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34 Commits

Author SHA1 Message Date
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
b3adc24a07 Update year range in copyright notice of binutils files 2020-01-01 18:42:54 +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
827041555a Update year range in copyright notice of binutils files 2019-01-01 22:06:53 +10:30
Alan Modra
219d1afa89 Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
H.J. Lu
5c3261b0e8 ELF: Call check_relocs after opening all inputs 
For all ELF targers, call check_relocs after opening all inputs and
garbage collection.  Since the symbol resolution is known, check_relocs
can be simplified.  Also garbage collection doesn't need to undo what
check_relocs has done for symbols which have been garbage collected.
Since ELF targets never see the removed sections, gc_sweep_hook can be
removed from elf_backend_data and we can avoid GOT/PLT with garbage
collection now.

Set link_info.check_relocs_after_open_input to TRUE for all linker
targets which use ELF linker and update garbage collection tests to
remove unused GOT section.

ldemul_after_check_relocs is added for powerpc to support --secure-plt,
--bss-plt and --sdata-got.

Tested natively without regressions on i686, x86-64 and x32.  Tested
cross binutils on x86-64 without regressions for aarch64-linux,
alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux,
hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux,
mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf,
nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux,
riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf,
sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux,
tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux.

bfd/

	* elf-bfd.h (elf_backend_data): Remove gc_sweep_hook.
	* elf32-arm.c (elf32_arm_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-bfin.c (bfin_gc_sweep_hook): Likewise.
	(bfinfdpic_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-cris.c (cris_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook
	from comments.
	(elf_m68k_remove_got_entry_type): Removed.
	(elf_m68k_find_got_entry_ptr): Likewise.
	(elf_m68k_remove_got_entry): Likewise.
	(elf_m68k_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-metag.c (elf_metag_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-mips.c (elf_backend_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-vax.c (elf_vax_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-mips.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise.
	(ppc64_elf_gc_sweep_hook): Likewise.
	* elf64-s390.c (elf_s390_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise.
	* elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
	* elflink.c (elf_link_add_object_symbols): Don't call
	_bfd_elf_link_check_relocs here.
	(gc_sweep_hook_fn): Removed.
	(elf_gc_sweep): Remove gc_sweep_hook.
	* elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise.
	* elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise.
	(elf_backend_gc_sweep_hook): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise.
	* elfxx-target.h (elf_backend_gc_sweep_hook): Likewise.
	(elfNN_bed): Remove elf_backend_gc_sweep_hook.
	* elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed.
	* elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise.

ld/

	* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Removed.
	* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
	Likewise.
	* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse):
	Likewise.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
	after_parse_default.
	* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/m68kcoff.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/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always
	set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS.
	* emultempl/linux.em (gld${EMULATION_NAME}_before_parse):
	Set link_info.check_relocs_after_open_input to TRUE.
	(ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default.
	* emultempl/mmix-elfnmmo.em (mmix_before_parse): New function.
	(LDEMUL_BEFORE_PARSE): New.
	* emultempl/mmixelf.em (elfmmix_before_parse): Replace
	gld${EMULATION_NAME}_before_parse with mmix_before_parse.
	* emultempl/ppc32elf.em (ppc_after_open): Renamed to ...
	(ppc_after_check_relocs): This.  Call after_check_relocs_default
	instead of gld${EMULATION_NAME}_after_open.
	(LDEMUL_AFTER_OPEN): Removed.
	(LDEMUL_AFTER_CHECK_RELOCS): New.
	* ldemul.c (ldemul_after_check_relocs): New.
	(after_check_relocs_default): Likewise.
	* ldemul.h (ldemul_after_check_relocs): Likewise.
	(after_check_relocs_default): Likewise.
	(ld_emulation_xfer_struct): Add after_check_relocs.
	* ldlang.c (lang_process): Call ldemul_after_check_relocs after
	lang_check_relocs.
	* testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section.
	* testsuite/ld-aarch64/gc-tls-relocs.d: Likewise.
	* testsuite/ld-cris/tls-gc-68.d: Likewise.
	* testsuite/ld-cris/tls-gc-69.d: Likewise.
	* testsuite/ld-cris/tls-gc-70.d: Likewise.
	* testsuite/ld-cris/tls-gc-75.d: Likewise.
	* testsuite/ld-cris/tls-gc-79.d: Likewise.
	* testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents
	section.
 2017-10-16 03:50:13 -07:00
Alan Modra
2571583aed Update year range in copyright notice of all files. 2017-01-02 14:08:56 +10:30
Alan Modra
6f2750feaf Copyright update for binutils 2016-01-01 23:00:01 +10:30
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
DJ Delorie
7a2f2d82fd Add new link-map-text hook and RX auto-vector support. 
* bfd/elf32-rx.c (get_symbol_value_maybe): New.
(rx_elf_relocate_section): If we find a reloc against
$tableentry$default$<name>, redirect it to the appropriate
$tableentry$<n>$.
(RX_Table_Info): New.
(rx_table_find): New.  Check all tables and SEC_KEEP all sections
with table parts in them.
(rx_check_directives): New.
(rx_table_map_2): New.
(rx_table_map): New.
(rx_additional_link_map_text): New.  Called to dump tables to the
map file.
* bfd/elf32-rx.h: New.

