projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5c76ff27 | 1 | /* setjmp for PowerPC. |
| 6d7e8eda | 2 | Copyright (C) 1995-2023 Free Software Foundation, Inc. |
| 5c76ff27 UD |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 59ba27a6 | 16 | License along with the GNU C Library; if not, see |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 5c76ff27 UD |
18 | |
| 19 | #include <sysdep.h> | |
| 88f4b692 | 20 | #include <pointer_guard.h> |
| eb5ad6b9 | 21 | #include <stap-probe.h> |
| 5c76ff27 | 22 | #define _ASM |
| 5c76ff27 UD |
23 | #ifdef __NO_VMX__ |
| 24 | # include <novmxsetjmp.h> | |
| 25 | #else | |
| a7140723 | 26 | # include <jmpbuf-offsets.h> |
| 5c76ff27 | 27 | #endif |
| 5c76ff27 | 28 | |
| f2bfeadf | 29 | .machine "altivec" |
| eb5ad6b9 | 30 | ENTRY (__sigsetjmp_symbol) |
| 5c76ff27 | 31 | |
| 4e54d7e4 UD |
32 | #ifdef PTR_MANGLE |
| 33 | mr r5,r1 | |
| 5ad77144 | 34 | PTR_MANGLE(r5, r6) |
| 4e54d7e4 UD |
35 | stw r5,(JB_GPR1*4)(3) |
| 36 | #else | |
| 5c76ff27 | 37 | stw r1,(JB_GPR1*4)(3) |
| 4e54d7e4 | 38 | #endif |
| 5c76ff27 | 39 | mflr r0 |
| eb5ad6b9 AZ |
40 | /* setjmp probe expects longjmp first argument (4@3), second argument |
| 41 | (-4@4), and target address (4@0), respectively. */ | |
| 42 | LIBC_PROBE (setjmp, 3, 4@3, -4@4, 4@0) | |
| 5c76ff27 UD |
43 | stw r14,((JB_GPRS+0)*4)(3) |
| 44 | stfd fp14,((JB_FPRS+0*2)*4)(3) | |
| 4e54d7e4 | 45 | #ifdef PTR_MANGLE |
| 5ad77144 | 46 | PTR_MANGLE2 (r0, r6) |
| 4e54d7e4 | 47 | #endif |
| 5c76ff27 UD |
48 | stw r0,(JB_LR*4)(3) |
| 49 | stw r15,((JB_GPRS+1)*4)(3) | |
| 50 | stfd fp15,((JB_FPRS+1*2)*4)(3) | |
| 51 | mfcr r0 | |
| 52 | stw r16,((JB_GPRS+2)*4)(3) | |
| 53 | stfd fp16,((JB_FPRS+2*2)*4)(3) | |
| 54 | stw r0,(JB_CR*4)(3) | |
| 55 | stw r17,((JB_GPRS+3)*4)(3) | |
| 56 | stfd fp17,((JB_FPRS+3*2)*4)(3) | |
| 57 | stw r18,((JB_GPRS+4)*4)(3) | |
| 58 | stfd fp18,((JB_FPRS+4*2)*4)(3) | |
| 59 | stw r19,((JB_GPRS+5)*4)(3) | |
| 60 | stfd fp19,((JB_FPRS+5*2)*4)(3) | |
| 61 | stw r20,((JB_GPRS+6)*4)(3) | |
| 62 | stfd fp20,((JB_FPRS+6*2)*4)(3) | |
| 63 | stw r21,((JB_GPRS+7)*4)(3) | |
| 64 | stfd fp21,((JB_FPRS+7*2)*4)(3) | |
| 65 | stw r22,((JB_GPRS+8)*4)(3) | |
| 66 | stfd fp22,((JB_FPRS+8*2)*4)(3) | |
| 67 | stw r23,((JB_GPRS+9)*4)(3) | |
| 68 | stfd fp23,((JB_FPRS+9*2)*4)(3) | |
| 69 | stw r24,((JB_GPRS+10)*4)(3) | |
| 70 | stfd fp24,((JB_FPRS+10*2)*4)(3) | |
| 71 | stw r25,((JB_GPRS+11)*4)(3) | |
| 72 | stfd fp25,((JB_FPRS+11*2)*4)(3) | |
| 73 | stw r26,((JB_GPRS+12)*4)(3) | |
| 74 | stfd fp26,((JB_FPRS+12*2)*4)(3) | |
| 75 | stw r27,((JB_GPRS+13)*4)(3) | |
| 76 | stfd fp27,((JB_FPRS+13*2)*4)(3) | |
| 77 | stw r28,((JB_GPRS+14)*4)(3) | |
| 78 | stfd fp28,((JB_FPRS+14*2)*4)(3) | |
| 79 | stw r29,((JB_GPRS+15)*4)(3) | |
| 80 | stfd fp29,((JB_FPRS+15*2)*4)(3) | |
| 81 | stw r30,((JB_GPRS+16)*4)(3) | |
| 82 | stfd fp30,((JB_FPRS+16*2)*4)(3) | |
| 83 | stw r31,((JB_GPRS+17)*4)(3) | |
| 84 | stfd fp31,((JB_FPRS+17*2)*4)(3) | |
| 85 | #ifndef __NO_VMX__ | |
| 7427c5de | 86 | # ifdef PIC |
| 5c76ff27 | 87 | mflr r6 |
| a7e91561 | 88 | cfi_register(lr,r6) |
| 91d2a845 WS |
89 | SETUP_GOT_ACCESS(r5,got_label) |
| 90 | addis r5,r5,_GLOBAL_OFFSET_TABLE_-got_label@ha | |
| 91 | addi r5,r5,_GLOBAL_OFFSET_TABLE_-got_label@l | |
| a7e91561 UD |
92 | mtlr r6 |
| 93 | cfi_same_value (lr) | |
| 7427c5de | 94 | # ifdef SHARED |
| a3848485 | 95 | # if IS_IN (rtld) |
