update from main arhive 970119cvs/libc-970120

Mon Jan 20 03:02:50 1997  Ulrich Drepper  <drepper@cygnus.com>

	* Make-dist: Update and reformat copyright.
	* Makeconfig: Likewise.
	* assert/Makefile: Likewise.
	* bare/Makefile: Likewise.
	* ctype/Makefile: Likewise.
	* dirent/Makefile: Likewise.
	* gmon/Makefile: Likewise.
	* gnulib/Makefile: Likewise.
	* grp/Makefile: Likewise.
	* hurd/Makefile: Likewise.
	* intl/Makefile: Likewise.
	* mach/Makefile: Likewise.
	* malloc/Makefile: Likewise.
	* manual/Makefile: Likewise.
	* math/Makefile: Likewise.
	* po/Makefile: Likewise.
	* pwd/Makefile: Likewise.
	* resource/Makefile: Likewise.
	* setjmp/Makefile: Likewise.
	* socket/Makefile: Likewise.
	* string/Makefile: Likewise.
	* sunrpc/Makefile: Likewise.
	* sysdeps/alpha/Makefile: Likewise.
	* sysdeps/gnu/Makefile: Likewise.
	* sysdeps/m68k/fpu/switch/Makefile: Likewise.
	* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
	* sysdeps/m68k/fpu/switch/switch.c: Likewise.
	* sysdeps/mach/Makefile: Likewise.
	* sysdeps/hurd/Makefile: Likewise.
	* sysdeps/sparc/Makefile: Likewise.
	* sysdeps/standalone/i960/nindy960/Makefile: Likewise.
	* sysdeps/standalone/m68k/m68020/mvme136/Makefile: Likewise.
	* sysdeps/unix/common/Makefile: Likewise.
	* sysdeps/unix/sysv/Makefile: Likewise.
	* sysdeps/unix/sysv/irix4/Makefile: Likewise.
	* sysdeps/unix/sysv/sco3.2/Makefile: Likewise.
	* sysdeps/unix/sysv/sysv4/Makefile: Likewise.
	* sysdeps/vax/Makefile: Likewise.
	* sysvipc/Makefile: Likewise.
	* wcsmbs/Makefile: Likewise.
	* wctype/Makefile: Likewise.
	* elf/rtld.c (dl_main): Objects in LD_PRELOAD environment variable
	are separated according to Sun docs by white space not colon.
	* locale/C-time.c (_nl_C_LC_TIME): Use empty string to initialize
	fields which are not defined for the C locale.
	* sysdeps/m68k/fpu/switch/Makefile: Don't use ansidecl.h in constructed
	files.
	* sysdeps/m68k/fpu/switch/68881-sw.h: Likewise.
	* sysdeps/m68k/fpu/switch/switch.c: Likewise.
Sun Jan 19 19:43:31 1997  Andreas Jaeger  <aj@arthur.pfalz.de>
	* time/strptime.c: Provide prototype for strptime_internal.
Sun Jan 19 23:46:27 1997  Ulrich Drepper  <drepper@cygnus.com>
	* glibcbug.in: We don't guarantee confidential handling.  Set
	field to always contain `no'.
Sun Jan 19 21:28:01 1997  Philippe De Muyter  <phdm@info.ucl.ac.be>

	* intl/explodename.c: Include sys/types.h.
	* intl/l10nflist.c: Likewise.

Sat Jan 18 22:15:26 1997  Richard Henderson  <rth@tamu.edu>

	* config.make.in (install_root): New variable to make it easy to
	install glibc somewhere other than /.

	* shlib-versions: alpha-*-linux-* libc=6.1.

	Since sigset_t no longer fits in a register, we can't pass in the
	thread's initial mask so easily.  Take this opportunity to simplify
	the clone implementation by only accepting a single void* argument.

	* sysdeps/unix/sysv/linux/alpha/clone.S: Only take one argument.
	* sysdeps/unix/sysv/linux/i386/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/m68k/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/schedbits.h: Update clone prototypes.

	* sysdeps/unix/sysv/linux/alpha/ioctl-types.h: Remove.
	Default Linux version should be sufficient.

	* sysdeps/unix/sysv/linux/alpha/sigprocmask.c: The osf_sigprocmask
	system call wants the sigset dereferenced.

	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Add entries for
	__syscall_ustat and __syscall_xmknod.
	* sysdeps/unix/sysv/linux/alpha/xmknod.c: Include sys/sysmacros.h.

