LoongArch: Do not relax against __[start|stop]_SECNAME symbol

bfd/elfnn-loongarch.c

@@ -5637,10 +5637,13 @@ loongarch_elf_relax_section (bfd *abfd, asection *sec,
 	}
       else
 	{
+	  /* Do not relax __[start|stop]_SECNAME, since the symbol value
+	     is not set yet.  */
 	  if (h != NULL
 	      && ((h->type == STT_GNU_IFUNC
 		   && r_type != R_LARCH_CALL36)
-		  || bfd_is_abs_section (h->root.u.def.section)))
+		  || bfd_is_abs_section (h->root.u.def.section)
+		  || h->start_stop))
 	    continue;
 
 	  /* The GOT entry of tls symbols must in current execute file or

ld/testsuite/ld-loongarch-elf/relax.exp

@@ -412,6 +412,8 @@ if [istarget loongarch64-*-*] {
 		  "relax-segment-max" \
 	      ] \
 	  ]
+
+     run_dump_test "start_stop"
     }
 
     run_ld_link_tests \

ld/testsuite/ld-loongarch-elf/start_stop.d

@@ -0,0 +1,13 @@
+#ld: -z norelro -pie -e0
+#objdump: -d
+
+.*:     file format .*
+
+
+Disassembly of section sec1:
+
+[0-9a-f]+ <_start>:
+ [0-9a-f]+:	[0-9a-f]+ 	pcalau12i   	\$a0, .*
+ [0-9a-f]+:	[0-9a-f]+ 	ld.d        	\$a0, \$a0, .*
+ [0-9a-f]+:	[0-9a-f]+ 	pcalau12i   	\$a0, .*
+ [0-9a-f]+:	[0-9a-f]+ 	ld.d        	\$a0, \$a0, .*

ld/testsuite/ld-loongarch-elf/start_stop.s

@@ -0,0 +1,10 @@
+	.section	sec1,"ax",@progbits
+	.globl	_start
+	.type   _start, @function
+_start:
+	la.got	$a0,__start_sec1
+	la.got	$a0,__stop_sec1
+	.size   _start, .-_start
+
+	.hidden	__start_sec1
+	.hidden	__stop_sec1