| 37fb1dc0 AS |
96 | /* Inside ld.so we use the local alias to avoid runtime GOT |
| 97 | relocations. */ | |
| 98 | lwz r5,_rtld_local_ro@got(r5) | |
| 99 | # else | |
| ef690add | 100 | lwz r5,_rtld_global_ro@got(r5) |
| 37fb1dc0 | 101 | # endif |
| be1e5d31 | 102 | lwz r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+LOWORD(r5) |
| 7427c5de UD |
103 | # else |
| 104 | lwz r5,_dl_hwcap@got(r5) | |
| be1e5d31 | 105 | lwz r5,LOWORD(r5) |
| 7427c5de UD |
106 | # endif |
| 107 | # else | |
| be1e5d31 AB |
108 | lis r6,(_dl_hwcap+LOWORD)@ha |
| 109 | lwz r5,(_dl_hwcap+LOWORD)@l(r6) | |
| 5ad77144 | 110 | # endif |
| 5c76ff27 | 111 | andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16) |
| 37272306 | 112 | beq L(no_vmx) |
| 5c76ff27 UD |
113 | la r5,((JB_VRS)*4)(3) |
| 114 | andi. r6,r5,0xf | |
| 115 | mfspr r0,VRSAVE | |
| 116 | stw r0,((JB_VRSAVE)*4)(3) | |
| 117 | addi r6,r5,16 | |
| 37272306 | 118 | beq+ L(aligned_save_vmx) |
| 5c76ff27 | 119 | |
| be1e5d31 AB |
120 | lvsr v0,0,r5 |
| 121 | lvsl v1,0,r5 | |
| 122 | addi r6,r5,-16 | |
| 5c76ff27 | 123 | |
| be1e5d31 AB |
124 | # define save_misaligned_vmx(savevr,prevvr,shiftvr,tmpvr,savegpr,addgpr) \ |
| 125 | addi addgpr,addgpr,32; \ | |
| 126 | vperm tmpvr,prevvr,savevr,shiftvr; \ | |
| 127 | stvx tmpvr,0,savegpr | |
| 5c76ff27 | 128 | |
| be1e5d31 AB |
129 | /* |
| 130 | * We have to be careful not to corrupt the data below v20 and | |
| 131 | * above v31. To keep things simple we just rotate both ends in | |
| 132 | * the opposite direction to our main permute so we can use | |
| 133 | * the common macro. | |
| 134 | */ | |
| 5c76ff27 | 135 | |
| be1e5d31 AB |
136 | /* load and rotate data below v20 */ |
| 137 | lvx v2,0,r5 | |
| 138 | vperm v2,v2,v2,v1 | |
| 139 | save_misaligned_vmx(v20,v2,v0,v3,r5,r6) | |
| 140 | save_misaligned_vmx(v21,v20,v0,v3,r6,r5) | |
| 141 | save_misaligned_vmx(v22,v21,v0,v3,r5,r6) | |
| 142 | save_misaligned_vmx(v23,v22,v0,v3,r6,r5) | |
| 143 | save_misaligned_vmx(v24,v23,v0,v3,r5,r6) | |
| 144 | save_misaligned_vmx(v25,v24,v0,v3,r6,r5) | |
| 145 | save_misaligned_vmx(v26,v25,v0,v3,r5,r6) | |
| 146 | save_misaligned_vmx(v27,v26,v0,v3,r6,r5) | |
| 147 | save_misaligned_vmx(v28,v27,v0,v3,r5,r6) | |
| 148 | save_misaligned_vmx(v29,v28,v0,v3,r6,r5) | |
| 149 | save_misaligned_vmx(v30,v29,v0,v3,r5,r6) | |
| 150 | save_misaligned_vmx(v31,v30,v0,v3,r6,r5) | |
| 151 | /* load and rotate data above v31 */ | |
| 152 | lvx v2,0,r6 | |
| 153 | vperm v2,v2,v2,v1 | |
| 154 | save_misaligned_vmx(v2,v31,v0,v3,r5,r6) | |
| 5c76ff27 | 155 | |
| 37272306 | 156 | b L(no_vmx) |
| 5c76ff27 | 157 | |
| 37272306 | 158 | L(aligned_save_vmx): |
| 5c76ff27 UD |
159 | stvx 20,0,r5 |
| 160 | addi r5,r5,32 | |
| 161 | stvx 21,0,r6 | |
| 162 | addi r6,r6,32 | |
| 163 | stvx 22,0,r5 | |
| 164 | addi r5,r5,32 | |
| 165 | stvx 23,0,r6 | |
| 166 | addi r6,r6,32 | |
| 167 | stvx 24,0,r5 | |
| 168 | addi r5,r5,32 | |
| 169 | stvx 25,0,r6 | |
| 170 | addi r6,r6,32 | |
| 171 | stvx 26,0,r5 | |
| 172 | addi r5,r5,32 | |
| 173 | stvx 27,0,r6 | |
| 174 | addi r6,r6,32 | |
| 175 | stvx 28,0,r5 | |
| 176 | addi r5,r5,32 | |
| 177 | stvx 29,0,r6 | |
| 178 | addi r6,r6,32 | |
| 179 | stvx 30,0,r5 | |
| 180 | stvx 31,0,r6 | |
| 37272306 | 181 | L(no_vmx): |
| 5c76ff27 | 182 | #endif |
| eb5ad6b9 AZ |
183 | b __sigjmp_save_symbol@local |
| 184 | END (__sigsetjmp_symbol) |