Delete old versions of GCC.

Change-Id: I710f125d905290e1024cbd67f48299861790c66c

1 files changed, 0 insertions, 555 deletions

diff --git a/gcc-4.7/libmudflap/mf-hooks1.c b/gcc-4.7/libmudflap/mf-hooks1.c
deleted file mode 100644
index 3dd332e12..000000000
--- a/gcc-4.7/libmudflap/mf-hooks1.c
+++ /dev/null
@@ -1,555 +0,0 @@
-/* Mudflap: narrow-pointer bounds-checking by tree rewriting.
-   Copyright (C) 2002, 2003, 2004, 2009, 2011 Free Software Foundation, Inc.
-   Contributed by Frank Ch. Eigler <fche@redhat.com>
-   and Graydon Hoare <graydon@redhat.com>
-
-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 3, 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.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-<http://www.gnu.org/licenses/>.  */
-
-#include "config.h"
-
-#ifndef HAVE_SOCKLEN_T
-#define socklen_t int
-#endif
-
-
-/* These attempt to coax various unix flavours to declare all our
-   needed tidbits in the system headers.  */
-#if !defined(__FreeBSD__)  && !defined(__APPLE__)
-#define _POSIX_SOURCE
-#endif /* Some BSDs break <sys/socket.h> if this is defined. */
-#define _GNU_SOURCE
-#define _XOPEN_SOURCE
-#define _BSD_TYPES
-#define __EXTENSIONS__
-#define _ALL_SOURCE
-#define _LARGE_FILE_API
-#define _XOPEN_SOURCE_EXTENDED 1
-
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <assert.h>
-#include <errno.h>
-#include <limits.h>
-#include <time.h>
-
-#include "mf-runtime.h"
-#include "mf-impl.h"
-
-#ifdef _MUDFLAP
-#error "Do not compile this file with -fmudflap!"
-#endif
-
-
-/* Memory allocation related hook functions.  Some of these are
-   intercepted via linker wrapping or symbol interposition.  Others
-   use plain macros in mf-runtime.h.  */
-
-
-#if PIC
-
-enum { BS = 4096, NB=10 };
-static char __mf_0fn_bufs[NB][BS];
-static unsigned __mf_0fn_bufs_used[NB];
-
-
-/* A special bootstrap variant. */
-void *
-__mf_0fn_malloc (size_t c)
-{
-  unsigned i;
-
-  for (i=0; i<NB; i++)
-    {
-      if (! __mf_0fn_bufs_used[i] && c < BS)
-	{
-	  __mf_0fn_bufs_used[i] = 1;
-	  return & __mf_0fn_bufs[i][0];
-	}
-    }
-  return NULL;
-}
-#endif
-
-
-#undef malloc
-WRAPPER(void *, malloc, size_t c)
-{
-  size_t size_with_crumple_zones;
-  DECLARE(void *, malloc, size_t c);
-  void *result;
-  BEGIN_PROTECT (malloc, c);
-
-  size_with_crumple_zones =
-    CLAMPADD(c,CLAMPADD(__mf_opts.crumple_zone,
-			__mf_opts.crumple_zone));
-  BEGIN_MALLOC_PROTECT ();
-  result = (char *) CALL_REAL (malloc, size_with_crumple_zones);
-  END_MALLOC_PROTECT ();
-
-  if (LIKELY(result))
-    {
-      result += __mf_opts.crumple_zone;
-      __mf_register (result, c, __MF_TYPE_HEAP, "malloc region");
-      /* XXX: register __MF_TYPE_NOACCESS for crumple zones.  */
-    }
-
-  return result;
-}
-
-
-#ifdef PIC
-/* A special bootstrap variant. */
-void *
-__mf_0fn_calloc (size_t c, size_t n)
-{
-  return __mf_0fn_malloc (c * n);
-}
-#endif
-
-
-#undef calloc
-WRAPPER(void *, calloc, size_t c, size_t n)
-{
-  size_t size_with_crumple_zones;
-  DECLARE(void *, calloc, size_t, size_t);
-  DECLARE(void *, malloc, size_t);
-  DECLARE(void *, memset, void *, int, size_t);
-  char *result;
-  BEGIN_PROTECT (calloc, c, n);
-
-  size_with_crumple_zones =
-    CLAMPADD((c * n), /* XXX: CLAMPMUL */
-	     CLAMPADD(__mf_opts.crumple_zone,
-		      __mf_opts.crumple_zone));
-  BEGIN_MALLOC_PROTECT ();
-  result = (char *) CALL_REAL (malloc, size_with_crumple_zones);
-  END_MALLOC_PROTECT ();
-
-  if (LIKELY(result))
-    memset (result, 0, size_with_crumple_zones);
-
-  if (LIKELY(result))
-    {
-      result += __mf_opts.crumple_zone;
-      __mf_register (result, c*n /* XXX: clamp */, __MF_TYPE_HEAP_I, "calloc region");
-      /* XXX: register __MF_TYPE_NOACCESS for crumple zones.  */
-    }
-
-  return result;
-}
-
-
-#if PIC
