Delete old versions of GCC.

Change-Id: I710f125d905290e1024cbd67f48299861790c66c

1 files changed, 0 insertions, 441 deletions

diff --git a/gcc-4.4.3/gcc/unwind-dw2-fde-glibc.c b/gcc-4.4.3/gcc/unwind-dw2-fde-glibc.c
deleted file mode 100644
index bad608280..000000000
--- a/gcc-4.4.3/gcc/unwind-dw2-fde-glibc.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009 Free Software Foundation, Inc.
-   Contributed by Jakub Jelinek <jakub@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/>.  */
-
-/* Locate the FDE entry for a given address, using PT_GNU_EH_FRAME ELF
-   segment and dl_iterate_phdr to avoid register/deregister calls at
-   DSO load/unload.  */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE 1
-#endif
-
-#include "tconfig.h"
-#include "tsystem.h"
-#ifndef inhibit_libc
-#include <elf.h>                /* Get DT_CONFIG.  */
-#endif
-#include "coretypes.h"
-#include "tm.h"
-#include "dwarf2.h"
-#include "unwind.h"
-#define NO_BASE_OF_ENCODED_VALUE
-#include "unwind-pe.h"
-#include "unwind-dw2-fde.h"
-#include "unwind-compat.h"
-#include "gthr.h"
-
-#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
-    && ((defined(__BIONIC__) && (defined(mips) || defined(__mips__))) \
-	|| (__GLIBC__ > 2 \
-	    || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
-	    || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG))))
-
-#include <link.h>
-
-#ifndef __RELOC_POINTER
-# define __RELOC_POINTER(ptr, base) ((ptr) + (base))
-#endif
-
-static const fde * _Unwind_Find_registered_FDE (void *pc, struct dwarf_eh_bases *bases);
-
-#define _Unwind_Find_FDE _Unwind_Find_registered_FDE
-#include "unwind-dw2-fde.c"
-#undef _Unwind_Find_FDE
-
-#ifndef PT_GNU_EH_FRAME
-#define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550)
-#endif
-
-struct unw_eh_callback_data
-{
-  _Unwind_Ptr pc;
-  void *tbase;
-  void *dbase;
-  void *func;
-  const fde *ret;
-  int check_cache;
-};
-
-struct unw_eh_frame_hdr
-{
-  unsigned char version;
-  unsigned char eh_frame_ptr_enc;
-  unsigned char fde_count_enc;
-  unsigned char table_enc;
-};
-
-#define FRAME_HDR_CACHE_SIZE 8
-
-static struct frame_hdr_cache_element
-{
-  _Unwind_Ptr pc_low;
-  _Unwind_Ptr pc_high;
-  _Unwind_Ptr load_base;
-  const ElfW(Phdr) *p_eh_frame_hdr;
-  const ElfW(Phdr) *p_dynamic;
-  struct frame_hdr_cache_element *link;
-} frame_hdr_cache[FRAME_HDR_CACHE_SIZE];
-
-static struct frame_hdr_cache_element *frame_hdr_cache_head;
-
-/* Like base_of_encoded_value, but take the base from a struct
-   unw_eh_callback_data instead of an _Unwind_Context.  */
-
-static _Unwind_Ptr
-base_from_cb_data (unsigned char encoding, struct unw_eh_callback_data *data)
-{
-  if (encoding == DW_EH_PE_omit)
-    return 0;
-
-  switch (encoding & 0x70)
-    {
-    case DW_EH_PE_absptr:
-    case DW_EH_PE_pcrel:
-    case DW_EH_PE_aligned:
-      return 0;
-
-    case DW_EH_PE_textrel:
-      return (_Unwind_Ptr) data->tbase;
-    case DW_EH_PE_datarel:
