diff --git a/bfd/coff-xenon.c b/bfd/coff-xenon.c new file mode 100644 index 00000000000..2e91dd6de27 --- /dev/null +++ b/bfd/coff-xenon.c @@ -0,0 +1,867 @@ +/* Modified for Xbox 360 / FreeChainXenon by Aiden Isik, 2025 */ + +/* BFD back-end for Intel 386 COFF files. + Copyright (C) 1990-2024 Free Software Foundation, Inc. + Written by Cygnus Support. + + 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 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. + + 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 "sysdep.h" +#include "bfd.h" +#include "libbfd.h" + +#include "coff/xenon.h" + +#include "coff/internal.h" + +#ifdef COFF_WITH_PE +#include "coff/pe.h" +#endif + +#ifndef bfd_pe_print_pdata +#define bfd_pe_print_pdata NULL +#endif + +#include "libcoff.h" + +/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */ +#define OCTETS_PER_BYTE(ABFD, SEC) 1 + +static reloc_howto_type *coff_xenon_rtype_to_howto + (bfd *, asection *, struct internal_reloc *, + struct coff_link_hash_entry *, struct internal_syment *, + bfd_vma *); +static reloc_howto_type *coff_xenon_reloc_type_lookup + (bfd *, bfd_reloc_code_real_type); + +#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) +/* The page size is a guess based on ELF. */ + +#define COFF_PAGE_SIZE 0x10000 + +/* For some reason when using i386 COFF the value stored in the .text + section for a reference to a common symbol is the value itself plus + any desired offset. Ian Taylor, Cygnus Support. */ + +/* If we are producing relocatable output, we need to do some + adjustments to the object file that are not done by the + bfd_perform_relocation function. This function is called by every + reloc type to make any required adjustments. */ + +static bfd_reloc_status_type +coff_xenon_reloc (bfd *abfd, + arelent *reloc_entry, + asymbol *symbol, + void * data, + asection *input_section, + bfd *output_bfd, + char **error_message ATTRIBUTE_UNUSED) +{ + symvalue diff; + +#ifndef COFF_WITH_PE + if (output_bfd == (bfd *) NULL) + return bfd_reloc_continue; +#endif + + if (bfd_is_com_section (symbol->section)) + { +#ifndef COFF_WITH_PE + /* We are relocating a common symbol. The current value in the + object file is ORIG + OFFSET, where ORIG is the value of the + common symbol as seen by the object file when it was compiled + (this may be zero if the symbol was undefined) and OFFSET is + the offset into the common symbol (normally zero, but may be + non-zero when referring to a field in a common structure). + ORIG is the negative of reloc_entry->addend, which is set by + the CALC_ADDEND macro below. We want to replace the value in + the object file with NEW + OFFSET, where NEW is the value of + the common symbol which we are going to put in the final + object file. NEW is symbol->value. */ + diff = symbol->value + reloc_entry->addend; +#else + /* In PE mode, we do not offset the common symbol. */ + diff = reloc_entry->addend; +#endif + } + else + { + /* For some reason bfd_perform_relocation always effectively + ignores the addend for a COFF target when producing + relocatable output. This seems to be always wrong for 386 + COFF, so we handle the addend here instead. */ +#ifdef COFF_WITH_PE + if (output_bfd == (bfd *) NULL) + { + reloc_howto_type *howto = reloc_entry->howto; + + /* Although PC relative relocations are very similar between + PE and non-PE formats, but they are off by howto->size + bytes. For the external relocation, PE is very different + from others. See md_apply_fix3 () in gas/config/tc-i386.c. + When we link PE and non-PE object files together to + generate a non-PE executable, we have to compensate it + here. */ + if (howto->pc_relative && howto->pcrel_offset) + diff = -bfd_get_reloc_size (howto); + else if (symbol->flags & BSF_WEAK) + diff = reloc_entry->addend - symbol->value; + else + diff = -reloc_entry->addend; + } + else +#endif + diff = reloc_entry->addend; + } + +#ifdef COFF_WITH_PE + /* FIXME: How