/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 1991, 1992, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1987-2020 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, 675 Mass Ave, Cambridge, MA 02139, 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"
+ 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. */
#define COMMON
+/* Disable code to set FAKE_LABEL_NAME in obj-multi.h, to avoid circular
+ reference. */
+#define INITIALIZING_EMULS
+
#include "as.h"
#include "subsegs.h"
#include "output-file.h"
+#include "sb.h"
+#include "macro.h"
+#include "dwarf2dbg.h"
+#include "dw2gencfi.h"
+#include "bfdver.h"
+#include "write.h"
+
+#ifdef HAVE_ITBL_CPU
+#include "itbl-ops.h"
+#else
+#define itbl_init()
+#endif
-#include <signal.h>
+#ifdef USING_CGEN
+/* Perform any cgen specific initialisation for gas. */
+extern void gas_cgen_begin (void);
+#endif
-#ifndef SIGTY
-#ifdef __STDC__
-#define SIGTY void
-#else
-#define SIGTY int
-#endif /* __STDC__ */
-#endif /* SIGTY */
+/* 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;
-#if 0
-/* Not currently used. */
-static SIGTY got_sig PARAMS ((int sig));
+/* Type of debugging to generate. */
+enum debug_info_type debug_type = DEBUG_UNSPECIFIED;
+int use_gnu_debug_info_extensions = 0;
+
+#ifndef MD_DEBUG_FORMAT_SELECTOR
+#define MD_DEBUG_FORMAT_SELECTOR NULL
#endif
-static void perform_an_assembly_pass PARAMS ((int argc, char **argv));
+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] */
+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. */
+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;
-#ifndef EXIT_SUCCESS
-#define EXIT_SUCCESS 0
-#define EXIT_FAILURE 1
+/* Which version of DWARF CIE to produce. This default value of -1
+ indicates that this value has not been set yet, a default value is
+ provided in dwarf2_init. A different value can also be supplied by the
+ command line flag --gdwarf-cie-version, or by a target in
+ MD_AFTER_PARSE_ARGS. */
+int flag_dwarf_cie_version = -1;
+
+/* The maximum level of DWARF DEBUG information we should manufacture. */
+unsigned int dwarf_level = 0;
+
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+int flag_use_elf_stt_common = DEFAULT_GENERATE_ELF_STT_COMMON;
+bfd_boolean flag_generate_build_notes = DEFAULT_GENERATE_BUILD_NOTES;
#endif
-int listing; /* true if a listing is wanted */
+/* 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;
-char *myname; /* argv[0] */
-#ifdef BFD_ASSEMBLER
-segT reg_section, expr_section;
-segT text_section, data_section, bss_section;
+#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
-/* This is true if the assembler should output time and space usage. */
+static long start_time;
-static int statistics_flag = 0;
+static int flag_macro_alternate;
\f
+#ifdef USE_EMULATIONS
+#define EMULATION_ENVIRON "AS_EMULATION"
+
+extern struct emulation mipsbelf, mipslelf, mipself;
+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 (int argc, char **argv)
+{
+ int i;
+ char *p;
+ const char *em = NULL;
+
+ for (i = 1; i < argc; i++)
+ if (!strncmp ("--em", argv[i], 4))
+ break;
+
+ if (i == argc)
+ goto do_default;
+
+ p = strchr (argv[i], '=');
+ if (p)
+ p++;
+ else
+ p = argv[i + 1];
+
+ if (!p || !*p)
+ as_fatal (_("missing emulation mode name"));
+ em = p;
+
+ do_default:
+ if (em == 0)
+ em = getenv (EMULATION_ENVIRON);
+ if (em == 0)
+ em = DEFAULT_EMULATION;
+
+ if (em)
+ {
+ for (i = 0; i < n_emulations; i++)
+ if (!strcmp (emulations[i]->name, em))
+ break;
+ if (i == n_emulations)
+ as_fatal (_("unrecognized emulation name `%s'"), em);
+ this_emulation = emulations[i];
+ }
+ else
+ this_emulation = emulations[0];
+
+ this_emulation->init ();
+}
+
+const char *
+default_emul_bfd_name (void)
+{
+ abort ();
+ return NULL;
+}
+
void
-print_version_id ()
+common_emul_init (void)
+{
+ this_format = this_emulation->format;
+
+ if (this_emulation->leading_underscore == 2)
+ this_emulation->leading_underscore = this_format->dfl_leading_underscore;