* ld/ldemul.h (extra_map_file_text): New field.
(ldemul_extra_map_file_text): Declare.
* ld/ldemul.c (ldemul_extra_map_file_text): Define.
* ld/ldlang.c (lang_map): Call it.

* ld/emultempl/rxelf.em: Add extra_map_file_text hook.
* ld/emultempl/aix.em: Add NULL extra_map_file_text hook.
* ld/emultempl/armcoff.em: Likewise.
* ld/emultempl/beos.em: Likewise.
* ld/emultempl/elf32.em: Likewise.
* ld/emultempl/generic.em: Likewise.
* ld/emultempl/gld960.em: Likewise.
* ld/emultempl/gld960c.em: Likewise.
* ld/emultempl/linux.em: Likewise.
* ld/emultempl/lnk960.em: Likewise.
* ld/emultempl/m68kcoff.em: Likewise.
* ld/emultempl/pe.em: Likewise.
* ld/emultempl/pep.em: Likewise.
* ld/emultempl/sunos.em: Likewise.
* ld/emultempl/ticoff.em: Likewise.
* ld/emultempl/vanilla.em: Likewise.
 2014-05-27 17:14:49 -04:00
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Alan Modra
aa820537ea update copyright dates 2009-09-02 07:25:43 +00:00
Alan Modra
c2edb4b89e * ldemul.h (ldemul_place_orphan): Update prototype. 
(struct ld_emulation_xfer_struct <place_orphan>): Likewise.
	* ldemul.c (ldemul_place_orphan): Return pointer to output
	section statement.
	* emultempl/beos.em (gld${EMULATION_NAME}_place_orphan): Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): 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.
 2008-10-20 12:14:29 +00:00
Alan Modra
8a99a385a7 * ldemul.c (ldemul_place_orphan): Add "constraint" param. 
* ldemul.h (ldemul_place_orphan): Update prototype.
	(struct ld_emulation_xfer_struct <place_orphan>): Likewise add param.
	* ldlang.c (unique_section_p): Make static.
	(lang_output_section_statement_lookup): Optimise creation of SPECIAL
	sections.
	(lang_insert_orphan): Add "constraint" param.  Pass to
	lang_enter_output_section_statement.
	(init_os): Don't use an existing bfd section for SPECIAL sections.
	(lang_place_orphans): Don't rename unique output sections, instead
	mark their output section statements SPECIAL.
	* ldlang.h (lang_insert_orphan): Update prototype.
	(unique_section_p): Delete.
	* emultempl/beos.em (place_orphan): Add "constraint" param.
	* emultempl/elf32.em (place_orphan): Likewise.  Don't match existing
	output sections if set.
	* emultempl/pe.em (place_orphan): Likewise.
	* emultempl/pep.em (place_orphan): Likewise.
	* emultempl/mmo.em (mmo_place_orphan): Update.
	* emultempl/spuelf.em (spu_place_special_section): Update.
 2008-10-04 06:08:59 +00:00
Alan Modra
bcacc0f587 bfd/ 
* elf.c (bfd_elf_set_group_contents): Assign sh_info for ld -r when
	the signature symbol is global.
	* elflink.c (elf_link_input_bfd): Ensure group signature symbol
	is output when ld -r.  Set group sh_info when local.
	* linker.c (default_indirect_link_order): Handle group sections
	specially.
ld/
	* ldemul.c (ldemul_place_orphan): Add "name" param.
	* ldemul.h (ldemul_place_orphan): Update prototype.
	(struct ld_emulation_xfer_struct <place_orphan>): Likewise.
	* ldlang.c (lang_place_orphans): Generate unique section names here..
	* emultempl/elf32.em (place_orphan): ..rather than here.  Don't
	directly use an existing output section statement that has no
	bfd section.
	* emultempl/pe.em (place_orphan): Likewise.
	* emultempl/pep.em (place_orphan): Likewise.
	* emultempl/beos.em (place_orphan): Adjust.
