/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
- Free Software Foundation, Inc.
+ Copyright (C) 1987-2014 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- GAS 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.
+ GAS 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 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.
- * 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 "ansidecl.h"
+ 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. */
#define COMMON
#include "output-file.h"
#include "sb.h"
#include "macro.h"
+#include "dwarf2dbg.h"
+#include "dw2gencfi.h"
+#include "bfdver.h"
#ifdef HAVE_ITBL_CPU
#include "itbl-ops.h"
#else
-#define itbl_parse(itbl_file) 1
#define itbl_init()
#endif
#ifdef HAVE_SBRK
#ifdef NEED_DECLARATION_SBRK
-extern PTR sbrk ();
+extern void *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 *));
+#ifdef USING_CGEN
+/* Perform any cgen specific initialisation for gas. */
+extern void gas_cgen_begin (void);
+#endif
+
+/* 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;
+};
+
/* True if a listing is wanted. */
int listing;
-/* Name of listing file. */
-static char *listing_filename = NULL;
-
/* Type of debugging to generate. */
+enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
+int use_gnu_debug_info_extensions = 0;
-enum debug_info_type debug_type = DEBUG_NONE;
+#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;
-#ifdef BFD_ASSEMBLER
-segT reg_section, expr_section;
-segT text_section, data_section, bss_section;
-#endif
+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. */
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. */
+/* Enable verbose mode. */
+int verbose = 0;
-struct defsym_list
-{
- struct defsym_list *next;
- char *name;
- valueT value;
-};
+/* Keep the output file. */
+static int keep_it = 0;
+
+segT reg_section;
+segT expr_section;
+segT text_section;
+segT data_section;
+segT bss_section;
+
+/* Name of listing file. */
+static char *listing_filename = NULL;
static struct defsym_list *defsyms;
+#ifdef HAVE_ITBL_CPU
/* 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;
+#endif
+
+static long start_time;
+#ifdef HAVE_SBRK
+char *start_sbrk;
+#endif
+
+static int flag_macro_alternate;
+
\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;
+select_emulation_mode (int argc, char **argv)
{
int i;
char *p, *em = 0;
}
const char *
-default_emul_bfd_name ()
+default_emul_bfd_name (void)
{
abort ();
return NULL;
}
void
-common_emul_init ()
+common_emul_init (void)
{
this_format = this_emulation->format;
#endif
void
-print_version_id ()
+print_version_id (void)
{
static int printed;
+
if (printed)
return;
printed = 1;
-#ifdef BFD_ASSEMBLER
- 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");
+ fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"),
+ VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
}
static void
-show_usage (stream)
- FILE *stream;
+show_usage (FILE * stream)
{
fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
Sub-options [default hls]:\n\
c omit false conditionals\n\
d omit debugging directives\n\
+ g include general info\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\
- L include line debug statistics (if applicable)\n\
=FILE list to FILE (must be last sub-option)\n"));
fprintf (stream, _("\
+ --alternate initially turn on alternate macro syntax\n"));
+#ifdef HAVE_ZLIB_H
+ fprintf (stream, _("\
+ --compress-debug-sections\n\
+ compress DWARF debug sections using zlib\n"));
+ fprintf (stream, _("\
+ --nocompress-debug-sections\n\
+ don't compress DWARF debug sections\n"));
+#endif /* HAVE_ZLIB_H */
+ fprintf (stream, _("\
-D produce assembler debugging messages\n"));
fprintf (stream, _("\
+ --debug-prefix-map OLD=NEW\n\
+ map OLD to NEW in debug information\n"));
+ fprintf (stream, _("\
--defsym SYM=VAL define symbol SYM to given value\n"));
#ifdef USE_EMULATIONS
{
emulate output (default %s)\n"), def_em);
}
#endif
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+ fprintf (stream, _("\
+ --execstack require executable stack for this object\n"));
