summaryrefslogtreecommitdiffstats
path: root/binutils-2.25/bfd/archive64.c
diff options
context:
space:
mode:
Diffstat (limited to 'binutils-2.25/bfd/archive64.c')
-rw-r--r--binutils-2.25/bfd/archive64.c240
1 files changed, 240 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/archive64.c b/binutils-2.25/bfd/archive64.c
new file mode 100644
index 00000000..be64e0d3
--- /dev/null
+++ b/binutils-2.25/bfd/archive64.c
@@ -0,0 +1,240 @@
+/* Support for 64-bit ELF archives.
+ Copyright 1996-2013 Free Software Foundation, Inc.
+ Ian Lance Taylor, Cygnus Support
+ Linker support added by Mark Mitchell, CodeSourcery, LLC.
+ <mark@codesourcery.com>
+
+ 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. */
+
+/* This file supports the 64-bit (MIPS) ELF archives. */
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "aout/ar.h"
+
+/* Irix 6 defines a 64bit archive map format, so that they can
+ have archives more than 4 GB in size. */
+
+bfd_boolean bfd_elf64_archive_slurp_armap (bfd *);
+bfd_boolean bfd_elf64_archive_write_armap
+ (bfd *, unsigned int, struct orl *, unsigned int, int);
+
+/* Read an Irix 6 armap. */
+
+bfd_boolean
+bfd_elf64_archive_slurp_armap (bfd *abfd)
+{
+ struct artdata *ardata = bfd_ardata (abfd);
+ char nextname[17];
+ bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
+ struct areltdata *mapdata;
+ bfd_byte int_buf[8];
+ char *stringbase;
+ bfd_byte *raw_armap = NULL;
+ carsym *carsyms;
+ bfd_size_type amt;
+
+ ardata->symdefs = NULL;
+
+ /* Get the name of the first element. */
+ i = bfd_bread (nextname, 16, abfd);
+ if (i == 0)
+ return TRUE;
+ if (i != 16)
+ return FALSE;
+
+ if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
+ return FALSE;
+
+ /* Archives with traditional armaps are still permitted. */
+ if (CONST_STRNEQ (nextname, "/ "))
+ return bfd_slurp_armap (abfd);
+
+ if (! CONST_STRNEQ (nextname, "/SYM64/ "))
+ {
+ bfd_has_map (abfd) = FALSE;
+ return TRUE;
+ }
+
+ mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
+ if (mapdata == NULL)
+ return FALSE;
+ parsed_size = mapdata->parsed_size;
+ free (mapdata);
+
+ if (bfd_bread (int_buf, 8, abfd) != 8)
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_malformed_archive);
+ return FALSE;
+ }
+
+ nsymz = bfd_getb64 (int_buf);
+ stringsize = parsed_size - 8 * nsymz - 8;
+
+ carsym_size = nsymz * sizeof (carsym);
+ ptrsize = 8 * nsymz;
+
+ amt = carsym_size + stringsize + 1;
+ ardata->symdefs = (struct carsym *) bfd_zalloc (abfd, amt);
+ if (ardata->symdefs == NULL)
+ return FALSE;
+ carsyms = ardata->symdefs;
+ stringbase = ((char *) ardata->symdefs) + carsym_size;
+
+ raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
+ if (raw_armap == NULL)
+ goto release_symdefs;
+
+ if (bfd_bread (raw_armap, ptrsize, abfd) != ptrsize
+ || bfd_bread (stringbase, stringsize, abfd) != stringsize)
+ {
+ if (bfd_get_error () != bfd_error_system_call)
+ bfd_set_error (bfd_error_malformed_archive);
+ goto release_raw_armap;
+ }
+
+ for (i = 0; i < nsymz; i++)
+ {
+ carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
+ carsyms->name = stringbase;
+ stringbase += strlen (stringbase) + 1;
+ ++carsyms;
+ }
+ *stringbase = '\0';
+
+ ardata->symdef_count = nsymz;
+ ardata->first_file_filepos = bfd_tell (abfd);
+ /* Pad to an even boundary if you have to. */
+ ardata->first_file_filepos += (ardata->first_file_filepos) % 2;
