projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| ed1ac6a2 | 1 | /* Dump registers. |
| 2b778ceb | 2 | Copyright (C) 1998-2021 Free Software Foundation, Inc. |
| ed1ac6a2 | 3 | This file is part of the GNU C Library. |
| ed1ac6a2 UD |
4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 41bdb6e2 AJ |
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. | |
| ed1ac6a2 UD |
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 | |
| 41bdb6e2 | 13 | Lesser General Public License for more details. |
| ed1ac6a2 | 14 | |
| 41bdb6e2 | 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/>. */ |
| ed1ac6a2 UD |
18 | |
| 19 | #include <sys/uio.h> | |
| eb96ffb0 | 20 | #include <_itoa.h> |
| ed1ac6a2 UD |
21 | |
| 22 | /* We will print the register dump in this format: | |
| 23 | ||
| 24 | EAX: XXXXXXXX EBX: XXXXXXXX ECX: XXXXXXXX EDX: XXXXXXXX | |
| 25 | ESI: XXXXXXXX EDI: XXXXXXXX EBP: XXXXXXXX ESP: XXXXXXXX | |
| 26 | ||
| 27 | EIP: XXXXXXXX EFLAGS: XXXXXXXX | |
| 28 | ||
| 29 | CS: XXXX DS: XXXX ES: XXXX FS: XXXX GS: XXXX SS: XXXX | |
| 30 | ||
| 31 | Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX | |
| 32 | ESP/SIGNAL: XXXXXXXX CR2: XXXXXXXX | |
| 33 | ||
| 34 | FPUCW: XXXXXXXX FPUSW: XXXXXXXX TAG: XXXXXXXX | |
| 35 | IPOFF: XXXXXXXX CSSEL: XXXX DATAOFF: XXXXXXXX DATASEL: XXXX | |
| 36 | ||
| 37 | ST(0) XXXX XXXXXXXXXXXXXXXX ST(1) XXXX XXXXXXXXXXXXXXXX | |
| 38 | ST(2) XXXX XXXXXXXXXXXXXXXX ST(3) XXXX XXXXXXXXXXXXXXXX | |
| 39 | ST(4) XXXX XXXXXXXXXXXXXXXX ST(5) XXXX XXXXXXXXXXXXXXXX | |
| 40 | ST(6) XXXX XXXXXXXXXXXXXXXX ST(7) XXXX XXXXXXXXXXXXXXXX | |
| 41 | ||
| 42 | */ | |
| 43 | ||
| 44 | static void | |
| 45 | hexvalue (unsigned long int value, char *buf, size_t len) | |
| 46 | { | |
| 47 | char *cp = _itoa_word (value, buf + len, 16, 0); | |
| 48 | while (cp > buf) | |
| 49 | *--cp = '0'; | |
| 50 | } | |
| 51 | ||
| 52 | static void | |
| a43565ac | 53 | register_dump (int fd, struct ucontext_t *ctx) |
| ed1ac6a2 UD |
54 | { |
| 55 | char regs[21][8]; | |
| 56 | char fpregs[31][8]; | |
| 57 | struct iovec iov[97]; | |
| 58 | size_t nr = 0; | |
| 59 | ||
| 60 | #define ADD_STRING(str) \ | |
| 61 | iov[nr].iov_base = (char *) str; \ | |
| 62 | iov[nr].iov_len = strlen (str); \ | |
| 63 | ++nr | |
| 64 | #define ADD_MEM(str, len) \ | |
| 65 | iov[nr].iov_base = str; \ | |
| 66 | iov[nr].iov_len = len; \ | |
| 67 | ++nr | |
| 68 | ||
| 69 | /* Generate strings of register contents. */ | |
| a43565ac AZ |
70 | hexvalue (ctx->uc_mcontext.gregs[REG_EAX], regs[0], 8); |
| 71 | hexvalue (ctx->uc_mcontext.gregs[REG_EBX], regs[1], 8); | |
| 72 | hexvalue (ctx->uc_mcontext.gregs[REG_ECX], regs[2], 8); | |
| 73 | hexvalue (ctx->uc_mcontext.gregs[REG_EDX], regs[3], 8); | |
