--- /dev/null
+/* Intel i386 Mach-O support for BFD.
+ Copyright 2009
+ 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 "mach-o.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "libiberty.h"
+
+#define bfd_mach_o_object_p bfd_mach_o_i386_object_p
+#define bfd_mach_o_core_p bfd_mach_o_i386_core_p
+#define bfd_mach_o_mkobject bfd_mach_o_i386_mkobject
+
+static const bfd_target *
+bfd_mach_o_i386_object_p (bfd *abfd)
+{
+ return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_CPU_TYPE_I386);
+}
+
+static const bfd_target *
+bfd_mach_o_i386_core_p (bfd *abfd)
+{
+ return bfd_mach_o_header_p (abfd,
+ BFD_MACH_O_MH_CORE, BFD_MACH_O_CPU_TYPE_I386);
+}
+
+static bfd_boolean
+bfd_mach_o_i386_mkobject (bfd *abfd)
+{
+ bfd_mach_o_data_struct *mdata;
+
+ if (!bfd_mach_o_mkobject_init (abfd))
+ return FALSE;
+
+ mdata = bfd_mach_o_get_data (abfd);
+ mdata->header.magic = BFD_MACH_O_MH_MAGIC;
+ mdata->header.cputype = BFD_MACH_O_CPU_TYPE_I386;
+ mdata->header.cpusubtype = BFD_MACH_O_CPU_SUBTYPE_X86_ALL;
+ mdata->header.byteorder = BFD_ENDIAN_LITTLE;
+ mdata->header.version = 1;
+
+ return TRUE;
+}
+
+static reloc_howto_type i386_howto_table[]=
+{
+ HOWTO(BFD_RELOC_32, 0, 2, 32, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "32",
+ FALSE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(BFD_RELOC_16, 0, 1, 16, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "16",
+ FALSE, 0xffff, 0xffff, FALSE),
+ HOWTO(BFD_RELOC_8, 0, 0, 8, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "8",
+ FALSE, 0xff, 0xff, FALSE),
+ HOWTO(BFD_RELOC_32_PCREL, 0, 2, 32, TRUE, 0,
+ complain_overflow_bitfield,
+ NULL, "DISP32",
+ FALSE, 0xffffffff, 0xffffffff, TRUE),
+ HOWTO(BFD_RELOC_16_PCREL, 0, 1, 16, TRUE, 0,
+ complain_overflow_bitfield,
+ NULL, "DISP16",
+ FALSE, 0xffff, 0xffff, TRUE),
+ HOWTO(BFD_RELOC_MACH_O_SECTDIFF, 0, 2, 32, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "SECTDIFF_32",
+ FALSE, 0xffffffff, 0xffffffff, FALSE),
+ HOWTO(BFD_RELOC_MACH_O_PAIR, 0, 2, 32, FALSE, 0,
+ complain_overflow_bitfield,
+ NULL, "PAIR_32",
+ FALSE, 0xffffffff, 0xffffffff, FALSE),
+};
+
+static bfd_boolean
+bfd_mach_o_i386_swap_reloc_in (arelent *res, bfd_mach_o_reloc_info *reloc)
+{
+ if (reloc->r_scattered)
+ {
+ switch (reloc->r_type)
+ {
+ case BFD_MACH_O_GENERIC_RELOC_PAIR:
+ if (reloc->r_length != 2)
+ return FALSE;
+ res->howto = &i386_howto_table[6];
+ res->address = res[-1].address;
+ return TRUE;
+ case BFD_MACH_O_GENERIC_RELOC_SECTDIFF:
+ case BFD_MACH_O_GENERIC_RELOC_LOCAL_SECTDIFF:
+ if (reloc->r_length != 2)
+ return FALSE;
+ res->howto = &i386_howto_table[5];
+ return TRUE;
+ default:
+ return FALSE;
+ }
+ }
+ else
+ {
+ switch (reloc->r_type)
+ {
+ case BFD_MACH_O_GENERIC_RELOC_VANILLA:
+ switch ((reloc->r_length << 1) | reloc->r_pcrel)
+ {
+ case 0: /* len = 0, pcrel = 0 */
+ res->howto = &i386_howto_table[2];
+ return TRUE;
+ case 2: /* len = 1, pcrel = 0 */
+ res->howto = &i386_howto_table[1];
+ return TRUE;
+ case 3: /* len = 1, pcrel = 1 */
+ res->howto = &i386_howto_table[4];
+ return TRUE;
+ case 4: /* len = 2, pcrel = 0 */
+ res->howto = &i386_howto_table[0];
+ return TRUE;
+ case 5: /* len = 2, pcrel = 1 */
+ res->howto = &i386_howto_table[3];
+ return TRUE;
+ default:
+ return FALSE;
+ }
+ break;
+ default:
+ return FALSE;
+ }
+ }
+}
+
+static bfd_boolean
+bfd_mach_o_i386_swap_reloc_out (arelent *rel, bfd_mach_o_reloc_info *rinfo)
+{
+ rinfo->r_address = rel->address;
+ switch (rel->howto->type)
+ {
+ case BFD_RELOC_32:
+ case BFD_RELOC_32_PCREL:
+ case BFD_RELOC_16:
+ case BFD_RELOC_16_PCREL:
+ case BFD_RELOC_8:
+ rinfo->r_scattered = 0;
+ rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_VANILLA;
+ rinfo->r_pcrel = rel->howto->pc_relative;
+ rinfo->r_length = rel->howto->size; /* Correct in practice. */
+ if ((*rel->sym_ptr_ptr)->flags & BSF_SECTION_SYM)
+ {
+ rinfo->r_extern = 0;
+ rinfo->r_value = (*rel->sym_ptr_ptr)->section->target_index;
