| blob | 04ed6da68b18256f4bcc1ed2050b6e9213e241cc |
1 /* longjmp for PowerPC.
2 Copyright (C) 1995-99, 2000, 2003-2006, 2009 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, write to the Free
17 Software Foundation, Inc., 1 Franklin Street, Fifth Floor, Boston MA
18 02110-1301 USA. */
20 #include <sysdep.h>
21 #define _ASM
22 #ifdef __NO_VMX__
23 # include <novmxsetjmp.h>
24 #else
25 # include <jmpbuf-offsets.h>
26 #endif
27 #include <bp-sym.h>
28 #include <bp-asm.h>
30 .machine "altivec"
31 ENTRY (BP_SYM (__longjmp))
32 CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
33 #ifndef __NO_VMX__
34 # ifdef PIC
35 mflr r6
36 cfi_register (lr,r6)
37 # ifdef HAVE_ASM_PPC_REL16
38 bcl 20,31,1f
39 1: mflr r5
40 addis r5,r5,_GLOBAL_OFFSET_TABLE_-1b@ha
41 addi r5,r5,_GLOBAL_OFFSET_TABLE_-1b@l
42 # else
43 bl _GLOBAL_OFFSET_TABLE_@local-4
44 mflr r5
45 # endif
46 # ifdef SHARED
47 lwz r5,_rtld_global_ro@got(r5)
48 mtlr r6
49 cfi_same_value (lr)
50 lwz r5,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+4(r5)
51 # else
52 lwz r5,_dl_hwcap@got(r5)
53 mtlr r6
54 cfi_same_value (lr)
55 lwz r5,4(r5)
56 # endif
57 # else
58 lis r5,(_dl_hwcap+4)@ha
59 lwz r5,(_dl_hwcap+4)@l(r5)
60 # endif
61 andis. r5,r5,(PPC_FEATURE_HAS_ALTIVEC >> 16)
62 beq L(no_vmx)
63 la r5,((JB_VRS)*4)(3)
64 andi. r6,r5,0xf
65 lwz r0,((JB_VRSAVE)*4)(3)
66 mtspr VRSAVE,r0
67 beq+ L(aligned_restore_vmx)
68 addi r6,r5,16
69 lvsl v0,0,r5
70 lvx v1,0,r5
71 addi r5,r5,32
72 lvx v21,0,r6
73 vperm v20,v1,v21,v0
74 # define load_misaligned_vmx_lo_loaded(loadvr,lovr,shiftvr,loadgpr,addgpr) \
75 addi addgpr,addgpr,32; \
76 lvx lovr,0,loadgpr; \
77 vperm loadvr,loadvr,lovr,shiftvr;
78 load_misaligned_vmx_lo_loaded(v21,v22,v0,r5,r6)
79 load_misaligned_vmx_lo_loaded(v22,v23,v0,r6,r5)
80 load_misaligned_vmx_lo_loaded(v23,v24,v0,r5,r6)
81 load_misaligned_vmx_lo_loaded(v24,v25,v0,r6,r5)
82 load_misaligned_vmx_lo_loaded(v25,v26,v0,r5,r6)
83 load_misaligned_vmx_lo_loaded(v26,v27,v0,r6,r5)
84 load_misaligned_vmx_lo_loaded(v27,v28,v0,r5,r6)
85 load_misaligned_vmx_lo_loaded(v28,v29,v0,r6,r5)
86 load_misaligned_vmx_lo_loaded(v29,v30,v0,r5,r6)
87 load_misaligned_vmx_lo_loaded(v30,v31,v0,r6,r5)
88 lvx v1,0,r5
89 vperm v31,v31,v1,v0
