aboutsummaryrefslogtreecommitdiff
path: root/binutils/nlmconv.c
diff options
context:
space:
mode:
authorRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
committerRichard Henderson <rth@redhat.com>1999-05-03 07:29:11 +0000
commit252b5132c753830d5fd56823373aed85f2a0db63 (patch)
tree1af963bfd8d3e55167b81def4207f175eaff3a56 /binutils/nlmconv.c
downloadgdb-252b5132c753830d5fd56823373aed85f2a0db63.zip
gdb-252b5132c753830d5fd56823373aed85f2a0db63.tar.gz
gdb-252b5132c753830d5fd56823373aed85f2a0db63.tar.bz2
19990502 sourceware importbinu_ss_19990502
Diffstat (limited to 'binutils/nlmconv.c')
-rw-r--r--binutils/nlmconv.c2212
1 files changed, 2212 insertions, 0 deletions
diff --git a/binutils/nlmconv.c b/binutils/nlmconv.c
new file mode 100644
index 0000000..f1c8b6c
--- /dev/null
+++ b/binutils/nlmconv.c
@@ -0,0 +1,2212 @@
+/* nlmconv.c -- NLM conversion program
+ Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
+
+This file is part of GNU Binutils.
+
+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. */
+
+/* Written by Ian Lance Taylor <ian@cygnus.com>.
+
+ This program can be used to convert any appropriate object file
+ into a NetWare Loadable Module (an NLM). It will accept a linker
+ specification file which is identical to that accepted by the
+ NetWare linker, NLMLINK. */
+
+/* AIX requires this to be the first thing in the file. */
+#ifndef __GNUC__
+# ifdef _AIX
+ #pragma alloca
+#endif
+#endif
+
+#include "bfd.h"
+#include "libiberty.h"
+#include "bucomm.h"
+
+#include <ansidecl.h>
+#include <time.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <sys/file.h>
+#include <assert.h>
+#include <getopt.h>
+
+/* Internal BFD NLM header. */
+#include "libnlm.h"
+#include "nlmconv.h"
+
+#ifdef NLMCONV_ALPHA
+#include "coff/sym.h"
+#include "coff/ecoff.h"
+#endif
+
+/* If strerror is just a macro, we want to use the one from libiberty
+ since it will handle undefined values. */
+#undef strerror
+extern char *strerror ();
+
+#ifndef localtime
+extern struct tm *localtime ();
+#endif
+
+#ifndef SEEK_SET
+#define SEEK_SET 0
+#endif
+
+#ifndef R_OK
+#define R_OK 4
+#define W_OK 2
+#define X_OK 1
+#endif
+
+/* Global variables. */
+
+/* The name used to invoke the program. */
+char *program_name;
+
+/* Local variables. */
+
+/* Whether to print out debugging information (currently just controls
+ whether it prints the linker command if there is one). */
+static int debug;
+
+/* The symbol table. */
+static asymbol **symbols;
+
+/* A section we create in the output file to hold pointers to where
+ the sections of the input file end up. We will put a pointer to
+ this section in the NLM header. These is an entry for each input
+ section. The format is
+ null terminated section name
+ zeroes to adjust to 4 byte boundary
+ 4 byte section data file pointer
+ 4 byte section size
+ We don't need a version number. The way we find this information
+ is by finding a stamp in the NLM header information. If we need to
+ change the format of this information, we can simply change the
+ stamp. */
+static asection *secsec;
+
+/* A temporary file name to be unlinked on exit. Actually, for most
+ errors, we leave it around. It's not clear whether that is helpful
+ or not. */
+static char *unlink_on_exit;
+
+/* The list of long options. */
+static struct option long_options[] =
+{
+ { "debug", no_argument, 0, 'd' },
+ { "header-file", required_argument, 0, 'T' },
+ { "help", no_argument, 0, 'h' },
+ { "input-target", required_argument, 0, 'I' },
+ { "input-format", required_argument, 0, 'I' }, /* Obsolete */
+ { "linker", required_argument, 0, 'l' },
+ { "output-target", required_argument, 0, 'O' },
+ { "output-format", required_argument, 0, 'O' }, /* Obsolete */
+ { "version", no_argument, 0, 'V' },
+ { NULL, no_argument, 0, 0 }
+};
+
+/* Local routines. */
+
+static void show_help PARAMS ((void));
+static void show_usage PARAMS ((FILE *, int));
+static const char *select_output_format PARAMS ((enum bfd_architecture,
+ unsigned long, boolean));
+static void setup_sections PARAMS ((bfd *, asection *, PTR));
+static void copy_sections PARAMS ((bfd *, asection *, PTR));
+static void mangle_relocs PARAMS ((bfd *, asection *, arelent ***,
+ long *, char *,
+ bfd_size_type));
+static void default_mangle_relocs PARAMS ((bfd *, asection *, arelent ***,
+ long *, char *,
+ bfd_size_type));
+static char *link_inputs PARAMS ((struct string_list *, char *));
+
+#ifdef NLMCONV_I386
+static void i386_mangle_relocs PARAMS ((bfd *, asection *, arelent ***,
+ long *, char *,
+ bfd_size_type));
+#endif
+
+#ifdef NLMCONV_ALPHA
+static void alpha_mangle_relocs PARAMS ((bfd *, asection *, arelent ***,
+ long *, char *,
+ bfd_size_type));
+#endif
+
+#ifdef NLMCONV_POWERPC
+static void powerpc_build_stubs PARAMS ((bfd *, bfd *, asymbol ***, long *));
+static void powerpc_resolve_stubs PARAMS ((bfd *, bfd *));
+static void powerpc_mangle_relocs PARAMS ((bfd *, asection *, arelent ***,
+ long *, char *,
+ bfd_size_type));
+#endif
+
+/* The main routine. */
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int opt;
+ char *input_file = NULL;
+ const char *input_format = NULL;
+ const char *output_format = NULL;
+ const char *header_file = NULL;
+ char *ld_arg = NULL;
+ Nlm_Internal_Fixed_Header fixed_hdr_struct;
+ Nlm_Internal_Variable_Header var_hdr_struct;
+ Nlm_Internal_Version_Header version_hdr_struct;
+ Nlm_Internal_Copyright_Header copyright_hdr_struct;
+ Nlm_Internal_Extended_Header extended_hdr_struct;
+ bfd *inbfd;
+ bfd *outbfd;
+ asymbol **newsyms, **outsyms;
+ long symcount, newsymalloc, newsymcount;
+ long symsize;
+ asection *text_sec, *bss_sec, *data_sec;
+ bfd_vma vma;
+ bfd_size_type align;
+ asymbol *endsym;
+ long i;
+ char inlead, outlead;
+ boolean gotstart, gotexit, gotcheck;
+ struct stat st;
+ FILE *custom_data = NULL;
+ FILE *help_data = NULL;
+ FILE *message_data = NULL;
+ FILE *rpc_data = NULL;
+ FILE *shared_data = NULL;
+ size_t custom_size = 0;
+ size_t help_size = 0;
+ size_t message_size = 0;
+ size_t module_size = 0;
+ size_t rpc_size = 0;
+ asection *custom_section = NULL;
+ asection *help_section = NULL;
+ asection *message_section = NULL;
+ asection *module_section = NULL;
+ asection *rpc_section = NULL;
+ asection *shared_section = NULL;
+ bfd *sharedbfd;
+ size_t shared_offset = 0;
+ size_t shared_size = 0;
+ Nlm_Internal_Fixed_Header sharedhdr;
+ int len;
+ char *modname;
+ char **matching;
+
+#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+ setlocale (LC_MESSAGES, "");
+#endif
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ program_name = argv[0];
+ xmalloc_set_program_name (program_name);
+
+ bfd_init ();
+ set_default_bfd_target ();
+
+ while ((opt = getopt_long (argc, argv, "dhI:l:O:T:V", long_options,
+ (int *) NULL))
+ != EOF)
+ {
+ switch (opt)
+ {
+ case 'd':
+ debug = 1;
+ break;
+ case 'h':
+ show_help ();
+ /*NOTREACHED*/
+ case 'I':
+ input_format = optarg;
+ break;
+ case 'l':
+ ld_arg = optarg;
+ break;
+ case 'O':
+ output_format = optarg;
+ break;
+ case 'T':
+ header_file = optarg;
+ break;
+ case 'V':
+ print_version ("nlmconv");
+ /*NOTREACHED*/
+ case 0:
+ break;
+ default:
+ show_usage (stderr, 1);
+ /*NOTREACHED*/
+ }
+ }
+
+ /* The input and output files may be named on the command line. */
+ output_file = NULL;
+ if (optind < argc)
+ {
+ input_file = argv[optind];
+ ++optind;
+ if (optind < argc)
+ {
+ output_file = argv[optind];
+ ++optind;
+ if (optind < argc)
+ show_usage (stderr, 1);
+ if (strcmp (input_file, output_file) == 0)
+ {
+ fprintf (stderr,
+ _("%s: input and output files must be different\n"),
+ program_name);
+ exit (1);
+ }
+ }
+ }
+
+ /* Initialize the header information to default values. */
+ fixed_hdr = &fixed_hdr_struct;
+ memset ((PTR) &fixed_hdr_struct, 0, sizeof fixed_hdr_struct);
+ var_hdr = &var_hdr_struct;
+ memset ((PTR) &var_hdr_struct, 0, sizeof var_hdr_struct);
+ version_hdr = &version_hdr_struct;
+ memset ((PTR) &version_hdr_struct, 0, sizeof version_hdr_struct);
+ copyright_hdr = &copyright_hdr_struct;
+ memset ((PTR) &copyright_hdr_struct, 0, sizeof copyright_hdr_struct);
+ extended_hdr = &extended_hdr_struct;
+ memset ((PTR) &extended_hdr_struct, 0, sizeof extended_hdr_struct);
+ check_procedure = NULL;
+ custom_file = NULL;
+ debug_info = false;
+ exit_procedure = "_Stop";
+ export_symbols = NULL;
+ map_file = NULL;
+ full_map = false;
+ help_file = NULL;
+ import_symbols = NULL;
+ message_file = NULL;
+ modules = NULL;
+ sharelib_file = NULL;
+ start_procedure = "_Prelude";
+ verbose = false;
+ rpc_file = NULL;
+
+ parse_errors = 0;
+
+ /* Parse the header file (if there is one). */
+ if (header_file != NULL)
+ {
+ if (! nlmlex_file (header_file)
+ || yyparse () != 0
+ || parse_errors != 0)
+ exit (1);
+ }
+
+ if (input_files != NULL)
+ {
+ if (input_file != NULL)
+ {
+ fprintf (stderr,
+ _("%s: input file named both on command line and with INPUT\n"),
+ program_name);
+ exit (1);
+ }
+ if (input_files->next == NULL)
+ input_file = input_files->string;
+ else
+ input_file = link_inputs (input_files, ld_arg);
+ }
+ else if (input_file == NULL)
+ {
+ fprintf (stderr, _("%s: no input file\n"), program_name);
+ show_usage (stderr, 1);
+ }
+
+ inbfd = bfd_openr (input_file, input_format);
+ if (inbfd == NULL)
+ bfd_fatal (input_file);
+
+ if (! bfd_check_format_matches (inbfd, bfd_object, &matching))
+ {
+ bfd_nonfatal (input_file);
+ if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
+ {
+ list_matching_formats (matching);
+ free (matching);
+ }
+ exit (1);
+ }
+
+ if (output_format == NULL)
+ output_format = select_output_format (bfd_get_arch (inbfd),
+ bfd_get_mach (inbfd),
+ bfd_big_endian (inbfd));
+
+ assert (output_format != NULL);
+
+ /* Use the output file named on the command line if it exists.
