fix(esp_system): enable linking with LLD on RISC-V targets

components/esp_tee/subproject/main/arch/riscv/esp_tee_vector_table_clic.S

@@ -17,11 +17,16 @@
     #define ASTDBG_ISR _tee_ns_intr_handler
 #endif // CONFIG_ESP_SYSTEM_HW_STACK_GUARD
 
-    .section .exception_vectors_table.text
+    .section .exception_vectors_table.text, "ax"
 
     /* Prevent the compiler from generating 2-byte instruction in the vector tables */
     .option push
     .option norvc
+    /* The vector tables have a fixed layout, so keep linker relaxation from
+     * touching them: with relaxation enabled the assembler emits the .balign
+     * padding as R_RISCV_ALIGN-managed bytes, of which GNU ld may retain more
+     * than the exact amount, changing the table size between builds. */
+    .option norelax
 
     /**
      * Non-hardware vectored interrupt entry. MTVEC CSR points here.

components/esp_tee/subproject/main/ld/elf_misc.ld.in

@@ -56,6 +56,7 @@
 
   .comment 0 : { *(.comment) }
   .note.GNU-stack 0: { *(.note.GNU-stack) }
+#include "ld.elf.internal.sections"
 
 #if CONFIG_IDF_TARGET_ARCH_RISCV
   .riscv.attributes 0: { *(.riscv.attributes) }
@@ -70,5 +71,18 @@
     */
    *(.rela.*)
    *(.got .got.plt) /* TODO: GCC-382 */
+
+   /**
+    * GNU ld removes them via --gc-sections; LLD treats them as GC roots,
+    * so they must be discarded explicitly to not trip --orphan-handling=error.
+    */
+   *(.init)
+   *(.init_array)
+   *(.init_array.*)
+   *(.fini)
+   *(.fini_array)
+   *(.fini_array.*)
+   *(.eh_frame_hdr)
+   *(.eh_frame)
   }
 #endif

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

@@ -18,11 +18,13 @@ target_linker_script(${COMPONENT_LIB} INTERFACE "${heap_dir}/port/${target}/ld/$
 
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/ld")
 
+idf_component_get_property(esp_system_dir esp_system COMPONENT_DIR)
+
 # Preprocess esp_tee.ld.in linker script to include configuration, becomes esp_tee.ld
 add_custom_command(
     OUTPUT ${ld_output}
     COMMAND "${CMAKE_C_COMPILER}" -C -P -x c -E -o ${ld_output} -I ${config_dir}
-            -I "${CMAKE_CURRENT_LIST_DIR}" ${ld_input}
+            -I "${CMAKE_CURRENT_LIST_DIR}" -I "${esp_system_dir}/ld" ${ld_input}
     MAIN_DEPENDENCY ${ld_input}
     DEPENDS ${sdkconfig_header}
     COMMENT "Generating esp_tee.ld linker script..."