should this case be handled? */ + if (reloc_entry->howto->type == R_IMAGEBASE + && output_bfd != NULL + && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour) + diff -= pe_data (output_bfd)->pe_opthdr.ImageBase; +#endif + +#define DOIT(x) \ + x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask)) + + if (diff != 0) + { + reloc_howto_type *howto = reloc_entry->howto; + bfd_size_type octets = (reloc_entry->address + * OCTETS_PER_BYTE (abfd, input_section)); + unsigned char *addr = (unsigned char *) data + octets; + + if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets)) + return bfd_reloc_outofrange; + + switch (bfd_get_reloc_size (howto)) + { + case 1: + { + char x = bfd_get_8 (abfd, addr); + DOIT (x); + bfd_put_8 (abfd, x, addr); + } + break; + + case 2: + { + short x = bfd_get_16 (abfd, addr); + DOIT (x); + bfd_put_16 (abfd, (bfd_vma) x, addr); + } + break; + + case 4: + { + long x = bfd_get_32 (abfd, addr); + DOIT (x); + bfd_put_32 (abfd, (bfd_vma) x, addr); + } + break; + + default: + abort (); + } + } + + /* Now let bfd_perform_relocation finish everything up. */ + return bfd_reloc_continue; +} + +#ifdef COFF_WITH_PE +/* Return TRUE if this relocation should appear in the output .reloc + section. */ + +static bool +in_reloc_p (bfd *abfd ATTRIBUTE_UNUSED, reloc_howto_type *howto) +{ + return ! howto->pc_relative + && howto->type != R_IMAGEBASE + && howto->type != R_SECREL32 + && howto->type != R_SECTION; +} +#endif /* COFF_WITH_PE */ + +#ifndef PCRELOFFSET +#define PCRELOFFSET false +#endif + +static reloc_howto_type howto_table[] = +{ + EMPTY_HOWTO (0), + EMPTY_HOWTO (1), + EMPTY_HOWTO (2), + EMPTY_HOWTO (3), + EMPTY_HOWTO (4), + EMPTY_HOWTO (5), + HOWTO (R_DIR32, /* type */ + 0, /* rightshift */ + 4, /* size */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "dir32", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + true), /* pcrel_offset */ + /* PE IMAGE_REL_I386_DIR32NB relocation (7). */ + HOWTO (R_IMAGEBASE, /* type */ + 0, /* rightshift */ + 4, /* size */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "rva32", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ + EMPTY_HOWTO (010), + EMPTY_HOWTO (011), +#ifdef COFF_WITH_PE + /* 16-bit word section relocation (012). */ + HOWTO (R_SECTION, /* type */ + 0, /* rightshift */ + 2, /* size */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "secidx", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + true), /* pcrel_offset */ + /* 32-bit longword section relative relocation (013). */ + HOWTO (R_SECREL32, /* type */ + 0, /* rightshift */ + 4, /* size */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "secrel32", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + true), /* pcrel_offset */ +#else + EMPTY_HOWTO (012), + EMPTY_HOWTO (013), +#endif + EMPTY_HOWTO (014), + EMPTY_HOWTO (015), + EMPTY_HOWTO (016), + /* Byte relocation (017). */ + HOWTO (R_RELBYTE, /* type */ + 0, /* rightshift */ + 1, /* size */ + 8, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "8", /* name */ + true, /* partial_inplace */ + 0x000000ff, /* src_mask */ + 0x000000ff, /* dst_mask */ + PCRELOFFSET), /* pcrel_offset */ + /* 16-bit word relocation (020). */ + HOWTO (R_RELWORD, /* type */ + 0, /* rightshift */ + 2, /* size */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "16", /* name */ + true, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + PCRELOFFSET), /* pcrel_offset */ + /* 32-bit longword relocation (021). */ + HOWTO (R_RELLONG, /* type */ + 0, /* rightshift */ + 4, /* size */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "32", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + PCRELOFFSET), /* pcrel_offset */ + /* Byte PC relative relocation (022). */ + HOWTO (R_PCRBYTE, /* type */ + 0, /* rightshift */ + 1, /* size */ + 8, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "DISP8", /* name */ + true, /* partial_inplace */ + 0x000000ff, /* src_mask */ + 0x000000ff, /* dst_mask */ + PCRELOFFSET), /* pcrel_offset */ + /* 16-bit word PC relative relocation (023). */ + HOWTO (R_PCRWORD, /* type */ + 0, /* rightshift */ + 2, /* size */ + 16, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "DISP16", /* name */ + true, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + PCRELOFFSET), /* pcrel_offset */ + /* 32-bit longword PC relative relocation (024). */ + HOWTO (R_PCRLONG, /* type */ + 0, /* rightshift */ + 4, /* size */ + 32, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + coff_xenon_reloc, /* special_function */ + "DISP32", /* name */ + true, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + PCRELOFFSET) /* pcrel_offset */ +}; + +#define NUM_HOWTOS (sizeof (howto_table) / sizeof (howto_table[0])) + +/* Turn a howto into a reloc nunmber */ + +#define SELECT_RELOC(x,howto) { x.r_type = howto->type; } +#define BADMAG(x) XENONBADMAG(x) +#define XENON 1 /* Customize coffcode.h */ + +#define RTYPE2HOWTO(cache_ptr, dst) \ + ((cache_ptr)->howto = \ + ((dst)->r_type < NUM_HOWTOS \ + ? howto_table + (dst)->r_type \ + : NULL)) + +/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared + library. On some other COFF targets STYP_BSS is normally + STYP_NOLOAD. */ +#define BSS_NOLOAD_IS_SHARED_LIBRARY + +/* Compute the addend of a reloc. If the reloc is to a common symbol, + the object file contains the value of the common symbol. By the + time this is called, the linker may be using a different symbol + from a different object file with a different value. Therefore, we + hack wildly to locate the original symbol from this file so that we + can make the correct adjustment. This macro sets coffsym to the + symbol from the original file, and uses it to set the addend value + correctly. If this is not a common symbol, the usual addend + calculation is done, except that an additional tweak is needed for + PC relative relocs. + FIXME: This macro refers to symbols and asect; these are from the + calling function, not the macro arguments. */ + +#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ + { \ + coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ + if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ + coffsym = (obj_symbols (abfd) \ + + (cache_ptr->sym_ptr_ptr - symbols)); \ + else if (ptr) \ + coffsym = coff_symbol_from (ptr); \ + if (coffsym != (coff_symbol_type *) NULL \ + && coffsym->native->u.syment.n_scnum == 0) \ + cache_ptr->addend = - coffsym->native->u.syment.n_value; \ + else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ + && ptr->section != (asection *) NULL) \ + cache_ptr->addend = - (ptr->section->vma \ + + COFF_PE_ADDEND_BIAS (ptr)); \ + else \ + cache_ptr->addend = 0; \ + if (ptr && reloc.r_type < NUM_HOWTOS \ + && howto_table[reloc.r_type].pc_relative) \ + cache_ptr->addend += asect->vma; \ + } + +/* We use the special COFF backend linker. For normal i386 COFF, we + can use the generic relocate_section routine. For PE, we need our + own routine. */ + +#ifndef COFF_WITH_PE + +#define coff_relocate_section _bfd_coff_generic_relocate_section + +#else /* COFF_WITH_PE */ + +/* The PE relocate section routine. We handle secidx relocations here, + as well as making sure that we don't do anything for a relocatable + link. */ + +static bool +coff_pe_xenon_relocate_section (bfd *output_bfd, + struct bfd_link_info *info, + bfd *input_bfd, + asection *input_section, + bfd_byte *contents, + struct internal_reloc *relocs, + struct internal_syment *syms, + asection **sections) +{ + struct internal_reloc *rel; + struct internal_reloc *relend; + + if (bfd_link_relocatable (info)) + return true; + + rel = relocs; + relend = rel + input_section->reloc_count; + + for (; rel < relend; rel++) + { + long symndx; + struct coff_link_hash_entry *h; + asection *sec, *s; + uint16_t idx = 0, i = 1; + + if (rel->r_type != R_SECTION) + continue; + + /* Make sure that _bfd_coff_generic_relocate_section won't parse + this reloc after