/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002
+ 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.
+/* Main program for AS; a 32-bit assembler of GNU.
* Understands command arguments.
* Has a few routines that don't fit in other modules because they
* are shared.
*
- *
* bugs
*
* : initialisers
* Since no-one else says they will support them in future: I
* don't support them now.
- *
*/
-#include <stdio.h>
-#include <string.h>
-
-#ifdef _POSIX_SOURCE
-#include <sys/types.h> /* For pid_t in signal.h */
-#endif
-#include <signal.h>
+#include "ansidecl.h"
#define COMMON
#include "as.h"
#include "subsegs.h"
#include "output-file.h"
+#include "sb.h"
+#include "macro.h"
+#include "dwarf2dbg.h"
-#ifndef SIGTY
-#ifdef __STDC__
-#define SIGTY void
+#ifdef HAVE_ITBL_CPU
+#include "itbl-ops.h"
#else
-#define SIGTY int
-#endif /* __STDC__ */
-#endif /* SIGTY */
+#define itbl_parse(itbl_file) 1
+#define itbl_init()
+#endif
-#if 0
-/* Not currently used. */
-static SIGTY got_sig PARAMS ((int sig));
+#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 *));
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS 0
-#define EXIT_FAILURE 1
-#endif
+/* True if a listing is wanted. */
+int listing;
-int listing; /* true if a listing is wanted */
+/* Name of listing file. */
+static char *listing_filename = NULL;
-char *myname; /* argv[0] */
+/* Type of debugging to generate. */
+
+enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
+
+/* Maximum level of macro nesting. */
+int max_macro_nest = 100;
+
+/* argv[0] */
+char *myname;
#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
+#ifdef USE_EMULATIONS
+#define EMULATION_ENVIRON "AS_EMULATION"
+
+extern struct emulation mipsbelf, mipslelf, mipself;
+extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
+extern struct emulation i386coff, i386elf, i386aout;
+extern struct emulation crisaout, criself;
+
+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;
+ char **argv;
+{
+ int i;
+ char *p, *em = 0;
+
+ for (i = 1; i < argc; i++)
+ if (!strncmp ("--em", argv[i], 4))
+ break;
+
+ if (i == argc)
+ goto do_default;
+
+ p = strchr (argv[i], '=');
+ if (p)
+ p++;
+ else
+ p = argv[i + 1];
+
+ if (!p || !*p)
+ as_fatal (_("missing emulation mode name"));
+ em = p;
+
+ do_default:
+ if (em == 0)
+ em = getenv (EMULATION_ENVIRON);
+ if (em == 0)
+ em = DEFAULT_EMULATION;
+
+ if (em)
+ {
+ for (i = 0; i < n_emulations; i++)
+ if (!strcmp (emulations[i]->name, em))
+ break;
+ if (i == n_emulations)
+ as_fatal (_("unrecognized emulation name `%s'"), em);
+ this_emulation = emulations[i];
+ }
+ else
+ this_emulation = emulations[0];
+
+ this_emulation->init ();
+}
+
+const char *
+default_emul_bfd_name ()
+{
+ abort ();
+ return NULL;
+}
+
+void
+common_emul_init ()
+{
+ this_format = this_emulation->format;
+
+ if (this_emulation->leading_underscore == 2)
+ this_emulation->leading_underscore = this_format->dfl_leading_underscore;
+
+ if (this_emulation->default_endian != 2)
+ target_big_endian = this_emulation->default_endian;
+
+ if (this_emulation->fake_label_name == 0)
+ {
+ if (this_emulation->leading_underscore)
+ this_emulation->fake_label_name = "L0\001";
+ else
+ /* What other parameters should we test? */
+ this_emulation->fake_label_name = ".L0\001";
+ }
+}
+#endif
+
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_STRING);
+#else
+ fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
#endif
fprintf (stderr, "\n");
}
-int
-main (argc, argv)
- int argc;
- char **argv;
+static void
+show_usage (stream)
+ FILE *stream;
{
- int work_argc; /* variable copy of argc */
- char **work_argv; /* variable copy of argv */
- char *arg; /* an arg to program */
- char a; /* an arg flag (after -) */
- int keep_it;
+ fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
