Gcc 3.4.2 20040728.

1 files changed, 548 insertions, 0 deletions

diff --git a/contrib/gcc/pretty-print.c b/contrib/gcc/pretty-print.c
new file mode 100644
index 0000000..993fde7
--- /dev/null
+++ b/contrib/gcc/pretty-print.c
@@ -0,0 +1,548 @@
+/* Various declarations for language-independent pretty-print subroutines.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   Contributed by Gabriel Dos Reis <gdr@integrable-solutions.net>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+GCC 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+#include "config.h"
+#undef FLOAT /* This is for hpux. They should change hpux.  */
+#undef FFS  /* Some systems define this in param.h.  */
+#include "system.h"
+#include "coretypes.h"
+#include "pretty-print.h"
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free  free
+
+/* A pointer to the formatted diagnostic message.  */
+#define pp_formatted_text_data(PP) \
+   ((const char *) obstack_base (&pp_base (PP)->buffer->obstack))
+
+/* Format an integer given by va_arg (ARG, type-specifier T) where
+   type-specifier is a precision modifier as indicated by PREC.  F is
+   a string used to construct the appropriate format-specifier.  */
+#define pp_integer_with_precision(PP, ARG, PREC, T, F)       \
+  do                                                         \
+    switch (PREC)                                            \
+      {                                                      \
+      case 0:                                                \
+        pp_scalar (PP, "%" F, va_arg (ARG, T));              \
+        break;                                               \
+                                                             \
+      case 1:                                                \
+        pp_scalar (PP, "%l" F, va_arg (ARG, long T));        \
+        break;                                               \
+                                                             \
+      case 2:                                                \
+        pp_scalar (PP, "%ll" F, va_arg (ARG, long long T));  \
+        break;                                               \
+                                                             \
+      default:                                               \
+        break;                                               \
+      }                                                      \
+  while (0)
+
+
+/* Subroutine of pp_set_maximum_length.  Set up PRETTY-PRINTER's
+   internal maximum characters per line.  */
+static void
+pp_set_real_maximum_length (pretty_printer *pp)
+{
+  /* If we're told not to wrap lines then do the obvious thing.  In case
+     we'll emit prefix only once per message, it is appropriate
+     not to increase unnecessarily the line-length cut-off.  */
+  if (!pp_is_wrapping_line (pp)
+      || pp_prefixing_rule (pp) == DIAGNOSTICS_SHOW_PREFIX_ONCE
+      || pp_prefixing_rule (pp) == DIAGNOSTICS_SHOW_PREFIX_NEVER)
+    pp->maximum_length = pp_line_cutoff (pp);
+  else
+    {
+      int prefix_length = pp->prefix ? strlen (pp->prefix) : 0;
+      /* If the prefix is ridiculously too long, output at least
+         32 characters.  */
+      if (pp_line_cutoff (pp) - prefix_length < 32)
+	pp->maximum_length = pp_line_cutoff (pp) + 32;
+      else
+	pp->maximum_length = pp_line_cutoff (pp);
+    }
+}
+
+/* Clear PRETTY-PRINTER's output state.  */
+static inline void
+pp_clear_state (pretty_printer *pp)
+{
+  pp->emitted_prefix = false;
+  pp_indentation (pp) = 0;
+}
+
+/* Flush the formatted text of PRETTY-PRINTER onto the attached stream.  */
+static inline void
+pp_write_text_to_stream (pretty_printer *pp)
+{
+  const char *text = pp_formatted_text (pp);
+  fputs (text, pp->buffer->stream);
+  pp_clear_output_area (pp);
+}
+
+/* Wrap a text delimited by START and END into PRETTY-PRINTER.  */
+static void
+pp_wrap_text (pretty_printer *pp, const char *start, const char *end)
+{
+  bool wrapping_line = pp_is_wrapping_line (pp);
+
+  while (start != end)
+    {
+      /* Dump anything bordered by whitespaces.  */
+      {
+	const char *p = start;
+	while (p != end && !ISBLANK (*p) && *p != '\n')
+	  ++p;
+	if (wrapping_line
+            && p - start >= pp_remaining_character_count_for_line (pp))
+	  pp_newline (pp);
+	pp_append_text (pp, start, p);
+	start = p;
+      }
+
+      if (start != end && ISBLANK (*start))
+	{
+	  pp_space (pp);
+	  ++start;
+	}
+      if (start != end && *start == '\n')
+	{
+	  pp_newline (pp);
+	  ++start;
+	}
+    }
+}
+
+/* Same as pp_wrap_text but wrap text only when in line-wrapping mode.  */
+static inline void
+pp_maybe_wrap_text (pretty_printer *pp, const char *start, const char *end)
+{
+  if (pp_is_wrapping_line (pp))
+    pp_wrap_text (pp, start, end);
+  else
+    pp_append_text (pp, start, end);
+}
+
+/* Append to the output area of PRETTY-PRINTER a string specified by its
+   STARTing character and LENGTH.  */
+static inline void
+pp_append_r (pretty_printer *pp, const char *start, int length)
+{
+  obstack_grow (&pp->buffer->obstack, start, length);
+  pp->buffer->line_length += length;
+}
+
+/* Insert enough spaces into the output area of PRETTY-PRINTER to bring
+   the column position to the current indentation level, assuming that a
+   newline has just been written to the buffer.  */
+void
+pp_base_indent (pretty_printer *pp)
+{
+  int n = pp_indentation (pp);
+  int i;
+
+  for (i = 0; i < n; ++i)
+    pp_space (pp);
+}
+
+/* Format a message pointed to by TEXT.  The following format specifiers are
+   recognized as being client independent:
+   %d, %i: (signed) integer in base ten.