us. */ + rel->r_type = 0; + + symndx = rel->r_symndx; + + if (symndx < 0 + || (unsigned long) symndx >= obj_raw_syment_count (input_bfd)) + continue; + + h = obj_coff_sym_hashes (input_bfd)[symndx]; + + if (h == NULL) + sec = sections[symndx]; + else + { + if (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak) + { + /* Defined weak symbols are a GNU extension. */ + sec = h->root.u.def.section; + } + else + { + sec = NULL; + } + } + + if (!sec) + continue; + + if (bfd_is_abs_section (sec)) + continue; + + if (discarded_section (sec)) + continue; + + s = output_bfd->sections; + while (s) + { + if (s == sec->output_section) + { + idx = i; + break; + } + + i++; + s = s->next; + } + + bfd_putl16 (idx, contents + rel->r_vaddr - input_section->vma); + } + + return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd, + input_section, contents, + relocs, syms, sections); +} + +#define coff_relocate_section coff_pe_xenon_relocate_section + +#endif /* COFF_WITH_PE */ + +/* Convert an rtype to howto for the COFF backend linker. */ + +static reloc_howto_type * +coff_xenon_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, + asection *sec, + struct internal_reloc *rel, + struct coff_link_hash_entry *h, + struct internal_syment *sym, + bfd_vma *addendp) +{ + reloc_howto_type *howto; + + if (rel->r_type >= NUM_HOWTOS) + { + bfd_set_error (bfd_error_bad_value); + return NULL; + } + + howto = howto_table + rel->r_type; + +#ifdef COFF_WITH_PE + /* Cancel out code in _bfd_coff_generic_relocate_section. */ + *addendp = 0; +#endif + + if (howto->pc_relative) + *addendp += sec->vma; + + if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) + { + /* This is a common symbol. The section contents include the + size (sym->n_value) as an addend. The relocate_section + function will be adding in the final value of the symbol. We + need to subtract out the current size in order to get the + correct result. */ + + BFD_ASSERT (h != NULL); + +#ifndef COFF_WITH_PE + /* I think we *do* want to bypass this. If we don't, I have + seen some data parameters get the wrong relocation address. + If I link two versions with and without this section bypassed + and then do a binary comparison, the addresses which are + different can be looked up in the map. The case in which + this section has been bypassed has addresses which correspond + to values I can find in the map. */ + *addendp -= sym->n_value; +#endif + } + +#ifndef COFF_WITH_PE + /* If the output symbol is common (in which case this must be a + relocatable link), we need to add in the final size of the + common symbol. */ + if (h != NULL && h->root.type == bfd_link_hash_common) + *addendp += h->root.u.c.size; +#endif + +#ifdef COFF_WITH_PE + if (howto->pc_relative) + { + *addendp -= 4; + + /* If the symbol is defined, then the generic code is going to + add back the symbol value in order to cancel out an + adjustment it made to the addend. However, we set the addend + to 0 at the start of this function. We need to adjust here, + to avoid the adjustment the generic code will make. FIXME: + This is getting a bit hackish. */ + if (sym != NULL && sym->n_scnum != 0) + *addendp -= sym->n_value; + } + + if (rel->r_type == R_IMAGEBASE + && (bfd_get_flavour(sec->output_section->owner) + == bfd_target_coff_flavour)) + { + *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; + } + + /* PR 17099 - Absolute R_PCRLONG relocations do not need a symbol. */ + if (rel->r_type == R_PCRLONG && sym == NULL) + *addendp -= rel->r_vaddr; + else + BFD_ASSERT (sym != NULL); + + if (rel->r_type == R_SECREL32 && sym != NULL) + { + bfd_vma osect_vma; + + if (h && (h->root.type == bfd_link_hash_defined + || h->root.type == bfd_link_hash_defweak)) + osect_vma = h->root.u.def.section->output_section->vma; + else + { + asection *s; + int i; + + /* Sigh, the only way to get the section to offset against + is to find it the hard way. */ + + for (s = abfd->sections, i = 1; i < sym->n_scnum; i++) + s = s->next; + + osect_vma = s->output_section->vma; + } + + *addendp -= osect_vma; + } +#endif + + return howto; +} + +#define coff_bfd_reloc_type_lookup coff_xenon_reloc_type_lookup +#define coff_bfd_reloc_name_lookup coff_xenon_reloc_name_lookup + +static reloc_howto_type * +coff_xenon_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) +{ + switch (code) + { + case BFD_RELOC_RVA: + return howto_table + R_IMAGEBASE; + case BFD_RELOC_32: + return howto_table + R_DIR32; + case BFD_RELOC_32_PCREL: + return howto_table + R_PCRLONG; + case BFD_RELOC_16: + return howto_table + R_RELWORD; + case BFD_RELOC_16_PCREL: + return howto_table + R_PCRWORD; + case BFD_RELOC_8: + return howto_table + R_RELBYTE; + case BFD_RELOC_8_PCREL: + return howto_table + R_PCRBYTE; +#ifdef COFF_WITH_PE + case BFD_RELOC_32_SECREL: + return howto_table + R_SECREL32; + case BFD_RELOC_16_SECIDX: + return howto_table + R_SECTION; +#endif + default: + BFD_FAIL (); + return 0; + } +} + +static reloc_howto_type * +coff_xenon_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; i < NUM_HOWTOS; i++) + if (howto_table[i].name != NULL + && strcasecmp (howto_table[i].name, r_name) == 0) + return &howto_table[i]; + + return NULL; +} + +#define coff_rtype_to_howto coff_xenon_rtype_to_howto + +#ifdef TARGET_UNDERSCORE + +/* If i386 gcc uses underscores for symbol names, then it does not use + a leading dot for local labels, so if TARGET_UNDERSCORE is defined + we treat all symbols starting with L as local. */ + +static bool +coff_xenon_is_local_label_name (bfd *abfd, const char *name) +{ + if (name[0] == 'L') + return true; + + return _bfd_coff_is_local_label_name (abfd, name); +} + +#define coff_bfd_is_local_label_name coff_xenon_is_local_label_name + +#endif /* TARGET_UNDERSCORE */ + +#include "coffcode.h" + +const bfd_target +#ifdef TARGET_SYM + TARGET_SYM = +#else + xenon_coff_vec = +#endif +{ +#ifdef TARGET_NAME + TARGET_NAME, +#else + "coff-xenon", /* name */ +#endif + bfd_target_coff_flavour, + BFD_ENDIAN_LITTLE, /* data byte order is little */ + BFD_ENDIAN_LITTLE, /* header byte order is little */ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS ), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ +#ifdef COFF_WITH_PE + | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING +#endif + | SEC_CODE | SEC_DATA | SEC_EXCLUDE ), + +#ifdef TARGET_UNDERSCORE + TARGET_UNDERSCORE, /* leading underscore */ +#else + 0, /* leading underscore */ +#endif + '/', /* ar_pad_char */ + 15, /* ar_max_namelen */ + 0, /* match priority. */ + TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ + + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ + +#ifndef COFF_CHECK_FORMAT +#define COFF_CHECK_FORMAT coff_object_p +#endif +#ifndef COFF_WRITE_CONTENTS +#define COFF_WRITE_CONTENTS coff_write_object_contents +#endif + +/* Note that we allow an object file to be treated as a core file as well. */ + + { /* bfd_check_format */ + _bfd_dummy_target, + COFF_CHECK_FORMAT, + bfd_generic_archive_p, + COFF_CHECK_FORMAT + }, + { /* bfd_set_format */ + _bfd_bool_bfd_false_error, + coff_mkobject, + _bfd_generic_mkarchive, + _bfd_bool_bfd_false_error + }, + { /* bfd_write_contents */ + _bfd_bool_bfd_false_error, + COFF_WRITE_CONTENTS, + _bfd_write_archive_contents, + _bfd_bool_bfd_false_error + }, + + BFD_JUMP_TABLE_GENERIC (coff), + BFD_JUMP_TABLE_COPY (coff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), + BFD_JUMP_TABLE_SYMBOLS (coff), + BFD_JUMP_TABLE_RELOCS (coff), + BFD_JUMP_TABLE_WRITE (coff), + BFD_JUMP_TABLE_LINK (coff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + NULL, + + COFF_SWAP_TABLE +}; + +#ifdef COFF_WITH_PE_BIGOBJ +const bfd_target + TARGET_SYM_BIG = +{ + TARGET_NAME_BIG, + bfd_target_coff_flavour, + BFD_ENDIAN_LITTLE, /* data byte order is little */ + BFD_ENDIAN_LITTLE, /* header byte order is little */ + + (HAS_RELOC | EXEC_P | /* object flags */ + HAS_LINENO | HAS_DEBUG | + HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS ), + + (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ +#ifdef COFF_WITH_PE + | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING +#endif + | SEC_CODE | SEC_DATA | SEC_EXCLUDE ), + +#ifdef TARGET_UNDERSCORE + TARGET_UNDERSCORE, /* leading underscore */ +#else + 0, /* leading underscore */ +#endif + '/', /* ar_pad_char */ + 15, /* ar_max_namelen */ + 0, /* match priority. */ + TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ + + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ + bfd_getl64, bfd_getl_signed_64, bfd_putl64, + bfd_getl32, bfd_getl_signed_32, bfd_putl32, + bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ + +/* Note that we allow an object file to be treated as a core file as well. */ + + { /* bfd_check_format */ + _bfd_dummy_target, + COFF_CHECK_FORMAT, + bfd_generic_archive_p, + COFF_CHECK_FORMAT + }, + { /* bfd_set_format */ + _bfd_bool_bfd_false_error, + coff_mkobject, + _bfd_generic_mkarchive, + _bfd_bool_bfd_false_error + }, + { /* bfd_write_contents */ + _bfd_bool_bfd_false_error, + COFF_WRITE_CONTENTS, + _bfd_write_archive_contents, + _bfd_bool_bfd_false_error + }, + + BFD_JUMP_TABLE_GENERIC (coff), + BFD_JUMP_TABLE_COPY (coff), + BFD_JUMP_TABLE_CORE (_bfd_nocore), + BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), + BFD_JUMP_TABLE_SYMBOLS (coff), + BFD_JUMP_TABLE_RELOCS (coff), + BFD_JUMP_TABLE_WRITE (coff), + BFD_JUMP_TABLE_LINK (coff), + BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), + + NULL, + + &bigobj_swap_table +}; +#endif diff --git a/bfd/coffcode.h b/bfd/coffcode.h index ebf4f513fde..6c807016edf 100644 --- a/bfd/coffcode.h +++ b/bfd/coffcode.h @@ -4123,6 +4123,11 @@ coff_write_object_contents (bfd * abfd) internal_a.magic = MIPS_PE_MAGIC; #endif +#if defined(XENON) && defined(COFF_WITH_PE) +#define __A_MAGIC_SET__ + internal_a.magic = XENONMAGIC; +#endif + #ifndef __A_MAGIC_SET__ #include "Your aouthdr magic number is not being set!" #else diff --git a/bfd/config.bfd b/bfd/config.bfd index 6553aac1e99..e3be2524e2e 100644 --- a/bfd/config.bfd +++ b/bfd/config.bfd @@ -512,6 +512,11 @@ case "${targ}" in targ_underscore=yes ;; + *-fcx-*) + targ_defvec=xenon_pe_vec + targ_selvecs="xenon_pe_vec xenon_pei_vec" + ;; + fido-*-elf* ) targ_defvec=m68k_elf32_vec ;; diff --git a/bfd/configure b/bfd/configure index 90a60f50822..9621d28811c 100755 --- a/bfd/configure +++ b/bfd/configure @@ -16083,6 +16083,8 @@ do x86_64_pe_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; x86_64_pe_big_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; x86_64_pei_vec) tb="$tb pei-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; + xenon_pe_vec) tb="$tb pe-xenon.lo peigen.lo $coff" ;; + xenon_pei_vec) tb="$tb pei-xenon.lo peigen.lo $coff" ;; xgate_elf32_vec) tb="$tb elf32-xgate.lo elf32.lo $elf" ;; xstormy16_elf32_vec) tb="$tb elf32-xstormy16.lo elf32.lo $elf" ;; xtensa_elf32_be_vec) tb="$tb xtensa-dynconfig.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;; diff --git a/bfd/configure.ac b/bfd/configure.ac index 6bcfd1b7368..ef2d434b62d 100644 --- a/bfd/configure.ac +++ b/bfd/configure.ac @@ -669,6 +669,8 @@ do x86_64_pe_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; x86_64_pe_big_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; x86_64_pei_vec) tb="$tb pei-x86_64.lo pex64igen.lo $coff"; target_size=64 ;; + xenon_pe_vec) tb="$tb pe-xenon.lo peigen.lo $coff" ;; + xenon_pei_vec) tb="$tb pei-xenon.lo peigen.lo $coff" ;; xgate_elf32_vec) tb="$tb elf32-xgate.lo elf32.lo $elf" ;; xstormy16_elf32_vec) tb="$tb elf32-xstormy16.lo elf32.lo $elf" ;; xtensa_elf32_be_vec) tb="$tb xtensa-dynconfig.lo xtensa-isa.lo xtensa-modules.lo elf32-xtensa.lo elf32.lo $elf" ;; diff --git a/bfd/pe-xenon.c b/bfd/pe-xenon.c new file mode 100644 index 00000000000..8ed03000cd3 --- /dev/null +++ b/bfd/pe-xenon.c @@ -0,0 +1,47 @@ +/* Modified for Xbox 360 / FreeChainXenon by Aiden Isik, 2025 */ + +/* BFD back-end for Intel 386 PECOFF files. + Copyright (C) 1995-2024 Free Software Foundation, Inc. + + 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 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. + + 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 "sysdep.h" +#include "bfd.h" + +#define TARGET_SYM xenon_pe_vec +#define TARGET_NAME "pe-xenon" +#define COFF_WITH_PE +#define PCRELOFFSET true +#define TARGET_UNDERSCORE '_' +#define COFF_LONG_SECTION_NAMES +#define COFF_SUPPORT_GNU_LINKONCE +#define COFF_LONG_FILENAMES + +#define COFF_SECTION_ALIGNMENT_ENTRIES \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ +{ COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".zdebug"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 } + +#include "coff-xenon.c" diff --git a/bfd/pei-xenon.c b/bfd/pei-xenon.c new file mode 100644 index 00000000000..e76378ab675 --- /dev/null +++ b/bfd/pei-xenon.c @@ -0,0 +1,47 @@ +/* Modified for Xbox 360 / FreeChainXenon by Aiden Isik, 2025 */ + +/* BFD back-end for Intel 386 PE IMAGE COFF files. + Copyright (C) 1995-2024 Free Software Foundation, Inc. + + 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 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. + + 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 "sysdep.h" +#include "bfd.h" + +#define TARGET_SYM xenon_pei_vec +#define TARGET_NAME "pei-xenon" +#define COFF_IMAGE_WITH_PE +#define COFF_WITH_PE +#define PCRELOFFSET true +#define TARGET_UNDERSCORE '_' +/* Long section names not allowed in executable images, only object files. */ +#define COFF_LONG_SECTION_NAMES 0 +#define COFF_SUPPORT_GNU_LINKONCE +#define COFF_LONG_FILENAMES + +#define COFF_SECTION_ALIGNMENT_ENTRIES \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".idata"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ +{ COFF_SECTION_NAME_EXACT_MATCH (".pdata"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".debug"), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ +{ COFF_SECTION_NAME_PARTIAL_MATCH (".gnu.linkonce.wi."), \ + COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 } + +#include "coff-xenon.c" diff --git a/bfd/targets.c b/bfd/targets.c index 0d5d73ba462..93e83a2e51a 100644 --- a/bfd/targets.c +++ b/bfd/targets.c @@ -940,6 +940,8 @@ extern const bfd_target x86_64_mach_o_vec; extern const bfd_target x86_64_pe_vec; extern const bfd_target x86_64_pe_big_vec; extern const bfd_target x86_64_pei_vec; +extern const bfd_target xenon_pe_vec; +extern const bfd_target xenon_pei_vec; extern const bfd_target xgate_elf32_vec; extern const bfd_target xstormy16_elf32_vec; extern const bfd_target xtensa_elf32_be_vec; @@ -1357,6 +1359,9 @@ static const bfd_target * const _bfd_target_vector[] = &x86_64_pei_vec, #endif + &xenon_pe_vec, + &xenon_pei_vec, + &xgate_elf32_vec, &xstormy16_elf32_vec, diff --git a/config.sub b/config.sub index 2c6a07ab3c3..2cc32f2389a 100755 --- a/config.sub +++ b/config.sub @@ -1768,7 +1768,7 @@ case $os in | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \ | midnightbsd* | amdhsa* | unleashed* | emscripten* | wasi* \ | nsk* | powerunix* | genode* | zvmoe* | qnx* | emx* | zephyr* \ - | fiwix* | mlibc* | cos* | mbr* | ironclad* ) + | fiwix* | mlibc* | cos* | mbr* | ironclad* | xenon* ) ;; # This one is extra strict with allowed versions sco3.2v2 | sco3.2v[4-9]* | sco5v6*) diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h index a65d1e30ecf..7d7cafbf1ee 100644 --- a/gas/config/tc-ppc.h +++ b/gas/config/tc-ppc.h @@ -31,9 +31,11 @@ struct fix; #endif /* If OBJ_COFF is defined we are assembling XCOFF for AIX or PowerMac. */ +/* #ifdef OBJ_COFF #define OBJ_XCOFF #endif +*/ /* The target BFD architecture. */ #define TARGET_ARCH (ppc_arch ()) diff --git a/gas/configure.tgt b/gas/configure.tgt index d58f21873a3..6b034e59174 100644 --- a/gas/configure.tgt +++ b/gas/configure.tgt @@ -196,6 +196,8 @@ case ${generic_target} in bpf-*-*) fmt=elf ;; epiphany-*-*) fmt=elf ;; + *-fcx-*) fmt=coff em=pe ;; + fr30-*-*) fmt=elf ;; frv-*-*linux*) fmt=elf em=linux;; frv-*-*) fmt=elf ;; diff --git a/include/coff/xenon.h b/include/coff/xenon.h new file mode 100644 index 00000000000..8dbe9372ff4 --- /dev/null +++ b/include/coff/xenon.h @@ -0,0 +1,79 @@ +/* Modified for Xbox 360 / FreeChainXenon by Aiden Isik, 2025 */ + +/* coff information for Intel 386/486. + + Copyright (C) 2001-2024 Free Software Foundation, Inc. + + 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. + + 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. */ + +#define L_LNNO_SIZE 2 +#define INCLUDE_COMDAT_FIELDS_IN_AUXENT +#include "coff/external.h" + +#define COFF_PAGE_SIZE 0x10000 + +/* Bits for f_flags: + F_RELFLG Relocation info stripped from file + F_EXEC File is executable (no unresolved external references) + F_LNNO Line numbers stripped from file + F_LSYMS Local symbols stripped from file + F_AR32WR File has byte ordering of an AR32WR machine (e.g. vax). */ + +#define F_RELFLG (0x0001) +#define F_EXEC (0x0002) +#define F_LNNO (0x0004) +#define F_LSYMS (0x0008) + +#define XENONMAGIC 0x1f2 + +#define XENONBADMAG(x) ( ((x).f_magic != XENONMAGIC) ) + +#define OMAGIC 0404 /* Object files, eg as output. */ +#define ZMAGIC 0413 /* Demand load format, eg normal ld output. */ +#define STMAGIC 0401 /* Target shlib. */ +#define SHMAGIC 0443 /* Host shlib. */ + +/* Define some NT default values. */ +/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ +#define NT_SECTION_ALIGNMENT 0x10000 +#define NT_FILE_ALIGNMENT 0x200 +#define NT_DEF_RESERVE 0x100000 +#define NT_DEF_COMMIT 0x1000 + +/* Relocation directives. */ + +struct external_reloc +{ + char r_vaddr[4]; + char r_symndx[4]; + char r_type[2]; +}; + +#define RELOC struct external_reloc +#define RELSZ 10 + +/* i386 Relocations. */ + +#define R_DIR32 6 +#define R_IMAGEBASE 7 +#define R_SECTION 10 +#define R_SECREL32 11 +#define R_RELBYTE 15 +#define R_RELWORD 16 +#define R_RELLONG 17 +#define R_PCRBYTE 18 +#define R_PCRWORD 19 +#define R_PCRLONG 20 diff --git a/ld/Makefile.am b/ld/Makefile.am index 6a9833e5775..85648922d60 100644 --- a/ld/Makefile.am +++ b/ld/Makefile.am @@ -369,6 +369,7 @@ ALL_EMULATION_SOURCES = \ ev850_rh850.c \ evanilla.c \ evaxnbsd.c \ + exenonpe.c \ exgateelf.c \ ez80.c \ ez8001.c \ diff --git a/ld/Makefile.in b/ld/Makefile.in index 8639e782cdf..4649d9f506e 100644 --- a/ld/Makefile.in +++ b/ld/Makefile.in @@ -880,6 +880,7 @@ ALL_EMULATION_SOURCES = \ ev850_rh850.c \ evanilla.c \ evaxnbsd.c \ + exenonpe.c \ exgateelf.c \ ez80.c \ ez8001.c \ @@ -1579,6 +1580,7 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ev850_rh850.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/evanilla.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/evaxnbsd.Po@am__quote@ +@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exenonpe.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/exgateelf.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ez80.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ez8001.Po@am__quote@ diff --git a/ld/configure.tgt b/ld/configure.tgt index f937f78b876..73072be3b0b 100644 --- a/ld/configure.tgt +++ b/ld/configure.tgt @@ -316,6 +316,9 @@ dlx-*-elf*) targ_emul=elf32_dlx epiphany-*-*) targ_emul=elf32epiphany targ_extra_emuls="elf32epiphany_4x4" ;; +*-fcx-*) targ_emul=xenonpe + targ_extra_ofiles="deffilep.o pdb.o pe-dll.o" + ;; fido*-*-elf*) targ_emul=m68kelf ;; fr30-*-*) targ_emul=elf32fr30 diff --git a/ld/emulparams/xenonpe.sh b/ld/emulparams/xenonpe.sh new file mode 100644 index 00000000000..ab51c6e7d53 --- /dev/null +++ b/ld/emulparams/xenonpe.sh @@ -0,0 +1,10 @@ +ARCH=powerpc64 +SCRIPT_NAME=pe +OUTPUT_FORMAT="pei-xenon" +RELOCATEABLE_OUTPUT_FORMAT="pe-xenon" +TEMPLATE_NAME=pe +SUBSYSTEM=PE_DEF_SUBSYSTEM +INITIAL_SYMBOL_CHAR=\"_\" +TARGET_PAGE_SIZE=0x10000 +GENERATE_AUTO_IMPORT_SCRIPT=1 +TEXT_START_ADDR=0x82000000