arch/risc-v: add .type directives to exception/boot assembly labels

Several risc-v assembly labels are .global but untyped, so mkallsyms.py
(which only collects STT_FUNC symbols) silently drops them from the
ALLSYMS table, and backtraces/%pS print raw addresses instead of names.

Add .type <name>, function to the affected labels, matching existing
convention elsewhere in the tree.

Signed-off-by: liang.huang <liang.huang@houmo.ai>
Assisted-by: Claude Code:claude-sonnet-5

arch/risc-v/src/bl808/bl808_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/c906/c906_head.S

@@ -42,6 +42,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/common/espressif/esp_head.S

@@ -36,6 +36,7 @@
  ****************************************************************************/
 
   .global  __start
+  .type    __start, function
 
 /****************************************************************************
  * Section: .text

arch/risc-v/src/common/riscv_exception_common.S

@@ -108,6 +108,8 @@
   .global exception_common
   .global return_from_exception
   .global return_from_syscall
+  .type   exception_common, function
+  .type   return_from_exception, function
   .align  8
 
 exception_common:
@@ -337,6 +339,7 @@ return_from_exception:
 
   .section EXCEPTION_SECTION
   .global riscv_jump_to_user
+  .type   riscv_jump_to_user, function
 
 riscv_jump_to_user:
 

arch/risc-v/src/eic7700x/eic7700x_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/esp32c3-legacy/esp32c3_head.S

@@ -35,6 +35,7 @@
  ****************************************************************************/
 
   .global  __start
+  .type    __start, function
 
 /****************************************************************************
  * Section: .text

arch/risc-v/src/fe310/fe310_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/gd32vw55x/gd32vw55x_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/hpm6000/hpm_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
   /* reset mstatus to 0*/

arch/risc-v/src/hpm6750/hpm6750_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
   /* reset mstatus to 0*/

arch/risc-v/src/jh7110/jh7110_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/k210/k210_head.S

@@ -42,6 +42,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/k230/k230_head.S

@@ -48,12 +48,14 @@
 #ifdef CONFIG_NUTTSBI
 
   .global __start_s
+  .type   __start_s, function
 
 __start_s:
 
 #else
 
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/litex/litex_head.S

@@ -39,6 +39,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/litex/litex_shead.S

@@ -43,6 +43,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 /****************************************************************************
  * Name: __start

arch/risc-v/src/mpfs/mpfs_head.S

@@ -44,6 +44,7 @@
 
   .section .start, "ax"
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/mpfs/mpfs_shead.S

@@ -44,8 +44,10 @@
   .section .start, "ax"
 #ifdef CONFIG_NUTTSBI
   .global __start_s
+  .type   __start_s, function
 #else
   .global __start
+  .type   __start, function
 #endif
 
 /****************************************************************************

arch/risc-v/src/nuttsbi/sbi_head.S

@@ -39,6 +39,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/qemu-rv/qemu_rv_head.S

@@ -42,10 +42,12 @@
   .section .text
 #ifndef CONFIG_NUTTSBI
   .global __start
+  .type   __start, function
 
 __start:
 #else
   .global __start_s
+  .type   __start_s, function
 
 __start_s:
 #endif

arch/risc-v/src/rp23xx-rv/rp23xx_head.S

@@ -40,6 +40,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start:
 

arch/risc-v/src/rv32m1/rv32m1_head.S

@@ -38,6 +38,7 @@
   .global exception_common
   .global return_from_exception
   .global __start
+  .type   __start, function
 
   .section .text
 

arch/risc-v/src/sg2000/sg2000_head.S

@@ -41,6 +41,7 @@
 
   .section .text
   .global __start
+  .type   __start, function
 
 __start: