Commit Graph

13 Commits

Author SHA1 Message Date
Alan Modra 1db6f99030 Don't merge sections with differing MASKPROC or MASKOS flags
Not just SHF_EXCLUDE but any of these flags ought to prevent merging
of sections for ld -r.

	* ldelf.c (elf_orphan_compatible): Return false when two sections
	have differing SHF_MASKPROC or SHF_MASKOS flags.
2020-03-11 15:00:44 +10:30
Alan Modra e310298cf3 PR25593, --as-needed breaks DT_NEEDED order with linker plugin
This patch delays setting up DT_NEEDED dynamic tags until all object
files and libraries have been opened and their symbols processed,
rather than adding the tags while processing symbols.  Tags are
ordered according to the position of the associated library on the
command line and linker scripts.  It is still possible with
--as-needed libs that are mentioned more than once for tags to be
ordered according to which mention was needed.  For example with
"--as-needed a.so b.so c.so b.so" when b.so is not needed by a.so or
any other prior object file but is needed by c.so, the order of tags
will be "A C B".

bfd/
	PR 25593
	* elf-bfd.h (struct elf_link_hash_table): Rename "loaded" to
	"dyn_loaded".
	(bfd_elf_add_dt_needed_tag): Declare.
	* elf-strtab.c (_bfd_elf_strtab_restore): Handle NULL buf.
	* elflink.c (bfd_elf_add_dt_needed_tag): Make global and rename
	from elf_add_dt_needed_tag.  Remove soname and doit param.
	(elf_link_add_object_symbols): Don't use elf_add_dt_needed_tag
	to see whether as-needed lib is already loaded, use dyn_loaded
	list instead.  When saving and restoring around as-needed lib
	handle possibility that dynstr has not been initialised.  Don't
	add DT_NEEDED tags here.  Limit dyn_loaded list to dynamic libs.
	Mark libs loaded via DT_NEEDED entries of other libs with
	DYN_NO_NEEDED if they should not be mentioned in DT_NEEDED of
	the output.
	(elf_link_check_versioned_symbol): Remove now unneccesary
	DYNAMIC check when traversing dyn_loaded list.
ld/
	PR 25593
	* ldelf.c (ldelf_try_needed): Add DT_NEEDED lib to input_bfds.
	(ldelf_after_open): Save state of input_bfds list before loading
	DT_NEEDED libs.  Traverse input_bfds list adding DT_NEEDED tags.
	Restore input_bfds list.
	* testsuite/ld-cris/gotplt1.d: Adjust for changed .dynstr order.
2020-02-26 10:37:25 +10:30
H.J. Lu 9b538ba71f ELF: Discard a section if any of its linked-to sections has been discarded
Add ldelf_before_place_orphans to call before lang_place_orphans to
discard a section if any of its linked-to sections has been discarded.

	PR ld/25022
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	before_place_orphans_default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Use
	ldelf_before_place_orphans.
	* ldelf.c (ldelf_before_place_orphans): New.
	* ldelf.h (ldelf_before_place_orphans): Likewise.
	* ldemul.c (ldemul_before_place_orphans): Likewise.
	(before_place_orphans_default): Likewise.
	* ldemul.h (ldemul_before_place_orphans): Likewise.
	(before_place_orphans_default): Likewise.
	(ld_emulation_xfer_struct): Add before_place_orphans.
	* ldlang.c (lang_process): Call ldemul_before_place_orphans
	before lang_place_orphans.
	* testsuite/ld-elf/pr25022.d: New file.
	* testsuite/ld-elf/pr25022.s: Likewise.
	* testsuite/ld-elf/pr25022.t: Likewise.
2020-02-06 19:43:03 -08:00
Alan Modra ef8f08ca13 PR25477, ld 2.34 tries to load ${prefix}/etc/ld.so.conf
PR 25477
	* ldelf.c (ldelf_check_ld_so_conf): Add prefix parameter and
	correct concat.
	(ldelf_after_open): Add prefix parameter.
	* ldelf.h (ldelf_after_open): Update prototype.
	* emultempl/elf.em (gld${EMULATION_NAME}_after_open): Pass $prefix
	to ldelf_after_open.
	* Makefile.am: Correct z80 dependencies.
	* Makefile.in: Regenerate.
2020-01-29 10:39:20 +10:30
Alan Modra b3adc24a07 Update year range in copyright notice of binutils files 2020-01-01 18:42:54 +10:30
Alan Modra 8ce18f9cdf Avoid ubsan bug complaining about &p->field
I reckon it's quite OK to write &p->field in C when p might be NULL,
and lots of old C programmers probably agree with me.  However, ubsan
disagrees and so do some people I respect.  I suspect C++ influence is
to blame for the ubsan behaviour.  See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92634.  So far no one has
educated me as to why I'm wrong to claim that there isn't anything in
the C standard to say that p->field is always (*p).field.  Note 79
doesn't quite do that because it doesn't cover null pointers.  If
there was such an equivalence then you could claim &p->field has a
null pointer reference when p is NULL, even though no C compiler would
ever dereference p.

Anyway, to silence ubsan I'm going to apply the following though I
prefer to avoid casts when possible.  And I'm using (void *)
deliberately because this is C, not C++!

	* ldlang.c (lang_output_section_find_by_flags): Don't use &p->field
	when p might be NULL.
	* ldelf.c (output_rel_find, ldelf_place_orphan): Likewise.
	(insert_os_after, lang_insert_orphan, lookup_name): Likewise.
	(strip_excluded_output_sections, lang_clear_os_map): Likewise.
	(lang_check, lang_for_each_input_file): Likewise.
	(lang_reset_memory_regions, find_replacements_insert_point): Likewise.
	(find_rescan_insertion, lang_propagate_lma_regions): Likewise.
	(lang_record_phdrs): Likewise.
	* emultempl/alphaelf.em (alpha_after_open): Likewise.
	* emultempl/mmo.em (mmo_place_orphan): Likewise.
	* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/ppc32elf.em (ppc_after_check_relocs): Likewise.
	* emultempl/spuelf.em (spu_before_allocation): Likewise.
	(embedded_spu_file): Likewise.
2019-12-26 17:49:03 +10:30
Nick Alcock 1ff6de0312 bfd, ld: add CTF section linking
This is quite complicated because the CTF section's contents depend on
the final contents of the symtab and strtab, because it has two sections
whose contents are shuffled to be in 1:1 correspondence with the symtab,
and an internal strtab that gets deduplicated against the ELF strtab
(with offsets adjusted to point into the ELF strtab instead).  It is
also compressed if large enough, so its size depends on its contents!

So we cannot construct it as early as most sections: we cannot even
*begin* construction until after the symtab and strtab are finalized.
Thankfully there is already one section treated similarly: compressed
debugging sections: the only differences are that compressed debugging
sections have extra handling to deal with their changing name if
compressed (CTF sections are always called ".ctf" for now, though we
have reserved ".ctf.*" against future use), and that compressed
debugging sections have previously-uncompressed content which has to be
stashed away for later compression, while CTF sections have no content
at all until we generate it (very late).

BFD also cannot do the link itself: libctf knows how to do it, and BFD
cannot call libctf directly because libctf already depends on bfd for
file I/O.  So we have to use a pair of callbacks, one, examine_strtab,
which allows a caller to examine the symtab and strtab after
finalization (called from elf_link_swap_symbols_out(), right before the
symtabs are written, and after the strtab has been finalized), and one
which actually does the emission (called emit_ctf simply because it is
grouped with a bunch of section-specific late-emission function calls at
the bottom of bfd_elf_final_link, and a section-specific name seems best
for that).  emit_ctf is actually called *twice*: once from lang_process
if the emulation suggests that this bfd target does not examine the
symtab or strtab, and once via a bfd callback if it does.  (This means
that non-ELF targets still get CTF emitted, even though the late CTF
emission stage is never called for them).

v2: merged with non-ELF support patch: slight commit message
    adjustments.
v3: do not spend time merging CTF, or crash, if the CTF section is
    explicitly discarded.  Do not try to merge or compress CTF unless
    linking.
v4: add CTF_COMPRESSION_THRESHOLD.  Annul the freed input ctf_file_t's
    after writeout: set SEC_IN_MEMORY on the output contents so a future
    bfd enhancement knows it could free it.  Add SEC_LINKER_CREATED |
    SEC_KEEP to avoid having to add .ctf to the linker script.  Drop
    now-unnecessary ldlang.h-level elf-bfd.h include and hackery around
    it.  Adapt to elf32.em->elf.em and elf-generic.em->ldelf*.c
    changes.
v5: fix tabdamage.  Drop #inclusions in .h files: include in .c files,
    .em files, and use struct forwards instead.  Use bfd_section_is_ctf
    inline function rather than SECTION_IS_CTF macro.  Move a few
    comments.

	* Makefile.def (dependencies): all-ld depends on all-libctf.
	* Makefile.in: Regenerated.

include/
	* bfdlink.h (elf_strtab_hash): New forward.
	(elf_sym_strtab): Likewise.
	(struct bfd_link_callbacks <examine_strtab>): New.
	(struct bfd_link_callbacks <emit_ctf>): Likewise.

bfd/
	* elf-bfd.h (bfd_section_is_ctf): New inline function.
	* elf.c (special_sections_c): Add ".ctf".
	(assign_file_positions_for_non_load_sections): Note that
	compressed debugging sections etc are not assigned here.  Treat
	CTF sections like SEC_ELF_COMPRESS sections when is_linker_output:
	sh_offset -1.
	(assign_file_positions_except_relocs): Likewise.
	(find_section_in_list): Note that debugging and CTF sections, as
	well as reloc sections, are assigned later.
	(_bfd_elf_assign_file_positions_for_non_load): CTF sections get
	their size and contents updated.
	(_bfd_elf_set_section_contents): Skip CTF sections: unlike
	compressed sections, they have no uncompressed content to copy at
	this stage.
	* elflink.c (elf_link_swap_symbols_out): Call the examine_strtab
	callback right before the strtab is written out.
	(bfd_elf_final_link): Don't cache the section contents of CTF
	sections: they are not populated yet.  Call the emit_ctf callback
	right at the end, after all the symbols and strings are flushed
	out.

ld/
	* ldlang.h: (struct lang_input_statement_struct): Add the_ctf.
	(struct elf_sym_strtab): Add forward.
	(struct elf_strtab_hash): Likewise.
	(ldlang_ctf_apply_strsym): Declare.
	(ldlang_write_ctf_late): Likewise.
	* ldemul.h (ldemul_emit_ctf_early): New.
	(ldemul_examine_strtab_for_ctf): Likewise.
	(ld_emulation_xfer_type) <emit_ctf_early>: Likewise.
	(ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise.
	* ldemul.c (ldemul_emit_ctf_early): New.
	(ldemul_examine_strtab_for_ctf): Likewise.
	* ldlang.c: Include ctf-api.h.
	(CTF_COMPRESSION_THRESHOLD): New.
	(ctf_output): New. Initialized in...
	(ldlang_open_ctf): ... this new function.  Open all the CTF
	sections in the input files: mark them non-loaded and empty
	so as not to copy their contents to the output, but linker-created
	so the section gets created in the target.
	(ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and
	ctf_link.
	(ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap
	ldemul_examine_strtab_for_ctf.
	(lang_write_ctf): New, write out the CTF section.
	(ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook.
	(lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and
	lang_write_ctf.
	* ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym,
	ldlang_write_ctf_late.
	* emultempl/aix.em: Add ctf-api.h.
	* emultempl/armcoff.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/elf.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/msp430.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/pep.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
	* ldcref.c: Likewise.
	* ldctor.c: Likewise.
	* ldelf.c: Likewise.
	* ldelfgen.c: Likewise.
	* ldemul.c: Likewise.
	* ldexp.c: Likewise.
	* ldfile.c: Likewise.
	* ldgram.c: Likewise.
	* ldlex.l: Likewise.
	* ldmain.c: Likewise.
	* ldmisc.c: Likewise.
	* ldver.c: Likewise.
	* ldwrite.c: Likewise.
	* lexsup.c: Likewise.
	* mri.c: Likewise.
	* pe-dll.c: Likewise.
	* plugin.c: Likewise.

	* ldelfgen.c (ldelf_emit_ctf_early): New.
	(ldelf_examine_strtab_for_ctf): tell libctf about the symtab and
	strtab.
	(struct ctf_strsym_iter_cb_arg): New, state to do so.
	(ldelf_ctf_strtab_iter_cb): New: tell libctf about
	each string in the strtab in turn.
	(ldelf_ctf_symbols_iter_cb): New, tell libctf
	about each symbol in the symtab in turn.
	* ldelfgen.h (struct elf_sym_strtab): Add forward.
	(struct elf_strtab_hash): Likewise.
	(struct ctf_file): Likewise.
	(ldelf_emit_ctf_early): Declare.
	(ldelf_examine_strtab_for_ctf): Likewise.
	* emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it.
	(LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	emit_ctf_early and examine_strtab_for_ctf, NULL by default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_vanilla_emulation): Likewise.