+
+ if (this_emulation->default_endian != 2)
+ target_big_endian = this_emulation->default_endian;
+
+ if (this_emulation->fake_label_name == 0)
+ {
+ if (this_emulation->leading_underscore)
+ this_emulation->fake_label_name = FAKE_LABEL_NAME;
+ else
+ /* What other parameters should we test? */
+ this_emulation->fake_label_name = "." FAKE_LABEL_NAME;
+ }
+}
+#endif
+
+void
+print_version_id (void)
{
static int printed;
+
if (printed)
return;
printed = 1;
- fprintf (stderr, "GNU assembler version %s (%s)", GAS_VERSION, TARGET_ALIAS);
-#ifdef BFD_ASSEMBLER
- fprintf (stderr, ", using BFD version %s", BFD_VERSION);
-#endif
- fprintf (stderr, "\n");
+ fprintf (stderr, _("GNU assembler version %s (%s) using BFD version %s\n"),
+ VERSION, TARGET_ALIAS, BFD_VERSION_STRING);
}
-void
-show_usage (stream)
- FILE *stream;
+#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
+enum compressed_debug_section_type flag_compress_debug
+ = COMPRESS_DEBUG_GABI_ZLIB;
+#endif
+
+static void
+show_usage (FILE * stream)
{
- fprintf (stream, "Usage: %s [option...] [asmfile...]\n", myname);
+ fprintf (stream, _("Usage: %s [option...] [asmfile...]\n"), myname);
- fprintf (stream, "\
+ fprintf (stream, _("\
Options:\n\
--a[sub-option...] turn on listings\n\
- Sub-options [default hls]:\n\
- d omit debugging directives\n\
- h include high-level source\n\
- l include assembly\n\
- n omit forms processing\n\
- s include symbols\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, "\
--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");
+ -a[sub-option...] turn on listings\n\
+ 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\
+ =FILE list to FILE (must be last sub-option)\n"));
+
+ fprintf (stream, _("\
+ --alternate initially turn on alternate macro syntax\n"));
+#ifdef DEFAULT_FLAG_COMPRESS_DEBUG
+ fprintf (stream, _("\
+ --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
+ compress DWARF debug sections using zlib [default]\n"));
+ fprintf (stream, _("\
+ --nocompress-debug-sections\n\
+ don't compress DWARF debug sections\n"));
+#else
+ fprintf (stream, _("\
+ --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\
+ compress DWARF debug sections using zlib\n"));
+ fprintf (stream, _("\
+ --nocompress-debug-sections\n\
+ don't compress DWARF debug sections [default]\n"));
+#endif
+ 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
+ {
+ int i;
+ const 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"));
+ fprintf (stream, _("\
+ --size-check=[error|warning]\n\
+ ELF .size directive check (default --size-check=error)\n"));
+ fprintf (stream, _("\
+ --elf-stt-common=[no|yes] "));
+ if (DEFAULT_GENERATE_ELF_STT_COMMON)
+ fprintf (stream, _("(default: yes)\n"));
+ else
+ fprintf (stream, _("(default: no)\n"));
+ fprintf (stream, _("\
+ generate ELF common symbols with STT_COMMON type\n"));
+ fprintf (stream, _("\
+ --sectname-subst enable section name substitution sequences\n"));
+
+ fprintf (stream, _("\
+ --generate-missing-build-notes=[no|yes] "));
+#if DEFAULT_GENERATE_BUILD_NOTES
+ fprintf (stream, _("(default: yes)\n"));
+#else
+ fprintf (stream, _("(default: no)\n"));
+#endif
+ fprintf (stream, _("\
+ generate GNU Build notes if none are present in the input\n"));
+#endif /* OBJ_ELF */
+
+ 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-<N> generate DWARF<N> debugging information. 2 <= <N> <= 5\n"));
+ fprintf (stream, _("\
+ --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, _("\
+ -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, _("\
+ -no-pad-sections do not pad the end of sections to alignment boundaries\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"));
+#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, _("\
+ -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);
+
+ 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 "-"
- * 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
- */
+/* 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.
