/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 1991, 1992, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 1998
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GNU General Public License for more details.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
/*
* Main program for AS; a 32-bit assembler of GNU.
*/
#include "ansidecl.h"
-#include "libiberty.h"
#define COMMON
#include "as.h"
#include "subsegs.h"
#include "output-file.h"
+#include "sb.h"
+#include "macro.h"
+#ifndef HAVE_ITBL_CPU
+#define itbl_parse(itbl_file) 1
+#define itbl_init()
+#endif
+#ifdef HAVE_SBRK
+#ifdef NEED_DECLARATION_SBRK
+extern PTR sbrk ();
+#endif
+#endif
+
+static void show_usage PARAMS ((FILE *));
+static void parse_args PARAMS ((int *, char ***));
+static void dump_statistics PARAMS ((void));
static void perform_an_assembly_pass PARAMS ((int argc, char **argv));
+static int macro_expr PARAMS ((const char *, int, sb *, int *));
int listing; /* true if a listing is wanted */
static char *listing_filename = NULL; /* Name of listing file. */
+/* Type of debugging to generate. */
+
+enum debug_info_type debug_type = DEBUG_NONE;
+
+/* Maximum level of macro nesting. */
+
+int max_macro_nest = 100;
+
char *myname; /* argv[0] */
#ifdef BFD_ASSEMBLER
segT reg_section, expr_section;
segT text_section, data_section, bss_section;
#endif
+/* The default obstack chunk size. If we set this to zero, the
+ obstack code will use whatever will fit in a 4096 byte block. */
+int chunksize = 0;
+
+/* To monitor memory allocation more effectively, make this non-zero.
+ Then the chunk sizes for gas and bfd will be reduced. */
+int debug_memory = 0;
+
+/* We build a list of defsyms as we read the options, and then define
+ them after we have initialized everything. */
+
+struct defsym_list
+{
+ struct defsym_list *next;
+ char *name;
+ valueT value;
+};
+
+static struct defsym_list *defsyms;
+
+/* Keep a record of the itbl files we read in. */
+
+struct itbl_file_list
+{
+ struct itbl_file_list *next;
+ char *name;
+};
+
+static struct itbl_file_list *itbl_files;
\f
void
print_version_id ()
return;
printed = 1;
- fprintf (stderr, "GNU assembler version %s (%s)", GAS_VERSION, TARGET_ALIAS);
#ifdef BFD_ASSEMBLER
- fprintf (stderr, ", using BFD version %s", BFD_VERSION);
+ fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s"),
+ VERSION, TARGET_ALIAS, BFD_VERSION);
+#else
+ fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
#endif
fprintf (stderr, "\n");
}
-void
+static void
show_usage (stream)
FILE *stream;
{
- fprintf (stream, "Usage: %s [option...] [asmfile...]\n", myname);
+ fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
- fprintf (stream, "\
+ fprintf (stream, _("\
Options:\n\
-a[sub-option...] turn on listings\n\
Sub-options [default hls]:\n\
+ c omit false conditionals\n\
d omit debugging directives\n\
h include high-level source\n\
l include assembly\n\
+ m include macro expansions\n\
n omit forms processing\n\
s include symbols\n\
- =file set listing file name (must be last sub-option)\n");
- fprintf (stream, "\
+ =file set listing file name (must be last sub-option)\n"));
+ fprintf (stream, _("\
-D produce assembler debugging messages\n\
+--defsym SYM=VAL define symbol SYM to given value\n\
-f skip whitespace and comment preprocessing\n\
+--gstabs generate stabs debugging information\n\
--help show this message and exit\n\
-I DIR add DIR to search list for .include directives\n\
-J don't warn about signed overflow\n\
-K warn when differences altered for long displacements\n\
--L keep local symbols (starting with `L')\n");
- fprintf (stream, "\