+   %u: unsigned integer in base ten.
+   %o: unsigned integer in base eight.
+   %x: unsigned integer in base sixteen.
+   %ld, %li, %lo, %lu, %lx: long versions of the above.
+   %lld, %lli, %llo, %llu, %llx: long long versions.
+   %wd, %wi, %wo, %wu, %wx: HOST_WIDE_INT versions.
+   %c: character.
+   %s: string.
+   %p: pointer.
+   %m: strerror(text->err_no) - does not consume a value from args_ptr.
+   %%: `%'.
+   %*.s: a substring the length of which is specified by an integer.
+   %H: location_t.  */
+void
+pp_base_format_text (pretty_printer *pp, text_info *text)
+{
+  for (; *text->format_spec; ++text->format_spec)
+    {
+      int precision = 0;
+      bool wide = false;
+
+      /* Ignore text.  */
+      {
+	const char *p = text->format_spec;
+	while (*p && *p != '%')
+	  ++p;
+	pp_wrap_text (pp, text->format_spec, p);
+        text->format_spec = p;
+      }
+
+      if (*text->format_spec == '\0')
+	break;
+
+      /* We got a '%'.  Parse precision modifiers, if any.  */
+      switch (*++text->format_spec)
+        {
+        case 'w':
+          wide = true;
+          ++text->format_spec;
+          break;
+
+        case 'l':
+          do
+            ++precision;
+          while (*++text->format_spec == 'l');
+          break;
+
+        default:
+          break;
+        }
+      /* We don't support precision beyond that of "long long".  */
+      if (precision > 2)
+        abort();
+
+      switch (*text->format_spec)
+	{
+	case 'c':
+	  pp_character (pp, va_arg (*text->args_ptr, int));
+	  break;
+
+	case 'd':
+	case 'i':
+          if (wide)
+            pp_wide_integer (pp, va_arg (*text->args_ptr, HOST_WIDE_INT));
+          else
+            pp_integer_with_precision
+              (pp, *text->args_ptr, precision, int, "d");
+	  break;
+
+	case 'o':
+          if (wide)
+            pp_scalar (pp, "%" HOST_WIDE_INT_PRINT "o",
+                       va_arg (*text->args_ptr, unsigned HOST_WIDE_INT));
+          else
+            pp_integer_with_precision
+              (pp, *text->args_ptr, precision, unsigned, "u");
+	  break;
+
+	case 's':
+	  pp_string (pp, va_arg (*text->args_ptr, const char *));
+	  break;
+
+        case 'p':
+          pp_pointer (pp, va_arg (*text->args_ptr, void *));
+          break;
+
+	case 'u':
+          if (wide)
+            pp_scalar (pp, HOST_WIDE_INT_PRINT_UNSIGNED,
+                       va_arg (*text->args_ptr, unsigned HOST_WIDE_INT));
+          else
+            pp_integer_with_precision
+              (pp, *text->args_ptr, precision, unsigned, "u");
+	  break;
+
+	case 'x':
+          if (wide)
+            pp_scalar (pp, HOST_WIDE_INT_PRINT_HEX,
+                       va_arg (*text->args_ptr, unsigned HOST_WIDE_INT));
+          else
+            pp_integer_with_precision
+              (pp, *text->args_ptr, precision, unsigned, "x");
+	  break;
+
+	case 'm':
+	  pp_string (pp, xstrerror (text->err_no));
+	  break;
+
+	case '%':
+	  pp_character (pp, '%');
+	  break;
+
+        case 'H':
+          {
+            const location_t *locus = va_arg (*text->args_ptr, location_t *);
+            pp_string (pp, "file '");
+            pp_string (pp, locus->file);
+            pp_string (pp, "', line ");
+            pp_decimal_int (pp, locus->line);
+          }
+          break;
+
+	case '.':
+	  {
+	    int n;
+	    const char *s;
