Register content dump function.

1 files changed, 132 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/arm/register-dump.h b/sysdeps/unix/sysv/linux/arm/register-dump.h
new file mode 100644
index 0000000000..1b948ab5ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arm/register-dump.h
@@ -0,0 +1,132 @@
+/* Dump registers.
+   Copyright (C) 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sys/uio.h>
+#include <stdio-common/_itoa.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
+
+ */
+
+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[20][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->arm_r0, regs[0], 8);
+  hexvalue (ctx->arm_r1, regs[1], 8);
+  hexvalue (ctx->arm_r2, regs[2], 8);
+  hexvalue (ctx->arm_r3, regs[3], 8);
+  hexvalue (ctx->arm_r4, regs[4], 8);
+  hexvalue (ctx->arm_r5, regs[5], 8);
+  hexvalue (ctx->arm_r6, regs[6], 8);
+  hexvalue (ctx->arm_r7, regs[7], 8);
+  hexvalue (ctx->arm_r8, regs[8], 8);
+  hexvalue (ctx->arm_r9, regs[9], 8);
+  hexvalue (ctx->arm_r10, regs[10], 4);
+  hexvalue (ctx->arm_fp, regs[11], 4);
+  hexvalue (ctx->arm_ip, regs[12], 4);
+  hexvalue (ctx->arm_sp, regs[13], 4);
+  hexvalue (ctx->arm_lr, regs[14], 4);
+  hexvalue (ctx->arm_pc, regs[15], 4);
+  hexvalue (ctx->arm_cpsr, regs[16], 8);
+  hexvalue (ctx->trap_no, regs[17], 8);
+  hexvalue (ctx->error_code, regs[18], 8);
+  hexvalue (ctx->old_mask, regs[19], 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");
+
+  /* Write the stuff out.  */
+  writev (fd, iov, nr);
+}
+
+
+#define REGISTER_DUMP register_dump (fd, &ctx)