-void
-parse_args (pargc, pargv)
- int *pargc;
- char ***pargv;
-{
- int old_argc, new_argc;
- char **old_argv, **new_argv;
+ 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;
- /* -v takes an argument on VMS, so we don't make it a generic option
- in that case. */
-#ifdef OBJ_VMS
- CONST char *std_shortopts = "-JKLRWZfa::DI:o:wX";
-#else
- /* Normal set of short options. */
- CONST char *std_shortopts = "-JKLRWZfa::DI:o:vwX";
+ 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', 'a', ':', ':', 'D', 'f', 'g', ':',':', 'I', ':', 'o', ':',
+#ifndef VMS
+ /* -v takes an argument on VMS, so we don't make it a generic
+ option. */
+ 'v',
+#endif
+ '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 struct option std_longopts[] = {
-#define OPTION_HELP (OPTION_STD_BASE)
- {"help", no_argument, NULL, OPTION_HELP},
-#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},
+ /* 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_GDWARF_2,
+ OPTION_GDWARF_3,
+ OPTION_GDWARF_4,
+ OPTION_GDWARF_5,
+ OPTION_GDWARF_SECTIONS,
+ OPTION_GDWARF_CIE_VERSION,
+ OPTION_STRIP_LOCAL_ABSOLUTE,
+ OPTION_TRADITIONAL_FORMAT,
+ OPTION_WARN,
+ OPTION_TARGET_HELP,
+ OPTION_EXECSTACK,
+ OPTION_NOEXECSTACK,
+ OPTION_SIZE_CHECK,
+ OPTION_ELF_STT_COMMON,
+ OPTION_ELF_BUILD_NOTES,
+ OPTION_SECTNAME_SUBST,
+ OPTION_ALTERNATE,
+ OPTION_AL,
+ OPTION_HASH_TABLE_SIZE,
+ OPTION_REDUCE_MEMORY_OVERHEADS,
+ OPTION_WARN_FATAL,
+ OPTION_COMPRESS_DEBUG,
+ OPTION_NOCOMPRESS_DEBUG,
+ OPTION_NO_PAD_SECTIONS /* = STD_BASE + 40 */
+ /* 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", optional_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}
+ ,{"elf-stt-common", required_argument, NULL, OPTION_ELF_STT_COMMON}
+ ,{"sectname-subst", no_argument, NULL, OPTION_SECTNAME_SUBST}
+ ,{"generate-missing-build-notes", required_argument, NULL, OPTION_ELF_BUILD_NOTES}
+#endif
+ ,{"fatal-warnings", no_argument, NULL, OPTION_WARN_FATAL}
+ ,{"gdwarf-2", no_argument, NULL, OPTION_GDWARF_2}
+ ,{"gdwarf-3", no_argument, NULL, OPTION_GDWARF_3}
+ ,{"gdwarf-4", no_argument, NULL, OPTION_GDWARF_4}
+ ,{"gdwarf-5", no_argument, NULL, OPTION_GDWARF_5}
+ /* GCC uses --gdwarf-2 but GAS used to to use --gdwarf2,
+ so we keep it here for backwards compatibility. */
+ ,{"gdwarf2", no_argument, NULL, OPTION_GDWARF_2}
+ ,{"gdwarf-sections", no_argument, NULL, OPTION_GDWARF_SECTIONS}
+ ,{"gdwarf-cie-version", required_argument, NULL, OPTION_GDWARF_CIE_VERSION}
+ ,{"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, '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-pad-sections", no_argument, NULL, OPTION_NO_PAD_SECTIONS}
+ ,{"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 = (struct option *) xmalloc (sizeof (std_longopts)
+ + md_longopts_size + sizeof (struct option));
memcpy (longopts, std_longopts, sizeof (std_longopts));
- memcpy ((char *) longopts + sizeof (std_longopts),
- md_longopts, md_longopts_size);
+ 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 = XNEWVEC (char *, old_argc + 1);
new_argv[0] = old_argv[0];
new_argc = 1;
new_argv[new_argc] = NULL;
default:
/* md_parse_option should return 1 if it recognizes optc,
0 if not. */
- if (md_parse_option (optc, optarg) == 0)
- exit (EXIT_FAILURE);
- break;
+ if (md_parse_option (optc, optarg) != 0)
+ break;
