X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felf32-m68hc12.c;h=c74f5674db7d6db870f4be24f583fa520b9b934b;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=cfc265efd7332d2d2e36652cc8b5147810dcef0a;hpb=0a6a3ebe971383afdfca26b4f9a2669bd09770b5;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-m68hc12.c b/bfd/elf32-m68hc12.c index cfc265efd7..c74f5674db 100644 --- a/bfd/elf32-m68hc12.c +++ b/bfd/elf32-m68hc12.c @@ -1,26 +1,27 @@ /* Motorola 68HC12-specific support for 32-bit ELF - Copyright 1999, 2000, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 1999-2020 Free Software Foundation, Inc. Contributed by Stephane Carrez (stcarrez@nerim.fr) (Heavily copied from the D10V port by Martin Hunt (hunt@cygnus.com)) -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -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 2 of the License, or -(at your option) any later version. + 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. -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. + 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. -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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 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. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "bfdlink.h" #include "libbfd.h" #include "elf-bfd.h" @@ -31,18 +32,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Relocation functions. */ static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type); -static void m68hc11_info_to_howto_rel +static bfd_boolean m68hc11_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *); /* Trampoline generation. */ -static bfd_boolean m68hc12_elf_size_one_stub - (struct bfd_hash_entry *gen_entry, void *in_arg); -static bfd_boolean m68hc12_elf_build_one_stub - (struct bfd_hash_entry *gen_entry, void *in_arg); -static struct bfd_link_hash_table* m68hc12_elf_bfd_link_hash_table_create - (bfd*); -static bfd_boolean m68hc12_elf_set_mach_from_flags PARAMS ((bfd *)); /* Use REL instead of RELA to save space */ #define USE_REL 1 @@ -68,31 +62,31 @@ static bfd_boolean m68hc12_elf_set_mach_from_flags PARAMS ((bfd *)); Banked Address Space - | | Page n + | | Page n +---------------+ 0x1010000 - | | - | jsr _foo | - | .. | Page 3 - | _foo: | + | | + | jsr _foo | + | .. | Page 3 + | _foo: | +---------------+ 0x100C000 - | | - | call _bar | - | .. | Page 2 - | _bar: | + | | + | call _bar | + | .. | Page 2 + | _bar: | +---------------+ 0x1008000 - /------>| | - | | call _foo | Page 1 - | | | + /------>| | + | | call _foo | Page 1 + | | | | +---------------+ 0x1004000 - Physical | | | - Address Space | | | Page 0 - | | | + Physical | | | + Address Space | | | Page 0 + | | | +-----------+ 0x00FFFF | +---------------+ 0x1000000 | | | | call _foo | | | | | +-----------+ 0x00BFFF -+---/ - | | | + | | | | | | | | 16K | | | | @@ -113,8 +107,8 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { /* This reloc does nothing. */ HOWTO (R_M68HC11_NONE, /* type */ 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ + 3, /* size (0 = byte, 1 = short, 2 = long) */ + 0, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont,/* complain_on_overflow */ @@ -183,7 +177,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE, /* partial_inplace */ 0x00ff, /* src_mask */ 0x00ff, /* dst_mask */ - TRUE), /* pcrel_offset */ + TRUE), /* pcrel_offset */ /* A 16 bit absolute relocation */ HOWTO (R_M68HC11_16, /* type */ @@ -244,7 +238,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ - TRUE), /* pcrel_offset */ + TRUE), /* pcrel_offset */ /* GNU extension to record C++ vtable hierarchy */ HOWTO (R_M68HC11_GNU_VTINHERIT, /* type */ @@ -277,7 +271,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE), /* pcrel_offset */ /* A 24 bit relocation */ - HOWTO (R_M68HC11_24, /* type */ + HOWTO (R_M68HC11_24, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 24, /* bitsize */ @@ -292,7 +286,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE), /* pcrel_offset */ /* A 16-bit low relocation */ - HOWTO (R_M68HC11_LO16, /* type */ + HOWTO (R_M68HC11_LO16, /* type */ 0, /* rightshift */ 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ @@ -307,7 +301,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE), /* pcrel_offset */ /* A page relocation */ - HOWTO (R_M68HC11_PAGE, /* type */ + HOWTO (R_M68HC11_PAGE, /* type */ 0, /* rightshift */ 0, /* size (0 = byte, 1 = short, 2 = long) */ 8, /* bitsize */ @@ -322,11 +316,81 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { FALSE), /* pcrel_offset */ EMPTY_HOWTO (14), - EMPTY_HOWTO (15), - EMPTY_HOWTO (16), - EMPTY_HOWTO (17), - EMPTY_HOWTO (18), - EMPTY_HOWTO (19), + + /* A 16 bit absolute relocation. */ + HOWTO (R_M68HC12_16B, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_M68HC12_16B", /* name */ + FALSE, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 9 bit PC-rel relocation. */ + HOWTO (R_M68HC12_PCREL_9, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 10, /* bitsize (result is >>1) */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_M68HC12_PCREL_9", /* name */ + TRUE, /* partial_inplace */ + 0xfe00, /* src_mask */ + 0x01ff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + /* A 10 bit PC-rel relocation. */ + HOWTO (R_M68HC12_PCREL_10, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 11, /* bitsize (result is >>1) */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_M68HC12_PCREL_10", /* name */ + TRUE, /* partial_inplace */ + 0xfc00, /* src_mask */ + 0x03ff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + /* A 8 bit absolute relocation (upper address). */ + HOWTO (R_M68HC12_HI8XG, /* type */ + 8, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_M68HC12_HI8XG", /* name */ + FALSE, /* partial_inplace */ + 0x00ff, /* src_mask */ + 0x00ff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* A 8 bit absolute relocation (lower address). */ + HOWTO (R_M68HC12_LO8XG, /* type */ + 8, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_M68HC12_LO8XG", /* name */ + FALSE, /* partial_inplace */ + 0x00ff, /* src_mask */ + 0x00ff, /* dst_mask */ + FALSE), /* pcrel_offset */ /* Mark beginning of a jump instruction (any form). */ HOWTO (R_M68HC11_RL_JUMP, /* type */ @@ -341,7 +405,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { TRUE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ - TRUE), /* pcrel_offset */ + TRUE), /* pcrel_offset */ /* Mark beginning of Gcc relaxation group instruction. */ HOWTO (R_M68HC11_RL_GROUP, /* type */ @@ -356,7 +420,7 @@ static reloc_howto_type elf_m68hc11_howto_table[] = { TRUE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ - TRUE), /* pcrel_offset */ + TRUE), /* pcrel_offset */ }; /* Map BFD reloc types to M68HC11 ELF reloc types. */ @@ -367,7 +431,8 @@ struct m68hc11_reloc_map unsigned char elf_reloc_val; }; -static const struct m68hc11_reloc_map m68hc11_reloc_map[] = { +static const struct m68hc11_reloc_map m68hc11_reloc_map[] = +{ {BFD_RELOC_NONE, R_M68HC11_NONE,}, {BFD_RELOC_8, R_M68HC11_8}, {BFD_RELOC_M68HC11_HI8, R_M68HC11_HI8}, @@ -387,11 +452,18 @@ static const struct m68hc11_reloc_map m68hc11_reloc_map[] = { {BFD_RELOC_M68HC11_RL_JUMP, R_M68HC11_RL_JUMP}, {BFD_RELOC_M68HC11_RL_GROUP, R_M68HC11_RL_GROUP}, + + {BFD_RELOC_M68HC12_16B, R_M68HC12_16B}, + + {BFD_RELOC_M68HC12_9_PCREL, R_M68HC12_PCREL_9}, + {BFD_RELOC_M68HC12_10_PCREL, R_M68HC12_PCREL_10}, + {BFD_RELOC_M68HC12_HI8XG, R_M68HC12_HI8XG}, + {BFD_RELOC_M68HC12_LO8XG, R_M68HC12_LO8XG}, }; static reloc_howto_type * bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) + bfd_reloc_code_real_type code) { unsigned int i; @@ -406,17 +478,42 @@ bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return NULL; } +static reloc_howto_type * +bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < (sizeof (elf_m68hc11_howto_table) + / sizeof (elf_m68hc11_howto_table[0])); + i++) + if (elf_m68hc11_howto_table[i].name != NULL + && strcasecmp (elf_m68hc11_howto_table[i].name, r_name) == 0) + return &elf_m68hc11_howto_table[i]; + + return NULL; +} + /* Set the howto pointer for an M68HC11 ELF reloc. */ -static void -m68hc11_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, - arelent *cache_ptr, Elf_Internal_Rela *dst) +static bfd_boolean +m68hc11_info_to_howto_rel (bfd *abfd, + arelent *cache_ptr, Elf_Internal_Rela *dst) { unsigned int r_type; r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_M68HC11_max); + if (r_type >= (unsigned int) R_M68HC11_max) + { + /* xgettext:c-format */ + _bfd_error_handler (_("%pB: unsupported relocation type %#x"), + abfd, r_type); + bfd_set_error (bfd_error_bad_value); + return FALSE; + } cache_ptr->howto = &elf_m68hc11_howto_table[r_type]; + return TRUE; } @@ -438,13 +535,21 @@ m68hc12_elf_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry; info = (struct bfd_link_info *) in_arg; + /* Fail if the target section could not be assigned to an output + section. The user should fix his linker script. */ + if (stub_entry->target_section->output_section == NULL + && info->non_contiguous_regions) + info->callbacks->einfo (_("%F%P: Could not assign '%pA' to an output section. " + "Retry without --enable-non-contiguous-regions.