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* subsegs.c (subseg_new): Set output_section of new section.

Browse Source 
* as.c (perform_an_assemly_pass): Don't set output_section here.
	* expr.c (expr_part, expr): Turn off section assertions for ECOFF,
	since it has additional sections.
	* read.c (s_lcomm): For MIPS ECOFF, put small objects in .sbss,
	not bss_section.
	* config/obj-ecoff.h (TARGET_SYMBOL_FIELDS): Added
	ecoff_undefined field.
	* config/obj-ecoff.c (obj_symbol_new_hook): Initialize
	ecoff_undefined field.
	(add_file): If using stabs, just output a stabs symbol rather than
	creating a new fdr.
	(obj_ecoff_begin, obj_ecoff_bend): Ignore line number by reading
	it with get_absolute_expression, rather than skipping it by hand.
	(obj_ecoff_loc): If using stabs, just output a stabs symbol rather
	than ECOFF line number information.
	(obj_ecoff_stab): Accept non-zero values for stabs line number.
	(ecoff_build_symbols): Set ifilesym correctly.  Set storage class
	to small, undefined and/or readonly sections if appropriate.
	Don't output symbol names containing \001 characters.
	(ecoff_frob_file): Make sure at least one fdr is output.
	* config/tc-mips.h: Define TC_MIPS.
	* config/tc-mips.c (g_switch_value): New static variable.
	(md_assemble): Set gp size of output BFD.
	(gp_reference): New function; returns 1 if expression can be
	accesssed via gp.  Always returns 0 if not using ECOFF.
	(macro_build): Convert BFD_RELOC_LO16 to BFD_RELOC_MIPS_GPREL if
	possible.
	(macro): Generate sequences using gp if possible.
	(md_parse_option): Ignore -EL and -EB.  Parse -G.
	(md_apply_fix): Added BFD_RELOC_MIPS_GPREL to ignored case.
	(s_change_sec): Handle .rdata and .sdata for ECOFF.
	(s_extern): Mark symbol as external.  Set ecoff_undefined field.
This commit is contained in:
Ian Lance Taylor
1993-04-01 02:14:29 +00:00
parent 8155a95d96
commit 670a50ebf6
4 changed files with 2460 additions and 1843 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
gas/ChangeLog
View File

@ -1,5 +1,47 @@
Wed Mar 31 17:53:54 1993 Ian Lance Taylor (ian@cygnus.com)
* subsegs.c (subseg_new): Set output_section of new section.
* as.c (perform_an_assemly_pass): Don't set output_section here.
* expr.c (expr_part, expr): Turn off section assertions for ECOFF,
since it has additional sections.
* read.c (s_lcomm): For MIPS ECOFF, put small objects in .sbss,
not bss_section.
* config/obj-ecoff.h (TARGET_SYMBOL_FIELDS): Added
ecoff_undefined field.
* config/obj-ecoff.c (obj_symbol_new_hook): Initialize
ecoff_undefined field.
(add_file): If using stabs, just output a stabs symbol rather than
creating a new fdr.
(obj_ecoff_begin, obj_ecoff_bend): Ignore line number by reading
it with get_absolute_expression, rather than skipping it by hand.
(obj_ecoff_loc): If using stabs, just output a stabs symbol rather
than ECOFF line number information.
(obj_ecoff_stab): Accept non-zero values for stabs line number.
(ecoff_build_symbols): Set ifilesym correctly. Set storage class
to small, undefined and/or readonly sections if appropriate.
Don't output symbol names containing \001 characters.
(ecoff_frob_file): Make sure at least one fdr is output.
* config/tc-mips.h: Define TC_MIPS.
* config/tc-mips.c (g_switch_value): New static variable.
(md_assemble): Set gp size of output BFD.
(gp_reference): New function; returns 1 if expression can be
accesssed via gp. Always returns 0 if not using ECOFF.
(macro_build): Convert BFD_RELOC_LO16 to BFD_RELOC_MIPS_GPREL if
possible.
