/* Parse options for the GNU linker.
- Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 1999
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001
Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
#include "ldfile.h"
#include "ldver.h"
#include "ldemul.h"
+#include "demangle.h"
#ifndef PATH_SEPARATOR
#if defined (__MSDOS__) || (defined (_WIN32) && ! defined (__CYGWIN32__))
#endif
#endif
-/* Somewhere above, sys/stat.h got included . . . . */
+/* Somewhere above, sys/stat.h got included . . . . */
#if !defined(S_ISDIR) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#define OPTION_NO_UNDEFINED (OPTION_MPC860C0 + 1)
#define OPTION_INIT (OPTION_NO_UNDEFINED + 1)
#define OPTION_FINI (OPTION_INIT + 1)
+#define OPTION_SECTION_START (OPTION_FINI + 1)
+#define OPTION_UNIQUE (OPTION_SECTION_START + 1)
+#define OPTION_TARGET_HELP (OPTION_UNIQUE + 1)
+#define OPTION_ALLOW_SHLIB_UNDEFINED (OPTION_TARGET_HELP + 1)
/* The long options. This structure is used for both the option
parsing and the help text. */
/* The documentation string. If this is NULL, this is a synonym for
the previous option. */
const char *doc;
- enum
- {
- /* Use one dash before long option name. */
- ONE_DASH,
- /* Use two dashes before long option name. */
- TWO_DASHES,
- /* Don't mention this option in --help output. */
- NO_HELP
- } control;
+ enum {
+ /* Use one dash before long option name. */
+ ONE_DASH,
+ /* Use two dashes before long option name. */
+ TWO_DASHES,
+ /* Only accept two dashes before the long option name.
+ This is an overloading of the use of this enum, since originally it
+ was only intended to tell the --help display function how to display
+ the long option name. This feature was added in order to resolve
+ the confusion about the -omagic command line switch. Is it setting
+ the output file name to "magic" or is it setting the NMAGIC flag on
+ the output ? It has been decided that it is setting the output file
+ name, and that if you want to set the NMAGIC flag you should use -N
+ or --omagic. */
+ EXACTLY_TWO_DASHES,
+ /* Don't mention this option in --help output. */
+ NO_HELP
+ } control;
};
static const struct ld_option ld_options[] =
'n', NULL, N_("Do not page align data"), TWO_DASHES },
{ {"omagic", no_argument, NULL, 'N'},
'N', NULL, N_("Do not page align data, do not make text readonly"),
- TWO_DASHES },
+ EXACTLY_TWO_DASHES },
{ {"output", required_argument, NULL, 'o'},
- 'o', N_("FILE"), N_("Set output file name"), TWO_DASHES },
+ 'o', N_("FILE"), N_("Set output file name"), EXACTLY_TWO_DASHES },
{ {NULL, required_argument, NULL, '\0'},
'O', NULL, N_("Optimize output file"), ONE_DASH },
{ {"Qy", no_argument, NULL, OPTION_IGNORE},
'\0', NULL, N_("Ignored for SVR4 compatibility"), ONE_DASH },
+ { {"emit-relocs", no_argument, NULL, 'q'},
+ 'q', NULL, "Generate relocations in final output", TWO_DASHES },
{ {"relocateable", no_argument, NULL, 'r'},
'r', NULL, N_("Generate relocateable output"), TWO_DASHES },
{ {NULL, no_argument, NULL, '\0'},
'T', N_("FILE"), N_("Read linker script"), TWO_DASHES },
{ {"undefined", required_argument, NULL, 'u'},
'u', N_("SYMBOL"), N_("Start with undefined reference to SYMBOL"), TWO_DASHES },
+ { {"unique", no_argument, NULL, OPTION_UNIQUE},
+ '\0', NULL, N_("Don't merge orphan sections with the same name"), TWO_DASHES },
{ {"Ur", no_argument, NULL, OPTION_UR},
'\0', NULL, N_("Build global constructor/destructor tables"), ONE_DASH },
{ {"version", no_argument, NULL, OPTION_VERSION},
'y', N_("SYMBOL"), N_("Trace mentions of SYMBOL"), TWO_DASHES },
{ {NULL, required_argument, NULL, '\0'},
'Y', N_("PATH"), N_("Default search path for Solaris compatibility"), ONE_DASH },
- { {NULL, required_argument, NULL, '\0'},
- 'z', N_("KEYWORD"), N_("Ignored for Solaris compatibility"), ONE_DASH },
{ {"start-group", no_argument, NULL, '('},
'(', NULL, N_("Start a group"), TWO_DASHES },
{ {"end-group", no_argument, NULL, ')'},
'\0', NULL, N_("Output cross reference table"), TWO_DASHES },
{ {"defsym", required_argument, NULL, OPTION_DEFSYM},
'\0', N_("SYMBOL=EXPRESSION"), N_("Define a symbol"), TWO_DASHES },
- { {"demangle", no_argument, NULL, OPTION_DEMANGLE},
- '\0', NULL, N_("Demangle symbol names"), TWO_DASHES },
+ { {"demangle", optional_argument, NULL, OPTION_DEMANGLE},