+ /* `-v' isn't included in the general short_opts list, so check for
+ it explicitly here before deciding we've gotten a bad argument. */
+ if (optc == 'v')
+ {
+#ifdef VMS
+ /* Telling getopt to treat -v's value as optional can result
+ in it picking up a following filename argument here. The
+ VMS code in md_parse_option can return 0 in that case,
+ but it has no way of pushing the filename argument back. */
+ if (optarg && *optarg)
+ new_argv[new_argc++] = optarg, new_argv[new_argc] = NULL;
+ else
+#else
+ case 'v':
+#endif
+ case OPTION_VERBOSE:
+ print_version_id ();
+ verbose = 1;
+ break;
+ }
+ else
+ as_bad (_("unrecognized option -%c%s"), optc, optarg ? optarg : "");
+ /* Fall through. */
case '?':
exit (EXIT_FAILURE);
case 1: /* File name. */
if (!strcmp (optarg, "-"))
- optarg = "";
+ optarg = (char *) "";
new_argv[new_argc++] = optarg;
new_argv[new_argc] = NULL;
break;
+ case OPTION_TARGET_HELP:
+ md_show_usage (stdout);
+ exit (EXIT_SUCCESS);
+
case OPTION_HELP:
show_usage (stdout);
- exit (0);
+ exit (EXIT_SUCCESS);
case OPTION_NOCPP:
break;
+ case OPTION_NO_PAD_SECTIONS:
+ do_not_pad_sections_to_alignment = 1;
+ break;
+
case OPTION_STATISTICS:
- statistics_flag = 1;
+ 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 ();
- exit (0);
+ /* This output is intended to follow the GNU standards document. */
+ printf (_("GNU assembler %s\n"), BFD_VERSION_STRING);
+ printf (_("Copyright (C) 2020 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 version 3 or later.\n\
+This program has absolutely no warranty.\n"));
+#ifdef TARGET_WITH_CPU
+ printf (_("This assembler was configured for a target of `%s' "
+ "and default,\ncpu type `%s'.\n"),
+ TARGET_ALIAS, TARGET_WITH_CPU);
+#else
+ printf (_("This assembler was configured for a target of `%s'.\n"),
+ TARGET_ALIAS);
+#endif
+ exit (EXIT_SUCCESS);
+
+ case OPTION_EMULATION:
+#ifdef USE_EMULATIONS
+ if (strcmp (optarg, this_emulation->name))
+ as_fatal (_("multiple emulation names specified"));
+#else
+ as_fatal (_("emulations not handled in this configuration"));
+#endif
+ break;
+
+ case OPTION_DUMPCONFIG:
+ fprintf (stderr, _("alias = %s\n"), TARGET_ALIAS);
+ fprintf (stderr, _("canonical = %s\n"), TARGET_CANONICAL);
+ fprintf (stderr, _("cpu-type = %s\n"), TARGET_CPU);
+#ifdef TARGET_OBJ_FORMAT
+ fprintf (stderr, _("format = %s\n"), TARGET_OBJ_FORMAT);
+#endif
+#ifdef TARGET_FORMAT
+ fprintf (stderr, _("bfd-target = %s\n"), TARGET_FORMAT);
+#endif
+ exit (EXIT_SUCCESS);
+
+ case OPTION_COMPRESS_DEBUG:
+ if (optarg)
+ {
+#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
+ if (strcasecmp (optarg, "none") == 0)
+ flag_compress_debug = COMPRESS_DEBUG_NONE;
+ else if (strcasecmp (optarg, "zlib") == 0)
+ flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
+ else if (strcasecmp (optarg, "zlib-gnu") == 0)
+ flag_compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
+ else if (strcasecmp (optarg, "zlib-gabi") == 0)
+ flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
+ else
+ as_fatal (_("Invalid --compress-debug-sections option: `%s'"),
+ optarg);
+#else
+ as_fatal (_("--compress-debug-sections=%s is unsupported"),
+ optarg);
+#endif
+ }
+ else
+ flag_compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
+ break;
+
+ case OPTION_NOCOMPRESS_DEBUG:
+ flag_compress_debug = COMPRESS_DEBUG_NONE;
+ break;
+
+ case OPTION_DEBUG_PREFIX_MAP:
+ add_debug_prefix_map (optarg);
+ break;
+
+ 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 = XNEW (struct defsym_list);
+ n->next = defsyms;
+ n->name = optarg;
+ n->value = i;
+ defsyms = n;
+ }
+ break;
+
+#ifdef HAVE_ITBL_CPU
+ 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 = XNEW (struct itbl_file_list);
+ 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;
+#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;
+ dwarf_level = 2;
+ }
+ 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 'v':
- print_version_id ();
+ case OPTION_GDWARF_2:
+ debug_type = DEBUG_DWARF2;
+ dwarf_level = 2;
+ break;
+
+ case OPTION_GDWARF_3:
+ debug_type = DEBUG_DWARF2;
+ dwarf_level = 3;
+ break;
+
+ case OPTION_GDWARF_4:
+ debug_type = DEBUG_DWARF2;
+ dwarf_level = 4;
+ break;
+
+ case OPTION_GDWARF_5:
+ debug_type = DEBUG_DWARF2;
+ dwarf_level = 5;
+ break;
+
+ case OPTION_GDWARF_SECTIONS:
+ flag_dwarf_sections = TRUE;
+ break;
+
+ case OPTION_GDWARF_CIE_VERSION:
+ flag_dwarf_cie_version = atoi (optarg);
+ /* The available CIE versions are 1 (DWARF 2), 3 (DWARF 3), and 4
+ (DWARF 4 and 5). */
+ if (flag_dwarf_cie_version < 1
+ || flag_dwarf_cie_version == 2
+ || flag_dwarf_cie_version > 4)
+ as_fatal (_("Invalid --gdwarf-cie-version `%s'"), optarg);
+ switch (flag_dwarf_cie_version)
+ {
+ case 1:
+ if (dwarf_level < 2)
+ dwarf_level = 2;
+ break;
+ case 3:
+ if (dwarf_level < 3)
+ dwarf_level = 3;
+ break;
+ default:
+ if (dwarf_level < 4)
+ dwarf_level = 4;
+ break;
+ }
+ break;
case 'J':
flag_signed_overflow_ok = 1;
break;
+#ifndef WORKING_DOT_WORD
case 'K':
flag_warn_displacement = 1;
break;
-
+#endif
case 'L':
flag_keep_locals = 1;
break;
+ case OPTION_LISTING_LHS_WIDTH:
+ listing_lhs_width = atoi (optarg);
+ if (listing_lhs_width_second < listing_lhs_width)
+ listing_lhs_width_second = listing_lhs_width;
+ break;
+ case OPTION_LISTING_LHS_WIDTH2:
+ {
+ int tmp = atoi (optarg);
+
+ if (tmp > listing_lhs_width)
+ listing_lhs_width_second = tmp;
+ }
+ break;
+ case OPTION_LISTING_RHS_WIDTH:
+ listing_rhs_width = atoi (optarg);
+ break;
+ case OPTION_LISTING_CONT_LINES:
+ listing_lhs_cont_lines = atoi (optarg);
+ break;
+
+ case 'M':
+ flag_mri = 1;
+#ifdef TC_M68K
+ flag_m68k_mri = 1;
+#endif
+ break;
+
case 'R':
flag_readonly_data_in_text = 1;
break;
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;
+
+ case OPTION_SIZE_CHECK:
+ if (strcasecmp (optarg, "error") == 0)
+ flag_allow_nonconst_size = FALSE;
+ else if (strcasecmp (optarg, "warning") == 0)
+ flag_allow_nonconst_size = TRUE;
+ else
+ as_fatal (_("Invalid --size-check= option: `%s'"), optarg);
+ break;
+
+ case OPTION_ELF_STT_COMMON:
+ if (strcasecmp (optarg, "no") == 0)
+ flag_use_elf_stt_common = 0;
+ else if (strcasecmp (optarg, "yes") == 0)
+ flag_use_elf_stt_common = 1;
+ else
+ as_fatal (_("Invalid --elf-stt-common= option: `%s'"),
+ optarg);
+ break;
+
+ case OPTION_SECTNAME_SUBST:
+ flag_sectname_subst = 1;
+ break;
+
+ case OPTION_ELF_BUILD_NOTES:
+ if (strcasecmp (optarg, "no") == 0)
+ flag_generate_build_notes = FALSE;
+ else if (strcasecmp (optarg, "yes") == 0)
+ flag_generate_build_notes = TRUE;
+ else
+ as_fatal (_("Invalid --generate-missing-build-notes option: `%s'"),
+ optarg);
+ break;
+
+#endif /* OBJ_ELF */
+
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;
+ case 'g':
+ listing |= LISTING_GENERAL;
+ break;
case 'h':
listing |= LISTING_HLL;
break;
case 'l':
listing |= LISTING_LISTING;
break;
+ case 'm':
+ listing |= LISTING_MACEXP;
+ break;
case 'n':
listing |= LISTING_NOFORM;
break;
case 's':
listing |= LISTING_SYMBOLS;
break;
+ case '=':
+ listing_filename = xstrdup (optarg + 1);
+ optarg += strlen (listing_filename);
+ break;
default:
- as_bad ("invalid listing option `%c'", *optarg);
- exit (EXIT_FAILURE);
+ as_fatal (_("invalid listing option `%c'"), *optarg);
break;
}
optarg++;
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;
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;
+ }
}
}
*pargc = new_argc;
*pargv = new_argv;
-}
-
-int
-main (argc, argv)
- int argc;
- char **argv;
-{
- int keep_it;
- long start_time = get_run_time ();
-
-#ifdef HOST_SPECIAL_INIT
- HOST_SPECIAL_INIT (argc, argv);
-#endif
-
-#if 0 /* do we need any of this?? */
- {
- static const int sig[] = {SIGHUP, SIGINT, SIGPIPE, SIGTERM, 0};
- int a;
- for (a = 0; sig[a] != 0; a++)
- if (signal (sig[a], SIG_IGN) != SIG_IGN)
- signal (sig[a], got_sig);
- }
+#ifdef md_after_parse_args
+ md_after_parse_args ();
#endif
+}
- myname = argv[0];
-#ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
-#define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
-#endif
- out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
-
-#ifdef BFD_ASSEMBLER
- bfd_init ();
-#endif
+static void
+dump_statistics (void)
+{
+ long run_time = get_run_time () - start_time;
- symbol_begin ();
- subsegs_begin ();
- read_begin ();
- input_scrub_begin ();
- frag_init ();
- parse_args (&argc, &argv);
+ fprintf (stderr, _("%s: total time in assembly: %ld.%06ld\n"),
+ myname, run_time / 1000000, run_time % 1000000);
-#ifdef BFD_ASSEMBLER
- output_file_create (out_file_name);
- assert (stdoutput != 0);
-#endif
+ subsegs_print_statistics (stderr);
+ write_print_statistics (stderr);
+ symbol_print_statistics (stderr);
+ read_print_statistics (stderr);
-#ifdef tc_init_after_args
- tc_init_after_args ();
+#ifdef tc_print_statistics
+ tc_print_statistics (stderr);
#endif
- perform_an_assembly_pass (argc, argv); /* Assemble it. */
-#ifdef TC_I960
- brtab_emit ();
+#ifdef obj_print_statistics
+ obj_print_statistics (stderr);
#endif
+}
- if (seen_at_least_1_file ()
- && !((had_warnings () && flag_always_generate_output)
- || had_errors () > 0))
- keep_it = 1;
- else
- keep_it = 0;
+static void
+close_output_file (void)
+{
+ output_file_close (out_file_name);
+ if (!keep_it)
+ unlink_if_ordinary (out_file_name);
+}
- if (keep_it)
- write_object_file ();
+/* The interface between the macro code and gas expression handling. */
-#ifndef NO_LISTING
- listing_print ("");
-#endif
+static size_t
+macro_expr (const char *emsg, size_t idx, sb *in, offsetT *val)
+{
+ expressionS ex;
-#ifndef OBJ_VMS /* does its own file handling */
-#ifndef BFD_ASSEMBLER
- if (keep_it)
-#endif
- output_file_close (out_file_name);
-#endif
+ sb_terminate (in);
- if (!keep_it)
- unlink (out_file_name);
+ temp_ilp (in->ptr + idx);
+ expression_and_evaluate (&ex);
+ idx = input_line_pointer - in->ptr;
+ restore_ilp ();
- input_scrub_end ();
-#ifdef md_end
- md_end ();
-#endif
+ if (ex.X_op != O_constant)
+ as_bad ("%s", emsg);
- if (statistics_flag)
- {
- extern char **environ;
- char *lim = (char *) sbrk (0);
- long run_time = get_run_time () - start_time;
-
- fprintf (stderr, "%s: total time in assembly: %ld.%06ld\n",
- myname, run_time / 1000000, run_time % 1000000);
- fprintf (stderr, "%s: data size %ld\n",
- myname, (long) (lim - (char *) &environ));
- }
+ *val = ex.X_add_number;
- if ((had_warnings () && flag_always_generate_output)
- || had_errors () > 0)
- return EXIT_FAILURE;
- return EXIT_SUCCESS;
+ 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. */
-/* 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;
+static void
+perform_an_assembly_pass (int argc, char ** argv)
{
int saw_a_file = 0;
-#ifdef BFD_ASSEMBLER
+#ifndef OBJ_MACH_O
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 */
+#ifndef OBJ_MACH_O
/* Create the standard sections, and those the assembler uses
internally. */
- text_section = subseg_new (".text", 0);
- data_section = subseg_new (".data", 0);
- bss_section = subseg_new (".bss", 0);
+ text_section = subseg_new (TEXT_SECTION_NAME, 0);
+ data_section = subseg_new (DATA_SECTION_NAME, 0);
+ bss_section = subseg_new (BSS_SECTION_NAME, 0);
/* @@ FIXME -- we're setting the RELOC flag so that sections are assumed
- to have relocs, otherwise we don't find out in time. */
+ to have relocs, otherwise we don't find out in time. */
applicable = bfd_applicable_section_flags (stdoutput);
- bfd_set_section_flags (stdoutput, text_section,
+ bfd_set_section_flags (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);
+ bfd_set_section_flags (data_section,
+ applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
+ | SEC_DATA));
+ bfd_set_section_flags (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);
-#endif /* BFD_ASSEMBLER */
-
+#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, in BFD_ASSEMBLER mode. */
+ and sections already created. */
md_begin ();
- argv++; /* skip argv[0] */
- argc--; /* skip argv[0] */
+#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? */
+ { /* Is it a file-name argument? */
+ PROGRESS (1);
saw_a_file++;
- /* argv->"" if stdin desired, else->filename */
+ /* argv->"" if stdin desired, else->filename. */
read_a_source_file (*argv);
}
- argv++; /* completed that argv */
+ argv++; /* Completed that argv. */
}
if (!saw_a_file)
read_a_source_file ("");
-} /* perform_an_assembly_pass() */
+}
\f
-#if 0
-/* This is not currently used. */
-static SIGTY
-got_sig (sig)
- int sig;
+
+int
+main (int argc, char ** argv)
{
- static here_before = 0;
+ char ** argv_orig = argv;
+ struct stat sob;
+
+ int macro_strip_at;
- as_bad ("Interrupted by signal %d", sig);
- if (here_before++)
- exit (EXIT_FAILURE);
-#if 0 /* If SIGTY is void, this produces warnings. */
- return ((SIGTY) 0);
+ start_time = get_run_time ();
+ signal_init ();
+
+#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+ setlocale (LC_MESSAGES, "");
#endif
-}
+#if defined (HAVE_SETLOCALE)
+ setlocale (LC_CTYPE, "");
+#endif
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ if (debug_memory)
+ chunksize = 64;
+
+#ifdef HOST_SPECIAL_INIT
+ HOST_SPECIAL_INIT (argc, argv);
+#endif
+
+ myname = argv[0];
+ xmalloc_set_program_name (myname);
+
+ expandargv (&argc, &argv);
+
+ START_PROGRESS (myname, 0);
+
+#ifndef OBJ_DEFAULT_OUTPUT_FILE_NAME
+#define OBJ_DEFAULT_OUTPUT_FILE_NAME "a.out"
+#endif
+
+ out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
+
+ hex_init ();
+ if (bfd_init () != BFD_INIT_MAGIC)
+ as_fatal (_("libbfd ABI mismatch"));
+ 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);
+
+ if (argc > 1 && stat (out_file_name, &sob) == 0)
+ {
+ int i;
+
+ for (i = 1; i < argc; ++i)
+ {
+ struct stat sib;
+
+ /* Check that the input file and output file are different. */
+ if (stat (argv[i], &sib) == 0
+ && sib.st_ino == sob.st_ino
+ /* POSIX emulating systems may support stat() but if the
+ underlying file system does not support a file serial number
+ of some kind then they will return 0 for the inode. So
+ two files with an inode of 0 may not actually be the same.
+ On real POSIX systems no ordinary file will ever have an
+ inode of 0. */
+ && sib.st_ino != 0
+ /* Different files may have the same inode number if they
+ reside on different devices, so check the st_dev field as
+ well. */
+ && sib.st_dev == sob.st_dev
+ /* PR 25572: Only check regular files. Devices, sockets and so
+ on might actually work as both input and output. Plus there
+ is a use case for using /dev/null as both input and output
+ when checking for command line option support in a script:
+ as --foo /dev/null -o /dev/null; if $? then ... */
+ && S_ISREG (sib.st_mode))
+ {
+ const char *saved_out_file_name = out_file_name;
+
+ /* Don't let as_fatal remove the output file! */
+ out_file_name = NULL;
+ as_fatal (_("The input '%s' and output '%s' files are the same"),
+ argv[i], saved_out_file_name);
+ }
+ }
+ }
+
+ symbol_begin ();
+ frag_init ();
+ subsegs_begin ();
+ 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_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);
+
+ output_file_create (out_file_name);
+ gas_assert (stdoutput != 0);
+
+ dot_symbol_init ();
+
+#ifdef tc_init_after_args
+ tc_init_after_args ();
+#endif
+
+ 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. */
+ while (defsyms != NULL)
+ {
+ symbolS *sym;
+ struct defsym_list *next;
+
+ 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);
+ defsyms = next;
+ }
+
+ PROGRESS (1);
+
+ /* Assemble it. */
+ perform_an_assembly_pass (argc, argv);
+
+ cond_finish_check (-1);
+
+#ifdef md_end
+ md_end ();
+#endif
+
+#if 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 (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 ();
+
+ keep_it = 0;
+ if (seen_at_least_1_file ())
+ {
+ int n_warns, n_errs;
+ char warn_msg[50];
+ char err_msg[50];
+
+ write_object_file ();
+
+ n_warns = had_warnings ();
+ n_errs = had_errors ();
+
+ sprintf (warn_msg,
+ ngettext ("%d warning", "%d warnings", n_warns), n_warns);
+ sprintf (err_msg,
+ ngettext ("%d error", "%d errors", n_errs), n_errs);
+ if (flag_fatal_warnings && n_warns != 0)
+ {
+ if (n_errs == 0)
+ as_bad (_("%s, treating warnings as errors"), warn_msg);
+ n_errs += n_warns;
+ }
+
+ 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);
+ }
+ }
+
+ fflush (stderr);
+
+#ifndef NO_LISTING
+ listing_print (listing_filename, argv_orig);
#endif
-/* end of as.c */
+ 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);
+}
projects / deliverable / binutils-gdb.git / blobdiff