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[xemacs-hg @ 2002-05-05 11:30:15 by ben] syntax cache, 8-bit-format, lots of code cleanup README.packages: Update info about --package-path. i.c: Create an inheritable event and pass it on to XEmacs, so that ^C can be handled properly. Intercept ^C and signal the event. "Stop Build" in VC++ now works. bytecomp-runtime.el: Doc string changes. compat.el: Some attempts to redo this to make it truly useful and fix the "multiple versions interacting with each other" problem. Not yet done. Currently doesn't work. files.el: Use with-obsolete-variable to avoid warnings in new revert-buffer code. xemacs.mak: Split up CFLAGS into a version without flags specifying the C library. The problem seems to be that minitar depends on zlib, which depends specifically on libc.lib, not on any of the other C libraries. Unless you compile with libc.lib, you get errors -- specifically, no _errno in the other libraries, which must make it something other than an int. (#### But this doesn't seem to obtain in XEmacs, which also uses zlib, and can be linked with any of the C libraries. Maybe zlib is used differently and doesn't need errno, or maybe XEmacs provides an int errno; ... I don't understand. Makefile.in.in: Fix so that packages are around when testing. abbrev.c, alloc.c, buffer.c, buffer.h, bytecode.c, callint.c, casefiddle.c, casetab.c, casetab.h, charset.h, chartab.c, chartab.h, cmds.c, console-msw.h, console-stream.c, console-x.c, console.c, console.h, data.c, device-msw.c, device.c, device.h, dialog-msw.c, dialog-x.c, dired-msw.c, dired.c, doc.c, doprnt.c, dumper.c, editfns.c, elhash.c, emacs.c, eval.c, event-Xt.c, event-gtk.c, event-msw.c, event-stream.c, events.c, events.h, extents.c, extents.h, faces.c, file-coding.c, file-coding.h, fileio.c, fns.c, font-lock.c, frame-gtk.c, frame-msw.c, frame-x.c, frame.c, frame.h, glade.c, glyphs-gtk.c, glyphs-msw.c, glyphs-msw.h, glyphs-x.c, glyphs.c, glyphs.h, gui-msw.c, gui-x.c, gui.h, gutter.h, hash.h, indent.c, insdel.c, intl-win32.c, intl.c, keymap.c, lisp-disunion.h, lisp-union.h, lisp.h, lread.c, lrecord.h, lstream.c, lstream.h, marker.c, menubar-gtk.c, menubar-msw.c, menubar-x.c, menubar.c, minibuf.c, mule-ccl.c, mule-charset.c, mule-coding.c, mule-wnnfns.c, nas.c, objects-msw.c, objects-x.c, opaque.c, postgresql.c, print.c, process-nt.c, process-unix.c, process.c, process.h, profile.c, rangetab.c, redisplay-gtk.c, redisplay-msw.c, redisplay-output.c, redisplay-x.c, redisplay.c, redisplay.h, regex.c, regex.h, scrollbar-msw.c, search.c, select-x.c, specifier.c, specifier.h, symbols.c, symsinit.h, syntax.c, syntax.h, syswindows.h, tests.c, text.c, text.h, tooltalk.c, ui-byhand.c, ui-gtk.c, unicode.c, win32.c, window.c: Another big Ben patch. -- FUNCTIONALITY CHANGES: add partial support for 8-bit-fixed, 16-bit-fixed, and 32-bit-fixed formats. not quite done yet. (in particular, needs functions to actually convert the buffer.) NOTE: lots of changes to regex.c here. also, many new *_fmt() inline funs that take an Internal_Format argument. redo syntax cache code. make the cache per-buffer; keep the cache valid across calls to functions that use it. also keep it valid across insertions/deletions and extent changes, as much as is possible. eliminate the junky regex-reentrancy code by passing in the relevant lisp info to the regex routines as local vars. add general mechanism in extents code for signalling extent changes. fix numerous problems with the case-table implementation; yoshiki never properly transferred many algorithms from old-style to new-style case tables. redo char tables to support a default argument, so that mapping only occurs over changed args. change many chartab functions to accept Lisp_Object instead of Lisp_Char_Table *. comment out the code in font-lock.c by default, because font-lock.el no longer uses it. we should consider eliminating it entirely. Don't output bell as ^G in console-stream when not a TTY. add -mswindows-termination-handle to interface with i.c, so we can properly kill a build. add more error-checking to buffer/string macros. add some additional