+
+ 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 list to FILE (must be last sub-option)\n"));
-#if 0 /* do we need any of this?? */
+ fprintf (stream, _("\
+ -D produce assembler debugging messages\n"));
+ fprintf (stream, _("\
+ --defsym SYM=VAL define symbol SYM to given value\n"));
+#ifdef USE_EMULATIONS
{
- static const int sig[] = {SIGHUP, SIGINT, SIGPIPE, SIGTERM, 0};
+ int i;
+ char *def_em;
- for (a = 0; sig[a] != 0; a++)
- if (signal (sig[a], SIG_IGN) != SIG_IGN)
- signal (sig[a], got_sig);
+ fprintf (stream, "\
+ --em=[");
+ for (i = 0; i < n_emulations - 1; i++)
+ fprintf (stream, "%s | ", emulations[i]->name);
+ fprintf (stream, "%s]\n", emulations[i]->name);
+
+ def_em = getenv (EMULATION_ENVIRON);
+ if (!def_em)
+ def_em = DEFAULT_EMULATION;
+ fprintf (stream, _("\
+ emulate output (default %s)\n"), def_em);
}
#endif
+ fprintf (stream, _("\
+ -f skip whitespace and comment preprocessing\n"));
+ fprintf (stream, _("\
+ --gstabs generate stabs debugging information\n"));
+ fprintf (stream, _("\
+ --gdwarf2 generate DWARF2 debugging information\n"));
+ fprintf (stream, _("\
+ --help show this message and exit\n"));
+ fprintf (stream, _("\
+ --target-help show target specific options\n"));
+ fprintf (stream, _("\
+ -I DIR add DIR to search list for .include directives\n"));
+ fprintf (stream, _("\
+ -J don't warn about signed overflow\n"));
+ fprintf (stream, _("\
+ -K warn when differences altered for long displacements\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"));
+ fprintf (stream, _("\
+ --MD FILE write dependency information in FILE (default none)\n"));
+ fprintf (stream, _("\
+ -nocpp ignored\n"));
+ fprintf (stream, _("\
+ -o OBJFILE name the object-file output OBJFILE (default a.out)\n"));
+ fprintf (stream, _("\
+ -R fold data section into text section\n"));
+ fprintf (stream, _("\
+ --statistics print various measured statistics from execution\n"));
+ fprintf (stream, _("\
+ --strip-local-absolute strip local absolute symbols\n"));
+ fprintf (stream, _("\
+ --traditional-format Use same format as native assembler when possible\n"));
+ fprintf (stream, _("\
+ --version print assembler version number and exit\n"));
+ fprintf (stream, _("\
+ -W --no-warn suppress warnings\n"));
+ fprintf (stream, _("\
+ --warn don't suppress warnings\n"));
+ fprintf (stream, _("\
+ --fatal-warnings treat warnings as errors\n"));
+ fprintf (stream, _("\
+ --itbl INSTTBL extend instruction set to include instructions\n\
+ matching the specifications defined in file INSTTBL\n"));
+ fprintf (stream, _("\
+ -w ignored\n"));
+ fprintf (stream, _("\
+ -X ignored\n"));
+ fprintf (stream, _("\
+ -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"));
+ fprintf (stream, _("\
+ --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"));
+ fprintf (stream, _("\
+ --listing-rhs-width set the max width in characters of the lines from\n\
+ the source file\n"));
+ fprintf (stream, _("\
+ --listing-cont-lines set the maximum number of continuation lines used\n\
+ for the output data column of the listing\n"));
- myname = argv[0];
- memset (flagseen, '\0', sizeof (flagseen)); /* aint seen nothing yet */
-#ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
-#define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
-#endif
- out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
+ md_show_usage (stream);
-#ifdef BFD_ASSEMBLER
- bfd_init ();
+ fputc ('\n', stream);
+ fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
+}
+
+/* Since it is easy to do here we interpret the special arg "-"
+ to mean "use stdin" and we set that argv[] pointing to "".
+ After we have munged argv[], the only things left are source file
+ name(s) and ""(s) denoting stdin. These file names are used
+ (perhaps more than once) later.
