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authorMike Frysinger <vapier@gentoo.org>2006-02-04 01:20:54 +0000
committerMike Frysinger <vapier@gentoo.org>2006-02-04 01:20:54 +0000
commitc429bf3057c87dd9545fc2d824b5930c52f7dfb8 (patch)
treef207534c6a7a16795f8e7a099c1b48180e9db94f /libc/sysdeps/linux/ia64/setjmp.S
parent798669dc65077f81b6facd2415463a1bda13c4d7 (diff)
import files from glibc for an ia64/static port
Diffstat (limited to 'libc/sysdeps/linux/ia64/setjmp.S')
-rw-r--r--libc/sysdeps/linux/ia64/setjmp.S189
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)