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glibc/sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

274 lines
8.4 KiB
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/* Dump registers.
Copyright (C) 1999-2022 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 <sys/uio.h>
#include <_itoa.h>
/* We will print the register dump in this format:
TSTATE: XXXXXXXXXXXXXXXX TPC: XXXXXXXXXXXXXXXX TNPC: XXXXXXXXXXXXXXXX
Y: XXXXXXXX
g0: 0000000000000000 g1: XXXXXXXXXXXXXXXX g2: XXXXXXXXXXXXXXXX
g3: XXXXXXXXXXXXXXXX g4: XXXXXXXXXXXXXXXX g5: XXXXXXXXXXXXXXXX
g6: XXXXXXXXXXXXXXXX g7: XXXXXXXXXXXXXXXX
o0: XXXXXXXXXXXXXXXX o1: XXXXXXXXXXXXXXXX o2: XXXXXXXXXXXXXXXX
o3: XXXXXXXXXXXXXXXX o4: XXXXXXXXXXXXXXXX o5: XXXXXXXXXXXXXXXX
sp: XXXXXXXXXXXXXXXX o7: XXXXXXXXXXXXXXXX
l0: XXXXXXXXXXXXXXXX l1: XXXXXXXXXXXXXXXX l2: XXXXXXXXXXXXXXXX
l3: XXXXXXXXXXXXXXXX l4: XXXXXXXXXXXXXXXX l5: XXXXXXXXXXXXXXXX
l6: XXXXXXXXXXXXXXXX l7: XXXXXXXXXXXXXXXX
i0: XXXXXXXXXXXXXXXX i1: XXXXXXXXXXXXXXXX i2: XXXXXXXXXXXXXXXX
i3: XXXXXXXXXXXXXXXX i4: XXXXXXXXXXXXXXXX i5: XXXXXXXXXXXXXXXX
fp: XXXXXXXXXXXXXXXX i7: XXXXXXXXXXXXXXXX
Mask: XXXXXXXXXXXXXXXX XFSR: XXXXXXXXXXXXXXXX GSR: XX FPRS: X
f0: XXXXXXXXXXXXXXXX f2: XXXXXXXXXXXXXXXX f4: XXXXXXXXXXXXXXXX
f6: XXXXXXXXXXXXXXXX f8: XXXXXXXXXXXXXXXX f10: XXXXXXXXXXXXXXXX
f12: XXXXXXXXXXXXXXXX f14: XXXXXXXXXXXXXXXX f16: XXXXXXXXXXXXXXXX
f18: XXXXXXXXXXXXXXXX f20: XXXXXXXXXXXXXXXX f22: XXXXXXXXXXXXXXXX
f24: XXXXXXXXXXXXXXXX f26: XXXXXXXXXXXXXXXX f28: XXXXXXXXXXXXXXXX
f30: XXXXXXXXXXXXXXXX f32: XXXXXXXXXXXXXXXX f34: XXXXXXXXXXXXXXXX
f36: XXXXXXXXXXXXXXXX f38: XXXXXXXXXXXXXXXX f40: XXXXXXXXXXXXXXXX
f42: XXXXXXXXXXXXXXXX f44: XXXXXXXXXXXXXXXX f46: XXXXXXXXXXXXXXXX
f48: XXXXXXXXXXXXXXXX f50: XXXXXXXXXXXXXXXX f52: XXXXXXXXXXXXXXXX
f54: XXXXXXXXXXXXXXXX f56: XXXXXXXXXXXXXXXX f58: XXXXXXXXXXXXXXXX
f60: XXXXXXXXXXXXXXXX f62: 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';
}
/* The sparc64 kernel signal frame for SA_SIGINFO is defined as:
struct rt_signal_frame
{
struct sparc_stackf ss;
siginfo_t info;
struct pt_regs regs; <- void *ctx
__siginfo_fpu_t *fpu_save;
stack_t stack;
sigset_t mask;
__siginfo_rwin_t *rwin_save;
};
Unlike other architectures, sparc32 passes pt_regs32 REGS pointers as
the third argument to a sa_sigaction handler with SA_SIGINFO enabled. */