buffer_or_string_() funs. -- INTERFACE CHANGES AFFECTING MORE CODE: switch the arguments of write_c_string and friends to be consistent with write_fmt_string, which must have printcharfun first. change BI_* macros to BYTE_* for increased clarity; similarly for bi_* local vars. change VOID_TO_LISP to be a one-argument function. eliminate no-longer-needed CVOID_TO_LISP. -- char/string macro changes: rename MAKE_CHAR() to make_emchar() for slightly less confusion with make_char(). (The former generates an Emchar, the latter a Lisp object. Conceivably we should rename make_char() -> wrap_char() and similarly for make_int(), make_float().) Similar changes for other *CHAR* macros -- we now consistently use names with `emchar' whenever we are working with Emchars. Any remaining name with just `char' always refers to a Lisp object. rename macros with XSTRING_* to string_* except for those that reference actual fields in the Lisp_String object, following conventions used elsewhere. rename set_string_{data,length} macros (the only ones to work with a Lisp_String_* instead of a Lisp_Object) to set_lispstringp_* to make the difference clear. try to be consistent about caps vs. lowercase in macro/inline-fun names for chars and such, which wasn't the case before. we now reserve caps either for XFOO_ macros that reference object fields (e.g. XSTRING_DATA) or for things that have non-function semantics, e.g. directly modifying an arg (BREAKUP_EMCHAR) or evaluating an arg (any arg) more than once. otherwise, use lowercase. here is a summary of most of the macros/inline funs changed by all of the above changes: BYTE_*_P -> byte_*_p XSTRING_BYTE -> string_byte set_string_data/length -> set_lispstringp_data/length XSTRING_CHAR_LENGTH -> string_char_length XSTRING_CHAR -> string_emchar INTBYTE_FIRST_BYTE_P -> intbyte_first_byte_p INTBYTE_LEADING_BYTE_P -> intbyte_leading_byte_p charptr_copy_char -> charptr_copy_emchar LEADING_BYTE_* -> leading_byte_* CHAR_* -> EMCHAR_* *_CHAR_* -> *_EMCHAR_* *_CHAR -> *_EMCHAR CHARSET_BY_ -> charset_by_* BYTE_SHIFT_JIS* -> byte_shift_jis* BYTE_BIG5* -> byte_big5* REP_BYTES_BY_FIRST_BYTE -> rep_bytes_by_first_byte char_to_unicode -> emchar_to_unicode valid_char_p -> valid_emchar_p Change intbyte_strcmp -> qxestrcmp_c (duplicated functionality). -- INTERFACE CHANGES AFFECTING LESS CODE: use DECLARE_INLINE_HEADER in various places. remove '#ifdef emacs' from XEmacs-only files. eliminate CHAR_TABLE_VALUE(), which duplicated the functionality of get_char_table(). add BUFFER_TEXT_LOOP to simplify iterations over buffer text. define typedefs for signed and unsigned types of fixed sizes (INT_32_BIT, UINT_32_BIT, etc.). create ALIGN_FOR_TYPE as a higher-level interface onto ALIGN_SIZE; fix code to use it. add charptr_emchar_len to return the text length of the character pointed to by a ptr; use it in place of charcount_to_bytecount(..., 1). add emchar_len to return the text length of a given character. add types Bytexpos and Charxpos to generalize Bytebpos/Bytecount and Charbpos/Charcount, in code (particularly, the extents code and redisplay code) that works with either kind of index. rename redisplay struct params with names such as `charbpos' to e.g. `charpos' when they are e.g. a Charxpos, not a Charbpos. eliminate xxDEFUN in place of DEFUN; no longer necessary with changes awhile back to doc.c. split up big ugly combined list of EXFUNs in lisp.h on a file-by-file basis, since other prototypes are similarly split. rewrite some "*_UNSAFE" macros as inline funs and eliminate the _UNSAFE suffix. move most string code from lisp.h to text.h; the string code and text.h code is now intertwined in such a fashion that they need to be in the same place and partially interleaved. (you can't create forward references for inline funs) automated/lisp-tests.el, automated/symbol-tests.el, automated/test-harness.el: Fix test harness to output FAIL messages to stderr when in batch mode. Fix up some problems in lisp-tests/symbol-tests that were causing spurious failures.
author ben
date Sun, 05 May 2002 11:33:57 +0000
parents 943eaba38521
children 8b464283e891
line wrap: on
line source