+ Otherwise use the file named in the OUTPUT statement. */
+ if (output_file == NULL)
+ {
+ fprintf (stderr, _("%s: no name for output file\n"),
+ program_name);
+ show_usage (stderr, 1);
+ }
+
+ outbfd = bfd_openw (output_file, output_format);
+ if (outbfd == NULL)
+ bfd_fatal (output_file);
+ if (! bfd_set_format (outbfd, bfd_object))
+ bfd_fatal (output_file);
+
+ assert (bfd_get_flavour (outbfd) == bfd_target_nlm_flavour);
+
+ if (bfd_arch_get_compatible (inbfd, outbfd) == NULL)
+ fprintf (stderr,
+ _("%s: warning:input and output formats are not compatible\n"),
+ program_name);
+
+ /* Move the values read from the command file into outbfd. */
+ *nlm_fixed_header (outbfd) = fixed_hdr_struct;
+ *nlm_variable_header (outbfd) = var_hdr_struct;
+ *nlm_version_header (outbfd) = version_hdr_struct;
+ *nlm_copyright_header (outbfd) = copyright_hdr_struct;
+ *nlm_extended_header (outbfd) = extended_hdr_struct;
+
+ /* Start copying the input BFD to the output BFD. */
+ if (! bfd_set_file_flags (outbfd, bfd_get_file_flags (inbfd)))
+ bfd_fatal (bfd_get_filename (outbfd));
+
+ symsize = bfd_get_symtab_upper_bound (inbfd);
+ if (symsize < 0)
+ bfd_fatal (input_file);
+ symbols = (asymbol **) xmalloc (symsize);
+ symcount = bfd_canonicalize_symtab (inbfd, symbols);
+ if (symcount < 0)
+ bfd_fatal (input_file);
+
+ /* Make sure we have a .bss section. */
+ bss_sec = bfd_get_section_by_name (outbfd, NLM_UNINITIALIZED_DATA_NAME);
+ if (bss_sec == NULL)
+ {
+ bss_sec = bfd_make_section (outbfd, NLM_UNINITIALIZED_DATA_NAME);
+ if (bss_sec == NULL
+ || ! bfd_set_section_flags (outbfd, bss_sec, SEC_ALLOC)
+ || ! bfd_set_section_alignment (outbfd, bss_sec, 1))
+ bfd_fatal (_("make .bss section"));
+ }
+
+ /* We store the original section names in the .nlmsections section,
+ so that programs which understand it can resurrect the original
+ sections from the NLM. We will put a pointer to .nlmsections in
+ the NLM header area. */
+ secsec = bfd_make_section (outbfd, ".nlmsections");
+ if (secsec == NULL)
+ bfd_fatal (_("make .nlmsections section"));
+ if (! bfd_set_section_flags (outbfd, secsec, SEC_HAS_CONTENTS))
+ bfd_fatal (_("set .nlmsections flags"));
+
+#ifdef NLMCONV_POWERPC
+ /* For PowerPC NetWare we need to build stubs for calls to undefined
+ symbols. Because each stub requires an entry in the TOC section
+ which must be at the same location as other entries in the TOC
+ section, we must do this before determining where the TOC section
+ goes in setup_sections. */
+ if (bfd_get_arch (inbfd) == bfd_arch_powerpc)
+ powerpc_build_stubs (inbfd, outbfd, &symbols, &symcount);
+#endif
+
+ /* Set up the sections. */
+ bfd_map_over_sections (inbfd, setup_sections, (PTR) outbfd);
+
+ text_sec = bfd_get_section_by_name (outbfd, NLM_CODE_NAME);
+
+ /* The .bss section immediately follows the .data section. */
+ data_sec = bfd_get_section_by_name (outbfd, NLM_INITIALIZED_DATA_NAME);
+ if (data_sec != NULL)
+ {
+ bfd_size_type add;
+
+ vma = bfd_get_section_size_before_reloc (data_sec);
+ align = 1 << bss_sec->alignment_power;
+ add = ((vma + align - 1) &~ (align - 1)) - vma;
+ vma += add;
+ if (! bfd_set_section_vma (outbfd, bss_sec, vma))
+ bfd_fatal (_("set .bss vma"));
+ if (add != 0)
+ {
+ bfd_size_type data_size;
+
+ data_size = bfd_get_section_size_before_reloc (data_sec);
+ if (! bfd_set_section_size (outbfd, data_sec, data_size + add))
+ bfd_fatal (_("set .data size"));
+ }
+ }
+
+ /* Adjust symbol information. */
+ inlead = bfd_get_symbol_leading_char (inbfd);
+ outlead = bfd_get_symbol_leading_char (outbfd);
+ gotstart = false;
+ gotexit = false;
+ gotcheck = false;
+ newsymalloc = 10;
+ newsyms = (asymbol **) xmalloc (newsymalloc * sizeof (asymbol *));
+ newsymcount = 0;
+ endsym = NULL;
+ for (i = 0; i < symcount; i++)
+ {
+ register asymbol *sym;
+
+ sym = symbols[i];
+
+ /* Add or remove a leading underscore. */
+ if (inlead != outlead)
+ {
+ if (inlead != '\0')
+ {
+ if (bfd_asymbol_name (sym)[0] == inlead)
+ {
+ if (outlead == '\0')
+ ++sym->name;
+ else
+ {
+ char *new;
+
+ new = xmalloc (strlen (bfd_asymbol_name (sym)) + 1);
+ new[0] = outlead;
+ strcpy (new + 1, bfd_asymbol_name (sym) + 1);
+ sym->name = new;
+ }
+ }
+ }
+ else
+ {
+ char *new;
+
+ new = xmalloc (strlen (bfd_asymbol_name (sym)) + 2);
+ new[0] = outlead;
+ strcpy (new + 1, bfd_asymbol_name (sym));
+ sym->name = new;
+ }
+ }
+
+ /* NLM's have an uninitialized data section, but they do not
+ have a common section in the Unix sense. Move all common
+ symbols into the .bss section, and mark them as exported. */
+ if (bfd_is_com_section (bfd_get_section (sym)))
+ {
+ bfd_vma size;
+
+ sym->section = bss_sec;
+ size = sym->value;
+ sym->value = bss_sec->_raw_size;
+ bss_sec->_raw_size += size;
+ align = 1 << bss_sec->alignment_power;
+ bss_sec->_raw_size = (bss_sec->_raw_size + align - 1) &~ (align - 1);
+ sym->flags |= BSF_EXPORT | BSF_GLOBAL;
+ }
+ else if (bfd_get_section (sym)->output_section != NULL)
+ {
+ /* Move the symbol into the output section. */
+ sym->value += bfd_get_section (sym)->output_offset;
+ sym->section = bfd_get_section (sym)->output_section;
+ /* This is no longer a section symbol. */
+ sym->flags &=~ BSF_SECTION_SYM;
+ }
+
+ /* Force _edata and _end to be defined. This would normally be
+ done by the linker, but the manipulation of the common
+ symbols will confuse it. */
+ if ((sym->flags & BSF_DEBUGGING) == 0
+ && bfd_asymbol_name (sym)[0] == '_'
+ && bfd_is_und_section (bfd_get_section (sym)))
+ {
+ if (strcmp (bfd_asymbol_name (sym), "_edata") == 0)
+ {
+ sym->section = bss_sec;
+ sym->value = 0;
+ }
+ if (strcmp (bfd_asymbol_name (sym), "_end") == 0)
+ {
+ sym->section = bss_sec;
+ endsym = sym;
+ }
+
+#ifdef NLMCONV_POWERPC
+ /* For PowerPC NetWare, we define __GOT0. This is the start
+ of the .got section. */
+ if (bfd_get_arch (inbfd) == bfd_arch_powerpc
+ && strcmp (bfd_asymbol_name (sym), "__GOT0") == 0)
+ {
+ asection *got_sec;
+
+ got_sec = bfd_get_section_by_name (inbfd, ".got");
+ assert (got_sec != (asection *) NULL);
+ sym->value = got_sec->output_offset;
+ sym->section = got_sec->output_section;
+ }
+#endif
+ }
+
+ /* If this is a global symbol, check the export list. */
+ if ((sym->flags & (BSF_EXPORT | BSF_GLOBAL)) != 0)
+ {
+ register struct string_list *l;
+ int found_simple;
+
+ /* Unfortunately, a symbol can appear multiple times on the
+ export list, with and without prefixes. */
+ found_simple = 0;
+ for (l = export_symbols; l != NULL; l = l->next)
+ {
+ if (strcmp (l->string, bfd_asymbol_name (sym)) == 0)
+ found_simple = 1;
+ else
+ {
+ char *zbase;
+
+ zbase = strchr (l->string, '@');
+ if (zbase != NULL
+ && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0)
+ {
+ /* We must add a symbol with this prefix. */
+ if (newsymcount >= newsymalloc)
+ {
+ newsymalloc += 10;
+ newsyms = ((asymbol **)
+ xrealloc ((PTR) newsyms,
+ (newsymalloc
+ * sizeof (asymbol *))));
+ }
+ newsyms[newsymcount] =
+ (asymbol *) xmalloc (sizeof (asymbol));
+ *newsyms[newsymcount] = *sym;
+ newsyms[newsymcount]->name = l->string;
+ ++newsymcount;
+ }
+ }
+ }
+ if (! found_simple)
+ {
+ /* The unmodified symbol is actually not exported at
+ all. */
+ sym->flags &=~ (BSF_GLOBAL | BSF_EXPORT);
+ sym->flags |= BSF_LOCAL;
+ }
+ }
+
+ /* If it's an undefined symbol, see if it's on the import list.
