binutils-gdb/bfd/elf64-ppc.h

100 lines
3.2 KiB
C
Raw Normal View History

* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
/* PowerPC64-specific support for 64-bit ELF.
Copyright (C) 2002-2017 Free Software Foundation, Inc.
* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
This file is part of BFD, the Binary File Descriptor library.
* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
* elflink.c (_bfd_elf_create_dynamic_sections): Don't set SEC_CODE when plt_not_loaded. * elf64-ppc.c (ppc64_elf_create_dynamic_sections): No need to clear .plt SEC_CODE here. Create .stub and correct .glink flags. (PLT_INITIAL_ENTRY_SIZE): Set to 24. (ppc64_elf_glink_code): Delete. (PPC64_ELF_GLINK_SIZE): Delete. (ADDIS_R12_R2, STD_R2_40R1, LD_R11_0R12, LD_R2_0R12, MTCTR_R11, BCTR, ADDIS_R12_R12_1, LD_R2_40R1, NOP, LI_R0_0, B_DOT, LIS_R0_0, ORI_R0_R0_0): Define. (PLT_CALL_STUB_SIZE, GLINK_CALL_STUB_SIZE): Define. (struct ppc_link_hash_table): Add sstub and plt_overflow. (ppc64_elf_link_hash_table_create): Init them. (ppc64_elf_check_relocs <R_PPC64_REL24>): Refcount .plt entry. Don't copy to shared lib. (ppc64_elf_check_relocs): Call bfd_set_error on errors. (ppc64_elf_gc_sweep_hook <R_PPC64_REL24>): Sweep plt refcount. (allocate_dynrelocs <plt>): Don't change function sym here. Make room for .stub and .glink code. (ppc64_elf_size_dynamic_sections): Handle .stub. Make entry for DT_PPC64_GLINK. (ppc64_elf_final_link): Rename to ppc64_elf_set_toc. Don't call bfd_elf64_bfd_final_link. (bfd_elf64_bfd_final_link): Don't define. (ppc64_elf_size_stubs): New. (build_plt_stub): New. (build_one_stub): New. (ppc64_elf_build_stubs): New. (ppc64_elf_relocate_section <toc relocs>): Remove assert. (ppc64_elf_relocate_section): Don't copy R_PPC64_REL24 relocs. (ppc64_elf_finish_dynamic_symbol): Don't build stubs here. Set DT_PPC64_GLINK entry. Tweak DT_PLTGOT, DT_JMPREL, DT_PLTRELSZ in case output sections not separate. Adjust DT_RELASZ to not include plt relocs. Set reserved got entry. Set got and plt entry size. (elf_backend_got_header_size): Set to 8. * elf64-ppc.h: New file.
2002-01-16 06:50:03 +01:00
/* Used to pass info between ld and bfd. */
struct ppc64_elf_params
{
/* Linker stub bfd. */
bfd *stub_bfd;
/* Linker call-backs. */
asection * (*add_stub_section) (const char *, asection *);
void (*layout_sections_again) (void);
/* Maximum size of a group of input sections that can be handled by
one stub section. A value of +/-1 indicates the bfd back-end
should use a suitable default size. */
bfd_signed_vma group_size;
/* Whether to use a special call stub for __tls_get_addr. */
int tls_get_addr_opt;
/* Whether to allow multiple toc sections. */
int no_multi_toc;
/* Set if PLT call stubs should load r11. */
int plt_static_chain;
/* Set if PLT call stubs need to be thread safe on power7+. */
int plt_thread_safe;
/* Set if individual PLT call stubs should be aligned. */
int plt_stub_align;
