newlib-cygwin/winsup/cygwin/mmap.cc

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/* mmap.cc
Copyright 1996, 1997, 1998, 2000, 2001, 2002 Red Hat, Inc.
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This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <unistd.h>
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#include <stdlib.h>
#include <stddef.h>
#include <sys/mman.h>
#include <errno.h>
#include "security.h"
#include "fhandler.h"
Add "path.h" include throughout, where needed. Use new path_conv methods and operators to simplify testing for directory and attributes, throughout. * path.h (path_conv::exists): New method. (path_conv::has_attribute): Ditto. (path_conv::isdir): Ditto. (path_conv::DWORD &): New operator. (path_conv::int &): Ditto. * dir.cc (rmdir): Eliminate a goto. * dtable.cc (dtable::build_fhandler): Accept opt and suffix info for path_conv.check. Return fh == NULL on path_conv error. Pass unit to set_name as appropriate. (dtable::reset_unix_path_name): New method. * dtable.h (dtable): Declare new method. Reflect arg changes to build_fhandler. * fhandler.cc (fhandler_disk_dummy_name): Eliminate. (fhandler_base::set_name): Expect paths to be NULL. Build unix_path_name from win32_path_name when it is a device. (fhandler_base::reset_unix_path_name): New method. (fhandler_base::raw_read): Report EISDIR when ERROR_INVALID_FUNCTION or ERROR_INVALID_PARAMETER and reading a directory. (fhandler_disk_file::fstat): Don't call stat_dev since we should now never be calling fhandler_disk_file methods with devices. (fhandler_base::fhandler_base): Clear {unix,win32}_path_name. (fhandler_base::~fhandler_base): Always free {unix,win32}_path_name. (fhandler_disk_file::fhandler_disk_file): Remove set_no_free_names kludge. (fhandler_disk_file::open): Ditto. * fhandler.h (fhandler_base::no_free_names): Eliminate. (fhandler_base::set_no_free_names): Ditto. * fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Don't set unix_path_name here. * path.cc (fchdir): Lock fd table throughout. Use new dtable::reset_unix_path_name method to reset path. * syscalls.cc (stat_worker): Reorganize to always call fstat method. Pass path_conv method to fhandler_*::open. (chroot): Elminate a goto.
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#include "path.h"
#include "dtable.h"
#include "cygerrno.h"
#include "cygheap.h"
#include "pinfo.h"
#include "sys/cygwin.h"
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#define PAGE_CNT(bytes) howmany((bytes),getpagesize())
#define PGBITS (sizeof (DWORD)*8)
#define MAPSIZE(pages) howmany ((pages), PGBITS)
#define MAP_SET(n) (map_map_[(n)/PGBITS] |= (1L << ((n) % PGBITS)))
#define MAP_CLR(n) (map_map_[(n)/PGBITS] &= ~(1L << ((n) % PGBITS)))
#define MAP_ISSET(n) (map_map_[(n)/PGBITS] & (1L << ((n) % PGBITS)))
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/*
* Simple class used to keep a record of all current
* mmap areas in a process. Needed so that
* they can be duplicated after a fork().