+ Change the prefix if necessary. */
+ if (bfd_is_und_section (bfd_get_section (sym)))
+ {
+ register struct string_list *l;
+
+ for (l = import_symbols; l != NULL; l = l->next)
+ {
+ if (strcmp (l->string, bfd_asymbol_name (sym)) == 0)
+ break;
+ else
+ {
+ char *zbase;
+
+ zbase = strchr (l->string, '@');
+ if (zbase != NULL
+ && strcmp (zbase + 1, bfd_asymbol_name (sym)) == 0)
+ {
+ sym->name = l->string;
+ break;
+ }
+ }
+ }
+ if (l == NULL)
+ fprintf (stderr,
+ _("%s: warning: symbol %s imported but not in import list\n"),
+ program_name, bfd_asymbol_name (sym));
+ }
+
+ /* See if it's one of the special named symbols. */
+ if ((sym->flags & BSF_DEBUGGING) == 0)
+ {
+ bfd_vma val;
+
+ /* FIXME: If these symbols are not in the .text section, we
+ add the .text section size to the value. This may not be
+ correct for all targets. I'm not sure how this should
+ really be handled. */
+ if (strcmp (bfd_asymbol_name (sym), start_procedure) == 0)
+ {
+ val = bfd_asymbol_value (sym);
+ if (bfd_get_section (sym) == data_sec
+ && text_sec != (asection *) NULL)
+ val += bfd_section_size (outbfd, text_sec);
+ if (! bfd_set_start_address (outbfd, val))
+ bfd_fatal (_("set start address"));
+ gotstart = true;
+ }
+ if (strcmp (bfd_asymbol_name (sym), exit_procedure) == 0)
+ {
+ val = bfd_asymbol_value (sym);
+ if (bfd_get_section (sym) == data_sec
+ && text_sec != (asection *) NULL)
+ val += bfd_section_size (outbfd, text_sec);
+ nlm_fixed_header (outbfd)->exitProcedureOffset = val;
+ gotexit = true;
+ }
+ if (check_procedure != NULL
+ && strcmp (bfd_asymbol_name (sym), check_procedure) == 0)
+ {
+ val = bfd_asymbol_value (sym);
+ if (bfd_get_section (sym) == data_sec
+ && text_sec != (asection *) NULL)
+ val += bfd_section_size (outbfd, text_sec);
+ nlm_fixed_header (outbfd)->checkUnloadProcedureOffset = val;
+ gotcheck = true;
+ }
+ }
+ }
+
+ if (endsym != NULL)
+ {
+ endsym->value = bfd_get_section_size_before_reloc (bss_sec);
+
+ /* FIXME: If any relocs referring to _end use inplace addends,
+ then I think they need to be updated. This is handled by
+ i386_mangle_relocs. Is it needed for any other object
+ formats? */
+ }
+
+ if (newsymcount == 0)
+ outsyms = symbols;
+ else
+ {
+ outsyms = (asymbol **) xmalloc ((symcount + newsymcount + 1)
+ * sizeof (asymbol *));
+ memcpy (outsyms, symbols, symcount * sizeof (asymbol *));
+ memcpy (outsyms + symcount, newsyms, newsymcount * sizeof (asymbol *));
+ outsyms[symcount + newsymcount] = NULL;
+ }
+
+ bfd_set_symtab (outbfd, outsyms, symcount + newsymcount);
+
+ if (! gotstart)
+ fprintf (stderr, _("%s: warning: START procedure %s not defined\n"),
+ program_name, start_procedure);
+ if (! gotexit)
+ fprintf (stderr, _("%s: warning: EXIT procedure %s not defined\n"),
+ program_name, exit_procedure);
+ if (check_procedure != NULL
+ && ! gotcheck)
+ fprintf (stderr, _("%s: warning: CHECK procedure %s not defined\n"),
+ program_name, check_procedure);
+
+ /* Add additional sections required for the header information. */
+ if (custom_file != NULL)
+ {
+ custom_data = fopen (custom_file, "r");
+ if (custom_data == NULL
+ || fstat (fileno (custom_data), &st) < 0)
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, custom_file,
+ strerror (errno));
+ custom_file = NULL;
+ }
+ else
+ {
+ custom_size = st.st_size;
+ custom_section = bfd_make_section (outbfd, ".nlmcustom");
+ if (custom_section == NULL
+ || ! bfd_set_section_size (outbfd, custom_section, custom_size)
+ || ! bfd_set_section_flags (outbfd, custom_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("custom section"));
+ }
+ }
+ if (help_file != NULL)
+ {
+ help_data = fopen (help_file, "r");
+ if (help_data == NULL
+ || fstat (fileno (help_data), &st) < 0)
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, help_file,
+ strerror (errno));
+ help_file = NULL;
+ }
+ else
+ {
+ help_size = st.st_size;
+ help_section = bfd_make_section (outbfd, ".nlmhelp");
+ if (help_section == NULL
+ || ! bfd_set_section_size (outbfd, help_section, help_size)
+ || ! bfd_set_section_flags (outbfd, help_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("help section"));
+ strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
+ }
+ }
+ if (message_file != NULL)
+ {
+ message_data = fopen (message_file, "r");
+ if (message_data == NULL
+ || fstat (fileno (message_data), &st) < 0)
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, message_file,
+ strerror (errno));
+ message_file = NULL;
+ }
+ else
+ {
+ message_size = st.st_size;
+ message_section = bfd_make_section (outbfd, ".nlmmessages");
+ if (message_section == NULL
+ || ! bfd_set_section_size (outbfd, message_section, message_size)
+ || ! bfd_set_section_flags (outbfd, message_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("message section"));
+ strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
+ }
+ }
+ if (modules != NULL)
+ {
+ struct string_list *l;
+
+ module_size = 0;
+ for (l = modules; l != NULL; l = l->next)
+ module_size += strlen (l->string) + 1;
+ module_section = bfd_make_section (outbfd, ".nlmmodules");
+ if (module_section == NULL
+ || ! bfd_set_section_size (outbfd, module_section, module_size)
+ || ! bfd_set_section_flags (outbfd, module_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("module section"));
+ }
+ if (rpc_file != NULL)
+ {
+ rpc_data = fopen (rpc_file, "r");
+ if (rpc_data == NULL
+ || fstat (fileno (rpc_data), &st) < 0)
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, rpc_file,
+ strerror (errno));
+ rpc_file = NULL;
+ }
+ else
+ {
+ rpc_size = st.st_size;
+ rpc_section = bfd_make_section (outbfd, ".nlmrpc");
+ if (rpc_section == NULL
+ || ! bfd_set_section_size (outbfd, rpc_section, rpc_size)
+ || ! bfd_set_section_flags (outbfd, rpc_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("rpc section"));
+ strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
+ }
+ }
+ if (sharelib_file != NULL)
+ {
+ sharedbfd = bfd_openr (sharelib_file, output_format);
+ if (sharedbfd == NULL
+ || ! bfd_check_format (sharedbfd, bfd_object))
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file,
+ bfd_errmsg (bfd_get_error ()));
+ sharelib_file = NULL;
+ }
+ else
+ {
+ sharedhdr = *nlm_fixed_header (sharedbfd);
+ bfd_close (sharedbfd);
+ shared_data = fopen (sharelib_file, "r");
+ if (shared_data == NULL
+ || (fstat (fileno (shared_data), &st) < 0))
+ {
+ fprintf (stderr, "%s:%s: %s\n", program_name, sharelib_file,
+ strerror (errno));
+ sharelib_file = NULL;
+ }
+ else
+ {
+ /* If we were clever, we could just copy out the
+ sections of the shared library which we actually
+ need. However, we would have to figure out the sizes
+ of the external and public information, and that can
+ not be done without reading through them. */
+ if (sharedhdr.uninitializedDataSize > 0)
+ {
+ /* There is no place to record this information. */
+ fprintf (stderr,
+ _("%s:%s: warning: shared libraries can not have uninitialized data\n"),
+ program_name, sharelib_file);
+ }
+ shared_offset = st.st_size;
+ if (shared_offset > (size_t) sharedhdr.codeImageOffset)
+ shared_offset = sharedhdr.codeImageOffset;
+ if (shared_offset > (size_t) sharedhdr.dataImageOffset)
+ shared_offset = sharedhdr.dataImageOffset;
+ if (shared_offset > (size_t) sharedhdr.relocationFixupOffset)
+ shared_offset = sharedhdr.relocationFixupOffset;
+ if (shared_offset > (size_t) sharedhdr.externalReferencesOffset)
+ shared_offset = sharedhdr.externalReferencesOffset;
+ if (shared_offset > (size_t) sharedhdr.publicsOffset)
+ shared_offset = sharedhdr.publicsOffset;