/* C code startup routine.
   Copyright (C) 1985, 1986, 1992, 1993 Free Software Foundation, Inc.

This file is part of XEmacs.

XEmacs 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.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: FSF 19.30. */


/* [[The standard Vax 4.2 Unix crt0.c cannot be used for Emacs
   because it makes `environ' an initialized variable.
   It is easiest to have a special crt0.c on all machines
   though I don't know whether other machines actually need it.]]
   This is insane!  We DO NOT want to be doing this crap. */

/* On the vax and 68000, in BSD4.2 and USG5.2,
   this is the data format on startup:
  (vax) ap and fp are unpredictable as far as I know; don't use them.
  sp ->  word containing argc
         word pointing to first arg string
	 [word pointing to next arg string]... 0 or more times
	 0
Optionally:
	 [word pointing to environment variable]... 1 or more times
	 ...
	 0
And always:
	 first arg string
	 [next arg string]... 0 or more times
*/

/* On the 16000, at least in the one 4.2 system I know about,
  the initial data format is
  sp ->  word containing argc
         word containing argp
         word pointing to first arg string, and so on as above
*/

#ifdef emacs
#include <config.h>
#endif

#ifdef __GNUC__
#define asm __asm
#endif

/* Workaround for Sun cc 3.0, which doesn't handle asm's outside a fn. */
#if __SUNPRO_C >= 0x300
#define no_toplevel_asm
#endif

/*		********  WARNING ********
    Do not insert any data definitions before data_start!
    Since this is the first file linked, the address of the following
    variable should correspond to the start of initialized data space.
    On some systems this is a constant that is independent of the text
    size for shared executables.  On others, it is a function of the
    text size. In short, this seems to be the most portable way to
    discover the start of initialized data space dynamically at runtime,
    for either shared or unshared executables, on either swapping or
    virtual systems.  It only requires that the linker allocate objects
    in the order encountered, a reasonable model for most Unix systems.
    Similarly, note that the address of _start() should be the start
    of text space.   Fred Fish, UniSoft Systems Inc.  */

int data_start = 0;

#ifdef NEED_ERRNO
int errno;
#endif

#ifndef DONT_NEED_ENVIRON
char **environ;
#endif

#ifndef static
/* On systems where the static storage class is usable, this function
   should be declared as static.  Otherwise, the static keyword has
   been defined to be something else, and code for those systems must
   take care of this declaration appropriately.  */
static start1 ();
#endif

#ifdef APOLLO
extern	char   *malloc(), *realloc(), *(*_libc_malloc) (), *(*_libc_realloc)();
extern	void	free(),	(*_libc_free) (); extern int main();
std_$call void  unix_$main();

_start()
{
	_libc_malloc = malloc;
	_libc_realloc = realloc;
	_libc_free = free;
	unix_$main(main);	/* no return */
}
#endif /* APOLLO */

#if defined(orion) || defined(pyramid) || defined(celerity) || defined(ALLIANT) || defined(clipper) || defined(sps7)

#if defined(sps7) && defined(V3x)
        asm("	section	10");
        asm("	ds.b	0xb0");
#endif

#ifdef ALLIANT
/* _start must initialize _curbrk and _minbrk on the first startup;
   when starting up after dumping, it must initialize them to what they were
   before the dumping, since they are in the shared library and
   are not dumped.  See ADJUST_EXEC_HEADER in m-alliant.h.  */
extern unsigned char *_curbrk, *_minbrk;
extern unsigned char end;
unsigned char *_setbrk = &end;
#ifdef ALLIANT_2800
unsigned char *_end = &end;
#endif
#endif

#ifndef DUMMIES
#define DUMMIES
#endif

_start (DUMMIES argc, argv, envp)
     int argc;
     char **argv, **envp;
{
#ifdef ALLIANT
#ifdef ALLIANT_2800
  _curbrk = _end;
  _minbrk = _end;
#else
  _curbrk = _setbrk;
  _minbrk = _setbrk;
#endif
#endif

  environ = envp;

  exit (main (argc, argv, envp));
}

#endif /* orion or pyramid or celerity or alliant or clipper */

#if defined (ns16000) && !defined (sequent) && !defined (UMAX) && !defined (CRT0_DUMMIES)

