diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/ia64/setjmp.S')
| -rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/ia64/setjmp.S | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/ia64/setjmp.S b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/setjmp.S new file mode 100644 index 0000000000..15767e3016 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/ia64/setjmp.S @@ -0,0 +1,198 @@ +/* Copyright (C) 1999-2017 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, see + <http://www.gnu.org/licenses/>. + + 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 ; disabled per the C standard; BZ 16379 + 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 HIDDEN_JUMPTARGET(__sigsetjmp) +END(setjmp) + +LEAF(_setjmp) + alloc r8=ar.pfs,2,0,0,0 + mov in1=0 + br.cond.sptk.many HIDDEN_JUMPTARGET(__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,32 // 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 +#ifdef PTR_MANGLE + mov loc3=loc0 + ;; + PTR_MANGLE (loc3, loc4) +#else + ;; +#endif + 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 + +#ifdef PTR_MANGLE + st8.nta [r2]=loc3,16 // b0 +#else + st8.nta [r2]=loc0,16 // b0 +#endif + 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 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) +libc_hidden_def (__sigsetjmp) +rtld_hidden_def (__sigsetjmp) + +weak_extern(_setjmp) +weak_extern(setjmp) |