+ shared_size = st.st_size - shared_offset;
+ shared_section = bfd_make_section (outbfd, ".nlmshared");
+ if (shared_section == NULL
+ || ! bfd_set_section_size (outbfd, shared_section,
+ shared_size)
+ || ! bfd_set_section_flags (outbfd, shared_section,
+ SEC_HAS_CONTENTS))
+ bfd_fatal (_("shared section"));
+ strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
+ }
+ }
+ }
+
+ /* Check whether a version was given. */
+ if (strncmp (version_hdr->stamp, "VeRsIoN#", 8) != 0)
+ fprintf (stderr, _("%s: warning: No version number given\n"),
+ program_name);
+
+ /* At least for now, always create an extended header, because that
+ is what NLMLINK does. */
+ strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
+
+ strncpy (nlm_cygnus_ext_header (outbfd)->stamp, "CyGnUsEx", 8);
+
+ /* If the date was not given, force it in. */
+ if (nlm_version_header (outbfd)->month == 0
+ && nlm_version_header (outbfd)->day == 0
+ && nlm_version_header (outbfd)->year == 0)
+ {
+ time_t now;
+ struct tm *ptm;
+
+ time (&now);
+ ptm = localtime (&now);
+ nlm_version_header (outbfd)->month = ptm->tm_mon + 1;
+ nlm_version_header (outbfd)->day = ptm->tm_mday;
+ nlm_version_header (outbfd)->year = ptm->tm_year + 1900;
+ strncpy (version_hdr->stamp, "VeRsIoN#", 8);
+ }
+
+#ifdef NLMCONV_POWERPC
+ /* Resolve the stubs we build for PowerPC NetWare. */
+ if (bfd_get_arch (inbfd) == bfd_arch_powerpc)
+ powerpc_resolve_stubs (inbfd, outbfd);
+#endif
+
+ /* Copy over the sections. */
+ bfd_map_over_sections (inbfd, copy_sections, (PTR) outbfd);
+
+ /* Finish up the header information. */
+ if (custom_file != NULL)
+ {
+ PTR data;
+
+ data = xmalloc (custom_size);
+ if (fread (data, 1, custom_size, custom_data) != custom_size)
+ fprintf (stderr, _("%s:%s: read: %s\n"), program_name, custom_file,
+ strerror (errno));
+ else
+ {
+ if (! bfd_set_section_contents (outbfd, custom_section, data,
+ (file_ptr) 0, custom_size))
+ bfd_fatal (_("custom section"));
+ nlm_fixed_header (outbfd)->customDataOffset =
+ custom_section->filepos;
+ nlm_fixed_header (outbfd)->customDataSize = custom_size;
+ }
+ free (data);
+ }
+ if (! debug_info)
+ {
+ /* As a special hack, the backend recognizes a debugInfoOffset
+ of -1 to mean that it should not output any debugging
+ information. This can not be handling by fiddling with the
+ symbol table because exported symbols appear in both the
+ export information and the debugging information. */
+ nlm_fixed_header (outbfd)->debugInfoOffset = (file_ptr) -1;
+ }
+ if (map_file != NULL)
+ fprintf (stderr,
+ _("%s: warning: MAP and FULLMAP are not supported; try ld -M\n"),
+ program_name);
+ if (help_file != NULL)
+ {
+ PTR data;
+
+ data = xmalloc (help_size);
+ if (fread (data, 1, help_size, help_data) != help_size)
+ fprintf (stderr, _("%s:%s: read: %s\n"), program_name, help_file,
+ strerror (errno));
+ else
+ {
+ if (! bfd_set_section_contents (outbfd, help_section, data,
+ (file_ptr) 0, help_size))
+ bfd_fatal (_("help section"));
+ nlm_extended_header (outbfd)->helpFileOffset =
+ help_section->filepos;
+ nlm_extended_header (outbfd)->helpFileLength = help_size;
+ }
+ free (data);
+ }
+ if (message_file != NULL)
+ {
+ PTR data;
+
+ data = xmalloc (message_size);
+ if (fread (data, 1, message_size, message_data) != message_size)
+ fprintf (stderr, _("%s:%s: read: %s\n"), program_name, message_file,
+ strerror (errno));
+ else
+ {
+ if (! bfd_set_section_contents (outbfd, message_section, data,
+ (file_ptr) 0, message_size))
+ bfd_fatal (_("message section"));
+ nlm_extended_header (outbfd)->messageFileOffset =
+ message_section->filepos;
+ nlm_extended_header (outbfd)->messageFileLength = message_size;
+
+ /* FIXME: Are these offsets correct on all platforms? Are
+ they 32 bits on all platforms? What endianness? */
+ nlm_extended_header (outbfd)->languageID =
+ bfd_h_get_32 (outbfd, (bfd_byte *) data + 106);
+ nlm_extended_header (outbfd)->messageCount =
+ bfd_h_get_32 (outbfd, (bfd_byte *) data + 110);
+ }
+ free (data);
+ }
+ if (modules != NULL)
+ {
+ PTR data;
+ unsigned char *set;
+ struct string_list *l;
+ bfd_size_type c;
+
+ data = xmalloc (module_size);
+ c = 0;
+ set = (unsigned char *) data;
+ for (l = modules; l != NULL; l = l->next)
+ {
+ *set = strlen (l->string);
+ strncpy (set + 1, l->string, *set);
+ set += *set + 1;
+ ++c;
+ }
+ if (! bfd_set_section_contents (outbfd, module_section, data,
+ (file_ptr) 0, module_size))
+ bfd_fatal (_("module section"));
+ nlm_fixed_header (outbfd)->moduleDependencyOffset =
+ module_section->filepos;
+ nlm_fixed_header (outbfd)->numberOfModuleDependencies = c;
+ }
+ if (rpc_file != NULL)
+ {
+ PTR data;
+
+ data = xmalloc (rpc_size);
+ if (fread (data, 1, rpc_size, rpc_data) != rpc_size)
+ fprintf (stderr, _("%s:%s: read: %s\n"), program_name, rpc_file,
+ strerror (errno));
+ else
+ {
+ if (! bfd_set_section_contents (outbfd, rpc_section, data,
+ (file_ptr) 0, rpc_size))
+ bfd_fatal (_("rpc section"));
+ nlm_extended_header (outbfd)->RPCDataOffset =
+ rpc_section->filepos;
+ nlm_extended_header (outbfd)->RPCDataLength = rpc_size;
+ }
+ free (data);
+ }
+ if (sharelib_file != NULL)
+ {
+ PTR data;
+
+ data = xmalloc (shared_size);
+ if (fseek (shared_data, shared_offset, SEEK_SET) != 0
+ || fread (data, 1, shared_size, shared_data) != shared_size)
+ fprintf (stderr, _("%s:%s: read: %s\n"), program_name, sharelib_file,
+ strerror (errno));
+ else
+ {
+ if (! bfd_set_section_contents (outbfd, shared_section, data,
+ (file_ptr) 0, shared_size))
+ bfd_fatal (_("shared section"));
+ }
+ nlm_extended_header (outbfd)->sharedCodeOffset =
+ sharedhdr.codeImageOffset - shared_offset + shared_section->filepos;
+ nlm_extended_header (outbfd)->sharedCodeLength =
+ sharedhdr.codeImageSize;
+ nlm_extended_header (outbfd)->sharedDataOffset =
+ sharedhdr.dataImageOffset - shared_offset + shared_section->filepos;
+ nlm_extended_header (outbfd)->sharedDataLength =
+ sharedhdr.dataImageSize;
+ nlm_extended_header (outbfd)->sharedRelocationFixupOffset =
+ (sharedhdr.relocationFixupOffset
+ - shared_offset
+ + shared_section->filepos);
+ nlm_extended_header (outbfd)->sharedRelocationFixupCount =
+ sharedhdr.numberOfRelocationFixups;
+ nlm_extended_header (outbfd)->sharedExternalReferenceOffset =
+ (sharedhdr.externalReferencesOffset
+ - shared_offset
+ + shared_section->filepos);
+ nlm_extended_header (outbfd)->sharedExternalReferenceCount =
+ sharedhdr.numberOfExternalReferences;
+ nlm_extended_header (outbfd)->sharedPublicsOffset =
+ sharedhdr.publicsOffset - shared_offset + shared_section->filepos;
+ nlm_extended_header (outbfd)->sharedPublicsCount =
+ sharedhdr.numberOfPublics;
+ nlm_extended_header (outbfd)->sharedDebugRecordOffset =
+ sharedhdr.debugInfoOffset - shared_offset + shared_section->filepos;
+ nlm_extended_header (outbfd)->sharedDebugRecordCount =
+ sharedhdr.numberOfDebugRecords;
+ nlm_extended_header (outbfd)->SharedInitializationOffset =
+ sharedhdr.codeStartOffset;
+ nlm_extended_header (outbfd)->SharedExitProcedureOffset =
+ sharedhdr.exitProcedureOffset;
+ free (data);
+ }
+ len = strlen (output_file);
+ if (len > NLM_MODULE_NAME_SIZE - 2)
+ len = NLM_MODULE_NAME_SIZE - 2;
+ nlm_fixed_header (outbfd)->moduleName[0] = len;
+
+ strncpy (nlm_fixed_header (outbfd)->moduleName + 1, output_file,
+ NLM_MODULE_NAME_SIZE - 2);
+ nlm_fixed_header (outbfd)->moduleName[NLM_MODULE_NAME_SIZE - 1] = '\0';
+ for (modname = nlm_fixed_header (outbfd)->moduleName;
+ *modname != '\0';
+ modname++)
+ if (islower ((unsigned char) *modname))
+ *modname = toupper (*modname);
+
