/* as.c - GAS main program.
- Copyright (C) 1987, 1990, 1991, 1992, 1994 Free Software Foundation, Inc.
+ Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 1996
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
segT text_section, data_section, bss_section;
#endif
+int chunksize = 5000;
+
+/* 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;
+
\f
void
print_version_id ()
=file set listing file name (must be last sub-option)\n");
fprintf (stream, "\
-D produce assembler debugging messages\n\
+--defsym SYM=VAL define symbol SYM to given value\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\
-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\
+--statistics print various measured statistics from execution\n\
--version print assembler version number and exit\n\
-W suppress warnings\n\
-w ignored\n\
{"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}
};
/* Construct the option lists from the standard list and the
#endif
exit (EXIT_SUCCESS);
+ case OPTION_DEFSYM:
+ {
+ char *s;
+ long i;
+ symbolS *sym;
+
+ for (s = optarg; *s != '\0' && *s != '='; s++)
+ ;
+ if (*s == '\0')
+ as_fatal ("bad defsym; format is --defsym name=value");
+ *s++ = '\0';
+ i = strtol (s, (char **) NULL, 0);
+ sym = symbol_new (optarg, absolute_section, (valueT) i,
+ &zero_address_frag);
+ symbol_table_insert (sym);
+ }
+ break;
+
case 'J':
flag_signed_overflow_ok = 1;
break;
case 'M':
flag_mri = 1;
+#ifdef TC_M68K
+ flag_m68k_mri = 1;
+#endif
break;
case 'R':
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:
case 'I':
{ /* Include file directory */
- char *temp = strdup (optarg);
- if (!temp)
- as_fatal ("virtual memory exhausted");
+ 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':
*pargv = new_argv;
}
+static void dump_statistics ();
+static long start_time;
+
int
main (argc, argv)
int argc;
char **argv;
{
+ int macro_alternate;
+ int macro_strip_at;
int keep_it;
- long start_time = get_run_time ();
+
+ start_time = get_run_time ();
+
+ if (debug_memory)
+ {
+#ifdef BFD_ASSEMBLER
+ extern long _bfd_chunksize;
+ _bfd_chunksize = 64;
+#endif
+ chunksize = 64;
+ }
#ifdef HOST_SPECIAL_INIT
HOST_SPECIAL_INIT (argc, argv);
symbol_begin ();
frag_init ();
subsegs_begin ();
- read_begin ();
parse_args (&argc, &argv);
+ read_begin ();
input_scrub_begin ();
expr_begin ();
- macro_init (0, flag_mri, macro_expr);
+
+ if (flag_print_statistics)
+ xatexit (dump_statistics);
+
+ macro_alternate = 0;
+ macro_strip_at = 0;
+#ifdef TC_I960
+ macro_strip_at = flag_mri;
+#endif
+#ifdef TC_A29K
+ /* For compatibility with the AMD 29K family macro assembler
+ specification. */
+ macro_alternate = 1;
+ macro_strip_at = 1;
+#endif
+
+ macro_init (macro_alternate, flag_mri, macro_strip_at, macro_expr);
PROGRESS (1);
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);
+
+#ifdef md_end
+ md_end ();
#endif
-/* end-sanitize-rce */
if (seen_at_least_1_file ()
&& !((had_warnings () && flag_always_generate_output)
unlink (out_file_name);
input_scrub_end ();
-#ifdef md_end
- md_end ();
-#endif
END_PROGRESS (myname);
- if (flag_print_statistics)
- {
- extern char **environ;
+ /* Use xexit 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)
+ xexit (EXIT_FAILURE);
+ xexit (EXIT_SUCCESS);
+}
+
+static void
+dump_statistics ()
+{
+ extern char **environ;
#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
+ char *lim = (char *) sbrk (0);
#endif
- long run_time = get_run_time () - start_time;
+ 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: 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));
+ fprintf (stderr, "%s: data size %ld\n",
+ myname, (long) (lim - (char *) &environ));
#endif
- }
- /* 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);
+ 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
/* Handle parsing for the MRI SECT/SECTION pseudo-op. This should be
called by the obj-format routine which handles section changing
when in MRI mode. It will create a new section, and return it. It
- will set *TYPE to the section type: one of '\0' (unspecified), 'C'
