[binutils.git] / ld / lexsup.c

/* Parse options for the GNU linker.
   Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.

This file is part of GLD, the Gnu Linker.

GLD 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, or (at your option)
any later version.

GLD 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 GLD; see the file COPYING.  If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */

#include "bfd.h"
#include "sysdep.h"
#include <stdio.h>
#include <string.h>
#include "getopt.h"
#include "bfdlink.h"
#include "config.h"
#include "ld.h"
#include "ldmain.h"
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
#include "ldgram.h"
#include "ldlex.h"
#include "ldfile.h"
#include "ldver.h"

/* Omit args to avoid the possibility of clashing with a system header
   that might disagree about consts.  */
unsigned long strtoul ();

static void set_default_dirlist PARAMS ((char *dirlist_ptr));
static void set_section_start PARAMS ((char *sect, char *valstr));

void
parse_args (argc, argv)
     int argc;
     char **argv;
{
  /* 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
     as if it were the argument of an option with character code 1.  */

  const char *shortopts = "-A:B::b:cde:F::G:giL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:";

  /* 150 isn't special; it's just an arbitrary non-ASCII char value.  */

  static struct option longopts[] = {
#define OPTION_CALL_SHARED 150
    {"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
    {"dc", no_argument, NULL, 'd'},
#define OPTION_DEFSYM 151
    {"defsym", required_argument, NULL, OPTION_DEFSYM},
    {"dn", no_argument, NULL, OPTION_CALL_SHARED},
    {"dp", no_argument, NULL, 'd'},
#define OPTION_EB 152
    {"EB", no_argument, NULL, OPTION_EB},
#define OPTION_EL 153
    {"EL", no_argument, NULL, OPTION_EL},
    {"format", required_argument, NULL, 'b'},
#define OPTION_HELP 154
    {"help", no_argument, NULL, OPTION_HELP},
#define OPTION_MAP 155
    {"Map", required_argument, NULL, OPTION_MAP},
#define OPTION_NO_KEEP_MEMORY 156
    {"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
#define OPTION_NOINHIBIT_EXEC 157
    {"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
    {"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
    {"non_shared", no_argument, NULL, OPTION_CALL_SHARED},
#define OPTION_OFORMAT 158
    {"oformat", required_argument, NULL, OPTION_OFORMAT},
    {"Qy", no_argument, NULL, OPTION_CALL_SHARED},
#define OPTION_RELAX 159
    {"relax", no_argument, NULL, OPTION_RELAX},
#define OPTION_RETAIN_SYMBOLS_FILE 160
    {"retain-symbols-file", no_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
#define OPTION_SORT_COMMON 161
    {"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
    {"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
#define OPTION_STATS 162
    {"stats", no_argument, NULL, OPTION_STATS},
#define OPTION_TBSS 163
    {"Tbss", required_argument, NULL, OPTION_TBSS},
#define OPTION_TDATA 164
    {"Tdata", required_argument, NULL, OPTION_TDATA},
#define OPTION_TTEXT 165
    {"Ttext", required_argument, NULL, OPTION_TTEXT},
#define OPTION_UR 166
    {"Ur", no_argument, NULL, OPTION_UR},
#define OPTION_VERSION 167
    {"version", no_argument, NULL, OPTION_VERSION},
#define OPTION_WARN_COMMON 168
    {"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
    {NULL, no_argument, NULL, 0}
  };

  while (1)
    {
      /* getopt_long_only is like getopt_long, but '-' as well as '--' can
	 indicate a long option.  */
      int longind;
      int optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);

      if (optc == -1)
	break;

      switch (optc)
	{
	default:
	  xexit (1);
	case 1:			/* File name.  */
	  lang_add_input_file (optarg, lang_input_file_is_file_enum,
			       (char *) NULL);
	  break;