+	    /* We handle no precision specifier but `%.*s'.  */
+	    if (*++text->format_spec != '*')
+	      abort ();
+	    else if (*++text->format_spec != 's')
+	      abort ();
+	    n = va_arg (*text->args_ptr, int);
+	    s = va_arg (*text->args_ptr, const char *);
+	    pp_append_text (pp, s, s + n);
+	  }
+	  break;
+
+	default:
+          if (!pp_format_decoder (pp) || !(*pp_format_decoder (pp)) (pp, text))
+	    {
+	      /* Hmmm.  The client failed to install a format translator
+                 but called us with an unrecognized format.  Or, maybe, the
+                 translated string just contains an invalid format, or
+                 has formats in the wrong order.  Sorry.  */
+	      abort ();
+	    }
+	}
+    }
+}
+
+/* Helper subroutine of output_verbatim and verbatim. Do the appropriate
+   settings needed by BUFFER for a verbatim formatting.  */
+void
+pp_base_format_verbatim (pretty_printer *pp, text_info *text)
+{
+  diagnostic_prefixing_rule_t rule = pp_prefixing_rule (pp);
+  int line_cutoff = pp_line_cutoff (pp);
+
+  /* Set verbatim mode.  */
+  pp->prefixing_rule = DIAGNOSTICS_SHOW_PREFIX_NEVER;
+  pp_line_cutoff (pp) = 0;
+  /* Do the actual formatting.  */
+  pp_format_text (pp, text);
+  /* Restore previous settings.  */
+  pp_prefixing_rule (pp) = rule;
+  pp_line_cutoff (pp) = line_cutoff;
+}
+
+/* Flush the content of BUFFER onto the attached stream.  */
+void
+pp_base_flush (pretty_printer *pp)
+{
+  pp_write_text_to_stream (pp);
+  pp_clear_state (pp);
+  fputc ('\n', pp->buffer->stream);
+  fflush (pp->buffer->stream);
+  pp_needs_newline (pp) = false;
+}
+
+/* Sets the number of maximum characters per line PRETTY-PRINTER can
+   output in line-wrapping mode.  A LENGTH value 0 suppresses
+   line-wrapping.  */
+void
+pp_base_set_line_maximum_length (pretty_printer *pp, int length)
+{
+  pp_line_cutoff (pp) = length;
+  pp_set_real_maximum_length (pp);
+}
+
+/* Clear PRETTY-PRINTER output area text info.  */
+void
+pp_base_clear_output_area (pretty_printer *pp)
+{
+  obstack_free (&pp->buffer->obstack, obstack_base (&pp->buffer->obstack));
+  pp->buffer->line_length = 0;
+}
+
+/* Set PREFIX for PRETTY-PRINTER.  */
+void
+pp_base_set_prefix (pretty_printer *pp, const char *prefix)
+{
+  pp->prefix = prefix;
+  pp_set_real_maximum_length (pp);
+  pp->emitted_prefix = false;
+  pp_indentation (pp) = 0;
+}
+
+/* Free PRETTY-PRINTER's prefix, a previously malloc()'d string.  */
+void
+pp_base_destroy_prefix (pretty_printer *pp)
+{
+  if (pp->prefix != NULL)
+    {
+      free ((char *) pp->prefix);
+      pp->prefix = NULL;
+    }
+}
+
+/* Write out PRETTY-PRINTER's prefix.  */
+void
+pp_base_emit_prefix (pretty_printer *pp)
+{
+  if (pp->prefix != NULL)
+    {
+      switch (pp_prefixing_rule (pp))
+	{
+	default:
+	case DIAGNOSTICS_SHOW_PREFIX_NEVER:
+	  break;
+
+	case DIAGNOSTICS_SHOW_PREFIX_ONCE:
+	  if (pp->emitted_prefix)
+	    {
+	      pp_base_indent (pp);
+	      break;
+	    }
+	  pp_indentation (pp) += 3;
+	  /* Fall through.  */
+
+	case DIAGNOSTICS_SHOW_PREFIX_EVERY_LINE:
+	  {
+	    int prefix_length = strlen (pp->prefix);
+	    pp_append_r (pp, pp->prefix, prefix_length);
+	    pp->emitted_prefix = true;
+	  }
+	  break;
+	}
+    }
+}
+
+/* Construct a PRETTY-PRINTER with PREFIX and of MAXIMUM_LENGTH
+   characters per line.  */
+void
