/* as.c - GAS main program.
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* Main program for AS; a 32-bit assembler of GNU.
Understands command arguments.
#include "macro.h"
#include "dwarf2dbg.h"
#include "dw2gencfi.h"
+#include "hash.h"
#ifdef BFD_ASSEMBLER
#include "bfdver.h"
/* Type of debugging to generate. */
enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
+int use_gnu_debug_info_extensions = 0;
+
+#ifndef MD_DEBUG_FORMAT_SELECTOR
+#define MD_DEBUG_FORMAT_SELECTOR NULL
+#endif
+static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR;
/* Maximum level of macro nesting. */
int max_macro_nest = 100;
/* argv[0] */
-char * myname;
+static char * myname;
/* The default obstack chunk size. If we set this to zero, the
obstack code will use whatever will fit in a 4096 byte block. */
static long start_time;
+static int flag_macro_alternate;
+
\f
#ifdef USE_EMULATIONS
#define EMULATION_ENVIRON "AS_EMULATION"
s include symbols\n\
=FILE list to FILE (must be last sub-option)\n"));
+ fprintf (stream, _("\
+ --alternate initially turn on alternate macro syntax\n"));
fprintf (stream, _("\
-D produce assembler debugging messages\n"));
fprintf (stream, _("\
fprintf (stream, _("\
-f skip whitespace and comment preprocessing\n"));
fprintf (stream, _("\
- --gstabs generate stabs debugging information\n"));
+ -g --gen-debug generate debugging information\n"));
+ fprintf (stream, _("\
+ --gstabs generate STABS debugging information\n"));
fprintf (stream, _("\
- --gdwarf2 generate DWARF2 debugging information\n"));
+ --gstabs+ generate STABS debug info with GNU extensions\n"));
+ fprintf (stream, _("\
+ --gdwarf-2 generate DWARF2 debugging information\n"));
+ fprintf (stream, _("\
+ --hash-size=<value> set the hash table size close to <value>\n"));
fprintf (stream, _("\
--help show this message and exit\n"));
fprintf (stream, _("\
fprintf (stream, _("\
-R fold data section into text section\n"));
fprintf (stream, _("\
+ --reduce-memory-overheads \n\
+ prefer smaller memory use at the cost of longer\n\
+ assembly times\n"));
+ fprintf (stream, _("\
--statistics print various measured statistics from execution\n"));
fprintf (stream, _("\
--strip-local-absolute strip local absolute symbols\n"));
/* -K is not meaningful if .word is not being hacked. */
'K',
#endif
- 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'I', ':', 'o', ':',
+ 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':',
#ifndef VMS
/* -v takes an argument on VMS, so we don't make it a generic
option. */
OPTION_LISTING_CONT_LINES,
OPTION_DEPFILE,
OPTION_GSTABS,
+ OPTION_GSTABS_PLUS,
+ OPTION_GDWARF2,
OPTION_STRIP_LOCAL_ABSOLUTE,
OPTION_TRADITIONAL_FORMAT,
- OPTION_GDWARF2,
OPTION_WARN,
OPTION_TARGET_HELP,
OPTION_EXECSTACK,
OPTION_NOEXECSTACK,
+ OPTION_ALTERNATE,
+ OPTION_HASH_TABLE_SIZE,
+ OPTION_REDUCE_MEMORY_OVERHEADS,
OPTION_WARN_FATAL
+ /* When you add options here, check that they do
+ not collide with OPTION_MD_BASE. See as.h. */
};
static const struct option std_longopts[] =
{
- {"help", no_argument, NULL, OPTION_HELP},
- /* getopt allows abbreviations, so we do this to stop it from
- treating -k as an abbreviation for --keep-locals. Some
- ports use -k to enable PIC assembly. */
- {"keep-locals", no_argument, NULL, 'L'},
- {"keep-locals", no_argument, NULL, 'L'},
- {"mri", no_argument, NULL, 'M'},
- {"nocpp", no_argument, NULL, OPTION_NOCPP},
- {"statistics", no_argument, NULL, OPTION_STATISTICS},
- {"version", no_argument, NULL, OPTION_VERSION},
- {"dump-config", no_argument, NULL, OPTION_DUMPCONFIG},
- {"verbose", no_argument, NULL, OPTION_VERBOSE},
- {"emulation", required_argument, NULL, OPTION_EMULATION},
- {"defsym", required_argument, NULL, OPTION_DEFSYM},
+ /* Note: commas are placed at the start of the line rather than
+ the end of the preceeding line so that it is simpler to
+ selectively add and remove lines from this list. */
+ {"alternate", no_argument, NULL, OPTION_ALTERNATE}
+ /* The entry for "a" is here to prevent getopt_long_only() from
+ considering that -a is an abbreviation for --alternate. This is
+ necessary because -a=<FILE> is a valid switch but getopt would
+ normally reject it since --alternate does not take an argument. */
+ ,{"a", optional_argument, NULL, 'a'}
+ ,{"defsym", required_argument, NULL, OPTION_DEFSYM}
+ ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG}
+ ,{"emulation", required_argument, NULL, OPTION_EMULATION}
+#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+ ,{"execstack", no_argument, NULL, OPTION_EXECSTACK}
+ ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK}
+#endif
+ ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
+ ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF2}
+ /* GCC uses --gdwarf-2 but GAS uses to use --gdwarf2,
+ so we keep it here for backwards compatibility. */
+ ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF2}
+ ,{"gen-debug", no_argument, NULL, 'g'}
+ ,{"gstabs", no_argument, NULL, OPTION_GSTABS}
+ ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS}
+ ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE}
+ ,{"help", no_argument, NULL, OPTION_HELP}
/* New option for extending instruction set (see also -t above).
The "-t file" or "--itbl file" option extends the basic set of
valid instructions by reading "file", a text file containing a
list of instruction formats. The additional opcodes and their
formats are added to the built-in set of instructions, and
mnemonics for new registers may also be defined. */
- {"itbl", required_argument, NULL, OPTION_INSTTBL},
- {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH},
- {"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
- {"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH},
- {"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES},
- {"MD", required_argument, NULL, OPTION_DEPFILE},
- {"gstabs", no_argument, NULL, OPTION_GSTABS},
- {"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE},
- {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT},
- {"gdwarf2", no_argument, NULL, OPTION_GDWARF2},
- {"no-warn", no_argument, NULL, 'W'},
- {"warn", no_argument, NULL, OPTION_WARN},
- {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
-#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
- {"execstack", no_argument, NULL, OPTION_EXECSTACK},
- {"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK},
-#endif
- /* Treat '-f' as a long switch so that getopt will not accept
- -f<some-text> as a synonym for -f. This can cause confusion
- when -f switches are passed through from the compiler.
- FIXME - should we handle other single character switches in the
- same way ? */
- {"f", no_argument, NULL, 'f'},
- {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL},
- {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
- /* When you add options here, check that they do not collide with
- OPTION_MD_BASE. See as.h. */
+ ,{"itbl", required_argument, NULL, OPTION_INSTTBL}
+ /* getopt allows abbreviations, so we do this to stop it from
+ treating -k as an abbreviation for --keep-locals. Some
+ ports use -k to enable PIC assembly. */
+ ,{"keep-locals", no_argument, NULL, 'L'}
+ ,{"keep-locals", no_argument, NULL, 'L'}
+ ,{"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH}
+ ,{"listing-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2}
+ ,{"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH}
+ ,{"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES}
+ ,{"MD", required_argument, NULL, OPTION_DEPFILE}
+ ,{"mri", no_argument, NULL, 'M'}
+ ,{"nocpp", no_argument, NULL, OPTION_NOCPP}
+ ,{"no-warn", no_argument, NULL, 'W'}
+ ,{"reduce-memory-overheads", no_argument, NULL, OPTION_REDUCE_MEMORY_OVERHEADS}
+ ,{"statistics", no_argument, NULL, OPTION_STATISTICS}
+ ,{"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE}
+ ,{"version", no_argument, NULL, OPTION_VERSION}
+ ,{"verbose", no_argument, NULL, OPTION_VERBOSE}
+ ,{"target-help", no_argument, NULL, OPTION_TARGET_HELP}
+ ,{"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}
+ ,{"warn", no_argument, NULL, OPTION_WARN}
};
/* Construct the option lists from the standard list and the target
if (md_parse_option (optc, optarg) != 0)
break;
/* `-v' isn't included in the general short_opts list, so check for
- it explicity here before deciding we've gotten a bad argument. */
+ it explicitly here before deciding we've gotten a bad argument. */
if (optc == 'v')
{
#ifdef VMS
verbose = 1;
break;
}
+ else
+ as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : "");
/* Fall through. */
case '?':
#else
printf (_("GNU assembler %s\n"), VERSION);
#endif
- printf (_("Copyright 2002 Free Software Foundation, Inc.\n"));
+ printf (_("Copyright 2005 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"));
start_dependencies (optarg);
break;
+ case 'g':
+ /* Some backends, eg Alpha and Mips, use the -g switch for their
+ own purposes. So we check here for an explicit -g and allow
+ the backend to decide if it wants to process it. */
+ if ( old_argv[optind - 1][1] == 'g'
+ && md_parse_option (optc, optarg))
+ continue;
+
+ if (md_debug_format_selector)
+ debug_type = md_debug_format_selector (& use_gnu_debug_info_extensions);
+ else if (IS_ELF)
+ debug_type = DEBUG_DWARF2;
+ else
+ debug_type = DEBUG_STABS;
+ break;
+
+ case OPTION_GSTABS_PLUS:
+ use_gnu_debug_info_extensions = 1;
+ /* Fall through. */
case OPTION_GSTABS:
debug_type = DEBUG_STABS;
break;
case OPTION_LISTING_LHS_WIDTH2:
{
int tmp = atoi (optarg);
+
if (tmp > listing_lhs_width)
listing_lhs_width_second = tmp;
}
flag_always_generate_output = 1;
break;
+ case OPTION_ALTERNATE:
+ optarg = old_argv [optind - 1];
+ while (* optarg == '-')
+ optarg ++;
+
+ if (strcmp (optarg, "alternate") == 0)
+ {
+ flag_macro_alternate = 1;
+ break;
+ }
+ optarg ++;
+ /* Fall through. */
+
case 'a':
if (optarg)
{
+ if (optarg != old_argv[optind] && optarg[-1] == '=')
+ --optarg;
+
if (md_parse_option (optc, optarg) != 0)
break;
case 'I':
{ /* Include file directory. */
char *temp = xstrdup (optarg);
+
add_include_dir (temp);
break;
}
case 'X':
/* -X means treat warnings as errors. */
break;
+
+ case OPTION_REDUCE_MEMORY_OVERHEADS:
+ /* The only change we make at the moment is to reduce
+ the size of the hash tables that we use. */
+ set_gas_hash_table_size (4051);
+ break;
+
+ case OPTION_HASH_TABLE_SIZE:
+ {
+ unsigned long new_size;
+
+ new_size = strtoul (optarg, NULL, 0);
+ if (new_size)
+ set_gas_hash_table_size (new_size);
+ else
+ as_fatal (_("--hash-size needs a numeric argument"));
+ break;
+ }
}
}
int
main (int argc, char ** argv)
{
- int macro_alternate;
int macro_strip_at;
int keep_it;
#endif
PROGRESS (1);
+ /* Call parse_args before any of the init/begin functions
+ so that switches like --hash-size can be honored. */
+ parse_args (&argc, &argv);
symbol_begin ();
frag_init ();
subsegs_begin ();
- parse_args (&argc, &argv);
read_begin ();
input_scrub_begin ();
expr_begin ();
if (flag_print_statistics)
xatexit (dump_statistics);
- macro_alternate = 0;
macro_strip_at = 0;
#ifdef TC_I960
macro_strip_at = flag_mri;
#ifdef TC_A29K
/* For compatibility with the AMD 29K family macro assembler
specification. */
- macro_alternate = 1;
+ flag_macro_alternate = 1;
macro_strip_at = 1;
#endif
- macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
+ macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr);
PROGRESS (1);
keep_it = 0;
if (!keep_it)
- unlink (out_file_name);
+ unlink_if_ordinary (out_file_name);
input_scrub_end ();
xexit (EXIT_SUCCESS);
}
-
projects / binutils-gdb.git / blobdiff