-/* A special bootstrap variant. */
-void *
-__mf_0fn_realloc (void *buf, size_t c)
-{
-  return NULL;
-}
-#endif
-
-
-#undef realloc
-WRAPPER(void *, realloc, void *buf, size_t c)
-{
-  DECLARE(void * , realloc, void *, size_t);
-  size_t size_with_crumple_zones;
-  char *base = buf;
-  unsigned saved_wipe_heap;
-  char *result;
-  BEGIN_PROTECT (realloc, buf, c);
-
-  if (LIKELY(buf))
-    base -= __mf_opts.crumple_zone;
-
-  size_with_crumple_zones =
-    CLAMPADD(c, CLAMPADD(__mf_opts.crumple_zone,
-			 __mf_opts.crumple_zone));
-  BEGIN_MALLOC_PROTECT ();
-  result = (char *) CALL_REAL (realloc, base, size_with_crumple_zones);
-  END_MALLOC_PROTECT ();
-
-  /* Ensure heap wiping doesn't occur during this peculiar
-     unregister/reregister pair.  */
-  LOCKTH ();
-  __mf_set_state (reentrant);
-  saved_wipe_heap = __mf_opts.wipe_heap;
-  __mf_opts.wipe_heap = 0;
-
-  if (LIKELY(buf))
-    __mfu_unregister (buf, 0, __MF_TYPE_HEAP_I);
-  /* NB: underlying region may have been __MF_TYPE_HEAP. */
-
-  if (LIKELY(result))
-    {
-      result += __mf_opts.crumple_zone;
-      __mfu_register (result, c, __MF_TYPE_HEAP_I, "realloc region");
-      /* XXX: register __MF_TYPE_NOACCESS for crumple zones.  */
-    }
-
-  /* Restore previous setting.  */
-  __mf_opts.wipe_heap = saved_wipe_heap;
-
-  __mf_set_state (active);
-  UNLOCKTH ();
-
-  return result;
-}
-
-
-#if PIC
-/* A special bootstrap variant. */
-void
-__mf_0fn_free (void *buf)
-{
-  return;
-}
-#endif
-
-#undef free
-WRAPPER(void, free, void *buf)
-{
-  /* Use a circular queue to delay some number (__mf_opts.free_queue_length) of free()s.  */
-  static void *free_queue [__MF_FREEQ_MAX];
-  static unsigned free_ptr = 0;
-  static int freeq_initialized = 0;
-  DECLARE(void, free, void *);
-
-  BEGIN_PROTECT (free, buf);
-
-  if (UNLIKELY(buf == NULL))
-    return;
-
-#if PIC
-  /* Check whether the given buffer might have come from a
-     __mf_0fn_malloc/calloc call that for whatever reason was not
-     redirected back to __mf_0fn_free.  If so, we just ignore the
-     call. */
-  if (UNLIKELY((uintptr_t) buf >= (uintptr_t) __mf_0fn_bufs &&
-               (uintptr_t) buf < ((uintptr_t) __mf_0fn_bufs + sizeof(__mf_0fn_bufs))))
-  {
-    VERBOSE_TRACE ("skipping free of boot (0fn) alloc buffer %p\n", buf);
-    return;
-  }
-#endif
-
-  LOCKTH ();
-  if (UNLIKELY(!freeq_initialized))
-    {
-      memset (free_queue, 0,
-		     __MF_FREEQ_MAX * sizeof (void *));
-      freeq_initialized = 1;
-    }
-  UNLOCKTH ();
-
-  __mf_unregister (buf, 0, __MF_TYPE_HEAP_I);
-  /* NB: underlying region may have been __MF_TYPE_HEAP. */
-
-  if (UNLIKELY(__mf_opts.free_queue_length > 0))
-    {
-      char *freeme = NULL;
-      LOCKTH ();
-      if (free_queue [free_ptr] != NULL)
-	{
-	  freeme = free_queue [free_ptr];
-	  freeme -= __mf_opts.crumple_zone;
-	}
-      free_queue [free_ptr] = buf;
-      free_ptr = (free_ptr == (__mf_opts.free_queue_length-1) ? 0 : free_ptr + 1);
-      UNLOCKTH ();
-      if (freeme)
-	{
-	  if (__mf_opts.trace_mf_calls)
-	    {
-	      VERBOSE_TRACE ("freeing deferred pointer %p (crumple %u)\n",
-			     (void *) freeme,
-			     __mf_opts.crumple_zone);
-	    }
-	  BEGIN_MALLOC_PROTECT ();
-	  CALL_REAL (free, freeme);
-	  END_MALLOC_PROTECT ();
-	}
-    }
-  else
-    {
-      /* back pointer up a bit to the beginning of crumple zone */
-      char *base = (char *)buf;
-      base -= __mf_opts.crumple_zone;
-      if (__mf_opts.trace_mf_calls)
-	{
-	  VERBOSE_TRACE ("freeing pointer %p = %p - %u\n",
-			 (void *) base,
-			 (void *) buf,
-			 __mf_opts.crumple_zone);
-	}
-      BEGIN_MALLOC_PROTECT ();
-      CALL_REAL (free, base);
-      END_MALLOC_PROTECT ();
-    }
-}
-
-
-/* We can only wrap mmap if the target supports it.  Likewise for munmap.