+-L,--keep-locals keep local symbols (e.g. starting with `L')\n"));
+ fprintf (stream, _("\
+-M,--mri assemble in MRI compatibility mode\n\
+--MD FILE write dependency information in FILE (default none)\n\
-nocpp ignored\n\
-o OBJFILE name the object-file output OBJFILE (default a.out)\n\
-R fold data section into text section\n\
---statistics print maximum bytes and total seconds used\n\
+--statistics print various measured statistics from execution\n\
+--strip-local-absolute strip local absolute symbols\n\
+--traditional-format Use same format as native assembler when possible\n\
--version print assembler version number and exit\n\
-W suppress warnings\n\
+--itbl INSTTBL extend instruction set to include instructions\n\
+ matching the specifications defined in file INSTTBL\n\
-w ignored\n\
-X ignored\n\
--Z generate object file even after errors\n");
+-Z generate object file even after errors\n"));
+ fprintf (stream, _("\
+--listing-lhs-width set the width in words of the output data column of\n\
+ the listing\n\
+--listing-lhs-width2 set the width in words of the continuation lines\n\
+ of the output data column; ignored if smaller than\n\
+ the width of the first line\n\
+--listing-rhs-width set the max width in characters of the lines from\n\
+ the source file\n\
+--listing-cont-lines set the maximum number of continuation lines used\n\
+ for the output data column of the listing\n"));
md_show_usage (stream);
+
+ fprintf (stream, _("\nReport bugs to bug-gnu-utils@gnu.org\n"));
}
#ifdef USE_EMULATIONS
extern struct emulation mipsbelf, mipslelf, mipself;
extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
+extern struct emulation i386coff, i386elf;
-static const char *emulation_name;
static struct emulation *const emulations[] = { EMULATIONS };
static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]);
+static void select_emulation_mode PARAMS ((int, char **));
+
static void
select_emulation_mode (argc, argv)
int argc;
p = argv[i+1];
if (!p || !*p)
- as_fatal ("missing emulation mode name");
+ as_fatal (_("missing emulation mode name"));
em = p;
do_default:
if (!strcmp (emulations[i]->name, em))
break;
if (i == n_emulations)
- as_fatal ("unrecognized emulation name `%s'", em);
+ as_fatal (_("unrecognized emulation name `%s'"), em);
this_emulation = emulations[i];
}
else
default_emul_bfd_name ()
{
abort ();
+ return NULL;
}
void
* md_parse_option definitions in config/tc-*.c
*/
-void
+static void
parse_args (pargc, pargv)
int *pargc;
char ***pargv;
/* -K is not meaningful if .word is not being hacked. */
'K',
#endif
- 'L', 'R', 'W', 'Z', 'f', 'a', ':', ':', 'D', 'I', ':', 'o', ':',
+ 'L', 'M', 'R', 'W', 'Z', 'f', 'a', ':', ':', 'D', 'I', ':', 'o', ':',
#ifndef VMS
/* -v takes an argument on VMS, so we don't make it a generic
option. */
'v',
#endif
'w', 'X',
+ /* New option for extending instruction set (see also --itbl below) */
+ 't', ':',
'\0'
};
struct option *longopts;
static const struct option std_longopts[] = {
#define OPTION_HELP (OPTION_STD_BASE)
{"help", no_argument, NULL, OPTION_HELP},
+ {"keep-locals", no_argument, NULL, 'L'},
+ {"mri", no_argument, NULL, 'M'},
#define OPTION_NOCPP (OPTION_STD_BASE + 1)
{"nocpp", no_argument, NULL, OPTION_NOCPP},
#define OPTION_STATISTICS (OPTION_STD_BASE + 2)
{"verbose", no_argument, NULL, OPTION_VERBOSE},
#define OPTION_EMULATION (OPTION_STD_BASE + 6)
{"emulation", required_argument, NULL, OPTION_EMULATION},
+#define OPTION_DEFSYM (OPTION_STD_BASE + 7)
+ {"defsym", required_argument, NULL, OPTION_DEFSYM},
+#define OPTION_INSTTBL (OPTION_STD_BASE + 8)
+ /* 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},