	* Makefile.am: Pull in libctf (and zlib, a transitive requirement
	for compressed CTF section emission).  Pass it on to DejaGNU.
	* configure.ac: Add AM_ZLIB.
	* aclocal.m4: Added zlib.m4.
	* Makefile.in: Regenerated.
	* testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.
2019-10-03 17:04:56 +01:00
Alan Modra 0b4453c791 elf bfd.h tidy
bfd/
	* bfd-in.h (enum notice_asneeded_action): Move to bfdlink.h.
	Move most other elf declarations..
	* elf-bfd.h: ..to here.
	* bfd-in2.h: Regenerate.
include/
	* bfdlink.h (enum notice_asneeded_action): Define.
ld/
	* deffilep.y: Include bfdlink.h.
	* ldelf.c: Likewise.
	* ldelfgen.c: Likewise.
	* ldver.c: Likewise.
	* mri.c: Likewise.
	* emultempl/irix.em: Don't include ld.h, ldmain.h, libiberty.h.
	Comment.
2019-09-23 10:27:22 +09:30
Alan Modra 00f93c4492 bfd macro conversion to inline functions
This converts some of the macros that access struct bfd fields to
inline functions.

bfd/
	* archive.c (bfd_generic_archive_p): Use bfd_set_thin_archive.
	* bfd-in.h (bfd_get_filename, bfd_get_cacheable, bfd_get_format),
	(bfd_get_target, bfd_get_flavour, bfd_family_coff, bfd_big_endian),
	(bfd_little_endian, bfd_header_big_endian, bfd_header_little_endian),
	(bfd_get_file_flags, bfd_applicable_file_flags),
	(bfd_applicable_section_flags, bfd_has_map, bfd_is_thin_archive),
	(bfd_valid_reloc_types, bfd_usrdata, bfd_get_start_address),
	(bfd_get_symcount, bfd_get_outsymbols, bfd_count_sections),
	(bfd_get_dynamic_symcount, bfd_get_symbol_leading_char): Delete.
	* bfd/bfd.c (bfd_get_filename, bfd_get_cacheable, bfd_get_format),
	(bfd_get_file_flags, bfd_get_start_address, bfd_get_symcount),
	(bfd_get_dynamic_symcount, bfd_get_outsymbols, bfd_count_sections),
	(bfd_has_map, bfd_is_thin_archive, bfd_set_thin_archive),
	(bfd_usrdata, bfd_set_usrdata): New inline functions.
	* targets.c (bfd_get_target, bfd_get_flavour),
	(bfd_applicable_file_flags, bfd_family_coff, bfd_big_endian),
	(bfd_little_endian, bfd_header_big_endian),
	(bfd_header_little_endian, bfd_applicable_section_flags),
	(bfd_get_symbol_leading_char): New inline functions.
	* bfd-in2.h: Regenerate.
binutils/
	* ar.c (write_archive): Use bfd_set_thin_archive.
gdb/
	* gdb_bfd.c (gdb_bfd_ref, gdb_bfd_unref): Use bfd_set_usrdata.
	* dwarf2read.c (dwarf2_read_gdb_index, dwarf2_read_debug_names),
	(read_indirect_string_from_dwz): Use bfd accessor.
	* dwarf2read.h (struct dwz_file <filename>): Likewise.
	* machoread.c (macho_symfile_read_all_oso): Likewise.
	* solib.c (solib_bfd_open): Likewise.
ld/
	* ldelf.c (ldelf_after_open, ldelf_place_orphan
	* ldlang.c (walk_wild_file, lang_process): Use bfd_usrdata.
	(load_symbols, ldlang_add_file): Use bfd_set_usrdata.
	* ldmain.c (add_archive_element): Use bfd_usrdata.
	* ldlang.h (bfd_input_just_syms): New inline function.
	* emultempl/aarch64elf.em (build_section_lists): Use it.
	* emultempl/mmo.em (mmo_place_orphan): Likewise.
	* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/ppc64elf.em (build_section_lists): Likewise.
sim/
	* ppc/emul_generic.c (emul_add_tree_options): Delete old bfd code.
2019-09-20 18:04:02 +09:30
Alan Modra fd3619828e bfd_section_* macros
This large patch removes the unnecessary bfd parameter from various
bfd section macros and functions.  The bfd is hardly ever used and if
needed for the bfd_set_section_* or bfd_rename_section functions can
be found via section->owner except for the com, und, abs, and ind
std_section special sections.  Those sections shouldn't be modified
anyway.

