom/include/esp_rom_tlsf.h
  → components/heap/rom_patches/include/rom_patch_tlsf.h
- components/esp_rom/include/esp_rom_multi_heap.h
  → components/heap/rom_patches/include/rom_patch_multi_heap.h
- components/esp_rom/<target>/ld/<target>.rom.heap.ld (×8)
  → components/heap/port/<target>/ld/<target>.rom.heap.ld

Update heap/CMakeLists.txt to:
- use target_linker_script() directly for *.rom.heap.ld
- guard post-registration ROM patch setup with NOT BOOTLOADER_BUILD
- drop stale CONFIG_HEAP_TLSF_CHECK_PATCH symbol reference
- drop esp_rom_include_multi_heap_patch from TLSF_CHECK_PATCH guard

Remove the corresponding entries from esp_rom/CMakeLists.txt.

components/esp_rom/CMakeLists.txt

@@ -24,18 +24,6 @@ else()
                         "patches/esp_rom_efuse.c"
                         "patches/esp_rom_gpio.c")
 
-    if(NOT BOOTLOADER_BUILD)
-        if(CONFIG_HEAP_TLSF_USE_ROM_IMPL AND CONFIG_ESP_ROM_TLSF_CHECK_PATCH)
-            # This file shall be included in the build if TLSF in ROM is activated
-            list(APPEND sources "patches/esp_rom_tlsf.c")
-        endif()
-
-        if(CONFIG_HEAP_TLSF_USE_ROM_IMPL AND CONFIG_ESP_ROM_MULTI_HEAP_WALK_PATCH)
-            # This file shall be included in the build if TLSF in ROM is activated
-            list(APPEND sources "patches/esp_rom_multi_heap.c")
-        endif()
-    endif()
-
     list(APPEND private_required_comp soc hal esp_hal_uart)
 endif()
 
@@ -119,7 +107,6 @@ if(CONFIG_ESP_ROM_HAS_VERSION)
 endif()
 
 if(ESP_TEE_BUILD)
-    rom_linker_script("heap")
     if(CONFIG_LIBC_NEWLIB AND CONFIG_ESP_ROM_HAS_NEWLIB_NANO_FORMAT)
         rom_linker_script("newlib-nano")
     endif()
@@ -347,22 +334,6 @@ else() # Regular app build
         endif()
     endif()
 
-    if(CONFIG_HEAP_TLSF_USE_ROM_IMPL)
-        # After registering the component, set the tlsf_set_rom_patches symbol as undefined
-        # to force the linker to integrate the whole `esp_rom_tlsf.c` object file inside the
-        # final binary. This is necessary because tlsf_set_rom_patches is a constructor, thus,
-        # there as no explicit reference/call to it in IDF.
-        if((CONFIG_ESP_ROM_TLSF_CHECK_PATCH OR CONFIG_HEAP_TLSF_CHECK_PATCH))
-            target_link_libraries(${COMPONENT_LIB} PRIVATE "-u tlsf_set_rom_patches")
-        endif()
-
-        if((CONFIG_ESP_ROM_TLSF_CHECK_PATCH OR CONFIG_ESP_ROM_MULTI_HEAP_WALK_PATCH))
-            target_link_libraries(${COMPONENT_LIB} PRIVATE "-u esp_rom_include_multi_heap_patch")
-        endif()
-
-        rom_linker_script("heap")
-    endif()
-
     if(CONFIG_SPI_FLASH_ROM_IMPL)
         # Older targets do not have a separate ld file for spiflash
         if(NOT target STREQUAL "esp32c3" AND NOT target STREQUAL "esp32s3" AND NOT target STREQUAL "esp32c2")

components/esp_tee/subproject/main/CMakeLists.txt

@@ -58,6 +58,7 @@ list(APPEND srcs "common/multi_heap.c")
 
 # TLSF implementation for heap
 list(APPEND include "${heap_dir}/tlsf")
+list(APPEND include "${heap_dir}/rom_patches/include")
 
 # esp_app_desc_t configuration structure for TEE
 list(APPEND srcs "common/esp_app_desc_tee.c")

components/esp_tee/subproject/main/common/multi_heap.c

@@ -6,7 +6,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <stdbool.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 #include "esp_rom_sys.h"
 #include "tlsf_block_functions.h"
 #include "multi_heap.h"

components/esp_tee/subproject/main/ld/esp_tee_ld.cmake

@@ -13,6 +13,9 @@ set(ld_output "${CMAKE_CURRENT_BINARY_DIR}/ld/esp_tee.ld")
 
 target_linker_script(${COMPONENT_LIB} INTERFACE "${ld_output}")
 