	* emultempl/spuelf.em (spu_place_special_section): Adjust
	place_orphan call.
	* emultempl/genelf.em (gld${EMULATION_NAME}_after_open): New function.
	(LDEMUL_AFTER_OPEN): Define.
 2008-10-03 09:40:49 +00:00
Nick Clifton
f96b4a7b0f Update sources to GPLv3 2007-07-06 14:09:45 +00:00
Alan Modra
7b986e992e * ldlang.h (lang_input_section_type): Remove "ifile" field. 
(lang_insert_orphan, lang_add_section): Update prototypes.
	* ldlang.c (lang_insert_orphan): Remove "file" param.
	(lang_add_section): Likewise.  Update all callers.
	(wild_sort): Get an input section's bfd via "section->owner".
	(size_input_section): Access just_syms_flag via bfd usrdata.
	(lang_place_orphans): Update ldemul_place_orphan call.
	* ldemul.h (ldemul_place_orphan): Remove input_statement param.
	(struct ld_emulation_xfer_struct <place_orphan>): Likewise.
	* ldemul.c (ldemul_place_orphan): Likewise.
	* ldwrite.c (build_link_order): Access just_syms_flag via bfd usrdata.
	* emultempl/armelf.em (arm_elf_set_bfd_for_interworking): Likewise.
	* emultempl/beos.em (sort_by_file_name): Access bfd by section->owner.
	(sort_sections): Likewise.
	(place_orphan): Remove "file" param.  Adjust lang_add_section call.
	* emultempl/elf32.em (place_orphan): Remove "file" param.  Adjust
	lang_add_section and lang_insert_orphan calls.
	* emultempl/hppaelf.em (hppaelf_add_stub_section): Adjust
	lang_add_section call.
	(build_section_lists): Access just_syms_flag via bfd usrdata.
	* emultempl/m68hc1xelf.em (m68hc11elf_add_stub_section): Adjust
	lang_add_section call.
	* emultempl/mmo.em (mmo_place_orphan): Remove "file" param.  Adjust
	lang_add_section and lang_insert_orphan calls.
	* emultempl/pe.em (place_orphan): Likewise.  Access bfd via section
	owner.
	* emultempl/ppc64elf.em (ppc_add_stub_section): Adjust
	lang_add_section call.
	(build_toc_list): Access just_syms_flag via bfd usrdata.
	(build_section_lists): Likewise.
	* emultempl/xtensaelf.em (elf_xtensa_place_orphan): Remove "file"
	param.  Adjust place_orphan call.
	(ld_build_required_section_dependence): Access bfd via section owner.
 2005-11-17 00:10:05 +00:00
Alan Modra
046183de0e bfd/ 
* elf32-ppc.c (struct elf_linker_section): Replace sym_val field
	with sym.
	(ppc_elf_relocate_section): Adjust for above.
	(create_sdata_sym): New function.
	(ppc_elf_create_linker_section): Call it.
	(ppc_elf_check_relocs): Correct has_sda_refs and non_got_refs.
	Create sdata syms for all SDA relocs.
	(ppc_elf_adjust_dynamic_symbol): Don't special case _SDA_BASE_
	and _SDA2_BASE_.
	(ppc_elf_set_sdata_syms): Delete.
	* elflink.c (bfd_elf_size_dynamic_sections): Don't create DT_INIT
	and DT_FINI tags unless associated section has input.
	(bfd_elf_set_symbol, _bfd_elf_provide_symbol): Delete.
	(_bfd_elf_provide_section_bound_symbols): Delete.
	* bfd-in.h (_bfd_elf_provide_symbol): Delete.
	(_bfd_elf_provide_section_bound_symbols): Delete.
	* bfd-in2.h: Regenerate.
ld/
	* ldemul.c (ldemul_do_assignments, do_assignments_default): Delete.
	* ldemul.h (ldemul_do_assignments, do_assignments_default): Delete.
	(struct ld_emulation_xfer_struct): Remove do_assignments field.
	* ldlang.c (lang_do_assignments): Don't call ldemul_do_assignments.
	* emulparams/elf32ppc.sh (SDATA_START_SYMBOLS): New.
	(SDATA2_START_SYMBOLS, SBSS_START_SYMBOLS, SBSS_END_SYMBOLS): New.
