mips_gprel_reloc segfault

[Alan Modra]

Similarly for the elf mips support.

	* elf32-mips.c (mips_elf_final_gp): Don't segfault on symbols
	in any of the bfd_is_const_section sections.
	* elf64-mips.c (mips_elf64_final_gp): Likewise.
	* elfn32-mips.c (mips_elf_final_gp): Likewise.

diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c
index a4c88c6b089..8989011edc9 100644
--- a/bfd/elf32-mips.c
+++ b/bfd/elf32-mips.c
@@ -1720,8 +1720,7 @@ static bfd_reloc_status_type
 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bool relocatable,
 		   char **error_message, bfd_vma *pgp)
 {
-  if (bfd_is_und_section (symbol->section)
-      && ! relocatable)
+  if (output_bfd == NULL)
     {
       *pgp = 0;
       return bfd_reloc_undefined;
diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c
index 6fa9d44300c..7f6f7ef0053 100644
--- a/bfd/elf64-mips.c
+++ b/bfd/elf64-mips.c
@@ -3427,8 +3427,7 @@ static bfd_reloc_status_type
 mips_elf64_final_gp (bfd *output_bfd, asymbol *symbol, bool relocatable,
 		     char **error_message, bfd_vma *pgp)
 {
-  if (bfd_is_und_section (symbol->section)
-      && ! relocatable)
+  if (output_bfd == NULL)
     {
       *pgp = 0;
       return bfd_reloc_undefined;
diff --git a/bfd/elfn32-mips.c b/bfd/elfn32-mips.c
index 1ae51a4648c..07b753f0cc1 100644
--- a/bfd/elfn32-mips.c
+++ b/bfd/elfn32-mips.c
@@ -3254,8 +3254,7 @@ static bfd_reloc_status_type
 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bool relocatable,
 		   char **error_message, bfd_vma *pgp)
 {
-  if (bfd_is_und_section (symbol->section)
-      && ! relocatable)
+  if (output_bfd == NULL)
     {
       *pgp = 0;
       return bfd_reloc_undefined;

-- 
Alan Modra
Australia Development Lab, IBM