(macro): Generate sequences using gp if possible.
(md_parse_option): Ignore -EL and -EB. Parse -G.
(md_apply_fix): Added BFD_RELOC_MIPS_GPREL to ignored case.
(s_change_sec): Handle .rdata and .sdata for ECOFF.
(s_extern): Mark symbol as external. Set ecoff_undefined field.
Tue Mar 30 10:11:41 1993 Ken Raeburn (raeburn@cambridge.cygnus.com)
* output-file.c (output_file_create): Don't call as_perror for
filename rejected by application.
* as.c (main) [BFD_ASSEMBLER]: If errors occur, close and unlink
the output file.
* doc/as.texinfo: Don't use @value in node names for the moment;
references don't appear to work right.

286
gas/config/obj-ecoff.c
View File

@ -30,6 +30,8 @@
#include "aout/stab_gnu.h"
#include "../bfd/libecoff.h"
#include <ctype.h>
/* Why isn't this in coff/sym.h? */
#define ST_RFDESCAPE 0xfff
@ -1578,6 +1580,7 @@ obj_symbol_new_hook (symbolP)
{
symbolP->ecoff_file = cur_file_ptr;
symbolP->ecoff_symbol = 0;
symbolP->ecoff_undefined = 0;
}
/* Add a page to a varray object. */
@ -2203,6 +2206,8 @@ add_procedure (func)
new_proc_ptr->pdr.isym = -1;
new_proc_ptr->pdr.iline = -1;
new_proc_ptr->pdr.lnLow = -1;
new_proc_ptr->pdr.lnHigh = -1;
/* Push the start of the function. */
new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
@ -2261,6 +2266,17 @@ add_file (file_name, indx)
}
}
/* If we're creating stabs, then we don't actually make a new FDR.
Instead, we just create a stabs symbol. */
if (stabs_seen)
{
(void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
symbol_new ("L0\001", now_seg,
frag_now_fix (), frag_now),
0, MIPS_MARK_STAB (N_SOL));
return;
}
first_ch = *file_name;
/* See if the file has already been created. */
@ -2440,9 +2456,8 @@ obj_ecoff_begin (ignore)
*input_line_pointer = name_end;
/* The line number follows, but we don't use it. */
while (! is_end_of_line[*input_line_pointer])
input_line_pointer++;
input_line_pointer++;
(void) get_absolute_expression ();
demand_empty_rest_of_line ();
}
/* Parse .bend directives which have a label as the first argument
@ -2486,9 +2501,8 @@ obj_ecoff_bend (ignore)
*input_line_pointer = name_end;
/* The line number follows, but we don't use it. */
while (! is_end_of_line[*input_line_pointer])
input_line_pointer++;
input_line_pointer++;
(void) get_absolute_expression ();
demand_empty_rest_of_line ();
}
/* COFF debugging information is provided as a series of directives
@ -3201,7 +3215,6 @@ static void
obj_ecoff_loc (ignore)
int ignore;
{
char buf[20];
lineno_list_t *list;
if (cur_file_ptr == (efdr_t *) NULL)
@ -3223,6 +3236,17 @@ obj_ecoff_loc (ignore)
get_absolute_expression ();
SKIP_WHITESPACE ();
/* If we're building stabs, then output a special label rather than
ECOFF line number info. */
if (stabs_seen)
{
(void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
symbol_new ("L0\001", now_seg,
frag_now_fix (), frag_now),
0, get_absolute_expression ());
return;
}
list = allocate_lineno_list ();
list->next = (lineno_list_t *) NULL;
@ -3395,17 +3419,14 @@ obj_ecoff_stab (type)
value = 0;
st = st_Label;
sc = sc_Undefined;
sc = sc_Text;
}
else
{
/* Skip 0, */
if (get_absolute_expression () != 0)
{