+ fprintf (stream, _("\
+ --noexecstack don't require executable stack for this object\n"));
+ fprintf (stream, _("\
+ --size-check=[error|warning]\n\
+ ELF .size directive check (default --size-check=error)\n"));
+#endif
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, _("\
+ --gstabs+ generate STABS debug info with GNU extensions\n"));
+ fprintf (stream, _("\
+ --gdwarf-2 generate DWARF2 debugging information\n"));
fprintf (stream, _("\
- --gdwarf2 generate DWARF2 debugging information\n"));
+ --gdwarf-sections generate per-function section names for DWARF line 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, _("\
-I DIR add DIR to search list for .include directives\n"));
fprintf (stream, _("\
-J don't warn about signed overflow\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"));
--warn don't suppress warnings\n"));
fprintf (stream, _("\
--fatal-warnings treat warnings as errors\n"));
+#ifdef HAVE_ITBL_CPU
fprintf (stream, _("\
--itbl INSTTBL extend instruction set to include instructions\n\
matching the specifications defined in file INSTTBL\n"));
+#endif
fprintf (stream, _("\
-w ignored\n"));
fprintf (stream, _("\
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 "-"
md_parse_option definitions in config/tc-*.c. */
static void
-parse_args (pargc, pargv)
- int *pargc;
- char ***pargv;
+parse_args (int * pargc, char *** pargv)
{
- int old_argc, new_argc;
- char **old_argv, **new_argv;
-
+ int old_argc;
+ int new_argc;
+ char ** old_argv;
+ char ** 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;
+ extern const char *md_shortopts;
static const char std_shortopts[] =
- {
- '-', 'J',
+ {
+ '-', 'J',
#ifndef WORKING_DOT_WORD
- /* -K is not meaningful if .word is not being hacked. */
- 'K',
+ /* -K is not meaningful if .word is not being hacked. */
+ 'K',
#endif
- 'L', 'M', 'R', 'W', 'Z', 'f', '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. */
- 'v',
+ /* -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'
- };
+ 'w', 'X',
+#ifdef HAVE_ITBL_CPU
+ /* New option for extending instruction set (see also --itbl below). */
+ 't', ':',
+#endif
+ '\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)
+ /* Codes used for the long options with no short synonyms. */
+ enum option_values
+ {
+ OPTION_HELP = OPTION_STD_BASE,
+ OPTION_NOCPP,
+ OPTION_STATISTICS,
+ OPTION_VERSION,
+ OPTION_DUMPCONFIG,
+ OPTION_VERBOSE,
+ OPTION_EMULATION,
+ OPTION_DEBUG_PREFIX_MAP,
+ OPTION_DEFSYM,
+ OPTION_LISTING_LHS_WIDTH,
+ OPTION_LISTING_LHS_WIDTH2,
+ OPTION_LISTING_RHS_WIDTH,
+ OPTION_LISTING_CONT_LINES,
+ OPTION_DEPFILE,
+ OPTION_GSTABS,
+ OPTION_GSTABS_PLUS,
+ OPTION_GDWARF2,
+ OPTION_GDWARF_SECTIONS,
+ OPTION_STRIP_LOCAL_ABSOLUTE,
+ OPTION_TRADITIONAL_FORMAT,
+ OPTION_WARN,
+ OPTION_TARGET_HELP,
+ OPTION_EXECSTACK,
+ OPTION_NOEXECSTACK,
+ OPTION_SIZE_CHECK,
+ OPTION_ALTERNATE,
+ OPTION_AL,
+ OPTION_HASH_TABLE_SIZE,
+ OPTION_REDUCE_MEMORY_OVERHEADS,
+ OPTION_WARN_FATAL,
+ OPTION_COMPRESS_DEBUG,
+ OPTION_NOCOMPRESS_DEBUG
+ /* When you add options here, check that they do
+ not collide with OPTION_MD_BASE. See as.h. */
+ };
+
+ static const struct option std_longopts[] =
+ {
+ /* Note: commas are placed at the start of the line rather than
+ the end of the preceding 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}
+ ,{"compress-debug-sections", no_argument, NULL, OPTION_COMPRESS_DEBUG}
+ ,{"nocompress-debug-sections", no_argument, NULL, OPTION_NOCOMPRESS_DEBUG}
+ ,{"debug-prefix-map", required_argument, NULL, OPTION_DEBUG_PREFIX_MAP}
+ ,{"defsym", required_argument, NULL, OPTION_DEFSYM}
+ ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG}
+ ,{"emulation", required_argument, NULL, OPTION_EMULATION}
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+ ,{"execstack", no_argument, NULL, OPTION_EXECSTACK}
+ ,{"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK}
+ ,{"size-check", required_argument, NULL, OPTION_SIZE_CHECK}
+#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}
+ ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS}
