Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 255 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/i386/register-dump.h b/REORG.TODO/sysdeps/unix/sysv/linux/i386/register-dump.h
new file mode 100644
index 0000000000..0ca0866d47
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/i386/register-dump.h
@@ -0,0 +1,255 @@
+/* Dump registers.
+   Copyright (C) 1998-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+   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:
+
+ EAX: XXXXXXXX   EBX: XXXXXXXX   ECX: XXXXXXXX   EDX: XXXXXXXX
+ ESI: XXXXXXXX   EDI: XXXXXXXX   EBP: XXXXXXXX   ESP: XXXXXXXX
+
+ EIP: XXXXXXXX   EFLAGS: XXXXXXXX
+
+ CS:  XXXX   DS: XXXX   ES: XXXX   FS: XXXX   GS: XXXX   SS: XXXX
+
+ Trap:  XXXXXXXX   Error: XXXXXXXX   OldMask: XXXXXXXX
+ ESP/SIGNAL: XXXXXXXX   CR2: XXXXXXXX
+
+ FPUCW: XXXXXXXX   FPUSW: XXXXXXXX   TAG: XXXXXXXX
+ IPOFF: XXXXXXXX   CSSEL: XXXX   DATAOFF: XXXXXXXX   DATASEL: XXXX
+
+ 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[21][8];
+  char fpregs[31][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->eax, regs[0], 8);
+  hexvalue (ctx->ebx, regs[1], 8);
+  hexvalue (ctx->ecx, regs[2], 8);
+  hexvalue (ctx->edx, regs[3], 8);
+  hexvalue (ctx->esi, regs[4], 8);
+  hexvalue (ctx->edi, regs[5], 8);
+  hexvalue (ctx->ebp, regs[6], 8);
+  hexvalue (ctx->esp, regs[7], 8);
+  hexvalue (ctx->eip, regs[8], 8);
+  hexvalue (ctx->eflags, regs[9], 8);
+  hexvalue (ctx->cs, regs[10], 4);
+  hexvalue (ctx->ds, regs[11], 4);
+  hexvalue (ctx->es, regs[12], 4);
+  hexvalue (ctx->fs, regs[13], 4);
+  hexvalue (ctx->gs, regs[14], 4);
+  hexvalue (ctx->ss, regs[15], 4);
+  hexvalue (ctx->trapno, regs[16], 8);
+  hexvalue (ctx->err, regs[17], 8);
+  hexvalue (ctx->oldmask, regs[18], 8);
+  hexvalue (ctx->esp_at_signal, regs[19], 8);
+  hexvalue (ctx->cr2, regs[20], 8);
+
+  /* Generate the output.  */
+  ADD_STRING ("Register dump:\n\n EAX: ");
+  ADD_MEM (regs[0], 8);
+  ADD_STRING ("   EBX: ");
+  ADD_MEM (regs[1], 8);
+  ADD_STRING ("   ECX: ");
+  ADD_MEM (regs[2], 8);
+  ADD_STRING ("   EDX: ");
+  ADD_MEM (regs[3], 8);
+  ADD_STRING ("\n ESI: ");
+  ADD_MEM (regs[4], 8);
+  ADD_STRING ("   EDI: ");
+  ADD_MEM (regs[5], 8);
+  ADD_STRING ("   EBP: ");
+  ADD_MEM (regs[6], 8);
+  ADD_STRING ("   ESP: ");
+  ADD_MEM (regs[7], 8);
+  ADD_STRING ("\n\n EIP: ");
+  ADD_MEM (regs[8], 8);
+  ADD_STRING ("   EFLAGS: ");
+  ADD_MEM (regs[9], 8);
+  ADD_STRING ("\n\n CS: ");
+  ADD_MEM (regs[10], 4);
+  ADD_STRING ("   DS: ");
+  ADD_MEM (regs[11], 4);
+  ADD_STRING ("   ES: ");
+  ADD_MEM (regs[12], 4);
+  ADD_STRING ("   FS: ");
+  ADD_MEM (regs[13], 4);
+  ADD_STRING ("   GS: ");
+  ADD_MEM (regs[14], 4);
+  ADD_STRING ("   SS: ");
+  ADD_MEM (regs[15], 4);
+  ADD_STRING ("\n\n Trap: ");
+  ADD_MEM (regs[16], 8);
+  ADD_STRING ("   Error: ");
+  ADD_MEM (regs[17], 8);
+  ADD_STRING ("   OldMask: ");
+  ADD_MEM (regs[18], 8);
+  ADD_STRING ("\n ESP/signal: ");
+  ADD_MEM (regs[19], 8);
+  ADD_STRING ("   CR2: ");
+  ADD_MEM (regs[20], 8);
+
+  if (ctx->fpstate != NULL)
+    {
+
+      /* Generate output for the FPU control/status registers.  */
+      hexvalue (ctx->fpstate->cw, fpregs[0], 8);
+      hexvalue (ctx->fpstate->sw, fpregs[1], 8);
+      hexvalue (ctx->fpstate->tag, fpregs[2], 8);
+      hexvalue (ctx->fpstate->ipoff, fpregs[3], 8);
+      hexvalue (ctx->fpstate->cssel, fpregs[4], 4);
+      hexvalue (ctx->fpstate->dataoff, fpregs[5], 8);
+      hexvalue (ctx->fpstate->datasel, fpregs[6], 4);
+
+      ADD_STRING ("\n\n FPUCW: ");
+      ADD_MEM (fpregs[0], 8);
+      ADD_STRING ("   FPUSW: ");
+      ADD_MEM (fpregs[1], 8);
+      ADD_STRING ("   TAG: ");
+      ADD_MEM (fpregs[2], 8);
+      ADD_STRING ("\n IPOFF: ");
+      ADD_MEM (fpregs[3], 8);
+      ADD_STRING ("   CSSEL: ");
+      ADD_MEM (fpregs[4], 4);
+      ADD_STRING ("   DATAOFF: ");