_start ()
{
/* On 16000, _start pushes fp onto stack */
  start1 ();
}

/* ignore takes care of skipping the fp value pushed in start.  */
static
start1 (ignore, argc, argv)
     int ignore;
     int argc;
     char **argv;
{
  environ = argv + argc + 1;

  if (environ == *argv)
    environ--;
  exit (main (argc, argv, environ));
}
#endif /* ns16000, not sequent and not UMAX, and not the CRT0_DUMMIES method */

#ifdef UMAX
_start()
{
	asm("	exit []			# undo enter");
	asm("	.set	exitsc,1");
	asm("	.set	sigcatchall,0x400");

	asm("	.globl	_exit");
	asm("	.globl	start");
	asm("	.globl	__start");
	asm("	.globl	_main");
	asm("	.globl	_environ");
	asm("	.globl	_sigvec");
	asm("	.globl	sigentry");

	asm("start:");
	asm("	br	.xstart");
	asm("	.org	0x20");
	asm("	.double	p_glbl,0,0xf00000,0");
	asm("	.org	0x30");
	asm(".xstart:");
	asm("	adjspb	$8");
	asm("	movd	8(sp),0(sp)	# argc");
	asm("	addr	12(sp),r0");
	asm("	movd	r0,4(sp)	# argv");
	asm("L1:");
	asm("	movd	r0,r1");
	asm("	addqd	$4,r0");
	asm("	cmpqd	$0,0(r1)	# null args term ?");
	asm("	bne	L1");
	asm("	cmpd	r0,0(4(sp))	# end of 'env' or 'argv' ?");
	asm("	blt	L2");
	asm("	addqd	$-4,r0		# envp's are in list");
	asm("L2:");
	asm("	movd	r0,8(sp)	# env");
	asm("	movd	r0,@_environ	# indir is 0 if no env ; not 0 if env");
	asm("	movqd	$0,tos		# setup intermediate signal handler");
	asm("	addr	@sv,tos");
	asm("	movzwd	$sigcatchall,tos");
	asm("	jsr	@_sigvec");
	asm("	adjspb	$-12");
	asm("	jsr	@_main");
	asm("	adjspb	$-12");
	asm("	movd	r0,tos");
	asm("	jsr	@_exit");
	asm("	adjspb	$-4");
	asm("	addr	@exitsc,r0");
	asm("	svc");
	asm("	.align	4		# sigvec arg");
	asm("sv:");
	asm("	.double	sigentry");
	asm("	.double	0");
	asm("	.double	0");

	asm("	.comm	p_glbl,1");
}
#endif /* UMAX */

#ifdef CRT0_DUMMIES

/* Define symbol "start": here; some systems want that symbol.  */
#ifdef DOT_GLOBAL_START
asm("	.text		");
asm("	.globl start	");
asm("	start:		");
#endif /* DOT_GLOBAL_START */

#ifdef NODOT_GLOBAL_START
asm("	text		");
asm("	global start	");
asm("	start:		");
#endif /* NODOT_GLOBAL_START */

#ifdef m68000

/* GCC 2.1, when optimization is turned off, seems to want to push a
   word of garbage on the stack, which screws up the CRT0_DUMMIES
   hack.  So we hand-code _start in assembly language.  */
asm(".text			");
#ifndef sony_news
  asm("	.even			");
#else /* sony_news (not gas) */
+ asm("	.align 2		");
#endif /* sony_news (not gas) */
asm(".globl __start		");
asm("__start:			");
asm("	link a6,#0		");
asm("	jbsr _start1		");
asm("	unlk a6			");
asm("	rts			");

#else /* not m68000 */

int
_start ()
{
/* On vax, nothing is pushed here  */
/* On sequent, bogus fp is pushed here  */
  start1 ();
}