+
+ check for new machine-dep cmdline options in
+ md_parse_option definitions in config/tc-*.c. */
+
+static void
+parse_args (pargc, pargv)
+ int *pargc;
+ char ***pargv;
+{
+ int old_argc, new_argc;
+ char **old_argv, **new_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. */
+
+ char *shortopts;
+ extern const char *md_shortopts;
+ static const char std_shortopts[] = {
+ '-', 'J',
+#ifndef WORKING_DOT_WORD
+ /* -K is not meaningful if .word is not being hacked. */
+ 'K',
#endif
+ '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;
+ extern struct option md_longopts[];
+ extern size_t md_longopts_size;
+ 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)
+ {"statistics", no_argument, NULL, OPTION_STATISTICS},
+#define OPTION_VERSION (OPTION_STD_BASE + 3)
+ {"version", no_argument, NULL, OPTION_VERSION},
+#define OPTION_DUMPCONFIG (OPTION_STD_BASE + 4)
+ {"dump-config", no_argument, NULL, OPTION_DUMPCONFIG},
+#define OPTION_VERBOSE (OPTION_STD_BASE + 5)
+ {"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-width2", 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},
+#define OPTION_GDWARF2 (OPTION_STD_BASE + 17)
+ {"gdwarf2", no_argument, NULL, OPTION_GDWARF2},
+ {"no-warn", no_argument, NULL, 'W'},
+#define OPTION_WARN (OPTION_STD_BASE + 18)
+ {"warn", no_argument, NULL, OPTION_WARN},
+#define OPTION_TARGET_HELP (OPTION_STD_BASE + 19)
+ {"target-help", no_argument, NULL, OPTION_TARGET_HELP},
+#define OPTION_WARN_FATAL (OPTION_STD_BASE + 20)
+ {"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. */
+ };
- symbol_begin ();
- subsegs_begin ();
- read_begin ();
- input_scrub_begin ();
- frag_init ();
- /*
- * Parse arguments, but we are only interested in flags.
- * When we find a flag, we process it then make it's argv[] NULL.
- * This helps any future argv[] scanners avoid what we processed.
- * Since it is easy to do here we interpret the special arg "-"
- * to mean "use stdin" and we set that argv[] pointing to "".
- * After we have munged argv[], the only things left are source file
- * name(s) and ""(s) denoting stdin. These file names are used
- * (perhaps more than once) later.
- */
- /* FIXME-SOMEDAY this should use getopt. */
- work_argc = argc - 1; /* don't count argv[0] */
- work_argv = argv + 1; /* skip argv[0] */
- for (; work_argc--; work_argv++)
+ /* Construct the option lists from the standard list and the target
+ dependent list. Include space for an extra NULL option and
+ always NULL terminate. */
+ shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
+ longopts = (struct option *) xmalloc (sizeof (std_longopts)
+ + md_longopts_size
+ + sizeof (struct option));
+ memcpy (longopts, std_longopts, sizeof (std_longopts));
+ memcpy ((char *) longopts + sizeof (std_longopts),
+ md_longopts, md_longopts_size);
+ memset ((char *) longopts + sizeof (std_longopts) + md_longopts_size,
+ 0, sizeof (struct option));
+
+ /* Make a local copy of the old argv. */
+ old_argc = *pargc;
+ old_argv = *pargv;
+
+ /* Initialize a new argv that contains no options. */
+ new_argv = (char **) xmalloc (sizeof (char *) * (old_argc + 1));
+ new_argv[0] = old_argv[0];
+ new_argc = 1;
+ new_argv[new_argc] = NULL;
+
+ while (1)
{
- arg = *work_argv; /* work_argv points to this argument */
+ /* getopt_long_only is like getopt_long, but '-' as well as '--' can
+ indicate a long option. */
+ int longind;
+ int optc = getopt_long_only (old_argc, old_argv, shortopts, longopts,
+ &longind);
+
+ if (optc == -1)
+ break;
- if (*arg != '-') /* Filename. We need it later. */
- continue; /* Keep scanning args looking for flags. */
- if (arg[1] == '-' && arg[2] == 0)
+ switch (optc)
{
- /* "--" as an argument means read STDIN */
- /* on this scan, we don't want to think about filenames */
- *work_argv = ""; /* Code that means 'use stdin'. */
- continue;
- }
- /* This better be a switch. */
- arg++; /*->letter. */
-
- while ((a = *arg) != '\0')
- { /* scan all the 1-char flags */
- arg++; /* arg->after letter. */
- a &= 0x7F; /* ascii only please */
- flagseen[(unsigned char) a] = 1;
- switch (a)
+ default:
+ /* md_parse_option should return 1 if it recognizes optc,
+ 0 if not. */
+ 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. */
+ if (optc == 'v')
{
- case 'a':
- {
- int loop = 1;
-
- while (loop)
- {
- switch (*arg)
- {
- case 'l':
- listing |= LISTING_LISTING;
- arg++;
- break;
- case 's':
- listing |= LISTING_SYMBOLS;
- arg++;
- break;
- case 'h':
- listing |= LISTING_HLL;