+ }
+ else
+ {
+ rinfo->r_extern = 1;
+ rinfo->r_value = (*rel->sym_ptr_ptr)->udata.i;
+ }
+ break;
+ case BFD_RELOC_MACH_O_SECTDIFF:
+ rinfo->r_scattered = 1;
+ rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_SECTDIFF;
+ rinfo->r_pcrel = 0;
+ rinfo->r_length = 2;
+ rinfo->r_extern = 0;
+ rinfo->r_value = (*rel->sym_ptr_ptr)->value
+ + (*rel->sym_ptr_ptr)->section->vma;
+ break;
+ case BFD_RELOC_MACH_O_PAIR:
+ rinfo->r_address = 0;
+ rinfo->r_scattered = 1;
+ rinfo->r_type = BFD_MACH_O_GENERIC_RELOC_PAIR;
+ rinfo->r_pcrel = 0;
+ rinfo->r_length = 2;
+ rinfo->r_extern = 0;
+ rinfo->r_value = (*rel->sym_ptr_ptr)->value
+ + (*rel->sym_ptr_ptr)->section->vma;
+ break;
+ default:
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static reloc_howto_type *
+bfd_mach_o_i386_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (i386_howto_table) / sizeof (*i386_howto_table); i++)
+ if (code == i386_howto_table[i].type)
+ return &i386_howto_table[i];
+ return NULL;
+}
+
+static reloc_howto_type *
+bfd_mach_o_i386_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED)
+{
+ return NULL;
+}
+
+static bfd_boolean
+bfd_mach_o_i386_print_thread (bfd *abfd, bfd_mach_o_thread_flavour *thread,
+ void *vfile, char *buf)
+{
+ FILE *file = (FILE *)vfile;
+
+ switch (thread->flavour)
+ {
+ case BFD_MACH_O_x86_THREAD_STATE:
+ if (thread->size < (8 + 16 * 4))
+ return FALSE;
+ fprintf (file, " x86_THREAD_STATE:\n");
+ fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 0),
+ (unsigned long)bfd_get_32 (abfd, buf + 4));
+ fprintf (file, " eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 8),
+ (unsigned long)bfd_get_32 (abfd, buf + 12),
+ (unsigned long)bfd_get_32 (abfd, buf + 16),
+ (unsigned long)bfd_get_32 (abfd, buf + 20));
+ fprintf (file, " edi: %08lx esi: %08lx ebp: %08lx esp: %08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 24),
+ (unsigned long)bfd_get_32 (abfd, buf + 28),
+ (unsigned long)bfd_get_32 (abfd, buf + 32),
+ (unsigned long)bfd_get_32 (abfd, buf + 36));
+ fprintf (file, " ss: %08lx flg: %08lx eip: %08lx cs: %08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 40),
+ (unsigned long)bfd_get_32 (abfd, buf + 44),
+ (unsigned long)bfd_get_32 (abfd, buf + 48),
+ (unsigned long)bfd_get_32 (abfd, buf + 52));
+ fprintf (file, " ds: %08lx es: %08lx fs: %08lx gs: %08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 56),
+ (unsigned long)bfd_get_32 (abfd, buf + 60),
+ (unsigned long)bfd_get_32 (abfd, buf + 64),
+ (unsigned long)bfd_get_32 (abfd, buf + 68));
+ return TRUE;
+ case BFD_MACH_O_x86_FLOAT_STATE:
+ if (thread->size < 8)
+ return FALSE;
+ fprintf (file, " x86_FLOAT_STATE:\n");
+ fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 0),
+ (unsigned long)bfd_get_32 (abfd, buf + 4));
+ return TRUE;
+ case BFD_MACH_O_x86_EXCEPTION_STATE:
+ if (thread->size < 8 + 3 * 4)
+ return FALSE;
+ fprintf (file, " x86_EXCEPTION_STATE:\n");
+ fprintf (file, " flavor: 0x%08lx count: 0x%08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 0),
+ (unsigned long)bfd_get_32 (abfd, buf + 4));
+ fprintf (file, " trapno: %08lx err: %08lx faultaddr: %08lx\n",
+ (unsigned long)bfd_get_32 (abfd, buf + 8),
+ (unsigned long)bfd_get_32 (abfd, buf + 12),
+ (unsigned long)bfd_get_32 (abfd, buf + 16));
+ return TRUE;
+ default:
+ break;
+ }
+ return FALSE;
+}
+
+#define bfd_mach_o_swap_reloc_in bfd_mach_o_i386_swap_reloc_in
+#define bfd_mach_o_swap_reloc_out bfd_mach_o_i386_swap_reloc_out
+#define bfd_mach_o_print_thread bfd_mach_o_i386_print_thread
+
+#define bfd_mach_o_bfd_reloc_type_lookup bfd_mach_o_i386_bfd_reloc_type_lookup
+#define bfd_mach_o_bfd_reloc_name_lookup bfd_mach_o_i386_bfd_reloc_name_lookup
+
+#define TARGET_NAME mach_o_i386_vec
+#define TARGET_STRING "mach-o-i386"
+#define TARGET_BIG_ENDIAN 0
+#define TARGET_ARCHIVE 0
+#include "mach-o-target.c"
projects / msp430-binutils.git / blobdiff