+ '\0', N_("[=STYLE]"), N_("Demangle symbol names [using STYLE]"), TWO_DASHES },
{ {"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
'\0', N_("PROGRAM"), N_("Set the dynamic linker to use"), TWO_DASHES },
{ {"embedded-relocs", no_argument, NULL, OPTION_EMBEDDED_RELOCS},
'\0', NULL, N_("Use less memory and more disk I/O"), TWO_DASHES },
{ {"no-undefined", no_argument, NULL, OPTION_NO_UNDEFINED},
'\0', NULL, N_("Allow no undefined symbols"), TWO_DASHES },
+ { {"allow-shlib-undefined", no_argument, NULL, OPTION_ALLOW_SHLIB_UNDEFINED},
+ '\0', NULL, N_("Allow undefined symbols in shared objects"), TWO_DASHES },
{ {"no-warn-mismatch", no_argument, NULL, OPTION_NO_WARN_MISMATCH},
'\0', NULL, N_("Don't warn about mismatched input files"), TWO_DASHES},
{ {"no-whole-archive", no_argument, NULL, OPTION_NO_WHOLE_ARCHIVE},
{ {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
'\0', NULL, NULL, NO_HELP },
{ {"oformat", required_argument, NULL, OPTION_OFORMAT},
- '\0', N_("TARGET"), N_("Specify target of output file"), TWO_DASHES },
+ '\0', N_("TARGET"), N_("Specify target of output file"), EXACTLY_TWO_DASHES },
{ {"qmagic", no_argument, NULL, OPTION_IGNORE},
'\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
{ {"relax", no_argument, NULL, OPTION_RELAX},
'\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
'\0', NULL, NULL, NO_HELP },
- { {"split-by-file", no_argument, NULL, OPTION_SPLIT_BY_FILE},
- '\0', NULL, N_("Split output sections for each file"), TWO_DASHES },
- { {"split-by-reloc", required_argument, NULL, OPTION_SPLIT_BY_RELOC},
- '\0', N_("COUNT"), N_("Split output sections every COUNT relocs"), TWO_DASHES },
+ { {"split-by-file", optional_argument, NULL, OPTION_SPLIT_BY_FILE},
+ '\0', N_("[=SIZE]"), N_("Split output sections every SIZE octets"), TWO_DASHES },
+ { {"split-by-reloc", optional_argument, NULL, OPTION_SPLIT_BY_RELOC},
+ '\0', N_("[=COUNT]"), N_("Split output sections every COUNT relocs"), TWO_DASHES },
{ {"stats", no_argument, NULL, OPTION_STATS},
'\0', NULL, N_("Print memory usage statistics"), TWO_DASHES },
+ { {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
+ '\0', NULL, N_("Display target specific options"), TWO_DASHES },
{ {"task-link", required_argument, NULL, OPTION_TASK_LINK},
'\0', N_("SYMBOL"), N_("Do task level linking"), TWO_DASHES },
{ {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
'\0', NULL, N_("Use same format as native linker"), TWO_DASHES },
+ { {"section-start", required_argument, NULL, OPTION_SECTION_START},
+ '\0', N_("SECTION=ADDRESS"), N_("Set address of named section"), TWO_DASHES },
{ {"Tbss", required_argument, NULL, OPTION_TBSS},
'\0', N_("ADDRESS"), N_("Set address of .bss section"), ONE_DASH },
{ {"Tdata", required_argument, NULL, OPTION_TDATA},
'\0', N_("[=WORDS]"), N_("Modify problematic branches in last WORDS (1-10,\n\t\t\t\tdefault 5) words of a page"), TWO_DASHES }
};
-#define OPTION_COUNT ((int) (sizeof ld_options / sizeof ld_options[0]))
+#define OPTION_COUNT ARRAY_SIZE (ld_options)
/* Test STRING for containing a string of digits that form a number
between MIN and MAX. The return value is the number or ERR. */
void
parse_args (argc, argv)
- int argc;
+ unsigned argc;
char **argv;
{
- int i, is, il;
+ unsigned i;
+ int is, il, irl;
int ingroup = 0;
char *default_dirlist = NULL;
char shortopts[OPTION_COUNT * 3 + 2];
struct option longopts[OPTION_COUNT + 1];
+ struct option really_longopts[OPTION_COUNT + 1];
int last_optind;
/* Starting the short option string with '-' is for programs that
shortopts[0] = '-';
is = 1;
il = 0;
+ irl = 0;
for (i = 0; i < OPTION_COUNT; i++)
{
if (ld_options[i].shortopt != '\0')
}
if (ld_options[i].opt.name != NULL)
{
- longopts[il] = ld_options[i].opt;
- ++il;
+ if (ld_options[i].control == EXACTLY_TWO_DASHES)
+ {
+ really_longopts[irl] = ld_options[i].opt;
+ ++irl;
+ }
+ else
+ {
+ longopts[il] = ld_options[i].opt;
+ ++il;
+ }
}
}
shortopts[is] = '\0';
longopts[il].name = NULL;
+ really_longopts[irl].name = NULL;
/* The -G option is ambiguous on different platforms. Sometimes it
specifies the largest data size to put into the small data
/* getopt_long_only is like getopt_long, but '-' as well as '--'
can indicate a long option. */
+ opterr = 0;
optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
-
+ if (optc == '?')
