X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fas.c;h=727a1dd40ee58e5ac1c11a4e24185bfa324a286f;hb=9622b051cf36414e121c0c2e63c099e588801e0e;hp=4850e866bb145fabbc06448bcd2b0de703141d7e;hpb=7e047ac2c1fcb16f721c715a48c8d4b8b4776485;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/as.c b/gas/as.c index 4850e866bb..727a1dd40e 100644 --- a/gas/as.c +++ b/gas/as.c @@ -1,5 +1,7 @@ /* as.c - GAS main program. - Copyright (C) 1987, 1990, 1991, 1992, 1994 Free Software Foundation, Inc. + Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, + 1999, 2000, 2001, 2002, 2003, 2004, 2005 + Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. @@ -14,26 +16,22 @@ 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. */ - -/* - * 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. - * - */ + along with GAS; see the file COPYING. If not, write to the Free + 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" -#include "libiberty.h" #define COMMON @@ -42,93 +40,106 @@ #include "output-file.h" #include "sb.h" #include "macro.h" +#include "dwarf2dbg.h" +#include "dw2gencfi.h" +#include "hash.h" +#include "bfdver.h" -static void perform_an_assembly_pass PARAMS ((int argc, char **argv)); -static int macro_expr PARAMS ((const char *, int, sb *, int *)); +#ifdef HAVE_ITBL_CPU +#include "itbl-ops.h" +#else +#define itbl_parse(itbl_file) 1 +#define itbl_init() +#endif -int listing; /* true if a listing is wanted */ +#ifdef HAVE_SBRK +#ifdef NEED_DECLARATION_SBRK +extern PTR sbrk (); +#endif +#endif -static char *listing_filename = NULL; /* Name of listing file. */ +#ifdef USING_CGEN +/* Perform any cgen specific initialisation for gas. */ +extern void gas_cgen_begin (void); +#endif -/* Maximum level of macro nesting. */ +/* Keep a record of the itbl files we read in. */ +struct itbl_file_list +{ + struct itbl_file_list *next; + char *name; +}; -int max_macro_nest = 100; +/* 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; +}; -char *myname; /* argv[0] */ -#ifdef BFD_ASSEMBLER -segT reg_section, expr_section; -segT text_section, data_section, bss_section; -#endif - -void -print_version_id () -{ - static int printed; - if (printed) - return; - printed = 1; +/* True if a listing is wanted. */ +int listing; + +/* Type of debugging to generate. */ +enum debug_info_type debug_type = DEBUG_UNSPECIFIED; +int use_gnu_debug_info_extensions = 0; - fprintf (stderr, "GNU assembler version %s (%s)", GAS_VERSION, TARGET_ALIAS); -#ifdef BFD_ASSEMBLER - fprintf (stderr, ", using BFD version %s", BFD_VERSION); +#ifndef MD_DEBUG_FORMAT_SELECTOR +#define MD_DEBUG_FORMAT_SELECTOR NULL #endif - fprintf (stderr, "\n"); -} +static enum debug_info_type (*md_debug_format_selector) (int *) = MD_DEBUG_FORMAT_SELECTOR; -void -show_usage (stream) - FILE *stream; -{ - fprintf (stream, "Usage: %s [option...] [asmfile...]\n", myname); +/* Maximum level of macro nesting. */ +int max_macro_nest = 100; - fprintf (stream, "\ -Options:\n\ --a[sub-option...] turn on listings\n\ - Sub-options [default hls]:\n\ - d omit debugging directives\n\ - h include high-level source\n\ - l include assembly\n\ - n omit forms processing\n\ - s include symbols\n\ - =file set listing file name (must be last sub-option)\n"); - fprintf (stream, "\ --D produce assembler debugging messages\n\ --f skip whitespace and comment preprocessing\n\ ---help show this message and exit\n\ --I DIR add DIR to search list for .include directives\n\ --J don't warn about signed overflow\n\ --K warn when differences altered for long displacements\n\ --L keep local symbols (starting with `L')\n"); - fprintf (stream, "\ --M,--mri assemble in MRI compatibility mode\n\ --nocpp ignored\n\ --o OBJFILE name the object-file output OBJFILE (default a.out)\n\ --R fold data section into text section\n\ ---statistics print maximum bytes and total seconds used\n\ ---version print assembler version number and exit\n\ --W suppress warnings\n\ --w ignored\n\ --X ignored\n\ --Z generate object file even after