* sysdeps/unix/sysv/linux/alpha/register-dump.h: New file. * sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h (SIGCONTEXT): Add _code argument, pass sigcontext by pointer. (SIGCONTEXT_EXTRA_ARGS): Likewise. (GET_PC, GET_FRAME, GET_STACK): Expect ctx as pointer.

2004-10-15  Richard Henderson  <rth@redhat.com>

	* sysdeps/unix/sysv/linux/alpha/register-dump.h: New file.
	* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h (SIGCONTEXT): Add
	_code argument, pass sigcontext by pointer.
	(SIGCONTEXT_EXTRA_ARGS): Likewise.
	(GET_PC, GET_FRAME, GET_STACK): Expect ctx as pointer.

3 files changed, 175 insertions, 6 deletions

diff --git a/ChangeLog b/ChangeLog
index d5facb0836..137306915e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2004-10-15  Richard Henderson  <rth@redhat.com>
+
+	* sysdeps/unix/sysv/linux/alpha/register-dump.h: New file.
+	* sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h (SIGCONTEXT): Add
+	_code argument, pass sigcontext by pointer.
+	(SIGCONTEXT_EXTRA_ARGS): Likewise.
+	(GET_PC, GET_FRAME, GET_STACK): Expect ctx as pointer.
+
 2004-10-14  Richard Henderson  <rth@redhat.com>
 
