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-rw-r--r--bfd/aout-adobe.c527
1 files changed, 527 insertions, 0 deletions
diff --git a/bfd/aout-adobe.c b/bfd/aout-adobe.c
new file mode 100644
index 0000000..2c11ffe
--- /dev/null
+++ b/bfd/aout-adobe.c
@@ -0,0 +1,527 @@
+/* BFD back-end for a.out.adobe binaries.
+ Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Written by Cygnus Support. Based on bout.c.
+
+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 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. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+#include "aout/adobe.h"
+
+#include "aout/stab_gnu.h"
+#include "libaout.h" /* BFD a.out internal data structures */
+
+extern const bfd_target a_out_adobe_vec; /* Forward decl */
+
+static const bfd_target *aout_adobe_callback PARAMS ((bfd *));
+
+extern boolean aout_32_slurp_symbol_table PARAMS ((bfd *abfd));
+extern boolean aout_32_write_syms PARAMS ((bfd *));
+static void aout_adobe_write_section PARAMS ((bfd *abfd, sec_ptr sect));
+
+/* Swaps the information in an executable header taken from a raw byte
+ stream memory image, into the internal exec_header structure. */
+
+void aout_adobe_swap_exec_header_in
+ PARAMS ((bfd *abfd, struct external_exec *raw_bytes,
+ struct internal_exec *execp));
+
+void
+aout_adobe_swap_exec_header_in (abfd, raw_bytes, execp)
+ bfd *abfd;
+ struct external_exec *raw_bytes;
+ struct internal_exec *execp;
+{
+ struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+ /* Now fill in fields in the execp, from the bytes in the raw data. */
+ execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
+ execp->a_text = GET_WORD (abfd, bytes->e_text);
+ execp->a_data = GET_WORD (abfd, bytes->e_data);
+ execp->a_bss = GET_WORD (abfd, bytes->e_bss);
+ execp->a_syms = GET_WORD (abfd, bytes->e_syms);
+ execp->a_entry = GET_WORD (abfd, bytes->e_entry);
+ execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
+ execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
+}
+
+/* Swaps the information in an internal exec header structure into the
+ supplied buffer ready for writing to disk. */
+
+PROTO(void, aout_adobe_swap_exec_header_out,
+ (bfd *abfd,
+ struct internal_exec *execp,
+ struct external_exec *raw_bytes));
+void
+aout_adobe_swap_exec_header_out (abfd, execp, raw_bytes)
+ bfd *abfd;
+ struct internal_exec *execp;
+ struct external_exec *raw_bytes;
+{
+ struct external_exec *bytes = (struct external_exec *)raw_bytes;
+
+ /* Now fill in fields in the raw data, from the fields in the exec struct. */
+ bfd_h_put_32 (abfd, execp->a_info , bytes->e_info);
+ PUT_WORD (abfd, execp->a_text , bytes->e_text);
+ PUT_WORD (abfd, execp->a_data , bytes->e_data);
+ PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
+ PUT_WORD (abfd, execp->a_syms , bytes->e_syms);
+ PUT_WORD (abfd, execp->a_entry , bytes->e_entry);
+ PUT_WORD (abfd, execp->a_trsize, bytes->e_trsize);
+ PUT_WORD (abfd, execp->a_drsize, bytes->e_drsize);
+}
+
+
+static const bfd_target *
+aout_adobe_object_p (abfd)
+ bfd *abfd;
+{
+ struct internal_exec anexec;
+ struct external_exec exec_bytes;
+ char *targ;
+
+ if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
+ != EXEC_BYTES_SIZE) {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+
+ anexec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
+
+ /* Normally we just compare for the magic number.
+ However, a bunch of Adobe tools aren't fixed up yet; they generate
+ files using ZMAGIC(!).