as_warn ("Bad .stab%c directive (expected 0)", type);
demand_empty_rest_of_line ();
return;
}
/* The next number is sometimes the line number of the
declaration. We have nowhere to put it, so we just ignore
it. */
(void) get_absolute_expression ();
SKIP_WHITESPACE ();
if (*input_line_pointer++ != ',')
@ -3442,17 +3463,8 @@ obj_ecoff_stab (type)
sym = symbol_find_or_make (name);
/* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
if (code == N_LBRAC || code == N_RBRAC)
{
sc = sc_Nil;
st = st_Nil;
}
else
{
sc = sc_Undefined;
st = st_Nil;
}
sc = sc_Nil;
st = st_Nil;
value = 0;
*input_line_pointer = name_end;
@ -3512,6 +3524,7 @@ ecoff_longword_adjust (buf, bufend, offset, bufptrptr)
add = 4 - (offset & 3);
if (*bufend - (*buf + offset) < add)
(void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
memset (*buf + offset, 0, add);
offset += add;
if (bufptrptr != (char **) NULL)
*bufptrptr = *buf + offset;
@ -3536,6 +3549,7 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
proc_t *proc;
long c;
long iline;
long totcount;
bufptr = *buf + offset;
@ -3544,11 +3558,28 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
last = (lineno_list_t *) NULL;
c = offset;
iline = 0;
totcount = 0;
for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
{
long count;
long delta;
int didone;
/* Get the offset to the memory address of the next line number
(in words). Do this first, so that we can skip ahead to the
next useful line number entry. */
if (l->next == (lineno_list_t *) NULL)
count = 0;
else
{
count = ((l->next->frag->fr_address + l->next->paddr
- (l->frag->fr_address + l->paddr))
>> 2);
if (count <= 0)
{
/* Don't change last, so we still get the right delta. */
continue;
}
}
if (l->file != file || l->proc != proc)
{
@ -3557,11 +3588,11 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
if (l->file != file && file != (efdr_t *) NULL)
{
file->fdr.cbLine = c - file->fdr.cbLineOffset;
file->fdr.cline = iline - file->fdr.ilineBase;
/* The cline field is ill-documented. This is a guess
at the right value. */
file->fdr.cline = totcount + count;
}
c = ecoff_longword_adjust (buf, bufend, c, &bufptr);
if (l->file != file)
{
file = l->file;
@ -3573,33 +3604,18 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
proc = l->proc;
if (proc != (proc_t *) NULL)
{
/* The iline field is ill-documented. This is a
guess at the right value. */
proc->pdr.iline = l->frag->fr_address + l->paddr;
proc->pdr.lnLow = l->lineno;
proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
/* The iline field is ill-documented. This is a
guess at the right value. */
proc->pdr.iline = totcount;
}
}
last = (lineno_list_t *) NULL;
}
/* Get the offset to the memory address of the next line number
(in words). */
if (l->next == (lineno_list_t *) NULL)
count = 0;
else
{
count = (((l->next->frag->fr_address + l->next->paddr
- (l->frag->fr_address + l->paddr))
>> 2)
- 1);
if (count < 0)
{
/* Don't change last, so we still get the right delta. */
continue;
}
}
totcount += count;
/* Get the offset to this line number. */
if (last == (lineno_list_t *) NULL)
@ -3607,40 +3623,30 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
else
