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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/host-hpux.c')
-rw-r--r--gcc-4.2.1-5666.3/gcc/config/host-hpux.c136
1 files changed, 0 insertions, 136 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/host-hpux.c b/gcc-4.2.1-5666.3/gcc/config/host-hpux.c
deleted file mode 100644
index 2ca5ba9bc..000000000
--- a/gcc-4.2.1-5666.3/gcc/config/host-hpux.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* HP-UX host-specific hook definitions.
- Copyright (C) 2004, 2005 Free Software Foundation, Inc.
-
- 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, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include <sys/mman.h>
-#include <unistd.h>
-#include "hosthooks.h"
-#include "hosthooks-def.h"
-
-#ifndef MAP_FAILED
-#define MAP_FAILED (void *)-1L
-#endif
-
-static void *hpux_gt_pch_get_address (size_t, int);
-static int hpux_gt_pch_use_address (void *, size_t, int, size_t);
-
-#undef HOST_HOOKS_GT_PCH_GET_ADDRESS
-#define HOST_HOOKS_GT_PCH_GET_ADDRESS hpux_gt_pch_get_address
-#undef HOST_HOOKS_GT_PCH_USE_ADDRESS
-#define HOST_HOOKS_GT_PCH_USE_ADDRESS hpux_gt_pch_use_address
-
-/* For various ports, try to guess a fixed spot in the vm space
- that's probably free. */
-#if (defined(__hppa__) || defined(__ia64__)) && defined(__LP64__)
-# define TRY_EMPTY_VM_SPACE 0x8000000000000000
-#elif defined(__hppa__) || defined(__ia64__)
-# define TRY_EMPTY_VM_SPACE 0x60000000
-#else
-# define TRY_EMPTY_VM_SPACE 0
-#endif
-
-/* Determine a location where we might be able to reliably allocate
- SIZE bytes. FD is the PCH file, though we should return with the
- file unmapped. */
-
-static void *
-hpux_gt_pch_get_address (size_t size, int fd)
-{
- void *addr;
-
- addr = mmap ((void *)TRY_EMPTY_VM_SPACE, size, PROT_READ | PROT_WRITE,
- MAP_PRIVATE, fd, 0);
-
- /* If we failed the map, that means there's *no* free space. */
- if (addr == (void *) MAP_FAILED)
- return NULL;
- /* Unmap the area before returning. */
- munmap (addr, size);
-
- return addr;
-}
-
-/* Map SIZE bytes of FD+OFFSET at BASE. Return 1 if we succeeded at
- mapping the data at BASE, -1 if we couldn't.
-
- It's not possibly to reliably mmap a file using MAP_PRIVATE to
- a specific START address on either hpux or linux. First we see
- if mmap with MAP_PRIVATE works. If it does, we are off to the
- races. If it doesn't, we try an anonymous private mmap since the
- kernel is more likely to honor the BASE address in anonymous maps.
- We then copy the data to the anonymous private map. This assumes
- of course that we don't need to change the data in the PCH file
- after it is created.
-
- This approach obviously causes a performance penalty but there is
- little else we can do given the current PCH implementation. */
-
-static int
-hpux_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
-{
- void *addr;
-
- /* We're called with size == 0 if we're not planning to load a PCH
- file at all. This allows the hook to free any static space that
- we might have allocated at link time. */
- if (size == 0)
- return -1;
-
- /* Try to map the file with MAP_PRIVATE. */
- addr = mmap (base, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, offset);
-
- if (addr == base)
- return 1;
-
- if (addr != (void *) MAP_FAILED)
- munmap (addr, size);
-
- /* Try to make an anonymous private mmap at the desired location. */
- addr = mmap (base, size, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
-
- if (addr != base)
- {
- if (addr != (void *) MAP_FAILED)
- munmap (addr, size);
- return -1;
- }
-
- if (lseek (fd, offset, SEEK_SET) == (off_t)-1)
- return -1;
-
- while (size)
- {
- ssize_t nbytes;
-
- nbytes = read (fd, base, MIN (size, SSIZE_MAX));
- if (nbytes <= 0)
- return -1;
- base = (char *) base + nbytes;
- size -= nbytes;
- }
-
- return 1;
-}
-
-
-const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER;