/* 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, 2006, 2007
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.
Since no-one else says they will support them in future: I
don't support them now. */
-#include "ansidecl.h"
-
#define COMMON
#include "as.h"
#include "macro.h"
#include "dwarf2dbg.h"
#include "dw2gencfi.h"
-
-#ifdef BFD_ASSEMBLER
#include "bfdver.h"
-#endif
#ifdef HAVE_ITBL_CPU
#include "itbl-ops.h"
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. */
/* Enable verbose mode. */
int verbose = 0;
-#ifdef BFD_ASSEMBLER
segT reg_section;
segT expr_section;
segT text_section;
segT data_section;
segT bss_section;
-#endif
/* Name of listing file. */
static char *listing_filename = NULL;
return;
printed = 1;
-#ifdef BFD_ASSEMBLER
- fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s"),
+ fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"),
VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
-#else
- fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
-#endif
- fprintf (stderr, "\n");
}
static void
emulate output (default %s)\n"), def_em);
}
#endif
-#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
fprintf (stream, _("\
--execstack require executable stack for this object\n"));
fprintf (stream, _("\
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, _("\
--target-help show target specific options\n"));
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"));
fprintf (stream, _("\
--listing-cont-lines set the maximum number of continuation lines used\n\
for the output data column of the listing\n"));
+ fprintf (stream, _("\
+ @FILE read options from FILE\n"));
md_show_usage (stream);
fputc ('\n', stream);
- fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
+
+ if (REPORT_BUGS_TO[0] && stream == stdout)
+ fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
}
/* Since it is easy to do here we interpret the special arg "-"
OPTION_EXECSTACK,
OPTION_NOEXECSTACK,
OPTION_ALTERNATE,
+ OPTION_AL,
+ 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. */
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'}
+ /* Handle -al=<FILE>. */
+ ,{"al", optional_argument, NULL, OPTION_AL}
,{"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)
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
,{"execstack", no_argument, NULL, OPTION_EXECSTACK}
,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK}
#endif
,{"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
,{"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}
case OPTION_VERSION:
/* This output is intended to follow the GNU standards document. */
-#ifdef BFD_ASSEMBLER
printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
-#else
- printf (_("GNU assembler %s\n"), VERSION);
-#endif
- printf (_("Copyright 2002 Free Software Foundation, Inc.\n"));
+ printf (_("Copyright 2007 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"));
if (*s == '\0')
as_fatal (_("bad defsym; format is --defsym name=value"));
*s++ = '\0';
-#ifdef BFD_ASSEMBLER
i = bfd_scan_vma (s, (const char **) NULL, 0);
-#else
- i = strtol (s, (char **) NULL, 0);
-#endif
n = xmalloc (sizeof *n);
n->next = defsyms;
n->name = optarg;
flag_fatal_warnings = 1;
break;
-#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
case OPTION_EXECSTACK:
flag_execstack = 1;
flag_noexecstack = 0;
flag_always_generate_output = 1;
break;
+ case OPTION_AL:
+ listing |= LISTING_LISTING;
+ if (optarg)
+ listing_filename = xstrdup (optarg);
+ break;
+
case OPTION_ALTERNATE:
optarg = old_argv [optind - 1];
while (* optarg == '-')
case 'a':
if (optarg)
{
+ if (optarg != old_argv[optind] && optarg[-1] == '=')
+ --optarg;
+
if (md_parse_option (optc, optarg) != 0)
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;
+ }
}
}
#endif
}
+#ifndef OBJ_VMS
+static void
+close_output_file (void)
+{
+ output_file_close (out_file_name);
+}
+#endif
+
/* The interface between the macro code and gas expression handling. */
static int
hold = input_line_pointer;
input_line_pointer = in->ptr + idx;
- expression (&ex);
+ expression_and_evaluate (&ex);
idx = input_line_pointer - in->ptr;
input_line_pointer = hold;
perform_an_assembly_pass (int argc, char ** argv)
{
int saw_a_file = 0;
-#ifdef BFD_ASSEMBLER
flagword applicable;
-#endif
need_pass_2 = 0;
-#ifndef BFD_ASSEMBLER
-#ifdef MANY_SEGMENTS
