obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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1 files changed, 422 insertions, 0 deletions

diff --git a/libquadmath/printf/quadmath-printf.c b/libquadmath/printf/quadmath-printf.c
new file mode 100644
index 000000000..b70f432cc
--- /dev/null
+++ b/libquadmath/printf/quadmath-printf.c
@@ -0,0 +1,422 @@
+/* GCC Quad-Precision Math Library
+   Copyright (C) 2011 Free Software Foundation, Inc.
+   Written by Jakub Jelinek  <jakub@redhat.com>
+
+This file is part of the libquadmath library.
+Libquadmath 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.
+
+Libquadmath 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 libquadmath; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+#include <stdarg.h>
+#include <string.h>
+#include <stdio.h>
+#include "quadmath-printf.h"
+
+/* Read a simple integer from a string and update the string pointer.
+   It is assumed that the first character is a digit.  */
+static unsigned int
+read_int (const char **pstr)
+{
+  unsigned int retval = (unsigned char) **pstr - '0';
+
+  while (isdigit ((unsigned char) *++(*pstr)))
+    {
+      retval *= 10;
+      retval += (unsigned char) **pstr - '0';
+    }
+
+  return retval;
+}
+
+#define PADSIZE 16
+static char const blanks[PADSIZE] =
+{' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
+static char const zeroes[PADSIZE] =
+{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
+static wchar_t const wblanks[PADSIZE] =
+{
+  L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
+  L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ')
+};
+static wchar_t const wzeroes[PADSIZE] =
+{
+  L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
+  L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0')
+};
+
+attribute_hidden size_t
+__quadmath_do_pad (struct __quadmath_printf_file *fp, int wide, int c,
+		   size_t n)
+{
+  ssize_t i;
+  char padbuf[PADSIZE];
+  wchar_t wpadbuf[PADSIZE];
+  const char *padstr;
+  size_t w, written = 0;
+  if (wide)
+    {
+      if (c == ' ')
+	padstr = (const char *) wblanks;
+      else if (c == '0')
+	padstr = (const char *) wzeroes;
+      else
+	{
+	  padstr = (const char *) wpadbuf;
+	  for (i = 0; i < PADSIZE; i++)
+	    wpadbuf[i] = c;
+	}
+    }
+  else
+    {
+      if (c == ' ')
+	padstr = blanks;
+      else if (c == '0')
+	padstr = zeroes;
+      else
+	{
+	  padstr = (const char *) padbuf;
+	  for (i = 0; i < PADSIZE; i++)
+	    padbuf[i] = c;
+	}
+    }
+  for (i = n; i >= PADSIZE; i -= PADSIZE)
+    {
+      w = PUT (fp, (char *) padstr, PADSIZE);
+      written += w;
+      if (w != PADSIZE)
+	return written;
+    }
+  if (i > 0)
+    {
+      w = PUT (fp, (char *) padstr, i);
+      written += w;
+    }
+  return written;
+}
+
+/* This is a stripped down version of snprintf, which just handles
+   a single %eEfFgGaA format entry with Q modifier.  % has to be
+   the first character of the format string, no $ can be used.  */
+int
+quadmath_snprintf (char *str, size_t size, const char *format, ...)