+ strncpy (nlm_variable_header (outbfd)->oldThreadName, " LONG",
+ NLM_OLD_THREAD_NAME_LENGTH);
+
+ nlm_cygnus_ext_header (outbfd)->offset = secsec->filepos;
+ nlm_cygnus_ext_header (outbfd)->length = bfd_section_size (outbfd, secsec);
+
+ if (! bfd_close (outbfd))
+ bfd_fatal (output_file);
+ if (! bfd_close (inbfd))
+ bfd_fatal (input_file);
+
+ if (unlink_on_exit != NULL)
+ unlink (unlink_on_exit);
+
+ return 0;
+}
+
+/* Display a help message and exit. */
+
+static void
+show_help ()
+{
+ printf (_("%s: Convert an object file into a NetWare Loadable Module\n"),
+ program_name);
+ show_usage (stdout, 0);
+}
+
+/* Show a usage message and exit. */
+
+static void
+show_usage (file, status)
+ FILE *file;
+ int status;
+{
+ fprintf (file, _("\
+Usage: %s [-dhV] [-I bfdname] [-O bfdname] [-T header-file] [-l linker]\n\
+ [--input-target=bfdname] [--output-target=bfdname]\n\
+ [--header-file=file] [--linker=linker] [--debug]\n\
+ [--help] [--version]\n\
+ [in-file [out-file]]\n"),
+ program_name);
+ if (status == 0)
+ fprintf (file, _("Report bugs to bug-gnu-utils@gnu.org\n"));
+ exit (status);
+}
+
+/* Select the output format based on the input architecture, machine,
+ and endianness. This chooses the appropriate NLM target. */
+
+static const char *
+select_output_format (arch, mach, bigendian)
+ enum bfd_architecture arch;
+ unsigned long mach;
+ boolean bigendian;
+{
+ switch (arch)
+ {
+#ifdef NLMCONV_I386
+ case bfd_arch_i386:
+ return "nlm32-i386";
+#endif
+#ifdef NLMCONV_SPARC
+ case bfd_arch_sparc:
+ return "nlm32-sparc";
+#endif
+#ifdef NLMCONV_ALPHA
+ case bfd_arch_alpha:
+ return "nlm32-alpha";
+#endif
+#ifdef NLMCONV_POWERPC
+ case bfd_arch_powerpc:
+ return "nlm32-powerpc";
+#endif
+ default:
+ fprintf (stderr, _("%s: support not compiled in for %s\n"),
+ program_name, bfd_printable_arch_mach (arch, mach));
+ exit (1);
+ /* Avoid warning. */
+ return NULL;
+ }
+ /*NOTREACHED*/
+}
+
+/* The BFD sections are copied in two passes. This function selects
+ the output section for each input section, and sets up the section
+ name, size, etc. */
+
+static void
+setup_sections (inbfd, insec, data_ptr)
+ bfd *inbfd;
+ asection *insec;
+ PTR data_ptr;
+{
+ bfd *outbfd = (bfd *) data_ptr;
+ flagword f;
+ const char *outname;
+ asection *outsec;
+ bfd_vma offset;
+ bfd_size_type align;
+ bfd_size_type add;
+ bfd_size_type secsecsize;
+
+ f = bfd_get_section_flags (inbfd, insec);
+ if (f & SEC_CODE)
+ outname = NLM_CODE_NAME;
+ else if ((f & SEC_LOAD) && (f & SEC_HAS_CONTENTS))
+ outname = NLM_INITIALIZED_DATA_NAME;
+ else if (f & SEC_ALLOC)
+ outname = NLM_UNINITIALIZED_DATA_NAME;
+ else
+ outname = bfd_section_name (inbfd, insec);
+
+ outsec = bfd_get_section_by_name (outbfd, outname);
+ if (outsec == NULL)
+ {
+ outsec = bfd_make_section (outbfd, outname);
+ if (outsec == NULL)
+ bfd_fatal (_("make section"));
+ }
+
+ insec->output_section = outsec;
+
+ offset = bfd_section_size (outbfd, outsec);
+ align = 1 << bfd_section_alignment (inbfd, insec);
+ add = ((offset + align - 1) &~ (align - 1)) - offset;
+ insec->output_offset = offset + add;
+
+ if (! bfd_set_section_size (outbfd, outsec,
+ (bfd_section_size (outbfd, outsec)
+ + bfd_section_size (inbfd, insec)
+ + add)))
+ bfd_fatal (_("set section size"));
+
+ if ((bfd_section_alignment (inbfd, insec)
+ > bfd_section_alignment (outbfd, outsec))
+ && ! bfd_set_section_alignment (outbfd, outsec,
+ bfd_section_alignment (inbfd, insec)))
+ bfd_fatal (_("set section alignment"));
+
+ if (! bfd_set_section_flags (outbfd, outsec,
+ f | bfd_get_section_flags (outbfd, outsec)))
+ bfd_fatal (_("set section flags"));
+
+ bfd_set_reloc (outbfd, outsec, (arelent **) NULL, 0);
+
+ /* For each input section we allocate space for an entry in
+ .nlmsections. */
+ secsecsize = bfd_section_size (outbfd, secsec);
+ secsecsize += strlen (bfd_section_name (inbfd, insec)) + 1;
+ secsecsize = (secsecsize + 3) &~ 3;
+ secsecsize += 8;
+ if (! bfd_set_section_size (outbfd, secsec, secsecsize))
+ bfd_fatal (_("set .nlmsections size"));
+}
+
+/* Copy the section contents. */
+
+static void
+copy_sections (inbfd, insec, data_ptr)
+ bfd *inbfd;
+ asection *insec;
+ PTR data_ptr;
+{
+ static bfd_size_type secsecoff = 0;
+ bfd *outbfd = (bfd *) data_ptr;
+ const char *inname;
+ asection *outsec;
+ bfd_size_type size;
+ PTR contents;
+ long reloc_size;
+ bfd_byte buf[4];
+ bfd_size_type add;
+
+ inname = bfd_section_name (inbfd, insec);
+
+ outsec = insec->output_section;
+ assert (outsec != NULL);
+
+ size = bfd_get_section_size_before_reloc (insec);
+
+ /* FIXME: Why are these necessary? */
+ insec->_cooked_size = insec->_raw_size;
+ insec->reloc_done = true;
+
+ if ((bfd_get_section_flags (inbfd, insec) & SEC_HAS_CONTENTS) == 0)
+ contents = NULL;
+ else
+ {
+ contents = xmalloc (size);
+ if (! bfd_get_section_contents (inbfd, insec, contents,
+ (file_ptr) 0, size))
+ bfd_fatal (bfd_get_filename (inbfd));
+ }
+
+ reloc_size = bfd_get_reloc_upper_bound (inbfd, insec);
+ if (reloc_size < 0)
+ bfd_fatal (bfd_get_filename (inbfd));
+ if (reloc_size != 0)
+ {
+ arelent **relocs;
+ long reloc_count;
+
+ relocs = (arelent **) xmalloc (reloc_size);
+ reloc_count = bfd_canonicalize_reloc (inbfd, insec, relocs, symbols);
+ if (reloc_count < 0)
+ bfd_fatal (bfd_get_filename (inbfd));
+ mangle_relocs (outbfd, insec, &relocs, &reloc_count, (char *) contents,
+ size);
+
+ /* FIXME: refers to internal BFD fields. */
+ if (outsec->orelocation != (arelent **) NULL)
+ {
+ bfd_size_type total_count;
+ arelent **combined;
+
+ total_count = reloc_count + outsec->reloc_count;
+ combined = (arelent **) xmalloc (total_count * sizeof (arelent *));
+ memcpy (combined, outsec->orelocation,
+ outsec->reloc_count * sizeof (arelent *));
+ memcpy (combined + outsec->reloc_count, relocs,
+ (size_t) (reloc_count * sizeof (arelent *)));
+ free (outsec->orelocation);
+ reloc_count = total_count;
+ relocs = combined;
+ }
+
+ bfd_set_reloc (outbfd, outsec, relocs, reloc_count);
+ }
+
+ if (contents != NULL)
+ {
+ if (! bfd_set_section_contents (outbfd, outsec, contents,
+ insec->output_offset, size))
+ bfd_fatal (bfd_get_filename (outbfd));
+ free (contents);
+ }
+
+ /* Add this section to .nlmsections. */
+ if (! bfd_set_section_contents (outbfd, secsec, (PTR) inname, secsecoff,
+ strlen (inname) + 1))
+ bfd_fatal (_("set .nlmsection contents"));
+ secsecoff += strlen (inname) + 1;
+
+ add = ((secsecoff + 3) &~ 3) - secsecoff;
+ if (add != 0)
+ {
+ bfd_h_put_32 (outbfd, (bfd_vma) 0, buf);
+ if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, add))
+ bfd_fatal (_("set .nlmsection contents"));
+ secsecoff += add;
+ }
+
+ if (contents != NULL)
+ bfd_h_put_32 (outbfd, (bfd_vma) outsec->filepos, buf);
+ else
+ bfd_h_put_32 (outbfd, (bfd_vma) 0, buf);
+ if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4))
+ bfd_fatal (_("set .nlmsection contents"));
+ secsecoff += 4;
+
+ bfd_h_put_32 (outbfd, (bfd_vma) size, buf);
+ if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4))
+ bfd_fatal (_("set .nlmsection contents"));
+ secsecoff += 4;
+}
+
+/* Some, perhaps all, NetWare targets require changing the relocs used
+ by the input formats. */
+
+static void
+mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents,
+ contents_size)
+ bfd *outbfd;
+ asection *insec;
+ arelent ***relocs_ptr;
+ long *reloc_count_ptr;
+ char *contents;
+ bfd_size_type contents_size;
+{
+ switch (bfd_get_arch (outbfd))
+ {
+#ifdef NLMCONV_I386
+ case bfd_arch_i386:
+ i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr,
+ contents, contents_size);