+ If the environment variable GNUTARGET is set to "a.out.adobe", we will
+ take just about any a.out file as an Adobe a.out file. FIXME! */
+
+ if (N_BADMAG (anexec)) {
+ targ = getenv ("GNUTARGET");
+ if (targ && !strcmp (targ, a_out_adobe_vec.name))
+ ; /* Just continue anyway, if specifically set to this format */
+ else
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ }
+
+ aout_adobe_swap_exec_header_in (abfd, &exec_bytes, &anexec);
+ return aout_32_some_aout_object_p (abfd, &anexec, aout_adobe_callback);
+}
+
+
+/* Finish up the opening of a b.out file for reading. Fill in all the
+ fields that are not handled by common code. */
+
+static const bfd_target *
+aout_adobe_callback (abfd)
+ bfd *abfd;
+{
+ struct internal_exec *execp = exec_hdr (abfd);
+ asection *sect;
+ struct external_segdesc ext[1];
+ char *section_name;
+ char try_again[30]; /* name and number */
+ char *newname;
+ int trynum;
+ flagword flags;
+
+ /* Architecture and machine type -- unknown in this format. */
+ bfd_set_arch_mach(abfd, bfd_arch_unknown, 0);
+
+ /* The positions of the string table and symbol table. */
+ obj_str_filepos (abfd) = N_STROFF (*execp);
+ obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+
+ /* Suck up the section information from the file, one section at a time. */
+
+ for (;;) {
+ if (bfd_read ((PTR) ext, 1, sizeof (*ext), abfd) != sizeof (*ext)) {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+ switch (ext->e_type[0]) {
+ case N_TEXT:
+ section_name = ".text";
+ flags = SEC_CODE | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
+ break;
+
+ case N_DATA:
+ section_name = ".data";
+ flags = SEC_DATA | SEC_LOAD | SEC_ALLOC | SEC_HAS_CONTENTS;
+ break;
+
+ case N_BSS:
+ section_name = ".bss";
+ flags = SEC_DATA | SEC_HAS_CONTENTS;
+ break;
+
+ case 0:
+ goto no_more_sections;
+
+ default:
+ (*_bfd_error_handler)
+ (_("%s: Unknown section type in a.out.adobe file: %x\n"),
+ bfd_get_filename (abfd), ext->e_type[0]);
+ goto no_more_sections;
+ }
+
+ /* First one is called ".text" or whatever; subsequent ones are
+ ".text1", ".text2", ... */
+
+ bfd_set_error (bfd_error_no_error);
+ sect = bfd_make_section (abfd, section_name);
+ trynum = 0;
+ while (!sect) {
+ if (bfd_get_error () != bfd_error_no_error)
+ return 0; /* Some other error -- slide into the sunset */
+ sprintf (try_again, "%s%d", section_name, ++trynum);
+ sect = bfd_make_section (abfd, try_again);
+ }
+
+ /* Fix the name, if it is a sprintf'd name. */
+ if (sect->name == try_again) {
+ newname = (char *) bfd_zalloc(abfd, strlen (sect->name));
+ if (newname == NULL)
+ return 0;
+ strcpy (newname, sect->name);
+ sect->name = newname;
+ }
+
+ /* Now set the section's attributes. */
+ bfd_set_section_flags (abfd, sect, flags);
+ sect->_raw_size = ((ext->e_size[0] << 8) /* Assumed big-endian */
+ | ext->e_size[1] << 8)
+ | ext->e_size[2];
+ sect->_cooked_size = sect->_raw_size;
+ sect->vma = bfd_h_get_32 (abfd, ext->e_virtbase);
+ sect->filepos = bfd_h_get_32 (abfd, ext->e_filebase);
+ /* FIXME XXX alignment? */
+
+ /* Set relocation information for first section of each type. */
+ if (trynum == 0) switch (ext->e_type[0]) {
+ case N_TEXT:
+ sect->rel_filepos = N_TRELOFF (*execp);
+ sect->reloc_count = execp->a_trsize;
+ break;
+
+ case N_DATA:
+ sect->rel_filepos = N_DRELOFF (*execp);
+ sect->reloc_count = execp->a_drsize;
+ break;
+ }
+ }
+no_more_sections:
+
+ adata(abfd).reloc_entry_size = sizeof (struct reloc_std_external);
+ adata(abfd).symbol_entry_size = sizeof (struct external_nlist);
+ adata(abfd).page_size = 1; /* Not applicable. */
+ adata(abfd).segment_size = 1; /* Not applicable. */
+ adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+
+ return abfd->xvec;
+}
+
+struct bout_data_struct {
+ struct aoutdata a;
+ struct internal_exec e;
+};
+