+ ,{"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}
+#ifdef HAVE_ITBL_CPU
/* 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},
-#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_WARN_FATAL (OPTION_STD_BASE + 19)
- {"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
+ ,{"itbl", required_argument, NULL, 't'}
+#endif
+ /* 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
always NULL terminate. */
shortopts = concat (std_shortopts, md_shortopts, (char *) NULL);
longopts = (struct option *) xmalloc (sizeof (std_longopts)
- + md_longopts_size
- + sizeof (struct option));
+ + 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,
+ 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. */
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
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;
+ new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
else
#else
case 'v':
#endif
case OPTION_VERBOSE:
print_version_id ();
+ verbose = 1;
break;
}
+ else
+ as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : "");
/* Fall through. */
case '?':
new_argv[new_argc] = NULL;
break;
+ case OPTION_TARGET_HELP:
+ md_show_usage (stdout);
+ exit (EXIT_SUCCESS);
+
case OPTION_HELP:
show_usage (stdout);
exit (EXIT_SUCCESS);
case OPTION_VERSION:
/* This output is intended to follow the GNU standards document. */
- printf (_("GNU assembler %s\n"), VERSION);
- printf (_("Copyright 2000 Free Software Foundation, Inc.\n"));
+ printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
+ printf (_("Copyright (C) 2014 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"));
+the GNU General Public License version 3 or later.\n\
+This program has absolutely no warranty.\n"));
printf (_("This assembler was configured for a target of `%s'.\n"),
TARGET_ALIAS);
exit (EXIT_SUCCESS);
#endif
exit (EXIT_SUCCESS);
+ case OPTION_COMPRESS_DEBUG:
+#ifdef HAVE_ZLIB_H
+ flag_compress_debug = 1;
+#else
+ as_warn (_("cannot compress debug sections (zlib not installed)"));
+#endif /* HAVE_ZLIB_H */
+ break;
+
+ case OPTION_NOCOMPRESS_DEBUG:
+ flag_compress_debug = 0;
+ break;
+
+ case OPTION_DEBUG_PREFIX_MAP:
+ add_debug_prefix_map (optarg);
+ break;
+
case OPTION_DEFSYM:
{
char *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;
}
break;
- case OPTION_INSTTBL:
+#ifdef HAVE_ITBL_CPU
case 't':
{
/* optarg is the name of the file containing the instruction
if (optarg == NULL)
{
- as_warn (_("No file name following -t option\n"));
+ as_warn (_("no file name following -t option"));
break;
}
- n = (struct itbl_file_list *) xmalloc (sizeof *n);
+ n = xmalloc (sizeof * n);
n->next = itbl_files;
n->name = optarg;
itbl_files = n;
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);
- }
+ as_fatal (_("failed to read instruction table %s\n"),
+ itbl_files->name);
}
break;
+#endif
case OPTION_DEPFILE:
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;
debug_type = DEBUG_DWARF2;
break;
+ case OPTION_GDWARF_SECTIONS:
+ flag_dwarf_sections = TRUE;
+ break;
+
case 'J':
flag_signed_overflow_ok = 1;
break;
flag_warn_displacement = 1;
break;
#endif
-
case 'L':
flag_keep_locals = 1;
break;
case OPTION_LISTING_LHS_WIDTH2:
{
int tmp = atoi (optarg);
+
if (tmp > listing_lhs_width)
listing_lhs_width_second = tmp;
}
flag_fatal_warnings = 1;
break;
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+ case OPTION_EXECSTACK:
+ flag_execstack = 1;
+ flag_noexecstack = 0;
+ break;
+
+ case OPTION_NOEXECSTACK:
+ flag_noexecstack = 1;
+ flag_execstack = 0;
+ break;
+
+ case OPTION_SIZE_CHECK:
+ if (strcasecmp (optarg, "error") == 0)
+ flag_size_check = size_check_error;
+ else if (strcasecmp (optarg, "warning") == 0)
+ flag_size_check = size_check_warning;
+ else
+ as_fatal (_("Invalid --size-check= option: `%s'"), optarg);
+ break;
+#endif
case 'Z':
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 == '-')
+ 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 'd':
listing |= LISTING_NODEBUG;
break;
+ case 'g':
+ listing |= LISTING_GENERAL;
+ break;
case 'h':
listing |= LISTING_HLL;