	case 'A':
	  ldfile_add_arch (optarg);
	  break;
	case 'B':
	  /* Ignore.  */
	  break;
	case 'b':
	  lang_add_target (optarg);
	  break;
	case 'c':
	  ldfile_open_command_file (optarg);
	  parser_input = input_mri_script;
	  yyparse ();
	  break;
	case OPTION_CALL_SHARED:
	  set_default_dirlist ((char *) longopts[longind].name);
	  break;
	case 'd':
	  command_line.force_common_definition = true;
	  break;
	case OPTION_DEFSYM:
	  lex_redirect (optarg);
	  parser_input = input_defsym;
	  yyparse ();
	  break;
	case OPTION_EB:
	  /* FIXME: This is currently ignored.  It means
	     ``produce a big-endian object file''.  It could
	     be used to select an output format.  */
	  break;
	case OPTION_EL:
	  /* FIXME: This is currently ignored.  It means
	     ``produce a little-endian object file''.  It could
	     be used to select an output format.  */
	  break;
	case 'e':
	  lang_add_entry (optarg);
	  break;
	case 'F':
	  /* Ignore.  */
	  break;
	case 'G':
	  {
	    char *end;
	    g_switch_value = strtoul (optarg, &end, 0);
	    if (*end)
	      einfo ("%P%F: invalid number `%s'\n", optarg);
	  }
	  break;
	case 'g':
	  /* Ignore.  */
	  break;
	case OPTION_HELP:
	  help ();
	  xexit (0);
	  break;
	case 'L':
	  ldfile_add_library_path (optarg);
	  break;
	case 'l':
	  lang_add_input_file (optarg, lang_input_file_is_l_enum,
			       (char *) NULL);
	  break;
	case 'M':
	  config.map_filename = "-";
	  break;
	case 'm':
	  /* Ignore.  Was handled in a pre-parse.   */
	  break;
	case OPTION_MAP:
	  write_map = true;
	  config.map_filename = optarg;
	  break;
	case 'N':
	  config.text_read_only = false;
	  config.magic_demand_paged = false;
	  break;
	case 'n':
	  config.magic_demand_paged = false;
	  break;
	case OPTION_NO_KEEP_MEMORY:
	  link_info.keep_memory = false;
	  break;
	case OPTION_NOINHIBIT_EXEC:
	  force_make_executable = true;
	  break;
	case 'O':
	  /* FIXME "-O<non-digits> <value>" used to set the address of
	     section <non-digits>.  Was this for compatibility with
	     something, or can we create a new option to do that
	     (with a syntax similar to -defsym)?
	     getopt can't handle two args to an option without kludges.  */
	  set_default_dirlist (optarg);
	  break;
	case 'o':
	  lang_add_output (optarg, 0); 
	  break;
	case OPTION_OFORMAT:
	  lang_add_output_format (optarg, 0);
	  break;
	case 'r':
	  link_info.relocateable = true;
	  config.build_constructors = false;
	  config.magic_demand_paged = false;
	  config.text_read_only = false;
	  break;
	case 'R':
	  lang_add_input_file (optarg,
			       lang_input_file_is_symbols_only_enum,
			       (char *) NULL);
	  break;
	case OPTION_RELAX:
	  command_line.relax = true;
	  break;
	case OPTION_RETAIN_SYMBOLS_FILE:
	  add_keepsyms_file (optarg);
	  break;
	case 'S':
	  link_info.strip = strip_debugger;
	  break;
	case 's':
	  link_info.strip = strip_all;
	  break;
	case OPTION_SORT_COMMON:
	  config.sort_common = true;
	  break;
	case OPTION_STATS:
	  config.stats = true;
	  break;
	case 't':
	  trace_files = true;
	  break;
	case 'T':
	  ldfile_open_command_file (optarg);
	  parser_input = input_script;
	  yyparse ();
	  break;
	case OPTION_TBSS:
	  set_section_start (".bss", optarg);
	  break;
	case OPTION_TDATA:
	  set_section_start (".data", optarg);
	  break;
	case OPTION_TTEXT:
	  set_section_start (".text", optarg);
	  break;
	case OPTION_UR:
	  link_info.relocateable = true;
	  config.build_constructors = true;
	  config.magic_demand_paged = false;
	  config.text_read_only = false;
	  break;
	case 'u':
	  ldlang_add_undef (optarg);
	  break;
	case 'V':
	  ldversion (1);
	  version_printed = true;
	  trace_file_tries = true;
	  break;
	case 'v':
	  ldversion (0);
	  version_printed = true;
	  break;
	case OPTION_VERSION:
	  ldversion (0);
	  version_printed = true;
	  break;
	case OPTION_WARN_COMMON:
	  config.warn_common = true;
	  break;
	case 'X':
	  link_info.discard = discard_l;
	  break;
	case 'x':
	  link_info.discard = discard_all;
	  break;
	case 'Y':
	  set_default_dirlist (optarg);
	  break;
	case 'y':
	  add_ysym (optarg);
	  break;
	}
    }
}