- arg++;
- break;
-
- case 'n':
- listing |= LISTING_NOFORM;
- arg++;
- break;
- case 'd':
- listing |= LISTING_NODEBUG;
- arg++;
- break;
- default:
- if (!listing)
- listing = LISTING_DEFAULT;
- loop = 0;
- break;
- }
- }
- }
-
+#ifdef VMS
+ /* Telling getopt to treat -v's value as optional can result
+ in it picking up a following filename argument here. The
+ VMS code in md_parse_option can return 0 in that case,
+ but it has no way of pushing the filename argument back. */
+ if (optarg && *optarg)
+ new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
+ else
+#else
+ case 'v':
+#endif
+ case OPTION_VERBOSE:
+ print_version_id ();
break;
+ }
+ /* Fall through. */
+ case '?':
+ exit (EXIT_FAILURE);
- case 'f':
- break; /* -f means fast - no need for "app" preprocessor. */
+ case 1: /* File name. */
+ if (!strcmp (optarg, "-"))
+ optarg = "";
+ new_argv[new_argc++] = optarg;
+ new_argv[new_argc] = NULL;
+ break;
- case 'D':
- /* DEBUG is implemented: it debugs different */
- /* things to other people's assemblers. */
- break;
+ case OPTION_TARGET_HELP:
+ md_show_usage (stdout);
+ exit (EXIT_SUCCESS);
- case 'I':
- { /* Include file directory */
-
- char *temp = NULL;
- if (*arg)
- {
- temp = strdup (arg);
- if (!temp)
- as_fatal ("virtual memory exhausted");
- }
- else if (work_argc)
- {
- *work_argv = NULL;
- work_argc--;
- temp = *++work_argv;
- }
- else
- as_warn ("%s: I expected a filename after -I", myname);
- add_include_dir (temp);
- arg = ""; /* Finished with this arg. */
- break;
- }
+ case OPTION_HELP:
+ show_usage (stdout);
+ exit (EXIT_SUCCESS);
-#ifdef WARN_SIGNED_OVERFLOW_WORD
- /* Don't warn about signed overflow. */
- case 'J':
- break;
+ case OPTION_NOCPP:
+ break;
+
+ case OPTION_STATISTICS:
+ 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:
+ /* 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 (_("\
+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);
-#ifndef WORKING_DOT_WORD
- case 'K':
- break;
+ case OPTION_EMULATION:
+#ifdef USE_EMULATIONS
+ if (strcmp (optarg, this_emulation->name))
+ as_fatal (_("multiple emulation names specified"));
+#else
+ as_fatal (_("emulations not handled in this configuration"));
#endif
+ break;
- case 'L': /* -L means keep L* symbols */
- 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);
+#ifdef TARGET_OBJ_FORMAT
+ fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
+#endif
+#ifdef TARGET_FORMAT
+ fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
+#endif
+ exit (EXIT_SUCCESS);
- case 'o':
- if (*arg) /* Rest of argument is object file-name. */
- {
- out_file_name = strdup (arg);
- if (!out_file_name)
- as_fatal ("virtual memory exhausted");
- }
- else if (work_argc)
- { /* Want next arg for a file-name. */
- *work_argv = NULL; /* This is not a file-name. */
- work_argc--;
- out_file_name = *++work_argv;
- }
- else
- as_warn ("%s: I expected a filename after -o. \"%s\" assumed.",
- myname, out_file_name);
- arg = ""; /* Finished with this arg. */
- break;
+ case OPTION_DEFSYM:
+ {
+ char *s;
+ valueT i;
+ struct defsym_list *n;
- case 'R':
- /* -R means put data into text segment */
- flag_readonly_data_in_text = 1;
- break;
+ for (s = optarg; *s != '\0' && *s != '='; s++)
+ ;
+ 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 = (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;
- case 'v':
-#ifdef VMS
+ if (optarg == NULL)
{
- extern char *compiler_version_string;
- compiler_version_string = arg;
+ as_warn (_("no file name following -t option"));
+ break;
}
-#else /* not VMS */
- if (*arg && strcmp (arg, "ersion"))
+
+ 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)
+ as_fatal (_("failed to read instruction table %s\n"),
+ itbl_files->name);
+ }
+ break;
+
+ case OPTION_DEPFILE:
+ start_dependencies (optarg);
+ break;
+
+ case OPTION_GSTABS:
+ debug_type = DEBUG_STABS;
+ break;
+
+ case OPTION_GDWARF2:
+ debug_type = DEBUG_DWARF2;
+ break;
+
+ case 'J':
+ flag_signed_overflow_ok = 1;
+ break;
+
+#ifndef WORKING_DOT_WORD
+ case 'K':
+ flag_warn_displacement = 1;
+ break;
+#endif
+
+ case 'L':
+ 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;
+
+ case 'W':
+ flag_no_warnings = 1;
+ break;
+
+ case OPTION_WARN:
+ flag_no_warnings = 0;
+ flag_fatal_warnings = 0;
+ break;
+
+ case OPTION_WARN_FATAL:
+ flag_no_warnings = 0;
+ flag_fatal_warnings = 1;
+ break;
+
+ case 'Z':
+ flag_always_generate_output = 1;
+ break;
+
+ case 'a':
+ if (optarg)
+ {
+ if (md_parse_option (optc, optarg) != 0)
+ break;
+
+ while (*optarg)
{
- as_warn ("Unknown option `-v%s' ignored", arg);
- arg += strlen (arg);
- break;
+ switch (*optarg)
+ {
+ case 'c':
+ listing |= LISTING_NOCOND;
+ break;
+ case 'd':
+ listing |= LISTING_NODEBUG;
+ break;
+ case 'h':
+ listing |= LISTING_HLL;
+ break;
+ case 'l':
+ listing |= LISTING_LISTING;
+ break;
+ case 'm':
+ listing |= LISTING_MACEXP;
+ break;
+ case 'n':
+ listing |= LISTING_NOFORM;
+ break;
+ case 's':
+ listing |= LISTING_SYMBOLS;
+ break;
+ case '=':
+ listing_filename = xstrdup (optarg + 1);
+ optarg += strlen (listing_filename);
+ break;
+ default:
+ as_fatal (_("invalid listing option `%c'"), *optarg);
+ break;
+ }
+ optarg++;
}
+ }
+ if (!listing)
+ listing = LISTING_DEFAULT;
+ break;
- print_version_id ();
-#endif /* not VMS */
- while (*arg)
- arg++; /* Skip the rest */
- break;
+ case 'D':
+ /* DEBUG is implemented: it debugs different
+ things from other people's assemblers. */
+ flag_debug = 1;
+ break;
- case 'W':
- /* -W means don't warn about things */
- flag_suppress_warnings = 1;
- break;
+ case 'f':
+ flag_no_comments = 1;
+ break;
- case 'w':
- case 'X':
- /* -X means treat warnings as errors */
- break;
- case 'Z':
- /* -Z means attempt to generate object file even after errors. */
- flag_always_generate_output = 1;
- break;
+ case 'I':
+ { /* Include file directory. */
+ char *temp = xstrdup (optarg);
+ add_include_dir (temp);
+ break;
+ }
- default:
- --arg;
- if (md_parse_option (&arg, &work_argc, &work_argv) == 0)
- as_warn ("%s: I don't understand '%c' flag.", myname, a);
- if (arg && *arg)
- arg++;
- break;
- }
+ case 'o':
+ out_file_name = xstrdup (optarg);
+ break;
+
+ case 'w':
+ break;
+
+ case 'X':
+ /* -X means treat warnings as errors. */
+ break;
}
- /*
- * We have just processed a "-..." arg, which was not a
- * file-name. Smash it so the
- * things that look for filenames won't ever see it.
- *
- * Whatever work_argv points to, it has already been used
- * as part of a flag, so DON'T re-use it as a filename.
- */
- *work_argv = NULL; /* NULL means 'not a file-name' */
}
+ free (shortopts);
+ free (longopts);
+
+ *pargc = new_argc;
+ *pargv = new_argv;
+
+#ifdef md_after_parse_args
+ md_after_parse_args ();
+#endif
+}
+
+static long start_time;
+
+int main PARAMS ((int, char **));
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int macro_alternate;
+ int macro_strip_at;
+ int keep_it;
+
+ start_time = get_run_time ();
+
+#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+ setlocale (LC_MESSAGES, "");
+#endif
+#if defined (HAVE_SETLOCALE)
+ setlocale (LC_CTYPE, "");
+#endif
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ if (debug_memory)
+ chunksize = 64;
+
+#ifdef HOST_SPECIAL_INIT
+ HOST_SPECIAL_INIT (argc, argv);
+#endif
+
+ myname = argv[0];
+ xmalloc_set_program_name (myname);
+
+ START_PROGRESS (myname, 0);
+
+#ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
+#define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
+#endif
+
+ 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);
+ 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;
+#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);
+
#ifdef BFD_ASSEMBLER
output_file_create (out_file_name);
assert (stdoutput != 0);
#endif
- /* Here with flags set up in flagseen[]. */
- perform_an_assembly_pass (argc, argv); /* Assemble it. */
-#ifdef TC_I960
- brtab_emit ();
+#ifdef tc_init_after_args
+ 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);
+
+ /* Assemble it. */
+ perform_an_assembly_pass (argc, argv);
+
+ cond_finish_check (-1);
+
+#ifdef md_end
+ md_end ();
#endif
+ /* If we've been collecting dwarf2 .debug_line info, either for
+ assembly debugging or on behalf of the compiler, emit it now. */
+ dwarf2_finish ();
+
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 ();
#ifndef NO_LISTING
- listing_print ("");
+ 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 ());
+
+ 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 ();
+
+ END_PROGRESS (myname);
+
+ /* 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 ()
+{
+#ifdef HAVE_SBRK
+ char *lim = (char *) sbrk (0);
#endif
+ long run_time = get_run_time () - start_time;
- if ((had_warnings () && flagseen['Z'])
- || had_errors () > 0)
- return EXIT_FAILURE;
- return EXIT_SUCCESS;
+ 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));
+#endif
+
+ 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
+/* Here to attempt 1 pass over each input file.