The patch also removes various bfd_get_section_<field> macros,
replacing their use with bfd_section_<field>, and adds
bfd_set_section_lma.  I've also fixed a minor bug in gas where
compressed section renaming was done directly rather than calling
bfd_rename_section.  This would have broken bfd_get_section_by_name
and similar functions, but that hardly mattered at such a late stage
in gas processing.

bfd/
	* bfd-in.h (bfd_get_section_name, bfd_get_section_vma),
	(bfd_get_section_lma, bfd_get_section_alignment),
	(bfd_get_section_size, bfd_get_section_flags),
	(bfd_get_section_userdata): Delete.
	(bfd_section_name, bfd_section_size, bfd_section_vma),
	(bfd_section_lma, bfd_section_alignment): Lose bfd parameter.
	(bfd_section_flags, bfd_section_userdata): New.
	(bfd_is_com_section): Rename parameter.
	* section.c (bfd_set_section_userdata, bfd_set_section_vma),
	(bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section),
	(bfd_set_section_size): Delete bfd parameter, rename section parameter.
	(bfd_set_section_lma): New.
	* bfd-in2.h: Regenerate.
	* mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param,
	update callers.
	* aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h,
	* elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c,
	* elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c,
	* elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c,
	* elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c,
	* elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c,
	* elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c,
	* elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c,
	* elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c,
	* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
	* elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c,
	* elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c,
	* elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c,
	* elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c,
	* elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c,
	* elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c,
	* elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c,
	* elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c,
	* elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c,
	* mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c,
	* peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c,
	* xcofflink.c: Update throughout for bfd section macro and function
	changes.
binutils/
	* addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c,
	* objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c,
	* od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c,
	* resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update
	throughout for bfd section macro and function changes.
gas/
	* as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c,
	* read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c,
	* config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c,
	* config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c,
	* config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c,
	* config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c,
	* config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c,
	* config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c,
	* config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c,
	* config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c,
	* config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c,
	* config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c,
	* config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c,
	* config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c,
	* config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c,
	* config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c,
	* config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c,
	* config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c,
	* config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c,
	* config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c,
	* config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c,
	* config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c,
	* config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for
	bfd section macro and function changes.
	* write.c (compress_debug): Use bfd_rename_section.
gdb/
	* aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c,
	* coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c,
	* dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c,
	* exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h,
	* hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c,
	* i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c,
	* maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c,
	* mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c,
	* objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c,
	* ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c,
	* rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c,
	* s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c,
	* solib-spu.c, * solib-svr4.c, * solib-target.c,
	* spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c,
	* symmisc.c, * symtab.c, * target.c, * windows-nat.c,
	* xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c,
	* mi/mi-interp.c: Update throughout for bfd section macro and
	function changes.
	* gcore (gcore_create_callback): Use bfd_set_section_lma.
	* spu-tdep.c (spu_overlay_new_objfile): Likewise.
gprof/
	* corefile.c, * symtab.c: Update throughout for bfd section
	macro and function changes.
ld/
	* ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c,
	* emultempl/aarch64elf.em, * emultempl/aix.em,
	* emultempl/armcoff.em, * emultempl/armelf.em,
	* emultempl/cr16elf.em, * emultempl/cskyelf.em,
	* emultempl/m68hc1xelf.em, * emultempl/m68kelf.em,
	* emultempl/mipself.em, * emultempl/mmix-elfnmmo.em,
	* emultempl/mmo.em, * emultempl/msp430.em,
	* emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em,
	* emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update
	throughout for bfd section macro and function changes.
libctf/
	* ctf-open-bfd.c: Update throughout for bfd section macro changes.
opcodes/
	* arc-ext.c: Update throughout for bfd section macro changes.
sim/
	* common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c,
	* erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c,
	* m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c,
	* rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c,
	* rx/trace.c: Update throughout for bfd section macro changes.
2019-09-19 09:40:13 +09:30
Alan Modra 0aa0727c8f PR25002, ld/ldelf.c missing safe-ctype.h include
PR 25002
	* ldelf.c: Include safe-ctype.h.
2019-09-16 23:51:48 +09:30
Alan Modra 075a2b89c7 Rename elf32.em to elf.em
* emultempl/elf32.em: Remove "misnamed" comment.  Rename to..
	* emultempl/elf.em: ..this.
	* configure.ac (elf_list_options): Adjust TEMPLATE_NAME grep.
	* emulparams/aarch64cloudabi.sh (TEMPLATE_NAME): Set to elf.
	* emulparams/aarch64elf.sh: Likewise.
	* emulparams/aarch64elf32.sh: Likewise.
	* emulparams/aarch64fbsd.sh: Likewise.
	* emulparams/aarch64linux.sh: Likewise.
	* emulparams/aarch64linux32.sh: Likewise.
	* emulparams/arcelf.sh: Likewise.
	* emulparams/arcelf_prof.sh: Likewise.
	* emulparams/arclinux.sh: Likewise.
	* emulparams/arclinux_prof.sh: Likewise.
	* emulparams/arcv2elf.sh: Likewise.
	* emulparams/arcv2elfx.sh: Likewise.
	* emulparams/armelf.sh: Likewise.
	* emulparams/armelf_fuchsia.sh: Likewise.
	* emulparams/armelf_linux.sh: Likewise.
	* emulparams/armelf_phoenix.sh: Likewise.
	* emulparams/armnto.sh: Likewise.
	* emulparams/avr1.sh: Likewise.
	* emulparams/avr2.sh: Likewise.
	* emulparams/avr25.sh: Likewise.
	* emulparams/avr3.sh: Likewise.
	* emulparams/avr31.sh: Likewise.
	* emulparams/avr35.sh: Likewise.
	* emulparams/avr4.sh: Likewise.
	* emulparams/avr5.sh: Likewise.
	* emulparams/avr51.sh: Likewise.
	* emulparams/avr6.sh: Likewise.
	* emulparams/avrtiny.sh: Likewise.
	* emulparams/avrxmega1.sh: Likewise.
	* emulparams/avrxmega2.sh: Likewise.
	* emulparams/avrxmega3.sh: Likewise.
	* emulparams/avrxmega4.sh: Likewise.
	* emulparams/avrxmega5.sh: Likewise.
	* emulparams/avrxmega6.sh: Likewise.
	* emulparams/avrxmega7.sh: Likewise.
	* emulparams/criself.sh: Likewise.
	* emulparams/crislinux.sh: Likewise.
	* emulparams/cskyelf.sh: Likewise.
	* emulparams/d10velf.sh: Likewise.
	* emulparams/elf32_sparc.sh: Likewise.
	* emulparams/elf32_spu.sh: Likewise.
	* emulparams/elf32_tic6x_le.sh: Likewise.
	* emulparams/elf32_x86_64.sh: Likewise.
	* emulparams/elf32am33lin.sh: Likewise.
	* emulparams/elf32bfin.sh: Likewise.
	* emulparams/elf32bfinfd.sh: Likewise.
	* emulparams/elf32bmip.sh: Likewise.
	* emulparams/elf32bmipn32-defs.sh: Likewise.
	* emulparams/elf32cr16.sh: Likewise.
	* emulparams/elf32cr16c.sh: Likewise.
	* emulparams/elf32crx.sh: Likewise.
	* emulparams/elf32epiphany.sh: Likewise.
	* emulparams/elf32epiphany_4x4.sh: Likewise.
	* emulparams/elf32frvfd.sh: Likewise.
	* emulparams/elf32ip2k.sh: Likewise.
	* emulparams/elf32lm32.sh: Likewise.
	* emulparams/elf32lm32fd.sh: Likewise.
	* emulparams/elf32lriscv-defs.sh: Likewise.
	* emulparams/elf32m32c.sh: Likewise.
	* emulparams/elf32mb_linux.sh: Likewise.
	* emulparams/elf32mbel_linux.sh: Likewise.
	* emulparams/elf32mcore.sh: Likewise.
	* emulparams/elf32mep.sh: Likewise.
	* emulparams/elf32metag.sh: Likewise.
	* emulparams/elf32microblaze.sh: Likewise.
	* emulparams/elf32mipswindiss.sh: Likewise.
	* emulparams/elf32or1k.sh: Likewise.
	* emulparams/elf32ppccommon.sh: Likewise.
	* emulparams/elf32rl78.sh: Likewise.
	* emulparams/elf32rx.sh: Likewise.
