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5 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
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
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