+ break;
+#endif
+#ifdef NLMCONV_ALPHA
+ case bfd_arch_alpha:
+ alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr,
+ contents, contents_size);
+ break;
+#endif
+#ifdef NLMCONV_POWERPC
+ case bfd_arch_powerpc:
+ powerpc_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr,
+ contents, contents_size);
+ break;
+#endif
+ default:
+ default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr,
+ contents, contents_size);
+ break;
+ }
+}
+
+/* By default all we need to do for relocs is change the address by
+ the output_offset. */
+
+/*ARGSUSED*/
+static void
+default_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents,
+ contents_size)
+ bfd *outbfd;
+ asection *insec;
+ arelent ***relocs_ptr;
+ long *reloc_count_ptr;
+ char *contents;
+ bfd_size_type contents_size;
+{
+ if (insec->output_offset != 0)
+ {
+ long reloc_count;
+ register arelent **relocs;
+ register long i;
+
+ reloc_count = *reloc_count_ptr;
+ relocs = *relocs_ptr;
+ for (i = 0; i < reloc_count; i++, relocs++)
+ (*relocs)->address += insec->output_offset;
+ }
+}
+
+#ifdef NLMCONV_I386
+
+/* NetWare on the i386 supports a restricted set of relocs, which are
+ different from those used on other i386 targets. This routine
+ converts the relocs. It is, obviously, very target dependent. At
+ the moment, the nlm32-i386 backend performs similar translations;
+ however, it is more reliable and efficient to do them here. */
+
+static reloc_howto_type nlm_i386_pcrel_howto =
+ HOWTO (1, /* type */
+ 0, /* rightshift */
+ 2, /* size (0 = byte, 1 = short, 2 = long) */
+ 32, /* bitsize */
+ true, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_signed, /* complain_on_overflow */
+ 0, /* special_function */
+ "DISP32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* src_mask */
+ 0xffffffff, /* dst_mask */
+ true); /* pcrel_offset */
+
+static void
+i386_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents,
+ contents_size)
+ bfd *outbfd;
+ asection *insec;
+ arelent ***relocs_ptr;
+ long *reloc_count_ptr;
+ char *contents;
+ bfd_size_type contents_size;
+{
+ long reloc_count, i;
+ arelent **relocs;
+
+ reloc_count = *reloc_count_ptr;
+ relocs = *relocs_ptr;
+ for (i = 0; i < reloc_count; i++)
+ {
+ arelent *rel;
+ asymbol *sym;
+ bfd_size_type address;
+ bfd_vma addend;
+
+ rel = *relocs++;
+ sym = *rel->sym_ptr_ptr;
+
+ /* We're moving the relocs from the input section to the output
+ section, so we must adjust the address accordingly. */
+ address = rel->address;
+ rel->address += insec->output_offset;
+
+ /* Note that no serious harm will ensue if we fail to change a
+ reloc. The backend will fail when writing out the reloc. */
+
+ /* Make sure this reloc is within the data we have. We use only
+ 4 byte relocs here, so we insist on having 4 bytes. */
+ if (address + 4 > contents_size)
+ continue;
+
+ /* A PC relative reloc entirely within a single section is
+ completely unnecessary. This can be generated by ld -r. */
+ if (sym == insec->symbol
+ && rel->howto != NULL
+ && rel->howto->pc_relative
+ && ! rel->howto->pcrel_offset)
+ {
+ --*reloc_count_ptr;
+ --relocs;
+ memmove (relocs, relocs + 1,
+ (size_t) ((reloc_count - i) * sizeof (arelent *)));
+ continue;
+ }
+
+ /* Get the amount the relocation will add in. */
+ addend = rel->addend + sym->value;
+
+ /* NetWare doesn't support PC relative relocs against defined
+ symbols, so we have to eliminate them by doing the relocation
+ now. We can only do this if the reloc is within a single
+ section. */
+ if (rel->howto != NULL
+ && rel->howto->pc_relative
+ && bfd_get_section (sym) == insec->output_section)
+ {
+ bfd_vma val;
+
+ if (rel->howto->pcrel_offset)
+ addend -= address;
+
+ val = bfd_get_32 (outbfd, (bfd_byte *) contents + address);
+ val += addend;
+ bfd_put_32 (outbfd, val, (bfd_byte *) contents + address);
+
+ --*reloc_count_ptr;
+ --relocs;
+ memmove (relocs, relocs + 1,
+ (size_t) ((reloc_count - i) * sizeof (arelent *)));
+ continue;
+ }
+
+ /* NetWare doesn't support reloc addends, so we get rid of them
+ here by simply adding them into the object data. We handle
+ the symbol value, if any, the same way. */
+ if (addend != 0
+ && rel->howto != NULL
+ && rel->howto->rightshift == 0
+ && rel->howto->size == 2
+ && rel->howto->bitsize == 32
+ && rel->howto->bitpos == 0
+ && rel->howto->src_mask == 0xffffffff
+ && rel->howto->dst_mask == 0xffffffff)
+ {
+ bfd_vma val;
+
+ val = bfd_get_32 (outbfd, (bfd_byte *) contents + address);
+ val += addend;
+ bfd_put_32 (outbfd, val, (bfd_byte *) contents + address);
+
+ /* Adjust the reloc for the changes we just made. */
+ rel->addend = 0;
+ if (! bfd_is_und_section (bfd_get_section (sym)))
+ rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr;
+ }
+
+ /* NetWare uses a reloc with pcrel_offset set. We adjust
+ pc_relative relocs accordingly. We are going to change the
+ howto field, so we can only do this if the current one is
+ compatible. We should check that special_function is NULL
+ here, but at the moment coff-i386 uses a special_function
+ which does not affect what we are doing here. */
+ if (rel->howto != NULL
+ && rel->howto->pc_relative
+ && ! rel->howto->pcrel_offset
+ && rel->howto->rightshift == 0
+ && rel->howto->size == 2
+ && rel->howto->bitsize == 32
+ && rel->howto->bitpos == 0
+ && rel->howto->src_mask == 0xffffffff
+ && rel->howto->dst_mask == 0xffffffff)
+ {
+ bfd_vma val;
+
+ /* When pcrel_offset is not set, it means that the negative
+ of the address of the memory location is stored in the
+ memory location. We must add it back in. */
+ val = bfd_get_32 (outbfd, (bfd_byte *) contents + address);
+ val += address;
+ bfd_put_32 (outbfd, val, (bfd_byte *) contents + address);
+
+ /* We must change to a new howto. */
+ rel->howto = &nlm_i386_pcrel_howto;
+ }
+ }
+}
+
+#endif /* NLMCONV_I386 */
+
+#ifdef NLMCONV_ALPHA
+
+/* On the Alpha the first reloc for every section must be a special
+ relocs which hold the GP address. Also, the first reloc in the
+ file must be a special reloc which holds the address of the .lita
+ section. */
+
+static reloc_howto_type nlm32_alpha_nw_howto =
+ HOWTO (ALPHA_R_NW_RELOC, /* type */
+ 0, /* rightshift */
+ 0, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ 0, /* special_function */
+ "NW_RELOC", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false); /* pcrel_offset */
+
+/*ARGSUSED*/
+static void
+alpha_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents,
+ contents_size)
+ bfd *outbfd;
+ asection *insec;
+ register arelent ***relocs_ptr;
+ long *reloc_count_ptr;
+ char *contents;
+ bfd_size_type contents_size;
+{
+ long old_reloc_count;
+ arelent **old_relocs;
+ register arelent **relocs;
+
+ old_reloc_count = *reloc_count_ptr;
+ old_relocs = *relocs_ptr;
+ relocs = (arelent **) xmalloc ((old_reloc_count + 3) * sizeof (arelent *));
+ *relocs_ptr = relocs;
+
+ if (nlm_alpha_backend_data (outbfd)->lita_address == 0)
+ {
+ bfd *inbfd;
+ asection *lita_section;
+
+ inbfd = insec->owner;
+ lita_section = bfd_get_section_by_name (inbfd, _LITA);
+ if (lita_section != (asection *) NULL)
+ {
+ nlm_alpha_backend_data (outbfd)->lita_address =
+ bfd_get_section_vma (inbfd, lita_section);
+ nlm_alpha_backend_data (outbfd)->lita_size =
+ bfd_section_size (inbfd, lita_section);
+ }
+ else
+ {
+ /* Avoid outputting this reloc again. */
+ nlm_alpha_backend_data (outbfd)->lita_address = 4;
+ }
+
+ *relocs = (arelent *) xmalloc (sizeof (arelent));
+ (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+ (*relocs)->address = nlm_alpha_backend_data (outbfd)->lita_address;