- (code), 'D' (data), 'M' (mixed), or 'R' (romable). If
- BFD_ASSEMBLER is defined, the flags will be set in the section. */
+ will set *TYPE to the section type: one of 'C' (code), 'D' (data),
+ 'M' (mixed), or 'R' (romable). If BFD_ASSEMBLER is defined, the
+ flags will be set in the section. */
void
s_mri_sect (type)
*input_line_pointer = '\0';
}
- name = strdup (name);
- if (name == NULL)
- as_fatal ("virtual memory exhausted");
+ name = xstrdup (name);
*input_line_pointer = c;
record_alignment (seg, align);
}
- *type = '\0';
+ *type = 'C';
if (*input_line_pointer == ',')
{
c = *++input_line_pointer;
flags = SEC_NO_FLAGS;
if (*type == 'C')
- flags = SEC_CODE;
- else if (*type == 'D')
- flags = SEC_DATA;
+ flags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE;
+ else if (*type == 'D' || *type == 'M')
+ flags = SEC_ALLOC | SEC_LOAD | SEC_DATA;
else if (*type == 'R')
- flags = SEC_ROM;
+ flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_READONLY | SEC_ROM;
if (flags != SEC_NO_FLAGS)
{
if (! bfd_set_section_flags (stdoutput, seg, flags))
name = input_line_pointer;
c = get_symbol_end ();
- name = strdup (name);
- if (name == NULL)
- as_fatal ("virtual memory exhausted");
+ name = xstrdup (name);
*input_line_pointer = c;
to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "as.h"
+#include "libiberty.h"
#include "obstack.h"
#include "subsegs.h"
{ /* Ordinary case. */
segT save_seg;
subsegT save_subseg;
- char *newsecname;
segT seg;
char *p;
save_subseg = now_subseg;
/* Create the stab string section. */
- newsecname = xmalloc ((unsigned long) (strlen (stabstr_secname) + 1));
- strcpy (newsecname, stabstr_secname);
-
- seg = subseg_new (newsecname, 0);
+ seg = subseg_new (stabstr_secname, 0);
retval = seg_info (seg)->stabu.stab_string_size;
- if (retval > 0)
- free (newsecname);
- else
+ if (retval <= 0)
{
/* Make sure the first string is empty. */
p = frag_more (1);
retval = seg_info (seg)->stabu.stab_string_size = 1;
#ifdef BFD_ASSEMBLER
bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_DEBUGGING);
-#else
- free (newsecname);
+ if (seg->name == stabstr_secname)
+ seg->name = xstrdup (stabstr_secname);
#endif
}
unsigned int stroff;
char *p;
+ static segT cached_sec;
+ static char *cached_secname;
+
dot = frag_now_fix ();
- seg = subseg_new (stab_secname, 0);
+ if (cached_secname && !strcmp (cached_secname, stab_secname))
+ {
+ seg = cached_sec;
+ subseg_set (seg, 0);
+ }
+ else
+ {
+ seg = subseg_new (stab_secname, 0);
+ if (cached_secname)
+ free (cached_secname);
+ cached_secname = xstrdup (stab_secname);
+ cached_sec = seg;
+ }
if (! seg_info (seg)->hadone)
{
}
stroff = get_stab_string_offset (string, stabstr_secname);
+ if (what == 's')
+ {
+ /* release the string */
+ obstack_free (¬es, string);
+ }
/* At least for now, stabs in a special stab section are always
output as 12 byte blocks of information. */
{
int length;
char *stab_secname, *stabstr_secname;
+ static char *saved_secname, *saved_strsecname;
+ /* @@ MEMORY LEAK: This allocates a copy of the string, but in most
+ cases it will be the same string, so we could release the storage
+ back to the obstack it came from. */
stab_secname = demand_copy_C_string (&length);
SKIP_WHITESPACE ();
if (*input_line_pointer == ',')
/* To get the name of the stab string section, simply add "str" to
the stab section name. */
- stabstr_secname = (char *) xmalloc (strlen (stab_secname) + 4);
- strcpy (stabstr_secname, stab_secname);
- strcat (stabstr_secname, "str");
- s_stab_generic (what, stab_secname, stabstr_secname);
- free (stabstr_secname);
+ if (saved_secname == 0 || strcmp (saved_secname, stab_secname))
+ {
+ stabstr_secname = (char *) xmalloc (strlen (stab_secname) + 4);
+ strcpy (stabstr_secname, stab_secname);
+ strcat (stabstr_secname, "str");
+ if (saved_secname)
+ {
+ free (saved_secname);
+ free (saved_strsecname);
+ }
+ saved_secname = stab_secname;
+ saved_strsecname = stabstr_secname;
+ }
+ s_stab_generic (what, saved_secname, saved_strsecname);
}
#ifdef S_SET_DESC
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