 	* sysdeps/alpha/dl-machine.h (elf_machine_rela,
diff --git a/sysdeps/unix/sysv/linux/alpha/register-dump.h b/sysdeps/unix/sysv/linux/alpha/register-dump.h
new file mode 100644
index 0000000000..d55899a2c1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/alpha/register-dump.h
@@ -0,0 +1,161 @@
+/* Dump registers.
+   Copyright (C) 2004 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stddef.h>
+#include <sys/uio.h>
+
+/* We will print the register dump in this format:
+
+    V0: XXXXXXXXXXXXXXXX    T0: XXXXXXXXXXXXXXXX    T1: XXXXXXXXXXXXXXXX
+    T2: XXXXXXXXXXXXXXXX    T3: XXXXXXXXXXXXXXXX    T4: XXXXXXXXXXXXXXXX
+    T5: XXXXXXXXXXXXXXXX    T6: XXXXXXXXXXXXXXXX    T7: XXXXXXXXXXXXXXXX
+    S0: XXXXXXXXXXXXXXXX    S1: XXXXXXXXXXXXXXXX    S2: XXXXXXXXXXXXXXXX
+    S3: XXXXXXXXXXXXXXXX    S4: XXXXXXXXXXXXXXXX    S5: XXXXXXXXXXXXXXXX
+    S6: XXXXXXXXXXXXXXXX    A0: XXXXXXXXXXXXXXXX    A1: XXXXXXXXXXXXXXXX
+    A2: XXXXXXXXXXXXXXXX    A3: XXXXXXXXXXXXXXXX    A4: XXXXXXXXXXXXXXXX
+    A5: XXXXXXXXXXXXXXXX    T8: XXXXXXXXXXXXXXXX    T9: XXXXXXXXXXXXXXXX
+   T10: XXXXXXXXXXXXXXXX   T11: XXXXXXXXXXXXXXXX    RA: XXXXXXXXXXXXXXXX
+   T12: XXXXXXXXXXXXXXXX    AT: XXXXXXXXXXXXXXXX    GP: XXXXXXXXXXXXXXXX
+    SP: XXXXXXXXXXXXXXXX    PC: XXXXXXXXXXXXXXXX
+  
+   FP0: XXXXXXXXXXXXXXXX   FP1: XXXXXXXXXXXXXXXX   FP2: XXXXXXXXXXXXXXXX
+   FP3: XXXXXXXXXXXXXXXX   FP4: XXXXXXXXXXXXXXXX   FP5: XXXXXXXXXXXXXXXX
+   FP6: XXXXXXXXXXXXXXXX   FP7: XXXXXXXXXXXXXXXX   FP8: XXXXXXXXXXXXXXXX
+   FP9: XXXXXXXXXXXXXXXX  FP10: XXXXXXXXXXXXXXXX  FP11: XXXXXXXXXXXXXXXX
+  FP12: XXXXXXXXXXXXXXXX  FP13: XXXXXXXXXXXXXXXX  FP14: XXXXXXXXXXXXXXXX
+  FP15: XXXXXXXXXXXXXXXX  FP16: XXXXXXXXXXXXXXXX  FP17: XXXXXXXXXXXXXXXX
+  FP18: XXXXXXXXXXXXXXXX  FP19: XXXXXXXXXXXXXXXX  FP20: XXXXXXXXXXXXXXXX
+  FP21: XXXXXXXXXXXXXXXX  FP22: XXXXXXXXXXXXXXXX  FP23: XXXXXXXXXXXXXXXX
+  FP24: XXXXXXXXXXXXXXXX  FP25: XXXXXXXXXXXXXXXX  FP26: XXXXXXXXXXXXXXXX
+  FP27: XXXXXXXXXXXXXXXX  FP28: XXXXXXXXXXXXXXXX  FP29: XXXXXXXXXXXXXXXX
+  FP30: XXXXXXXXXXXXXXXX  FPCR: XXXXXXXXXXXXXXXX
+  
+   TA0: XXXXXXXXXXXXXXXX   TA1: XXXXXXXXXXXXXXXX   TA2: XXXXXXXXXXXXXXXX
+*/
+
+#define NREGS (32+32+3)
+
+static const char regnames[NREGS][8] = 
+{
+  "    V0: ", "    T0: ", "    T1: ",
+  "    T2: ", "    T3: ", "    T4: ",
+  "    T5: ", "    T6: ", "    T7: ",
+  "    S0: ", "    S1: ", "    S2: ",
+  "    S3: ", "    S4: ", "    S5: ",
+  "    S6: ", "    A0: ", "    A1: ",
+  "    A2: ", "    A3: ", "    A4: ",
+  "    A5: ", "    T8: ", "    T9: ",
+  "   T10: ", "   T11: ", "    RA: ",
+  "   T12: ", "    AT: ", "    GP: ",
+  "    SP: ", "    PC: ",
+
+  "   FP0: ", "   FP1: ", "   FP2: ",
+  "   FP3: ", "   FP4: ", "   FP5: ",
+  "   FP6: ", "   FP7: ", "   FP8: ",
+  "   FP9: ", "  FP10: ", "  FP11: ",
+  "  FP12: ", "  FP13: ", "  FP14: ",
+  "  FP15: ", "  FP16: ", "  FP17: ",
+  "  FP18: ", "  FP19: ", "  FP20: ",
+  "  FP21: ", "  FP22: ", "  FP23: ",
+  "  FP24: ", "  FP25: ", "  FP26: ",
+  "  FP27: ", "  FP28: ", "  FP29: ",
+  "  FP30: ", "  FPCR: ",
+
+  "   TA0: ", "   TA1: ", "   TA2: "
+};
+
+#define O(FIELD, LF)  offsetof(struct sigcontext, FIELD) + LF
+
+static const int offsets[NREGS] = 
+{
+  O(sc_regs[0], 0),  O(sc_regs[1], 0),  O(sc_regs[2], 1),