+idf_component_get_property(heap_dir heap COMPONENT_DIR)
+target_linker_script(${COMPONENT_LIB} INTERFACE "${heap_dir}/port/${target}/ld/${target}.rom.heap.ld")
+
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/ld")
 
 # Preprocess esp_tee.ld.in linker script to include configuration, becomes esp_tee.ld

components/esp_tee/test_apps/tee_test_fw/components/test_sec_srv/src/test_heap.c

@@ -5,7 +5,7 @@
  */
 #include "esp_rom_sys.h"
 #include "multi_heap.h"
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 typedef struct {
     int *ptr;

components/heap/CMakeLists.txt

@@ -13,7 +13,7 @@ set(srcs "heap_caps_base.c"
          "multi_heap.c")
 
 # the root dir of TLSF submodule contains headers with static inline
-# functions used in the esp_rom component for TLSF patches. Therefore,
+# functions used in the heap ROM patches. Therefore,
 # the tlsf/ dir must be included in the list of public includes.
 set(includes "include"
              "tlsf")
@@ -49,6 +49,21 @@ endif()
 if(NOT BOOTLOADER_BUILD)
     list(APPEND srcs "port/memory_layout_utils.c")
     list(APPEND srcs "port/${target}/memory_layout.c")
+
+    if(CONFIG_HEAP_TLSF_USE_ROM_IMPL)
+        list(APPEND includes "rom_patches/include"
+                             "rom_patches/${target}")
+
+        if(CONFIG_ESP_ROM_TLSF_CHECK_PATCH)
+            # This file shall be included in the build if TLSF in ROM is activated
+            list(APPEND srcs "rom_patches/rom_patch_tlsf.c")
+        endif()
+
+        if(CONFIG_ESP_ROM_MULTI_HEAP_WALK_PATCH)
+            # This file shall be included in the build if TLSF in ROM is activated
+            list(APPEND srcs "rom_patches/rom_patch_multi_heap.c")
+        endif()
+    endif()
 endif()
 
 idf_component_register(SRCS "${srcs}"
@@ -57,6 +72,22 @@ idf_component_register(SRCS "${srcs}"
                     LDFRAGMENTS linker.lf
                     PRIV_REQUIRES soc)
 
+if(CONFIG_HEAP_TLSF_USE_ROM_IMPL AND NOT BOOTLOADER_BUILD)
+    # After registering the component, set the tlsf_set_rom_patches symbol as undefined
+    # to force the linker to integrate the whole rom_patch_tlsf.c object file inside the
+    # final binary. This is necessary because tlsf_set_rom_patches is a constructor, thus,
+    # there is no explicit reference/call to it in IDF.
+    if(CONFIG_ESP_ROM_TLSF_CHECK_PATCH)
+        target_link_libraries(${COMPONENT_LIB} PRIVATE "-u tlsf_set_rom_patches")
+    endif()
+
+    if(CONFIG_ESP_ROM_MULTI_HEAP_WALK_PATCH)
+        target_link_libraries(${COMPONENT_LIB} PRIVATE "-u esp_rom_include_multi_heap_patch")
+    endif()
+
+    target_linker_script(${COMPONENT_LIB} INTERFACE "port/${target}/ld/${target}.rom.heap.ld")
+endif()
+
 if(CONFIG_HEAP_TRACING)
     set(WRAP_FUNCTIONS
         heap_caps_realloc_base

components/heap/multi_heap_poisoning.c

@@ -27,7 +27,7 @@
  * fill and check memory region with given patterns in the heap
  * components.
  */
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 #endif
 
 #ifdef MULTI_HEAP_POISONING

components/heap/rom_patches/esp32c2/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32c5/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32c6/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32c61/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32h2/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32h21/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32h4/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/esp32s31/esp_rom_heap_tlsf_stub_table.h

@@ -8,7 +8,7 @@
 #pragma once
 
 #include <stddef.h>
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
 
 #ifdef __cplusplus
 extern "C" {

components/heap/rom_patches/rom_patch_multi_heap.c

@@ -15,8 +15,8 @@
 #include <assert.h>
 
 #include "sdkconfig.h"
-#include "esp_rom_multi_heap.h"
+#include "rom_patch_tlsf.h"
-#include "esp_rom_tlsf.h"
+#include "rom_patch_multi_heap.h"
 
 // Hook to force the linker to include this file
 void esp_rom_include_multi_heap_patch(void)

components/heap/rom_patches/rom_patch_tlsf.c

@@ -19,8 +19,7 @@
 #include <assert.h>
 
 #include "esp_rom_caps.h"
-#include "esp_rom_tlsf.h"
+#include "rom_patch_tlsf.h"
-#include "esp_rom_sys.h"
 
 #include "tlsf_block_functions.h"
 #include "tlsf_control_functions.h"