+
+ bfd_has_map (abfd) = TRUE;
+ bfd_release (abfd, raw_armap);
+
+ return TRUE;
+
+release_raw_armap:
+ bfd_release (abfd, raw_armap);
+release_symdefs:
+ bfd_release (abfd, ardata->symdefs);
+ return FALSE;
+}
+
+/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be
+ able to handle ordinary ELF armaps, but at least on Irix 6.2 the
+ linker crashes. */
+
+bfd_boolean
+bfd_elf64_archive_write_armap (bfd *arch,
+ unsigned int elength,
+ struct orl *map,
+ unsigned int symbol_count,
+ int stridx)
+{
+ unsigned int ranlibsize = (symbol_count * 8) + 8;
+ unsigned int stringsize = stridx;
+ unsigned int mapsize = stringsize + ranlibsize;
+ file_ptr archive_member_file_ptr;
+ bfd *current = arch->archive_head;
+ unsigned int count;
+ struct ar_hdr hdr;
+ int padding;
+ bfd_byte buf[8];
+
+ padding = BFD_ALIGN (mapsize, 8) - mapsize;
+ mapsize += padding;
+
+ /* work out where the first object file will go in the archive */
+ archive_member_file_ptr = (mapsize
+ + elength
+ + sizeof (struct ar_hdr)
+ + SARMAG);
+
+ memset (&hdr, ' ', sizeof (struct ar_hdr));
+ memcpy (hdr.ar_name, "/SYM64/", strlen ("/SYM64/"));
+ if (!_bfd_ar_sizepad (hdr.ar_size, sizeof (hdr.ar_size), mapsize))
+ return FALSE;
+ _bfd_ar_spacepad (hdr.ar_date, sizeof (hdr.ar_date), "%ld",
+ time (NULL));
+ /* This, at least, is what Intel coff sets the values to.: */
+ _bfd_ar_spacepad (hdr.ar_uid, sizeof (hdr.ar_uid), "%ld", 0);
+ _bfd_ar_spacepad (hdr.ar_gid, sizeof (hdr.ar_gid), "%ld", 0);
+ _bfd_ar_spacepad (hdr.ar_mode, sizeof (hdr.ar_mode), "%-7lo", 0);
+ memcpy (hdr.ar_fmag, ARFMAG, 2);
+
+ /* Write the ar header for this item and the number of symbols */
+
+ if (bfd_bwrite (&hdr, sizeof (struct ar_hdr), arch)
+ != sizeof (struct ar_hdr))
+ return FALSE;
+
+ bfd_putb64 ((bfd_vma) symbol_count, buf);
+ if (bfd_bwrite (buf, 8, arch) != 8)
+ return FALSE;
+
+ /* Two passes, first write the file offsets for each symbol -
+ remembering that each offset is on a two byte boundary. */
+
+ /* Write out the file offset for the file associated with each
+ symbol, and remember to keep the offsets padded out. */
+ count = 0;
+ for (current = arch->archive_head;
+ current != NULL && count < symbol_count;
+ current = current->archive_next)
+ {
+ /* For each symbol which is used defined in this object, write out
+ the object file's address in the archive. */
+
+ for (;
+ count < symbol_count && map[count].u.abfd == current;
+ count++)
+ {
+ bfd_putb64 ((bfd_vma) archive_member_file_ptr, buf);
+ if (bfd_bwrite (buf, 8, arch) != 8)
+ return FALSE;
+ }
+
+ /* Add size of this archive entry */
+ archive_member_file_ptr += sizeof (struct ar_hdr);
+ if (! bfd_is_thin_archive (arch))
+ archive_member_file_ptr += arelt_size (current);
+ /* remember about the even alignment */
+ archive_member_file_ptr += archive_member_file_ptr % 2;
+ }
+
+ /* now write the strings themselves */
+ for (count = 0; count < symbol_count; count++)
+ {
+ size_t len = strlen (*map[count].name) + 1;
+
+ if (bfd_bwrite (*map[count].name, len, arch) != len)
+ return FALSE;
+ }
+
+ /* The spec says that this should be padded to an 8 byte boundary.
+ However, the Irix 6.2 tools do not appear to do this. */
+ while (padding != 0)
+ {
+ if (bfd_bwrite ("", 1, arch) != 1)
+ return FALSE;
+ --padding;
+ }
+
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 19:30:58 +0000