| 74 | hexvalue (ctx->uc_mcontext.gregs[REG_ESI], regs[4], 8); | |
| 75 | hexvalue (ctx->uc_mcontext.gregs[REG_EDI], regs[5], 8); | |
| 76 | hexvalue (ctx->uc_mcontext.gregs[REG_EBP], regs[6], 8); | |
| 77 | hexvalue (ctx->uc_mcontext.gregs[REG_ESP], regs[7], 8); | |
| 78 | hexvalue (ctx->uc_mcontext.gregs[REG_EIP], regs[8], 8); | |
| 79 | hexvalue (ctx->uc_flags, regs[9], 8); | |
| 80 | hexvalue (ctx->uc_mcontext.gregs[REG_CS], regs[10], 4); | |
| 81 | hexvalue (ctx->uc_mcontext.gregs[REG_DS], regs[11], 4); | |
| 82 | hexvalue (ctx->uc_mcontext.gregs[REG_ES], regs[12], 4); | |
| 83 | hexvalue (ctx->uc_mcontext.gregs[REG_FS], regs[13], 4); | |
| 84 | hexvalue (ctx->uc_mcontext.gregs[REG_GS], regs[14], 4); | |
| 85 | hexvalue (ctx->uc_mcontext.gregs[REG_SS], regs[15], 4); | |
| 86 | hexvalue (ctx->uc_mcontext.gregs[REG_TRAPNO], regs[16], 8); | |
| 87 | hexvalue (ctx->uc_mcontext.gregs[REG_ERR], regs[17], 8); | |
| 88 | hexvalue (ctx->uc_mcontext.oldmask, regs[18], 8); | |
| 89 | hexvalue (ctx->uc_mcontext.gregs[REG_UESP], regs[19], 8); | |
| 90 | hexvalue (ctx->uc_mcontext.cr2, regs[20], 8); | |
| ed1ac6a2 UD |
91 | |
| 92 | /* Generate the output. */ | |
| 93 | ADD_STRING ("Register dump:\n\n EAX: "); | |
| 94 | ADD_MEM (regs[0], 8); | |
| 95 | ADD_STRING (" EBX: "); | |
| 96 | ADD_MEM (regs[1], 8); | |
| 97 | ADD_STRING (" ECX: "); | |
| 98 | ADD_MEM (regs[2], 8); | |
| 99 | ADD_STRING (" EDX: "); | |
| 100 | ADD_MEM (regs[3], 8); | |
| 101 | ADD_STRING ("\n ESI: "); | |
| 102 | ADD_MEM (regs[4], 8); | |
| 103 | ADD_STRING (" EDI: "); | |
| 104 | ADD_MEM (regs[5], 8); | |
| 105 | ADD_STRING (" EBP: "); | |
| 106 | ADD_MEM (regs[6], 8); | |
| 107 | ADD_STRING (" ESP: "); | |
| 108 | ADD_MEM (regs[7], 8); | |
| 109 | ADD_STRING ("\n\n EIP: "); | |
| 110 | ADD_MEM (regs[8], 8); | |
| 111 | ADD_STRING (" EFLAGS: "); | |
| 112 | ADD_MEM (regs[9], 8); | |
| 113 | ADD_STRING ("\n\n CS: "); | |
| 114 | ADD_MEM (regs[10], 4); | |
| 115 | ADD_STRING (" DS: "); | |
| 116 | ADD_MEM (regs[11], 4); | |
| 117 | ADD_STRING (" ES: "); | |
| 118 | ADD_MEM (regs[12], 4); | |
| 119 | ADD_STRING (" FS: "); | |
| 120 | ADD_MEM (regs[13], 4); | |
| 121 | ADD_STRING (" GS: "); | |
| 122 | ADD_MEM (regs[14], 4); | |
| 123 | ADD_STRING (" SS: "); | |
| 124 | ADD_MEM (regs[15], 4); | |
| 125 | ADD_STRING ("\n\n Trap: "); | |
| 126 | ADD_MEM (regs[16], 8); | |
| 127 | ADD_STRING (" Error: "); | |
| 128 | ADD_MEM (regs[17], 8); | |
| 129 | ADD_STRING (" OldMask: "); | |
| 130 | ADD_MEM (regs[18], 8); | |
| 131 | ADD_STRING ("\n ESP/signal: "); | |
| 132 | ADD_MEM (regs[19], 8); | |
| 133 | ADD_STRING (" CR2: "); | |
| 134 | ADD_MEM (regs[20], 8); | |
| 135 | ||
| a43565ac AZ |
136 | /* Generate output for the FPU control/status registers. */ |