+static boolean
+aout_adobe_mkobject (abfd)
+ bfd *abfd;
+{
+ struct bout_data_struct *rawptr;
+
+ rawptr = (struct bout_data_struct *) bfd_zalloc (abfd, sizeof (struct bout_data_struct));
+ if (rawptr == NULL)
+ return false;
+
+ abfd->tdata.bout_data = rawptr;
+ exec_hdr (abfd) = &rawptr->e;
+
+ adata(abfd).reloc_entry_size = sizeof (struct reloc_std_external);
+ adata(abfd).symbol_entry_size = sizeof (struct external_nlist);
+ adata(abfd).page_size = 1; /* Not applicable. */
+ adata(abfd).segment_size = 1; /* Not applicable. */
+ adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+
+ return true;
+}
+
+
+static boolean
+aout_adobe_write_object_contents (abfd)
+ bfd *abfd;
+{
+ struct external_exec swapped_hdr;
+ static struct external_segdesc sentinel[1]; /* Initialized to zero */
+ asection *sect;
+
+ exec_hdr (abfd)->a_info = ZMAGIC;
+
+ /* Calculate text size as total of text sections, etc. */
+
+ exec_hdr (abfd)->a_text = 0;
+ exec_hdr (abfd)->a_data = 0;
+ exec_hdr (abfd)->a_bss = 0;
+ exec_hdr (abfd)->a_trsize = 0;
+ exec_hdr (abfd)->a_drsize = 0;
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_CODE) {
+ exec_hdr (abfd)->a_text += sect->_raw_size;
+ exec_hdr (abfd)->a_trsize += sect->reloc_count *
+ sizeof (struct reloc_std_external);
+ } else if (sect->flags & SEC_DATA) {
+ exec_hdr (abfd)->a_data += sect->_raw_size;
+ exec_hdr (abfd)->a_drsize += sect->reloc_count *
+ sizeof (struct reloc_std_external);
+ } else if (sect->flags & SEC_ALLOC && !(sect->flags & SEC_LOAD)) {
+ exec_hdr (abfd)->a_bss += sect->_raw_size;
+ }
+ }
+
+ exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd)
+ * sizeof (struct external_nlist);
+ exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
+
+ aout_adobe_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);
+
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
+ || (bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd)
+ != EXEC_BYTES_SIZE))
+ return false;
+
+ /* Now write out the section information. Text first, data next, rest
+ afterward. */
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_CODE) {
+ aout_adobe_write_section (abfd, sect);
+ }
+ }
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_DATA) {
+ aout_adobe_write_section (abfd, sect);
+ }
+ }
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (!(sect->flags & (SEC_CODE|SEC_DATA))) {
+ aout_adobe_write_section (abfd, sect);
+ }
+ }
+
+ /* Write final `sentinel` section header (with type of 0). */
+ if (bfd_write ((PTR) sentinel, 1, sizeof (*sentinel), abfd)
+ != sizeof (*sentinel))
+ return false;
+
+ /* Now write out reloc info, followed by syms and strings */
+ if (bfd_get_symcount (abfd) != 0)
+ {
+ if (bfd_seek (abfd, (file_ptr)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET)
+ != 0)
+ return false;
+
+ if (! aout_32_write_syms (abfd))
+ return false;
+
+ if (bfd_seek (abfd, (file_ptr)(N_TRELOFF(*exec_hdr(abfd))), SEEK_SET)
+ != 0)
+ return false;
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_CODE) {
+ if (!aout_32_squirt_out_relocs (abfd, sect))
+ return false;
+ }
+ }
+
+ if (bfd_seek (abfd, (file_ptr)(N_DRELOFF(*exec_hdr(abfd))), SEEK_SET)
+ != 0)
+ return false;
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_DATA) {
+ if (!aout_32_squirt_out_relocs (abfd, sect))
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+static void
+aout_adobe_write_section (abfd, sect)
+ bfd *abfd;
+ sec_ptr sect;
+{
+ /* FIXME XXX */
+}
+
+static boolean
+aout_adobe_set_section_contents (abfd, section, location, offset, count)
+ bfd *abfd;
+ asection *section;
+ PTR location;
+ file_ptr offset;
+ bfd_size_type count;
+{
+ file_ptr section_start;
+ sec_ptr sect;
+
+ if (abfd->output_has_begun == false) { /* set by bfd.c handler */
+
+ /* Assign file offsets to sections. Text sections are first, and
