* elfcode.h (elf_set_section_contents): Support calling the backend

	function elf_backend_begin_write_processing when just beginning to
	write an object file.

	* libelf.h (elf_backend_begin_write_processing): Declare.

	* elf{32,64}-target.h (elf_backend_begin_write_processing): Provide
	a default definition.
	(elf{32,64}_bed): Add elf_backend_begin_write_processing.

	* elf32-hppa.h (elf_hppa_tc_symbol): Delete extern declaration.
	(elf_hppa_tc_make_sections): Likewise.

	* elf32-hppa.c (symext_chain_built): Delete.
	(symext_chain_size): Renamed from symextn_contents_real_size.
	(elf32_hppa_backend_{begin,final}_write_processing): New functions.
	(add_entry_to_symext_chain): New function.
	(hppa_elf_set_section_contents): Ignore writes to the symbol extension
	section until it's been rebuilt internally.
	(hppa_elf_get_section_contents): Symbol extension section is no
	longer special.
	(elf_backend_{begin,final}_write_processing): Define.
	(elf_hppa_tc_make_sections): Simplify now that much code has
	migrated into elf32_hppa_backend_{being,final}_write_processing.

5 files changed, 50 insertions, 0 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index f2f946d..085fc84 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,30 @@
+Thu Apr  7 11:10:51 1994  Jeffrey A. Law  (law@snake.cs.utah.edu)
+
+	* elfcode.h (elf_set_section_contents): Support calling the backend
+	function elf_backend_begin_write_processing when just beginning to
+	write an object file.
+
+	* libelf.h (elf_backend_begin_write_processing): Declare.
+
+	* elf{32,64}-target.h (elf_backend_begin_write_processing): Provide
+	a default definition.
+	(elf{32,64}_bed): Add elf_backend_begin_write_processing.
+	
+	* elf32-hppa.h (elf_hppa_tc_symbol): Delete extern declaration.
+	(elf_hppa_tc_make_sections): Likewise.
+
+	* elf32-hppa.c (symext_chain_built): Delete.
+	(symext_chain_size): Renamed from symextn_contents_real_size.
+	(elf32_hppa_backend_{begin,final}_write_processing): New functions.
+	(add_entry_to_symext_chain): New function.
+	(hppa_elf_set_section_contents): Ignore writes to the symbol extension
+	section until it's been rebuilt internally.
+	(hppa_elf_get_section_contents): Symbol extension section is no
+	longer special.
+	(elf_backend_{begin,final}_write_processing): Define.
+	(elf_hppa_tc_make_sections): Simplify now that much code has
+	migrated into elf32_hppa_backend_{being,final}_write_processing.
+
 Wed Apr  6 17:24:14 1994  Ian Lance Taylor  (ian@tweedledumb.cygnus.com)
 
 	Add new target vectors to read the dynamic symbols and dynamic
diff --git a/bfd/elf32-target.h b/bfd/elf32-target.h
index f5a1fae..dc0ccf6 100644
--- a/bfd/elf32-target.h
+++ b/bfd/elf32-target.h
@@ -91,6 +91,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #ifndef elf_backend_section_from_bfd_section
 #define elf_backend_section_from_bfd_section	0
 #endif
+#ifndef elf_backend_begin_write_processing
+#define elf_backend_begin_write_processing	0
+#endif
 #ifndef elf_backend_final_write_processing
 #define elf_backend_final_write_processing	0
 #endif
@@ -119,6 +122,7 @@ static CONST struct elf_backend_data elf32_bed =
   elf_backend_section_from_shdr,
   elf_backend_fake_sections,
   elf_backend_section_from_bfd_section,
+  elf_backend_begin_write_processing,
   elf_backend_final_write_processing,
   elf_backend_ecoff_debug_swap
 };
diff --git a/bfd/elf64-target.h b/bfd/elf64-target.h
index e32f114..3194073 100644
--- a/bfd/elf64-target.h
+++ b/bfd/elf64-target.h
@@ -94,6 +94,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #ifndef elf_backend_section_from_bfd_section
 #define elf_backend_section_from_bfd_section	0
 #endif
+#ifndef elf_backend_begin_write_processing
+#define elf_backend_begin_write_processing	0
+#endif
 #ifndef elf_backend_final_write_processing
 #define elf_backend_final_write_processing	0
 #endif
@@ -122,6 +125,8 @@ static CONST struct elf_backend_data elf64_bed =
   elf_backend_section_from_shdr,
   elf_backend_fake_sections,
   elf_backend_section_from_bfd_section,
+  elf_backend_begin_write_processing,
+  elf_backend_final_write_processing,
   elf_backend_ecoff_debug_swap
 };
 
diff --git a/bfd/elfcode.h b/bfd/elfcode.h
index 8a54d4b..5fd4299 100644
--- a/bfd/elfcode.h
+++ b/bfd/elfcode.h
@@ -2374,6 +2374,10 @@ NAME(bfd_elf,write_object_contents) (abfd)
 
   if (abfd->output_has_begun == false)
     {
+      /* Do any elf backend specific processing first.  */
+      if (bed->elf_backend_begin_write_processing)
+	(*bed->elf_backend_begin_write_processing) (abfd);
+
       if (prep_headers (abfd) == false)
 	return false;
       if (elf_compute_section_file_positions (abfd) == false)
@@ -3233,6 +3237,12 @@ elf_set_section_contents (abfd, section, location, offset, count)
 
   if (abfd->output_has_begun == false)	/* set by bfd.c handler? */
     {
+      struct elf_backend_data *bed = get_elf_backend_data (abfd);
+
+      /* Do any elf backend specific processing first.  */
+      if (bed->elf_backend_begin_write_processing)
+	(*bed->elf_backend_begin_write_processing) (abfd);
+
       /* do setup calculations (FIXME) */
       if (prep_headers (abfd) == false)
 	return false;
diff --git a/bfd/libelf.h b/bfd/libelf.h
index 9eb93ec..ce22cc1 100644
--- a/bfd/libelf.h
+++ b/bfd/libelf.h
@@ -149,6 +149,10 @@ struct elf_backend_data
   boolean (*elf_backend_section_from_bfd_section)
     PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *, int *retval));
 
+  /* A function to do any beginning processing needed for the ELF file
+     before building the ELF headers and computing file positions.  */
+  void (*elf_backend_begin_write_processing) PARAMS ((bfd *));
+
   /* A function to do any final processing needed for the ELF file
      before writing it out.  */
   void (*elf_backend_final_write_processing) PARAMS ((bfd *));