-   We assume we have both if we have mmap.  */
-#ifdef HAVE_MMAP
-
-#if PIC
-/* A special bootstrap variant. */
-void *
-__mf_0fn_mmap (void *start, size_t l, int prot, int f, int fd, off_t off)
-{
-#if defined(__FreeBSD__)
-  if (f == 0x1000 && fd == -1 && prot == 0 && off == 0)
-    return 0;
-#endif /* Ignore red zone allocation request for initial thread's stack. */
-
-  return (void *) -1;
-}
-#endif
-
-
-#undef mmap
-WRAPPER(void *, mmap,
-	void  *start,  size_t length, int prot,
-	int flags, int fd, off_t offset)
-{
-  DECLARE(void *, mmap, void *, size_t, int,
-			    int, int, off_t);
-  void *result;
-  BEGIN_PROTECT (mmap, start, length, prot, flags, fd, offset);
-
-  result = CALL_REAL (mmap, start, length, prot,
-			flags, fd, offset);
-
-  /*
-  VERBOSE_TRACE ("mmap (%08lx, %08lx, ...) => %08lx\n",
-		 (uintptr_t) start, (uintptr_t) length,
-		 (uintptr_t) result);
-  */
-
-  if (result != (void *)-1)
-    {
-      /* Register each page as a heap object.  Why not register it all
-	 as a single segment?  That's so that a later munmap() call
-	 can unmap individual pages.  XXX: would __MF_TYPE_GUESS make
-	 this more automatic?  */
-      size_t ps = getpagesize ();
-      uintptr_t base = (uintptr_t) result;
-      uintptr_t offset;
-
-      for (offset=0; offset<length; offset+=ps)
-	{
-	  /* XXX: We could map PROT_NONE to __MF_TYPE_NOACCESS. */
-	  /* XXX: Unaccessed HEAP pages are reported as leaks.  Is this
-	     appropriate for unaccessed mmap pages? */
-	  __mf_register ((void *) CLAMPADD (base, offset), ps,
-			 __MF_TYPE_HEAP_I, "mmap page");
-	}
-    }
-
-  return result;
-}
-
-
-#if PIC
-/* A special bootstrap variant. */
-int
-__mf_0fn_munmap (void *start, size_t length)
-{
-  return -1;
-}
-#endif
-
-
-#undef munmap
-WRAPPER(int , munmap, void *start, size_t length)
-{
-  DECLARE(int, munmap, void *, size_t);
-  int result;
-  BEGIN_PROTECT (munmap, start, length);
-
-  result = CALL_REAL (munmap, start, length);
-
-  /*
-  VERBOSE_TRACE ("munmap (%08lx, %08lx, ...) => %08lx\n",
-		 (uintptr_t) start, (uintptr_t) length,
-		 (uintptr_t) result);
-  */
-
-  if (result == 0)
-    {
-      /* Unregister each page as a heap object.  */
-      size_t ps = getpagesize ();
-      uintptr_t base = (uintptr_t) start & (~ (ps - 1)); /* page align */
-      uintptr_t offset;
-
-      for (offset=0; offset<length; offset+=ps)
-	__mf_unregister ((void *) CLAMPADD (base, offset), ps, __MF_TYPE_HEAP_I);
-    }
-  return result;
-}
-#endif /* HAVE_MMAP */
-
-
-#ifdef HAVE_MMAP64
-#if PIC
-/* A special bootstrap variant. */
-void *
-__mf_0fn_mmap64 (void *start, size_t l, int prot, int f, int fd, off64_t off)
-{
-  return (void *) -1;
-}
-#endif
-
-
-#undef mmap
-WRAPPER(void *, mmap64,
-	void  *start,  size_t length, int prot,
-	int flags, int fd, off64_t offset)
-{
-  DECLARE(void *, mmap64, void *, size_t, int,
-			    int, int, off64_t);
-  void *result;
-  BEGIN_PROTECT (mmap64, start, length, prot, flags, fd, offset);
-
-  result = CALL_REAL (mmap64, start, length, prot,
-			flags, fd, offset);
-
-  /*
-  VERBOSE_TRACE ("mmap64 (%08lx, %08lx, ...) => %08lx\n",
-		 (uintptr_t) start, (uintptr_t) length,
-		 (uintptr_t) result);
-  */
-
-  if (result != (void *)-1)
-    {
