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e5432e28 | 1 | /* Dump registers. |
688903eb | 2 | Copyright (C) 1998-2018 Free Software Foundation, Inc. |
e5432e28 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Philip Blundell <pb@nexus.co.uk>, 1998. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b 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. | |
e5432e28 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 | |
3214b89b | 14 | Lesser General Public License for more details. |
e5432e28 | 15 | |
3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
e5432e28 UD |
19 | |
20 | #include <sys/uio.h> | |
bf98494a | 21 | #include <_itoa.h> |
c206ce7f | 22 | #include <sys/ucontext.h> |
e5432e28 UD |
23 | |
24 | /* We will print the register dump in this format: | |
25 | ||
26 | R0: XXXXXXXX R1: XXXXXXXX R2: XXXXXXXX R3: XXXXXXXX | |
27 | R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX | |
28 | R8: XXXXXXXX R9: XXXXXXXX SL: XXXXXXXX FP: XXXXXXXX | |
29 | IP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX PC: XXXXXXXX | |
30 | ||
31 | CPSR: XXXXXXXX | |
32 | ||
33 | Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX | |
7ace52d0 | 34 | Addr: XXXXXXXX |
e5432e28 UD |
35 | |
36 | */ | |
37 | ||
38 | static void | |
39 | hexvalue (unsigned long int value, char *buf, size_t len) | |
40 | { | |
41 | char *cp = _itoa_word (value, buf + len, 16, 0); | |
42 | while (cp > buf) | |
43 | *--cp = '0'; | |
44 | } | |
45 | ||
46 | static void | |
25128773 | 47 | register_dump (int fd, const ucontext_t *ctx) |
e5432e28 | 48 | { |
7ace52d0 | 49 | char regs[21][8]; |
e5432e28 UD |
50 | struct iovec iov[97]; |
51 | size_t nr = 0; | |
52 | ||
53 | #define ADD_STRING(str) \ | |
54 | iov[nr].iov_base = (char *) str; \ | |
55 | iov[nr].iov_len = strlen (str); \ | |
56 | ++nr | |
57 | #define ADD_MEM(str, len) \ | |
58 | iov[nr].iov_base = str; \ | |
59 | iov[nr].iov_len = len; \ | |
60 | ++nr | |
61 | ||
62 | /* Generate strings of register contents. */ | |
c206ce7f DJ |
63 | hexvalue (ctx->uc_mcontext.arm_r0, regs[0], 8); |
64 | hexvalue (ctx->uc_mcontext.arm_r1, regs[1], 8); | |
65 | hexvalue (ctx->uc_mcontext.arm_r2, regs[2], 8); | |
66 | hexvalue (ctx->uc_mcontext.arm_r3, regs[3], 8); | |
67 | hexvalue (ctx->uc_mcontext.arm_r4, regs[4], 8); | |
68 | hexvalue (ctx->uc_mcontext.arm_r5, regs[5], 8); | |
69 | hexvalue (ctx->uc_mcontext.arm_r6, regs[6], 8); | |
70 | hexvalue (ctx->uc_mcontext.arm_r7, regs[7], 8); | |
71 | hexvalue (ctx->uc_mcontext.arm_r8, regs[8], 8); | |
72 | hexvalue (ctx->uc_mcontext.arm_r9, regs[9], 8); | |
73 | hexvalue (ctx->uc_mcontext.arm_r10, regs[10], 8); | |
74 | hexvalue (ctx->uc_mcontext.arm_fp, regs[11], 8); | |
75 | hexvalue (ctx->uc_mcontext.arm_ip, regs[12], 8); | |
76 | hexvalue (ctx->uc_mcontext.arm_sp, regs[13], 8); | |
77 | hexvalue (ctx->uc_mcontext.arm_lr, regs[14], 8); | |
78 | hexvalue (ctx->uc_mcontext.arm_pc, regs[15], 8); | |
79 | hexvalue (ctx->uc_mcontext.arm_cpsr, regs[16], 8); | |
80 | hexvalue (ctx->uc_mcontext.trap_no, regs[17], 8); | |
81 | hexvalue (ctx->uc_mcontext.error_code, regs[18], 8); | |
82 | hexvalue (ctx->uc_mcontext.oldmask, regs[19], 8); | |
83 | hexvalue (ctx->uc_mcontext.fault_address, regs[20], 8); | |
e5432e28 UD |
84 | |
85 | /* Generate the output. */ | |
86 | ADD_STRING ("Register dump:\n\n R0: "); | |
87 | ADD_MEM (regs[0], 8); | |
88 | ADD_STRING (" R1: "); | |
89 | ADD_MEM (regs[1], 8); | |
90 | ADD_STRING (" R2: "); | |
91 | ADD_MEM (regs[2], 8); | |
92 | ADD_STRING (" R3: "); | |
93 | ADD_MEM (regs[3], 8); | |
94 | ADD_STRING ("\n R4: "); | |
95 | ADD_MEM (regs[4], 8); | |
96 | ADD_STRING (" R5: "); | |
97 | ADD_MEM (regs[5], 8); | |
98 | ADD_STRING (" R6: "); | |
99 | ADD_MEM (regs[6], 8); | |
100 | ADD_STRING (" R7: "); | |
101 | ADD_MEM (regs[7], 8); | |
102 | ADD_STRING ("\n R8: "); | |
103 | ADD_MEM (regs[8], 8); | |
104 | ADD_STRING (" R9: "); | |
105 | ADD_MEM (regs[9], 8); | |
106 | ADD_STRING (" SL: "); | |
107 | ADD_MEM (regs[10], 8); | |
108 | ADD_STRING (" FP: "); | |
109 | ADD_MEM (regs[11], 8); | |
110 | ADD_STRING ("\n IP: "); | |
111 | ADD_MEM (regs[12], 8); | |
112 | ADD_STRING (" SP: "); | |
113 | ADD_MEM (regs[13], 8); | |
114 | ADD_STRING (" LR: "); | |
115 | ADD_MEM (regs[14], 8); | |
116 | ADD_STRING (" PC: "); | |
117 | ADD_MEM (regs[15], 8); | |
118 | ADD_STRING ("\n\n CPSR: "); | |
119 | ADD_MEM (regs[16], 8); | |
120 | ADD_STRING ("\n\n Trap: "); | |
121 | ADD_MEM (regs[17], 8); | |
122 | ADD_STRING (" Error: "); | |
123 | ADD_MEM (regs[18], 8); | |
124 | ADD_STRING (" OldMask: "); | |
125 | ADD_MEM (regs[19], 8); | |
c206ce7f DJ |
126 | ADD_STRING ("\n Addr: "); |
127 | ADD_MEM (regs[20], 8); | |
e5432e28 UD |
128 | |
129 | ADD_STRING ("\n"); | |
130 | ||
131 | /* Write the stuff out. */ | |
132 | writev (fd, iov, nr); | |
133 | } | |
134 | ||
135 | ||
c206ce7f | 136 | #define REGISTER_DUMP register_dump (fd, ctx) |