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e1f601e8 | 1 | /* Dump registers. |
d614a753 | 2 | Copyright (C) 1999-2020 Free Software Foundation, Inc. |
e1f601e8 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Jakub Jelinek <jj@ultra.linux.cz>, 1999. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
e1f601e8 UD |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
e1f601e8 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
e1f601e8 UD |
19 | |
20 | #include <sys/uio.h> | |
eb96ffb0 | 21 | #include <_itoa.h> |
e1f601e8 UD |
22 | |
23 | /* We will print the register dump in this format: | |
24 | ||
25 | TSTATE: XXXXXXXXXXXXXXXX TPC: XXXXXXXXXXXXXXXX TNPC: XXXXXXXXXXXXXXXX | |
26 | Y: XXXXXXXX | |
27 | g0: 0000000000000000 g1: XXXXXXXXXXXXXXXX g2: XXXXXXXXXXXXXXXX | |
28 | g3: XXXXXXXXXXXXXXXX g4: XXXXXXXXXXXXXXXX g5: XXXXXXXXXXXXXXXX | |
29 | g6: XXXXXXXXXXXXXXXX g7: XXXXXXXXXXXXXXXX | |
30 | o0: XXXXXXXXXXXXXXXX o1: XXXXXXXXXXXXXXXX o2: XXXXXXXXXXXXXXXX | |
31 | o3: XXXXXXXXXXXXXXXX o4: XXXXXXXXXXXXXXXX o5: XXXXXXXXXXXXXXXX | |
32 | sp: XXXXXXXXXXXXXXXX o7: XXXXXXXXXXXXXXXX | |
33 | l0: XXXXXXXXXXXXXXXX l1: XXXXXXXXXXXXXXXX l2: XXXXXXXXXXXXXXXX | |
34 | l3: XXXXXXXXXXXXXXXX l4: XXXXXXXXXXXXXXXX l5: XXXXXXXXXXXXXXXX | |
35 | l6: XXXXXXXXXXXXXXXX l7: XXXXXXXXXXXXXXXX | |
36 | i0: XXXXXXXXXXXXXXXX i1: XXXXXXXXXXXXXXXX i2: XXXXXXXXXXXXXXXX | |
37 | i3: XXXXXXXXXXXXXXXX i4: XXXXXXXXXXXXXXXX i5: XXXXXXXXXXXXXXXX | |
38 | fp: XXXXXXXXXXXXXXXX i7: XXXXXXXXXXXXXXXX | |
39 | ||
7b19af68 | 40 | Mask: XXXXXXXXXXXXXXXX XFSR: XXXXXXXXXXXXXXXX GSR: XX FPRS: X |
e1f601e8 UD |
41 | f0: XXXXXXXXXXXXXXXX f2: XXXXXXXXXXXXXXXX f4: XXXXXXXXXXXXXXXX |
42 | f6: XXXXXXXXXXXXXXXX f8: XXXXXXXXXXXXXXXX f10: XXXXXXXXXXXXXXXX | |
43 | f12: XXXXXXXXXXXXXXXX f14: XXXXXXXXXXXXXXXX f16: XXXXXXXXXXXXXXXX | |
44 | f18: XXXXXXXXXXXXXXXX f20: XXXXXXXXXXXXXXXX f22: XXXXXXXXXXXXXXXX | |
45 | f24: XXXXXXXXXXXXXXXX f26: XXXXXXXXXXXXXXXX f28: XXXXXXXXXXXXXXXX | |
46 | f30: XXXXXXXXXXXXXXXX f32: XXXXXXXXXXXXXXXX f34: XXXXXXXXXXXXXXXX | |
47 | f36: XXXXXXXXXXXXXXXX f38: XXXXXXXXXXXXXXXX f40: XXXXXXXXXXXXXXXX | |
48 | f42: XXXXXXXXXXXXXXXX f44: XXXXXXXXXXXXXXXX f46: XXXXXXXXXXXXXXXX | |
49 | f48: XXXXXXXXXXXXXXXX f50: XXXXXXXXXXXXXXXX f52: XXXXXXXXXXXXXXXX | |
50 | f54: XXXXXXXXXXXXXXXX f56: XXXXXXXXXXXXXXXX f58: XXXXXXXXXXXXXXXX | |
51 | f60: XXXXXXXXXXXXXXXX f62: XXXXXXXXXXXXXXXX | |
52 | ||
53 | */ | |
54 | ||
55 | static void | |
56 | hexvalue (unsigned long int value, char *buf, size_t len) | |