*/
class mmap_record
{
private:
int fdesc_;
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HANDLE mapping_handle_;
int devtype_;
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DWORD access_mode_;
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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__off64_t offset_;
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DWORD size_to_map_;
caddr_t base_address_;
DWORD *map_map_;
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public:
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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mmap_record (int fd, HANDLE h, DWORD ac, __off64_t o, DWORD s, caddr_t b) :
fdesc_ (fd),
mapping_handle_ (h),
devtype_ (0),
access_mode_ (ac),
offset_ (o),
size_to_map_ (s),
base_address_ (b),
map_map_ (NULL)
{
if (fd >= 0 && !cygheap->fdtab.not_open (fd))
devtype_ = cygheap->fdtab[fd]->get_device ();
}
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/* Default Copy constructor/operator=/destructor are ok */
/* Simple accessors */
int get_fd () const { return fdesc_; }
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HANDLE get_handle () const { return mapping_handle_; }
DWORD get_device () const { return devtype_; }
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DWORD get_access () const { return access_mode_; }
DWORD get_offset () const { return offset_; }
DWORD get_size () const { return size_to_map_; }
caddr_t get_address () const { return base_address_; }
DWORD *get_map () const { return map_map_; }
void alloc_map ()
{
/* Allocate one bit per page */
map_map_ = (DWORD *) calloc (MAPSIZE (PAGE_CNT (size_to_map_)),
sizeof (DWORD));
if (wincap.virtual_protect_works_on_shared_pages ())
{
DWORD old_prot;
if (!VirtualProtect (base_address_, size_to_map_,
PAGE_NOACCESS, &old_prot))
syscall_printf ("-1 = alloc_map (): %E");
}
}
void free_map () { if (map_map_) free (map_map_); }
DWORD find_empty (DWORD pages);
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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__off64_t map_map (__off64_t off, DWORD len);
BOOL unmap_map (caddr_t addr, DWORD len);
void fixup_map (void);
int access (char *address);
fhandler_base *alloc_fh ();
void free_fh (fhandler_base *fh);
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};
DWORD
mmap_record::find_empty (DWORD pages)
{
DWORD mapped_pages = PAGE_CNT (size_to_map_);
DWORD start;
if (pages > mapped_pages)
return (DWORD)-1;
for (start = 0; start <= mapped_pages - pages; ++start)
if (!MAP_ISSET (start))
{
DWORD cnt;
for (cnt = 0; cnt < pages; ++cnt)
if (MAP_ISSET (start + cnt))
break;
if (cnt >= pages)
return start;
}
return (DWORD)-1;
}
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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__off64_t
mmap_record::map_map (__off64_t off, DWORD len)
{
DWORD prot, old_prot;
switch (access_mode_)
{
case FILE_MAP_WRITE:
prot = PAGE_READWRITE;
break;
case FILE_MAP_READ:
prot = PAGE_READONLY;
break;
default:
prot = PAGE_WRITECOPY;
break;
}
debug_printf ("map_map (fd=%d, off=%D, len=%d)", fdesc_, off, len);
len = PAGE_CNT (len);
if (fdesc_ == -1 && !off)
{
off = find_empty (len);
if (off != (DWORD)-1)
{
if (wincap.virtual_protect_works_on_shared_pages ()
&& !VirtualProtect (base_address_ + off * getpagesize (),
len * getpagesize (), prot, &old_prot))
{
__seterrno ();
return (__off64_t)-1;
}
while (len-- > 0)
MAP_SET (off + len);
return off * getpagesize ();
}
return 0L;
}
off -= offset_;
DWORD start = off / getpagesize ();
if (wincap.virtual_protect_works_on_shared_pages ()
&& !VirtualProtect (base_address_ + start * getpagesize (),
len * getpagesize (), prot, &old_prot))
{
__seterrno ();
return (__off64_t)-1;
}
for (; len-- > 0; ++start)
MAP_SET (start);
return off;
}
BOOL
mmap_record::unmap_map (caddr_t addr, DWORD len)
{
DWORD old_prot;
DWORD off = addr - base_address_;
off /= getpagesize ();
len = PAGE_CNT (len);
if (wincap.virtual_protect_works_on_shared_pages ()
&& !VirtualProtect (base_address_ + off * getpagesize (),
len * getpagesize (), PAGE_NOACCESS, &old_prot))
syscall_printf ("-1 = unmap_map (): %E");
for (; len-- > 0; ++off)
MAP_CLR (off);
/* Return TRUE if all pages are free'd which may result in unmapping
the whole chunk. */
for (len = MAPSIZE (PAGE_CNT (size_to_map_)); len > 0; )
if (map_map_[--len])
return FALSE;
return TRUE;
}
void
mmap_record::fixup_map ()
{
if (!wincap.virtual_protect_works_on_shared_pages ())
return;
DWORD prot, old_prot;
switch (access_mode_)
{
case FILE_MAP_WRITE:
prot = PAGE_READWRITE;
break;
case FILE_MAP_READ:
prot = PAGE_READONLY;
break;
default:
prot = PAGE_WRITECOPY;
break;
}
for (DWORD off = PAGE_CNT (size_to_map_); off > 0; --off)
VirtualProtect (base_address_ + off * getpagesize (),