+#define OPTION_LISTING_LHS_WIDTH (OPTION_STD_BASE + 9)
+ {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH},
+#define OPTION_LISTING_LHS_WIDTH2 (OPTION_STD_BASE + 10)
+ {"listing-lhs-width", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
+#define OPTION_LISTING_RHS_WIDTH (OPTION_STD_BASE + 11)
+ {"listing-rhs-width", required_argument, NULL, OPTION_LISTING_RHS_WIDTH},
+#define OPTION_LISTING_CONT_LINES (OPTION_STD_BASE + 12)
+ {"listing-cont-lines", required_argument, NULL, OPTION_LISTING_CONT_LINES},
+#define OPTION_DEPFILE (OPTION_STD_BASE + 13)
+ {"MD", required_argument, NULL, OPTION_DEPFILE},
+#define OPTION_GSTABS (OPTION_STD_BASE + 14)
+ {"gstabs", no_argument, NULL, OPTION_GSTABS},
+#define OPTION_STRIP_LOCAL_ABSOLUTE (OPTION_STD_BASE + 15)
+ {"strip-local-absolute", no_argument, NULL, OPTION_STRIP_LOCAL_ABSOLUTE},
+#define OPTION_TRADITIONAL_FORMAT (OPTION_STD_BASE + 16)
+ {"traditional-format", no_argument, NULL, OPTION_TRADITIONAL_FORMAT}
};
/* Construct the option lists from the standard list and the
flag_print_statistics = 1;
break;
+ case OPTION_STRIP_LOCAL_ABSOLUTE:
+ flag_strip_local_absolute = 1;
+ break;
+
+ case OPTION_TRADITIONAL_FORMAT:
+ flag_traditional_format = 1;
+ break;
+
case OPTION_VERSION:
- print_version_id ();
+ /* This output is intended to follow the GNU standards document. */
+ printf (_("GNU assembler %s\n"), VERSION);
+ printf (_("Copyright 1997 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"));
+ printf (_("This assembler was configured for a target of `%s'.\n"),
+ TARGET_ALIAS);
exit (EXIT_SUCCESS);
case OPTION_EMULATION:
#ifdef USE_EMULATIONS
if (strcmp (optarg, this_emulation->name))
- as_fatal ("multiple emulation names specified");
+ as_fatal (_("multiple emulation names specified"));
#else
- as_fatal ("emulations not handled in this configuration");
+ as_fatal (_("emulations not handled in this configuration"));
#endif
break;
case OPTION_DUMPCONFIG:
- fprintf (stderr, "alias = %s\n", TARGET_ALIAS);
- fprintf (stderr, "canonical = %s\n", TARGET_CANONICAL);
- fprintf (stderr, "cpu-type = %s\n", TARGET_CPU);
+ fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
+ fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
+ fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
#ifdef TARGET_OBJ_FORMAT
- fprintf (stderr, "format = %s\n", TARGET_OBJ_FORMAT);
+ fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
#endif
#ifdef TARGET_FORMAT
- fprintf (stderr, "bfd-target = %s\n", TARGET_FORMAT);
+ fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
#endif
exit (EXIT_SUCCESS);
+ case OPTION_DEFSYM:
+ {
+ char *s;
+ long i;
+ struct defsym_list *n;
+
+ for (s = optarg; *s != '\0' && *s != '='; s++)
+ ;
+ if (*s == '\0')
+ as_fatal (_("bad defsym; format is --defsym name=value"));
+ *s++ = '\0';
+ i = strtol (s, (char **) NULL, 0);
+ n = (struct defsym_list *) xmalloc (sizeof *n);
+ n->next = defsyms;
+ n->name = optarg;
+ n->value = i;
+ defsyms = n;
+ }
+ break;
+
+ case OPTION_INSTTBL:
+ case 't':
+ {
+ /* optarg is the name of the file containing the instruction
+ formats, opcodes, register names, etc. */
+ struct itbl_file_list *n;
+
+ if (optarg == NULL)
+ {
+ as_warn ( _("No file name following -t option\n") );
+ break;
+ }
+
+ n = (struct itbl_file_list *) xmalloc (sizeof *n);
+ n->next = itbl_files;
+ n->name = optarg;
+ itbl_files = n;
+
+ /* Parse the file and add the new instructions to our internal
+ table. If multiple instruction tables are specified, the
+ information from this table gets appended onto the existing
+ internal table. */
+ itbl_files->name = xstrdup (optarg);