57 | { | |
58 | char *cp = _itoa_word (value, buf + len, 16, 0); | |
59 | while (cp > buf) | |
60 | *--cp = '0'; | |
61 | } | |
62 | ||
a43565ac AZ |
63 | /* The sparc64 kernel signal frame for SA_SIGINFO is defined as: |
64 | ||
65 | struct rt_signal_frame | |
66 | { | |
67 | struct sparc_stackf ss; | |
68 | siginfo_t info; | |
69 | struct pt_regs regs; <- void *ctx | |
70 | __siginfo_fpu_t *fpu_save; | |
71 | stack_t stack; | |
72 | sigset_t mask; | |
73 | __siginfo_rwin_t *rwin_save; | |
74 | }; | |
75 | ||
76 | Unlike other architectures, sparc32 passes pt_regs32 REGS pointers as | |
77 | the third argument to a sa_sigaction handler with SA_SIGINFO enabled. */ | |
78 | ||
e1f601e8 | 79 | static void |
a43565ac | 80 | register_dump (int fd, void *ctx) |
e1f601e8 UD |
81 | { |
82 | char regs[36][16]; | |
e9b3e3c5 | 83 | char fregs[68][8]; |
e1f601e8 UD |
84 | struct iovec iov[150]; |
85 | size_t nr = 0; | |
86 | int i; | |
a43565ac AZ |
87 | struct pt_regs *ptregs = (struct pt_regs*) ((siginfo_t *)ctx + 1); |
88 | unsigned long *r = (unsigned long *) (ptregs->u_regs[14] + STACK_BIAS); | |
89 | __siginfo_fpu_t *f = (__siginfo_fpu_t *)(ptregs + 1); | |
90 | struct kernel_sigset_t { | |
91 | unsigned long sig[1]; | |
92 | } *mask = (struct kernel_sigset_t *)((stack_t *)(f + 1) + 1); | |
e1f601e8 UD |
93 | |
94 | #define ADD_STRING(str) \ | |
95 | iov[nr].iov_base = (char *) str; \ | |
96 | iov[nr].iov_len = strlen (str); \ | |
97 | ++nr | |
98 | #define ADD_MEM(str, len) \ | |
99 | iov[nr].iov_base = str; \ | |
100 | iov[nr].iov_len = len; \ | |
101 | ++nr | |
102 | ||
103 | /* Generate strings of register contents. */ | |
a43565ac AZ |
104 | hexvalue (ptregs->tstate, regs[0], 16); |
105 | hexvalue (ptregs->tpc, regs[1], 16); | |
106 | hexvalue (ptregs->tnpc, regs[2], 16); | |
107 | hexvalue (ptregs->y, regs[3], 8); | |
e1f601e8 | 108 | for (i = 1; i <= 15; i++) |
a43565ac | 109 | hexvalue (ptregs->u_regs[i], regs[3+i], 16); |
e1f601e8 | 110 | for (i = 0; i <= 15; i++) |
a43565ac AZ |
111 | hexvalue (r[i], regs[19+i], 16); |
112 | hexvalue (mask->sig[0], regs[35], 16); | |
e1f601e8 UD |
113 | |
114 | /* Generate the output. */ | |
115 | ADD_STRING ("Register dump:\n\n TSTATE: "); | |
116 | ADD_MEM (regs[0], 16); | |
117 | ADD_STRING (" TPC: "); | |
118 | ADD_MEM (regs[1], 16); | |
119 | ADD_STRING (" TNPC: "); | |
120 | ADD_MEM (regs[2], 16); | |
121 | ADD_STRING ("\n Y: "); | |
122 | ADD_MEM (regs[3], 8); | |
123 | ADD_STRING ("\n g0: 0000000000000000 g1: "); | |
