esp: add linker fragment file to locate custom swift sections to proper memory regions

erhankur · erhankur · commit 9d9e5673918b · 2024-06-29T03:34:56.000+02:00
diff --git a/esp32-led-blink-sdk/.gitignore b/esp32-led-blink-sdk/.gitignore
@@ -0,0 +1,5 @@
+# ESP-IDF default build directory name
+build
+
+# lock files for examples and components
+dependencies.lock
diff --git a/esp32-led-blink-sdk/dependencies.lock b/esp32-led-blink-sdk/dependencies.lock
diff --git a/esp32-led-blink-sdk/main/CMakeLists.txt b/esp32-led-blink-sdk/main/CMakeLists.txt
@@ -1,6 +1,7 @@
 idf_component_register(
     SRCS "Dummy.c"
     INCLUDE_DIRS "."
+    LDFRAGMENTS "linker.lf"
 )
 
 execute_process(COMMAND xcrun -f swiftc OUTPUT_VARIABLE SWIFTC OUTPUT_STRIP_TRAILING_WHITESPACE)
diff --git a/esp32-led-blink-sdk/main/linker.lf b/esp32-led-blink-sdk/main/linker.lf
@@ -0,0 +1,20 @@
+[sections:flash_text_swift]
+entries:
+    .swift_modhash+
+
+[sections:dram0_swift]
+entries:
+    .got+
+    .got.plt+
+
+[scheme:swift_default]
+entries:
+    flash_text_swift -> flash_text
+    dram0_swift -> dram0_data
+
+[mapping:swift_default]
+archive: *
+entries:
+    * (swift_default);
+    flash_text_swift -> flash_text SURROUND (swift_text),
+    dram0_swift -> dram0_data SURROUND (swift_dram0)
diff --git a/esp32-led-strip-sdk/main/.gitignore b/esp32-led-strip-sdk/main/.gitignore
@@ -0,0 +1,5 @@
+# ESP-IDF default build directory name
+build
+
+# lock files for examples and components
+dependencies.lock
diff --git a/esp32-led-strip-sdk/main/CMakeLists.txt b/esp32-led-strip-sdk/main/CMakeLists.txt
@@ -1,6 +1,7 @@
 idf_component_register(
     SRCS "Dummy.c"
     INCLUDE_DIRS "."
+    LDFRAGMENTS "linker.lf"
 )
 
 execute_process(COMMAND xcrun -f swiftc OUTPUT_VARIABLE SWIFTC OUTPUT_STRIP_TRAILING_WHITESPACE)
diff --git a/esp32-led-strip-sdk/main/linker.lf b/esp32-led-strip-sdk/main/linker.lf
@@ -0,0 +1,20 @@
+[sections:flash_text_swift]
+entries:
+    .swift_modhash+
+
+[sections:dram0_swift]
+entries:
+    .got+
+    .got.plt+
+
+[scheme:swift_default]
+entries:
+    flash_text_swift -> flash_text
+    dram0_swift -> dram0_data
+
+[mapping:swift_default]
+archive: *
+entries:
+    * (swift_default);
+    flash_text_swift -> flash_text SURROUND (swift_text),
+    dram0_swift -> dram0_data SURROUND (swift_dram0)

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,7 @@`
`1`	`1`	`idf_component_register(`
`2`	`2`	`SRCS "Dummy.c"`
`3`	`3`	`INCLUDE_DIRS "."`
	`4`	`+ LDFRAGMENTS "linker.lf"`
`4`	`5`	`)`
`5`	`6`
`6`	`7`	`execute_process(COMMAND xcrun -f swiftc OUTPUT_VARIABLE SWIFTC OUTPUT_STRIP_TRAILING_WHITESPACE)`