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authorUlrich Drepper <drepper@redhat.com>1997-06-29 22:05:27 +0000
committerUlrich Drepper <drepper@redhat.com>1997-06-29 22:05:27 +0000
commit5ae3e846b9e5dc0c32b581dff29aaf8587f89bfa (patch)
treed7042b5844f386c3843169e7bca1de968acfce5e /sysdeps/unix/sysv/linux/sparc64/clone.S
parentbca973bcd954bb43e0d55b6fe3dd0648df52466a (diff)
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1997-06-29 23:43  Ulrich Drepper  <drepper@cygnus.com>

	* config.make.in: Define need-nopic-initfini.
	* configure.in: Write out nopic_initfini.
	* csu/Makefile: Generate no-PIC crt code if need-nopic-initfini
	is defined.

	* sysdeps/i386/fpu/fraiseexcpt.c: Correct FE_INEXACT case.

	* sysdeps/sparc/rem.S: Get trap definition properly.
	* sysdeps/sparc/sdiv.S: Likewise.
	* sysdeps/sparc/udiv.S: Likewise.
	* sysdeps/sparc/urem.S: Likewise.
	* sysdeps/sparc/setjmp.S: Include <sys/trap.h>.
	* sysdeps/sparc/sys/trap.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sys/trap.h: New file.

1997-06-25 10:26  Thorsten Kukuk  <kukuk@uni-paderborn.de>

	* sysdeps/generic/rpc/auth.h: Add xdr_opaque_auth declaration.

1997-06-29 10:34  Fila Kolodny  <fila@ibi.com>

	* sysdeps/mach/hurd/select.c (__select): Change MACH_MSG_SIZE_INTEGER_T
	to MACH_MSG_TYPE_INTEGER_T.

1997-06-29  01:04  Richard Henderson  <richard@gnu.ai.mit.edu>

	Initial sparc64-linux support:
	* configure.in: Recognize sparc64 as being different from sparc.
	* io/ftwtest-sh: Only invoke ld.so if it exists.
	* math/Makefile (LDLIBS-*): Change from libm to math/libm to get
	static tests to link.  Honour $(omit-long-double-fcts) == yes.
	* math/libm-test.c (test_single_exception): The argument to
	fetestexcept is `int' not `fexcept_t'.
	* shlib-versions: Recognize sparc64.
	* signal/signal.h: Add typedef for stack_t.

	* stdio-common/_itoa.c: Defaulting UMUL_TIME==UDIV_TIME is broken.
	Attempt to fix up most of this by cleaning up assumptions below,
	but give up and change the defaults.

	* setjmp/longjmp.c: Moved to ...
	* sysdeps/generic/longjmp.c: ... here.
	* setjmp/sigjmp.c: Moved to ...
	* sysdeps/generic/sigjmp.c: ... here.

	* sysdeps/sparc/bsd-_setjmp.S [PIC]: There wasn't even valid asm here.
	Ought to fix up gas to catch these silly things properly.
	* sysdeps/sparc/bsd-setjmp.S: Likewise.

	* sysdeps/unix/sysv/linux/sparc/errno.c: Remove.
	* sysdeps/unix/sysv/linux/sparc/kernel_sigaction.h: Remove.
	* sysdeps/unix/sysv/linux/sparc/kernel_stat.h: Tell xstat about
	the unused fields.

	* sysdeps/sparc/sparc64/add_n.s: Moved to ...
	* sysdeps/sparc64/add_n.S: ... here.  Fix up %g4 and stack usage.
	* sysdeps/sparc/sparc64/addmul_1.s: Likewise.
	* sysdeps/sparc/sparc64/gmp-mparam.h: Likewise.
	* sysdeps/sparc/sparc64/lshift.s: Likewise.
	* sysdeps/sparc/sparc64/mul_1.s: Likewise.
	* sysdeps/sparc/sparc64/rshift.s: Likewise.
	* sysdeps/sparc/sparc64/sub_n.s: Likewise.
	* sysdeps/sparc/sparc64/submul_1.s: Likewise.