- {
- unsigned int i;
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- segment_info[i].fix_root = 0;
- }
- /* Create the three fixed ones. */
- {
- segT seg;
-
-#ifdef TE_APOLLO
- seg = subseg_new (".wtext", 0);
-#else
- seg = subseg_new (".text", 0);
-#endif
- assert (seg == SEG_E0);
- seg = subseg_new (".data", 0);
- assert (seg == SEG_E1);
- seg = subseg_new (".bss", 0);
- assert (seg == SEG_E2);
-#ifdef TE_APOLLO
- create_target_segments ();
-#endif
- }
-
-#else /* not MANY_SEGMENTS. */
- text_fix_root = NULL;
- data_fix_root = NULL;
- bss_fix_root = NULL;
-#endif /* not MANY_SEGMENTS. */
-#else /* BFD_ASSEMBLER. */
/* Create the standard sections, and those the assembler uses
internally. */
text_section = subseg_new (TEXT_SECTION_NAME, 0);
reg_section = subseg_new ("*GAS `reg' section*", 0);
expr_section = subseg_new ("*GAS `expr' section*", 0);
-#endif /* BFD_ASSEMBLER. */
-
subseg_set (text_section, 0);
/* This may add symbol table entries, which requires having an open BFD,
- and sections already created, in BFD_ASSEMBLER mode. */
+ and sections already created. */
md_begin ();
#ifdef USING_CGEN
read_a_source_file ("");
}
\f
+#ifdef OBJ_ELF
+static void
+create_obj_attrs_section (void)
+{
+ segT s;
+ char *p;
+ addressT addr;
+ offsetT size;
+ const char *name;
+
+ size = bfd_elf_obj_attr_size (stdoutput);
+ if (size)
+ {
+ name = get_elf_backend_data (stdoutput)->obj_attrs_section;
+ if (!name)
+ name = ".gnu.attributes";
+ s = subseg_new (name, 0);
+ elf_section_type (s)
+ = get_elf_backend_data (stdoutput)->obj_attrs_section_type;
+ bfd_set_section_flags (stdoutput, s, SEC_READONLY | SEC_DATA);
+ addr = frag_now_fix ();
+ p = frag_more (size);
+ bfd_elf_set_obj_attr_contents (stdoutput, (bfd_byte *)p, size);
+ }
+}
+#endif
+\f
int
main (int argc, char ** argv)
myname = argv[0];
xmalloc_set_program_name (myname);
+ expandargv (&argc, &argv);
+
START_PROGRESS (myname, 0);
#ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
hex_init ();
-#ifdef BFD_ASSEMBLER
bfd_init ();
bfd_set_error_program_name (myname);
-#endif
#ifdef USE_EMULATIONS
select_emulation_mode (argc, argv);
#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 ();
+#ifndef OBJ_VMS /* Does its own file handling. */
+ /* It has to be called after dump_statistics (). */
+ xatexit (close_output_file);
+#endif
+
if (flag_print_statistics)
xatexit (dump_statistics);
#ifdef TC_I960
macro_strip_at = flag_mri;
#endif
-#ifdef TC_A29K
- /* For compatibility with the AMD 29K family macro assembler
- specification. */
- flag_macro_alternate = 1;
- macro_strip_at = 1;
-#endif
macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr);
PROGRESS (1);
-#ifdef BFD_ASSEMBLER
output_file_create (out_file_name);
assert (stdoutput != 0);
-#endif
#ifdef tc_init_after_args
tc_init_after_args ();
sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
&zero_address_frag);
+ /* Make symbols defined on the command line volatile, so that they
+ can be redefined inside a source file. This makes this assembler's
+ behaviour compatible with earlier versions, but it may not be
+ completely intuitive. */
+ S_SET_VOLATILE (sym);
symbol_table_insert (sym);
next = defsyms->next;
free (defsyms);
md_end ();
#endif
-#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+#ifdef OBJ_ELF
+ create_obj_attrs_section ();
+#endif
+
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
if ((flag_execstack || flag_noexecstack)
&& OUTPUT_FLAVOR == bfd_target_elf_flavour)
{
else
keep_it = 0;
-#if defined (BFD_ASSEMBLER) || !defined (BFD)
/* This used to be done at the start of write_object_file in
write.c, but that caused problems when doing listings when
keep_it was zero. This could probably be moved above md_end, but
I didn't want to risk the change. */
subsegs_finish ();
-#endif
if (keep_it)
write_object_file ();
listing_print (listing_filename);
#endif
-#ifndef OBJ_VMS /* Does its own file handling. */
-#ifndef BFD_ASSEMBLER
- if (keep_it)
-#endif
- output_file_close (out_file_name);
-#endif
-
if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0)
as_bad (_("%d warnings, treating warnings as errors"), had_warnings ());
keep_it = 0;
if (!keep_it)
- unlink (out_file_name);
+ unlink_if_ordinary (out_file_name);
input_scrub_end ();
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