+ (*relocs)->addend = nlm_alpha_backend_data (outbfd)->lita_size + 1;
+ (*relocs)->howto = &nlm32_alpha_nw_howto;
+ ++relocs;
+ ++(*reloc_count_ptr);
+ }
+
+ /* Get the GP value from bfd. */
+ if (nlm_alpha_backend_data (outbfd)->gp == 0)
+ nlm_alpha_backend_data (outbfd)->gp =
+ bfd_ecoff_get_gp_value (insec->owner);
+
+ *relocs = (arelent *) xmalloc (sizeof (arelent));
+ (*relocs)->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
+ (*relocs)->address = nlm_alpha_backend_data (outbfd)->gp;
+ (*relocs)->addend = 0;
+ (*relocs)->howto = &nlm32_alpha_nw_howto;
+ ++relocs;
+ ++(*reloc_count_ptr);
+
+ memcpy ((PTR) relocs, (PTR) old_relocs,
+ (size_t) old_reloc_count * sizeof (arelent *));
+ relocs[old_reloc_count] = (arelent *) NULL;
+
+ free (old_relocs);
+
+ if (insec->output_offset != 0)
+ {
+ register bfd_size_type i;
+
+ for (i = 0; i < (bfd_size_type) old_reloc_count; i++, relocs++)
+ (*relocs)->address += insec->output_offset;
+ }
+}
+
+#endif /* NLMCONV_ALPHA */
+
+#ifdef NLMCONV_POWERPC
+
+/* We keep a linked list of stubs which we must build. Because BFD
+ requires us to know the sizes of all sections before we can set the
+ contents of any, we must figure out which stubs we want to build
+ before we can actually build any of them. */
+
+struct powerpc_stub
+{
+ /* Next stub in linked list. */
+ struct powerpc_stub *next;
+
+ /* Symbol whose value is the start of the stub. This is a symbol
+ whose name begins with `.'. */
+ asymbol *start;
+
+ /* Symbol we are going to create a reloc against. This is a symbol
+ with the same name as START but without the leading `.'. */
+ asymbol *reloc;
+
+ /* The TOC index for this stub. This is the index into the TOC
+ section at which the reloc is created. */
+ unsigned int toc_index;
+};
+
+/* The linked list of stubs. */
+
+static struct powerpc_stub *powerpc_stubs;
+
+/* This is what a stub looks like. The first instruction will get
+ adjusted with the correct TOC index. */
+
+static unsigned long powerpc_stub_insns[] =
+{
+ 0x81820000, /* lwz r12,0(r2) */
+ 0x90410014, /* stw r2,20(r1) */
+ 0x800c0000, /* lwz r0,0(r12) */
+ 0x804c0004, /* lwz r2,r(r12) */
+ 0x7c0903a6, /* mtctr r0 */
+ 0x4e800420, /* bctr */
+ 0, /* Traceback table. */
+ 0xc8000,
+ 0
+};
+
+#define POWERPC_STUB_INSN_COUNT \
+ (sizeof powerpc_stub_insns / sizeof powerpc_stub_insns[0])
+
+#define POWERPC_STUB_SIZE (4 * POWERPC_STUB_INSN_COUNT)
+
+/* Each stub uses a four byte TOC entry. */
+#define POWERPC_STUB_TOC_ENTRY_SIZE (4)
+
+/* The original size of the .got section. */
+static bfd_size_type powerpc_initial_got_size;
+
+/* Look for all undefined symbols beginning with `.', and prepare to
+ build a stub for each one. */
+
+static void
+powerpc_build_stubs (inbfd, outbfd, symbols_ptr, symcount_ptr)
+ bfd *inbfd;
+ bfd *outbfd;
+ asymbol ***symbols_ptr;
+ long *symcount_ptr;
+{
+ asection *stub_sec;
+ asection *got_sec;
+ unsigned int got_base;
+ long i;
+ long symcount;
+ long stubcount;
+
+ /* Make a section to hold stubs. We don't set SEC_HAS_CONTENTS for
+ the section to prevent copy_sections from reading from it. */
+ stub_sec = bfd_make_section (inbfd, ".stubs");
+ if (stub_sec == (asection *) NULL
+ || ! bfd_set_section_flags (inbfd, stub_sec,
+ (SEC_CODE
+ | SEC_RELOC
+ | SEC_ALLOC
+ | SEC_LOAD))
+ || ! bfd_set_section_alignment (inbfd, stub_sec, 2))
+ bfd_fatal (".stubs");
+
+ /* Get the TOC section, which is named .got. */
+ got_sec = bfd_get_section_by_name (inbfd, ".got");
+ if (got_sec == (asection *) NULL)
+ {
+ got_sec = bfd_make_section (inbfd, ".got");
+ if (got_sec == (asection *) NULL
+ || ! bfd_set_section_flags (inbfd, got_sec,
+ (SEC_DATA
+ | SEC_RELOC
+ | SEC_ALLOC
+ | SEC_LOAD
+ | SEC_HAS_CONTENTS))
+ || ! bfd_set_section_alignment (inbfd, got_sec, 2))
+ bfd_fatal (".got");
+ }
+
+ powerpc_initial_got_size = bfd_section_size (inbfd, got_sec);
+ got_base = powerpc_initial_got_size;
+ got_base = (got_base + 3) &~ 3;
+
+ stubcount = 0;
+
+ symcount = *symcount_ptr;
+ for (i = 0; i < symcount; i++)
+ {
+ asymbol *sym;
+ asymbol *newsym;
+ char *newname;
+ struct powerpc_stub *item;
+
+ sym = (*symbols_ptr)[i];
+
+ /* We must make a stub for every undefined symbol whose name
+ starts with '.'. */
+ if (bfd_asymbol_name (sym)[0] != '.'
+ || ! bfd_is_und_section (bfd_get_section (sym)))
+ continue;
+
+ /* Make a new undefined symbol with the same name but without
+ the leading `.'. */
+ newsym = (asymbol *) xmalloc (sizeof (asymbol));
+ *newsym = *sym;
+ newname = (char *) xmalloc (strlen (bfd_asymbol_name (sym)));
+ strcpy (newname, bfd_asymbol_name (sym) + 1);
+ newsym->name = newname;
+
+ /* Define the `.' symbol to be in the stub section. */
+ sym->section = stub_sec;
+ sym->value = stubcount * POWERPC_STUB_SIZE;
+ /* We set the BSF_DYNAMIC flag here so that we can check it when
+ we are mangling relocs. FIXME: This is a hack. */
+ sym->flags = BSF_LOCAL | BSF_DYNAMIC;
+
+ /* Add this stub to the linked list. */
+ item = (struct powerpc_stub *) xmalloc (sizeof (struct powerpc_stub));
+ item->start = sym;
+ item->reloc = newsym;
+ item->toc_index = got_base + stubcount * POWERPC_STUB_TOC_ENTRY_SIZE;
+
+ item->next = powerpc_stubs;
+ powerpc_stubs = item;
+
+ ++stubcount;
+ }
+
+ if (stubcount > 0)
+ {
+ asymbol **s;
+ struct powerpc_stub *l;
+
+ /* Add the new symbols we just created to the symbol table. */
+ *symbols_ptr = (asymbol **) xrealloc ((char *) *symbols_ptr,
+ ((symcount + stubcount)
+ * sizeof (asymbol)));
+ *symcount_ptr += stubcount;
+ s = &(*symbols_ptr)[symcount];
+ for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next)
+ *s++ = l->reloc;
+
+ /* Set the size of the .stubs section and increase the size of
+ the .got section. */
+ if (! bfd_set_section_size (inbfd, stub_sec,
+ stubcount * POWERPC_STUB_SIZE)
+ || ! bfd_set_section_size (inbfd, got_sec,
+ (got_base
+ + (stubcount
+ * POWERPC_STUB_TOC_ENTRY_SIZE))))
+ bfd_fatal (_("stub section sizes"));
+ }
+}
+
+/* Resolve all the stubs for PowerPC NetWare. We fill in the contents
+ of the output section, and create new relocs in the TOC. */
+
+static void
+powerpc_resolve_stubs (inbfd, outbfd)
+ bfd *inbfd;
+ bfd *outbfd;
+{
+ bfd_byte buf[POWERPC_STUB_SIZE];
+ unsigned int i;
+ unsigned int stubcount;
+ arelent **relocs;
+ asection *got_sec;
+ arelent **r;
+ struct powerpc_stub *l;
+
+ if (powerpc_stubs == (struct powerpc_stub *) NULL)
+ return;
+
+ for (i = 0; i < POWERPC_STUB_INSN_COUNT; i++)
+ bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[i], buf + i * 4);
+
+ got_sec = bfd_get_section_by_name (inbfd, ".got");
+ assert (got_sec != (asection *) NULL);
+ assert (got_sec->output_section->orelocation == (arelent **) NULL);
+
+ stubcount = 0;
+ for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next)
+ ++stubcount;
+ relocs = (arelent **) xmalloc (stubcount * sizeof (arelent *));
+
+ r = relocs;
+ for (l = powerpc_stubs; l != (struct powerpc_stub *) NULL; l = l->next)
+ {
+ arelent *reloc;
+
+ /* Adjust the first instruction to use the right TOC index. */
+ bfd_put_32 (outbfd, (bfd_vma) powerpc_stub_insns[0] + l->toc_index, buf);
+
+ /* Write this stub out. */
+ if (! bfd_set_section_contents (outbfd,
+ bfd_get_section (l->start),
+ buf,
+ l->start->value,
+ POWERPC_STUB_SIZE))
+ bfd_fatal (_("writing stub"));
+
+ /* Create a new reloc for the TOC entry. */
+ reloc = (arelent *) xmalloc (sizeof (arelent));
+ reloc->sym_ptr_ptr = &l->reloc;
+ reloc->address = l->toc_index + got_sec->output_offset;
+ reloc->addend = 0;
+ reloc->howto = bfd_reloc_type_lookup (inbfd, BFD_RELOC_32);