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;
+ }
}
}
*pargc = new_argc;
*pargv = new_argv;
+
+#ifdef md_after_parse_args
+ md_after_parse_args ();
+#endif
}
-static long start_time;
+static void
+dump_statistics (void)
+{
+#ifdef HAVE_SBRK
+ char *lim = (char *) sbrk (0);
+#endif
+ 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);
+#ifdef HAVE_SBRK
+ fprintf (stderr, _("%s: data size %ld\n"),
+ myname, (long) (lim - start_sbrk));
+#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
+}
+
+static void
+close_output_file (void)
+{
+ output_file_close (out_file_name);
+ if (!keep_it)
+ unlink_if_ordinary (out_file_name);
+}
+
+/* The interface between the macro code and gas expression handling. */
+
+static size_t
+macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val)
+{
+ char *hold;
+ expressionS ex;
+
+ sb_terminate (in);
+
+ hold = input_line_pointer;
+ input_line_pointer = in->ptr + idx;
+ expression_and_evaluate (&ex);
+ idx = input_line_pointer - in->ptr;
+ input_line_pointer = hold;
+
+ if (ex.X_op != O_constant)
+ as_bad ("%s", emsg);
+
+ *val = ex.X_add_number;
+
+ return idx;
+}
+\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).
+
+ 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 (int argc, char ** argv)
+{
+ int saw_a_file = 0;
+#ifndef OBJ_MACH_O
+ flagword applicable;
+#endif
+
+ need_pass_2 = 0;
+
+#ifndef OBJ_MACH_O
+ /* Create the standard sections, and those the assembler uses
+ internally. */
+ 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);
+ bfd_set_section_flags (stdoutput, text_section,
+ applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
+ | SEC_CODE | SEC_READONLY));
+ bfd_set_section_flags (stdoutput, data_section,
+ 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;
+#endif
+ subseg_new (BFD_ABS_SECTION_NAME, 0);
+ subseg_new (BFD_UND_SECTION_NAME, 0);
+ reg_section = subseg_new ("*GAS `reg' section*", 0);
+ expr_section = subseg_new ("*GAS `expr' section*", 0);
+
+#ifndef OBJ_MACH_O
+ subseg_set (text_section, 0);
+#endif
+
+ /* This may add symbol table entries, which requires having an open BFD,
+ and sections already created. */
+ md_begin ();
+
+#ifdef USING_CGEN
+ gas_cgen_begin ();
+#endif
+#ifdef obj_begin
+ obj_begin ();
+#endif
+
+ /* Skip argv[0]. */
+ argv++;
+ argc--;
+
+ while (argc--)
+ {
+ if (*argv)
+ { /* Is it a file-name argument? */
+ PROGRESS (1);
+ saw_a_file++;
+ /* argv->"" if stdin desired, else->filename. */
+ read_a_source_file (*argv);
+ }
+ argv++; /* Completed that argv. */
+ }
+ if (!saw_a_file)
+ read_a_source_file ("");
+}
+\f
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char ** argv)
{
- int macro_alternate;
+ char ** argv_orig = argv;
+
int macro_strip_at;
- int keep_it;
start_time = get_run_time ();
+#ifdef HAVE_SBRK
+ start_sbrk = (char *) sbrk (0);
+#endif
#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)
- {
-#ifdef BFD_ASSEMBLER
- extern long _bfd_chunksize;
- _bfd_chunksize = 64;
-#endif
- chunksize = 64;
- }
+ chunksize = 64;
#ifdef HOST_SPECIAL_INIT
HOST_SPECIAL_INIT (argc, 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 ();
+ /* It has to be called after dump_statistics (). */
+ xatexit (close_output_file);
+
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);
+ 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
+ gas_assert (stdoutput != 0);
+
+ dot_symbol_init ();
#ifdef tc_init_after_args
tc_init_after_args ();
itbl_init ();
+ dwarf2_init ();
+
+ local_symbol_make (".gasversion.", absolute_section,
+ BFD_VERSION / 10000UL, &predefined_address_frag);
+
/* Now that we have fully initialized, and have created the output
file, define any symbols requested by --defsym command line
arguments. */
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 (seen_at_least_1_file ()
- && (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_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 ();
-
- 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;
-
- 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).