errors\n"); +/* argv[0] */ +static char * myname; - md_show_usage (stream); -} +/* 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; + +/* Enable verbose mode. */ +int verbose = 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; +static struct itbl_file_list *itbl_files; + +static long start_time; + +static int flag_macro_alternate; + + #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 const char *emulation_name; static struct emulation *const emulations[] = { EMULATIONS }; static const int n_emulations = sizeof (emulations) / sizeof (emulations[0]); static void -select_emulation_mode (argc, argv) - int argc; - char **argv; +select_emulation_mode (int argc, char **argv) { int i; char *p, *em = 0; @@ -144,10 +155,10 @@ select_emulation_mode (argc, argv) if (p) p++; else - p = argv[i+1]; + p = argv[i + 1]; if (!p || !*p) - as_fatal ("missing emulation mode name"); + as_fatal (_("missing emulation mode name")); em = p; do_default: @@ -162,7 +173,7 @@ select_emulation_mode (argc, argv) if (!strcmp (emulations[i]->name, em)) break; if (i == n_emulations) - as_fatal ("unrecognized emulation name `%s'", em); + as_fatal (_("unrecognized emulation name `%s'"), em); this_emulation = emulations[i]; } else @@ -172,13 +183,14 @@ select_emulation_mode (argc, argv) } 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; @@ -199,83 +211,304 @@ common_emul_init () } #endif -/* - * 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 - */ - void -parse_args (pargc, pargv) - int *pargc; - char ***pargv; +print_version_id (void) +{ + static int printed; + + if (printed) + return; + printed = 1; + + fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"), + VERSION, TARGET_ALIAS, BFD_VERSION_STRING); +} + +static void +show_usage (FILE * stream) { - int old_argc, new_argc; - char **old_argv, **new_argv; + 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")); + + fprintf (stream, _("\ + --alternate initially turn on alternate macro syntax\n")); + fprintf (stream, _("\ + -D produce assembler debugging messages\n")); + fprintf (stream, _("\ + --defsym SYM=VAL define symbol SYM to given value\n")); +#ifdef USE_EMULATIONS + { + int i; + char *def_em; + + 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 +#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")); +#endif + fprintf (stream, _("\ + -f skip whitespace and comment preprocessing\n")); + fprintf (stream, _("\ + -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, _("\ + --hash-size= set the hash table size close to \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, _("\ + --reduce-memory-overheads \n\ + prefer smaller memory use at the cost of longer\n\ + assembly times\n")); + fprintf (stream, _("\ + --statistics print various measured statistics from execution\n")); + fprintf (stream, _("\ + --strip-local-absolute strip local absolute symbols\n")); + fprintf (stream, _("\ + --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")); + 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); +} + +/* 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 (int * pargc, char *** pargv) +{ + 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', - '\0' - }; + '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}, - {"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}, + /* 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_GDWARF2, + OPTION_STRIP_LOCAL_ABSOLUTE, + OPTION_TRADITIONAL_FORMAT, + OPTION_WARN, + OPTION_TARGET_HELP, + OPTION_EXECSTACK, + OPTION_NOEXECSTACK, + OPTION_ALTERNATE, + OPTION_AL, + OPTION_HASH_TABLE_SIZE, + OPTION_REDUCE_MEMORY_OVERHEADS, + OPTION_WARN_FATAL + /* When you add options here, check that they do + not collide with OPTION_MD_BASE. See as.h. */ + }; + + static const struct option std_longopts[] = + { + /* Note: commas are placed at the start of the line rather than + the end of the preceeding line so that it is simpler to + selectively add and remove lines from this list. */ + {"alternate", no_argument, NULL, OPTION_ALTERNATE} + /* The