#endif /* possibly m68000 */

#ifdef __bsdi__ /* for version number */
#include <sys/param.h>
#endif
#if defined(_BSDI_VERSION) && (_BSDI_VERSION >= 199501)
char *__progname;
#endif
static int
start1 (CRT0_DUMMIES int argc, char *xargv)
{
  char **argv = &xargv;
  environ = argv + argc + 1;
#if defined(_BSDI_VERSION) && (_BSDI_VERSION >= 199501)
  __progname = argv[0];
#endif

  if ((char *)environ == xargv)
    environ--;
  exit (main (argc, argv, environ));

  /* Refer to `start1' so GCC will not think it is never called
     and optimize it out.  */
  (void) &start1;
}
#else /* not CRT0_DUMMIES */

/* "m68k" and "m68000" both stand for m68000 processors,
   but with different program-entry conventions.
   This is a kludge.  Now that the CRT0_DUMMIES mechanism above exists,
   most of these machines could use the vax code above
   with some suitable definition of CRT0_DUMMIES.
   Then the symbol m68k could be flushed.
   But I don't want to risk breaking these machines
   in a version 17 patch release, so that change is being put off.  */

#ifdef m68k			/* Can't do it all from C */
	asm ("	global	_start");
	asm ("	text");
	asm ("_start:");
#ifndef NU
#ifdef STRIDE
	asm ("	comm	havefpu%,2");
#else /* m68k, not STRIDE */
	asm ("  comm	splimit%,4");
#endif /* STRIDE */
	asm ("	global	exit");
	asm ("	text");
#ifdef STRIDE
	asm ("	trap	&3");
	asm ("	mov.w	%d0,havefpu%");
#else /* m68k, not STRIDE */
  	asm ("	mov.l	%d0,splimit%");
#endif /* STRIDE */
#endif /* not NU */
	asm ("	jsr	start1");
	asm ("	mov.l	%d0,(%sp)");
	asm ("	jsr	exit");
	asm ("	mov.l	&1,%d0");	/* d0 = 1 => exit */
	asm ("	trap	&0");
#else /* m68000, not m68k */

#ifdef m68000

#ifdef ISI68K
/* Added by ESM Sun May 24 12:44:02 1987 to get new ISI library to work */
/* Edited by Ray Mon May 15 15:59:56 EST 1989 so we can compile with gcc */
#if defined(BSD4_3) && !defined(__GNUC__)
static foo () {
#endif
	asm ("	.globl  is68020");
	asm ("is68020:");
#ifndef BSD4_3
	asm ("	.long   0x00000000");
	asm ("	.long   0xffffffff");
/* End of stuff added by ESM */
#endif
	asm ("	.text");
	asm ("	.globl	__start");
	asm ("__start:");
	asm ("	.word 0");
	asm ("	link	a6,#0");
	asm ("	jbsr	_start1");
	asm ("	unlk	a6");
	asm ("	rts");
#if defined(BSD4_3) && !defined(__GNUC__)
      }
#endif
#else /* not ISI68K */

_start ()
{
#ifdef sun
#ifdef LISP_FLOAT_TYPE
  finitfp_();
#endif
#endif     
/* On 68000, _start pushes a6 onto stack  */
  start1 ();
}
#endif /* not ISI68k */
#endif /* m68000 */
#endif /* m68k */

#if defined(m68k) || defined(m68000)
/* ignore takes care of skipping the a6 value pushed in start.  */
static
#if defined(m68k)
start1 (argc, xargv)
#else
start1 (ignore, argc, xargv)
#endif
     int argc;
     char *xargv;
{
  char **argv = &xargv;
  environ = argv + argc + 1;

  if ((char *)environ == xargv)
    environ--;
#ifdef sun_68881
  asm("    jsr     f68881_used");
#endif
#ifdef sun_fpa
  asm("    jsr     ffpa_used");
#endif
#ifdef sun_soft
  asm("    jsr     start_float");
#endif
  exit (main (argc, argv, environ));
}

