/* BFD back-end for AIX on PS/2 core files. This was based on trad-core.c, which was written by John Gilmore of Cygnus Support. Copyright (C) 1988-2023 Free Software Foundation, Inc. Written by Minh Tran-Le . Converted to back end form by Ian Lance Taylor . 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/i386.h" #include "coff/internal.h" #include "libcoff.h" #include #if defined (_AIX) && defined (_I386) #define NOCHECKS /* This is for coredump.h. */ #define _h_USER /* Avoid including user.h from coredump.h. */ #include #include #endif /* _AIX && _I386 */ /* Maybe this could work on some other i386 but I have not tried it * mtranle@paris - Tue Sep 24 12:49:35 1991 */ #ifndef COR_MAGIC # define COR_MAGIC "core" #endif /* Need this cast because ptr is really void *. */ #define core_hdr(bfd) \ (((bfd->tdata.trad_core_data))->hdr) #define core_section(bfd,n) \ (((bfd)->tdata.trad_core_data)->sections[n]) #define core_regsec(bfd) \ (((bfd)->tdata.trad_core_data)->reg_section) #define core_reg2sec(bfd) \ (((bfd)->tdata.trad_core_data)->reg2_section) /* These are stored in the bfd's tdata. */ struct trad_core_struct { struct corehdr *hdr; /* core file header */ asection *reg_section; asection *reg2_section; asection *sections[MAX_CORE_SEGS]; }; static bfd_cleanup aix386_core_file_p (bfd *abfd) { int i, n; unsigned char longbuf[4]; /* Raw bytes of various header fields */ bfd_size_type core_size = sizeof (struct corehdr); size_t amt; struct corehdr *core; struct mergem { struct trad_core_struct coredata; struct corehdr internal_core; } *mergem; flagword flags; amt = sizeof (longbuf); if (bfd_bread (longbuf, amt, abfd) != amt) { if (bfd_get_error () != bfd_error_system_call) bfd_set_error (bfd_error_wrong_format); return 0; } if (strncmp (longbuf, COR_MAGIC, 4)) return 0; if (bfd_seek (abfd, (file_ptr) 0, 0) != 0) return 0; amt = sizeof (struct mergem); mergem = (struct mergem *) bfd_zalloc (abfd, amt); if (mergem == NULL) return 0; core = &mergem->internal_core; if ((bfd_bread (core, core_size, abfd)) != core_size) { if (bfd_get_error () != bfd_error_system_call) bfd_set_error (bfd_error_wrong_format); loser: bfd_release (abfd, (char *) mergem); abfd->tdata.any = NULL; bfd_section_list_clear (abfd); return 0; } set_tdata (abfd, &mergem->coredata); core_hdr (abfd) = core; /* Create the sections. */ flags = SEC_HAS_CONTENTS; core_regsec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg", flags); if (core_regsec (abfd) == NULL) goto loser; core_regsec (abfd)->size = sizeof (core->cd_regs); core_regsec (abfd)->vma = (bfd_vma) -1; /* We'll access the regs afresh in the core file, like any section. */ core_regsec (abfd)->filepos = (file_ptr) offsetof (struct corehdr, cd_regs[0]); flags = SEC_HAS_CONTENTS; core_reg2sec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg2", flags); if (core_reg2sec (abfd) == NULL) /* bfd_release frees everything allocated after it's arg. */ goto loser; core_reg2sec (abfd)->size = sizeof (core->cd_fpregs); core_reg2sec (abfd)->vma = (bfd_vma) -1; core_reg2sec (abfd)->filepos = (file_ptr) offsetof (struct corehdr, cd_fpregs); for (i = 0, n = 0; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type); i++) { const char *sname; flagword flags; if (core->cd_segs[i].cs_offset == 0) continue; switch (core->cd_segs[i].cs_type) { case COR_TYPE_DATA: sname = ".data"; flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; break; case COR_TYPE_STACK: sname = ".stack"; flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; break; case COR_TYPE_LIBDATA: sname = ".libdata"; flags = SEC_ALLOC + SEC_HAS_CONTENTS; break; case COR_TYPE_WRITE: sname = ".writeable"; flags = SEC_ALLOC + SEC_HAS_CONTENTS; break; case COR_TYPE_MSC: sname = ".misc"; flags = SEC_ALLOC + SEC_HAS_CONTENTS; break; default: sname = ".unknown"; flags = SEC_ALLOC + SEC_HAS_CONTENTS; break; } core_section (abfd, n) = bfd_make_section_anyway_with_flags (abfd, sname, flags); if (core_section (abfd, n) == NULL) goto loser; core_section (abfd, n)->size = core->cd_segs[i].cs_len; core_section (abfd, n)->vma = core->cd_segs[i].cs_address; core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset; core_section (abfd, n)->alignment_power = 2; n++; } return _bfd_no_cleanup; } static char * aix386_core_file_failing_command (bfd *abfd) { return core_hdr (abfd)->cd_comm; } static int aix386_core_file_failing_signal (bfd *abfd) { return core_hdr (abfd)->cd_cursig; } #define aix386_core_file_matches_executable_p generic_core_file_matches_executable_p #define aix386_core_file_pid _bfd_nocore_core_file_pid /* If somebody calls any byte-swapping routines, shoot them. */ static void swap_abort (void) { /* This way doesn't require any declaration for ANSI to fuck up. */ abort (); } #define NO_GET ((bfd_vma (*) (const void *)) swap_abort) #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort) #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort) #define NO_GET64 ((uint64_t (*) (const void *)) swap_abort) #define NO_PUT64 ((void (*) (uint64_t, void *)) swap_abort) #define NO_GETS64 ((int64_t (*) (const void *)) swap_abort) const bfd_target core_aix386_vec = { "aix386-core", bfd_target_unknown_flavour, BFD_ENDIAN_BIG, /* target byte order */ BFD_ENDIAN_BIG, /* target headers byte order */ (HAS_RELOC | EXEC_P | /* object flags */ HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | WP_TEXT), (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 0, /* leading underscore */ ' ', /* ar_pad_char */ 16, /* ar_max_namelen */ 0, /* match priority. */ TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */ NO_GET64, NO_GETS64, NO_PUT64, NO_GET, NO_GETS, NO_PUT, NO_GET, NO_GETS, NO_PUT, /* data */ NO_GET64, NO_GETS64, NO_PUT64, NO_GET, NO_GETS, NO_PUT, NO_GET, NO_GETS, NO_PUT, /* hdrs */ { /* bfd_check_format */ _bfd_dummy_target, _bfd_dummy_target, _bfd_dummy_target, aix386_core_file_p }, { /* bfd_create_object */ _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error }, { /* bfd_write_contents */ _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error, _bfd_bool_bfd_false_error }, BFD_JUMP_TABLE_GENERIC (_bfd_generic), BFD_JUMP_TABLE_COPY (_bfd_generic), BFD_JUMP_TABLE_CORE (aix386), BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), BFD_JUMP_TABLE_WRITE (_bfd_generic), BFD_JUMP_TABLE_LINK (_bfd_nolink), BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), NULL, NULL };