| /* longjmp for PowerPC64. |
| Copyright (C) 1995-2018 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sysdep.h> |
| #include <stap-probe.h> |
| #define _ASM |
| #define _SETJMP_H |
| #ifdef __NO_VMX__ |
| # include <novmxsetjmp.h> |
| #else |
| # include <jmpbuf-offsets.h> |
| #endif |
| |
| #ifndef __NO_VMX__ |
| .section ".toc","aw" |
| .LC__dl_hwcap: |
| # ifdef SHARED |
| # if IS_IN (rtld) |
| /* Inside ld.so we use the local alias to avoid runtime GOT |
| relocations. */ |
| .tc _rtld_local_ro[TC],_rtld_local_ro |
| # else |
| .tc _rtld_global_ro[TC],_rtld_global_ro |
| # endif |
| # else |
| .tc _dl_hwcap[TC],_dl_hwcap |
| # endif |
| .section ".text" |
| #endif |
| |
| .machine "altivec" |
| ENTRY (__longjmp) |
| CALL_MCOUNT 2 |
| #ifndef __NO_VMX__ |
| ld r5,.LC__dl_hwcap@toc(r2) |
| # ifdef SHARED |
| /* Load _rtld-global._dl_hwcap. */ |
| ld r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET(r5) |
| # else |
| ld r5,0(r5) /* Load extern _dl_hwcap. */ |
| # endif |
| andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16) |
| beq L(no_vmx) |
| la r5,((JB_VRS)*8)(3) |
| andi. r6,r5,0xf |
| lwz r0,((JB_VRSAVE)*8)(3) /* 32-bit VRSAVE. */ |
| mtspr VRSAVE,r0 |
| beq+ L(aligned_restore_vmx) |
| addi r6,r5,16 |
| lvsl v0,0,r5 |
| lvx v1,0,r5 |
| addi r5,r5,32 |
| lvx v21,0,r6 |
| vperm v20,v1,v21,v0 |
| # define load_misaligned_vmx_lo_loaded(loadvr,lovr,shiftvr,loadgpr,addgpr) \ |
| addi addgpr,addgpr,32; \ |
| lvx lovr,0,loadgpr; \ |
| vperm loadvr,loadvr,lovr,shiftvr; |
| load_misaligned_vmx_lo_loaded(v21,v22,v0,r5,r6) |
| load_misaligned_vmx_lo_loaded(v22,v23,v0,r6,r5) |
| load_misaligned_vmx_lo_loaded(v23,v24,v0,r5,r6) |
| load_misaligned_vmx_lo_loaded(v24,v25,v0,r6,r5) |
| load_misaligned_vmx_lo_loaded(v25,v26,v0,r5,r6) |
| load_misaligned_vmx_lo_loaded(v26,v27,v0,r6,r5) |
| load_misaligned_vmx_lo_loaded(v27,v28,v0,r5,r6) |
| load_misaligned_vmx_lo_loaded(v28,v29,v0,r6,r5) |
| load_misaligned_vmx_lo_loaded(v29,v30,v0,r5,r6) |
| load_misaligned_vmx_lo_loaded(v30,v31,v0,r6,r5) |
| lvx v1,0,r5 |
| vperm v31,v31,v1,v0 |
| b L(no_vmx) |
| L(aligned_restore_vmx): |
| addi r6,r5,16 |
| lvx v20,0,r5 |
| addi r5,r5,32 |
| lvx v21,0,r6 |
| addi r6,r6,32 |
| lvx v22,0,r5 |
| addi r5,r5,32 |
| lvx v23,0,r6 |
| addi r6,r6,32 |
| lvx v24,0,r5 |
| addi r5,r5,32 |
| lvx v25,0,r6 |
| addi r6,r6,32 |