delta = l->lineno - last->lineno;
/* We can only adjust the address by 16 words at a time. */
didone = 0;
while (count > 0x10)
/* Put in the offset to this line number. */
while (delta != 0)
{
if (bufptr >= *bufend)
bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
if (delta >= 7)
int setcount;
/* 1 is added to each count read. */
--count;
/* We can only adjust the word count by up to 15 words at a
time. */
if (count <= 0x0f)
{
*bufptr++ = 0x0f + (7 << 4);
delta -= 7;
}
else if (delta <= -7)
{
*bufptr++ = 0x0f + (-7 << 4);
delta += 7;
setcount = count;
count = 0;
}
else
{
*bufptr++ = 0x0f + (delta << 4);
delta = 0;
setcount = 0x0f;
count -= 0x0f;
}
++c;
count -= 0x10;
didone = 1;
}
/* Put in the offset to this line number. */
while (delta != 0 || ! didone)
{
if (delta >= -7 && delta <= 7)
{
if (bufptr >= *bufend)
bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
*bufptr++ = count + (delta << 4);
*bufptr++ = setcount + (delta << 4);
delta = 0;
++c;
}
@ -3650,7 +3656,7 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
if (*bufend - bufptr < 3)
bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
*bufptr++ = count + (8 << 4);
*bufptr++ = setcount + (8 << 4);
if (delta < -0x8000)
{
set = -0x8000;
@ -3670,8 +3676,26 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
*bufptr++ = set & 0xffff;
c += 3;
}
count = 0;
didone = 1;
}
/* Finish adjusting the count. */
while (count > 0)
{
if (bufptr >= *bufend)
bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
/* 1 is added to each count read. */
--count;
if (count > 0x0f)
{
*bufptr++ = 0x0f;
count -= 0x0f;
}
else
{
*bufptr++ = count;
count = 0;
}
++c;
}
++iline;
@ -3683,7 +3707,7 @@ ecoff_build_lineno (buf, bufend, offset, linecntptr)
if (file != (efdr_t *) NULL)
{
file->fdr.cbLine = c - file->fdr.cbLineOffset;
file->fdr.cline = iline - file->fdr.ilineBase;
file->fdr.cline = totcount;
}
c = ecoff_longword_adjust (buf, bufend, c, &bufptr);
@ -3736,8 +3760,6 @@ ecoff_build_symbols (buf,
efdr_t *fil_ptr;
efdr_t *fil_end;
ifilesym = isym;
if (file_link->next == (vlinks_t *) NULL)
fil_cnt = file_desc.objects_last_page;
else
@ -3749,6 +3771,7 @@ ecoff_build_symbols (buf,
vlinks_t *sym_link;
fil_ptr->fdr.isymBase = isym;
ifilesym = isym;
for (sym_link = fil_ptr->symbols.first;
sym_link != (vlinks_t *) NULL;
sym_link = sym_link->next)
@ -3782,35 +3805,79 @@ ecoff_build_symbols (buf,
as_sym = sym_ptr->as_sym;
if (as_sym != (symbolS *) NULL)
{
sym_ptr->ecoff_sym.value = S_GET_VALUE (as_sym);
symint_t indx;
/* The value of a block start symbol is the
offset from the start of the procedure. For
other symbols we just use the gas value. */
if (sym_ptr->ecoff_sym.st == (int) st_Block
&& sym_ptr->ecoff_sym.sc == (int) sc_Text)
{
know (sym_ptr->proc_ptr != (proc_t *) NULL);
sym_ptr->ecoff_sym.value =
(S_GET_VALUE (as_sym)
- S_GET_VALUE (sym_ptr->proc_ptr->sym->as_sym));
}
else
sym_ptr->ecoff_sym.value = S_GET_VALUE (as_sym);
/* Get the type and storage class based on where
the symbol actually wound up. */
the symbol actually wound up. Traditionally,
N_LBRAC and N_RBRAC are *not* relocated. */
indx = sym_ptr->ecoff_sym.index;
if (sym_ptr->ecoff_sym.st == st_Nil