/* Add the (colon-separated) elements of DIRLIST_PTR to the
   library search path.  */

static void
set_default_dirlist (dirlist_ptr)
     char *dirlist_ptr;
{
  char *p;

  while (1)
    {
      p = strchr (dirlist_ptr, ':');
      if (p != NULL)
	*p = 0;
      if (*dirlist_ptr)
	ldfile_add_library_path (dirlist_ptr);
      if (p == NULL)
	break;
      *p = ':';
      dirlist_ptr = p + 1;
    }
}

static void
set_section_start (sect, valstr)
     char *sect, *valstr;
{
  char *end;
  unsigned long val = strtoul (valstr, &end, 16);
  if (*end)
    einfo ("%P%F: invalid hex number `%s'\n", valstr);
  lang_section_start (sect, exp_intop (val));
}
Commit	Line	Data
d4e5e3c3 DM	1	/* Parse options for the GNU linker.
	2	Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
	3
	4	This file is part of GLD, the Gnu Linker.
	5
	6	GLD is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2, or (at your option)
	9	any later version.
	10
	11	GLD is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GLD; see the file COPYING. If not, write to
	18	the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
	19
	20	#include "bfd.h"
	21	#include "sysdep.h"
	22	#include <stdio.h>
	23	#include <string.h>
	24	#include "getopt.h"
	25	#include "bfdlink.h"
	26	#include "config.h"
	27	#include "ld.h"
	28	#include "ldmain.h"
	29	#include "ldmisc.h"
	30	#include "ldexp.h"
	31	#include "ldlang.h"
	32	#include "ldgram.h"
	33	#include "ldlex.h"
	34	#include "ldfile.h"
4725fb48	35	#include "ldver.h"
d4e5e3c3 DM	36
	37	/* Omit args to avoid the possibility of clashing with a system header
	38	that might disagree about consts. */
	39	unsigned long strtoul ();
	40
	41	static void set_default_dirlist PARAMS ((char *dirlist_ptr));
	42	static void set_section_start PARAMS ((char sect, char valstr));
	43
	44	void
	45	parse_args (argc, argv)
	46	int argc;
	47	char **argv;
	48	{
	49	/* Starting the short option string with '-' is for programs that
	50	expect options and other ARGV-elements in any order and that care about
	51	the ordering of the two. We describe each non-option ARGV-element
	52	as if it were the argument of an option with character code 1. */
	53
d5b79a89	54	const char *shortopts = "-A:B::b:cde:F::G:giL:l:Mm:NnO:o:R:rSsT:tu:VvXxY:y:";
d4e5e3c3	55
d5b79a89 DM	56	/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
	57
	58	static struct option longopts[] = {
	59	#define OPTION_CALL_SHARED 150
	60	{"call_shared", no_argument, NULL, OPTION_CALL_SHARED},
d4e5e3c3	61	{"dc", no_argument, NULL, 'd'},
d5b79a89 DM	62	#define OPTION_DEFSYM 151
	63	{"defsym", required_argument, NULL, OPTION_DEFSYM},
	64	{"dn", no_argument, NULL, OPTION_CALL_SHARED},
d4e5e3c3	65	{"dp", no_argument, NULL, 'd'},
d5b79a89 DM	66	#define OPTION_EB 152
	67	{"EB", no_argument, NULL, OPTION_EB},
	68	#define OPTION_EL 153
	69	{"EL", no_argument, NULL, OPTION_EL},
d4e5e3c3	70	{"format", required_argument, NULL, 'b'},
d5b79a89 DM	71	#define OPTION_HELP 154
	72	{"help", no_argument, NULL, OPTION_HELP},
	73	#define OPTION_MAP 155
	74	{"Map", required_argument, NULL, OPTION_MAP},
	75	#define OPTION_NO_KEEP_MEMORY 156
	76	{"no-keep-memory", no_argument, NULL, OPTION_NO_KEEP_MEMORY},
	77	#define OPTION_NOINHIBIT_EXEC 157
	78	{"noinhibit-exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
	79	{"noinhibit_exec", no_argument, NULL, OPTION_NOINHIBIT_EXEC},
	80	{"non_shared", no_argument, NULL, OPTION_CALL_SHARED},
	81	#define OPTION_OFORMAT 158
	82	{"oformat", required_argument, NULL, OPTION_OFORMAT},
	83	{"Qy", no_argument, NULL, OPTION_CALL_SHARED},
	84	#define OPTION_RELAX 159