	* emultempl/aix.em (ld_*_emulation): Delete do_assignments init.
	* emultempl/armcoff.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
	* emultempl/elf32.em: Likewise.
	(gld*_provide_bound_symbols): Delete.
	(gld*_provide_init_fini_syms): Delete.
	(gld*_before_allocation): Don't call ldemul_do_assignments.
	* emultempl/ppc32elf.em (ppc_do_assignments): Delete.
	(LDEMUL_DO_ASSIGNMENTS): Delete.
	* scripttempl/elf.sc: Provide init/fini syms.  Add SBSS_START_SYMBOLS,
	SBSS_END_SYMBOLS, SDATA2_START_SYMBOLS.
 2005-08-04 06:22:14 +00:00
Alan Modra
1e035701d6 bfd/ 
* elflink.c (fix_syms, _bfd_elf_fix_excluded_sec_syms): Move to..
	* linker.c (fix_syms, _bfd_fix_excluded_sec_syms): ..here.
	* bfd-in.h (_bfd_fix_excluded_sec_syms): Rename.
	* bfd-in2.h: Regenerate.
ld/
	* ldemul.c (ldemul_finish): Call ld_emulation->finish unconditionally.
	(finish_default): New function.
	* ldemul.h (finish_default): Declare.
	* emultempl/aix.em (gld*_before_allocation): Call
	before_allocation_default rather than strip_excluded_output_sections.
	(ld_*_emulation): Init finish field to finish_default.
	* emultempl/armcoff.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/elf32.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/hppaelf.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/mmo.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/ppc64elf.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
 2005-08-04 01:19:10 +00:00
Alan Modra
5e797c2c67 * ldemul.c (ldemul_do_assignments): New function. 
(do_assignments_default): New function.
	* ldemul.h (ldemul_do_assignments): Declare.
	(do_assignments_default): Declare.
	(struct ld_emulation_xfer_struct): Add do_assignments.
	* ldlang.c (lang_do_assignments) Call ldemul_do_assignments.
	* emultempl/aix.em (ld_*_emulation): Init do_assignments field.
	* emultempl/armcoff.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
	* emultempl/elf32.em: Likewise, to call gld*_provide_init_fini_syms.
	(gld*_find_exp_assignment): Adjust bfd_elf_record_link_assignment call.
 2005-07-15 12:19:15 +00:00
Alan Modra
aef6203bd6 update copyright dates 2005-03-03 11:52:12 +00:00
Ben Elliston
cb9faf63f8 * ldemul.h: Forward declare struct option. 2004-12-07 12:29:41 +00:00
Alan Modra
1579bae1cd Convert to C90 2003-06-28 05:28:54 +00:00
Alan Modra
3aa97c5886 * ldemul.c (ldemul_parse_args): Return FALSE by default. 
* ldemul.h (struct ld_emulation_xfer_struct): Update parse_args
	comment.
 2003-02-28 02:10:06 +00:00
Alan Modra
3bcf55573d * ldemul.c (ldemul_add_options, ldemul_handle_option): New functions. 
(ldemul_parse_args): Return bfd_boolean.  Formatting.
	* ldemul.h (ldemul_add_options, ldemul_handle_option): Declare.
	(ldemul_parse_args): Adjust.
	(struct ld_emulation_xfer_struct): Add add_options and handle_option.
	Return bfd_boolean from parse_args.
	* lexsup.c (parse_args): Malloc shortopts, longopts and
	really_longopts.  Call ldemul_add_options and ldemul_handle_option.
	* emultempl/aix.em (gld${EMULATION_NAME}_add_options): Split out from
	gld${EMULATION_NAME}_parse_args.
	(gld${EMULATION_NAME}_handle_option): Likewise.
	(ld_${EMULATION_NAME}_emulation): Adjust initializer.
	* emultempl/armcoff.em: As for aix.em, but remove parse_args.
	* emultempl/beos.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/elf32.em: Likewise.  Don't duplicate long options either.