+ {
+ --optind;
+ optc = getopt_long (argc, argv, shortopts, really_longopts, &longind);
+ }
+
if (optc == -1)
break;
+
switch (optc)
{
+ case '?':
+ fprintf (stderr, _("%s: unrecognized option '%s'\n"),
+ program_name, argv[optind - 1]);
default:
+ fprintf (stderr,
+ _("%s: use the --help option for usage information\n"),
+ program_name);
xexit (1);
case 1: /* File name. */
lang_add_input_file (optarg, lang_input_file_is_file_enum,
break;
case OPTION_DEMANGLE:
demangling = true;
+ if (optarg != NULL)
+ {
+ enum demangling_styles style;
+
+ style = cplus_demangle_name_to_style (optarg);
+ if (style == unknown_demangling)
+ einfo (_("%F%P: unknown demangling style `%s'"),
+ optarg);
+
+ cplus_demangle_set_style (style);
+ }
break;
case OPTION_DYNAMIC_LINKER:
command_line.interpreter = optarg;
case OPTION_NO_UNDEFINED:
link_info.no_undefined = true;
break;
+ case OPTION_ALLOW_SHLIB_UNDEFINED:
+ link_info.allow_shlib_undefined = true;
+ break;
case OPTION_NO_WARN_MISMATCH:
command_line.warn_mismatch = false;
break;
link_info.optimize = strtoul (optarg, NULL, 0) ? true : false;
break;
case 'o':
- lang_add_output (optarg, 0);
+ lang_add_output (optarg, 0);
break;
case OPTION_OFORMAT:
lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
break;
+ case 'q':
+ link_info.emitrelocations = true;
+ break;
case 'i':
case 'r':
link_info.relocateable = true;
parser_input = input_script;
yyparse ();
break;
+ case OPTION_SECTION_START:
+ {
+ char *optarg2;
+ char *sec_name;
+ int len;
+
+ /* Check for <something>=<somthing>... */
+ optarg2 = strchr (optarg, '=');
+ if (optarg2 == NULL)
+ {
+ fprintf (stderr,
+ _("%s: Invalid argument to option \"--section-start\"\n"),
+ program_name);
+ xexit (1);
+ }
+
+ optarg2++;
+
+ /* So far so good. Are all the args present? */
+ if ((*optarg == '\0') || (*optarg2 == '\0'))
+ {
+ fprintf (stderr,
+ _("%s: Missing argument(s) to option \"--section-start\"\n"),
+ program_name);
+ xexit (1);
+ }
+
+ /* We must copy the section name as set_section_start
+ doesn't do it for us. */
+ len = optarg2 - optarg;
+ sec_name = xmalloc (len);
+ memcpy (sec_name, optarg, len - 1);
+ sec_name[len - 1] = 0;
+
+ /* Then set it... */
+ set_section_start (sec_name, optarg2);
+ }
+ break;
+ case OPTION_TARGET_HELP:
+ /* Mention any target specific options. */
+ ldemul_list_emulation_options (stdout);
+ exit (0);
case OPTION_TBSS:
set_section_start (".bss", optarg);
break;
case 'u':
ldlang_add_undef (optarg);
break;
+ case OPTION_UNIQUE:
+ config.unique_orphan_sections = true;
+ break;
case OPTION_VERBOSE:
ldversion (1);
version_printed = true;
case OPTION_VERSION:
/* This output is intended to follow the GNU standards document. */
printf ("GNU ld %s\n", ld_program_version);
- printf (_("Copyright 1997 Free Software Foundation, Inc.\n"));
+ printf (_("Copyright 2001 Free Software Foundation, Inc.\n"));
printf (_("\
This program is free software; you may redistribute it under the terms of\n\
the GNU General Public License. This program has absolutely no warranty.\n"));
