| /* Dump registers. |
| Copyright (C) 1998-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Philip Blundell <pb@nexus.co.uk>, 1998. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sys/uio.h> |
| #include <_itoa.h> |
| #include <sys/ucontext.h> |
| |
| /* We will print the register dump in this format: |
| |
| R0: XXXXXXXX R1: XXXXXXXX R2: XXXXXXXX R3: XXXXXXXX |
| R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX |
| R8: XXXXXXXX R9: XXXXXXXX SL: XXXXXXXX FP: XXXXXXXX |
| IP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX PC: XXXXXXXX |
| |
| CPSR: XXXXXXXX |
| |
| Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX |
| Addr: XXXXXXXX |
| |
| */ |
| |
| static void |
| hexvalue (unsigned long int value, char *buf, size_t len) |
| { |
| char *cp = _itoa_word (value, buf + len, 16, 0); |
| while (cp > buf) |
| *--cp = '0'; |
| } |
| |
| static void |
| register_dump (int fd, const ucontext_t *ctx) |
| { |
| char regs[21][8]; |
| struct iovec iov[97]; |
| size_t nr = 0; |
| |
| #define ADD_STRING(str) \ |
| iov[nr].iov_base = (char *) str; \ |
| iov[nr].iov_len = strlen (str); \ |
| ++nr |
| #define ADD_MEM(str, len) \ |
| iov[nr].iov_base = str; \ |
| iov[nr].iov_len = len; \ |
| ++nr |
| |
| /* Generate strings of register contents. */ |
| hexvalue (ctx->uc_mcontext.arm_r0, regs[0], 8); |
| hexvalue (ctx->uc_mcontext.arm_r1, regs[1], 8); |
| hexvalue (ctx->uc_mcontext.arm_r2, regs[2], 8); |
| hexvalue (ctx->uc_mcontext.arm_r3, regs[3], 8); |
| hexvalue (ctx->uc_mcontext.arm_r4, regs[4], 8); |
| hexvalue (ctx->uc_mcontext.arm_r5, regs[5], 8); |
| hexvalue (ctx->uc_mcontext.arm_r6, regs[6], 8); |
| hexvalue (ctx->uc_mcontext.arm_r7, regs[7], 8); |
| hexvalue (ctx->uc_mcontext.arm_r8, regs[8], 8); |
| hexvalue (ctx->uc_mcontext.arm_r9, regs[9], 8); |
| hexvalue (ctx->uc_mcontext.arm_r10, regs[10], 8); |
| hexvalue (ctx->uc_mcontext.arm_fp, regs[11], 8); |
| hexvalue (ctx->uc_mcontext.arm_ip, regs[12], 8); |
| hexvalue (ctx->uc_mcontext.arm_sp, regs[13], 8); |
| hexvalue (ctx->uc_mcontext.arm_lr, regs[14], 8); |
| hexvalue (ctx->uc_mcontext.arm_pc, regs[15], 8); |
| hexvalue (ctx->uc_mcontext.arm_cpsr, regs[16], 8); |
| hexvalue (ctx->uc_mcontext.trap_no, regs[17], 8); |
| hexvalue (ctx->uc_mcontext.error_code, regs[18], 8); |
| hexvalue (ctx->uc_mcontext.oldmask, regs[19], 8); |
| hexvalue (ctx->uc_mcontext.fault_address, regs[20], 8); |
| |
| /* Generate the output. */ |
| ADD_STRING ("Register dump:\n\n R0: "); |
| ADD_MEM (regs[0], 8); |
| ADD_STRING (" R1: "); |
| ADD_MEM (regs[1], 8); |
| ADD_STRING (" R2: "); |
| ADD_MEM (regs[2], 8); |
| ADD_STRING (" R3: "); |
| ADD_MEM (regs[3], 8); |
| ADD_STRING ("\n R4: "); |
| ADD_MEM (regs[4], 8); |
| ADD_STRING (" R5: "); |
| ADD_MEM (regs[5], 8); |
| ADD_STRING (" R6: "); |
| ADD_MEM (regs[6], 8); |
| ADD_STRING (" R7: "); |
| ADD_MEM (regs[7], 8); |
| ADD_STRING ("\n R8: "); |
| ADD_MEM (regs[8], 8); |
| ADD_STRING (" R9: "); |
| ADD_MEM (regs[9], 8); |
| ADD_STRING (" SL: "); |
| ADD_MEM (regs[10], 8); |
| ADD_STRING (" FP: "); |
| ADD_MEM (regs[11], 8); |
| ADD_STRING ("\n IP: "); |
| ADD_MEM (regs[12], 8); |
| ADD_STRING (" SP: "); |
| ADD_MEM (regs[13], 8); |
| ADD_STRING (" LR: "); |
| ADD_MEM (regs[14], 8); |
| ADD_STRING (" PC: "); |
| ADD_MEM (regs[15], 8); |
| ADD_STRING ("\n\n CPSR: "); |
| ADD_MEM (regs[16], 8); |
| ADD_STRING ("\n\n Trap: "); |
| ADD_MEM (regs[17], 8); |
| ADD_STRING (" Error: "); |
| ADD_MEM (regs[18], 8); |
| ADD_STRING (" OldMask: "); |
| ADD_MEM (regs[19], 8); |
| ADD_STRING ("\n Addr: "); |
| ADD_MEM (regs[20], 8); |
| |
| ADD_STRING ("\n"); |
| |
| /* Write the stuff out. */ |
| writev (fd, iov, nr); |
| } |
| |
| |
| #define REGISTER_DUMP register_dump (fd, ctx) |