diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/arm/register-dump.h')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/arm/register-dump.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/arm/register-dump.h b/ports/sysdeps/unix/sysv/linux/arm/register-dump.h new file mode 100644 index 0000000000..3d72b84228 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/arm/register-dump.h @@ -0,0 +1,136 @@ +/* Dump registers. + Copyright (C) 1998-2012 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 struct ucontext *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) |