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ESP32/my_usb_project/components/custom_linker/CMakeLists.txt

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+idf_component_register()

ESP32/my_usb_project/components/custom_linker/sections.ld.in

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+  .flash.appdesc : ALIGN(0x10)
+  {
+    _rodata_reserved_start = ABSOLUTE(.);  /* This is a symbol marking the flash.rodata start, this can be used for mmu driver to maintain virtual address */
+    _rodata_start = ABSOLUTE(.);
+
+    *(.rodata_desc .rodata_desc.*)               /* Should be the first.  App version info.        DO NOT PUT ANYTHING BEFORE IT! */
+    *(.rodata_custom_desc .rodata_custom_desc.*) /* Should be the second. Custom app version info. DO NOT PUT ANYTHING BEFORE IT! */
+
+    /* Force to next 64KB boundary to avoid flash segment overlap with Rust rodata */
+    . = ALIGN(0x10000);
+  } >default_rodata_seg
+
+  .flash.rodata : ALIGN(0x10)
+  {
+    _flash_rodata_start = ABSOLUTE(.);
+
+    mapping[flash_rodata]
+
+    *(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
+    *(.gnu.linkonce.r.*)
+    *(.rodata1)
+    __XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
+    *(.xt_except_table)
+    *(.gcc_except_table .gcc_except_table.*)
+    *(.gnu.linkonce.e.*)