124 | ADD_MEM (regs[4], 16); | |
125 | ADD_STRING (" g2: "); | |
126 | ADD_MEM (regs[5], 16); | |
127 | ADD_STRING ("\n g3: "); | |
128 | ADD_MEM (regs[6], 16); | |
129 | ADD_STRING (" g4: "); | |
130 | ADD_MEM (regs[7], 16); | |
131 | ADD_STRING (" g5: "); | |
132 | ADD_MEM (regs[8], 16); | |
133 | ADD_STRING ("\n g6: "); | |
134 | ADD_MEM (regs[9], 16); | |
135 | ADD_STRING (" g7: "); | |
136 | ADD_MEM (regs[10], 16); | |
137 | ADD_STRING ("\n o0: "); | |
138 | ADD_MEM (regs[11], 16); | |
139 | ADD_STRING (" o1: "); | |
140 | ADD_MEM (regs[12], 16); | |
141 | ADD_STRING (" o2: "); | |
142 | ADD_MEM (regs[13], 16); | |
143 | ADD_STRING ("\n o3: "); | |
144 | ADD_MEM (regs[14], 16); | |
145 | ADD_STRING (" o4: "); | |
146 | ADD_MEM (regs[15], 16); | |
147 | ADD_STRING (" o5: "); | |
148 | ADD_MEM (regs[16], 16); | |
149 | ADD_STRING ("\n sp: "); | |
150 | ADD_MEM (regs[17], 16); | |
151 | ADD_STRING (" o7: "); | |
152 | ADD_MEM (regs[18], 16); | |
153 | ADD_STRING ("\n l0: "); | |
154 | ADD_MEM (regs[19], 16); | |
155 | ADD_STRING (" l1: "); | |
156 | ADD_MEM (regs[20], 16); | |
157 | ADD_STRING (" l2: "); | |
158 | ADD_MEM (regs[21], 16); | |
159 | ADD_STRING ("\n l3: "); | |
160 | ADD_MEM (regs[22], 16); | |
161 | ADD_STRING (" l4: "); | |
162 | ADD_MEM (regs[23], 16); | |
163 | ADD_STRING (" l5: "); | |
164 | ADD_MEM (regs[24], 16); | |
165 | ADD_STRING ("\n l6: "); | |
166 | ADD_MEM (regs[25], 16); | |
167 | ADD_STRING (" l7: "); | |
168 | ADD_MEM (regs[26], 16); | |
169 | ADD_STRING ("\n i0: "); | |
170 | ADD_MEM (regs[27], 16); | |
171 | ADD_STRING (" i1: "); | |
172 | ADD_MEM (regs[28], 16); | |
173 | ADD_STRING (" i2: "); | |
174 | ADD_MEM (regs[29], 16); | |
175 | ADD_STRING ("\n i3: "); | |
176 | ADD_MEM (regs[30], 16); | |
177 | ADD_STRING (" i4: "); | |
178 | ADD_MEM (regs[31], 16); | |
179 | ADD_STRING (" i5: "); | |
180 | ADD_MEM (regs[32], 16); | |
181 | ADD_STRING ("\n fp: "); | |
182 | ADD_MEM (regs[33], 16); | |
183 | ADD_STRING (" i7: "); | |
184 | ADD_MEM (regs[34], 16); | |
7b19af68 UD |
185 | ADD_STRING ("\n\n Mask: "); |
186 | ADD_MEM (regs[35], 16); | |
e1f601e8 | 187 | |
e1f601e8 UD |
188 | if (f != NULL) |
189 | { | |
e9b3e3c5 UD |
190 | for (i = 0; i < 64; i++) |
191 | hexvalue (f->si_float_regs[i], fregs[i], 8); | |
192 | hexvalue (f->si_fsr, fregs[64], 16); | |
193 | hexvalue (f->si_gsr, fregs[66], 2); | |
194 | hexvalue (f->si_fprs, fregs[67], 1); | |
195 | ADD_STRING (" XFSR: "); | |
196 | ADD_MEM (fregs[64], 16); | |
197 | ADD_STRING (" GSR: "); | |
