/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
+ 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.
02111-1307, 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.
- */
+ 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"
#include "output-file.h"
#include "sb.h"
#include "macro.h"
+#include "dwarf2dbg.h"
+#include "dw2gencfi.h"
+
+#ifdef BFD_ASSEMBLER
+#include "bfdver.h"
+#endif
#ifdef HAVE_ITBL_CPU
#include "itbl-ops.h"
#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
+
+/* Keep a record of the itbl files we read in. */
+struct itbl_file_list
+{
+ struct itbl_file_list *next;
+ char *name;
+};
+
+/* 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_NONE;
+enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
+int use_gnu_debug_info_extensions = 0;
/* 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
+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;
-};
+#ifdef BFD_ASSEMBLER
+segT reg_section;
+segT expr_section;
+segT text_section;
+segT data_section;
+segT bss_section;
+#endif
+
+/* Name of listing file. */
+static char *listing_filename = NULL;
static struct defsym_list *defsyms;
-/* Keep a record of the itbl files we read in. */
+static struct itbl_file_list *itbl_files;
-struct itbl_file_list {
- struct itbl_file_list *next;
- char *name;
-};
+static long start_time;
-static struct itbl_file_list *itbl_files;
\f
#ifdef USE_EMULATIONS
#define EMULATION_ENVIRON "AS_EMULATION"
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);
+ VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
#else
fprintf (stderr, _("GNU assembler version %s (%s)"), VERSION, TARGET_ALIAS);
#endif
}
static void
-show_usage (stream)
- FILE *stream;
+show_usage (FILE * stream)
{
fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
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, _("\
fprintf (stream, _("\
emulate output (default %s)\n"), def_em);
}
+#endif
+#if defined BFD_ASSEMBLER && (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"));
#endif
fprintf (stream, _("\
-f skip whitespace and comment preprocessing\n"));
fprintf (stream, _("\
--gstabs generate stabs debugging information\n"));
fprintf (stream, _("\
+ --gstabs+ generate stabs debug info with GNU extensions\n"));
+ fprintf (stream, _("\
--gdwarf2 generate DWARF2 debugging information\n"));
fprintf (stream, _("\
--help show this message and exit\n"));
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;
- static const char std_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', ':',
+ 'L', 'M', 'R', 'W', 'Z', 'a', ':', ':', 'D', 'f', '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) */
+ /* 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)
+ /* 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_DEFSYM,
+ OPTION_INSTTBL,
+ OPTION_LISTING_LHS_WIDTH,
+ OPTION_LISTING_LHS_WIDTH2,
+ OPTION_LISTING_RHS_WIDTH,
+ OPTION_LISTING_CONT_LINES,
+ OPTION_DEPFILE,
+ OPTION_GSTABS,
+ OPTION_GSTABS_PLUS,
+ OPTION_STRIP_LOCAL_ABSOLUTE,
+ OPTION_TRADITIONAL_FORMAT,
+ OPTION_GDWARF2,
+ OPTION_WARN,
+ OPTION_TARGET_HELP,
+ OPTION_EXECSTACK,
+ OPTION_NOEXECSTACK,
+ OPTION_WARN_FATAL
+ };
+
+ static const struct option std_longopts[] =
+ {
{"help", no_argument, NULL, OPTION_HELP},
+ /* getopt allows abbreviations, so we do this to stop it from
+ treating -k as an abbreviation for --keep-locals. Some
+ ports use -k to enable PIC assembly. */
+ {"keep-locals", no_argument, NULL, 'L'},
{"keep-locals", no_argument, NULL, 'L'},
{"mri", no_argument, NULL, 'M'},
-#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
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-lhs-width2", required_argument, NULL, OPTION_LISTING_LHS_WIDTH2},
{"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)
+ {"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS},
{"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)
+#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+ {"execstack", no_argument, NULL, OPTION_EXECSTACK},
+ {"noexecstack", no_argument, NULL, OPTION_NOEXECSTACK},
+#endif
{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
/* When you add options here, check that they do not collide with
OPTION_MD_BASE. See as.h. */
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));
+ longopts = 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,
+ 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_argv = *pargv;
/* Initialize a new argv that contains no options. */
- new_argv = (char **) xmalloc (sizeof (char *) * (old_argc + 1));
+ new_argv = xmalloc (sizeof (char *) * (old_argc + 1));
new_argv[0] = old_argv[0];
new_argc = 1;
new_argv[new_argc] = NULL;
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
#endif
case OPTION_VERBOSE:
print_version_id ();
+ verbose = 1;
break;
}
/* Fall through. */
new_argv[new_argc++] = optarg;
new_argv[new_argc] = NULL;
break;
-
+
case OPTION_TARGET_HELP:
- md_show_usage (stdout);
- exit (EXIT_SUCCESS);
+ md_show_usage (stdout);
+ exit (EXIT_SUCCESS);
case OPTION_HELP:
show_usage (stdout);
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);
- printf (_("Copyright 2000 Free Software Foundation, Inc.\n"));
+#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"));
#else
i = strtol (s, (char **) NULL, 0);
#endif
- n = (struct defsym_list *) xmalloc (sizeof *n);
+ n = xmalloc (sizeof *n);
n->next = defsyms;
n->name = optarg;
n->value = i;
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;
start_dependencies (optarg);
break;
+ case OPTION_GSTABS_PLUS:
+ use_gnu_debug_info_extensions = 1;
+ /* Fall through. */
case OPTION_GSTABS:
debug_type = DEBUG_STABS;
break;
flag_warn_displacement = 1;
break;
#endif
-
case 'L':
flag_keep_locals = 1;
break;
flag_fatal_warnings = 1;
break;
+#if defined BFD_ASSEMBLER && (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;
+#endif
case 'Z':
flag_always_generate_output = 1;
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 - (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
+}
+
+/* The interface between the macro code and gas expression handling. */
+
+static int
+macro_expr (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;
+}
+\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;
+#ifdef BFD_ASSEMBLER
+ flagword applicable;
+#endif
+
+ need_pass_2 = 0;
+
+#ifndef BFD_ASSEMBLER
+#ifdef MANY_SEGMENTS
+ {
+ unsigned int i;
+ for (i = SEG_E0; i < SEG_UNKNOWN; i++)
+ segment_info[i].fix_root = 0;
+ }
+ /* Create the three fixed ones. */
+ {
+ segT seg;
+
+#ifdef TE_APOLLO
+ seg = subseg_new (".wtext", 0);
+#else
+ seg = subseg_new (".text", 0);
+#endif
+ assert (seg == SEG_E0);
+ seg = subseg_new (".data", 0);
+ assert (seg == SEG_E1);
+ seg = subseg_new (".bss", 0);
+ assert (seg == SEG_E2);
+#ifdef TE_APOLLO
+ create_target_segments ();
+#endif
+ }
+
+#else /* not MANY_SEGMENTS. */
+ text_fix_root = NULL;
+ data_fix_root = NULL;
+ bss_fix_root = NULL;
+#endif /* not MANY_SEGMENTS. */
+#else /* BFD_ASSEMBLER. */
+ /* Create the standard sections, and those the assembler uses
+ internally. */
+ text_section = subseg_new (TEXT_SECTION_NAME, 0);
+ 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);
+
+#endif /* BFD_ASSEMBLER. */
+
+ subseg_set (text_section, 0);
+
+ /* This may add symbol table entries, which requires having an open BFD,
+ and sections already created, in BFD_ASSEMBLER mode. */
+ 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;
int macro_strip_at;
#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);
md_end ();
#endif
+#if defined BFD_ASSEMBLER && (defined OBJ_ELF || defined OBJ_MAYBE_ELF)
+ if ((flag_execstack || flag_noexecstack)
+ && OUTPUT_FLAVOR == bfd_target_elf_flavour)
+ {
+ segT gnustack;
+
+ gnustack = subseg_new (".note.GNU-stack", 0);
+ bfd_set_section_flags (stdoutput, gnustack,
+ SEC_READONLY | (flag_execstack ? SEC_CODE : 0));
+
+ }
+#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 we constructed dwarf2 .eh_frame info, either via .cfi
+ directives from the user or by the backend, emit it now. */
+ cfi_finish ();
+
if (seen_at_least_1_file ()
&& (flag_always_generate_output || had_errors () == 0))
keep_it = 1;
listing_print (listing_filename);
#endif
-#ifndef OBJ_VMS /* does its own file handling */
+#ifndef OBJ_VMS /* Does its own file handling. */
#ifndef BFD_ASSEMBLER
if (keep_it)
#endif
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).
-
- 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;
-{
- int saw_a_file = 0;
-#ifdef BFD_ASSEMBLER
- flagword applicable;
-#endif
-
- need_pass_2 = 0;
-
-#ifndef BFD_ASSEMBLER
-#ifdef MANY_SEGMENTS
- {
- unsigned int i;
- for (i = SEG_E0; i < SEG_UNKNOWN; i++)
- segment_info[i].fix_root = 0;
- }
- /* Create the three fixed ones. */
- {
- segT seg;
-
-#ifdef TE_APOLLO
- seg = subseg_new (".wtext", 0);
-#else
- seg = subseg_new (".text", 0);
-#endif
- assert (seg == SEG_E0);
- seg = subseg_new (".data", 0);
- assert (seg == SEG_E1);
- seg = subseg_new (".bss", 0);
- assert (seg == SEG_E2);
-#ifdef TE_APOLLO
- create_target_segments ();
-#endif
- }
-
-#else /* not MANY_SEGMENTS */
- text_fix_root = NULL;
- data_fix_root = NULL;
- bss_fix_root = NULL;
-#endif /* not MANY_SEGMENTS */
-#else /* BFD_ASSEMBLER */
- /* Create the standard sections, and those the assembler uses
- internally. */
- text_section = subseg_new (TEXT_SECTION_NAME, 0);
- 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);
-
-#endif /* BFD_ASSEMBLER */
-
- subseg_set (text_section, 0);
-
- /* This may add symbol table entries, which requires having an open BFD,
- and sections already created, in BFD_ASSEMBLER mode. */
- md_begin ();
-
-#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 ("");
-}
-
-/* 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;
-}
projects / deliverable / binutils-gdb.git / blobdiff