	* emulparams/elf32tilegx.sh: Likewise.
	* emulparams/elf32tilepro.sh: Likewise.
	* emulparams/elf32vax.sh: Likewise.
	* emulparams/elf32visium.sh: Likewise.
	* emulparams/elf32xc16x.sh: Likewise.
	* emulparams/elf32xc16xl.sh: Likewise.
	* emulparams/elf32xc16xs.sh: Likewise.
	* emulparams/elf32xstormy16.sh: Likewise.
	* emulparams/elf32xtensa.sh: Likewise.
	* emulparams/elf64_aix.sh: Likewise.
	* emulparams/elf64_ia64.sh: Likewise.
	* emulparams/elf64_s390.sh: Likewise.
	* emulparams/elf64_sparc.sh: Likewise.
	* emulparams/elf64alpha.sh: Likewise.
	* emulparams/elf64bpf.sh: Likewise.
	* emulparams/elf64hppa.sh: Likewise.
	* emulparams/elf64mmix.sh: Likewise.
	* emulparams/elf64rdos.sh: Likewise.
	* emulparams/elf64tilegx.sh: Likewise.
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_be.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_s390.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/h8300elf.sh: Likewise.
	* emulparams/h8300elf_linux.sh: Likewise.
	* emulparams/hppa64linux.sh: Likewise.
	* emulparams/hppaelf.sh: Likewise.
	* emulparams/hppalinux.sh: Likewise.
	* emulparams/i386lynx.sh: Likewise.
	* emulparams/i386moss.sh: Likewise.
	* emulparams/i386nto.sh: Likewise.
	* emulparams/m32relf.sh: Likewise.
	* emulparams/m32relf_linux.sh: Likewise.
	* emulparams/m68hc11elf.sh: Likewise.
	* emulparams/m68hc11elfb.sh: Likewise.
	* emulparams/m68hc12elf.sh: Likewise.
	* emulparams/m68hc12elfb.sh: Likewise.
	* emulparams/m68kelf.sh: Likewise.
	* emulparams/mn10300.sh: Likewise.
	* emulparams/nds32elf.sh: Likewise.
	* emulparams/nds32elf16m.sh: Likewise.
	* emulparams/nds32elf_linux.sh: Likewise.
	* emulparams/nios2elf.sh: Likewise.
	* emulparams/nios2linux.sh: Likewise.
	* emulparams/pruelf.sh: Likewise.
	* emulparams/score3_elf.sh: Likewise.
	* emulparams/shelf.sh: Likewise.
	* emulparams/shelf_nto.sh: Likewise.
	* emulparams/shelf_vxworks.sh: Likewise.
	* emulparams/shlelf_linux.sh: Likewise.
	* emulparams/shlelf_nto.sh: Likewise.
	* emulparams/v850.sh: Likewise.
	* emulparams/v850_rh850.sh: Likewise.
	* ldelf.c: Update comment.
	* ldelf.h: Likewise.
	* emultempl/aarch64elf.em: Likewise.
	* emultempl/alphaelf.em: Likewise.
	* emultempl/arclinux.em: Likewise.
	* emultempl/armelf.em: Likewise.
	* emultempl/avrelf.em: Likewise.
	* emultempl/bfin.em: Likewise.
	* emultempl/cr16elf.em: Likewise.
	* emultempl/crxelf.em: Likewise.
	* emultempl/cskyelf.em: Likewise.
	* emultempl/elf-generic.em: Likewise.
	* emultempl/elf-x86.em: Likewise.
	* emultempl/epiphanyelf_4x4.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/ia64elf.em: Likewise.
	* emultempl/m68hc1xelf.em: Likewise.
	* emultempl/m68kelf.em: Likewise.
	* emultempl/metagelf.em: Likewise.
	* emultempl/mmix-elfnmmo.em: Likewise.
	* emultempl/mmixelf.em: Likewise.
	* emultempl/mmo.em: Likewise.
	* emultempl/needrelax.em: Likewise.
	* emultempl/nios2elf.em: Likewise.
	* emultempl/ppc32elf.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/pruelf.em: Likewise.
	* emultempl/rxelf.em: Likewise.
	* emultempl/scoreelf.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
	* emultempl/v850elf.em: Likewise.
	* emultempl/vms.em: Likewise.
	* emultempl/vxworks.em: Likewise.
	* emultempl/xtensaelf.em: Likewise.
	* scripttempl/arclinux.sc: Likewise.
	* scripttempl/armbpabi.sc: Likewise.
	* scripttempl/elf.sc: Likewise.
	* scripttempl/elf64bpf.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfarc.sc: Likewise.
	* scripttempl/elfarcv2.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfm9s12z.sc: Likewise.
	* scripttempl/elfxgate.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/epiphany_4x4.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/nds32elf.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/v850_rh850.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.
	* testsuite/ld-arm/arm-dyn.ld: Likewise.
	* testsuite/ld-arm/arm-lib.ld: Likewise.
	* testsuite/ld-arm/arm-no-rel-plt.ld: Likewise.
	* testsuite/ld-arm/fdpic-main.ld: Likewise.
	* testsuite/ld-arm/fdpic-shared.ld: Likewise.
	* testsuite/ld-elf/elf.exp: Likewise.
	* testsuite/ld-elf/orphan-region.d: Likewise.
	* testsuite/ld-elf/orphan.d: Likewise.
	* testsuite/ld-elf/pr349.d: Likewise.
	* testsuite/ld-elf/warn2.d: Likewise.
	* testsuite/ld-elfvsb/elf-offset.ld: Likewise.
	* testsuite/ld-mips-elf/mips-dyn.ld: Likewise.
	* testsuite/ld-mips-elf/mips-lib.ld: Likewise.
	* testsuite/ld-scripts/dynamic-sections.t: Likewise.
	* testsuite/ld-shared/elf-offset.ld: Likewise.
	* configure: Regenerate.
2019-09-11 13:45:18 +09:30
Alan Modra d871d47806 Move elf32.em and elf-generic.em functions
Many ELF linker targets support multiple "emulations" and thus have
multiple copies of elf32.em being compiled and linked into ld.  This
patch moves much of elf32.em and elf-generic.em into files which will
be compiled just once, resulting in a 20% decrease in ld size for
--enable-targets=all.