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+ if ((flag_execstack || flag_noexecstack)
+ && OUTPUT_FLAVOR == bfd_target_elf_flavour)
+ {
+ segT gnustack;
- Note the un*x semantics: there is only 1 logical input file, but it
- may be a catenation of many 'physical' input files. */
+ gnustack = subseg_new (".note.GNU-stack", 0);
+ bfd_set_section_flags (stdoutput, gnustack,
+ SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
-static void
-perform_an_assembly_pass (argc, argv)
- 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;
+ /* If we've been collecting dwarf2 .debug_line info, either for
+ assembly debugging or on behalf of the compiler, emit it now. */
+ dwarf2_finish ();
-#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);
- 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);
- bfd_set_section_flags (stdoutput, text_section,
- applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
- | SEC_CODE | SEC_READONLY));
- bfd_set_section_flags (stdoutput, data_section,
- 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);
- subseg_new (BFD_UND_SECTION_NAME, 0);
- reg_section = subseg_new ("*GAS `reg' section*", 0);
- expr_section = subseg_new ("*GAS `expr' section*", 0);
+ /* If we constructed dwarf2 .eh_frame info, either via .cfi
+ directives from the user or by the backend, emit it now. */
+ cfi_finish ();
-#endif /* BFD_ASSEMBLER */
+ keep_it = 0;
+ if (seen_at_least_1_file ())
+ {
+ int n_warns, n_errs;
+ char warn_msg[50];
+ char err_msg[50];
- subseg_set (text_section, 0);
+ write_object_file ();
- /* This may add symbol table entries, which requires having an open BFD,
- and sections already created, in BFD_ASSEMBLER mode. */
- md_begin ();
+ n_warns = had_warnings ();
+ n_errs = had_errors ();
-#ifdef obj_begin
- obj_begin ();
-#endif
+ if (n_warns == 1)
+ sprintf (warn_msg, _("%d warning"), n_warns);
+ else
+ sprintf (warn_msg, _("%d warnings"), n_warns);
+ if (n_errs == 1)
+ sprintf (err_msg, _("%d error"), n_errs);
+ else
+ sprintf (err_msg, _("%d errors"), n_errs);
- /* Skip argv[0]. */
- argv++;
- argc--;
+ if (flag_fatal_warnings && n_warns != 0)
+ {
+ if (n_errs == 0)
+ as_bad (_("%s, treating warnings as errors"), warn_msg);
+ n_errs += n_warns;
+ }
- while (argc--)
- {
- if (*argv)
- { /* Is it a file-name argument? */
- PROGRESS (1);
- saw_a_file++;
- /* argv->"" if stdin desired, else->filename */
- read_a_source_file (*argv);
+ if (n_errs == 0)
+ keep_it = 1;
+ else if (flag_always_generate_output)
+ {
+ /* The -Z flag indicates that an object file should be generated,
+ regardless of warnings and errors. */
+ keep_it = 1;
+ fprintf (stderr, _("%s, %s, generating bad object file\n"),
+ err_msg, warn_msg);
}
- argv++; /* completed that argv */
}
- if (!saw_a_file)
- read_a_source_file ("");
-}
-/* The interface between the macro code and gas expression handling. */
+ fflush (stderr);
-static int
-macro_expr (emsg, idx, in, val)
- const char *emsg;
- int idx;
- sb *in;
- int *val;
-{
- char *hold;
- expressionS ex;
+#ifndef NO_LISTING
+ listing_print (listing_filename, argv_orig);
+#endif
- sb_terminate (in);
+ input_scrub_end ();
- hold = input_line_pointer;
- input_line_pointer = in->ptr + idx;
- expression (&ex);
- idx = input_line_pointer - in->ptr;
- input_line_pointer = hold;
+ END_PROGRESS (myname);
- if (ex.X_op != O_constant)
- as_bad ("%s", emsg);
+ /* 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);
- *val = (int) ex.X_add_number;
+ /* Only generate dependency file if assembler was successful. */
+ print_dependencies ();
- return idx;
+ xexit (EXIT_SUCCESS);
}
projects / platform / upstream / binutils.git / blobdiff