+ if (itbl_parse (itbl_files->name) != 0)
+ {
+ fprintf (stderr, _("Failed to read instruction table %s\n"),
+ itbl_files->name);
+ exit (EXIT_SUCCESS);
+ }
+ }
+ break;
+
+ case OPTION_DEPFILE:
+ start_dependencies (optarg);
+ break;
+
+ case OPTION_GSTABS:
+ debug_type = DEBUG_STABS;
+ break;
+
case 'J':
flag_signed_overflow_ok = 1;
break;
flag_keep_locals = 1;
break;
+ case OPTION_LISTING_LHS_WIDTH:
+ listing_lhs_width = atoi(optarg);
+ if (listing_lhs_width_second < listing_lhs_width)
+ listing_lhs_width_second = listing_lhs_width;
+ break;
+ case OPTION_LISTING_LHS_WIDTH2:
+ {
+ int tmp = atoi(optarg);
+ if (tmp > listing_lhs_width)
+ listing_lhs_width_second = tmp;
+ }
+ break;
+ case OPTION_LISTING_RHS_WIDTH:
+ listing_rhs_width = atoi(optarg);
+ break;
+ case OPTION_LISTING_CONT_LINES:
+ listing_lhs_cont_lines = atoi(optarg);
+ break;
+
+ case 'M':
+ flag_mri = 1;
+#ifdef TC_M68K
+ flag_m68k_mri = 1;
+#endif
+ break;
+
case 'R':
flag_readonly_data_in_text = 1;
break;
{
switch (*optarg)
{
+ case 'c':
+ listing |= LISTING_NOCOND;
+ break;
case 'd':
listing |= LISTING_NODEBUG;
break;
case 'l':
listing |= LISTING_LISTING;
break;
+ case 'm':
+ listing |= LISTING_MACEXP;
+ break;
case 'n':
listing |= LISTING_NOFORM;
break;
listing |= LISTING_SYMBOLS;
break;
case '=':
- listing_filename = strdup (optarg + 1);
- if (listing_filename == NULL)
- as_fatal ("virtual memory exhausted");
+ listing_filename = xstrdup (optarg + 1);
optarg += strlen (listing_filename);
break;
default:
- as_fatal ("invalid listing option `%c'", *optarg);
+ as_fatal (_("invalid listing option `%c'"), *optarg);
break;
}
optarg++;
case 'I':
{ /* Include file directory */
- char *temp = strdup (optarg);
- if (!temp)
- as_fatal ("virtual memory exhausted");
+ char *temp = xstrdup (optarg);
add_include_dir (temp);
break;
}
case 'o':
- out_file_name = strdup (optarg);
- if (!out_file_name)
- as_fatal ("virtual memory exhausted");
+ out_file_name = xstrdup (optarg);
break;
case 'w':
*pargv = new_argv;
}
+static long start_time;
+
int
main (argc, argv)
int argc;
char **argv;
{
+ int macro_alternate;
+ int macro_strip_at;
int keep_it;
- long start_time = get_run_time ();
+
+ start_time = get_run_time ();
+
+ setlocale (LC_MESSAGES, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ if (debug_memory)
+ {
+#ifdef BFD_ASSEMBLER
+ extern long _bfd_chunksize;
+ _bfd_chunksize = 64;
+#endif
+ chunksize = 64;
+ }
#ifdef HOST_SPECIAL_INIT
HOST_SPECIAL_INIT (argc, argv);
hex_init ();
#ifdef BFD_ASSEMBLER
bfd_init ();
+ bfd_set_error_program_name (myname);
#endif
#ifdef USE_EMULATIONS
symbol_begin ();
frag_init ();
subsegs_begin ();
+ parse_args (&argc, &argv);
read_begin ();
input_scrub_begin ();
- PROGRESS (1);
- parse_args (&argc, &argv);
+ expr_begin ();
+
+ if (flag_print_statistics)
+ xatexit (dump_statistics);
+
+ macro_alternate = 0;
+ macro_strip_at = 0;
+#ifdef TC_I960
+ macro_strip_at = flag_mri;
+#endif
+#ifdef TC_A29K
+ /* For compatibility with the AMD 29K family macro assembler
+ specification. */
+ macro_alternate = 1;
+ macro_strip_at = 1;
+#endif
+
+ macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
PROGRESS (1);
tc_init_after_args ();
#endif
+ itbl_init ();
+
+ /* Now that we have fully initialized, and have created the output
+ file, define any symbols requested by --defsym command line
+ arguments. */
+ while (defsyms != NULL)
+ {
+ symbolS *sym;
+ struct defsym_list *next;
+
+ sym = symbol_new (defsyms->name, absolute_section, defsyms->value,
+ &zero_address_frag);
+ symbol_table_insert (sym);
+ next = defsyms->next;
+ free (defsyms);
+ defsyms = next;
+ }
+