| lvx v26,0,r5 |
| addi r5,r5,32 |
| lvx v27,0,r6 |
| addi r6,r6,32 |
| lvx v28,0,r5 |
| addi r5,r5,32 |
| lvx v29,0,r6 |
| addi r6,r6,32 |
| lvx v30,0,r5 |
| lvx v31,0,r6 |
| L(no_vmx): |
| #endif |
| #if defined PTR_DEMANGLE || defined CHECK_SP |
| ld r22,(JB_GPR1*8)(r3) |
| #else |
| ld r1,(JB_GPR1*8)(r3) |
| #endif |
| #ifdef PTR_DEMANGLE |
| # ifdef CHECK_SP |
| PTR_DEMANGLE3 (r22, r22, r25) |
| # else |
| PTR_DEMANGLE3 (r1, r22, r25) |
| # endif |
| #endif |
| #ifdef CHECK_SP |
| CHECK_SP (r22) |
| mr r1,r22 |
| #endif |
| ld r2,(JB_GPR2*8)(r3) |
| ld r0,(JB_LR*8)(r3) |
| ld r14,((JB_GPRS+0)*8)(r3) |
| lfd fp14,((JB_FPRS+0)*8)(r3) |
| #if defined SHARED && !IS_IN (rtld) |
| std r2,FRAME_TOC_SAVE(r1) /* Restore the callers TOC save area. */ |
| #endif |
| ld r15,((JB_GPRS+1)*8)(r3) |
| lfd fp15,((JB_FPRS+1)*8)(r3) |
| ld r16,((JB_GPRS+2)*8)(r3) |
| lfd fp16,((JB_FPRS+2)*8)(r3) |
| ld r17,((JB_GPRS+3)*8)(r3) |
| lfd fp17,((JB_FPRS+3)*8)(r3) |
| ld r18,((JB_GPRS+4)*8)(r3) |
| lfd fp18,((JB_FPRS+4)*8)(r3) |
| ld r19,((JB_GPRS+5)*8)(r3) |
| lfd fp19,((JB_FPRS+5)*8)(r3) |
| ld r20,((JB_GPRS+6)*8)(r3) |
| lfd fp20,((JB_FPRS+6)*8)(r3) |
| #ifdef PTR_DEMANGLE |
| PTR_DEMANGLE2 (r0, r25) |
| #endif |
| /* longjmp/longjmp_target probe expects longjmp first argument (8@3), |
| second argument (-4@4), and target address (8@0), respectively. */ |
| LIBC_PROBE (longjmp, 3, 8@3, -4@4, 8@0) |
| mtlr r0 |
| /* std r2,FRAME_TOC_SAVE(r1) Restore the TOC save area. */ |
| ld r21,((JB_GPRS+7)*8)(r3) |
| lfd fp21,((JB_FPRS+7)*8)(r3) |
| ld r22,((JB_GPRS+8)*8)(r3) |
| lfd fp22,((JB_FPRS+8)*8)(r3) |
| lwz r5,((JB_CR*8)+4)(r3) /* 32-bit CR. */ |
| ld r23,((JB_GPRS+9)*8)(r3) |
| lfd fp23,((JB_FPRS+9)*8)(r3) |
| ld r24,((JB_GPRS+10)*8)(r3) |
| lfd fp24,((JB_FPRS+10)*8)(r3) |
| ld r25,((JB_GPRS+11)*8)(r3) |
| lfd fp25,((JB_FPRS+11)*8)(r3) |
| mtcrf 0xFF,r5 |
| ld r26,((JB_GPRS+12)*8)(r3) |
| lfd fp26,((JB_FPRS+12)*8)(r3) |
| ld r27,((JB_GPRS+13)*8)(r3) |
| lfd fp27,((JB_FPRS+13)*8)(r3) |
| ld r28,((JB_GPRS+14)*8)(r3) |
| lfd fp28,((JB_FPRS+14)*8)(r3) |
| ld r29,((JB_GPRS+15)*8)(r3) |
| lfd fp29,((JB_FPRS+15)*8)(r3) |
| ld r30,((JB_GPRS+16)*8)(r3) |
| lfd fp30,((JB_FPRS+16)*8)(r3) |
| ld r31,((JB_GPRS+17)*8)(r3) |
| lfd fp31,((JB_FPRS+17)*8)(r3) |
| LIBC_PROBE (longjmp_target, 3, 8@3, -4@4, 8@0) |
| mr r3,r4 |
| blr |
| END (__longjmp) |