&& sym_ptr->ecoff_sym.sc == sc_Nil
&& ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
&& (! MIPS_IS_STAB (&sym_ptr->ecoff_sym)
|| ((MIPS_UNMARK_STAB (indx) != N_LBRAC)
&& (MIPS_UNMARK_STAB (indx) != N_RBRAC))))
{
segT seg;
const char *segname;
st_t st;
sc_t sc;
seg = S_GET_SEGMENT (as_sym);
segname = segment_name (seg);
if (S_IS_EXTERNAL (as_sym)
|| ! S_IS_DEFINED (as_sym))
st = st_Global;
else if (S_GET_SEGMENT (as_sym) == text_section)
else if (seg == text_section)
st = st_Label;
else
st = st_Static;
if (! S_IS_DEFINED (as_sym))
sc = sc_Undefined;
if (! S_IS_DEFINED (as_sym)
|| as_sym->ecoff_undefined)
{
if (S_GET_VALUE (as_sym) > 0
&& (S_GET_VALUE (as_sym)
<= bfd_get_gp_size (stdoutput)))
sc = sc_SUndefined;
else
sc = sc_Undefined;
}
else if (S_IS_COMMON (as_sym))
sc = sc_Common;
else if (S_GET_SEGMENT (as_sym) == text_section)
{
if (S_GET_VALUE (as_sym) > 0
&& (S_GET_VALUE (as_sym)
<= bfd_get_gp_size (stdoutput)))
sc = sc_SCommon;
else
sc = sc_Common;
}
else if (seg == text_section)
sc = sc_Text;
else if (S_GET_SEGMENT (as_sym) == data_section)
else if (seg == data_section)
sc = sc_Data;
else if (S_GET_SEGMENT (as_sym) == bss_section)
else if (strcmp (segname, ".rdata") == 0)
sc = sc_RData;
else if (strcmp (segname, ".sdata") == 0)
sc = sc_SData;
else if (seg == bss_section)
sc = sc_Bss;
else if (strcmp (segname, ".sbss") == 0)
sc = sc_SBss;
else
abort ();
@ -3827,13 +3894,17 @@ ecoff_build_symbols (buf,
if ((S_IS_EXTERNAL (as_sym)
|| ! S_IS_DEFINED (as_sym))
&& sym_ptr->proc_ptr == (proc_t *) NULL
&& sym_ptr->ecoff_sym.st != (int) st_Nil)
&& sym_ptr->ecoff_sym.st != (int) st_Nil
&& ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
local = 0;
/* If an st_end symbol has an associated gas
symbol, then it is a local label created for
a .bend or .end directive. */
if (local && sym_ptr->ecoff_sym.st != st_End)
a .bend or .end directive. Stabs line
numbers will have \001 in the names. */
if (local
&& sym_ptr->ecoff_sym.st != st_End
&& strchr (sym_ptr->name, '\001') == 0)
sym_ptr->ecoff_sym.iss =
add_string (&fil_ptr->strings,
fil_ptr->str_hash,
@ -3876,10 +3947,11 @@ ecoff_build_symbols (buf,
}
/* The value of the symbol marking the end of a
procedure or block is the size of the
procedure or block. */
if ((begin_type == st_Proc || begin_type == st_Block)
&& sym_ptr->ecoff_sym.sc != (int) sc_Info)
procedure is the size of the procedure. The
value of the symbol marking the end of a
block is the offset from the start of the
procedure to the block. */
if (begin_type == st_Proc)
{
know (as_sym != (symbolS *) NULL);
know (begin_ptr->as_sym != (symbolS *) NULL);
@ -3887,6 +3959,15 @@ ecoff_build_symbols (buf,
(S_GET_VALUE (as_sym)
- S_GET_VALUE (begin_ptr->as_sym));
}
else if (begin_type == st_Block
&& sym_ptr->ecoff_sym.sc != (int) sc_Info)
{
know (as_sym != (symbolS *) NULL);
know (sym_ptr->proc_ptr != (proc_t *) NULL);
sym_ptr->ecoff_sym.value =
(S_GET_VALUE (as_sym)
- S_GET_VALUE (sym_ptr->proc_ptr->sym->as_sym));
}
}
for (f = sym_ptr->forward_ref;
@ -3908,18 +3989,21 @@ ecoff_build_symbols (buf,
ecoff_swap_sym_out (stdoutput, &sym_ptr->ecoff_sym,
sym_out);
++sym_out;