+
+ *r++ = reloc;
+ }
+
+ bfd_set_reloc (outbfd, got_sec->output_section, relocs, stubcount);
+}
+
+/* Adjust relocation entries for PowerPC NetWare. We do not output
+ TOC relocations. The object code already contains the offset from
+ the TOC pointer. When the function is called, the TOC register,
+ r2, will be set to the correct TOC value, so there is no need for
+ any further reloc. */
+
+/*ARGSUSED*/
+static void
+powerpc_mangle_relocs (outbfd, insec, relocs_ptr, reloc_count_ptr, contents,
+ contents_size)
+ bfd *outbfd;
+ asection *insec;
+ register arelent ***relocs_ptr;
+ long *reloc_count_ptr;
+ char *contents;
+ bfd_size_type contents_size;
+{
+ reloc_howto_type *toc_howto;
+ long reloc_count;
+ register arelent **relocs;
+ register long i;
+
+ toc_howto = bfd_reloc_type_lookup (insec->owner, BFD_RELOC_PPC_TOC16);
+ if (toc_howto == (reloc_howto_type *) NULL)
+ abort ();
+
+ /* If this is the .got section, clear out all the contents beyond
+ the initial size. We must do this here because copy_sections is
+ going to write out whatever we return in the contents field. */
+ if (strcmp (bfd_get_section_name (insec->owner, insec), ".got") == 0)
+ memset (contents + powerpc_initial_got_size, 0,
+ (size_t) (bfd_get_section_size_after_reloc (insec)
+ - powerpc_initial_got_size));
+
+ reloc_count = *reloc_count_ptr;
+ relocs = *relocs_ptr;
+ for (i = 0; i < reloc_count; i++)
+ {
+ arelent *rel;
+ asymbol *sym;
+ bfd_vma sym_value;
+
+ rel = *relocs++;
+ sym = *rel->sym_ptr_ptr;
+
+ /* Convert any relocs against the .bss section into relocs
+ against the .data section. */
+ if (strcmp (bfd_get_section_name (outbfd, bfd_get_section (sym)),
+ NLM_UNINITIALIZED_DATA_NAME) == 0)
+ {
+ asection *datasec;
+
+ datasec = bfd_get_section_by_name (outbfd,
+ NLM_INITIALIZED_DATA_NAME);
+ if (datasec != NULL)
+ {
+ rel->addend += (bfd_get_section_vma (outbfd,
+ bfd_get_section (sym))
+ + sym->value);
+ rel->sym_ptr_ptr = datasec->symbol_ptr_ptr;
+ sym = *rel->sym_ptr_ptr;
+ }
+ }
+
+ /* We must be able to resolve all PC relative relocs at this
+ point. If we get a branch to an undefined symbol we build a
+ stub, since NetWare will resolve undefined symbols into a
+ pointer to a function descriptor. */
+ if (rel->howto->pc_relative)
+ {
+ /* This check for whether a symbol is in the same section as
+ the reloc will be wrong if there is a PC relative reloc
+ between two sections both of which were placed in the
+ same output section. This should not happen. */
+ if (bfd_get_section (sym) != insec->output_section)
+ fprintf (stderr, _("%s: unresolved PC relative reloc against %s\n"),
+ program_name, bfd_asymbol_name (sym));
+ else
+ {
+ bfd_vma val;
+
+ assert (rel->howto->size == 2 && rel->howto->pcrel_offset);
+ val = bfd_get_32 (outbfd, (bfd_byte *) contents + rel->address);
+ val = ((val &~ rel->howto->dst_mask)
+ | (((val & rel->howto->src_mask)
+ + (sym->value - rel->address)
+ + rel->addend)
+ & rel->howto->dst_mask));
+ bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address);
+
+ /* If this reloc is against an stubbed symbol and the
+ next instruction is
+ cror 31,31,31
+ then we replace the next instruction with
+ lwz r2,20(r1)
+ This reloads the TOC pointer after a stub call. */
+ if (bfd_asymbol_name (sym)[0] == '.'
+ && (sym->flags & BSF_DYNAMIC) != 0
+ && (bfd_get_32 (outbfd,
+ (bfd_byte *) contents + rel->address + 4)
+ == 0x4ffffb82)) /* cror 31,31,31 */
+ bfd_put_32 (outbfd, (bfd_vma) 0x80410014, /* lwz r2,20(r1) */
+ (bfd_byte *) contents + rel->address + 4);
+
+ --*reloc_count_ptr;
+ --relocs;
+ memmove (relocs, relocs + 1,
+ (size_t) ((reloc_count - 1) * sizeof (arelent *)));
+ continue;
+ }
+ }
+
+ /* When considering a TOC reloc, we do not want to include the
+ symbol value. The symbol will be start of the TOC section
+ (which is named .got). We do want to include the addend. */
+ if (rel->howto == toc_howto)
+ sym_value = 0;
+ else
+ sym_value = sym->value;
+
+ /* If this is a relocation against a symbol with a value, or
+ there is a reloc addend, we need to update the addend in the
+ object file. */
+ if (sym_value + rel->addend != 0)
+ {
+ bfd_vma val;
+
+ switch (rel->howto->size)
+ {
+ case 1:
+ val = bfd_get_16 (outbfd,
+ (bfd_byte *) contents + rel->address);
+ val = ((val &~ rel->howto->dst_mask)
+ | (((val & rel->howto->src_mask)
+ + sym_value
+ + rel->addend)
+ & rel->howto->dst_mask));
+ if ((bfd_signed_vma) val < - 0x8000
+ || (bfd_signed_vma) val >= 0x8000)
+ fprintf (stderr,
+ _("%s: overflow when adjusting relocation against %s\n"),
+ program_name, bfd_asymbol_name (sym));
+ bfd_put_16 (outbfd, val, (bfd_byte *) contents + rel->address);
+ break;
+
+ case 2:
+ val = bfd_get_32 (outbfd,
+ (bfd_byte *) contents + rel->address);
+ val = ((val &~ rel->howto->dst_mask)
+ | (((val & rel->howto->src_mask)
+ + sym_value
+ + rel->addend)
+ & rel->howto->dst_mask));
+ bfd_put_32 (outbfd, val, (bfd_byte *) contents + rel->address);
+ break;
+
+ default:
+ abort ();
+ }
+
+ if (! bfd_is_und_section (bfd_get_section (sym)))
+ rel->sym_ptr_ptr = bfd_get_section (sym)->symbol_ptr_ptr;
+ rel->addend = 0;
+ }
+
+ /* Now that we have incorporated the addend, remove any TOC
+ relocs. */
+ if (rel->howto == toc_howto)
+ {
+ --*reloc_count_ptr;
+ --relocs;
+ memmove (relocs, relocs + 1,
+ (size_t) ((reloc_count - i) * sizeof (arelent *)));
+ continue;
+ }
+
+ rel->address += insec->output_offset;
+ }
+}
+
+#endif /* NLMCONV_POWERPC */
+
+/* Name of linker. */
+#ifndef LD_NAME
+#define LD_NAME "ld"
+#endif
+
+/* Temporary file name base. */
+static char *temp_filename;
+
+/* The user has specified several input files. Invoke the linker to
+ link them all together, and convert and delete the resulting output
+ file. */
+
+static char *
+link_inputs (inputs, ld)
+ struct string_list *inputs;
+ char *ld;
+{
+ size_t c;
+ struct string_list *q;
+ char **argv;
+ size_t i;
+ int pid;
+ int status;
+ char *errfmt;
+ char *errarg;
+
+ c = 0;
+ for (q = inputs; q != NULL; q = q->next)
+ ++c;
+
+ argv = (char **) alloca ((c + 5) * sizeof(char *));
+
+#ifndef __MSDOS__
+ if (ld == NULL)
+ {
+ char *p;
+
+ /* Find the linker to invoke based on how nlmconv was run. */
+ p = program_name + strlen (program_name);
+ while (p != program_name)
+ {
+ if (p[-1] == '/')
+ {
+ ld = (char *) xmalloc (p - program_name + strlen (LD_NAME) + 1);
+ memcpy (ld, program_name, p - program_name);
+ strcpy (ld + (p - program_name), LD_NAME);
+ break;
+ }
+ --p;
+ }
+ }
+#endif
+
+ if (ld == NULL)
+ ld = (char *) LD_NAME;
+
+ temp_filename = choose_temp_base ();
+
+ unlink_on_exit = xmalloc (strlen (temp_filename) + 3);
+ sprintf (unlink_on_exit, "%s.O", temp_filename);
+
+ argv[0] = ld;
+ argv[1] = (char *) "-Ur";
+ argv[2] = (char *) "-o";
+ argv[3] = unlink_on_exit;
+ i = 4;
+ for (q = inputs; q != NULL; q = q->next, i++)
+ argv[i] = q->string;
+ argv[i] = NULL;
+
+ if (debug)
+ {
+ for (i = 0; argv[i] != NULL; i++)
+ fprintf (stderr, " %s", argv[i]);
+ fprintf (stderr, "\n");
+ }
+
+ pid = pexecute (ld, argv, program_name, (char *) NULL, &errfmt, &errarg,
+ PEXECUTE_SEARCH | PEXECUTE_ONE);
+ if (pid == -1)
+ {
+ fprintf (stderr, _("%s: execution of %s failed: "), program_name, ld);
+ fprintf (stderr, errfmt, errarg);
+ unlink (unlink_on_exit);
+ exit (1);
+ }
+
+ if (pwait (pid, &status, 0) < 0)
+ {
+ perror ("pwait");
+ unlink (unlink_on_exit);
+ exit (1);
+ }
+
+ if (status != 0)
+ {
+ fprintf (stderr, _("%s: Execution of %s failed\n"), program_name, ld);
+ unlink (unlink_on_exit);
+ exit (1);
+ }
+
+ return unlink_on_exit;
+}