entry for "a" is here to prevent getopt_long_only() from + considering that -a is an abbreviation for --alternate. This is + necessary because -a= is a valid switch but getopt would + normally reject it since --alternate does not take an argument. */ + ,{"a", optional_argument, NULL, 'a'} + /* Handle -al=. */ + ,{"al", optional_argument, NULL, OPTION_AL} + ,{"defsym", required_argument, NULL, OPTION_DEFSYM} + ,{"dump-config", no_argument, NULL, OPTION_DUMPCONFIG} + ,{"emulation", required_argument, NULL, OPTION_EMULATION} +#if defined 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} + ,{"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} + ,{"gen-debug", no_argument, NULL, 'g'} + ,{"gstabs", no_argument, NULL, OPTION_GSTABS} + ,{"gstabs+", no_argument, NULL, OPTION_GSTABS_PLUS} + ,{"hash-size", required_argument, NULL, OPTION_HASH_TABLE_SIZE} + ,{"help", no_argument, NULL, OPTION_HELP} + /* New option for extending instruction set (see also -t above). + The "-t file" or "--itbl file" option extends the basic set of + 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} + /* 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 dependent list. */ + /* 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); + 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); + 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 = xmalloc (sizeof (char *) * (old_argc + 1)); new_argv[0] = old_argv[0]; new_argc = 1; new_argv[new_argc] = NULL; @@ -299,7 +532,7 @@ parse_args (pargc, pargv) 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 @@ -308,16 +541,19 @@ parse_args (pargc, pargv) 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; } - /*FALLTHRU*/ + else + as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : ""); + /* Fall through. */ case '?': exit (EXIT_FAILURE); @@ -329,6 +565,10 @@ parse_args (pargc, pargv) 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); @@ -340,31 +580,126 @@ parse_args (pargc, pargv) flag_print_statistics = 1; break; + case OPTION_STRIP_LOCAL_ABSOLUTE: + flag_strip_local_absolute = 1; + break; + + case OPTION_TRADITIONAL_FORMAT: + flag_traditional_format = 1; + break; + case OPTION_VERSION: - print_version_id (); + /* This output is intended to follow the GNU standards document. */ + printf (_("GNU assembler %s\n"), BFD_VERSION_STRING); + printf (_("Copyright 2005 Free Software Foundation, Inc.\n")); + printf (_("\ +This program is free software; you may redistribute it under the terms of\n\ +the GNU General Public License. This program has absolutely no warranty.\n")); + printf (_("This assembler was configured for a target of `%s'.\n"), + TARGET_ALIAS); exit (EXIT_SUCCESS); case OPTION_EMULATION: #ifdef USE_EMULATIONS if (strcmp (optarg, this_emulation->name)) - as_fatal ("multiple emulation names specified"); + as_fatal (_("multiple emulation names specified")); #else - as_fatal ("emulations not handled in this configuration"); + as_fatal (_("emulations not handled in this configuration")); #endif break; case OPTION_DUMPCONFIG: - fprintf (stderr, "alias = %s\n", TARGET_ALIAS); - fprintf (stderr, "canonical = %s\n", TARGET_CANONICAL); - fprintf (stderr, "cpu-type = %s\n", TARGET_CPU); + fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS); + fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL); + fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU); #ifdef TARGET_OBJ_FORMAT - fprintf (stderr, "format = %s\n", TARGET_OBJ_FORMAT); + fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT); #endif #ifdef TARGET_FORMAT - fprintf (stderr, "bfd-target = %s\n", TARGET_FORMAT); + fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT); #endif exit (EXIT_SUCCESS); + case OPTION_DEFSYM: + { + char *s; + valueT i; + struct defsym_list *n; + + for (s = optarg; *s != '\0' && *s != '='; s++) + ; + if (*s == '\0') + as_fatal (_("bad defsym; format is --defsym name=value")); + *s++ = '\0'; + i = bfd_scan_vma (s, (const char **) NULL, 0); + n = xmalloc (sizeof *n); + n->next = defsyms; + n->name = optarg; + n->value = i; + defsyms = n; + } + break; + + case OPTION_INSTTBL: + case 't': + { + /* optarg is the name of the file containing the instruction + formats, opcodes, register names, etc. */ + struct itbl_file_list *n; + + if (optarg == NULL) + { + as_warn (_("no file name following -t option")); + break; + } + + n = 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 '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; + + case OPTION_GDWARF2: + debug_type = DEBUG_DWARF2; + break; + case 'J': flag_signed_overflow_ok = 1; break; @@ -374,13 +709,35 @@ parse_args (pargc, pargv) 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': @@ -391,17 +748,66 @@ parse_args (pargc, pargv) 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; + +#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; +#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; + while (*optarg) { switch (*optarg) { + case 'c': + listing |= LISTING_NOCOND; + break; case 'd': listing |= LISTING_NODEBUG; break; @@ -411,6 +817,9 @@ parse_args (pargc, pargv) case 'l': listing |= LISTING_LISTING; break; + case 'm': + listing |= LISTING_MACEXP; + break; case 'n': listing |= LISTING_NOFORM; break; @@ -418,13 +827,11 @@ parse_args (pargc, pargv) listing |= LISTING_SYMBOLS; break; case '=': - listing_filename = strdup (optarg + 1); - if (listing_filename == NULL) - as_fatal ("virtual memory exhausted"); + listing_filename = xstrdup (optarg + 1); optarg += strlen (listing_filename); break; default: - as_fatal ("invalid listing option `%c'", *optarg); + as_fatal (_("invalid listing option `%c'"), *optarg); break; } optarg++; @@ -435,8 +842,8 @@ parse_args (pargc, pargv) break; case 'D': - /* DEBUG is implemented: it debugs different */ - /* things from other people's assemblers. */ + /* DEBUG is implemented: it debugs different + things from other people's assemblers. */ flag_debug = 1; break; @@ -445,26 +852,41 @@ parse_args (pargc, pargv) break; case 'I': - { /* Include file directory */ - char *temp = strdup (optarg); - if (!temp) - as_fatal ("virtual memory exhausted"); + { /* Include file directory. */ + char *temp = xstrdup (optarg); + add_include_dir (temp); break; } case 'o': - out_file_name = strdup (optarg); - if (!out_file_name) - as_fatal ("virtual memory exhausted"); + out_file_name = xstrdup (optarg); break; case 'w': break; case 'X': - /* -X means treat warnings as errors */ + /* -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; + } } } @@ -473,15 +895,163 @@ parse_args (pargc, pargv) *pargc = new_argc; *pargv = new_argv; + +#ifdef md_after_parse_args + md_after_parse_args (); +#endif } -int -main (argc, argv) - int argc; - char **argv; +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 +} + +#ifndef OBJ_VMS +static void +close_output_file (void) +{ + output_file_close (out_file_name); +} +#endif + +/* The interface between the macro code and gas expression handling. */ + +static int +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_and_evaluate (&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; +} + +/* 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; + flagword applicable; + + need_pass_2 = 0; + + /* 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); + + subseg_set (text_section, 0); + + /* 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 (""); +} + + +int +main (int argc, char ** argv) +{ + int macro_strip_at; int keep_it; - long start_time = get_run_time (); + + 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); @@ -490,6 +1060,8 @@ main (argc, argv) myname = argv[0]; xmalloc_set_program_name (myname); + expandargv (&argc, &argv); + START_PROGRESS (myname, 0); #ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME @@ -499,230 +1071,137 @@ main (argc, argv) out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME; hex_init (); -#ifdef BFD_ASSEMBLER bfd_init (); -#endif + bfd_set_error_program_name (myname); #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 (); read_begin (); - parse_args (&argc, &argv); input_scrub_begin (); expr_begin (); - macro_init (0, flag_mri, macro_expr); + +#ifndef OBJ_VMS /* Does its own file handling. */ + /* It has to be called after dump_statistics (). */ + xatexit (close_output_file); +#endif + + if (flag_print_statistics) + xatexit (dump_statistics); + + macro_strip_at = 0; +#ifdef TC_I960 + macro_strip_at = flag_mri; +#endif + + macro_init (flag_macro_alternate, flag_mri, macro_strip_at, macro_expr); PROGRESS (1); -#ifdef BFD_ASSEMBLER output_file_create (out_file_name); assert (stdoutput != 0); -#endif #ifdef tc_init_after_args tc_init_after_args (); #endif - PROGRESS (1); - - perform_an_assembly_pass (argc, argv); /* Assemble it. */ -#ifdef TC_I960 - brtab_emit (); -#endif -/* start-sanitize-rce */ -#ifdef TC_RCE - dump_literals(0); -#endif -/* end-sanitize-rce */ + itbl_init (); - if (seen_at_least_1_file () - && !((had_warnings () && flag_always_generate_output) - || had_errors () > 0)) - keep_it = 1; - else - keep_it = 0; + /* 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; + } - if (keep_it) - write_object_file (); + PROGRESS (1); -#ifndef NO_LISTING - listing_print (listing_filename); -#endif + /* Assemble it. */ + perform_an_assembly_pass (argc, argv); -#ifndef OBJ_VMS /* does its own file handling */ -#ifndef BFD_ASSEMBLER - if (keep_it) -#endif - output_file_close (out_file_name); -#endif + cond_finish_check (-1); - if (!keep_it) - unlink (out_file_name); - - input_scrub_end (); #ifdef md_end md_end (); #endif - END_PROGRESS (myname); - - if (flag_print_statistics) +#if defined OBJ_ELF || defined OBJ_MAYBE_ELF + if ((flag_execstack || flag_noexecstack) + && OUTPUT_FLAVOR == bfd_target_elf_flavour) { - extern char **environ; -#ifdef HAVE_SBRK - char *lim = (char *) sbrk (0); -#endif - long run_time = get_run_time () - start_time; + segT gnustack; - 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 + gnustack = subseg_new (".note.GNU-stack", 0); + bfd_set_section_flags (stdoutput, gnustack, + SEC_READONLY | (flag_execstack ? SEC_CODE : 0)); + } - - /* Use exit instead of return, because under VMS environments they - may not place the same interpretation on the value given. */ - if ((had_warnings () && flag_always_generate_output) - || had_errors () > 0) - exit (EXIT_FAILURE); - exit (EXIT_SUCCESS); -} - - -/* 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 -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 - } + /* If we constructed dwarf2 .eh_frame info, either via .cfi + directives from the user or by the backend, emit it now. */ + cfi_finish (); -#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", 0); - data_section = subseg_new (".data", 0); - bss_section = subseg_new (".bss", 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)); - /* @@ 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)); - 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 (seen_at_least_1_file () + && (flag_always_generate_output || had_errors () == 0)) + keep_it = 1; + else + keep_it = 0; -#endif /* BFD_ASSEMBLER */ + /* 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 (); - subseg_set (text_section, 0); + if (keep_it) + 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 (); +#ifndef NO_LISTING + listing_print (listing_filename); +#endif - argv++; /* skip argv[0] */ - argc--; /* skip argv[0] */ - 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 (""); -} /* perform_an_assembly_pass() */ + if (flag_fatal_warnings && had_warnings () > 0 && had_errors () == 0) + as_bad (_("%d warnings, treating warnings as errors"), had_warnings ()); -/* The interface between the macro code and gas expression handling. */ + if (had_errors () > 0 && ! flag_always_generate_output) + keep_it = 0; -static int -macro_expr (emsg, idx, in, val) - const char *emsg; - int idx; - sb *in; - int *val; -{ - char *hold; - expressionS ex; + if (!keep_it) + unlink_if_ordinary (out_file_name); - 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); } - -/* end of as.c */