{
ld_emulation_xfer_type **ptr = ld_emulations;
-
+
printf (_(" Supported emulations:\n"));
- while (*ptr)
+ while (*ptr)
{
printf (" %s\n", (*ptr)->emulation_name);
ptr++;
case 'y':
add_ysym (optarg);
break;
- case 'z':
- /* We accept and ignore this option for Solaris
- compatibility. Actually, on Solaris, optarg is not
- ignored. Someday we should handle it correctly. FIXME. */
- break;
case OPTION_SPLIT_BY_RELOC:
- config.split_by_reloc = atoi (optarg);
- break;
+ if (optarg != NULL)
+ config.split_by_reloc = strtoul (optarg, NULL, 0);
+ else
+ config.split_by_reloc = 32768;
+ break;
case OPTION_SPLIT_BY_FILE:
- config.split_by_file = true;
- break;
+ if (optarg != NULL)
+ config.split_by_file = bfd_scan_vma (optarg, NULL, 0);
+ else
+ config.split_by_file = 1;
+ break;
case OPTION_CHECK_SECTIONS:
command_line.check_section_addresses = true;
break;
lang_leave_group ();
ingroup = 0;
break;
- case OPTION_MPC860C0:
- link_info.mpc860c0 = 20; /* default value (in bytes) */
- if (optarg)
- {
- unsigned words;
+ case OPTION_MPC860C0:
+ link_info.mpc860c0 = 20; /* default value (in bytes) */
+ if (optarg)
+ {
+ unsigned words;
- words = is_num (optarg, 1, 10, 0);
- if (words == 0)
- {
- fprintf (stderr,
+ words = is_num (optarg, 1, 10, 0);
+ if (words == 0)
+ {
+ fprintf (stderr,
_("%s: Invalid argument to option \"mpc860c0\"\n"),
program_name);
- xexit (1);
- }
- link_info.mpc860c0 = words * 4; /* convert words to bytes */
- }
- command_line.relax = true;
- break;
+ xexit (1);
+ }
+ link_info.mpc860c0 = words * 4; /* convert words to bytes */
+ }
+ command_line.relax = true;
+ break;
case OPTION_INIT:
link_info.init_function = optarg;
break;
-
+
case OPTION_FINI:
link_info.fini_function = optarg;
break;
set_section_start (sect, valstr)
char *sect, *valstr;
{
- char *end;
- unsigned long val = strtoul (valstr, &end, 16);
+ const char *end;
+ bfd_vma val = bfd_scan_vma (valstr, &end, 16);
if (*end)
einfo (_("%P%F: invalid hex number `%s'\n"), valstr);
lang_section_start (sect, exp_intop (val));
static void
help ()
{
- int i;
+ unsigned i;
const char **targets, **pp;
printf (_("Usage: %s [options] file...\n"), program_name);
{
boolean comma;
int len;
- int j;
+ unsigned j;
printf (" ");
if (ld_options[j].opt.name != NULL
&& ld_options[j].control != NO_HELP)
{
+ int two_dashes =
+ (ld_options[j].control == TWO_DASHES
+ || ld_options[j].control == EXACTLY_TWO_DASHES);
+
printf ("%s-%s%s",
comma ? ", " : "",
- ld_options[j].control == TWO_DASHES ? "-" : "",
+ two_dashes ? "-" : "",
ld_options[j].opt.name);
len += ((comma ? 2 : 0)
+ 1
- + (ld_options[j].control == TWO_DASHES ? 1 : 0)
+ + (two_dashes ? 1 : 0)
+ strlen (ld_options[j].opt.name));
if (ld_options[j].arg != NULL)
{
printf (_("%s: emulation specific options:\n"), program_name);
ldemul_list_emulation_options (stdout);
printf ("\n");
-
- printf (_("\nReport bugs to bug-gnu-utils@gnu.org\n"));
+
+ printf (_("Report bugs to %s\n"), REPORT_BUGS_TO);
}
projects / deliverable / binutils-gdb.git / blobdiff