+ We scan argv[*] looking for filenames or exactly "" which is
+ shorthand for stdin. Any argv that is NULL is not a file-name.
+ We set need_pass_2 TRUE if, after this, we still have unresolved
+ expressions of the form (unknown value)+-(unknown value).
-/* perform_an_assembly_pass()
- *
- * Here to attempt 1 pass over each input file.
- * We scan argv[*] looking for filenames or exactly "" which is
- * shorthand for stdin. Any argv that is NULL is not a file-name.
- * We set need_pass_2 TRUE if, after this, we still have unresolved
- * expressions of the form (unknown value)+-(unknown value).
- *
- * Note the un*x semantics: there is only 1 logical input file, but it
- * may be a catenation of many 'physical' input files.
- */
-static void
+ Note the un*x semantics: there is only 1 logical input file, but it
+ may be a catenation of many 'physical' input files. */
+
+static void
perform_an_assembly_pass (argc, argv)
int argc;
char **argv;
for (i = SEG_E0; i < SEG_UNKNOWN; i++)
segment_info[i].fix_root = 0;
}
- /* Create the three fixed ones */
+ /* 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 */
#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. */
+ to have relocs, otherwise we don't find out in time. */
applicable = bfd_applicable_section_flags (stdoutput);
bfd_set_section_flags (stdoutput, text_section,
applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
| SEC_CODE | SEC_READONLY));
- /* @@ FIXME -- SEC_CODE seems to mean code only, rather than code possibly.*/
bfd_set_section_flags (stdoutput, data_section,
- applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC));
+ applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
+ | SEC_DATA));
bfd_set_section_flags (stdoutput, bss_section, applicable & SEC_ALLOC);
seg_info (bss_section)->bss = 1;
subseg_new (BFD_ABS_SECTION_NAME, 0);
and sections already created, in BFD_ASSEMBLER mode. */
md_begin ();
- argv++; /* skip argv[0] */
- argc--; /* skip argv[0] */
+#ifdef obj_begin
+ obj_begin ();
+#endif
+
+ /* Skip argv[0]. */
+ argv++;
+ argc--;
+
while (argc--)
{
if (*argv)
- { /* Is it a file-name argument? */
+ { /* Is it a file-name argument? */
+ PROGRESS (1);
saw_a_file++;
- /* argv->"" if stdin desired, else->filename */
+ /* argv->"" if stdin desired, else->filename */
read_a_source_file (*argv);
}
- argv++; /* completed that argv */
+ argv++; /* completed that argv */
}
if (!saw_a_file)
read_a_source_file ("");
-} /* perform_an_assembly_pass() */
-\f
-#if 0
-/* This is not currently used. */
-static SIGTY
-got_sig (sig)
- int sig;
+}
+
+/* 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;
{
- static here_before = 0;
+ char *hold;
+ expressionS ex;
- as_bad ("Interrupted by signal %d", sig);
- if (here_before++)
- exit (EXIT_FAILURE);
-#if 0 /* If SIGTY is void, this produces warnings. */
- return ((SIGTY) 0);
-#endif
-}
-#endif
+ 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;
-/* end of as.c */
+ if (ex.X_op != O_constant)
+ as_bad ("%s", emsg);
+
+ *val = (int) ex.X_add_number;
+
+ return idx;
+}
projects / binutils.git / blobdiff