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9 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
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. |
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Alan Modra
|
74dc9032e7 |
Move .stack before debug sections
PR 20199 * emulparams/elf32m32c.sh: Define STACK_ADDR and STACK_SENTINEL rather than using OTHER_SECTIONS. * emulparams/elf32mt.sh: Likewise. * emulparams/elf32rx.sh: Likewise. * emulparams/elf32rl78.sh: Likewise. Use OTHER_SYMBOLS to define __rl78_abs__. * emulparams/shelf.sh: Define STACK_ADDR and STACK_SENTINEL rather than using OTHER_SECTIONS. * emulparams/shelf32.sh: Likewise. Use OTHER_SECTIONS for .cranges. * emulparams/shelf64.sh: Unset OTHER_SECTIONS. * emulparams/shelf_nbsd.sh: Unset STACK_ADDR not OTHER_SECTIONS. * emulparams/shelf_uclinux.sh: Likewise. * emulparams/shlsymbian.sh: Unset STACK_ADDR. Use OTHER_SYMBOLS to define _stack, not OTHER_SECTIONS. * scripttempl/elf.sc: Move STACK, TINY_DATA_SECTION, and TINY_BSS_SECTION before debug sections. Add STACK_SENTINEL. * scripttempl/arclinux.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/armbpabi.sc: Move STACK before debug sections. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Delete STACK. * scripttempl/epiphany_4x4.sc: Delete STACK. Move TINY_DATA_SECTION, TINY_BSS_SECTION, and .stack before debug sections. |
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Nick Clifton
|
a94d834c9d |
Fix SH GOT allocation in the presence of linker garbage collection.
PR ld/17739 ld * emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Define with valye 'yes'. * emulparams/shelf32.sh: Likewise. * emulparams/shelf32.sh: Likewise. * emulparams/shelf_nto.sh: Likewise. * emulparams/shelf_nto.sh: Likewise. * emulparams/shelf_vxworks.sh: Likewise. * emulparams/shelf_vxworks.sh: Likewise. * emulparams/shlelf32_linux.sh: Likewise. * emulparams/shlelf32_linux.sh: Likewise. * emulparams/shlelf_linux.sh: Likewise. * emulparams/shlelf_linux.sh: Likewise. * emulparams/shlelf_nto.sh: Likewise. * emulparams/shlelf_nto.sh: Likewise. bfd * elf32-sh.c (sh_elf_gc_sweep_hook): Delete. (elf_backend_sweep_hook): Delete. |
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Alan Modra
|
485cf67968 |
* scripttempl/elf.sc (NO_REL_RELOCS, NO_RELA_RELOCS, NON_ALLOC_DYN):
Handle these defines. * emulparams/criself.sh, * emulparams/crislinux.sh, * emulparams/elf32am33lin.sh, * emulparams/elf32fr30.sh, * emulparams/elf32_i860.sh, * emulparams/elf32ip2k.sh, * emulparams/elf32mcore.sh, * emulparams/elf32ppccommon.sh, * emulparams/elf32ppcwindiss.sh, * emulparams/elf32_sparc.sh, * emulparams/elf32_spu.sh, * emulparams/elf32vax.sh, * emulparams/elf64alpha.sh, * emulparams/elf64mmix.sh, * emulparams/elf64ppc.sh, * emulparams/elf64_s390.sh, * emulparams/elf64_sparc.sh, * emulparams/elf_s390.sh, * emulparams/elf_x86_64.sh, * emulparams/h8300elf.sh, * emulparams/hppa64linux.sh, * emulparams/hppalinux.sh, * emulparams/m68kelf.sh, * emulparams/mn10200.sh, * emulparams/pjelf.sh, * emulparams/ppclynx.sh, * emulparams/shelf32.sh, * emulparams/shelf_nto.sh, * emulparams/shelf.sh, * emulparams/shelf_vxworks.sh, * emulparams/shlelf32_linux.sh, * emulparams/shlelf_linux.sh, * emulparams/shlelf_nto.sh (NO_REL_RELOCS): Set. * emulparams/arcelf.sh, * emulparams/elf32_i960.sh, * emulparams/elf32openrisc.sh, * emulparams/elf_i386_be.sh, * emulparams/elf_i386_ldso.sh, * emulparams/elf_i386.sh, * emulparams/elf_i386_vxworks.sh, * emulparams/i386lynx.sh, * emulparams/i386moss.sh, * emulparams/i386nto.sh, * emulparams/or32elf.sh, * emulparams/scoreelf.sh (NO_RELA_RELOCS): Set. |
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Kaz Kojima
|
30bebb95d6 |
* emulparams/shelf32.sh: Set default stack to 0x80000.