| 137 | hexvalue (ctx->__fpregs_mem.cw, fpregs[0], 8); | |
| 138 | hexvalue (ctx->__fpregs_mem.sw, fpregs[1], 8); | |
| 139 | hexvalue (ctx->__fpregs_mem.tag, fpregs[2], 8); | |
| 140 | hexvalue (ctx->__fpregs_mem.ipoff, fpregs[3], 8); | |
| 141 | hexvalue (ctx->__fpregs_mem.cssel, fpregs[4], 4); | |
| 142 | hexvalue (ctx->__fpregs_mem.dataoff, fpregs[5], 8); | |
| 143 | hexvalue (ctx->__fpregs_mem.datasel, fpregs[6], 4); | |
| 144 | ||
| 145 | ADD_STRING ("\n\n FPUCW: "); | |
| 146 | ADD_MEM (fpregs[0], 8); | |
| 147 | ADD_STRING (" FPUSW: "); | |
| 148 | ADD_MEM (fpregs[1], 8); | |
| 149 | ADD_STRING (" TAG: "); | |
| 150 | ADD_MEM (fpregs[2], 8); | |
| 151 | ADD_STRING ("\n IPOFF: "); | |
| 152 | ADD_MEM (fpregs[3], 8); | |
| 153 | ADD_STRING (" CSSEL: "); | |
| 154 | ADD_MEM (fpregs[4], 4); | |
| 155 | ADD_STRING (" DATAOFF: "); | |
| 156 | ADD_MEM (fpregs[5], 8); | |
| 157 | ADD_STRING (" DATASEL: "); | |
| 158 | ADD_MEM (fpregs[6], 4); | |
| 159 | ||
| 160 | /* Now the real FPU registers. */ | |
| 161 | hexvalue (ctx->__fpregs_mem._st[0].exponent, fpregs[7], 8); | |
| 162 | hexvalue (ctx->__fpregs_mem._st[0].significand[3] << 16 | |
| 163 | | ctx->__fpregs_mem._st[0].significand[2], fpregs[8], 8); | |
| 164 | hexvalue (ctx->__fpregs_mem._st[0].significand[1] << 16 | |
| 165 | | ctx->__fpregs_mem._st[0].significand[0], fpregs[9], 8); | |
| 166 | hexvalue (ctx->__fpregs_mem._st[1].exponent, fpregs[10], 8); | |
| 167 | hexvalue (ctx->__fpregs_mem._st[1].significand[3] << 16 | |
| 168 | | ctx->__fpregs_mem._st[1].significand[2], fpregs[11], 8); | |
| 169 | hexvalue (ctx->__fpregs_mem._st[1].significand[1] << 16 | |
| 170 | | ctx->__fpregs_mem._st[1].significand[0], fpregs[12], 8); | |
| 171 | hexvalue (ctx->__fpregs_mem._st[2].exponent, fpregs[13], 8); | |
| 172 | hexvalue (ctx->__fpregs_mem._st[2].significand[3] << 16 | |
| 173 | | ctx->__fpregs_mem._st[2].significand[2], fpregs[14], 8); | |
| 174 | hexvalue (ctx->__fpregs_mem._st[2].significand[1] << 16 | |
| 175 | | ctx->__fpregs_mem._st[2].significand[0], fpregs[15], 8); | |
| 176 | hexvalue (ctx->__fpregs_mem._st[3].exponent, fpregs[16], 8); | |
| 177 | hexvalue (ctx->__fpregs_mem._st[3].significand[3] << 16 | |
| 178 | | ctx->__fpregs_mem._st[3].significand[2], fpregs[17], 8); | |
| 179 | hexvalue (ctx->__fpregs_mem._st[3].significand[1] << 16 | |
| 180 | | ctx->__fpregs_mem._st[3].significand[0], fpregs[18], 8); | |
| 181 | hexvalue (ctx->__fpregs_mem._st[4].exponent, fpregs[19], 8); | |
| 182 | hexvalue (ctx->__fpregs_mem._st[4].significand[3] << 16 | |
| 183 | | ctx->__fpregs_mem._st[4].significand[2], fpregs[20], 8); | |
| 184 | hexvalue (ctx->__fpregs_mem._st[4].significand[1] << 16 | |
| 185 | | ctx->__fpregs_mem._st[4].significand[0], fpregs[21], 8); | |