	(gld${EMULATION_NAME}_add_sysroot): Prototype.
	* emultempl/armelf.em (PARSE_AND_LIST_LONGOPTS): Don't duplicate
	options.
	* emultempl/hppaelf.em (PARSE_AND_LIST_LONGOPTS): Likewise.
	* emultempl/ppc32elf.em (PARSE_AND_LIST_LONGOPTS): Likewise.
	* emultempl/ppc64elf.em (PARSE_AND_LIST_LONGOPTS): Likewise.
	* emultempl/armelf_oabi.em (ld_${EMULATION_NAME}_emulation): Adjust
	initializer.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/mipsecoff.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/vanilla.em: Likewise.
	* emultempl/netbsd.em (gldnetbsd_before_parse): Prototype.
 2003-02-28 01:32:31 +00:00
Alan Modra
b34976b65a s/boolean/bfd_boolean/ s/true/TRUE/ s/false/FALSE/. Simplify 
comparisons of bfd_boolean vars with TRUE/FALSE.  Formatting.
 2002-11-30 08:39:46 +00:00
Alan Modra
fac1652d6b * ldemul.c (ldemul_new_vers_pattern): New function. 
* ldemul.h (ldemul_new_vers_pattern): Declare.
	(struct ld_emulation_xfer_struct): Add new_vers_pattern.
	* ldlang.c (lang_new_vers_pattern): Call ldemul_new_vers_pattern.
	* emultempl/ppc64elf.em (dotsyms): New static var.
	(gld${EMULATION_NAME}_new_vers_pattern): New function.
	(LDEMUL_NEW_VERS_PATTERN): Define.
	(PARSE_AND_LIST_PROLOGUE): Add OPTION_DOTSYMS, OPTION_NO_DOTSYMS.
	(PARSE_AND_LIST_LONGOPTS): Likewise.
	(PARSE_AND_LIST_ARGS_CASES): Handle them.
	* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Update
	initialiser.
	* emultempl/armcoff.em: Likewise.
	* emultempl/armelf_oabi.em: Likewise.
	* emultempl/beos.em: Likewise.
	* emultempl/elf32.em: Likewise.
	* emultempl/generic.em: Likewise.
	* emultempl/gld960.em: Likewise.
	* emultempl/gld960c.em: Likewise.
	* emultempl/linux.em: Likewise.
	* emultempl/lnk960.em: Likewise.
	* emultempl/m68kcoff.em: Likewise.
	* emultempl/mipsecoff.em: Likewise.
	* emultempl/pe.em: Likewise.
	* emultempl/sunos.em: Likewise.
	* emultempl/ticoff.em: Likewise.
	* emultempl/vanilla.em: Likewise.
 2002-05-22 09:04:48 +00:00
Tom Rix
742aeb63e9 Pass argc and argv to ldemul_choose_target. 
Support -b64 in AIX
 2001-12-03 23:15:28 +00:00
Nick Clifton
a2b64bede3 Fixtypos in ChangeLogs, fix copyright dates in files 2001-03-13 06:14:29 +00:00
Kazu Hirata
89cdebba13 2000-10-09 Kazu Hirata <kazu@hxi.com> 
* ldcref.c: Fix formatting.
	* ldctor.h: Likewise.
	* ldemul.c: Likewise.
	* ldemul.h: Likewise.
	* ldexp.c: Likewise.
	* ldexp.h: Likewise.
	* ldfile.c: Likewise.
	* ldfile.h: Likewise.
	* ld.h: Likewise.
	* ldlang.c: Likewise.
	* ldlang.h: Likewise.
	* ldmain.c: Likewise.
 2000-10-09 15:09:17 +00:00
Kazu Hirata
5cc18311d9 2000-09-29 Kazu Hirata <kazu@hxi.com> 
* deffile.h: Fix formatting.
	* ld.h: Likewise.
	* ldctor.h: Likewise.
	* ldemul.h: Likewise.
	* ldexp.h: Likewise.
	* ldfile.h: Likewise.
	* ldlang.h: Likewise.
	* lexsup.c: Likewise.
	* mri.c: Likewise.
	* pe-dll.c: Likewise.
 2000-09-29 13:21:41 +00:00
Alan Modra
b71e277823 Remove some forward declarations in ldemul.h and ldfile.h, and 
re-arrange header include order.
Fix shadowing warnings in ldlang.h
Fix compile errors in mpw-elfmips.c
 2000-07-11 03:42:41 +00:00
Nick Clifton
344a211f99 Add support for WinCE based toolchains. 2000-02-24 17:53:12 +00:00
Richard Henderson
252b5132c7 19990502 sourceware import 1999-05-03 07:29:11 +00:00