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/* Dump registers.
Copyright (C) 2000-2016 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
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>
/* We will print the register dump in this format:
GPR0: XXXXXXXX GPR1: XXXXXXXX GPR2: XXXXXXXX GPR3: XXXXXXXX
GPR4: XXXXXXXX GPR5: XXXXXXXX GPR6: XXXXXXXX GPR7: XXXXXXXX
GPR8: XXXXXXXX GPR9: XXXXXXXX GPRA: XXXXXXXX GPRB: XXXXXXXX
GPRC: XXXXXXXX GPRD: XXXXXXXX GPRE: XXXXXXXX GPRF: XXXXXXXX
PSW.MASK: XXXXXXXX PSW.ADDR: XXXXXXXX
ST(0) XXXX XXXXXXXXXXXXXXXX ST(1) XXXX XXXXXXXXXXXXXXXX
ST(2) XXXX XXXXXXXXXXXXXXXX ST(3) XXXX XXXXXXXXXXXXXXXX
ST(4) XXXX XXXXXXXXXXXXXXXX ST(5) XXXX XXXXXXXXXXXXXXXX
ST(6) XXXX XXXXXXXXXXXXXXXX ST(7) XXXX XXXXXXXXXXXXXXXX
*/
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, struct sigcontext *ctx)
{
char regs[19][8];
struct iovec iov[40];
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->sregs->regs.gprs[0], regs[0], 8);
hexvalue (ctx->sregs->regs.gprs[1], regs[1], 8);
hexvalue (ctx->sregs->regs.gprs[2], regs[2], 8);
hexvalue (ctx->sregs->regs.gprs[3], regs[3], 8);
hexvalue (ctx->sregs->regs.gprs[4], regs[4], 8);
hexvalue (ctx->sregs->regs.gprs[5], regs[5], 8);
hexvalue (ctx->sregs->regs.gprs[6], regs[6], 8);
hexvalue (ctx->sregs->regs.gprs[7], regs[7], 8);
hexvalue (ctx->sregs->regs.gprs[8], regs[8], 8);
hexvalue (ctx->sregs->regs.gprs[9], regs[9], 8);
hexvalue (ctx->sregs->regs.gprs[10], regs[10], 8);
hexvalue (ctx->sregs->regs.gprs[11], regs[11], 8);
hexvalue (ctx->sregs->regs.gprs[12], regs[12], 8);
hexvalue (ctx->sregs->regs.gprs[13], regs[13], 8);
hexvalue (ctx->sregs->regs.gprs[14], regs[14], 8);
hexvalue (ctx->sregs->regs.gprs[15], regs[15], 8);
hexvalue (ctx->sregs->regs.psw.mask, regs[16], 8);
hexvalue (ctx->sregs->regs.psw.addr, regs[17], 8);
/* Generate the output. */
ADD_STRING ("Register dump:\n\n GPR0: ");
ADD_MEM (regs[0], 8);
ADD_STRING (" GPR1: ");
ADD_MEM (regs[1], 8);
ADD_STRING (" GPR2: ");
ADD_MEM (regs[2], 8);
ADD_STRING (" GPR3: ");
ADD_MEM (regs[3], 8);
ADD_STRING ("\n GPR4: ");
ADD_MEM (regs[4], 8);
ADD_STRING (" GPR5: ");
ADD_MEM (regs[5], 8);
ADD_STRING (" GPR6: ");
ADD_MEM (regs[6], 8);
ADD_STRING (" GPR7: ");
ADD_MEM (regs[7], 8);
ADD_STRING ("\n GPR8: ");
ADD_MEM (regs[8], 8);
ADD_STRING (" GPR9: ");
ADD_MEM (regs[9], 8);
ADD_STRING (" GPRA: ");
ADD_MEM (regs[10], 8);
ADD_STRING (" GPRB: ");
ADD_MEM (regs[11], 8);
ADD_STRING ("\n GPRC: ");
ADD_MEM (regs[12], 8);
ADD_STRING (" GPRD: ");
ADD_MEM (regs[13], 8);
ADD_STRING (" GPRE: ");
ADD_MEM (regs[14], 8);
ADD_STRING (" GPRF: ");
ADD_MEM (regs[15], 8);
ADD_STRING ("\n\n PSW.MASK: ");
ADD_MEM (regs[16], 8);
ADD_STRING (" PSW.ADDR: ");
ADD_MEM (regs[17], 8);
ADD_STRING (" TRAP: ");
ADD_MEM (regs[18], 4);
ADD_STRING ("\n");
/* Write the stuff out. */
writev (fd, iov, nr);
}
#define REGISTER_DUMP register_dump (fd, ctx)
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