/* Solaris host-specific hook definitions.
|
/* Solaris host-specific hook definitions.
|
Copyright (C) 2004, 2007 Free Software Foundation, Inc.
|
Copyright (C) 2004, 2007 Free Software Foundation, Inc.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it
|
GCC is free software; you can redistribute it and/or modify it
|
under the terms of the GNU General Public License as published
|
under the terms of the GNU General Public License as published
|
by the Free Software Foundation; either version 3, or (at your
|
by the Free Software Foundation; either version 3, or (at your
|
option) any later version.
|
option) any later version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
License for more details.
|
License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#include "config.h"
|
#include "config.h"
|
#include "system.h"
|
#include "system.h"
|
#include "coretypes.h"
|
#include "coretypes.h"
|
#include <sys/mman.h>
|
#include <sys/mman.h>
|
#include "hosthooks.h"
|
#include "hosthooks.h"
|
#include "hosthooks-def.h"
|
#include "hosthooks-def.h"
|
|
|
|
|
#undef HOST_HOOKS_GT_PCH_USE_ADDRESS
|
#undef HOST_HOOKS_GT_PCH_USE_ADDRESS
|
#define HOST_HOOKS_GT_PCH_USE_ADDRESS sol_gt_pch_use_address
|
#define HOST_HOOKS_GT_PCH_USE_ADDRESS sol_gt_pch_use_address
|
|
|
/* Map SIZE bytes of FD+OFFSET at BASE. Return 1 if we succeeded at
|
/* Map SIZE bytes of FD+OFFSET at BASE. Return 1 if we succeeded at
|
mapping the data at BASE, -1 if we couldn't. */
|
mapping the data at BASE, -1 if we couldn't. */
|
|
|
static int
|
static int
|
sol_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
|
sol_gt_pch_use_address (void *base, size_t size, int fd, size_t offset)
|
{
|
{
|
void *addr;
|
void *addr;
|
|
|
/* We're called with size == 0 if we're not planning to load a PCH
|
/* 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
|
file at all. This allows the hook to free any static space that
|
we might have allocated at link time. */
|
we might have allocated at link time. */
|
if (size == 0)
|
if (size == 0)
|
return -1;
|
return -1;
|
|
|
addr = mmap (base, size, PROT_READ | PROT_WRITE, MAP_PRIVATE,
|
addr = mmap (base, size, PROT_READ | PROT_WRITE, MAP_PRIVATE,
|
fd, offset);
|
fd, offset);
|
|
|
/* Solaris isn't good about honoring the mmap START parameter
|
/* Solaris isn't good about honoring the mmap START parameter
|
without MAP_FIXED set. Before we give up, search the desired
|
without MAP_FIXED set. Before we give up, search the desired
|
address space with mincore to see if the space is really free. */
|
address space with mincore to see if the space is really free. */
|
if (addr != base)
|
if (addr != base)
|
{
|
{
|
size_t page_size = getpagesize();
|
size_t page_size = getpagesize();
|
char one_byte;
|
char one_byte;
|
size_t i;
|
size_t i;
|
|
|
if (addr != (void *) MAP_FAILED)
|
if (addr != (void *) MAP_FAILED)
|
munmap (addr, size);
|
munmap (addr, size);
|
|
|
errno = 0;
|
errno = 0;
|
for (i = 0; i < size; i += page_size)
|
for (i = 0; i < size; i += page_size)
|
if (mincore ((char *)base + i, page_size, (void *)&one_byte) == -1
|
if (mincore ((char *)base + i, page_size, (void *)&one_byte) == -1
|
&& errno == ENOMEM)
|
&& errno == ENOMEM)
|
continue; /* The page is not mapped. */
|
continue; /* The page is not mapped. */
|
else
|
else
|
break;
|
break;
|
|
|
if (i >= size)
|
if (i >= size)
|
addr = mmap (base, size,
|
addr = mmap (base, size,
|
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED,
|
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED,
|
fd, offset);
|
fd, offset);
|
}
|
}
|
|
|
return addr == base ? 1 : -1;
|
return addr == base ? 1 : -1;
|
}
|
}
|
|
|
|
|
const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER;
|
const struct host_hooks host_hooks = HOST_HOOKS_INITIALIZER;
|
|
|
