diff options
Diffstat (limited to 'bfd/coff-w65.c')
| -rw-r--r-- | bfd/coff-w65.c | 161 |
1 files changed, 77 insertions, 84 deletions
diff --git a/bfd/coff-w65.c b/bfd/coff-w65.c index df960ef..8ce8ffe 100644 --- a/bfd/coff-w65.c +++ b/bfd/coff-w65.c @@ -1,5 +1,5 @@ /* BFD back-end for WDC 65816 COFF binaries. - Copyright 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. + Copyright 1995, 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc. Written by Steve Chamberlain, <sac@cygnus.com>. This file is part of BFD, the Binary File Descriptor library. @@ -26,23 +26,28 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "coff/internal.h" #include "libcoff.h" +static int select_reloc PARAMS ((reloc_howto_type *)); +static void rtype2howto PARAMS ((arelent *, struct internal_reloc *)); +static void reloc_processing PARAMS ((arelent *, struct internal_reloc *, asymbol **, bfd *, asection *)); +static int w65_reloc16_estimate PARAMS ((bfd *, asection *, arelent *, unsigned int, struct bfd_link_info *)); +static void w65_reloc16_extra_cases PARAMS ((bfd *,struct bfd_link_info *, struct bfd_link_order *, arelent *, bfd_byte *, unsigned int *, unsigned int *)); + #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) static reloc_howto_type howto_table[] = -{ - HOWTO (R_W65_ABS8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "abs8", true, 0x000000ff, 0x000000ff, false), - HOWTO (R_W65_ABS16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "abs16", true, 0x0000ffff, 0x0000ffff, false), - HOWTO (R_W65_ABS24, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "abs24", true, 0x00ffffff, 0x00ffffff, false), - HOWTO (R_W65_ABS8S8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, ">abs8", true, 0x000000ff, 0x000000ff, false), - HOWTO (R_W65_ABS8S16, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "^abs8", true, 0x000000ff, 0x000000ff, false), - HOWTO (R_W65_ABS16S8, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, ">abs16", true, 0x0000ffff, 0x0000ffff, false), - HOWTO (R_W65_ABS16S16,1, 0, 16, false, 0, complain_overflow_bitfield, 0, "^abs16", true, 0x0000ffff, 0x0000ffff, false), - HOWTO (R_W65_PCR8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "pcrel8", true, 0x000000ff, 0x000000ff, true), - HOWTO (R_W65_PCR16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "pcrel16", true, 0x0000ffff, 0x0000ffff, true), - HOWTO (R_W65_DP, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "dp", true, 0x000000ff, 0x000000ff, false), - -}; - -/* Turn a howto into a reloc number */ + { + HOWTO (R_W65_ABS8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "abs8", true, 0x000000ff, 0x000000ff, false), + HOWTO (R_W65_ABS16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "abs16", true, 0x0000ffff, 0x0000ffff, false), + HOWTO (R_W65_ABS24, 0, 2, 32, false, 0, complain_overflow_bitfield, 0, "abs24", true, 0x00ffffff, 0x00ffffff, false), + HOWTO (R_W65_ABS8S8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, ">abs8", true, 0x000000ff, 0x000000ff, false), + HOWTO (R_W65_ABS8S16, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "^abs8", true, 0x000000ff, 0x000000ff, false), + HOWTO (R_W65_ABS16S8, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, ">abs16", true, 0x0000ffff, 0x0000ffff, false), + HOWTO (R_W65_ABS16S16,1, 0, 16, false, 0, complain_overflow_bitfield, 0, "^abs16", true, 0x0000ffff, 0x0000ffff, false), + HOWTO (R_W65_PCR8, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "pcrel8", true, 0x000000ff, 0x000000ff, true), + HOWTO (R_W65_PCR16, 1, 0, 16, false, 0, complain_overflow_bitfield, 0, "pcrel16", true, 0x0000ffff, 0x0000ffff, true), + HOWTO (R_W65_DP, 0, 0, 8, false, 0, complain_overflow_bitfield, 0, "dp", true, 0x000000ff, 0x000000ff, false), + }; + +/* Turn a howto into a reloc number. */ #define SELECT_RELOC(x,howto) \ { x.r_type = select_reloc(howto); } @@ -65,20 +70,19 @@ select_reloc (howto) return howto->type ; } -/* Code to turn a r_type into a howto ptr, uses the above howto table - */ +/* Code to turn a r_type into a howto ptr, uses the above howto table. */ static void rtype2howto (internal, dst) arelent *internal; struct internal_reloc *dst; { - internal->howto = howto_table + dst->r_type - 1; + internal->howto = howto_table + dst->r_type - 1; } #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) -/* Perform any necessary magic to the addend in a reloc entry */ +/* Perform any necessary magic to the addend in a reloc entry. */ #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ cache_ptr->addend = ext_reloc.r_offset; @@ -98,13 +102,9 @@ reloc_processing (relent, reloc, symbols, abfd, section) rtype2howto (relent, reloc); if (((int) reloc->r_symndx) > 0) - { - relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; - } + relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; else - { - relent->sym_ptr_ptr = (asymbol **)&(bfd_abs_symbol); - } + relent->sym_ptr_ptr = (asymbol **)&(bfd_abs_symbol); relent->addend = reloc->r_offset; @@ -113,7 +113,7 @@ reloc_processing (relent, reloc, symbols, abfd, section) } static int -h8300_reloc16_estimate(abfd, input_section, reloc, shrink, link_info) +w65_reloc16_estimate (abfd, input_section, reloc, shrink, link_info) bfd *abfd; asection *input_section; arelent *reloc; @@ -127,7 +127,7 @@ h8300_reloc16_estimate(abfd, input_section, reloc, shrink, link_info) /* The address of the thing to be relocated will have moved back by the size of the shrink - but we don't change reloc->address here, since we need it to know where the relocation lives in the source - uncooked section */ + uncooked section. */ /* reloc->address -= shrink; conceptual */ @@ -140,75 +140,69 @@ h8300_reloc16_estimate(abfd, input_section, reloc, shrink, link_info) shrink+=2; break; - /* Thing is a move one byte */ + /* Thing is a move one byte. */ case R_MOV16B1: - value = bfd_coff_reloc16_get_value(reloc, link_info, input_section); + value = bfd_coff_reloc16_get_value (reloc, link_info, input_section); if (value >= 0xff00) { - /* Change the reloc type from 16bit, possible 8 to 8bit - possible 16 */ + possible 16. */ reloc->howto = reloc->howto + 1; - /* The place to relc moves back by one */ - /* This will be two bytes smaller in the long run */ - shrink +=2 ; - bfd_perform_slip(abfd, 2, input_section, address); + /* The place to relc moves back by one. */ + /* This will be two bytes smaller in the long run. */ + shrink += 2; + bfd_perform_slip (abfd, 2, input_section, address); } break; /* This is the 24 bit branch which could become an 8 bitter, - the relocation points to the first byte of the insn, not the - actual data */ + the relocation points to the first byte of the insn, not the + actual data. */ case R_JMPL1: - value = bfd_coff_reloc16_get_value(reloc, link_info, input_section); + value = bfd_coff_reloc16_get_value (reloc, link_info, input_section); dot = input_section->output_section->vma + input_section->output_offset + address; /* See if the address we're looking at within 127 bytes of where we are, if so then we can use a small branch rather than the - jump we were going to */ - - gap = value - dot ; + jump we were going to. */ + gap = value - dot; - if (-120 < (long)gap && (long)gap < 120 ) + if (-120 < (long) gap && (long) gap < 120) { - /* Change the reloc type from 24bit, possible 8 to 8bit - possible 32 */ + possible 32. */ reloc->howto = reloc->howto + 1; - /* This will be two bytes smaller in the long run */ - shrink +=2 ; - bfd_perform_slip(abfd, 2, input_section, address); + /* This will be two bytes smaller in the long run. */ + shrink += 2; + bfd_perform_slip (abfd, 2, input_section, address); } break; case R_JMP1: - - value = bfd_coff_reloc16_get_value(reloc, link_info, input_section); + value = bfd_coff_reloc16_get_value (reloc, link_info, input_section); dot = input_section->output_section->vma + input_section->output_offset + address; /* See if the address we're looking at within 127 bytes of where we are, if so then we can use a small branch rather than the - jump we were going to */ - + jump we were going to. */ gap = value - (dot - shrink); - if (-120 < (long)gap && (long)gap < 120 ) + if (-120 < (long) gap && (long) gap < 120) { - /* Change the reloc type from 16bit, possible 8 to 8bit - possible 16 */ + possible 16. */ reloc->howto = reloc->howto + 1; - /* The place to relc moves back by one */ + /* The place to relc moves back by one. */ - /* This will be two bytes smaller in the long run */ - shrink +=2 ; - bfd_perform_slip(abfd, 2, input_section, address); + /* This will be two bytes smaller in the long run. */ + shrink += 2; + bfd_perform_slip (abfd, 2, input_section, address); } break; } @@ -216,19 +210,17 @@ h8300_reloc16_estimate(abfd, input_section, reloc, shrink, link_info) return shrink; } -/* First phase of a relaxing link */ +/* First phase of a relaxing link. */ /* Reloc types large small R_MOV16B1 R_MOV16B2 mov.b with 16bit or 8 bit address R_JMP1 R_JMP2 jmp or pcrel branch R_JMPL1 R_JMPL_B8 24jmp or pcrel branch - R_MOV24B1 R_MOV24B2 24 or 8 bit reloc for mov.b - -*/ + R_MOV24B1 R_MOV24B2 24 or 8 bit reloc for mov.b */ static void -h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, +w65_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) bfd *abfd; struct bfd_link_info *link_info; @@ -270,7 +262,7 @@ h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, { unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info, input_section); - gap >>=16; + gap >>= 16; bfd_put_8 (abfd, gap, data + dst_address); dst_address += 1; src_address += 1; @@ -313,7 +305,7 @@ h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, unsigned int gap = bfd_coff_reloc16_get_value (reloc, link_info, input_section); bfd_put_16 (abfd, gap, data + dst_address); - bfd_put_8 (abfd, gap>>16, data+dst_address+2); + bfd_put_8 (abfd, gap >> 16, data+dst_address + 2); dst_address += 3; src_address += 3; } @@ -328,13 +320,14 @@ h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, + link_order->u.indirect.section->output_section->vma; gap -= dot + 1; - if (gap < -128 || gap > 127) { - if (! ((*link_info->callbacks->reloc_overflow) - (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), - reloc->howto->name, reloc->addend, input_section->owner, - input_section, reloc->address))) - abort (); - } + if (gap < -128 || gap > 127) + { + if (! ((*link_info->callbacks->reloc_overflow) + (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address))) + abort (); + } bfd_put_8 (abfd, gap, data + dst_address); dst_address += 1; src_address += 1; @@ -350,14 +343,15 @@ h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, + link_order->u.indirect.section->output_section->vma; /* This wraps within the page, so ignore the relativeness, look at the - high part */ - if ((gap & 0xf0000) != (dot & 0xf0000)) { - if (! ((*link_info->callbacks->reloc_overflow) - (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), - reloc->howto->name, reloc->addend, input_section->owner, - input_section, reloc->address))) - abort (); - } + high part. */ + if ((gap & 0xf0000) != (dot & 0xf0000)) + { + if (! ((*link_info->callbacks->reloc_overflow) + (link_info, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address))) + abort (); + } gap -= dot + 2; bfd_put_16 (abfd, gap, data + dst_address); @@ -372,11 +366,10 @@ h8300_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr, } *src_ptr = src_address; *dst_ptr = dst_address; - } -#define coff_reloc16_extra_cases h8300_reloc16_extra_cases -#define coff_reloc16_estimate h8300_reloc16_estimate +#define coff_reloc16_extra_cases w65_reloc16_extra_cases +#define coff_reloc16_estimate w65_reloc16_estimate #include "coffcode.h" |