PPC64_OPT_LOCALENTRY ELFv2 functions with localentry:0 are those with a single entry point, ie. global entry == local entry, and that have no requirement on r2 or r12, and guarantee r2 is unchanged on return. Such an external function can be called via the PLT without saving r2 or restoring it on return, avoiding a common load-hit-store for small functions. The optimization is attractive. The TOC pointer load-hit-store is a major reason why calls to small functions that need no register saves, or with shrink-wrap, no register saves on a fast path, are slow on powerpc64le. To be safe, this optimization needs ld.so support to check that the run-time matches link-time function implementation. If a function in a shared library with st_other localentry non-zero is called without saving and restoring r2, r2 will be trashed on return, leading to segfaults. For that reason the optimization does not happen for weak functions since a weak definition is a fairly solid hint that the function will likely be overridden. I'm also not enabling the optimization by default unless glibc-2.26 is detected, which should have the ld.so checks implemented. bfd/ * elf64-ppc.c (struct ppc_link_hash_table): Add has_plt_localentry0. (ppc64_elf_merge_symbol_attribute): Merge localentry bits from dynamic objects. (is_elfv2_localentry0): New function. (ppc64_elf_tls_setup): Default params->plt_localentry0. (plt_stub_size): Adjust size for tls_get_addr_opt stub. (build_tls_get_addr_stub): Use a simpler stub when r2 is not saved. (ppc64_elf_size_stubs): Leave stub_type as ppc_stub_plt_call for optimized localentry:0 stubs. (ppc64_elf_build_stubs): Save r2 in ELFv2 __glink_PLTresolve. (ppc64_elf_relocate_section): Leave nop unchanged for optimized localentry:0 stubs. (ppc64_elf_finish_dynamic_sections): Set PPC64_OPT_LOCALENTRY in DT_PPC64_OPT. * elf64-ppc.h (struct ppc64_elf_params): Add plt_localentry0. include/ * elf/ppc64.h (PPC64_OPT_LOCALENTRY): Define. ld/ * emultempl/ppc64elf.em (params): Init plt_localentry0 field. (enum ppc64_opt): New, replacing OPTION_* defines. Add OPTION_PLT_LOCALENTRY, and OPTION_NO_PLT_LOCALENTRY. (PARSE_AND_LIST_*): Support --plt-localentry and --no-plt-localentry. * testsuite/ld-powerpc/elfv2so.d: Update. * testsuite/ld-powerpc/powerpc.exp (TLS opt 5): Use --no-plt-localentry. * testsuite/ld-powerpc/tlsopt5.d: Update.
2017-05-26 02:32:29 +02:00
/* Set if PLT call stubs for localentry:0 functions should omit r2 save. */
int plt_localentry0;
/* Whether to canonicalize .opd so that there are no overlapping
.opd entries. */
int non_overlapping_opd;
/* Whether to emit symbols for stubs. */
int emit_stub_syms;
/* Whether to generate out-of-line register save/restore for gcc -Os code. */
int save_restore_funcs;
/* Set when a potential variable is detected in .toc. */
int object_in_toc;
};
bfd_boolean ppc64_elf_init_stub_bfd
(struct bfd_link_info *, struct ppc64_elf_params *);
bfd_boolean ppc64_elf_edit_opd
(struct bfd_link_info *);
* bfd-in.h (_bfd_elf_tls_setup): Declare. * bfd-in2.h: Regenerate. * elf-bfd.h (struct elf_link_tls_segment): Delete. (struct elf_link_hash_table): Add tls_sec and tls_size. * elf.c (_bfd_elf_link_hash_table_init): Init tls_sec and tls_size. * elflink.c (_bfd_elf_tls_setup): New function. * elflink.h (struct elf_final_link_info): Remove first_tls_sec. (elf_bfd_final_link): Don't set first_tls_sec here. Update code saving tls segment info, round segment size up. (elf_link_output_extsym): Adjust code using tls segment info. (elf_link_input_bfd): Likewise. * elf32-i386.c (dtpoff_base, tpoff): Likewise. * elf32-s390.c (dtpoff_base, tpoff): Likewise. * elf32-sh.c (dtpoff_base, tpoff): Likewise. * elf32-sparc.c (dtpoff_base, tpoff): Likewise. * elf64-s390.c (dtpoff_base, tpoff): Likewise. * elf64-x86-64.c (dtpoff_base, tpoff): Likewise. * elfxx-ia64.c (elfNN_ia64_tprel_base): Likewise. (elfNN_ia64_dtprel_base): Likewise. * elf64-alpha.c (alpha_get_dtprel_base): Likewise. (alpha_get_tprel_base): Likewise. (struct alpha_relax_info): Remove tls_segment. (elf64_alpha_relax_got_load): Adjust invocation of alpha_get_dtprel_base and alpha_get_tprel_base. (elf64_alpha_relax_tls_get_addr): Likewise. (elf64_alpha_relax_section): Likewise. (elf64_alpha_relocate_section): Likewise. (elf64_alpha_relax_find_tls_segment): Delete. * elf32-ppc.c (struct ppc_elf_link_hash_table): Remove tls_sec. (ppc_elf_tls_setup): Call _bfd_elf_tls_setup. Return section. (ppc_elf_relocate_section): Adjust to use elf.tls_sec. * elf32-ppc.h (ppc_elf_tls_setup): Update. * elf64-ppc.c (struct ppc_link_hash_table): Remove tls_sec. (ppc64_elf_tls_setup): Call _bfd_elf_tls_setup. Return section. (ppc64_elf_tls_optimize): Adjust to use elf.tls_sec. (ppc64_elf_relocate_section): Likewise. * elf64-ppc.h (ppc64_elf_tls_setup): Update. * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Call _bfd_elf_tls_setup.
2003-11-04 07:16:39 +01:00
asection *ppc64_elf_tls_setup
(struct bfd_link_info *);
* reloc.c: Add PPC and PPC64 TLS relocs. * libbfd.h: Regenerate. * bfd-in2.h: Regenerate. * elf64-ppc.c (TP_OFFSET, DTP_OFFSET): Declare. (ppc64_elf_howto_raw): Add TLS howto's. Adjust R_PPC64_NONE to be against a 32 bit field. (ppc64_elf_reloc_type_lookup): Handle TLS relocs. (_ppc64_elf_section_data): Add t_symndx and comments. (ppc64_elf_section_data): Use elf_section_data macro. (ppc64_elf_new_section_hook): American spelling. (struct got_entry, struct plt_entry): New. (MUST_BE_DYN_RELOC): Rename from IS_ABSOLUTE_RELOC. (struct ppc_stub_hash_entry): Add "addend" field. (struct ppc_link_hash_entry): Add "tls_type". (TLS_TLS, TLS_GD_LD, TLS_LD, TLS_TPREL, TLS_DTPREL, TLS_EXPLICIT): Define. (struct ppc_link_hash_table): Add tls_sec, tls_get_addr, tlsld_got. (link_hash_newfunc): Init new fields. (ppc64_elf_link_hash_table_create): Likewise. Set init_relcount and init_offset to NULL. (ppc64_elf_copy_indirect_symbol): Copy got and plt info. Don't call _bfd_elf_link_hash_copy_indirect, rather insert relevant code from there. (update_local_sym_info, update_plt_info): New functions. (ppc64_elf_check_relocs): Use them. Handle TLS relocs. Adjust GOT handling to use got.glist rather than got.refcount. Likewise for PLT. (ppc64_elf_gc_sweep_hook): Handle TLS relocs, new GOT and PLT lists. (func_desc_adjust): Adjust for new PLT list. (ppc64_elf_adjust_dynamic_symbol): Likewise. (get_sym_h, get_tls_type): New functions. (ppc64_elf_edit_opd): Remove unused variable. Use get_sym_h. (ppc64_elf_tls_optimize): New function. (allocate_dynrelocs): Adjust for new PLT and GOT lists. Allocate TLS relocs. (ppc64_elf_size_dynamic_sections): Likewise. (ppc_type_of_stub): Adjust for new PLT list. (ppc_build_one_stub): Likewise. (ppc64_elf_size_stubs): Likewise. Use get_sym_h. Treat __tls_get_addr calls specially. (ppc64_elf_relocate_section): Adjust for new GOT and PLT lists. Handle TLS relocs. Report local syms using bfd_elf_local_sym_name. Don't init GOT entries that have a reloc. Generate GOT relocs here.. (ppc64_elf_finish_dynamic_symbol): ..not here. Adjust for PLT list. * elf64-ppc.h (ppc64_elf_tls_optimize): Declare.
2003-02-04 15:50:50 +01:00
bfd_boolean ppc64_elf_tls_optimize
(struct bfd_link_info *);
bfd_boolean ppc64_elf_edit_toc
(struct bfd_link_info *);
bfd_boolean ppc64_elf_has_small_toc_reloc
(asection *);
bfd_vma ppc64_elf_set_toc
(struct bfd_link_info *, bfd *);
* elf64-ppc.c (CROR_151515, CROR_313131): Define. (ppc64_elf_relocate_section): Use them. Don't look for plt calls on R_PPC64_ADDR24 relocs. Require a nop or no link reg on plt call branches. Correct undefined weak destination. (ppc64_elf_func_desc_adjust): Always create at least one blr in .sfpr, and correct case where either only savef* or restf* is needed. Long branch stubs, multiple stub sections. * elf64-ppc.h (ppc64_elf_setup_section_lists): Declare. (ppc64_elf_next_input_section): Declare. * elf64-ppc.c: Move linker-only prototypes. (STUB_SUFFIX): Define. (enum ppc_stub_type): New. (struct ppc_stub_hash_entry): New. (struct ppc_branch_hash_entry): New. (struct ppc_link_hash_entry): Add stub_cache, oh. (struct ppc_link_hash_table): Add stub_hash_table etc. Remove sstub. Add sbrlt, srelbrlt, has_14bit_branch, stub_iteration. Rename plt_overflow to stub_error. (ppc_stub_hash_lookup): Define. (ppc_branch_hash_lookup): Define. (stub_hash_newfunc): New function. (branch_hash_newfunc): New function. (link_hash_newfunc): Init new fields. (ppc64_elf_link_hash_table_create): Likewise. (ppc64_elf_link_hash_table_free): New function. (ppc_stub_name): New function. (ppc_get_stub_entry): New function. (ppc_add_stub): New function. (create_linkage_sections): Use bfd_make_section_anyway. Create .branch_lt and .rela.branch_lt sections. Don't create .stub. (ppc64_elf_check_relocs): Set has_14bit_branch on R_PPC64_REL14*, and set up for plt call stubs. Link func and func desc syms. (ppc64_elf_gc_sweep_hook): Handle REL14* as per REL24. (func_desc_adjust): Avoid hash lookup when func desc sym available via shortcut, and set links when processing. (ppc64_elf_hide_symbol): Likewise. (allocate_dynrelocs): Don't allocate stub section here. (ppc64_elf_size_dynamic_sections): Handle sbrlt and srelbrlt. Remove sstub code. (ppc_type_of_stub): New function. (build_one_stub): Delete. (ppc_build_one_stub): New function. (ppc_size_one_stub): New function. (ppc64_elf_setup_section_lists): New function. (ppc64_elf_next_input_section): New function. (group_sections): New function. (get_local_syms): New function. (ppc64_elf_size_stubs): Rewrite. (ppc64_elf_build_stubs): Rewrite. (ppc64_elf_relocate_section): Look up stub entry for REL24 relocs. Don't propagate REL14* to dynamic objects. Look for long branch stubs if REL14* or REL24 relocs won't reach. (bfd_elf64_bfd_link_hash_table_free): Define.