-      return (_Unwind_Ptr) data->dbase;
-    default:
-      gcc_unreachable ();
-    }
-}
-
-static int
-_Unwind_IteratePhdrCallback (struct dl_phdr_info *info, size_t size, void *ptr)
-{
-  struct unw_eh_callback_data *data = (struct unw_eh_callback_data *) ptr;
-  const ElfW(Phdr) *phdr, *p_eh_frame_hdr, *p_dynamic;
-  long n, match;
-#ifdef __FRV_FDPIC__
-  struct elf32_fdpic_loadaddr load_base;
-#else
-  _Unwind_Ptr load_base;
-#endif
-  const unsigned char *p;
-  const struct unw_eh_frame_hdr *hdr;
-  _Unwind_Ptr eh_frame;
-  struct object ob;
-  
-  struct ext_dl_phdr_info
-    {
-      ElfW(Addr) dlpi_addr;
-      const char *dlpi_name;
-      const ElfW(Phdr) *dlpi_phdr;
-      ElfW(Half) dlpi_phnum;
-      unsigned long long int dlpi_adds;
-      unsigned long long int dlpi_subs;
-    };
-
-  match = 0;
-  phdr = info->dlpi_phdr;
-  load_base = info->dlpi_addr;
-  p_eh_frame_hdr = NULL;
-  p_dynamic = NULL;
-
-  struct frame_hdr_cache_element *prev_cache_entry = NULL,
-    *last_cache_entry = NULL;
-
-  if (data->check_cache && size >= sizeof (struct ext_dl_phdr_info))
-    {
-      static unsigned long long adds = -1ULL, subs;
-      struct ext_dl_phdr_info *einfo = (struct ext_dl_phdr_info *) info;
-
-      /* We use a least recently used cache replacement policy.  Also,
-	 the most recently used cache entries are placed at the head
-	 of the search chain.  */
-
-      if (einfo->dlpi_adds == adds && einfo->dlpi_subs == subs)
-	{
-	  /* Find data->pc in shared library cache.
-	     Set load_base, p_eh_frame_hdr and p_dynamic
-	     plus match from the cache and goto
-	     "Read .eh_frame_hdr header." below.  */
-
-	  struct frame_hdr_cache_element *cache_entry;
-
-	  for (cache_entry = frame_hdr_cache_head;
-	       cache_entry;
-	       cache_entry = cache_entry->link)
-	    {
-	      if (data->pc >= cache_entry->pc_low
-		  && data->pc < cache_entry->pc_high)
-		{
-		  load_base = cache_entry->load_base;
-		  p_eh_frame_hdr = cache_entry->p_eh_frame_hdr;
-		  p_dynamic = cache_entry->p_dynamic;
-
-		  /* And move the entry we're using to the head.  */
-		  if (cache_entry != frame_hdr_cache_head)
-		    {
-		      prev_cache_entry->link = cache_entry->link;
-		      cache_entry->link = frame_hdr_cache_head;
-		      frame_hdr_cache_head = cache_entry;
-		    }
-		  goto found;
-		}
-		  
-	      last_cache_entry = cache_entry;
-	      /* Exit early if we found an unused entry.  */
-	      if ((cache_entry->pc_low | cache_entry->pc_high) == 0)
-		break;
-	      if (cache_entry->link != NULL)
-		prev_cache_entry = cache_entry;		  
-	    }
-	}
-      else
-	{
-	  adds = einfo->dlpi_adds;
-	  subs = einfo->dlpi_subs;
-	  /* Initialize the cache.  Create a chain of cache entries,
-	     with the final one terminated by a NULL link.  */
-	  int i;
-	  for (i = 0; i < FRAME_HDR_CACHE_SIZE; i++)
-	    {
-	      frame_hdr_cache[i].pc_low = 0;
-	      frame_hdr_cache[i].pc_high = 0;
-	      frame_hdr_cache[i].link = &frame_hdr_cache[i+1];
