/* Parse options for the GNU linker.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002
+ 2001, 2002, 2003
Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
-static int is_num PARAMS ((const char *, int, int, int));
-static void set_default_dirlist PARAMS ((char *));
-static void set_section_start PARAMS ((char *, char *));
-static void help PARAMS ((void));
+static void set_default_dirlist (char *);
+static void set_section_start (char *, char *);
+static void help (void);
/* Non-zero if we are processing a --defsym from the command line. */
int parsing_defsym = 0;
#define OPTION_WARN_ONCE (OPTION_WARN_MULTIPLE_GP + 1)
#define OPTION_WARN_SECTION_ALIGN (OPTION_WARN_ONCE + 1)
#define OPTION_SPLIT_BY_RELOC (OPTION_WARN_SECTION_ALIGN + 1)
-#define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1)
+#define OPTION_SPLIT_BY_FILE (OPTION_SPLIT_BY_RELOC + 1)
#define OPTION_WHOLE_ARCHIVE (OPTION_SPLIT_BY_FILE + 1)
#define OPTION_WRAP (OPTION_WHOLE_ARCHIVE + 1)
#define OPTION_FORCE_EXE_SUFFIX (OPTION_WRAP + 1)
#define OPTION_NO_GC_SECTIONS (OPTION_GC_SECTIONS + 1)
#define OPTION_CHECK_SECTIONS (OPTION_NO_GC_SECTIONS + 1)
#define OPTION_NO_CHECK_SECTIONS (OPTION_CHECK_SECTIONS + 1)
-#define OPTION_MPC860C0 (OPTION_NO_CHECK_SECTIONS + 1)
+#define OPTION_MPC860C0 (OPTION_NO_CHECK_SECTIONS + 1)
#define OPTION_NO_UNDEFINED (OPTION_MPC860C0 + 1)
-#define OPTION_INIT (OPTION_NO_UNDEFINED + 1)
-#define OPTION_FINI (OPTION_INIT + 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_TARGET_HELP (OPTION_UNIQUE + 1)
#define OPTION_ALLOW_SHLIB_UNDEFINED (OPTION_TARGET_HELP + 1)
-#define OPTION_ALLOW_MULTIPLE_DEFINITION (OPTION_ALLOW_SHLIB_UNDEFINED + 1)
+#define OPTION_NO_ALLOW_SHLIB_UNDEFINED (OPTION_ALLOW_SHLIB_UNDEFINED + 1)
+#define OPTION_ALLOW_MULTIPLE_DEFINITION (OPTION_NO_ALLOW_SHLIB_UNDEFINED + 1)
#define OPTION_NO_UNDEFINED_VERSION (OPTION_ALLOW_MULTIPLE_DEFINITION + 1)
#define OPTION_DISCARD_NONE (OPTION_NO_UNDEFINED_VERSION + 1)
#define OPTION_SPARE_DYNAMIC_TAGS (OPTION_DISCARD_NONE + 1)
#define OPTION_NO_STRIP_DISCARDED (OPTION_STRIP_DISCARDED + 1)
#define OPTION_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_NO_STRIP_DISCARDED + 1)
#define OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH (OPTION_ACCEPT_UNKNOWN_INPUT_ARCH + 1)
+#define OPTION_PIE (OPTION_NO_ACCEPT_UNKNOWN_INPUT_ARCH + 1)
/* The long options. This structure is used for both the option
parsing and the help text. */
'\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 },
+ { {"relocatable", no_argument, NULL, 'r'},
+ 'r', NULL, N_("Generate relocatable output"), TWO_DASHES },
{ {NULL, no_argument, NULL, '\0'},
'i', NULL, NULL, ONE_DASH },
{ {"just-symbols", required_argument, NULL, 'R'},
{ {"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 },
+ '\0', NULL, N_("Allow undefined symbols in shared objects (the default)"), TWO_DASHES },
+ { {"no-allow-shlib-undefined", no_argument, NULL, OPTION_NO_ALLOW_SHLIB_UNDEFINED},
+ '\0', NULL, N_("Do not allow undefined symbols in shared objects"), TWO_DASHES },
{ {"allow-multiple-definition", no_argument, NULL, OPTION_ALLOW_MULTIPLE_DEFINITION},
'\0', NULL, N_("Allow multiple definitions"), TWO_DASHES },
