diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/setjmp-common.S')
-rw-r--r-- | sysdeps/powerpc/powerpc64/setjmp-common.S | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/setjmp-common.S b/sysdeps/powerpc/powerpc64/setjmp-common.S new file mode 100644 index 0000000000..541b5d4276 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/setjmp-common.S @@ -0,0 +1,171 @@ +/* setjmp for PowerPC64. + Copyright (C) 1995-2003, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#include <sysdep.h> +#define _ASM +#define _SETJMP_H +#ifdef __NO_VMX__ +#include <novmxsetjmp.h> +#else +#include <bits/setjmp.h> +#endif +#include <bp-sym.h> +#include <bp-asm.h> + +#ifndef __NO_VMX__ + .section ".toc","aw" +.LC__dl_hwcap: +#ifdef SHARED + .tc _rtld_global[TC],_rtld_global +#else + .tc _dl_hwcap[TC],_dl_hwcap +#endif + .section ".text" +#endif + +ENTRY (BP_SYM (__sigsetjmp)) + CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE) + std r1,(JB_GPR1*8)(3) + mflr r0 + std r2,(JB_GPR2*8)(3) + std r14,((JB_GPRS+0)*8)(3) + stfd fp14,((JB_FPRS+0)*8)(3) + std r0,(JB_LR*8)(3) + std r15,((JB_GPRS+1)*8)(3) + stfd fp15,((JB_FPRS+1)*8)(3) + mfcr r0 + std r16,((JB_GPRS+2)*8)(3) + stfd fp16,((JB_FPRS+2)*8)(3) + std r0,(JB_CR*8)(3) + std r17,((JB_GPRS+3)*8)(3) + stfd fp17,((JB_FPRS+3)*8)(3) + std r18,((JB_GPRS+4)*8)(3) + stfd fp18,((JB_FPRS+4)*8)(3) + std r19,((JB_GPRS+5)*8)(3) + stfd fp19,((JB_FPRS+5)*8)(3) + std r20,((JB_GPRS+6)*8)(3) + stfd fp20,((JB_FPRS+6)*8)(3) + std r21,((JB_GPRS+7)*8)(3) + stfd fp21,((JB_FPRS+7)*8)(3) + std r22,((JB_GPRS+8)*8)(3) + stfd fp22,((JB_FPRS+8)*8)(3) + std r23,((JB_GPRS+9)*8)(3) + stfd fp23,((JB_FPRS+9)*8)(3) + std r24,((JB_GPRS+10)*8)(3) + stfd fp24,((JB_FPRS+10)*8)(3) + std r25,((JB_GPRS+11)*8)(3) + stfd fp25,((JB_FPRS+11)*8)(3) + std r26,((JB_GPRS+12)*8)(3) + stfd fp26,((JB_FPRS+12)*8)(3) + std r27,((JB_GPRS+13)*8)(3) + stfd fp27,((JB_FPRS+13)*8)(3) + std r28,((JB_GPRS+14)*8)(3) + stfd fp28,((JB_FPRS+14)*8)(3) + std r29,((JB_GPRS+15)*8)(3) + stfd fp29,((JB_FPRS+15)*8)(3) + std r30,((JB_GPRS+16)*8)(3) + stfd fp30,((JB_FPRS+16)*8)(3) + std r31,((JB_GPRS+17)*8)(3) + stfd fp31,((JB_FPRS+17)*8)(3) +#ifndef __NO_VMX__ + ld r5,.LC__dl_hwcap@toc(r2) +#ifdef SHARED + /* Load _rtld-global._dl_hwcap. */ + ld r5,RTLD_GLOBAL_DL_HWCAP_OFFSET(r5) +#else + ld r5,0(r5) /* Load extern _dl_hwcap. */ +#endif + andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16) + beq no_vmx + la r5,((JB_VRS)*8)(3) + andi. r6,r5,0xf + mfspr r0,VRSAVE + stw r0,((JB_VRSAVE)*8)(3) + addi r6,r5,16 + beq+ aligned_save_vmx + lvsr v0,0,r5 + vspltisb v1,-1 /* set v1 to all 1's */ + vspltisb v2,0 /* set v2 to all 0's */ + vperm v3,v2,v1,v0 /* v3 contains shift mask with num all 1 bytes + on left = misalignment */ + + + /* Special case for v20 we need to preserve what is in save area + below v20 before obliterating it */ + lvx v5,0,r5 + vperm v20,v20,v20,v0 + vsel v5,v5,v20,v3 + vsel v20,v20,v2,v3 + stvx v5,0,r5 + +#define save_2vmx_partial(savevr,prev_savevr,hivr,shiftvr,maskvr,savegpr,addgpr) \ + addi addgpr,addgpr,32; \ + vperm savevr,savevr,savevr,shiftvr; \ + vsel hivr,prev_savevr,savevr,maskvr; \ + stvx hivr,0,savegpr; + + save_2vmx_partial(v21,v20,v5,v0,v3,r6,r5) + save_2vmx_partial(v22,v21,v5,v0,v3,r5,r6) + save_2vmx_partial(v23,v22,v5,v0,v3,r6,r5) + save_2vmx_partial(v24,v23,v5,v0,v3,r5,r6) + save_2vmx_partial(v25,v24,v5,v0,v3,r6,r5) + save_2vmx_partial(v26,v25,v5,v0,v3,r5,r6) + save_2vmx_partial(v27,v26,v5,v0,v3,r6,r5) + save_2vmx_partial(v28,v27,v5,v0,v3,r5,r6) + save_2vmx_partial(v29,v28,v5,v0,v3,r6,r5) + save_2vmx_partial(v30,v29,v5,v0,v3,r5,r6) + + /* Special case for r31 we need to preserve what is in save area + above v31 before obliterating it */ + addi r5,r5,32 + vperm v31,v31,v31,v0 + lvx v4,0,r5 + vsel v5,v30,v31,v3 + stvx v5,0,r6 + vsel v4,v31,v4,v3 + stvx v4,0,r5 + b no_vmx + +aligned_save_vmx: + stvx 20,0,r5 + addi r5,r5,32 + stvx 21,0,r6 + addi r6,r6,32 + stvx 22,0,r5 + addi r5,r5,32 + stvx 23,0,r6 + addi r6,r6,32 + stvx 24,0,r5 + addi r5,r5,32 + stvx 25,0,r6 + addi r6,r6,32 + stvx 26,0,r5 + addi r5,r5,32 + stvx 27,0,r6 + addi r6,r6,32 + stvx 28,0,r5 + addi r5,r5,32 + stvx 29,0,r6 + addi r6,r6,32 + stvx 30,0,r5 + stvx 31,0,r6 +no_vmx: +#endif + b JUMPTARGET (BP_SYM (__sigjmp_save)) +END (BP_SYM (__sigsetjmp)) |