-	    }
-	  frame_hdr_cache[i-1].link = NULL;
-	  frame_hdr_cache_head = &frame_hdr_cache[0];
-	  data->check_cache = 0;
-	}
-    }
-
-  /* Make sure struct dl_phdr_info is at least as big as we need.  */
-  if (size < offsetof (struct dl_phdr_info, dlpi_phnum)
-	     + sizeof (info->dlpi_phnum))
-    return -1;
- 
-  _Unwind_Ptr pc_low = 0, pc_high = 0;
-
-  /* See if PC falls into one of the loaded segments.  Find the eh_frame
-     segment at the same time.  */
-  for (n = info->dlpi_phnum; --n >= 0; phdr++)
-    {
-      if (phdr->p_type == PT_LOAD)
-	{
-	  _Unwind_Ptr vaddr = (_Unwind_Ptr)
-	    __RELOC_POINTER (phdr->p_vaddr, load_base);
-	  if (data->pc >= vaddr && data->pc < vaddr + phdr->p_memsz)
-	    {
-	      match = 1;
-	      pc_low = vaddr;
-	      pc_high =  vaddr + phdr->p_memsz;
-	    }
-	}
-      else if (phdr->p_type == PT_GNU_EH_FRAME)
-	p_eh_frame_hdr = phdr;
-      else if (phdr->p_type == PT_DYNAMIC)
-	p_dynamic = phdr;
-    }
-  
-  if (!match)
-    return 0;
-
-  if (size >= sizeof (struct ext_dl_phdr_info))
-    {
-      /* Move the cache entry we're about to overwrite to the head of
-	 the list.  If either last_cache_entry or prev_cache_entry are
-	 NULL, that cache entry is already at the head.  */
-      if (last_cache_entry != NULL && prev_cache_entry != NULL)
-	{
-	  prev_cache_entry->link = last_cache_entry->link;
-	  last_cache_entry->link = frame_hdr_cache_head;
-	  frame_hdr_cache_head = last_cache_entry;
-	}
-
-      frame_hdr_cache_head->load_base = load_base;
-      frame_hdr_cache_head->p_eh_frame_hdr = p_eh_frame_hdr;
-      frame_hdr_cache_head->p_dynamic = p_dynamic;
-      frame_hdr_cache_head->pc_low = pc_low;
-      frame_hdr_cache_head->pc_high = pc_high;
-    }
-
- found:
-
-  if (!p_eh_frame_hdr)
-    return 0;
-
-  /* Read .eh_frame_hdr header.  */
-  hdr = (const struct unw_eh_frame_hdr *)
-    __RELOC_POINTER (p_eh_frame_hdr->p_vaddr, load_base);
-  if (hdr->version != 1)
-    return 1;
-
-#ifdef CRT_GET_RFIB_DATA
-# ifdef __i386__
-  data->dbase = NULL;
-  if (p_dynamic)
-    {
-      /* For dynamically linked executables and shared libraries,
-	 DT_PLTGOT is the gp value for that object.  */
-      ElfW(Dyn) *dyn = (ElfW(Dyn) *)
-	__RELOC_POINTER (p_dynamic->p_vaddr, load_base);
-      for (; dyn->d_tag != DT_NULL ; dyn++)
-	if (dyn->d_tag == DT_PLTGOT)
-	  {
-	    /* On IA-32, _DYNAMIC is writable and GLIBC has relocated it.  */
-	    data->dbase = (void *) dyn->d_un.d_ptr;
-	    break;
-	  }
-    }
-# elif defined __FRV_FDPIC__ && defined __linux__
-  data->dbase = load_base.got_value;
-# else
-#  error What is DW_EH_PE_datarel base on this platform?
-# endif
-#endif
-
-  p = read_encoded_value_with_base (hdr->eh_frame_ptr_enc,
-				    base_from_cb_data (hdr->eh_frame_ptr_enc,
-						       data),
-				    (const unsigned char *) (hdr + 1),
-				    &eh_frame);
-
-  /* We require here specific table encoding to speed things up.