{ {"no-undefined-version", no_argument, NULL, OPTION_NO_UNDEFINED_VERSION},
'\0', NULL, N_("Create a shared library"), ONE_DASH },
{ {"Bshareable", no_argument, NULL, OPTION_SHARED }, /* FreeBSD. */
'\0', NULL, NULL, ONE_DASH },
+ { {"pie", no_argument, NULL, OPTION_PIE},
+ '\0', NULL, N_("Create a position independent executable"), ONE_DASH },
+ { {"pic-executable", no_argument, NULL, OPTION_PIE},
+ '\0', NULL, NULL, TWO_DASHES },
{ {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
'\0', NULL, N_("Sort common symbols by size"), TWO_DASHES },
{ {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
between MIN and MAX. The return value is the number or ERR. */
static int
-is_num (string, min, max, err)
- const char *string;
- int min;
- int max;
- int err;
+is_num (const char *string, int min, int max, int err)
{
int result = 0;
}
void
-parse_args (argc, argv)
- unsigned argc;
- char **argv;
+parse_args (unsigned argc, char **argv)
{
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];
+ char *shortopts;
+ struct option *longopts;
+ struct option *really_longopts;
int last_optind;
+ shortopts = xmalloc (OPTION_COUNT * 3 + 2);
+ longopts = xmalloc (sizeof (*longopts) * (OPTION_COUNT + 1));
+ really_longopts = xmalloc (sizeof (*really_longopts) * (OPTION_COUNT + 1));
+
/* Starting the short option string with '-' is for programs that
expect options and other ARGV-elements in any order and that care about
the ordering of the two. We describe each non-option ARGV-element
longopts[il].name = NULL;
really_longopts[irl].name = NULL;
+ ldemul_add_options (is, &shortopts, il, &longopts, irl, &really_longopts);
+
/* The -G option is ambiguous on different platforms. Sometimes it
specifies the largest data size to put into the small data
section. Sometimes it is equivalent to --shared. Unfortunately,
{
char *n;
- n = (char *) xmalloc (strlen (argv[i]) + 20);
+ n = xmalloc (strlen (argv[i]) + 20);
sprintf (n, "--library=%s", argv[i] + 2);
argv[i] = n;
}
optc = getopt_long (argc, argv, "-", really_longopts, &longind);
}
+ if (ldemul_handle_option (optc))
+ continue;
+
if (optc == -1)
break;
einfo (_("%P%F: use the --help option for usage information\n"));
case 1: /* File name. */
- lang_add_input_file (optarg, lang_input_file_is_file_enum,
- (char *) NULL);
+ lang_add_input_file (optarg, lang_input_file_is_file_enum, NULL);
break;
case OPTION_IGNORE:
break;
case 'a':
/* For HP/UX compatibility. Actually -a shared should mean
- ``use only shared libraries'' but, then, we don't
- currently support shared libraries on HP/UX anyhow. */
+ ``use only shared libraries'' but, then, we don't
+ currently support shared libraries on HP/UX anyhow. */
if (strcmp (optarg, "archive") == 0)
config.dynamic_link = FALSE;
else if (strcmp (optarg, "shared") == 0
case 'f':
if (command_line.auxiliary_filters == NULL)
{
- command_line.auxiliary_filters =
- (char **) xmalloc (2 * sizeof (char *));
+ command_line.auxiliary_filters = xmalloc (2 * sizeof (char *));
command_line.auxiliary_filters[0] = optarg;
command_line.auxiliary_filters[1] = NULL;
}
c = 0;
for (p = command_line.auxiliary_filters; *p != NULL; p++)
++c;
- command_line.auxiliary_filters =
- (char **) xrealloc (command_line.auxiliary_filters,