static void
register_dump (int fd, void *ctx)
{
char regs[36][16];
char fregs[68][8];
struct iovec iov[150];
size_t nr = 0;
int i;
struct pt_regs *ptregs = (struct pt_regs*) ((siginfo_t *)ctx + 1);
unsigned long *r = (unsigned long *) (ptregs->u_regs[14] + STACK_BIAS);
__siginfo_fpu_t *f = (__siginfo_fpu_t *)(ptregs + 1);
struct kernel_sigset_t {
unsigned long sig[1];
} *mask = (struct kernel_sigset_t *)((stack_t *)(f + 1) + 1);
#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 (ptregs->tstate, regs[0], 16);
hexvalue (ptregs->tpc, regs[1], 16);
hexvalue (ptregs->tnpc, regs[2], 16);
hexvalue (ptregs->y, regs[3], 8);
for (i = 1; i <= 15; i++)
hexvalue (ptregs->u_regs[i], regs[3+i], 16);
for (i = 0; i <= 15; i++)
hexvalue (r[i], regs[19+i], 16);
hexvalue (mask->sig[0], regs[35], 16);
/* Generate the output. */
ADD_STRING ("Register dump:\n\n TSTATE: ");
ADD_MEM (regs[0], 16);
ADD_STRING (" TPC: ");
ADD_MEM (regs[1], 16);
ADD_STRING (" TNPC: ");
ADD_MEM (regs[2], 16);
ADD_STRING ("\n Y: ");
ADD_MEM (regs[3], 8);
ADD_STRING ("\n g0: 0000000000000000 g1: ");
ADD_MEM (regs[4], 16);
ADD_STRING (" g2: ");
ADD_MEM (regs[5], 16);
ADD_STRING ("\n g3: ");
ADD_MEM (regs[6], 16);
ADD_STRING (" g4: ");
ADD_MEM (regs[7], 16);
ADD_STRING (" g5: ");
ADD_MEM (regs[8], 16);
ADD_STRING ("\n g6: ");
ADD_MEM (regs[9], 16);
ADD_STRING (" g7: ");
ADD_MEM (regs[10], 16);
ADD_STRING ("\n o0: ");
ADD_MEM (regs[11], 16);
ADD_STRING (" o1: ");
ADD_MEM (regs[12], 16);
ADD_STRING (" o2: ");
ADD_MEM (regs[13], 16);
ADD_STRING ("\n o3: ");
ADD_MEM (regs[14], 16);
ADD_STRING (" o4: ");
ADD_MEM (regs[15], 16);
ADD_STRING (" o5: ");
ADD_MEM (regs[16], 16);
ADD_STRING ("\n sp: ");
ADD_MEM (regs[17], 16);
ADD_STRING (" o7: ");
ADD_MEM (regs[18], 16);
ADD_STRING ("\n l0: ");
ADD_MEM (regs[19], 16);
ADD_STRING (" l1: ");
ADD_MEM (regs[20], 16);
ADD_STRING (" l2: ");
ADD_MEM (regs[21], 16);
ADD_STRING ("\n l3: ");
ADD_MEM (regs[22], 16);
ADD_STRING (" l4: ");
ADD_MEM (regs[23], 16);
ADD_STRING (" l5: ");
ADD_MEM (regs[24], 16);
ADD_STRING ("\n l6: ");
ADD_MEM (regs[25], 16);
ADD_STRING (" l7: ");
ADD_MEM (regs[26], 16);
ADD_STRING ("\n i0: ");
ADD_MEM (regs[27], 16);
ADD_STRING (" i1: ");
ADD_MEM (regs[28], 16);
ADD_STRING (" i2: ");
ADD_MEM (regs[29], 16);
ADD_STRING ("\n i3: ");
ADD_MEM (regs[30], 16);