-     Also, DW_EH_PE_datarel here means using PT_GNU_EH_FRAME start
-     as base, not the processor specific DW_EH_PE_datarel.  */
-  if (hdr->fde_count_enc != DW_EH_PE_omit
-      && hdr->table_enc == (DW_EH_PE_datarel | DW_EH_PE_sdata4))
-    {
-      _Unwind_Ptr fde_count;
-
-      p = read_encoded_value_with_base (hdr->fde_count_enc,
-					base_from_cb_data (hdr->fde_count_enc,
-							   data),
-					p, &fde_count);
-      /* Shouldn't happen.  */
-      if (fde_count == 0)
-	return 1;
-      if ((((_Unwind_Ptr) p) & 3) == 0)
-	{
-	  struct fde_table {
-	    signed initial_loc __attribute__ ((mode (SI)));
-	    signed fde __attribute__ ((mode (SI)));
-	  };
-	  const struct fde_table *table = (const struct fde_table *) p;
-	  size_t lo, hi, mid;
-	  _Unwind_Ptr data_base = (_Unwind_Ptr) hdr;
-	  fde *f;
-	  unsigned int f_enc, f_enc_size;
-	  _Unwind_Ptr range;
-
-	  mid = fde_count - 1;
-	  if (data->pc < table[0].initial_loc + data_base)
-	    return 1;
-	  else if (data->pc < table[mid].initial_loc + data_base)
-	    {
-	      lo = 0;
-	      hi = mid;
-
-	      while (lo < hi)
-		{
-		  mid = (lo + hi) / 2;
-		  if (data->pc < table[mid].initial_loc + data_base)
-		    hi = mid;
-		  else if (data->pc >= table[mid + 1].initial_loc + data_base)
-		    lo = mid + 1;
-		  else
-		    break;
-		}
-
-	      gcc_assert (lo < hi);
-	    }
-
-	  f = (fde *) (table[mid].fde + data_base);
-	  f_enc = get_fde_encoding (f);
-	  f_enc_size = size_of_encoded_value (f_enc);
-	  read_encoded_value_with_base (f_enc & 0x0f, 0,
-					&f->pc_begin[f_enc_size], &range);
-	  if (data->pc < table[mid].initial_loc + data_base + range)
-	    data->ret = f;
-	  data->func = (void *) (table[mid].initial_loc + data_base);
-	  return 1;
-	}
-    }
-
-  /* We have no sorted search table, so need to go the slow way.
-     As soon as GLIBC will provide API so to notify that a library has been
-     removed, we could cache this (and thus use search_object).  */
-  ob.pc_begin = NULL;
-  ob.tbase = data->tbase;
-  ob.dbase = data->dbase;
-  ob.u.single = (fde *) eh_frame;
-  ob.s.i = 0;
-  ob.s.b.mixed_encoding = 1;  /* Need to assume worst case.  */
-  data->ret = linear_search_fdes (&ob, (fde *) eh_frame, (void *) data->pc);
-  if (data->ret != NULL)
-    {
-      _Unwind_Ptr func;
-      unsigned int encoding = get_fde_encoding (data->ret);
-      
-      read_encoded_value_with_base (encoding,
-				    base_from_cb_data (encoding, data),
-				    data->ret->pc_begin, &func);
-      data->func = (void *) func;
-    }
-  return 1;
-}
-
-const fde *
-_Unwind_Find_FDE (void *pc, struct dwarf_eh_bases *bases)
-{
-  struct unw_eh_callback_data data;
-  const fde *ret;
-
-  ret = _Unwind_Find_registered_FDE (pc, bases);
-  if (ret != NULL)
-    return ret;
-
-  data.pc = (_Unwind_Ptr) pc;
-  data.tbase = NULL;
-  data.dbase = NULL;
-  data.func = NULL;
-  data.ret = NULL;
-  data.check_cache = 1;
-
-  if (dl_iterate_phdr (_Unwind_IteratePhdrCallback, &data) < 0)
-    return NULL;
-
-  if (data.ret)
-    {
-      bases->tbase = data.tbase;
-      bases->dbase = data.dbase;
-      bases->func = data.func;
-    }
-  return data.ret;
-}
-
-#else
-/* Prevent multiple include of header files.  */
-#define _Unwind_Find_FDE _Unwind_Find_FDE
-#include "unwind-dw2-fde.c"
-#endif
-
-#if defined (USE_GAS_SYMVER) && defined (SHARED) && defined (USE_LIBUNWIND_EXCEPTIONS)
-alias (_Unwind_Find_FDE);
-#endif