90 b L(no_vmx)
91 L(aligned_restore_vmx):
92 addi r6,r5,16
93 lvx v20,0,r5
94 addi r5,r5,32
95 lvx v21,0,r6
96 addi r6,r6,32
97 lvx v22,0,r5
98 addi r5,r5,32
99 lvx v23,0,r6
100 addi r6,r6,32
101 lvx v24,0,r5
102 addi r5,r5,32
103 lvx v25,0,r6
104 addi r6,r6,32
105 lvx v26,0,r5
106 addi r5,r5,32
107 lvx v27,0,r6
108 addi r6,r6,32
109 lvx v28,0,r5
110 addi r5,r5,32
111 lvx v29,0,r6
112 addi r6,r6,32
113 lvx v30,0,r5
114 lvx v31,0,r6
115 L(no_vmx):
116 #endif
117 #if defined PTR_DEMANGLE || defined CHECK_SP
118 lwz r24,(JB_GPR1*4)(r3)
119 # ifdef CHECK_SP
120 # ifdef PTR_DEMANGLE
121 PTR_DEMANGLE3 (r24, r24, r25)
122 # endif
123 CHECK_SP (r24)
124 mr r1,r24
125 # endif
126 #else
127 lwz r1,(JB_GPR1*4)(r3)
128 #endif
129 lwz r0,(JB_LR*4)(r3)
130 lwz r14,((JB_GPRS+0)*4)(r3)
131 lfd fp14,((JB_FPRS+0*2)*4)(r3)
132 lwz r15,((JB_GPRS+1)*4)(r3)
133 lfd fp15,((JB_FPRS+1*2)*4)(r3)
134 lwz r16,((JB_GPRS+2)*4)(r3)
135 lfd fp16,((JB_FPRS+2*2)*4)(r3)
136 lwz r17,((JB_GPRS+3)*4)(r3)
137 lfd fp17,((JB_FPRS+3*2)*4)(r3)
138 lwz r18,((JB_GPRS+4)*4)(r3)
139 lfd fp18,((JB_FPRS+4*2)*4)(r3)
140 lwz r19,((JB_GPRS+5)*4)(r3)
141 lfd fp19,((JB_FPRS+5*2)*4)(r3)
142 lwz r20,((JB_GPRS+6)*4)(r3)
143 lfd fp20,((JB_FPRS+6*2)*4)(r3)
144 #ifdef PTR_DEMANGLE
145 # ifndef CHECK_SP
146 PTR_DEMANGLE3 (r1, r24, r25)
147 # endif
148 PTR_DEMANGLE2 (r0, r25)
149 #endif
150 mtlr r0
151 lwz r21,((JB_GPRS+7)*4)(r3)
152 lfd fp21,((JB_FPRS+7*2)*4)(r3)
153 lwz r22,((JB_GPRS+8)*4)(r3)
154 lfd fp22,((JB_FPRS+8*2)*4)(r3)
155 lwz r0,(JB_CR*4)(r3)
156 lwz r23,((JB_GPRS+9)*4)(r3)
157 lfd fp23,((JB_FPRS+9*2)*4)(r3)
158 lwz r24,((JB_GPRS+10)*4)(r3)
159 lfd fp24,((JB_FPRS+10*2)*4)(r3)
160 lwz r25,((JB_GPRS+11)*4)(r3)
161 lfd fp25,((JB_FPRS+11*2)*4)(r3)
162 mtcrf 0xFF,r0
163 lwz r26,((JB_GPRS+12)*4)(r3)
164 lfd fp26,((JB_FPRS+12*2)*4)(r3)
165 lwz r27,((JB_GPRS+13)*4)(r3)
166 lfd fp27,((JB_FPRS+13*2)*4)(r3)
167 lwz r28,((JB_GPRS+14)*4)(r3)
168 lfd fp28,((JB_FPRS+14*2)*4)(r3)
169 lwz r29,((JB_GPRS+15)*4)(r3)
170 lfd fp29,((JB_FPRS+15*2)*4)(r3)
171 lwz r30,((JB_GPRS+16)*4)(r3)
172 lfd fp30,((JB_FPRS+16*2)*4)(r3)
173 lwz r31,((JB_GPRS+17)*4)(r3)
174 lfd fp31,((JB_FPRS+17*2)*4)(r3)
175 mr r3,r4
176 blr
177 END (BP_SYM (__longjmp))