	* sysdeps/unix/sysv/linux/sigset.h: Use longs instead of ints.

	* sysdeps/unix/sysv/linux/tcsetattr.c: Fix pointer dereferences.

	* sysdeps/unix/sysv/linux/alpha/sigsuspend.c: Add comment about
	dependency to kernel type.

	* sysdeps/unix/sysv/linux/alpha/termbits.h: Correct comment.

1 files changed, 9 insertions, 45 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/clone.S b/sysdeps/unix/sysv/linux/alpha/clone.S
index 03ecddc727..261bd81e57 100644
--- a/sysdeps/unix/sysv/linux/alpha/clone.S
+++ b/sysdeps/unix/sysv/linux/alpha/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
@@ -24,15 +24,11 @@
 #define _ERRNO_H	1
 #include <errnos.h>
 
-/* int clone(int (*fn)(), void *child_stack, int flags, int nargs, ...) */
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg) */
 
         .text
 ENTRY(__clone)
-	lda	sp,-16(sp)
-	.frame	sp,16,$26,0
-	/* Save rest of argument registers for varargs-type work.  */
-	stq	a4,0(sp)
-	stq	a5,8(sp)
+	.frame	sp,0,ra,0
 #ifdef PROF
 	.set noat
 	lda	AT, _mcount
@@ -42,24 +38,13 @@ ENTRY(__clone)
 	.prologue 1
 
 	/* Sanity check arguments.  */
-	sextl	a3,a3
 	ldiq	v0,EINVAL
 	beq	a0,$error		/* no NULL function pointers */
 	beq	a1,$error		/* no NULL stack pointers */
-	blt	a3,$error		/* no negative argument counts */
-
-	/* Allocate space on the new stack and copy args over */
-	mov	a3,t0			/* save nargs for thread_start */
-	s8addq	a3,sp,t1
-1:	ldq	t2,-8(t1)
-	subq	t1,8,t1
-	stq	t2,-8(a1)
-	subq	a3,1,a3
-	subq	a1,8,a1
-	bne	a3,1b
 
 	/* Do the system call */
 	mov	a0,pv			/* get fn ptr out of the way */
+	mov	a3,a4			/* get fn arg out of the way */
 	mov	a2,a0
 	ldiq	v0,__NR_clone
 	call_pal PAL_callsys
@@ -68,23 +53,19 @@ ENTRY(__clone)
 	beq	v0,thread_start
 
 	/* Successful return from the parent */
-	lda	sp,16(sp)
 	ret
 
 	/* Something bad happened -- no child created */
 $error:
 	br	gp,1f
 1:	ldgp	gp,0(gp)
-	lda	sp,16(sp)
 	jmp	zero,__syscall_error
 
 	END(__clone)
 
 /* Load up the arguments to the function.  Put this block of code in
    its own function so that we can terminate the stack trace with our
-   debug info.
-
-   At this point we have $t0=nargs, $pv=fn, $sp=&arg[0].  */
+   debug info.  */
 
 	.ent thread_start
 thread_start:
@@ -92,28 +73,8 @@ thread_start:
 	mov	zero,fp
 	.prologue 0
 
-	/* Calculate address of jump into argument loading code */
-	cmple	t0,6,t2		/* no more than 6 args in registers */
-	cmoveq	t2,6,t0
-	br	v0,1f		/* find address of arg0 */
-1:	lda	v0,$arg0-1b(v0)
-	s4addq	t0,zero,t1
-	subq	v0,t1,v0
-	jmp	(v0)
-
-	/* Load the integer register arguments */
-	ldq	a5,40(sp)
-	ldq	a4,32(sp)
-	ldq	a3,24(sp)
-	ldq	a2,16(sp)
-	ldq	a1,8(sp)
-	ldq	a0,0(sp)
-$arg0:
-
-	/* Adjust stack to remove the arguments we just loaded */
-	s8addq	t0,sp,sp
-
 	/* Call the user's function */
+	mov	a4,a0
 	jsr	ra,(pv)
 	ldgp	gp,0(ra)
 
@@ -121,6 +82,9 @@ $arg0:
 	mov	v0,a0
 	jsr	ra,_exit
 
+	/* Die horribly.  */
+	halt
+
 	.end thread_start
 
 weak_alias(__clone, clone)