	* sysdeps/sparc64/Implies: New file.
	* sysdeps/sparc64/Makefile: Likewise.
	* sysdeps/sparc64/bits/endian.h: Likewise.
	* sysdeps/sparc64/bsd-_setjmp.S: Likewise.
	* sysdeps/sparc64/bsd-setjmp.S: Likewise.
	* sysdeps/sparc64/dl-machine.h: Likewise.
	* sysdeps/sparc64/elf/Makefile: Likewise.
	* sysdeps/sparc64/elf/crtbegin.S: Likewise.
	* sysdeps/sparc64/elf/crtbeginS.S: Likewise.
	* sysdeps/sparc64/elf/crtend.S: Likewise.
	* sysdeps/sparc64/elf/crtendS.S: Likewise.
	* sysdeps/sparc64/elf/start.S: Likewise.
	* sysdeps/sparc64/fpu_control.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/__longjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/bits/setjmp.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/bits/types.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/brk.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/fork.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/getcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/init-first.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/kernel_stat.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/longjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/pipe.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/profil-counter.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/setcontext.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/setjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sigjmp.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sysdep.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc64/ucontext.h: Likewise.

1997-06-28 16:28  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* configure.in: Add -nostartfiles -nostdlib when check for
	--version-script.

1997-06-28 12:03  H.J. Lu  <hjl@gnu.ai.mit.edu>

	* sysdeps/powerpc/bits/endian.h: New file.

1997-06-28 20:52  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/syscalls.list: Add getresgid and
	setresgid.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc64/clone.S')
-rw-r--r--sysdeps/unix/sysv/linux/sparc64/clone.S89
1 files changed, 89 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc64/clone.S
new file mode 100644
index 0000000000..fe38bf4ab7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc64/clone.S
@@ -0,0 +1,89 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@tamu.edu).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* clone() is even more special than fork() as it mucks with stacks
+   and invokes a function in the right context after its all over.  */
+
+#include <asm/errno.h>
+#include <asm/unistd.h>
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+
+	.text
+	.align	4
+	.globl	__libc_clone
+	.type	__libc_clone,@function
+	.weak	clone
+	__clone = __libc_clone
+	clone   = __libc_clone
+
+__libc_clone:
+	save	%sp,-160,%sp
+
+	/* sanity check arguments */
+	brz,pn	%i0, 99f
+	 mov	%i0, %l0		/* save fn */
+	brz,pn	%i1, 99f
+	 mov	%i3, %l3		/* save arg */
+
+	/* Do the system call */
+	mov	%i1, %o1
+	mov	%i2, %o0
+	set	__NR_clone, %g1
+	ta	0x11
+	bcs,pn	%xcc, 99f
+	 nop
+	brnz	%o0, __thread_start
+	 mov	%o0, %i0
+	ret
+	 restore
+99:
+#ifdef PIC
+	rd	%pc, %g1
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_-(99b-.)), %l7
+	or	%l7, %lo(_GLOBAL_OFFSET_TABLE_-(99b-.)), %l7
+	add	%l7, %g1, %l7
+	set	EINVAL, %i0
+	sethi	%hi(errno), %g2
+	or	%g2, %lo(errno), %g2
+	st	%i0, [%l7+%g2]
+#else
+	sethi	%hi(errno), %g2
+	add	%g2, %g4, %g2
+	set	EINVAL, %i0
+	st	%i0, [%g2+%lo(errno)]
+#endif
+#ifdef _LIBC_REENTRANT
+	call	__errno_location
+	 nop
+	st	%i0, [%o0]
+#endif
+	mov	-1,%i0
+	ret
+	 restore
+	.size __libc_clone,.-__libc_clone
+
+	.type __thread_start,@function
+__thread_start:
+	mov	%g0, %fp	/* terminate backtrace */
+	sub	%sp, 6*8, %sp	/* provide arg storage */
+	call	%l0
+	 mov	%l3,%o0
+	call	_exit,0
+	 nop
+	.size __thread_start,.-__thread_start