+{
+  struct printf_info info;
+  va_list ap;
+  __float128 fpnum, *fpnum_addr = &fpnum, **fpnum_addr2 = &fpnum_addr;
+  struct __quadmath_printf_file qfp;
+
+  if (*format++ != '%')
+    return -1;
+
+  /* Clear information structure.  */
+  memset (&info, '\0', sizeof info);
+  /* info.alt = 0;
+  info.space = 0;
+  info.left = 0;
+  info.showsign = 0;
+  info.group = 0;
+  info.i18n = 0;
+  info.extra = 0; */
+  info.pad = ' ';
+  /* info.wide = 0; */
+
+  /* Check for spec modifiers.  */
+  do
+    {
+      switch (*format)
+	{
+	case ' ':
+	  /* Output a space in place of a sign, when there is no sign.  */
+	  info.space = 1;
+	  continue;
+	case '+':
+	  /* Always output + or - for numbers.  */
+	  info.showsign = 1;
+	  continue;
+	case '-':
+	  /* Left-justify things.  */
+	  info.left = 1;
+	  continue;
+	case '#':
+	  /* Use the "alternate form":
+	     Hex has 0x or 0X, FP always has a decimal point.  */
+	  info.alt = 1;
+	  continue;
+	case '0':
+	  /* Pad with 0s.  */
+	  info.pad = '0';
+	  continue;
+	case '\'':
+	  /* Show grouping in numbers if the locale information
+	     indicates any.  */
+	  info.group = 1;
+	  continue;
+	case 'I':
+	  /* Use the internationalized form of the output.  Currently
+	     means to use the `outdigits' of the current locale.  */
+	  info.i18n = 1;
+	  continue;
+	default:
+	  break;
+	}
+      break;
+    }
+  while (*++format);
+
+  if (info.left)
+    info.pad = ' ';
+
+  va_start (ap, format);
+
+  /* Get the field width.  */
+  /* info.width = 0; */
+  if (*format == '*')
+    {
+      /* The field width is given in an argument.
+	 A negative field width indicates left justification.  */
+      ++format;
+      info.width = va_arg (ap, int);
+    }
+  else if (isdigit (*format))
+    /* Constant width specification.  */
+    info.width = read_int (&format);
+
+  /* Get the precision.  */
+  /* -1 means none given; 0 means explicit 0.  */
+  info.prec = -1;
+  if (*format == '.')
+    {
+      ++format;
+      if (*format == '*')
+	{
+	  /* The precision is given in an argument.  */
+	  ++format;
+
+	  info.prec = va_arg (ap, int);
+	}
+      else if (isdigit (*format))
+	info.prec = read_int (&format);
+      else
+	/* "%.?" is treated like "%.0?".  */
+	info.prec = 0;
+    }
+
+  /* Check for type modifiers.  */
+  /* info.is_long_double = 0;
+  info.is_short = 0;
+  info.is_long = 0;
+  info.is_char = 0;
+  info.user = 0; */
+
+  /* We require Q modifier.  */
+  if (*format++ != 'Q')
+    {
+      va_end (ap);
+      return -1;
+    }
+
+  /* Get the format specification.  */
+  info.spec = (wchar_t) *format++;
+  if (info.spec == L_('\0') || *format != '\0')
+    {
+      va_end (ap);
+      return -1;
+    }
+
+  switch (info.spec)
+    {
+    case L_('e'):
+    case L_('E'):
+    case L_('f'):
+    case L_('F'):
+    case L_('g'):
+    case L_('G'):
+    case L_('a'):
+    case L_('A'):
+      break;
+    default:
+      va_end (ap);
+      return -1;
+    }
+
+  fpnum = va_arg (ap, __float128);
+  va_end (ap);
+
+  qfp.fp = NULL;
+  qfp.str = str;
+  qfp.size = size ? size - 1 : 0;
+  qfp.len = 0;
+  qfp.file_p = 0;
+
+  if (info.spec == L_('a') || info.spec == L_('A'))
+    __quadmath_printf_fphex (&qfp, &info, (const void *const *)&fpnum_addr2);
+  else
+    __quadmath_printf_fp (&qfp, &info, (const void *const *)&fpnum_addr2);
+
+  if (size)
+    *qfp.str = '\0';
+
+  return qfp.len;
+}
+
+#ifdef HAVE_PRINTF_HOOKS
+static int pa_flt128;
+int mod_Q attribute_hidden;
+
+static void
+flt128_va (void *mem, va_list *ap)
+{ 
+  __float128 d = va_arg (*ap, __float128);
+  memcpy (mem, &d, sizeof (d));
+}
+
+static int
+flt128_ais (const struct printf_info *info, size_t n __attribute__ ((unused)),