2002-05-01 04:34:20 +02:00
int ppc64_elf_setup_section_lists
(struct bfd_link_info *);
bfd/ * elf64-ppc.c (struct plt_entry): Move earlier in file. (struct got_entry): Likewise. Add is_indirect and got.ent fields. (struct ppc64_elf_obj_tdata): Change tlsld_got to be a struct got_entry. Update all uses. (struct ppc_link_hash_table): Add got_reli_size and second_toc_pass. Remove no_multi_toc. (update_local_sym_info, ppc64_elf_check_relocs): Clear is_indirect when allocating a new struct got_entry. (allocate_got): New function, extracted from.. (allocate_dynrelocs): ..here. Abort on got entry in non-ppc64 bfd. (ppc64_elf_size_dynamic_sections): Track got relocs allocated in .reliplt by got_reli_size. Set owner on ppc64_tlsld_got entries. (ppc64_elf_setup_section_lists): Remove output_bfd param and no_multi_toc, add add_stub_section and layout_sections_again. Stash new params in htab. Extract some code to.. (ppc64_elf_start_multitoc_partition): ..here. New function. (ppc64_elf_next_toc_section): Check for linker script errors. Handle second pass toc scan. (merge_got_entries, merge_global_got, reallocate_got): New functions. (ppc64_elf_reinit_toc): Rename to.. (ppc64_elf_finish_multitoc_partition): ..this. (ppc64_elf_layout_multitoc): New function. (ppc64_elf_size_stubs): Delete output_bfd, add_stub_section and layout_sections_again params. (ppc64_elf_relocate_section): Handle indirect got entries. * elf64-ppc.h: Update prototypes. Declare new functions. ld/ * emultempl/ppc64elf.em (build_toc_list): Report errors from ppc64_elf_next_toc_section. (after_allocation): Update for changed function names and params. Run second pass of multitoc partitioning.
2010-02-03 13:03:35 +01:00
void ppc64_elf_start_multitoc_partition
(struct bfd_link_info *);
bfd_boolean ppc64_elf_next_toc_section
(struct bfd_link_info *, asection *);
bfd/ * elf64-ppc.c (struct plt_entry): Move earlier in file. (struct got_entry): Likewise. Add is_indirect and got.ent fields. (struct ppc64_elf_obj_tdata): Change tlsld_got to be a struct got_entry. Update all uses. (struct ppc_link_hash_table): Add got_reli_size and second_toc_pass. Remove no_multi_toc. (update_local_sym_info, ppc64_elf_check_relocs): Clear is_indirect when allocating a new struct got_entry. (allocate_got): New function, extracted from.. (allocate_dynrelocs): ..here. Abort on got entry in non-ppc64 bfd. (ppc64_elf_size_dynamic_sections): Track got relocs allocated in .reliplt by got_reli_size. Set owner on ppc64_tlsld_got entries. (ppc64_elf_setup_section_lists): Remove output_bfd param and no_multi_toc, add add_stub_section and layout_sections_again. Stash new params in htab. Extract some code to.. (ppc64_elf_start_multitoc_partition): ..here. New function. (ppc64_elf_next_toc_section): Check for linker script errors. Handle second pass toc scan. (merge_got_entries, merge_global_got, reallocate_got): New functions. (ppc64_elf_reinit_toc): Rename to.. (ppc64_elf_finish_multitoc_partition): ..this. (ppc64_elf_layout_multitoc): New function. (ppc64_elf_size_stubs): Delete output_bfd, add_stub_section and layout_sections_again params. (ppc64_elf_relocate_section): Handle indirect got entries. * elf64-ppc.h: Update prototypes. Declare new functions. ld/ * emultempl/ppc64elf.em (build_toc_list): Report errors from ppc64_elf_next_toc_section. (after_allocation): Update for changed function names and params. Run second pass of multitoc partitioning.
2010-02-03 13:03:35 +01:00
bfd_boolean ppc64_elf_layout_multitoc
(struct bfd_link_info *);
void ppc64_elf_finish_multitoc_partition
(struct bfd_link_info *);
bfd_boolean ppc64_elf_check_init_fini
(struct bfd_link_info *);
bfd_boolean ppc64_elf_next_input_section
(struct bfd_link_info *, asection *);
bfd_boolean ppc64_elf_size_stubs
(struct bfd_link_info *);
bfd_boolean ppc64_elf_build_stubs
(struct bfd_link_info *, char **);