X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=bfd%2Fcoff-z8k.c;h=f50e1c819ae1e27aa6926fc3140f8d90b1e4632d;hb=708cedb722130686607d086085bac963a406580a;hp=7ad063019a9abdea036f6f4355812c63fefb28e2;hpb=cbfe05c4c649f887c078c9b7268e4484fbe5d45c;p=binutils-gdb.git diff --git a/bfd/coff-z8k.c b/bfd/coff-z8k.c index 7ad063019a9..f50e1c819ae 100644 --- a/bfd/coff-z8k.c +++ b/bfd/coff-z8k.c @@ -1,26 +1,27 @@ /* BFD back-end for Zilog Z800n COFF binaries. - Copyright 1992, 93, 94, 95, 1997 Free Software Foundation, Inc. + Copyright (C) 1992-2023 Free Software Foundation, Inc. Contributed by Cygnus Support. Written by Steve Chamberlain, . -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 "libbfd.h" #include "bfdlink.h" #include "coff/z8k.h" @@ -30,7 +31,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) static reloc_howto_type r_imm32 = -HOWTO (R_IMM32, 0, 1, 32, false, 0, +HOWTO (R_IMM32, 0, 4, 32, false, 0, complain_overflow_bitfield, 0, "r_imm32", true, 0xffffffff, 0xffffffff, false); @@ -39,7 +40,7 @@ HOWTO (R_IMM4L, 0, 1, 4, false, 0, complain_overflow_bitfield, 0, "r_imm4l", true, 0xf, 0xf, false); static reloc_howto_type r_da = -HOWTO (R_IMM16, 0, 1, 16, false, 0, +HOWTO (R_IMM16, 0, 2, 16, false, 0, complain_overflow_bitfield, 0, "r_da", true, 0x0000ffff, 0x0000ffff, false); @@ -48,44 +49,43 @@ HOWTO (R_IMM8, 0, 1, 8, false, 0, complain_overflow_bitfield, 0, "r_imm8", true, 0x000000ff, 0x000000ff, false); -static reloc_howto_type r_jr = -HOWTO (R_JR, 0, 1, 8, true, 0, complain_overflow_signed, 0, - "r_jr", true, 0, 0, true); +static reloc_howto_type r_rel16 = +HOWTO (R_REL16, 0, 2, 16, false, 0, + complain_overflow_bitfield, 0, "r_rel16", true, 0x0000ffff, 0x0000ffff, + true); -/* Turn a howto into a reloc number */ +static reloc_howto_type r_jr = +HOWTO (R_JR, 1, 1, 8, true, 0, complain_overflow_signed, 0, + "r_jr", true, 0xff, 0xff, true); -static int -coff_z8k_select_reloc (howto) - reloc_howto_type *howto; -{ - return howto->type; -} +static reloc_howto_type r_disp7 = +HOWTO (R_DISP7, 0, 1, 7, true, 0, complain_overflow_bitfield, 0, + "r_disp7", true, 0x7f, 0x7f, true); -#define SELECT_RELOC(x,howto) x.r_type = coff_z8k_select_reloc(howto) +static reloc_howto_type r_callr = +HOWTO (R_CALLR, 1, 2, 12, true, 0, complain_overflow_signed, 0, + "r_callr", true, 0xfff, 0xfff, true); #define BADMAG(x) Z8KBADMAG(x) -#define Z8K 1 /* Customize coffcode.h */ +#define Z8K 1 /* Customize coffcode.h. */ #define __A_MAGIC_SET__ -/* Code to swap in the reloc */ -#define SWAP_IN_RELOC_OFFSET bfd_h_get_32 -#define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 +/* Code to swap in the reloc. */ +#define SWAP_IN_RELOC_OFFSET H_GET_32 +#define SWAP_OUT_RELOC_OFFSET H_PUT_32 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) \ dst->r_stuff[0] = 'S'; \ dst->r_stuff[1] = 'C'; -/* 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; +rtype2howto (arelent *internal, struct internal_reloc *dst) { switch (dst->r_type) { default: - abort (); + internal->howto = NULL; break; case R_IMM8: internal->howto = &r_imm8; @@ -96,6 +96,15 @@ rtype2howto (internal, dst) case R_JR: internal->howto = &r_jr; break; + case R_DISP7: + internal->howto = &r_disp7; + break; + case R_CALLR: + internal->howto = &r_callr; + break; + case R_REL16: + internal->howto = &r_rel16; + break; case R_IMM32: internal->howto = &r_imm32; break; @@ -105,9 +114,52 @@ rtype2howto (internal, dst) } } -#define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) +#define RTYPE2HOWTO(internal, relocentry) rtype2howto (internal, relocentry) + +static reloc_howto_type * +coff_z8k_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) +{ + switch (code) + { + case BFD_RELOC_8: return & r_imm8; + case BFD_RELOC_16: return & r_da; + case BFD_RELOC_32: return & r_imm32; + case BFD_RELOC_8_PCREL: return & r_jr; + case BFD_RELOC_16_PCREL: return & r_rel16; + case BFD_RELOC_Z8K_DISP7: return & r_disp7; + case BFD_RELOC_Z8K_CALLR: return & r_callr; + case BFD_RELOC_Z8K_IMM4L: return & r_imm4l; + default: BFD_FAIL (); + return 0; + } +} + +static reloc_howto_type * +coff_z8k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + if (strcasecmp (r_imm8.name, r_name) == 0) + return &r_imm8; + if (strcasecmp (r_da.name, r_name) == 0) + return &r_da; + if (strcasecmp (r_imm32.name, r_name) == 0) + return &r_imm32; + if (strcasecmp (r_jr.name, r_name) == 0) + return &r_jr; + if (strcasecmp (r_rel16.name, r_name) == 0) + return &r_rel16; + if (strcasecmp (r_disp7.name, r_name) == 0) + return &r_disp7; + if (strcasecmp (r_callr.name, r_name) == 0) + return &r_callr; + if (strcasecmp (r_imm4l.name, r_name) == 0) + return &r_imm4l; + + return NULL; +} -/* 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; @@ -116,40 +168,53 @@ rtype2howto (internal, dst) reloc_processing(relent, reloc, symbols, abfd, section) static void -reloc_processing (relent, reloc, symbols, abfd, section) - arelent * relent; - struct internal_reloc *reloc; - asymbol ** symbols; - bfd * abfd; - asection * section; +reloc_processing (arelent *relent, + struct internal_reloc *reloc, + asymbol **symbols, + bfd *abfd, + asection *section) { relent->address = reloc->r_vaddr; rtype2howto (relent, reloc); - if (reloc->r_symndx > 0) - { - relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; - } + if (reloc->r_symndx == -1 || symbols == NULL) + relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; + else if (reloc->r_symndx >= 0 && reloc->r_symndx < obj_conv_table_size (abfd)) + relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; else { + _bfd_error_handler + /* xgettext:c-format */ + (_("%pB: warning: illegal symbol index %ld in relocs"), + abfd, reloc->r_symndx); relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; } - relent->addend = reloc->r_offset; relent->address -= section->vma; } -static void -extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) - bfd *in_abfd; - struct bfd_link_info *link_info; - struct bfd_link_order *link_order; - arelent *reloc; - bfd_byte *data; - unsigned int *src_ptr; - unsigned int *dst_ptr; +static bool +extra_case (bfd *in_abfd, + struct bfd_link_info *link_info, + struct bfd_link_order *link_order, + arelent *reloc, + bfd_byte *data, + size_t *src_ptr, + size_t *dst_ptr) { - asection *input_section = link_order->u.indirect.section; + asection * input_section = link_order->u.indirect.section; + bfd_size_type end = bfd_get_section_limit_octets (in_abfd, input_section); + bfd_size_type reloc_size = bfd_get_reloc_size (reloc->howto); + + if (*src_ptr > end + || reloc_size > end - *src_ptr) + { + link_info->callbacks->einfo + /* xgettext:c-format */ + (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"), + in_abfd, input_section, reloc); + return false; + } switch (reloc->howto->type) { @@ -157,76 +222,181 @@ extra_case (in_abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr) bfd_put_8 (in_abfd, bfd_coff_reloc16_get_value (reloc, link_info, input_section), data + *dst_ptr); - (*dst_ptr) += 1; - (*src_ptr) += 1; + *dst_ptr += 1; + *src_ptr += 1; break; case R_IMM32: - bfd_put_32 (in_abfd, - bfd_coff_reloc16_get_value (reloc, link_info, input_section), - data + *dst_ptr); - (*dst_ptr) += 4; - (*src_ptr) += 4; + /* If no flags are set, assume immediate value. */ + if (! (*reloc->sym_ptr_ptr)->section->flags) + { + bfd_put_32 (in_abfd, + bfd_coff_reloc16_get_value (reloc, link_info, + input_section), + data + *dst_ptr); + } + else + { + bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, + input_section); + /* Addresses are 23 bit, and the layout of those in a 32-bit + value is as follows: + 1AAAAAAA xxxxxxxx AAAAAAAA AAAAAAAA + (A - address bits, x - ignore). */ + dst = (dst & 0xffff) | ((dst & 0xff0000) << 8) | 0x80000000; + bfd_put_32 (in_abfd, dst, data + *dst_ptr); + } + *dst_ptr += 4; + *src_ptr += 4; break; case R_IMM4L: bfd_put_8 (in_abfd, ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0xf0) - | (0x0f - & bfd_coff_reloc16_get_value (reloc, link_info, - input_section))), + | (0x0f & bfd_coff_reloc16_get_value (reloc, link_info, + input_section))), data + *dst_ptr); - (*dst_ptr) += 1; - (*src_ptr) += 1; + *dst_ptr += 1; + *src_ptr += 1; break; case R_IMM16: bfd_put_16 (in_abfd, bfd_coff_reloc16_get_value (reloc, link_info, input_section), data + *dst_ptr); - (*dst_ptr) += 2; - (*src_ptr) += 2; + *dst_ptr += 2; + *src_ptr += 2; break; case R_JR: { bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, input_section); - bfd_vma dot = (link_order->offset - + *dst_ptr + bfd_vma dot = (*dst_ptr + + input_section->output_offset + input_section->output_section->vma); - int gap = dst - dot - 1;/* -1 since were in the odd byte of the - word and the pc's been incremented */ + /* -1, since we're in the odd byte of the word and the pc has + been incremented. */ + bfd_signed_vma gap = dst - dot - 1; - if (gap & 1) - abort (); - gap /= 2; - if (gap > 128 || gap < -128) + if ((gap & 1) != 0 || gap > 254 || gap < -256) { - 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 (); + link_info->callbacks->reloc_overflow + (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address); + return false; } - bfd_put_8 (in_abfd, gap, data + *dst_ptr); - (*dst_ptr)++; - (*src_ptr)++; + + bfd_put_8 (in_abfd, gap / 2, data + *dst_ptr); + *dst_ptr += 1; + *src_ptr += 1; break; } + + case R_DISP7: + { + bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, + input_section); + bfd_vma dot = (*dst_ptr + + input_section->output_offset + + input_section->output_section->vma); + bfd_signed_vma gap = dst - dot - 1; + + if ((gap & 1) != 0 || gap > 0 || gap < -254) + { + link_info->callbacks->reloc_overflow + (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address); + return false; + } + + bfd_put_8 (in_abfd, + ((bfd_get_8 (in_abfd, data + *dst_ptr) & 0x80) + + (-gap / 2 & 0x7f)), + data + *dst_ptr); + *dst_ptr += 1; + *src_ptr += 1; + break; + } + + case R_CALLR: + { + bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, + input_section); + bfd_vma dot = (*dst_ptr + + input_section->output_offset + + input_section->output_section->vma); + bfd_signed_vma gap = dst - dot - 2; + + if ((gap & 1) != 0 || gap > 4096 || gap < -4095) + { + link_info->callbacks->reloc_overflow + (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address); + return false; + } + + bfd_put_16 (in_abfd, + ((bfd_get_16 (in_abfd, data + *dst_ptr) & 0xf000) + | (-gap / 2 & 0x0fff)), + data + *dst_ptr); + *dst_ptr += 2; + *src_ptr += 2; + break; + } + + case R_REL16: + { + bfd_vma dst = bfd_coff_reloc16_get_value (reloc, link_info, + input_section); + bfd_vma dot = (*dst_ptr + + input_section->output_offset + + input_section->output_section->vma); + bfd_signed_vma gap = dst - dot - 2; + + if (gap > 32767 || gap < -32768) + { + link_info->callbacks->reloc_overflow + (link_info, NULL, bfd_asymbol_name (*reloc->sym_ptr_ptr), + reloc->howto->name, reloc->addend, input_section->owner, + input_section, reloc->address); + return false; + } + + bfd_put_16 (in_abfd, gap, data + *dst_ptr); + *dst_ptr += 2; + *src_ptr += 2; + break; + } + default: - abort (); + link_info->callbacks->einfo + /* xgettext:c-format */ + (_("%X%P: %pB(%pA): relocation \"%pR\" is not supported\n"), + in_abfd, input_section, reloc); + return false; } + return true; } -#define coff_reloc16_extra_cases extra_case +#define coff_reloc16_extra_cases extra_case +#define coff_bfd_reloc_type_lookup coff_z8k_reloc_type_lookup +#define coff_bfd_reloc_name_lookup coff_z8k_reloc_name_lookup + +#ifndef bfd_pe_print_pdata +#define bfd_pe_print_pdata NULL +#endif #include "coffcode.h" #undef coff_bfd_get_relocated_section_contents -#undef coff_bfd_relax_section #define coff_bfd_get_relocated_section_contents \ bfd_coff_reloc16_get_relocated_section_contents + +#undef coff_bfd_relax_section #define coff_bfd_relax_section bfd_coff_reloc16_relax_section -CREATE_BIG_COFF_TARGET_VEC (z8kcoff_vec, "coff-z8k", 0, 0, '_', NULL) +CREATE_BIG_COFF_TARGET_VEC (z8k_coff_vec, "coff-z8k", 0, 0, '_', NULL, COFF_SWAP_TABLE)