getpagesize (),
MAP_ISSET (off - 1) ? prot : PAGE_NOACCESS,
&old_prot);
}
int
mmap_record::access (char *address)
{
if (address < base_address_ || address >= base_address_ + size_to_map_)
return 0;
DWORD off = (address - base_address_) / getpagesize ();
return MAP_ISSET (off);
}
static fhandler_disk_file fh_paging_file;
fhandler_base *
mmap_record::alloc_fh ()
{
if (get_fd () == -1)
{
fh_paging_file.set_io_handle (INVALID_HANDLE_VALUE);
return &fh_paging_file;
}
/* The file descriptor could have been closed or, even
worse, could have been reused for another file before
the call to fork(). This requires creating a fhandler
of the correct type to be sure to call the method of the
correct class. */
return cygheap->fdtab.build_fhandler (-1, get_device ());
}
void
mmap_record::free_fh (fhandler_base *fh)
{
if (get_fd () != -1)
cfree (fh);
}
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class list {
public:
mmap_record *recs;
int nrecs, maxrecs;
int fd;
DWORD hash;
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list ();
~list ();
mmap_record *add_record (mmap_record r);
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void erase (int i);
void erase ();
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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mmap_record *match (__off64_t off, DWORD len);
long match (caddr_t addr, DWORD len, long start);
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};
list::list ()
: nrecs (0), maxrecs (10), fd (0), hash (0)
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{
recs = (mmap_record *) malloc (10 * sizeof (mmap_record));
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}
list::~list ()
{
for (mmap_record *rec = recs; nrecs-- > 0; ++rec)
rec->free_map ();
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free (recs);
}
mmap_record *
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list::add_record (mmap_record r)
{
if (nrecs == maxrecs)
{
maxrecs += 5;
recs = (mmap_record *) realloc (recs, maxrecs * sizeof (mmap_record));
}
recs[nrecs] = r;
recs[nrecs].alloc_map ();
return recs + nrecs++;
}
/* Used in mmap() */
mmap_record *
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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list::match (__off64_t off, DWORD len)
{
if (fd == -1 && !off)
{
len = PAGE_CNT (len);
for (int i = 0; i < nrecs; ++i)
if (recs[i].find_empty (len) != (DWORD)-1)
return recs + i;
}
else
{
for (int i = 0; i < nrecs; ++i)
if (off >= recs[i].get_offset ()
&& off + len <= recs[i].get_offset ()
+ (PAGE_CNT (recs[i].get_size ()) * getpagesize ()))
return recs + i;
}
return NULL;
}
/* Used in munmap() */
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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long
list::match (caddr_t addr, DWORD len, __off32_t start)
{
for (int i = start + 1; i < nrecs; ++i)
if (addr >= recs[i].get_address ()
&& addr + len <= recs[i].get_address ()
+ (PAGE_CNT (recs[i].get_size ()) * getpagesize ()))
return i;
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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return -1;
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}
void
list::erase (int i)
{
recs[i].free_map ();
for (; i < nrecs-1; i++)
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recs[i] = recs[i+1];
nrecs--;
}
void
list::erase ()
{
erase (nrecs-1);
}
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class map {
public:
list **lists;
int nlists, maxlists;
map ();
~map ();
list *get_list_by_fd (int fd);
list *add_list (list *l, int fd);
void erase (int i);
};
map::map ()
{
lists = (list **) malloc (10 * sizeof (list *));
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nlists = 0;
maxlists = 10;
}
map::~map ()
{
free (lists);
}
list *
map::get_list_by_fd (int fd)
{
int i;
for (i=0; i<nlists; i++)
#if 0 /* The fd isn't sufficient since it could already be another file. */
if (lists[i]->fd == fd
#else /* so we use the name hash value to identify the file unless
it's not an anonymous mapping. */
if ((fd == -1 && lists[i]->fd == -1)
|| (fd != -1 && lists[i]->hash == cygheap->fdtab[fd]->get_namehash ()))
#endif
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return lists[i];
return 0;
}
list *
map::add_list (list *l, int fd)
{
l->fd = fd;
if (fd != -1)
l->hash = cygheap->fdtab[fd]->get_namehash ();
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if (nlists == maxlists)
{
maxlists += 5;
lists = (list **) realloc (lists, maxlists * sizeof (list *));
}
lists[nlists++] = l;
return lists[nlists-1];
}
void
map::erase (int i)
{
for (; i < nlists-1; i++)
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lists[i] = lists[i+1];
nlists--;
}
/*
* Code to keep a record of all mmap'ed areas in a process.