\n"), + stub_entry->target_section); + htab = m68hc11_elf_hash_table (info); stub_sec = stub_entry->stub_sec; /* Make a note of the offset within the stubs for this entry. */ - stub_entry->stub_offset = stub_sec->_raw_size; - stub_sec->_raw_size += 7; + stub_entry->stub_offset = stub_sec->size; + stub_sec->size += 7; loc = stub_sec->contents + stub_entry->stub_offset; stub_bfd = stub_sec->owner; @@ -456,8 +561,8 @@ m68hc12_elf_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) */ sym_value = (stub_entry->target_value - + stub_entry->target_section->output_offset - + stub_entry->target_section->output_section->vma); + + stub_entry->target_section->output_offset + + stub_entry->target_section->output_section->vma); phys_addr = m68hc11_phys_addr (&htab->pinfo, sym_value); phys_page = m68hc11_phys_page (&htab->pinfo, sym_value); @@ -479,14 +584,14 @@ m68hc12_elf_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) static bfd_boolean m68hc12_elf_size_one_stub (struct bfd_hash_entry *gen_entry, - void *in_arg ATTRIBUTE_UNUSED) + void *in_arg ATTRIBUTE_UNUSED) { struct elf32_m68hc11_stub_hash_entry *stub_entry; /* Massage our args to the form they really have. */ stub_entry = (struct elf32_m68hc11_stub_hash_entry *) gen_entry; - stub_entry->stub_sec->_raw_size += 7; + stub_entry->stub_sec->size += 7; return TRUE; } @@ -522,7 +627,7 @@ m68hc12_elf_set_mach_from_flags (bfd *abfd) break; case EF_M68HC11_GENERIC: bfd_default_set_arch_mach (abfd, bfd_arch_m68hc12, - bfd_mach_m6812_default); + bfd_mach_m6812_default); break; default: return FALSE; @@ -535,39 +640,36 @@ m68hc12_elf_set_mach_from_flags (bfd *abfd) Page0 accesses are faster on the M68HC12. - The .vectors is the section that represents the interrupt vectors. */ -static struct bfd_elf_special_section const elf32_m68hc12_special_sections[]= +static const struct bfd_elf_special_section elf32_m68hc12_special_sections[] = { - { ".eeprom", 7, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, - { ".softregs", 9, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, - { ".page0", 6, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, - { ".vectors", 8, 0, SHT_PROGBITS, SHF_ALLOC }, - { NULL, 0, 0, 0, 0 } + { STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, + { STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, + { STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, + { STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC }, + { NULL, 0, 0, 0, 0 } }; #define ELF_ARCH bfd_arch_m68hc12 +#define ELF_TARGET_ID M68HC11_ELF_DATA #define ELF_MACHINE_CODE EM_68HC12 #define ELF_MAXPAGESIZE 0x1000 -#define TARGET_BIG_SYM bfd_elf32_m68hc12_vec +#define TARGET_BIG_SYM m68hc12_elf32_vec #define TARGET_BIG_NAME "elf32-m68hc12" -#define elf_info_to_howto 0 +#define elf_info_to_howto NULL #define elf_info_to_howto_rel m68hc11_info_to_howto_rel -#define elf_backend_gc_mark_hook elf32_m68hc11_gc_mark_hook -#define elf_backend_gc_sweep_hook elf32_m68hc11_gc_sweep_hook #define elf_backend_check_relocs elf32_m68hc11_check_relocs #define elf_backend_relocate_section elf32_m68hc11_relocate_section #define elf_backend_object_p m68hc12_elf_set_mach_from_flags -#define elf_backend_final_write_processing 0 #define elf_backend_can_gc_sections 1 #define elf_backend_special_sections elf32_m68hc12_special_sections -#define elf_backend_post_process_headers elf32_m68hc11_post_process_headers +#define elf_backend_init_file_header elf32_m68hc11_init_file_header #define elf_backend_add_symbol_hook elf32_m68hc11_add_symbol_hook +#define elf_backend_merge_symbol_attribute elf32_m68hc11_merge_symbol_attribute #define bfd_elf32_bfd_link_hash_table_create \ - m68hc12_elf_bfd_link_hash_table_create -#define bfd_elf32_bfd_link_hash_table_free \ - m68hc11_elf_bfd_link_hash_table_free + m68hc12_elf_bfd_link_hash_table_create #define bfd_elf32_bfd_merge_private_bfd_data \ _bfd_m68hc11_elf_merge_private_bfd_data #define bfd_elf32_bfd_set_private_flags _bfd_m68hc11_elf_set_private_flags