+      ADD_MEM (fpregs[5], 8);
+      ADD_STRING ("   DATASEL: ");
+      ADD_MEM (fpregs[6], 4);
+
+      /* Now the real FPU registers.  */
+      hexvalue (ctx->fpstate->_st[0].exponent, fpregs[7], 8);
+      hexvalue (ctx->fpstate->_st[0].significand[3] << 16
+		| ctx->fpstate->_st[0].significand[2], fpregs[8], 8);
+      hexvalue (ctx->fpstate->_st[0].significand[1] << 16
+		| ctx->fpstate->_st[0].significand[0], fpregs[9], 8);
+      hexvalue (ctx->fpstate->_st[1].exponent, fpregs[10], 8);
+      hexvalue (ctx->fpstate->_st[1].significand[3] << 16
+		| ctx->fpstate->_st[1].significand[2], fpregs[11], 8);
+      hexvalue (ctx->fpstate->_st[1].significand[1] << 16
+		| ctx->fpstate->_st[1].significand[0], fpregs[12], 8);
+      hexvalue (ctx->fpstate->_st[2].exponent, fpregs[13], 8);
+      hexvalue (ctx->fpstate->_st[2].significand[3] << 16
+		| ctx->fpstate->_st[2].significand[2], fpregs[14], 8);
+      hexvalue (ctx->fpstate->_st[2].significand[1] << 16
+		| ctx->fpstate->_st[2].significand[0], fpregs[15], 8);
+      hexvalue (ctx->fpstate->_st[3].exponent, fpregs[16], 8);
+      hexvalue (ctx->fpstate->_st[3].significand[3] << 16
+		| ctx->fpstate->_st[3].significand[2], fpregs[17], 8);
+      hexvalue (ctx->fpstate->_st[3].significand[1] << 16
+		| ctx->fpstate->_st[3].significand[0], fpregs[18], 8);
+      hexvalue (ctx->fpstate->_st[4].exponent, fpregs[19], 8);
+      hexvalue (ctx->fpstate->_st[4].significand[3] << 16
+		| ctx->fpstate->_st[4].significand[2], fpregs[20], 8);
+      hexvalue (ctx->fpstate->_st[4].significand[1] << 16
+		| ctx->fpstate->_st[4].significand[0], fpregs[21], 8);
+      hexvalue (ctx->fpstate->_st[5].exponent, fpregs[22], 8);
+      hexvalue (ctx->fpstate->_st[5].significand[3] << 16
+		| ctx->fpstate->_st[5].significand[2], fpregs[23], 8);
+      hexvalue (ctx->fpstate->_st[5].significand[1] << 16
+		| ctx->fpstate->_st[5].significand[0], fpregs[24], 8);
+      hexvalue (ctx->fpstate->_st[6].exponent, fpregs[25], 8);
+      hexvalue (ctx->fpstate->_st[6].significand[3] << 16
+		| ctx->fpstate->_st[6].significand[2], fpregs[26], 8);
+      hexvalue (ctx->fpstate->_st[6].significand[1] << 16
+		| ctx->fpstate->_st[6].significand[0], fpregs[27], 8);
+      hexvalue (ctx->fpstate->_st[7].exponent, fpregs[28], 8);
+      hexvalue (ctx->fpstate->_st[7].significand[3] << 16
+		| ctx->fpstate->_st[7].significand[2], fpregs[29], 8);
+      hexvalue (ctx->fpstate->_st[7].significand[1] << 16
+		| ctx->fpstate->_st[7].significand[0], fpregs[30], 8);
+
+      ADD_STRING ("\n\n ST(0) ");
+      ADD_MEM (fpregs[7], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[8], 8);
+      ADD_MEM (fpregs[9], 8);
+      ADD_STRING ("   ST(1) ");
+      ADD_MEM (fpregs[10], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[11], 8);
+      ADD_MEM (fpregs[12], 8);
+      ADD_STRING ("\n ST(2) ");
+      ADD_MEM (fpregs[13], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[14], 8);
+      ADD_MEM (fpregs[15], 8);
+      ADD_STRING ("   ST(3) ");
+      ADD_MEM (fpregs[16], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[17], 8);
+      ADD_MEM (fpregs[18], 8);
+      ADD_STRING ("\n ST(4) ");
+      ADD_MEM (fpregs[19], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[20], 8);
+      ADD_MEM (fpregs[21], 8);
+      ADD_STRING ("   ST(5) ");
+      ADD_MEM (fpregs[22], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[23], 8);
+      ADD_MEM (fpregs[24], 8);
+      ADD_STRING ("\n ST(6) ");
+      ADD_MEM (fpregs[25], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[26], 8);
+      ADD_MEM (fpregs[27], 8);
+      ADD_STRING ("   ST(7) ");
+      ADD_MEM (fpregs[28], 4);
+      ADD_STRING (" ");
+      ADD_MEM (fpregs[29], 8);
+      ADD_MEM (fpregs[30], 8);
+    }
+
+  ADD_STRING ("\n");
+
+  /* Write the stuff out.  */
+  writev (fd, iov, nr);
+}
+
+
+#define REGISTER_DUMP register_dump (fd, &ctx)