* Needed to duplicate tham in a child of fork().
* mmap_record classes are kept in an STL list in an STL map, keyed
* by file descriptor. This is *NOT* duplicated accross a fork(), it
* needs to be specially handled by the fork code.
*/
static map *mmapped_areas;
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extern "C"
caddr_t
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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mmap64 (caddr_t addr, size_t len, int prot, int flags, int fd, __off64_t off)
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{
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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syscall_printf ("addr %x, len %d, prot %x, flags %x, fd %d, off %D",
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addr, len, prot, flags, fd, off);
static DWORD granularity;
if (!granularity)
{
SYSTEM_INFO si;
GetSystemInfo (&si);
granularity = si.dwAllocationGranularity;
}
/* Error conditions according to SUSv2 */
if (off % getpagesize ()
|| (!(flags & MAP_SHARED) && !(flags & MAP_PRIVATE))
|| ((flags & MAP_SHARED) && (flags & MAP_PRIVATE))
|| ((flags & MAP_FIXED) && ((DWORD)addr % granularity))
|| !len)
{
set_errno (EINVAL);
syscall_printf ("-1 = mmap(): EINVAL");
return MAP_FAILED;
}
SetResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
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if (mmapped_areas == NULL)
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{
/* First mmap call, create STL map */
mmapped_areas = new map;
if (mmapped_areas == NULL)
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{
set_errno (ENOMEM);
syscall_printf ("-1 = mmap(): ENOMEM");
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return MAP_FAILED;
}
}
if (flags & MAP_ANONYMOUS)
fd = -1;
/* Map always in multipliers of `granularity'-sized chunks. */
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
__off64_t gran_off = off & ~(granularity - 1);
DWORD gran_len = howmany (off + len, granularity) * granularity - gran_off;
fhandler_base *fh;
caddr_t base = addr;
HANDLE h;
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if (fd != -1)
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{
/* Ensure that fd is open */
cygheap_fdget cfd (fd);
if (cfd < 0)
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{
syscall_printf ("-1 = mmap(): EBADF");
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return MAP_FAILED;
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}
fh = cfd;
if (fh->get_device () == FH_DISK)
{
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
DWORD high;
DWORD low = GetFileSize (fh->get_handle (), &high);
__off64_t fsiz = ((__off64_t)high << 32) + low;
fsiz -= gran_off;
if (gran_len > fsiz)
gran_len = fsiz;
}
else if (fh->get_device () == FH_ZERO)
/* mmap /dev/zero is like MAP_ANONYMOUS. */
fd = -1;
}
if (fd == -1)
{
fh_paging_file.set_io_handle (INVALID_HANDLE_VALUE);
fh = &fh_paging_file;
}
list *l = mmapped_areas->get_list_by_fd (fd);
/* First check if this mapping matches into the chunk of another
already performed mapping. Only valid for MAP_ANON in a special
case of MAP_PRIVATE. */
if (l && fd == -1 && off == 0 && !(flags & MAP_FIXED))
{
mmap_record *rec;
if ((rec = l->match (off, len)) != NULL)
{
if ((off = rec->map_map (off, len)) == (__off64_t)-1)
{
syscall_printf ("-1 = mmap()");
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK|WRITE_LOCK, "mmap");
return MAP_FAILED;
}
caddr_t ret = rec->get_address () + off;
syscall_printf ("%x = mmap() succeeded", ret);
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return ret;
}
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}
DWORD access = (prot & PROT_WRITE) ? FILE_MAP_WRITE : FILE_MAP_READ;
/* copy-on-write doesn't work at all on 9x using anonymous maps.
Workaround: Anonymous mappings always use normal READ or WRITE
access and don't use named file mapping.
copy-on-write doesn't also work properly on 9x with real files.
While the changes are not propagated to the file, they are
visible to other processes sharing the same file mapping object.
Workaround: Don't use named file mapping. That should work since
2001-11-05 14:09:15 +08:00
sharing file mappings only works reliable using named
file mapping on 9x.
*/
if ((flags & MAP_PRIVATE)
&& (wincap.has_working_copy_on_write () || fd != -1))
access = FILE_MAP_COPY;
h = fh->mmap (&base, gran_len, access, flags, gran_off);
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if (h == INVALID_HANDLE_VALUE)
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{
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return MAP_FAILED;
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}
/* Now we should have a successfully mmapped area.