	* Makefile.am (ALL_EMUL_EXTRA_OFILES): Add ldelf and ldelfgen.
	(CFILES, HFILES, EXTRA_ld_new_SOURCES): Likewise.
	* configure.tgt: Formatting.
	(targ_extra_ofiles): Init to ldelf.o ldelfgen.o, reset to just
	ldelfgen.o for generic ELF targets, and empty for non-ELF.
	* emultempl/aarch64elf.em (gldaarch64_layout_sections_again): Use
	ldelf_map_segments.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, aarch64_for_each_input_file_wrapper),
	(aarch64_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/alphaelf.em (alpha_after_parse): Use ldelf_map_segments.
	* emultempl/armelf.em (gldarm_layout_sections_again): Likewise.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, arm_for_each_input_file_wrapper),
	(arm_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/cr16elf.em (cr16elf_after_parse): Use ldelf_map_segments.
	* emultempl/crxelf.em (crxelf_after_parse): Likewise.  Delete
	declaration.
	* emultempl/cskyelf.em (gldcsky_layout_sections_again): Use
	ldelf_map_segments.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, csky_for_each_input_file_wrapper),
	(csky_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/genelf.em: Include ldelfgen.h.
	(gld${EMULATION_NAME}_before_allocation): Use ldelf_map_segments.
	* emultempl/hppaelf.em (hppaelf_after_parse): Likewise.
	(hppaelf_layout_sections_again): Likewise.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, hppa_for_each_input_file_wrapper),
	(hppa_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/ia64elf.em (ia64elf_after_parse): Use ldelf_map_segments.
	* emultempl/m68hc1xelf.em (real_func),
	(m68hc11_for_each_input_file_wrapper),
	(m68hc11_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/metagelf.em (metagelf_layout_sections_again): Use
	ldelf_map_segments.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, metag_for_each_input_file_wrapper),
	(metag_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/mipself.em (real_func),
	(mips_for_each_input_file_wrapper),
	(mips_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/mmo.em: Don't include elf-bfd.h, do include ldelfgen.h.
	(gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments.
	* emultempl/nds32elf.em (nds32_elf_after_parse): Use ldelf_after_parse.
	(nds32_elf_after_allocation): Comment fix.
	* emultempl/nios2elf.em (nios2elf_layout_sections_again): Use
	ldelf_map_segments.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, nios2_for_each_input_file_wrapper),
	(nios2_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	* emultempl/ppc32elf.em (gld${EMULATION_NAME}_load_symbols): Delete
	declaration.
	(ppc_recognized_file): Call ldelf_load_symbols.
	* emultempl/ppc64elf.em (ppc_layout_sections_again): Likewise.
	(gld${EMULATION_NAME}_after_allocation): Likewise.
	(real_func, ppc_for_each_input_file_wrapper),
	(ppc_lang_for_each_input_file): Delete.
	(lang_for_each_input_file): Don't define.
	(gld${EMULATION_NAME}_load_symbols): Don't declare.
	(ppc64_recognized_file): Call ldelf_load_symbols.
	* emultempl/riscvelf.em (gld${EMULATION_NAME}_after_allocation):
	Use ldelf_map_segments.
	* emultempl/spuelf.em (spu_place_special_section): Use
	ldelf_place_orphan.
	* emultempl/tic6xdsbt.em (gld${EMULATION_NAME}_after_allocation):
	Use ldelf_map_segments.
	* emultempl/vms.em: Include ldelfgen.h.
	(gld${EMULATION_NAME}_after_allocation): Use ldelf_map_segments.
	* emultempl/elf32.em: Remove unnecessary headers, include ldelf.h
	and ldelfgen.h.  Move much of file content to..
	* ldelf.c: ..here.  New file.
	* ldelf.h: New file.
	* emultempl/elf-generic.em: Move gld${EMULATION_NAME}_map_segments..
	* ldelfgen.c: ..to here.
	* ldelfgen.h: New file.
	* ldlang.c (lang_for_each_input_file): Adjust to only call func
	on real files.
	(lang_for_each_file): Likewise.
	* po/SRC-POTFILES.in: Regenerate.
	* Makefile.in: Regenerate.
2019-09-11 13:44:22 +09:30