sym_ptr->sym_index = isym;
++isym;
if (sym_ptr->proc_ptr != (proc_t *) NULL
&& sym_ptr->proc_ptr->sym == sym_ptr)
sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
++isym;
}
/* If this is an external symbol, swap it out. */
if (as_sym != (symbolS *) NULL
&& (S_IS_EXTERNAL (as_sym)
|| ! S_IS_DEFINED (as_sym)))
|| ! S_IS_DEFINED (as_sym))
&& ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
{
EXTR ext;
@ -4325,6 +4409,10 @@ ecoff_frob_file ()
struct hash_control *ext_str_hash;
char *set;
/* Make sure we have a file. */
if (first_file == (efdr_t *) NULL)
add_file ((const char *) NULL, 0);
/* Handle any top level tags. */
for (ptag = top_tag_head->first_tag;
ptag != (tag_t *) NULL;
@ -4477,8 +4565,6 @@ ecoff_frob_file ()
#undef SET
/* FIXME: set the gp value. */
/* FIXME: set the register masks. */
ecoff_data (stdoutput)->raw_size = offset;

3881
gas/config/tc-mips.c
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File diff suppressed because it is too large Load Diff

94
gas/config/tc-mips.h Normal file
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@ -0,0 +1,94 @@
/* tc-mips.c -- header file for tc-mips.c.
Copyright (C) 1993 Free Software Foundation, Inc.
Contributed by the OSF and Ralph Campbell.
Written by Keith Knowles and Ralph Campbell, working independently.
Modified for ECOFF support by Ian Lance Taylor of Cygnus Support.
This file is part of GAS.
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)
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.
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. */
#define TC_MIPS
#define TARGET_ARCH bfd_arch_mips
#define NO_LISTING
#define ONLY_STANDARD_ESCAPES
#define BACKSLASH_V
#define WORKING_DOT_WORD 1
#define OLD_FLOAT_READS
#define LOCAL_LABELS_FB
#ifdef OBJ_ECOFF
#define LOCAL_LABEL(name) ((name)[0] == '$' && (name)[1] == 'L')
#endif
#define md_undefined_symbol(name) (0)
#define md_operand(x)
#define LITTLE_ENDIAN 1234
#define BIG_ENDIAN 4321
/* If neither TARGET_BYTES_BIG_ENDIAN nor TARGET_BYTES_LITTLE_ENDIAN
is specified, default to big endian. */
#ifndef TARGET_BYTES_BIG_ENDIAN
#ifndef TARGET_BYTES_LITTLE_ENDIAN
#define TARGET_BYTES_BIG_ENDIAN
#endif
#endif
#ifdef TARGET_BYTES_BIG_ENDIAN
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#ifndef TARGET_FORMAT
#ifdef OBJ_AOUT
#ifdef TARGET_BYTES_BIG_ENDIAN
#define TARGET_FORMAT "aout-mips-big"
#else
#define TARGET_FORMAT "aout-mips-little"
#endif
#endif /* OBJ_AOUT */
#ifdef OBJ_ECOFF
#ifdef TARGET_BYTES_BIG_ENDIAN
#define TARGET_FORMAT "ecoff-bigmips"
#else
#define TARGET_FORMAT "ecoff-littlemips"
#endif
#endif /* OBJ_ECOFF */
#endif /* ! defined (TARGET_FORMAT) */
struct mips_opcode {
const char *name;
const char *args;
unsigned long match;
unsigned long mask; /* used only for error checking */
unsigned long pinfo; /* Information used for insn/pipeline scheduling. */
};
struct mips_cl_insn {
unsigned long insn_opcode;
const struct mips_opcode *insn_mo;
};
#ifndef BFD_ASSEMBLER
#define md_convert_frag(h,f) {as_fatal ("MIPS convert_frag\n");}
#else
#define md_convert_frag(b,s,f) {as_fatal ("MIPS convert_frag\n");}
#endif
extern int tc_get_register PARAMS ((void));