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Need to save it so forked children can reproduce it.
*/
if (fd == -1)
gran_len = PAGE_CNT (gran_len) * getpagesize ();
mmap_record mmap_rec (fd, h, access, gran_off, gran_len, base);
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/* Get list of mmapped areas for this fd, create a new one if
one does not exist yet.
*/
if (l == 0)
{
/* Create a new one */
l = new list;
if (l == 0)
{
fh->munmap (h, base, gran_len);
set_errno (ENOMEM);
syscall_printf ("-1 = mmap(): ENOMEM");
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return MAP_FAILED;
}
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l = mmapped_areas->add_list (l, fd);
}
/* Insert into the list */
mmap_record *rec = l->add_record (mmap_rec);
if ((off = rec->map_map (off, len)) == (__off64_t)-1)
{
fh->munmap (h, base, gran_len);
l->erase ();
syscall_printf ("-1 = mmap()");
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return MAP_FAILED;
}
caddr_t ret = rec->get_address () + off;
syscall_printf ("%x = mmap() succeeded", ret);
ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
return ret;
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}
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
extern "C"
caddr_t
mmap (caddr_t addr, size_t len, int prot, int flags, int fd, __off32_t off)
{
return mmap64 (addr, len, prot, flags, fd, (__off64_t)off);
}
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/* munmap () removes an mmapped area. It insists that base area
requested is the same as that mmapped, error if not. */
extern "C"
int
munmap (caddr_t addr, size_t len)
{
syscall_printf ("munmap (addr %x, len %d)", addr, len);
/* Error conditions according to SUSv2 */
if (((DWORD)addr % getpagesize ()) || !len)
{
set_errno (EINVAL);
syscall_printf ("-1 = munmap(): Invalid parameters");
return -1;
}
SetResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "munmap");
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/* Check if a mmap'ed area was ever created */
if (mmapped_areas == NULL)
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{
syscall_printf ("-1 = munmap(): mmapped_areas == NULL");
2000-02-18 03:38:33 +08:00
set_errno (EINVAL);
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "munmap");
2000-02-18 03:38:33 +08:00
return -1;
}
/* Iterate through the map, looking for the mmapped area.
Error if not found. */
for (int it = 0; it < mmapped_areas->nlists; ++it)
2000-02-18 03:38:33 +08:00
{
list *l = mmapped_areas->lists[it];
if (l)
2000-02-18 03:38:33 +08:00
{
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
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long li = -1;
if ((li = l->match(addr, len, li)) >= 0)
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{
mmap_record *rec = l->recs + li;
if (rec->unmap_map (addr, len))
{
fhandler_base *fh = rec->alloc_fh ();
fh->munmap (rec->get_handle (), addr, len);
rec->free_fh (fh);
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/* Delete the entry. */
l->erase (li);
}
syscall_printf ("0 = munmap(): %x", addr);
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "munmap");
return 0;
}
}
}
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set_errno (EINVAL);
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syscall_printf ("-1 = munmap(): EINVAL");
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "munmap");
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return -1;
}
/* Sync file with memory. Ignore flags for now. */
extern "C"
int
msync (caddr_t addr, size_t len, int flags)
{
syscall_printf ("addr = %x, len = %d, flags = %x",
addr, len, flags);
/* However, check flags for validity. */
if ((flags & ~(MS_ASYNC | MS_SYNC | MS_INVALIDATE))
|| ((flags & MS_ASYNC) && (flags & MS_SYNC)))
{
syscall_printf ("-1 = msync(): Invalid flags");
set_errno (EINVAL);
return -1;
}
SetResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "msync");
/* Check if a mmap'ed area was ever created */
if (mmapped_areas == NULL)
{
syscall_printf ("-1 = msync(): mmapped_areas == NULL");
set_errno (EINVAL);
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "msync");
return -1;
}
/* Iterate through the map, looking for the mmapped area.
