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more emulation fixes

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This commit is contained in:
Ken Raeburn 1995-05-23 00:09:34 +00:00
parent cac390d444
commit 4761bb029a
2 changed files with 110 additions and 0 deletions
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13
gas/ChangeLog
View File

@ -1,3 +1,16 @@
Mon May 22 20:03:23 1995 Ken Raeburn <raeburn@cujo.cygnus.com>
* config/e-mipself.c (mipself): New emulation mode, doesn't change
endianness from configured default.
* config/e-mipsecoff.c (mipsecoff): Ditto.
* configure.in (mips ecoff/elf targets): Include them.
* as.c (mipself, mipsecoff): Declare.
* as.c (emulation_name): New variable.
(select_emulation_mode): Set emulation_name. Don't change argv.
(parse_args): Handle --emulation; complain if the supplied name
isn't what select_emulation_name came up with.
start-sanitize-arc
Mon May 22 16:56:58 1995 Doug Evans <dje@chestnut.cygnus.com>

97
gas/as.c
View File

@ -104,6 +104,90 @@ Options:\n\
md_show_usage (stream);
}
#ifdef USE_EMULATIONS
#define EMULATION_ENVIRON "AS_EMULATION"
extern struct emulation mipsbelf, mipslelf, mipself;
extern struct emulation mipsbecoff, mipslecoff, mipsecoff;
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;
{
int i;
char *p, *em = 0;
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 ()
{
abort ();
}
void
common_emul_init ()
{
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 = "L0\001";
else
/* What other parameters should we test? */
this_emulation->fake_label_name = ".L0\001";
}
}
#endif
/*
* Since it is easy to do here we interpret the special arg "-"
* to mean "use stdin" and we set that argv[] pointing to "".
@ -153,6 +237,8 @@ parse_args (pargc, pargv)
{"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},
};
/* Construct the option lists from the standard list and the
@ -237,6 +323,12 @@ parse_args (pargc, pargv)
print_version_id ();
exit (EXIT_SUCCESS);
case OPTION_EMULATION:
/* Already handled; ignore it this time, except error checking. */
if (strcmp (optarg, this_emulation->name))
as_fatal ("multiple emulation names specified");
break;
case OPTION_DUMPCONFIG:
fprintf (stderr, "alias = %s\n", TARGET_ALIAS);
fprintf (stderr, "canonical = %s\n", TARGET_CANONICAL);
@ -370,10 +462,15 @@ main (argc, argv)
out_file_name = OBJ_DEFAULT_OUTPUT_FILE_NAME;
hex_init ();
#ifdef BFD_ASSEMBLER
bfd_init ();
#endif
#ifdef USE_EMULATIONS
select_emulation_mode (argc, argv);
#endif
PROGRESS (1);
symbol_begin ();
frag_init ();