ADD_STRING (" i4: ");
ADD_MEM (regs[31], 16);
ADD_STRING (" i5: ");
ADD_MEM (regs[32], 16);
ADD_STRING ("\n fp: ");
ADD_MEM (regs[33], 16);
ADD_STRING (" i7: ");
ADD_MEM (regs[34], 16);
ADD_STRING ("\n\n Mask: ");
ADD_MEM (regs[35], 16);
if (f != NULL)
{
for (i = 0; i < 64; i++)
hexvalue (f->si_float_regs[i], fregs[i], 8);
hexvalue (f->si_fsr, fregs[64], 16);
hexvalue (f->si_gsr, fregs[66], 2);
hexvalue (f->si_fprs, fregs[67], 1);
ADD_STRING (" XFSR: ");
ADD_MEM (fregs[64], 16);
ADD_STRING (" GSR: ");
ADD_MEM (fregs[66], 2);
ADD_STRING (" FPRS: ");
ADD_MEM (fregs[67], 1);
ADD_STRING ("\n f0: ");
ADD_MEM (fregs[0], 16);
ADD_STRING (" f2: ");
ADD_MEM (fregs[2], 16);
ADD_STRING (" f4: ");
ADD_MEM (fregs[4], 16);
ADD_STRING ("\n f6: ");
ADD_MEM (fregs[6], 16);
ADD_STRING (" f8: ");
ADD_MEM (fregs[8], 16);
ADD_STRING (" f10: ");
ADD_MEM (fregs[10], 16);
ADD_STRING ("\n f12: ");
ADD_MEM (fregs[12], 16);
ADD_STRING (" f14: ");
ADD_MEM (fregs[14], 16);
ADD_STRING (" f16: ");
ADD_MEM (fregs[16], 16);
ADD_STRING ("\n f18: ");
ADD_MEM (fregs[18], 16);
ADD_STRING (" f20: ");
ADD_MEM (fregs[20], 16);
ADD_STRING (" f22: ");
ADD_MEM (fregs[22], 16);
ADD_STRING ("\n f24: ");
ADD_MEM (fregs[24], 16);
ADD_STRING (" f26: ");
ADD_MEM (fregs[26], 16);
ADD_STRING (" f28: ");
ADD_MEM (fregs[28], 16);
ADD_STRING ("\n f30: ");
ADD_MEM (fregs[30], 16);
ADD_STRING (" f32: ");
ADD_MEM (fregs[32], 16);
ADD_STRING (" f34: ");
ADD_MEM (fregs[34], 16);
ADD_STRING ("\n f36: ");
ADD_MEM (fregs[36], 16);
ADD_STRING (" f38: ");
ADD_MEM (fregs[38], 16);
ADD_STRING (" f40: ");
ADD_MEM (fregs[40], 16);
ADD_STRING ("\n f42: ");
ADD_MEM (fregs[42], 16);
ADD_STRING (" f44: ");
ADD_MEM (fregs[44], 16);
ADD_STRING (" f46: ");
ADD_MEM (fregs[46], 16);
ADD_STRING ("\n f48: ");
ADD_MEM (fregs[48], 16);
ADD_STRING (" f50: ");
ADD_MEM (fregs[50], 16);
ADD_STRING (" f52: ");
ADD_MEM (fregs[52], 16);
ADD_STRING ("\n f54: ");
ADD_MEM (fregs[54], 16);
ADD_STRING (" f56: ");
ADD_MEM (fregs[56], 16);
ADD_STRING (" f58: ");
ADD_MEM (fregs[58], 16);
ADD_STRING ("\n f60: ");
ADD_MEM (fregs[60], 16);
ADD_STRING (" f62: ");
ADD_MEM (fregs[62], 16);
}
ADD_STRING ("\n");
/* Write the stuff out. */
writev (fd, iov, nr);
}
#define REGISTER_DUMP register_dump (fd, ctx)
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