| 186 | hexvalue (ctx->__fpregs_mem._st[5].exponent, fpregs[22], 8); | |
| 187 | hexvalue (ctx->__fpregs_mem._st[5].significand[3] << 16 | |
| 188 | | ctx->__fpregs_mem._st[5].significand[2], fpregs[23], 8); | |
| 189 | hexvalue (ctx->__fpregs_mem._st[5].significand[1] << 16 | |
| 190 | | ctx->__fpregs_mem._st[5].significand[0], fpregs[24], 8); | |
| 191 | hexvalue (ctx->__fpregs_mem._st[6].exponent, fpregs[25], 8); | |
| 192 | hexvalue (ctx->__fpregs_mem._st[6].significand[3] << 16 | |
| 193 | | ctx->__fpregs_mem._st[6].significand[2], fpregs[26], 8); | |
| 194 | hexvalue (ctx->__fpregs_mem._st[6].significand[1] << 16 | |
| 195 | | ctx->__fpregs_mem._st[6].significand[0], fpregs[27], 8); | |
| 196 | hexvalue (ctx->__fpregs_mem._st[7].exponent, fpregs[28], 8); | |
| 197 | hexvalue (ctx->__fpregs_mem._st[7].significand[3] << 16 | |
| 198 | | ctx->__fpregs_mem._st[7].significand[2], fpregs[29], 8); | |
| 199 | hexvalue (ctx->__fpregs_mem._st[7].significand[1] << 16 | |
| 200 | | ctx->__fpregs_mem._st[7].significand[0], fpregs[30], 8); | |
| 201 | ||
| 202 | ADD_STRING ("\n\n ST(0) "); | |
| 203 | ADD_MEM (fpregs[7], 4); | |
| 204 | ADD_STRING (" "); | |
| 205 | ADD_MEM (fpregs[8], 8); | |
| 206 | ADD_MEM (fpregs[9], 8); | |
| 207 | ADD_STRING (" ST(1) "); | |
| 208 | ADD_MEM (fpregs[10], 4); | |
| 209 | ADD_STRING (" "); | |
| 210 | ADD_MEM (fpregs[11], 8); | |
| 211 | ADD_MEM (fpregs[12], 8); | |
| 212 | ADD_STRING ("\n ST(2) "); | |
| 213 | ADD_MEM (fpregs[13], 4); | |
| 214 | ADD_STRING (" "); | |
| 215 | ADD_MEM (fpregs[14], 8); | |
| 216 | ADD_MEM (fpregs[15], 8); | |
| 217 | ADD_STRING (" ST(3) "); | |
| 218 | ADD_MEM (fpregs[16], 4); | |
| 219 | ADD_STRING (" "); | |
| 220 | ADD_MEM (fpregs[17], 8); | |
| 221 | ADD_MEM (fpregs[18], 8); | |
| 222 | ADD_STRING ("\n ST(4) "); | |
| 223 | ADD_MEM (fpregs[19], 4); | |
| 224 | ADD_STRING (" "); | |
| 225 | ADD_MEM (fpregs[20], 8); | |
| 226 | ADD_MEM (fpregs[21], 8); | |
| 227 | ADD_STRING (" ST(5) "); | |
| 228 | ADD_MEM (fpregs[22], 4); | |
| 229 | ADD_STRING (" "); | |
| 230 | ADD_MEM (fpregs[23], 8); | |
| 231 | ADD_MEM (fpregs[24], 8); | |
| 232 | ADD_STRING ("\n ST(6) "); | |
| 233 | ADD_MEM (fpregs[25], 4); | |
| 234 | ADD_STRING (" "); | |
| 235 | ADD_MEM (fpregs[26], 8); | |
| 236 | ADD_MEM (fpregs[27], 8); | |
| 237 | ADD_STRING (" ST(7) "); | |
| 238 | ADD_MEM (fpregs[28], 4); | |
| 239 | ADD_STRING (" "); | |
| 240 | ADD_MEM (fpregs[29], 8); | |
| 241 | ADD_MEM (fpregs[30], 8); | |
| ed1ac6a2 UD |
242 | |
| 243 | ADD_STRING ("\n"); | |
| 244 | ||
| 245 | /* Write the stuff out. */ | |
| 246 | writev (fd, iov, nr); | |
| 247 | } | |
| 248 | ||
| 249 | ||
| a43565ac | 250 | #define REGISTER_DUMP register_dump (fd, ctx) |