+ are contiguous. Then data sections. Everything else at the end. */
+
+ section_start = N_TXTOFF (ignore<-->me);
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_CODE) {
+ sect->filepos = section_start;
+ /* FIXME: Round to alignment */
+ section_start += sect->_raw_size;
+ }
+ }
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_DATA) {
+ sect->filepos = section_start;
+ /* FIXME: Round to alignment */
+ section_start += sect->_raw_size;
+ }
+ }
+
+ for (sect = abfd->sections; sect; sect = sect->next) {
+ if (sect->flags & SEC_HAS_CONTENTS &&
+ !(sect->flags & (SEC_CODE|SEC_DATA))) {
+ sect->filepos = section_start;
+ /* FIXME: Round to alignment */
+ section_start += sect->_raw_size;
+ }
+ }
+ }
+
+ /* regardless, once we know what we're doing, we might as well get going */
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0)
+ return false;
+
+ if (count != 0) {
+ return (bfd_write ((PTR)location, 1, count, abfd) == count) ?true:false;
+ }
+ return true;
+}
+
+static boolean
+aout_adobe_set_arch_mach (abfd, arch, machine)
+ bfd *abfd;
+ enum bfd_architecture arch;
+ unsigned long machine;
+{
+ if (! bfd_default_set_arch_mach (abfd, arch, machine))
+ return false;
+
+ if (arch == bfd_arch_unknown
+ || arch == bfd_arch_m68k)
+ return true;
+
+ return false;
+}
+
+static int
+aout_adobe_sizeof_headers (ignore_abfd, ignore)
+ bfd *ignore_abfd;
+ boolean ignore;
+{
+ return sizeof(struct internal_exec);
+}
+
+
+
+
+/* Build the transfer vector for Adobe A.Out files. */
+
+#define aout_32_close_and_cleanup aout_32_bfd_free_cached_info
+
+#define aout_32_bfd_make_debug_symbol \
+ ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
+
+#define aout_32_bfd_reloc_type_lookup \
+ ((reloc_howto_type *(*) \
+ PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
+
+#define aout_32_set_arch_mach aout_adobe_set_arch_mach
+#define aout_32_set_section_contents aout_adobe_set_section_contents
+
+#define aout_32_sizeof_headers aout_adobe_sizeof_headers
+#define aout_32_bfd_get_relocated_section_contents \
+ bfd_generic_get_relocated_section_contents
+#define aout_32_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
+#define aout_32_bfd_relax_section bfd_generic_relax_section
+#define aout_32_bfd_gc_sections bfd_generic_gc_sections
+#define aout_32_bfd_link_hash_table_create \
+ _bfd_generic_link_hash_table_create
+#define aout_32_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define aout_32_bfd_final_link _bfd_generic_final_link
+#define aout_32_bfd_link_split_section _bfd_generic_link_split_section
+
+const bfd_target a_out_adobe_vec =
+{
+ "a.out.adobe", /* name */
+ bfd_target_aout_flavour,
+ BFD_ENDIAN_BIG, /* data byte order is unknown (big assumed) */
+ BFD_ENDIAN_BIG, /* hdr byte order is big */
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | WP_TEXT ),
+ /* section flags */
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_DATA | SEC_RELOC),
+ '_', /* symbol leading char */
+ ' ', /* ar_pad_char */
+ 16, /* ar_max_namelen */
+
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
+ {_bfd_dummy_target, aout_adobe_object_p, /* bfd_check_format */
+ bfd_generic_archive_p, _bfd_dummy_target},
+ {bfd_false, aout_adobe_mkobject, /* bfd_set_format */
+ _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, aout_adobe_write_object_contents, /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+
+ BFD_JUMP_TABLE_GENERIC (aout_32),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (_bfd_nocore),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd),
+ BFD_JUMP_TABLE_SYMBOLS (aout_32),
+ BFD_JUMP_TABLE_RELOCS (aout_32),
+ BFD_JUMP_TABLE_WRITE (aout_32),
+ BFD_JUMP_TABLE_LINK (aout_32),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+ (PTR) 0
+};
generated by cgit v1.1 at 2024-11-16 23:04:50 +0000