+	    int *argtype, int *size)
+{
+  if (info->user & mod_Q)
+    {
+      argtype[0] = pa_flt128;
+      size[0] = sizeof (__float128);
+      return 1;
+    }
+#if __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 13)
+  /* Workaround bug in glibc printf hook handling.  */
+  size[0] = -1;
+  switch (info->spec)
+    {
+    case L_('i'):
+    case L_('d'):
+    case L_('u'):
+    case L_('o'):
+    case L_('X'):
+    case L_('x'):
+#if __LONG_MAX__ != __LONG_LONG_MAX__
+      if (info->is_long_double)
+	argtype[0] = PA_INT|PA_FLAG_LONG_LONG;
+      else
+#endif
+      if (info->is_long)
+	argtype[0] = PA_INT|PA_FLAG_LONG;
+      else if (info->is_short)
+	argtype[0] = PA_INT|PA_FLAG_SHORT;
+      else if (info->is_char)
+	argtype[0] = PA_CHAR;
+      else
+	argtype[0] = PA_INT;
+      return 1;
+    case L_('e'):
+    case L_('E'):
+    case L_('f'):
+    case L_('F'):
+    case L_('g'):
+    case L_('G'):
+    case L_('a'):
+    case L_('A'):
+      if (info->is_long_double)
+	argtype[0] = PA_DOUBLE|PA_FLAG_LONG_DOUBLE;
+      else
+	argtype[0] = PA_DOUBLE;
+      return 1;
+    case L_('c'):
+      argtype[0] = PA_CHAR;
+      return 1;
+    case L_('C'):
+      argtype[0] = PA_WCHAR;
+      return 1;
+    case L_('s'):
+      argtype[0] = PA_STRING;
+      return 1;
+    case L_('S'):
+      argtype[0] = PA_WSTRING;
+      return 1;
+    case L_('p'):
+      argtype[0] = PA_POINTER;
+      return 1;
+    case L_('n'):
+      argtype[0] = PA_INT|PA_FLAG_PTR;
+      return 1;
+
+    case L_('m'):
+    default:
+      /* An unknown spec will consume no args.  */
+      return 0;
+    }
+#endif
+  return -1;
+}
+
+static int
+flt128_printf_fp (FILE *fp, const struct printf_info *info,
+		  const void *const *args)
+{
+  struct __quadmath_printf_file qpf
+    = { .fp = fp, .str = NULL, .size = 0, .len = 0, .file_p = 1 };
+
+  if ((info->user & mod_Q) == 0)
+    return -2;
+
+  return __quadmath_printf_fp (&qpf, info, args);
+}
+
+static int
+flt128_printf_fphex (FILE *fp, const struct printf_info *info,
+		     const void *const *args)
+{
+  struct __quadmath_printf_file qpf
+    = { .fp = fp, .str = NULL, .size = 0, .len = 0, .file_p = 1 };
+
+  if ((info->user & mod_Q) == 0)
+    return -2;
+
+  return __quadmath_printf_fphex (&qpf, info, args);
+}
+
+__attribute__((constructor)) static void
+register_printf_flt128 (void)
+{
+  pa_flt128 = register_printf_type (flt128_va);
+  if (pa_flt128 == -1)
+    return;
+  mod_Q = register_printf_modifier (L_("Q"));
+  if (mod_Q == -1)
+    return;
+  register_printf_specifier ('f', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('F', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('e', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('E', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('g', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('G', flt128_printf_fp, flt128_ais);
+  register_printf_specifier ('a', flt128_printf_fphex, flt128_ais);
+  register_printf_specifier ('A', flt128_printf_fphex, flt128_ais);
+}
+
+__attribute__((destructor)) static void
+unregister_printf_flt128 (void)
+{
+  /* No way to unregister printf type and modifier currently,
+     and only one printf specifier can be registered right now.  */
+  if (pa_flt128 == -1 || mod_Q == -1)
+    return;
+  register_printf_specifier ('f', NULL, NULL);
+  register_printf_specifier ('F', NULL, NULL);
+  register_printf_specifier ('e', NULL, NULL);
+  register_printf_specifier ('E', NULL, NULL);
+  register_printf_specifier ('g', NULL, NULL);
+  register_printf_specifier ('G', NULL, NULL);
+  register_printf_specifier ('a', NULL, NULL);
+  register_printf_specifier ('A', NULL, NULL);
+}
+#endif