2 Copyright (C) 1995-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
20 #include <pointer_guard.h>
21 #include <stap-probe.h>
24 # include <novmxsetjmp.h>
26 # include <jmpbuf-offsets.h>
30 ENTRY (__sigsetjmp_symbol)
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)
43 stw r14,((JB_GPRS+0)*4)(3)
44 stfd fp14,((JB_FPRS+0*2)*4)(3)
49 stw r15,((JB_GPRS+1)*4)(3)
50 stfd fp15,((JB_FPRS+1*2)*4)(3)
52 stw r16,((JB_GPRS+2)*4)(3)
53 stfd fp16,((JB_FPRS+2*2)*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)
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
96 /* Inside ld.so we use the local alias to avoid runtime GOT
98 lwz r5,_rtld_local_ro@got(r5)
100 lwz r5,_rtld_global_ro@got(r5)
102 lwz r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+LOWORD(r5)
104 lwz r5,_dl_hwcap@got(r5)
108 lis r6,(_dl_hwcap+LOWORD)@ha
109 lwz r5,(_dl_hwcap+LOWORD)@l(r6)
111 andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
113 la r5,((JB_VRS)*4)(3)
116 stw r0,((JB_VRSAVE)*4)(3)
118 beq+ L(aligned_save_vmx)
124 # define save_misaligned_vmx(savevr,prevvr,shiftvr,tmpvr,savegpr,addgpr) \
125 addi addgpr,addgpr,32; \
126 vperm tmpvr,prevvr,savevr,shiftvr; \
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
136 /* load and rotate data below v20 */
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 */
154 save_misaligned_vmx(v2,v31,v0,v3,r5,r6)
183 b __sigjmp_save_symbol@local
184 END (__sigsetjmp_symbol)