198 | ADD_MEM (fregs[66], 2); | |
199 | ADD_STRING (" FPRS: "); | |
200 | ADD_MEM (fregs[67], 1); | |
201 | ADD_STRING ("\n f0: "); | |
202 | ADD_MEM (fregs[0], 16); | |
203 | ADD_STRING (" f2: "); | |
204 | ADD_MEM (fregs[2], 16); | |
205 | ADD_STRING (" f4: "); | |
206 | ADD_MEM (fregs[4], 16); | |
207 | ADD_STRING ("\n f6: "); | |
208 | ADD_MEM (fregs[6], 16); | |
209 | ADD_STRING (" f8: "); | |
210 | ADD_MEM (fregs[8], 16); | |
211 | ADD_STRING (" f10: "); | |
212 | ADD_MEM (fregs[10], 16); | |
213 | ADD_STRING ("\n f12: "); | |
214 | ADD_MEM (fregs[12], 16); | |
215 | ADD_STRING (" f14: "); | |
216 | ADD_MEM (fregs[14], 16); | |
217 | ADD_STRING (" f16: "); | |
218 | ADD_MEM (fregs[16], 16); | |
219 | ADD_STRING ("\n f18: "); | |
220 | ADD_MEM (fregs[18], 16); | |
221 | ADD_STRING (" f20: "); | |
222 | ADD_MEM (fregs[20], 16); | |
223 | ADD_STRING (" f22: "); | |
224 | ADD_MEM (fregs[22], 16); | |
225 | ADD_STRING ("\n f24: "); | |
226 | ADD_MEM (fregs[24], 16); | |
227 | ADD_STRING (" f26: "); | |
228 | ADD_MEM (fregs[26], 16); | |
229 | ADD_STRING (" f28: "); | |
230 | ADD_MEM (fregs[28], 16); | |
231 | ADD_STRING ("\n f30: "); | |
232 | ADD_MEM (fregs[30], 16); | |
233 | ADD_STRING (" f32: "); | |
234 | ADD_MEM (fregs[32], 16); | |
235 | ADD_STRING (" f34: "); | |
236 | ADD_MEM (fregs[34], 16); | |
237 | ADD_STRING ("\n f36: "); | |
238 | ADD_MEM (fregs[36], 16); | |
239 | ADD_STRING (" f38: "); | |
240 | ADD_MEM (fregs[38], 16); | |
241 | ADD_STRING (" f40: "); | |
242 | ADD_MEM (fregs[40], 16); | |
243 | ADD_STRING ("\n f42: "); | |
244 | ADD_MEM (fregs[42], 16); | |
245 | ADD_STRING (" f44: "); | |
246 | ADD_MEM (fregs[44], 16); | |
247 | ADD_STRING (" f46: "); | |
248 | ADD_MEM (fregs[46], 16); | |
249 | ADD_STRING ("\n f48: "); | |
250 | ADD_MEM (fregs[48], 16); | |
251 | ADD_STRING (" f50: "); | |
252 | ADD_MEM (fregs[50], 16); | |
253 | ADD_STRING (" f52: "); | |
254 | ADD_MEM (fregs[52], 16); | |
255 | ADD_STRING ("\n f54: "); | |
256 | ADD_MEM (fregs[54], 16); | |
257 | ADD_STRING (" f56: "); | |
258 | ADD_MEM (fregs[56], 16); | |
259 | ADD_STRING (" f58: "); | |
260 | ADD_MEM (fregs[58], 16); | |
261 | ADD_STRING ("\n f60: "); | |
262 | ADD_MEM (fregs[60], 16); | |
263 | ADD_STRING (" f62: "); | |
264 | ADD_MEM (fregs[62], 16); | |
265 | } | |
e1f601e8 UD |
266 | |
267 | ADD_STRING ("\n"); | |
268 | ||
269 | /* Write the stuff out. */ | |
270 | writev (fd, iov, nr); | |
271 | } | |
272 | ||
273 | ||
274 | #define REGISTER_DUMP register_dump (fd, ctx) |