#endif /* m68k or m68000 */

#endif /* not CRT0_DUMMIES */

#ifdef hp9000s300
int argc_value;
char **argv_value;
#ifdef OLD_HP_ASSEMBLER
	asm("   text");
	asm("	globl __start");
	asm("	globl _exit");
	asm("	globl _main");
	asm("__start");
	asm("	dc.l	0");
	asm("	subq.w	#0x1,d0");
	asm("	move.w	d0,float_soft");
	asm("	move.l	0x4(a7),d0");
	asm("	beq.s	skip_1");
	asm("	move.l	d0,a0");
	asm("	clr.l	-0x4(a0)");
	asm("skip_1");
	asm("	move.l	a7,a0");
	asm("	subq.l	#0x8,a7");
	asm("	move.l	(a0),(a7)");
	asm("	move.l	(a0),_argc_value");
	asm("	addq.l	#0x4,a0");
	asm("	move.l	a0,0x4(a7)");
	asm("	move.l	a0,_argv_value");
	asm("incr_loop");
	asm("	tst.l	(a0)+");
	asm("	bne.s	incr_loop");
	asm("	move.l	0x4(a7),a1");
	asm("	cmp.l	(a1),a0");
	asm("	blt.s	skip_2");
	asm("	subq.l	#0x4,a0");
	asm("skip_2");
	asm("	move.l	a0,0x8(a7)");
	asm("	move.l	a0,_environ");
	asm("	jsr	_main");
	asm("	addq.l	#0x8,a7");
	asm("	move.l	d0,-(a7)");
	asm("	jsr	_exit");
	asm("	move.w	#0x1,d0");
	asm("	trap	#0x0");
	asm("	comm	float_soft,4");
/* float_soft is allocated in this way because C would
   put an underscore character in its name otherwise. */

#else /* new hp assembler */

	asm("	text");
        asm("   global  float_loc");
        asm("   set     float_loc,0xFFFFB000");
 	asm("	global	fpa_loc");
	asm("	set	fpa_loc,0xfff08000");
	asm("	global	__start");
	asm("	global	_exit");
	asm("	global	_main");
	asm("__start:");
	asm("	byte	0,0,0,0");
	asm("	subq.w	&1,%d0");
	asm("	mov.w	%d0,float_soft");
	asm("	mov.w	%d1,flag_68881");
#ifndef HPUX_68010
	asm("	beq.b	skip_float");
	asm("	fmov.l	&0x7400,%fpcr");
/*	asm("	fmov.l	&0x7480,%fpcr"); */
#endif /* HPUX_68010 */
	asm("skip_float:");
	asm("	mov.l	%a0,%d0");
	asm("	add.l	%d0,%d0");
	asm("	subx.w	%d1,%d1");
	asm("	mov.w	%d1,flag_68010");
	asm("	add.l	%d0,%d0");
	asm("	subx.w	%d1,%d1");
	asm("	mov.w	%d1,flag_fpa");
	asm("	tst.l	%d2");
	asm("	ble.b	skip_3");
	asm("	lsl	flag_68881");
	asm("	lsl	flag_fpa");
	asm("skip_3:");
	asm("	mov.l	4(%a7),%d0");
	asm("	beq.b	skip_1");
	asm("	mov.l	%d0,%a0");
	asm("	clr.l	-4(%a0)");
	asm("skip_1:");
	asm("	mov.l	%a7,%a0");
	asm("	subq.l	&8,%a7");
	asm("	mov.l	(%a0),(%a7)");
	asm("	mov.l	(%a0),_argc_value");
	asm("	addq.l	&4,%a0");
	asm("	mov.l	%a0,4(%a7)");
	asm("	mov.l	%a0,_argv_value");
	asm("incr_loop:");
	asm("	tst.l	(%a0)+");
	asm("	bne.b	incr_loop");
	asm("	mov.l	4(%a7),%a1");
	asm("	cmp.l	%a0,(%a1)");
	asm("	blt.b	skip_2");
	asm("	subq.l	&4,%a0");
	asm("skip_2:");
	asm("	mov.l	%a0,8(%a7)");
	asm("	mov.l	%a0,_environ");
	asm("	jsr	_main");
	asm("	addq.l	&8,%a7");
	asm("	mov.l	%d0,-(%a7)");
	asm("	jsr	_exit");
	asm("	mov.w	&1,%d0");
	asm("	trap	&0");
	asm("	comm	float_soft, 4");
	asm("	comm	flag_68881, 4");
	asm("	comm	flag_68010, 4");
	asm("	comm	flag_68040, 4");
	asm("	comm	flag_fpa, 4");