+  O(sc_regs[3], 0),  O(sc_regs[4], 0),  O(sc_regs[5], 1),
+  O(sc_regs[6], 0),  O(sc_regs[7], 0),  O(sc_regs[8], 1),
+  O(sc_regs[9], 0),  O(sc_regs[10], 0), O(sc_regs[11], 1),
+  O(sc_regs[12], 0), O(sc_regs[13], 0), O(sc_regs[14], 1),
+  O(sc_regs[15], 0), O(sc_regs[16], 0), O(sc_regs[17], 1),
+  O(sc_regs[18], 0), O(sc_regs[19], 0), O(sc_regs[20], 1),
+  O(sc_regs[21], 0), O(sc_regs[22], 0), O(sc_regs[23], 1),
+  O(sc_regs[24], 0), O(sc_regs[25], 0), O(sc_regs[26], 1),
+  O(sc_regs[27], 0), O(sc_regs[28], 0), O(sc_regs[29], 1),
+  O(sc_regs[30], 0), O(sc_pc, 2),
+
+  O(sc_fpregs[0], 0),  O(sc_fpregs[1], 0),  O(sc_fpregs[2], 1),
+  O(sc_fpregs[3], 0),  O(sc_fpregs[4], 0),  O(sc_fpregs[5], 1),
+  O(sc_fpregs[6], 0),  O(sc_fpregs[7], 0),  O(sc_fpregs[8], 1),
+  O(sc_fpregs[9], 0),  O(sc_fpregs[10], 0), O(sc_fpregs[11], 1),
+  O(sc_fpregs[12], 0), O(sc_fpregs[13], 0), O(sc_fpregs[14], 1),
+  O(sc_fpregs[15], 0), O(sc_fpregs[16], 0), O(sc_fpregs[17], 1),
+  O(sc_fpregs[18], 0), O(sc_fpregs[19], 0), O(sc_fpregs[20], 1),
+  O(sc_fpregs[21], 0), O(sc_fpregs[22], 0), O(sc_fpregs[23], 1),
+  O(sc_fpregs[24], 0), O(sc_fpregs[25], 0), O(sc_fpregs[26], 1),
+  O(sc_fpregs[27], 0), O(sc_fpregs[28], 0), O(sc_fpregs[29], 1),
+  O(sc_fpregs[30], 0), O(sc_fpcr, 2),
+
+  O(sc_traparg_a0, 0),  O(sc_traparg_a1, 0),  O(sc_traparg_a2, 1)
+};
+
+#undef O
+
+static const char linefeed[2] = "\n\n";
+
+static void
+register_dump (int fd, struct sigcontext *ctx)
+{
+  char regs[NREGS][16];
+  struct iovec iov[2*NREGS+24];
+  size_t iov_i = 0, i, j;
+  
+#define ADD_MEM(str, len)			\
+  (iov[iov_i].iov_base = (void *)(str),		\
+   iov[iov_i].iov_len = len,			\
+   ++iov_i)
+
+#define ADD_STRING(str) ADD_MEM(str, strlen(str))
+
+  ADD_STRING ("Register dump:\n\n");
+
+  for (i = 0; i < NREGS; ++i)
+    {
+      int this_offset, this_lf;
+      unsigned long val;
+      
+      this_offset = offsets[i];
+      this_lf = this_offset & 7;
+      this_offset &= -8;
+
+      val = *(unsigned long *)((char *)ctx + this_offset);
+
+      for (j = 0; j < 16; ++j)
+	{
+	  unsigned long x = (val >> (64 - (j + 1) * 4)) & 15;
+	  x += x < 10 ? '0' : 'a' - 10;
+	  regs[i][j] = x;
+	}
+
+      ADD_MEM (regnames[i], 8);
+      ADD_MEM (regs[i], 16);
+      if (this_lf)
+	ADD_MEM (linefeed, this_lf);
+    }
+
+  writev (fd, iov, iov_i);
+}
+
+#define REGISTER_DUMP register_dump (fd, ctx)
diff --git a/sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h b/sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h
index eb6f4f0758..16c5dcbc5b 100644
--- a/sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2004 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
@@ -16,10 +16,10 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#define SIGCONTEXT struct sigcontext
-#define SIGCONTEXT_EXTRA_ARGS
-#define GET_PC(ctx)	((void *) (ctx).sc_pc)
-#define GET_FRAME(ctx)	((void *) (ctx).sc_regs[15])
-#define GET_STACK(ctx)	((void *) (ctx).sc_regs[30])
+#define SIGCONTEXT int _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx)	((void *) (ctx)->sc_pc)
+#define GET_FRAME(ctx)	((void *) (ctx)->sc_regs[15])
+#define GET_STACK(ctx)	((void *) (ctx)->sc_regs[30])
 #define CALL_SIGHANDLER(handler, signo, ctx) \
   (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))