ELF output symbol hooks int vs. bfd_boolean

elf_backend_link_output_symbol_hook and elf_link_output_symstrtab may
return 2 when a symbol is to be discarded.  Update places that use
bfd_boolean rather than int for these functions.

	* elflink.c (elf_link_output_symstrtab): Make flinfo parameter
	a void pointer.
	(bfd_elf_final_link): Delete out_sym_func typedef and don't cast
	elf_link_output_symstrtab when calling output_arch_syms and
	output_arch_local_syms.
	* elf-bfd.h (struct elf_backend_data <elf_backend_output_arch_syms,
	elf_backend_output_arch_local_syms>): Change return type of func
	arg to match elf_link_output_symstrtab.
	* elf-vxworks.h (elf_vxworks_link_output_symbol_hook): Correct
	return type.
	* elf32-nds32.c (nds32_elf_output_symbol_hook): Correct return type.
	(nds32_elf_output_arch_syms): Correct func return type.

5 files changed, 29 insertions, 23 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 1fbbe33..5cdb6c8 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,5 +1,20 @@
 2021-03-29  Alan Modra  <amodra@gmail.com>
 
+	* elflink.c (elf_link_output_symstrtab): Make flinfo parameter
+	a void pointer.
+	(bfd_elf_final_link): Delete out_sym_func typedef and don't cast
+	elf_link_output_symstrtab when calling output_arch_syms and
+	output_arch_local_syms.
+	* elf-bfd.h (struct elf_backend_data <elf_backend_output_arch_syms,
+	elf_backend_output_arch_local_syms>): Change return type of func
+	arg to match elf_link_output_symstrtab.
+	* elf-vxworks.h (elf_vxworks_link_output_symbol_hook): Correct
+	return type.
+	* elf32-nds32.c (nds32_elf_output_symbol_hook): Correct return type.
+	(nds32_elf_output_arch_syms): Correct func return type.
+
+2021-03-29  Alan Modra  <amodra@gmail.com>
+
 	* elf-m10200.c (mn10200_elf_relocate_section): Return int.
 	* elf-m10300.c (mn10300_elf_relocate_section): Likewise.
 	* elf32-arc.c (elf_arc_relocate_section): Likewise.
diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 04785a8..dec6925 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1259,16 +1259,16 @@ struct elf_backend_data
      not handled in the hash table.  */
   bfd_boolean (*elf_backend_output_arch_local_syms)
     (bfd *, struct bfd_link_info *, void *,
-     bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
-		      struct elf_link_hash_entry *));
+     int (*) (void *, const char *, Elf_Internal_Sym *, asection *,
+	      struct elf_link_hash_entry *));
 
   /* This function, if defined, is called after all symbols are emitted
      into the symtab section.  It allows the backend to emit special
      global symbols not handled in the hash table.  */
   bfd_boolean (*elf_backend_output_arch_syms)
     (bfd *, struct bfd_link_info *, void *,
-     bfd_boolean (*) (void *, const char *, Elf_Internal_Sym *, asection *,
-		      struct elf_link_hash_entry *));
+     int (*) (void *, const char *, Elf_Internal_Sym *, asection *,
+	      struct elf_link_hash_entry *));
 
   /* Filter what symbols of the output file to include in the import
      library if one is created.  */
diff --git a/bfd/elf-vxworks.h b/bfd/elf-vxworks.h
index dbdf1a5..d0207a7 100644
--- a/bfd/elf-vxworks.h
+++ b/bfd/elf-vxworks.h
@@ -22,7 +22,7 @@
 bfd_boolean elf_vxworks_add_symbol_hook
   (bfd *, struct bfd_link_info *, Elf_Internal_Sym *, const char **,
    flagword *, asection **, bfd_vma *);
-bfd_boolean elf_vxworks_link_output_symbol_hook
+int elf_vxworks_link_output_symbol_hook
   (struct bfd_link_info *, const char *name, Elf_Internal_Sym *,
    asection *, struct elf_link_hash_entry *);
 bfd_boolean elf_vxworks_emit_relocs
diff --git a/bfd/elf32-nds32.c b/bfd/elf32-nds32.c
index 0e63dfb..f6a89a7 100644
--- a/bfd/elf32-nds32.c
+++ b/bfd/elf32-nds32.c
@@ -4677,7 +4677,7 @@ nds32_elf_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd,
 				  contents + address);
 }
 
-static bfd_boolean
+static int
 nds32_elf_output_symbol_hook (struct bfd_link_info *info,
 			      const char *name,
 			      Elf_Internal_Sym *elfsym ATTRIBUTE_UNUSED,
@@ -12461,10 +12461,10 @@ static bfd_boolean
 nds32_elf_output_arch_syms (bfd *output_bfd ATTRIBUTE_UNUSED,
 			    struct bfd_link_info *info,
 			    void *finfo ATTRIBUTE_UNUSED,
-			    bfd_boolean (*func) (void *, const char *,
-						 Elf_Internal_Sym *,
-						 asection *,
-						 struct elf_link_hash_entry *)
+			    int (*func) (void *, const char *,
+					 Elf_Internal_Sym *,
+					 asection *,
+					 struct elf_link_hash_entry *)
 			    ATTRIBUTE_UNUSED)
 {
   FILE *sym_ld_script = NULL;
diff --git a/bfd/elflink.c b/bfd/elflink.c
index c5db406..6be14e7 100644
--- a/bfd/elflink.c
+++ b/bfd/elflink.c
@@ -9767,12 +9767,13 @@ elf_link_sort_relocs (bfd *abfd, struct bfd_link_info *info, asection **psec)
 /* Add a symbol to the output symbol string table.  */
 
 static int
-elf_link_output_symstrtab (struct elf_final_link_info *flinfo,
+elf_link_output_symstrtab (void *finf,
 			   const char *name,
 			   Elf_Internal_Sym *elfsym,
 			   asection *input_sec,
 			   struct elf_link_hash_entry *h)
 {
+  struct elf_final_link_info *flinfo = finf;
   int (*output_symbol_hook)
     (struct bfd_link_info *, const char *, Elf_Internal_Sym *, asection *,
      struct elf_link_hash_entry *);
@@ -12662,13 +12663,8 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
   if (bed->elf_backend_output_arch_local_syms
       && (info->strip != strip_all || emit_relocs))
     {
-      typedef int (*out_sym_func)
-	(void *, const char *, Elf_Internal_Sym *, asection *,
-	 struct elf_link_hash_entry *);
-
       if (! ((*bed->elf_backend_output_arch_local_syms)
-	     (abfd, info, &flinfo,
-	      (out_sym_func) elf_link_output_symstrtab)))
+	     (abfd, info, &flinfo, elf_link_output_symstrtab)))
 	{
 	  ret = FALSE;
 	  goto return_local_hash_table;
@@ -12796,13 +12792,8 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
   if (bed->elf_backend_output_arch_syms
       && (info->strip != strip_all || emit_relocs))
     {
-      typedef int (*out_sym_func)
-	(void *, const char *, Elf_Internal_Sym *, asection *,
-	 struct elf_link_hash_entry *);
-
       if (! ((*bed->elf_backend_output_arch_syms)
-	     (abfd, info, &flinfo,
-	      (out_sym_func) elf_link_output_symstrtab)))
+	     (abfd, info, &flinfo, elf_link_output_symstrtab)))
 	{
 	  ret = FALSE;
 	  goto return_local_hash_table;