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/* Dump registers.
Copyright (C) 2000-2021 Free Software Foundation, Inc.
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
<https://www.gnu.org/licenses/>. */
#include <unistd.h>
#include <string.h>
#include <_itoa.h>
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';
}
#define REGDUMP_NREGS 32
#define REGDUMP_PER_LINE (80 / (__WORDSIZE / 4 + 4))
static void
register_dump (int fd, ucontext_t *ctx)
{
int i;
char regvalue[__WORDSIZE / 4 + 1];
char str[82 * ((REGDUMP_NREGS + REGDUMP_PER_LINE - 1) / REGDUMP_PER_LINE)];
static const char names[REGDUMP_NREGS][4] = {
"pc", "ra", "sp", "gp", "tp", "t0", "t1", "t2",
"s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5",
"a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7",
"s8", "s9", "sA", "sB", "t3", "t4", "t5", "t6"
};
str[0] = 0;
for (i = 0; i < REGDUMP_NREGS; i++)
{
strcat (str, names[i]);
strcat (str, " ");
hexvalue (ctx->uc_mcontext.__gregs[i], regvalue, __WORDSIZE / 4);
strcat (str, regvalue);
if ((i + 1) % REGDUMP_PER_LINE == 0)
strcat (str, "\n");
}
write (fd, str, strlen (str));
}
#define REGISTER_DUMP register_dump (fd, ctx)
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