+pp_construct (pretty_printer *pp, const char *prefix, int maximum_length)
+{
+  memset (pp, 0, sizeof (pretty_printer));
+  pp->buffer = xcalloc (1, sizeof (output_buffer));
+  obstack_init (&pp->buffer->obstack);
+  pp->buffer->stream = stderr;
+  pp_line_cutoff (pp) = maximum_length;
+  pp_prefixing_rule (pp) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
+  pp_set_prefix (pp, prefix);
+}
+
+/* Append a string delimited by START and END to the output area of
+   PRETTY-PRINTER.  No line wrapping is done.  However, if beginning a
+   new line then emit PRETTY-PRINTER's prefix and skip any leading
+   whitespace if appropriate.  The caller must ensure that it is
+   safe to do so.  */
+void
+pp_base_append_text (pretty_printer *pp, const char *start, const char *end)
+{
+  /* Emit prefix and skip whitespace if we're starting a new line.  */
+  if (pp->buffer->line_length == 0)
+    {
+      pp_emit_prefix (pp);
+      if (pp_is_wrapping_line (pp))
+	while (start != end && *start == ' ')
+	  ++start;
+    }
+  pp_append_r (pp, start, end - start);
+}
+
+/* Finishes constructing a NULL-terminated character string representing
+   the PRETTY-PRINTED text.  */
+const char *
+pp_base_formatted_text (pretty_printer *pp)
+{
+  obstack_1grow (&pp->buffer->obstack, '\0');
+  return pp_formatted_text_data (pp);
+}
+
+/*  Return a pointer to the last character emitted in PRETTY-PRINTER's
+    output area.  A NULL pointer means no character available.  */
+const char *
+pp_base_last_position_in_text (const pretty_printer *pp)
+{
+  const char *p = NULL;
+  struct obstack *text = &pp->buffer->obstack;
+
+  if (obstack_base (text) != obstack_next_free (text))
+    p = ((const char *) obstack_next_free (text)) - 1;
+  return p;
+}
+
+/* Return the amount of characters PRETTY-PRINTER can accept to
+   make a full line.  Meaningful only in line-wrapping mode.  */
+int
+pp_base_remaining_character_count_for_line (pretty_printer *pp)
+{
+  return pp->maximum_length - pp->buffer->line_length;
+}
+
+
+/* Format a message into BUFFER a la printf.  */
+void
+pp_printf (pretty_printer *pp, const char *msg, ...)
+{
+  text_info text;
+  va_list ap;
+
+  va_start (ap, msg);
+  text.err_no = errno;
+  text.args_ptr = &ap;
+  text.format_spec = msg;
+  pp_format_text (pp, &text);
+  va_end (ap);
+}
+
+
+/* Output MESSAGE verbatim into BUFFER.  */
+void
+pp_verbatim (pretty_printer *pp, const char *msg, ...)
+{
+  text_info text;
+  va_list ap;
+
+  va_start (ap, msg);
+  text.err_no = errno;
+  text.args_ptr = &ap;
+  text.format_spec = msg;
+  pp_format_verbatim (pp, &text);
+  va_end (ap);
+}
+
+
+
+/* Have PRETTY-PRINTER start a new line.  */
+void
+pp_base_newline (pretty_printer *pp)
+{
+  obstack_1grow (&pp->buffer->obstack, '\n');
+  pp->buffer->line_length = 0;
+}
+
+/* Have PRETTY-PRINTER add a CHARACTER.  */
+void
+pp_base_character (pretty_printer *pp, int c)
+{
+  if (pp_is_wrapping_line (pp)
+      && pp_remaining_character_count_for_line (pp) <= 0)
+    {
+      pp_newline (pp);
+      if (ISSPACE (c))
+        return;
+    }
+  obstack_1grow (&pp->buffer->obstack, c);
+  ++pp->buffer->line_length;
+}
+
+/* Append a STRING to the output area of PRETTY-PRINTER; the STRING may
+   be line-wrapped if in appropriate mode.  */
+void
+pp_base_string (pretty_printer *pp, const char *str)
+{
+  pp_maybe_wrap_text (pp, str, str + (str ? strlen (str) : 0));
+}
+
+