	85	{"relax", no_argument, NULL, OPTION_RELAX},
	86	#define OPTION_RETAIN_SYMBOLS_FILE 160
	87	{"retain-symbols-file", no_argument, NULL, OPTION_RETAIN_SYMBOLS_FILE},
	88	#define OPTION_SORT_COMMON 161
	89	{"sort-common", no_argument, NULL, OPTION_SORT_COMMON},
	90	{"sort_common", no_argument, NULL, OPTION_SORT_COMMON},
	91	#define OPTION_STATS 162
	92	{"stats", no_argument, NULL, OPTION_STATS},
	93	#define OPTION_TBSS 163
	94	{"Tbss", required_argument, NULL, OPTION_TBSS},
	95	#define OPTION_TDATA 164
	96	{"Tdata", required_argument, NULL, OPTION_TDATA},
	97	#define OPTION_TTEXT 165
	98	{"Ttext", required_argument, NULL, OPTION_TTEXT},
	99	#define OPTION_UR 166
	100	{"Ur", no_argument, NULL, OPTION_UR},
	101	#define OPTION_VERSION 167
	102	{"version", no_argument, NULL, OPTION_VERSION},
	103	#define OPTION_WARN_COMMON 168
	104	{"warn-common", no_argument, NULL, OPTION_WARN_COMMON},
d4e5e3c3 DM	105	{NULL, no_argument, NULL, 0}
	106	};
	107
	108	while (1)
	109	{
	110	/* getopt_long_only is like getopt_long, but '-' as well as '--' can
	111	indicate a long option. */
d5b79a89 DM	112	int longind;
	113	int optc = getopt_long_only (argc, argv, shortopts, longopts, &longind);
	114
d4e5e3c3 DM	115	if (optc == -1)
	116	break;
	117
	118	switch (optc)
	119	{
	120	default:
	121	xexit (1);
	122	case 1: /* File name. */
	123	lang_add_input_file (optarg, lang_input_file_is_file_enum,
	124	(char *) NULL);
	125	break;
	126
	127	case 'A':
	128	ldfile_add_arch (optarg);
	129	break;
	130	case 'B':
	131	/* Ignore. */
	132	break;
	133	case 'b':
	134	lang_add_target (optarg);
	135	break;
	136	case 'c':
	137	ldfile_open_command_file (optarg);
	138	parser_input = input_mri_script;
	139	yyparse ();
	140	break;
d5b79a89 DM	141	case OPTION_CALL_SHARED:
d5b79a89 DM	142	set_default_dirlist ((char *) longopts[longind].name);
d4e5e3c3 DM	143	break;
	144	case 'd':
	145	command_line.force_common_definition = true;
	146	break;
d5b79a89	147	case OPTION_DEFSYM:
d4e5e3c3 DM	148	lex_redirect (optarg);
	149	parser_input = input_defsym;
	150	yyparse ();
	151	break;
d5b79a89	152	case OPTION_EB:
d4e5e3c3 DM	153	/* FIXME: This is currently ignored. It means
	154	``produce a big-endian object file''. It could
	155	be used to select an output format. */
	156	break;
d5b79a89	157	case OPTION_EL:
d4e5e3c3 DM	158	/* FIXME: This is currently ignored. It means
	159	``produce a little-endian object file''. It could
	160	be used to select an output format. */
	161	break;
	162	case 'e':
	163	lang_add_entry (optarg);
	164	break;
	165	case 'F':
	166	/* Ignore. */
	167	break;
	168	case 'G':
	169	{
	170	char *end;
	171	g_switch_value = strtoul (optarg, &end, 0);
	172	if (*end)
9d3898b2	173	einfo ("%P%F: invalid number `%s'\n", optarg);
d4e5e3c3 DM	174	}
	175	break;
	176	case 'g':
	177	/* Ignore. */
	178	break;
d5b79a89	179	case OPTION_HELP:
d4e5e3c3 DM	180	help ();
	181	xexit (0);
	182	break;
	183	case 'L':
	184	ldfile_add_library_path (optarg);
	185	break;
	186	case 'l':
	187	lang_add_input_file (optarg, lang_input_file_is_l_enum,
	188	(char *) NULL);
	189	break;
	190	case 'M':
	191	config.map_filename = "-";
	192	break;
	193	case 'm':
	194	/* Ignore. Was handled in a pre-parse. */
	195	break;
d5b79a89	196	case OPTION_MAP:
d4e5e3c3 DM	197	write_map = true;
	198	config.map_filename = optarg;
	199	break;
	200	case 'N':
	201	config.text_read_only = false;
	202	config.magic_demand_paged = false;
	203	break;
	204	case 'n':
	205	config.magic_demand_paged = false;
	206	break;
d5b79a89	207	case OPTION_NO_KEEP_MEMORY:
d4e5e3c3 DM	208	link_info.keep_memory = false;
d4e5e3c3 DM	209	break;
d5b79a89	210	case OPTION_NOINHIBIT_EXEC:
d4e5e3c3 DM	211	force_make_executable = true;
	212	break;
	213	case 'O':
	214	/* FIXME "-O<non-digits> <value>" used to set the address of
	215	section <non-digits>. Was this for compatibility with
	216	something, or can we create a new option to do that
	217	(with a syntax similar to -defsym)?
	218	getopt can't handle two args to an option without kludges. */
	219	set_default_dirlist (optarg);
	220	break;
	221	case 'o':
	222	lang_add_output (optarg, 0);
	223	break;
d5b79a89	224	case OPTION_OFORMAT:
d4e5e3c3 DM	225	lang_add_output_format (optarg, 0);
	226	break;
	227	case 'r':
	228	link_info.relocateable = true;
	229	config.build_constructors = false;
	230	config.magic_demand_paged = false;
	231	config.text_read_only = false;
	232	break;
	233	case 'R':
	234	lang_add_input_file (optarg,
	235	lang_input_file_is_symbols_only_enum,
	236	(char *) NULL);
	237	break;
d5b79a89	238	case OPTION_RELAX:
d4e5e3c3 DM	239	command_line.relax = true;
d4e5e3c3 DM	240	break;
d5b79a89	241	case OPTION_RETAIN_SYMBOLS_FILE:
d4e5e3c3 DM	242	add_keepsyms_file (optarg);
	243	break;
	244	case 'S':
	245	link_info.strip = strip_debugger;
	246	break;
	247	case 's':
	248	link_info.strip = strip_all;
	249	break;
d5b79a89	250	case OPTION_SORT_COMMON:
d4e5e3c3 DM	251	config.sort_common = true;
d4e5e3c3 DM	252	break;
d5b79a89	253	case OPTION_STATS:
d4e5e3c3 DM	254	config.stats = true;
	255	break;
	256	case 't':
	257	trace_files = true;
	258	break;
	259	case 'T':
	260	ldfile_open_command_file (optarg);
	261	parser_input = input_script;
	262	yyparse ();
	263	break;
d5b79a89	264	case OPTION_TBSS:
d4e5e3c3 DM	265	set_section_start (".bss", optarg);
d4e5e3c3 DM	266	break;
d5b79a89	267	case OPTION_TDATA:
d4e5e3c3 DM	268	set_section_start (".data", optarg);
d4e5e3c3 DM	269	break;
d5b79a89	270	case OPTION_TTEXT:
d4e5e3c3 DM	271	set_section_start (".text", optarg);
d4e5e3c3 DM	272	break;
d5b79a89	273	case OPTION_UR:
d4e5e3c3 DM	274	link_info.relocateable = true;
	275	config.build_constructors = true;
	276	config.magic_demand_paged = false;
	277	config.text_read_only = false;
	278	break;
	279	case 'u':
	280	ldlang_add_undef (optarg);
	281	break;
	282	case 'V':
	283	ldversion (1);
	284	version_printed = true;
	285	trace_file_tries = true;
	286	break;
	287	case 'v':
	288	ldversion (0);
	289	version_printed = true;
	290	break;
d5b79a89	291	case OPTION_VERSION:
d4e5e3c3 DM	292	ldversion (0);
	293	version_printed = true;
	294	break;
d5b79a89	295	case OPTION_WARN_COMMON:
d4e5e3c3 DM	296	config.warn_common = true;
	297	break;
	298	case 'X':
	299	link_info.discard = discard_l;
	300	break;
	301	case 'x':
	302	link_info.discard = discard_all;
	303	break;
d5b79a89 DM	304	case 'Y':
	305	set_default_dirlist (optarg);
	306	break;
d4e5e3c3 DM	307	case 'y':
	308	add_ysym (optarg);
	309	break;
	310	}
	311	}
	312	}
	313
	314	/* Add the (colon-separated) elements of DIRLIST_PTR to the
	315	library search path. */
	316
	317	static void
	318	set_default_dirlist (dirlist_ptr)
	319	char *dirlist_ptr;
	320	{
	321	char *p;
	322
	323	while (1)
	324	{
	325	p = strchr (dirlist_ptr, ':');
	326	if (p != NULL)
	327	*p = 0;
	328	if (*dirlist_ptr)
	329	ldfile_add_library_path (dirlist_ptr);
	330	if (p == NULL)
	331	break;
	332	*p = ':';
	333	dirlist_ptr = p + 1;
	334	}
	335	}
	336
	337	static void
	338	set_section_start (sect, valstr)
	339	char sect, valstr;
	340	{
	341	char *end;
	342	unsigned long val = strtoul (valstr, &end, 16);
	343	if (*end)
d5b79a89	344	einfo ("%P%F: invalid hex number `%s'\n", valstr);
d4e5e3c3 DM	345	lang_section_start (sect, exp_intop (val));
d4e5e3c3 DM	346	}