- (c + 2) * sizeof (char *));
+ command_line.auxiliary_filters
+ = xrealloc (command_line.auxiliary_filters,
+ (c + 2) * sizeof (char *));
command_line.auxiliary_filters[c] = optarg;
command_line.auxiliary_filters[c + 1] = NULL;
}
ldfile_add_library_path (optarg, TRUE);
break;
case 'l':
- lang_add_input_file (optarg, lang_input_file_is_l_enum,
- (char *) NULL);
+ lang_add_input_file (optarg, lang_input_file_is_l_enum, NULL);
break;
case 'M':
config.map_filename = "-";
case OPTION_ALLOW_SHLIB_UNDEFINED:
link_info.allow_shlib_undefined = TRUE;
break;
+ case OPTION_NO_ALLOW_SHLIB_UNDEFINED:
+ link_info.allow_shlib_undefined = FALSE;
+ break;
case OPTION_ALLOW_MULTIPLE_DEFINITION:
link_info.allow_multiple_definition = TRUE;
break;
lang_add_output (optarg, 0);
break;
case OPTION_OFORMAT:
- lang_add_output_format (optarg, (char *) NULL, (char *) NULL, 0);
+ lang_add_output_format (optarg, NULL, NULL, 0);
break;
case 'q':
link_info.emitrelocations = TRUE;
and will seg-fault the next time around. */
einfo(_("%P%F: bad -rpath option\n"));
- link_info.relocateable = TRUE;
+ link_info.relocatable = TRUE;
config.build_constructors = FALSE;
config.magic_demand_paged = FALSE;
config.text_read_only = FALSE;
{
lang_add_input_file (optarg,
lang_input_file_is_symbols_only_enum,
- (char *) NULL);
+ NULL);
break;
}
}
else
einfo (_("%P%F: -shared not supported\n"));
break;
+ case OPTION_PIE:
+ if (config.has_shared)
+ {
+ link_info.shared = TRUE;
+ link_info.pie = TRUE;
+ }
+ else
+ einfo (_("%P%F: -pie not supported\n"));
+ break;
case 'h': /* Used on Solaris. */
case OPTION_SONAME:
command_line.soname = optarg;
link_info.task_link = TRUE;
/* Fall through - do an implied -r option. */
case OPTION_UR:
- link_info.relocateable = TRUE;
+ link_info.relocatable = TRUE;
config.build_constructors = TRUE;
config.magic_demand_paged = FALSE;
config.text_read_only = FALSE;
ldversion (1);
version_printed = TRUE;
trace_file_tries = TRUE;
+ overflow_cutoff_limit = -2;
break;
case 'v':
ldversion (0);
break;
case OPTION_VERSION_SCRIPT:
/* This option indicates a small script that only specifies
- version information. Read it, but don't assume that
- we've seen a linker script. */
+ version information. Read it, but don't assume that
+ we've seen a linker script. */
{
FILE *hold_script_handle;
case 'Y':
if (strncmp (optarg, "P,", 2) == 0)
optarg += 2;
+ if (default_dirlist != NULL)
+ free (default_dirlist);
default_dirlist = xstrdup (optarg);
break;
case 'y':
lang_leave_group ();
if (default_dirlist != NULL)
- set_default_dirlist (default_dirlist);
-
+ {
+ set_default_dirlist (default_dirlist);
+ free (default_dirlist);
+ }
}
/* Add the (colon-separated) elements of DIRLIST_PTR to the
library search path. */
static void
-set_default_dirlist (dirlist_ptr)
- char *dirlist_ptr;
+set_default_dirlist (char *dirlist_ptr)
{
char *p;
}
static void
-set_section_start (sect, valstr)
- char *sect, *valstr;
+set_section_start (char *sect, char *valstr)
{
const char *end;
bfd_vma val = bfd_scan_vma (valstr, &end, 16);
/* Print help messages for the options. */
static void
-help ()
+help (void)
{
unsigned i;
const char **targets, **pp;
projects / deliverable / binutils-gdb.git / blobdiff