1 files changed, 189 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/ia64/setjmp.S b/libc/sysdeps/linux/ia64/setjmp.S
new file mode 100644
index 000000000..11dc0e62e
--- /dev/null
+++ b/libc/sysdeps/linux/ia64/setjmp.S
@@ -0,0 +1,189 @@
+/* Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005
+   Free Software Foundation, Inc.
+   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.
+
+   The layout of the jmp_buf is as follows.  This is subject to change
+   and user-code should never depend on the particular layout of
+   jmp_buf!
+
+
+  	offset:	description:
+	-------	------------
+  	0x000	stack pointer (r12)	; unchangeable (see _JMPBUF_UNWINDS)
+  	0x008	r1 (gp)
+	0x010	caller's unat
+	0x018	fpsr
+  	0x020	r4
+  	0x028	r5
+  	0x030	r6
+  	0x038	r7
+  	0x040	rp (b0)
+  	0x048	b1
+  	0x050	b2
+  	0x058	b3
+  	0x060	b4
+  	0x068	b5
+  	0x070	ar.pfs
+  	0x078	ar.lc
+  	0x080	pr
+  	0x088	ar.bsp			; unchangeable (see __longjmp.S)
+  	0x090	ar.unat
+	0x098	&__jmp_buf	; address of the jmpbuf (needed to locate NaT bits in unat)
+	0x0a0	 f2
+	0x0b0	 f3
+	0x0c0	 f4
+	0x0d0	 f5
+	0x0e0	f16
+  	0x0f0	f17
+  	0x100	f18
+  	0x110	f19
+  	0x120	f20
+  	0x130	f21
+  	0x130	f22
+  	0x140	f23
+  	0x150	f24
+  	0x160	f25
+  	0x170	f26
+  	0x180	f27
+  	0x190	f28
+  	0x1a0	f29
+  	0x1b0	f30
+  	0x1c0	f31 */
+
+#include "sysdep.h"
+#include <features.h>
+
+	/* The following two entry points are the traditional entry points: */
+
+LEAF(setjmp)
+	alloc r8=ar.pfs,2,0,0,0
+	mov in1=1
+	br.cond.sptk.many _GI___sigsetjmp
+END(setjmp)
+
+LEAF(_setjmp)
+	alloc r8=ar.pfs,2,0,0,0
+	mov in1=0
+	br.cond.sptk.many _GI___sigsetjmp
+END(_setjmp)
+libc_hidden_def (_setjmp)
+
+	/* __sigsetjmp(__jmp_buf buf, int savemask) */
+
+ENTRY(__sigsetjmp)
+	.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2)
+	alloc loc1=ar.pfs,2,5,2,0
+	.save ar.unat, loc2
+	mov loc2=ar.unat
+	;;
+	mov r17=ar.fpsr
+	mov r2=in0
+	add r3=8,in0
+	;;
+.mem.offset 8,0;	st8.spill.nta [r2]=sp,16	// r12 (sp)
+.mem.offset 0,0;	st8.spill.nta [r3]=gp,16	// r1 (gp)
+	;;
+	st8.nta [r2]=loc2,16		// save caller's unat
+	st8.nta [r3]=r17,16		// save fpsr
+	add r8=0xa0,in0
+	;;
+.mem.offset 8,0;	st8.spill.nta [r2]=r4,16	// r4
+.mem.offset 0,0;	st8.spill.nta [r3]=r5,16	// r5
+	add r9=0xb0,in0
+	;;
+	stf.spill.nta [r8]=f2,32
+	stf.spill.nta [r9]=f3,32
+	mov loc0=rp
+	.body
+	;;
+	stf.spill.nta [r8]=f4,32
+	stf.spill.nta [r9]=f5,32
+	mov r17=b1
+	;;
+	stf.spill.nta [r8]=f16,32
+	stf.spill.nta [r9]=f17,32
+	mov r18=b2
+	;;
+	stf.spill.nta [r8]=f18,32
+	stf.spill.nta [r9]=f19,32
+	mov r19=b3
+	;;
+	stf.spill.nta [r8]=f20,32
+	stf.spill.nta [r9]=f21,32
+	mov r20=b4
+	;;
+	stf.spill.nta [r8]=f22,32
+	stf.spill.nta [r9]=f23,32
+	mov r21=b5
+	;;
+	stf.spill.nta [r8]=f24,32
+	stf.spill.nta [r9]=f25,32
+	mov r22=ar.lc
+	;;
+	stf.spill.nta [r8]=f26,32
+	stf.spill.nta [r9]=f27,32
+	mov r24=pr
+	;;
+	stf.spill.nta [r8]=f28,32
+	stf.spill.nta [r9]=f29,32
+	;;
+	stf.spill.nta [r8]=f30
+	stf.spill.nta [r9]=f31
+
+.mem.offset 8,0;	st8.spill.nta [r2]=r6,16	// r6
+.mem.offset 0,0;	st8.spill.nta [r3]=r7,16	// r7
+	;;
+	mov r23=ar.bsp
+	mov r25=ar.unat
+	mov out0=in0
+
+	st8.nta [r2]=loc0,16		// b0
+	st8.nta [r3]=r17,16		// b1
+	mov out1=in1
+	;;
+	st8.nta [r2]=r18,16		// b2
+	st8.nta [r3]=r19,16		// b3
+	;;
+	st8.nta [r2]=r20,16		// b4
+	st8.nta [r3]=r21,16		// b5
+	;;
+	st8.nta [r2]=loc1,16		// ar.pfs
+	st8.nta [r3]=r22,16		// ar.lc
+	;;
+	st8.nta [r2]=r24,16		// pr
+	st8.nta [r3]=r23,16		// ar.bsp
+	;;
+	st8.nta [r2]=r25		// ar.unat
+	st8.nta [r3]=in0		// &__jmp_buf
+#if defined NOT_IN_libc && defined IS_IN_rtld
+	/* In ld.so we never save the signal mask.  */
+	;;
+#else
+	br.call.dpnt.few rp=__sigjmp_save
+#endif
+.ret0:					// force a new bundle ::q
+	mov.m ar.unat=loc2		// restore caller's unat
+	mov rp=loc0
+	mov ar.pfs=loc1
+	mov r8=0
+	ret
+END(__sigsetjmp)
+strong_alias(__sigsetjmp, _GI___sigsetjmp)
+
+weak_extern(_setjmp)
+weak_extern(setjmp)