_bfd_alloc_and_read

This patch provides two new inline functions that are then used in
places that allocate memory, read from file, and then deallocate on a
read failure.

	* libbfd-in.h (_bfd_alloc_and_read, _bfd_malloc_and_read): New.
	* aoutx.h (aout_get_external_symbols): Replace calls to
	bfd_[m]alloc and bfd_bread with call to _bfd_[m]alloc_and_read.
	(slurp_reloc_table): Likewise.
	* archive.c (do_slurp_bsd_armap): Likewise.
	(do_slurp_coff_armap): Likewise.
	* archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise.
	* coff-rs6000.c (_bfd_xcoff_slurp_armap): Likewise.
	* coff64-rs6000.c (xcoff64_slurp_armap): Likewise.
	* coffcode.h (coff_set_arch_mach_hook, buy_and_read): Likewise.
	* coffgen.c (coff_real_object_p, coff_object_p, build_debug_section),
	(_bfd_coff_get_external_symbols): Likewise.
	* ecoff.c (ecoff_slurp_symbolic_header),
	(_bfd_ecoff_slurp_symbolic_info, ecoff_slurp_reloc_table),
	(_bfd_ecoff_slurp_armap, ecoff_link_add_object_symbols, READ),
	(ecoff_indirect_link_order): Likewise.
	* elf.c (bfd_elf_get_str_section, setup_group, elf_read_notes),
	(_bfd_elf_slurp_version_tables): Likewise.
	* elf32-m32c.c (m32c_elf_relax_section): Likewise.
	* elf32-rl78.c (rl78_elf_relax_section): Likewise.
	* elf32-rx.c (elf32_rx_relax_section): Likewise.
	* elf64-alpha.c (READ): Likewise.
	* elf64-mips.c (mips_elf64_slurp_one_reloc_table): Likewise.
	* elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Likewise.
	* elfcode.h (elf_slurp_symbol_table),
	(elf_slurp_reloc_table_from_section): Likewise.
	* elflink.c (elf_link_add_object_symbols),
	(elf_link_check_versioned_symbol): Likewise.
	* elfxx-mips.c (READ): Likewise.
	* i386lynx.c (slurp_reloc_table): Likewise.
	* lynx-core.c (lynx_core_file_p): Likewise.
	* mach-o.c (bfd_mach_o_canonicalize_relocs),
	(bfd_mach_o_read_symtab_strtab, bfd_mach_o_alloc_and_read),
	(bfd_mach_o_read_prebound_dylib, bfd_mach_o_read_dyld_content
	* pdp11.c (aout_get_external_symbols, slurp_reloc_table
	* pef.c (bfd_pef_print_loader_section, bfd_pef_scan_start_address),
	(bfd_pef_parse_symbols): Likewise.
	* peicode.h (pe_ILF_object_p, pe_bfd_object_p
	* som.c (setup_sections, som_slurp_string_table),
	(som_slurp_reloc_table, som_bfd_count_ar_symbols),
	(som_bfd_fill_in_ar_symbols): Likewise.
	* vms-alpha.c (module_find_nearest_line, evax_bfd_print_dst),
	(evax_bfd_print_image): Likewise.
	* vms-lib.c (_bfd_vms_lib_archive_p): Likewise.
	* wasm-module.c (wasm_scan): Likewise.
	* xcofflink.c (xcoff_link_add_symbols): Likewise.
	* xsym.c (bfd_sym_read_name_table),
	(bfd_sym_print_type_information_table_entry): Likewise.
	* libbfd.h: Regenerate.

1 files changed, 6 insertions, 29 deletions

diff --git a/bfd/xsym.c b/bfd/xsym.c
index 9c714c64809..3071a9de3f7 100644
--- a/bfd/xsym.c
+++ b/bfd/xsym.c
@@ -127,24 +127,12 @@ bfd_sym_valid (bfd *abfd)
 unsigned char *
 bfd_sym_read_name_table (bfd *abfd, bfd_sym_header_block *dshb)
 {
-  unsigned char *rstr;
-  long ret;
   size_t table_size = dshb->dshb_nte.dti_page_count * dshb->dshb_page_size;
   size_t table_offset = dshb->dshb_nte.dti_first_page * dshb->dshb_page_size;
 
-  rstr = bfd_alloc (abfd, table_size);
-  if (rstr == NULL)
-    return rstr;
-
-  bfd_seek (abfd, table_offset, SEEK_SET);
-  ret = bfd_bread (rstr, table_size, abfd);
-  if (ret < 0 || (unsigned long) ret != table_size)
-    {
-      bfd_release (abfd, rstr);
-      return NULL;
-    }
-
-  return rstr;
+  if (bfd_seek (abfd, table_offset, SEEK_SET) != 0)
+    return FALSE;
+  return _bfd_alloc_and_read (abfd, table_size, table_size);
 }
 
 void
@@ -1808,22 +1796,11 @@ bfd_sym_print_type_information_table_entry (bfd *abfd,
 
   fprintf (f, "\n            ");
 
-  buf = malloc (entry->physical_size);
-  if (buf == NULL)
-    {
-      fprintf (f, "[ERROR]\n");
-      return;
-    }
-  if (bfd_seek (abfd, entry->offset, SEEK_SET) < 0)
-    {
-      fprintf (f, "[ERROR]\n");
-      free (buf);
-      return;
-    }
-  if (bfd_bread (buf, entry->physical_size, abfd) != entry->physical_size)
+  if (bfd_seek (abfd, entry->offset, SEEK_SET) != 0
+      || (buf = _bfd_malloc_and_read (abfd, entry->physical_size,
+				      entry->physical_size)) == NULL)
     {
       fprintf (f, "[ERROR]\n");
-      free (buf);
       return;
     }