is_target_special_symbol fixes for commit 68bbe1183379

	* elf.c (_bfd_elf_is_local_label_name): Don't segv on NULL name.
	* elf32-v850.c (v850_elf_is_local_label_name): Likewise.
	* elfnn-riscv.c (riscv_elf_is_target_special_symbol): Likewise.

bfd/elf.c

diff --git a/bfd/elf.c b/bfd/elf.c
index 39ee641..4012d99 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -9725,6 +9725,9 @@
 _bfd_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
 			      const char *name)
 {
+  if (!name)
+    return false;
+
   /* Normal local symbols start with ``.L''.  */
   if (name[0] == '.' && name[1] == 'L')
     return true;

bfd/elf32-v850.c

diff --git a/bfd/elf32-v850.c b/bfd/elf32-v850.c
index 85cbcbc..8d61ebb6 100644
--- a/bfd/elf32-v850.c
+++ b/bfd/elf32-v850.c
@@ -1933,8 +1933,13 @@
 static bool
 v850_elf_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, const char *name)
 {
-  return (   (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
-	  || (name[0] == '_' &&  name[1] == '.' && name[2] == 'L' && name[3] == '_'));
+  if (!name)
+    return false;
+  if (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
+    return true;
+  if (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_')
+    return true;
+  return false;
 }
 
 static bool

bfd/elfnn-riscv.c

diff --git a/bfd/elfnn-riscv.c b/bfd/elfnn-riscv.c
index 90ecc27..4844412 100644
--- a/bfd/elfnn-riscv.c
+++ b/bfd/elfnn-riscv.c
@@ -5610,9 +5610,11 @@
 static bool
 riscv_elf_is_target_special_symbol (bfd *abfd, asymbol *sym)
 {
+  if (!sym->name)
+    return false;
   /* PR27584, local and empty symbols.  Since they are usually
      generated for pcrel relocations.  */
-  return (!strcmp (sym->name, "")
+  return (!sym->name[0]
 	  || _bfd_elf_is_local_label_name (abfd, sym->name)
 	  /* PR27916, mapping symbols.  */
 	  || riscv_elf_is_mapping_symbols (sym->name));