PROGRESS (1);
perform_an_assembly_pass (argc, argv); /* Assemble it. */
-#ifdef TC_I960
- brtab_emit ();
-#endif
-/* start-sanitize-rce */
-#ifdef TC_RCE
- dump_literals(0);
+
+ cond_finish_check (-1);
+
+#ifdef md_end
+ md_end ();
#endif
-/* end-sanitize-rce */
if (seen_at_least_1_file ()
- && !((had_warnings () && flag_always_generate_output)
- || had_errors () > 0))
+ && (flag_always_generate_output || had_errors () == 0))
keep_it = 1;
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 ();
output_file_close (out_file_name);
#endif
+ if (had_errors () > 0 && ! flag_always_generate_output)
+ keep_it = 0;
+
if (!keep_it)
unlink (out_file_name);
input_scrub_end ();
-#ifdef md_end
- md_end ();
-#endif
END_PROGRESS (myname);
- if (flag_print_statistics)
- {
- extern char **environ;
+ /* Use xexit instead of return, because under VMS environments they
+ may not place the same interpretation on the value given. */
+ if (had_errors () > 0)
+ xexit (EXIT_FAILURE);
+
+ /* Only generate dependency file if assembler was successful. */
+ print_dependencies ();
+
+ xexit (EXIT_SUCCESS);
+}
+
+static void
+dump_statistics ()
+{
+ extern char **environ;
#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
+ char *lim = (char *) sbrk (0);
#endif
- long run_time = get_run_time () - start_time;
+ long run_time = get_run_time () - start_time;
- fprintf (stderr, "%s: total time in assembly: %ld.%06ld\n",
- myname, run_time / 1000000, run_time % 1000000);
+ fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
+ myname, run_time / 1000000, run_time % 1000000);
#ifdef HAVE_SBRK
- fprintf (stderr, "%s: data size %ld\n",
- myname, (long) (lim - (char *) &environ));
+ fprintf (stderr, _("%s: data size %ld\n"),
+ myname, (long) (lim - (char *) &environ));
#endif
- }
- /* Use exit instead of return, because under VMS environments they
- may not place the same interpretation on the value given. */
- if ((had_warnings () && flag_always_generate_output)
- || had_errors () > 0)
- exit (EXIT_FAILURE);
- exit (EXIT_SUCCESS);
+ subsegs_print_statistics (stderr);
+ write_print_statistics (stderr);
+ symbol_print_statistics (stderr);
+ read_print_statistics (stderr);
+
+#ifdef tc_print_statistics
+ tc_print_statistics (stderr);
+#endif
+#ifdef obj_print_statistics
+ obj_print_statistics (stderr);
+#endif
}
\f
#else /* BFD_ASSEMBLER */
/* Create the standard sections, and those the assembler uses
internally. */
- text_section = subseg_new (".text", 0);
- data_section = subseg_new (".data", 0);
- bss_section = subseg_new (".bss", 0);
+ text_section = subseg_new (TEXT_SECTION_NAME, 0);
+ data_section = subseg_new (DATA_SECTION_NAME, 0);
+ bss_section = subseg_new (BSS_SECTION_NAME, 0);
/* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
to have relocs, otherwise we don't find out in time. */
applicable = bfd_applicable_section_flags (stdoutput);
and sections already created, in BFD_ASSEMBLER mode. */
md_begin ();
+#ifdef obj_begin
+ obj_begin ();
+#endif
+
argv++; /* skip argv[0] */
argc--; /* skip argv[0] */
while (argc--)
read_a_source_file ("");
} /* perform_an_assembly_pass() */
+/* The interface between the macro code and gas expression handling. */
+
+static int
+macro_expr (emsg, idx, in, val)
+ const char *emsg;
+ int idx;
+ sb *in;
+ int *val;
+{
+ char *hold;
+ expressionS ex;
+
+ sb_terminate (in);
+
+ hold = input_line_pointer;
+ input_line_pointer = in->ptr + idx;
+ expression (&ex);
+ idx = input_line_pointer - in->ptr;
+ input_line_pointer = hold;
+
+ if (ex.X_op != O_constant)
+ as_bad ("%s", emsg);
+
+ *val = (int) ex.X_add_number;
+
+ return idx;
+}
+
/* end of as.c */