bfd/

	* elf-bfd.h: Formatting.
	(_bfd_elf_map_sections_to_segments): Declare.
	* elf-eh-frame.c (_bfd_elf_discard_section_eh_frame_hdr): Don't
	clear program_header_size.
	* elf.c (get_program_header_size): Move.  Don't use or set saved
	program_header_size here.
	(elf_modify_segment_map): New function.  Split out from..
	(assign_file_positions_for_load_sections): ..here.  Assert
	header size is correct.  Remove dead code.
	(_bfd_elf_map_sections_to_segments): Rename from
	map_sections_to_segments.  Make global.  Use get_program_header_size
	when we need estimate of header size.  Call elf_modify_segment_map.
	Set program_header_size.
	(print_segment_map): Delete.
	(_bfd_elf_sizeof_headers): If segment_map available, get the
	actual size.
	* elf32-arm.c (elf32_arm_symbian_modify_segment_map): Make safe
	for calling more than once.
	* elf32-bfin.c (elf32_bfinfdpic_modify_segment_map): Likewise.
	* elf32-frv.c (elf32_frvfdpic_modify_segment_map): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_modify_segment_map): Likewise.
	* elf32-i370.c (elf_backend_add_symbol_hook): Delete.
	(elf_backend_additional_program_headers): Delete.
	(elf_backend_modify_segment_map): Delete.
	* elf64-hppa.c (elf64_hppa_modify_segment_map): Convert to ISO C.
	* elfxx-ia64.c (elfNN_ia64_modify_segment_map): Likewise.
	* doc/bfdint.texi: Delete SIZEOF_HEADERS difficulties.
ld/
	* Makefile.am (ELF_DEPS): Define.  Use in emul file deps.  Fix
	many ELF emul file deps that incorrectly said they needed elf32.em
	instead of generic.em.  Add genelf.em as required.
	* Makefile.in: Regenerate.
	* ldlang.c (lang_process): Call ldemul_finish before
	lang_check_section_addresses.
	* emulparams/arcelf.sh: Generic elf target needs genelf.
	* emulparams/d30v_e.sh: Likewise.
	* emulparams/d30v_o.sh: Likewise.
	* emulparams/d30velf.sh: Likewise.
	* emulparams/elf32_dlx.sh: Likewise.
	* emulparams/elf32_i860.sh: Likewise.
	* emulparams/elf32fr30.sh: Likewise.
	* emulparams/elf32frv.sh: Likewise.
	* emulparams/elf32iq10.sh: Likewise.
	* emulparams/elf32iq2000.sh: Likewise.
	* emulparams/elf32mt.sh: Likewise.
	* emulparams/mn10200.sh: Likewise.
	* emulparams/or32.sh: Likewise.
	* emulparams/or32elf.sh: Likewise.
	* emulparams/pjelf.sh: Likewise.
	* emulparams/msp430all.sh: Likewise.  Extract common entries.
	* emulparams/pjlelf.sh: Include pjelf.sh.
	* emulparams/elf32frvfd.sh (EXTRA_EM_FILE): Unset.
	* emulparams/mn10300.sh (EXTRA_EM_FILE): Unset.
	* emultempl/elf-generic.em: New file.
	* emultempl/genelf.em: New file.
	* emultempl/elf32.em: Include elf-generic.em.
	(gld${EMULATION_NAME}_layout_sections_again): Delete.
	(gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_map_segments.
	* emultempl/hppaelf.em (hppaelf_layout_sections_again): Likewise.
	(gld${EMULATION_NAME}_finish): Rename from hppaelf_finish.  Call
	gld${EMULATION_NAME}_map_segments.
	(LDEMUL_FINISH): Update.
	* emultempl/mmo.em: Correct comment.  Include elf-bfd.h and
	source elf-generic.em.
	(mmo_finish): Call gld${EMULATION_NAME}_map_segments.
	* emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise.
	(gld${EMULATION_NAME}_finish): Rename from ppc_finish.  Call
	gld${EMULATION_NAME}_map_segments.
	(LDEMUL_FINISH): Update.
ld/testsuite/
	* ld-elf/eh1.d: Update for fewer program headers.
	* ld-elf/eh2.d: Likewise.
	* ld-elf/eh3.d: Likewise.

1 files changed, 0 insertions, 17 deletions

diff --git a/bfd/doc/bfdint.texi b/bfd/doc/bfdint.texi
index 98826fd..79813de 100644
--- a/bfd/doc/bfdint.texi
+++ b/bfd/doc/bfdint.texi
@@ -1744,23 +1744,6 @@ support.
 The processor function hooks and constants are ad hoc and need better
 documentation.
 
-When a linker script uses @samp{SIZEOF_HEADERS}, the ELF backend must
-guess at the number of program segments which will be required, in
-@samp{get_program_header_size}.  This is because the linker calls
-@samp{bfd_sizeof_headers} before it knows all the section addresses and
-sizes.  The ELF backend may later discover, when creating program
-segments, that more program segments are required.  This is currently
-reported as an error in @samp{assign_file_positions_for_segments}.
-
-In practice this makes it difficult to use @samp{SIZEOF_HEADERS} except
-with a carefully defined linker script.  Unfortunately,
-@samp{SIZEOF_HEADERS} is required for fast program loading on a native
-system, since it permits the initial code section to appear on the same
-page as the program segments, saving a page read when the program starts
-running.  Fortunately, native systems permit careful definition of the
-linker script.  Still, ideally it would be possible to use relaxation to
-compute the number of program segments.
-
 @node BFD glossary
 @section BFD glossary
 @cindex glossary for bfd