* emulparams/shelf64.sh: Likewise. |
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Kaz Kojima
|
8a1cb15917 |
* emulparams/shelf.sh (OTHER_SECTIONS): Don't include .stack
section for shared library. * emulparams/shelf32.sh (OTHER_SECTIONS): Likewise. * emulparams/shelf64.sh (OTHER_SECTIONS): Likewise. |
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Joern Rennecke
|
3a51fda661 |
Allow to override sh64 initial stack value with --defsym:
* emulparams/shelf32.sh (STACK_ADDR): Don't define. (OTHER_SECTIONS): Include .stack. * emulparams/shelf64.sh (OTHER_SECTIONS): Likewise. |
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Joern Rennecke
|
a44d7f9cfb |
Re-enable linking for sh5:
ld: * emulparams/shelf32.sh (MACHINE): Now sh5. bfd: * cpu-sh.c (scan_mach): Delete. (arch_info_struct): Replace scan_mach with bfd_default_scan. (bfd_sh_arch): Likewise. |
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Alexandre Oliva
|
2d92cb7d27 |
Contribute sh64-elf.
2002-01-24 Alexandre Oliva <aoliva@redhat.com> * emulparams/shelf32.sh (STACK_ADDR): Define as formerly defined in OTHER_RELOCATABLE_SECTIONS. 2002-01-18 Alexandre Oliva <aoliva@redhat.com> * emulparams/shelf32.sh (STACK_ADDR): Define. (OTHER_RELOCATABLE_SECTIONS): Renamed to... (OTHER_SECTIONS): this. Removed stack settings. * emulparams/shelf64.sh (OTHER_RELOCATABLE_SECTIONS): Do not set. (OTHER_SECTIONS): Reset after sourcing shelf32.sh. 2001-03-12 DJ Delorie <dj@redhat.com> * emultempl/sh64elf.em (sh64_elf_$_before_allocation): Disable relaxing if any shmedia or mixed sections are found. 2001-03-07 DJ Delorie <dj@redhat.com> * emultempl/sh64elf.em (sh64_elf_before_allocation): Pass f to einfo. Gracefully decline to output to non-elf formats. 2001-03-06 Hans-Peter Nilsson <hpn@redhat.com> * emulparams/shelf64.sh (OTHER_RELOCATING_SECTIONS) <.stack>: Default to _end aligned to next multiple of 0x40000, plus 0x40000. * emulparams/shelf32.sh: Ditto. 2001-01-14 Hans-Peter Nilsson <hpn@cygnus.com> * emulparams/shelf32.sh (OTHER_RELOCATING_SECTIONS): Tweak comment. 2001-01-10 Ben Elliston <bje@redhat.com> * emulparams/shelf32.sh (OTHER_RELOCATING_SECTIONS): Avoid non-portable shell constructs. From Hans-Peter Nilsson. 2001-01-09 Hans-Peter Nilsson <hpn@cygnus.com> * emulparams/shelf64.sh (EXTRA_EM_FILE): Define empty. * Makefile.am (eshelf64.c, eshlelf64.c, eshlelf32.c): Adjust dependencies to the shell script include chain. * Makefile.in: Regenerate. 2001-01-06 Hans-Peter Nilsson <hpn@cygnus.com> * emultempl/sh64elf.em: Update and tweak comments. (sh64_elf_${EMULATION_NAME}_after_allocation): Always allocate and make a .cranges section SEC_IN_MEMORY. 2000-12-30 Hans-Peter Nilsson <hpn@cygnus.com> * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation): Don't stop when .cranges section found to be necessary; continue and set stored section contents flags for sections with non-mixed contents. Use a struct sh64_section_data container and sh64_elf_section_data to store contents-type flags. Remove unused update of "isec". (sh64_elf_${EMULATION_NAME}_after_allocation): Only process sections marked SHF_SH5_ISA32_MIXED. Use sh64_elf_section_data to access contents-type flags. Assert that the associated container is initialized. Use that container, not elf_gp_size, to hold size of linker-generated cranges contents. 2000-12-18 Hans-Peter Nilsson <hpn@cygnus.com> * emultempl/sh64elf.em (sh64_elf_${EMULATION_NAME}_before_allocation): Exit early if there's already a .cranges section. When section flag difference is found, don't NULL-check cranges a second time. Tweak comments. (sh64_elf_${EMULATION_NAME}_after_allocation): Use size after merging, not max size, as size of ld-generated .cranges contents. Don't set ELF section flags in output section. When checking for needed .cranges descriptors, don't use a variable; compare incoming ELF section flags directly to SHF_SH5_ISA32_MIXED. Tweak comments. 2000-12-18 Hans-Peter Nilsson <hpn@cygnus.com> * emultempl/sh64elf.em: New file. * Makefile.am (eshelf32.c, eshlelf32.c): Adjust dependencies. * Makefile.in: Regenerate. * emulparams/shelf32.sh (OUTPUT_FORMAT): Only set if not set. (OTHER_RELOCATING_SECTIONS): Ditto. (EXTRA_EM_FILE): New, set to sh64elf if not set. * emulparams/shlelf32.sh: Stub out all settings except OUTPUT_FORMAT. Source shelf32.sh. * emulparams/shelf64.sh: Similar, but also keep ELF_SIZE and OTHER_RELOCATING_SECTIONS. (OTHER_RELOCATING_SECTIONS): Remove .cranges. * emulparams/shlelf64.sh: Stub out all settings except OUTPUT_FORMAT. Source shelf64.sh. 2000-12-15 Hans-Peter Nilsson <hpn@cygnus.com> * emulparams/shelf64.sh (OTHER_RELOCATING_SECTIONS): Include .cranges section. (DATA_START_SYMBOLS): Define, provide ___data. (OTHER_READONLY_SYMBOLS): Define, provide ___rodata and align to 8 for consecutive .data section. (OTHER_GOT_SECTIONS): Define, align to 8 for consecutive .bss section after .data section. * emulparams/shlelf64.sh: Ditto. * emulparams/shelf32.sh: Ditto. (ALIGNMENT): Define to 8. * emulparams/shelf32.sh: Ditto. 2000-12-12 Hans-Peter Nilsson <hpn@cygnus.com> * configure.tgt (sh64-*-elf*): Assign targ_extra_libpath to get built-in linker scripts. 2000-11-30 Hans-Peter Nilsson <hpn@cygnus.com> * emulparams/shlelf64.sh: New. * emulparams/shelf64.sh: New. * configure.tgt (sh64-*-elf*): Add shelf64 and shlelf64 to targ_extra_emuls. * Makefile.am: Add support for shlelf64 and shelf64. * Makefile.in: Regenerate. 2000-11-29 Hans-Peter Nilsson <hpn@cygnus.com> * configure.tgt (sh64-*-elf*): Add shelf as default. Add shlelf to targ_extra_emuls. 2000-11-24 Hans-Peter Nilsson <hpn@cygnus.com> * emulparams/shelf32.sh: New file. * emulparams/shlelf32.sh: New file. * Makefile.am: Add support for shlelf32 and shelf32. * configure.tgt: Map sh64-*-elf* to shlelf32 and shelf32. * Makefile.in: Regenerate. |