Add support for files that contain multiple symbol index tables. Fixes PR 15835

binutils	PR binutils/15835
	* readelf.c (struct elf_section_list): New structure.
	(symtab_shndx_hdr): Replace with symtab_shndx_list.
	(get_32bit_elf_symbols): Scan for a symbol index table matching
	the symbol table in use.
	(get_64bit_elf_symbols): Likewise.
	(process_section_headers): Handle multiple symbol index sections.

bfd	* elf-bfd.h (struct elf_section_list): New structure.
	(struct elf_obj_tdata): Replace symtab_shndx_hdr with
	symtab_shndx_list.  Delete symtab_shndx_section.
	(elf_symtab_shndx): Replace macro with elf_symtab_shndx_list.
	* elf.c (bfd_elf_get_syms): If symtab index sections are present,
	scan them for the section that matches the provided symbol table.
	(bfd_section_from_shdr): Record all SHT_SYMTAB_SHNDX sections.
	(assign_section_numbers): Use the first symtab index table in the
	list.
	(_bfd_elf_compute_section_file_positions): Replace use of
	symtab_shndx_hdr with use of symtab_shndx_list.
	(find_section_in_list): New function.
	(assign_file_postions_except_relocs): Use new function.
	(_bfd_elf_copy_private_symbol_data): Likewise.
	(swap_out_syms): Handle multiple symbol table index sections.
	* elf32-m32c.c (m32c_elf_relax_section): Replace use of
	symtab_shndx_hdr with use of symtab_shndx_list.
	* elf32-rl78.c (rl78_elf_relax_section): Likewise.
	* elf32-rx.c (rx_relax_section): Likewise.
	* elf32-v850.c (v850_elf_relax_delete_bytes): Likewise.
	* elflink.c (bfd_elf_final_link): Likewise.

1 files changed, 11 insertions, 3 deletions

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index e0e372f..b7ca2d0 100644
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -1654,6 +1654,14 @@ enum elf_gnu_symbols
     elf_gnu_symbol_all = (elf_gnu_symbol_ifunc | elf_gnu_symbol_unique)
   };
 
+typedef struct elf_section_list
+{
+  Elf_Internal_Shdr          hdr;
+  unsigned int               ndx;
+  struct elf_section_list *  next;
+} elf_section_list;
+  
+    
 /* Some private data is stashed away for future use using the tdata pointer
    in the bfd structure.  */
 
@@ -1670,7 +1678,7 @@ struct elf_obj_tdata
   Elf_Internal_Shdr dynversym_hdr;
   Elf_Internal_Shdr dynverref_hdr;
   Elf_Internal_Shdr dynverdef_hdr;
-  Elf_Internal_Shdr symtab_shndx_hdr;
+  elf_section_list * symtab_shndx_list;
   bfd_vma gp;				/* The gp value */
   unsigned int gp_size;			/* The gp size */
   unsigned int num_elf_sections;	/* elf_sect_ptr size */
@@ -1745,7 +1753,7 @@ struct elf_obj_tdata
   Elf_Internal_Shdr **group_sect_ptr;
   int num_group;
 
-  unsigned int symtab_section, symtab_shndx_section, dynsymtab_section;
+  unsigned int symtab_section, dynsymtab_section;
   unsigned int dynversym_section, dynverdef_section, dynverref_section;
 
   /* An identifier used to distinguish different target
@@ -1787,7 +1795,7 @@ struct elf_obj_tdata
 #define elf_stack_flags(bfd)	(elf_tdata(bfd) -> o->stack_flags)
 #define elf_shstrtab(bfd)	(elf_tdata(bfd) -> o->strtab_ptr)
 #define elf_onesymtab(bfd)	(elf_tdata(bfd) -> symtab_section)
-#define elf_symtab_shndx(bfd)	(elf_tdata(bfd) -> symtab_shndx_section)
+#define elf_symtab_shndx_list(bfd)	(elf_tdata(bfd) -> symtab_shndx_list)
 #define elf_strtab_sec(bfd)	(elf_tdata(bfd) -> o->strtab_section)
 #define elf_shstrtab_sec(bfd)	(elf_tdata(bfd) -> o->shstrtab_section)
 #define elf_symtab_hdr(bfd)	(elf_tdata(bfd) -> symtab_hdr)