-      /* Register each page as a heap object.  Why not register it all
-	 as a single segment?  That's so that a later munmap() call
-	 can unmap individual pages.  XXX: would __MF_TYPE_GUESS make
-	 this more automatic?  */
-      size_t ps = getpagesize ();
-      uintptr_t base = (uintptr_t) result;
-      uintptr_t offset;
-
-      for (offset=0; offset<length; offset+=ps)
-	{
-	  /* XXX: We could map PROT_NONE to __MF_TYPE_NOACCESS. */
-	  /* XXX: Unaccessed HEAP pages are reported as leaks.  Is this
-	     appropriate for unaccessed mmap pages? */
-	  __mf_register ((void *) CLAMPADD (base, offset), ps,
-			 __MF_TYPE_HEAP_I, "mmap64 page");
-	}
-    }
-
-  return result;
-}
-#endif /* HAVE_MMAP64 */
-
-
-/* This wrapper is a little different, as it's called indirectly from
-   __mf_fini also to clean up pending allocations.  */
-void *
-__mf_wrap_alloca_indirect (size_t c)
-{
-  DECLARE (void *, malloc, size_t);
-  DECLARE (void, free, void *);
-
-  /* This struct, a linked list, tracks alloca'd objects.  The newest
-     object is at the head of the list.  If we detect that we've
-     popped a few levels of stack, then the listed objects are freed
-     as needed.  NB: The tracking struct is allocated with
-     real_malloc; the user data with wrap_malloc.
-  */
-  struct alloca_tracking { void *ptr; void *stack; struct alloca_tracking* next; };
-  static struct alloca_tracking *alloca_history = NULL;
-
-  void *stack = __builtin_frame_address (0);
-  void *result;
-  struct alloca_tracking *track;
-
-  TRACE ("%s\n", __PRETTY_FUNCTION__);
-  VERBOSE_TRACE ("alloca stack level %p\n", (void *) stack);
-
-  /* XXX: thread locking! */
-
-  /* Free any previously alloca'd blocks that belong to deeper-nested functions,
-     which must therefore have exited by now.  */
-
-#define DEEPER_THAN < /* XXX: for x86; steal find_stack_direction() from libiberty/alloca.c */
-
-  while (alloca_history &&
-	 ((uintptr_t) alloca_history->stack DEEPER_THAN (uintptr_t) stack))
-    {
-      struct alloca_tracking *next = alloca_history->next;
-      __mf_unregister (alloca_history->ptr, 0, __MF_TYPE_HEAP);
-      BEGIN_MALLOC_PROTECT ();
-      CALL_REAL (free, alloca_history->ptr);
-      CALL_REAL (free, alloca_history);
-      END_MALLOC_PROTECT ();
-      alloca_history = next;
-    }
-
-  /* Allocate new block.  */
-  result = NULL;
-  if (LIKELY (c > 0)) /* alloca(0) causes no allocation.  */
-    {
-      BEGIN_MALLOC_PROTECT ();
-      track = (struct alloca_tracking *) CALL_REAL (malloc,
-						    sizeof (struct alloca_tracking));
-      END_MALLOC_PROTECT ();
-      if (LIKELY (track != NULL))
-	{
-	  BEGIN_MALLOC_PROTECT ();
-	  result = CALL_REAL (malloc, c);
-	  END_MALLOC_PROTECT ();
-	  if (UNLIKELY (result == NULL))
-	    {
-	      BEGIN_MALLOC_PROTECT ();
-	      CALL_REAL (free, track);
-	      END_MALLOC_PROTECT ();
-	      /* Too bad.  XXX: What about errno?  */
-	    }
-	  else
-	    {
-	      __mf_register (result, c, __MF_TYPE_HEAP, "alloca region");
-	      track->ptr = result;
-	      track->stack = stack;
-	      track->next = alloca_history;
-	      alloca_history = track;
-	    }
-	}
-    }
-
-  return result;
-}
-
-
-#undef alloca
-WRAPPER(void *, alloca, size_t c)
-{
-  return __mf_wrap_alloca_indirect (c);
-}
-