#endif /* new hp assembler */
#endif /* hp9000s300 */

#ifdef GOULD

/* startup code has to be in near text rather
   than fartext as allocated by the C compiler. */
	asm("	.text");
	asm("	.align	2");
	asm("	.globl	__start");
	asm("	.text");
	asm("__start:");
/* setup base register b1 (function base). */
	asm("	.using	b1,.");
	asm("	tpcbr	b1");
/* setup base registers b3 through b7 (data references). */
	asm("	file	basevals,b3");
/* setup base register b2 (stack pointer); it should be
   aligned on a 8-word boundary; but because it is pointing
   to argc, its value should be remembered (in r5). */
	asm("	movw	b2,r4");
	asm("	movw	b2,r5");
	asm("	andw	#~0x1f,r4");
	asm("	movw	r4,b2");
/* allocate stack frame to do some work. */
	asm("	subea	16w,b2");
/* initialize signal catching for UTX/32 1.2; this is
   necessary to make restart from saved image work. */
	asm("	movea	sigcatch,r1");
	asm("	movw	r1,8w[b2]");
	asm("	svc	#1,#150");
/* setup address of argc for start1. */
	asm("	movw	r5,8w[b2]");
	asm("   func	#1,_start1");
	asm("	halt");
/* space for ld to store base register initial values. */
	asm("	.align	5");
	asm("basevals:");
	asm("	.word	__base3,__base4,__base5,__base6,__base7");

static
start1 (xargc)
     int *xargc;
{
  int	argc;
  char **argv;

  argc = *xargc;
  argv = (char **)(xargc) + 1;
  environ = argv + argc + 1;

  if (environ == argv)
    environ--;
  exit (main (argc, argv, environ));

}

#endif /* GOULD */

#ifdef elxsi
#include <elxsi/argvcache.h>

extern char **environ;
extern int	errno;
extern void	_init_doscan(), _init_iob();
extern char	end[];
char		*_init_brk = end;

_start()
{
  environ = exec_cache.ac_envp;
  brk (_init_brk);
  errno = 0;
  _init_doscan ();
  _init_iob ();
  _exit (exit (main (exec_cache.ac_argc,
		     exec_cache.ac_argv,
		     exec_cache.ac_envp)));
}
#endif /* elxsi */


#ifdef sparc
#ifdef no_toplevel_asm
static no_toplevel_asm_wrapper() {
#ifdef USG5_4
asm (".pushsection \".text\"");
#endif /* USG5_4 */
#endif /* no_toplevel_asm */
#ifdef USG5_4
asm (".global _start");
asm (".text");
asm ("_start:");
asm ("	mov	0, %fp");
asm ("	ld	[%sp + 64], %o0");
asm ("	add	%sp, 68, %o1");
asm ("	sll	%o0, 2,	%o2");
asm ("	add	%o2, 4,	%o2");
asm ("	add	%o1, %o2, %o2");
asm ("	sethi	%hi(_environ), %o3");
asm ("	st	%o2, [%o3+%lo(_environ)]");
asm ("	andn	%sp, 7,	%sp");
asm ("	call	main");
asm ("	sub	%sp, 24, %sp");
asm ("	call	_exit");
asm ("	nop");
#else
asm (".global __start");
asm (".text");
asm ("__start:");
asm ("	mov	0, %fp");
asm ("	ld	[%sp + 64], %o0");
asm ("	add	%sp, 68, %o1");
asm ("	sll	%o0, 2,	%o2");
asm ("	add	%o2, 4,	%o2");
asm ("	add	%o1, %o2, %o2");
asm ("	sethi	%hi(_environ), %o3");
asm ("	st	%o2, [%o3+%lo(_environ)]");
asm ("	andn	%sp, 7,	%sp");
asm ("	call	_main");
asm ("	sub	%sp, 24, %sp");
asm ("	call	__exit");
asm ("	nop");
#endif /* USG5_4 */
#ifdef no_toplevel_asm
#ifdef USG5_4
asm (".popsection");
#endif /* USG5_4 */
} /* no_toplevel_asm_wrapper() */
#endif /* no_toplevel_asm */
#endif /* sparc */

#if __FreeBSD__ == 2
char *__progname;
#endif
#ifdef __bsdi__
#include <sys/param.h> /* for version number */
#if defined(_BSDI_VERSION) && (_BSDI_VERSION >= 199501)
char *__progname;
#endif
#endif /* __bsdi__ */