Error if not found. */
for (int it = 0; it < mmapped_areas->nlists; ++it)
{
list *l = mmapped_areas->lists[it];
if (l != 0)
{
for (int li = 0; li < l->nrecs; ++li)
{
mmap_record *rec = l->recs + li;
if (rec->access (addr))
{
/* Check whole area given by len. */
for (DWORD i = getpagesize (); i < len; ++i)
if (!rec->access (addr + i))
goto invalid_address_range;
fhandler_base *fh = rec->alloc_fh ();
int ret = fh->msync (rec->get_handle (), addr, len, flags);
rec->free_fh (fh);
if (ret)
syscall_printf ("%d = msync(): %E", ret);
else
syscall_printf ("0 = msync()");
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "msync");
return 0;
}
}
}
}
invalid_address_range:
/* SUSv2: Return code if indicated memory was not mapped is ENOMEM. */
set_errno (ENOMEM);
syscall_printf ("-1 = msync(): ENOMEM");
ReleaseResourceLock (LOCK_MMAP_LIST, WRITE_LOCK | READ_LOCK, "msync");
return -1;
}
/*
* Base implementation:
*
* `mmap' returns ENODEV as documented in SUSv2.
* In contrast to the global function implementation, the member function
* `mmap' has to return the mapped base address in `addr' and the handle to
* the mapping object as return value. In case of failure, the fhandler
* mmap has to close that handle by itself and return INVALID_HANDLE_VALUE.
*
* `munmap' and `msync' get the handle to the mapping object as first parameter
* additionally.
*/
HANDLE
fhandler_base::mmap (caddr_t *addr, size_t len, DWORD access,
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
int flags, __off64_t off)
{
set_errno (ENODEV);
return INVALID_HANDLE_VALUE;
}
int
fhandler_base::munmap (HANDLE h, caddr_t addr, size_t len)
{
set_errno (ENODEV);
return -1;
}
int
fhandler_base::msync (HANDLE h, caddr_t addr, size_t len, int flags)
{
set_errno (ENODEV);
return -1;
}
BOOL
fhandler_base::fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
DWORD size, void *address)
{
set_errno (ENODEV);
return -1;
}
/* Implementation for disk files. */
HANDLE
fhandler_disk_file::mmap (caddr_t *addr, size_t len, DWORD access,
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
int flags, __off64_t off)
{
DWORD protect;
if (access & FILE_MAP_COPY)
protect = PAGE_WRITECOPY;
else if (access & FILE_MAP_WRITE)
protect = PAGE_READWRITE;
else
protect = PAGE_READONLY;
HANDLE h;
/* On 9x/ME try first to open the mapping by name when opening a
shared file object. This is needed since 9x/ME only shares
objects between processes by name. What a mess... */
if (wincap.share_mmaps_only_by_name ()
&& get_handle () != INVALID_HANDLE_VALUE
&& !(access & FILE_MAP_COPY))
{
/* Grrr, the whole stuff is just needed to try to get a reliable
mapping of the same file. Even that uprising isn't bullet
proof but it does it's best... */
char namebuf[MAX_PATH];
cygwin_conv_to_full_posix_path (get_name (), namebuf);
for (int i = strlen (namebuf) - 1; i >= 0; --i)
namebuf[i] = cyg_tolower (namebuf [i]);
debug_printf ("named sharing");
if (!(h = OpenFileMapping (access, TRUE, namebuf)))
h = CreateFileMapping (get_handle (), &sec_none, protect, 0, 0, namebuf);
}
else
h = CreateFileMapping (get_handle (), &sec_none, protect, 0,
get_handle () == INVALID_HANDLE_VALUE ? len : 0,
NULL);
if (!h)
{
__seterrno ();
syscall_printf ("-1 = mmap(): CreateFileMapping failed with %E");
return INVALID_HANDLE_VALUE;
}
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
DWORD high = off >> 32, low = off & 0xffffffff;
void *base = MapViewOfFileEx (h, access, high, low, len,
(flags & MAP_FIXED) ? *addr : NULL);
* cygwin.din (fstat64): New symbol. (ftruncate64): Ditto. (lseek64): Ditto. (lstat64): Ditto. (mmap64): Ditto. (seekdir64): Ditto. (stat64): Ditto. (telldir64): Ditto. (truncate64): Ditto. * dir.cc (telldir64): New function. (telldir): Call telldir64(). (seekdir64): New function. (seekdir): Call seekdir64(). * fhandler.h: Redefine all methods using __off32_t to use __off64_t. * fhandler.cc: Use __off64_t and struct __stat64 throughout. * fhandler_clipboard.cc: Ditto. * fhandler_disk_file.cc: Ditto. * fhandler_dsp.cc: Ditto. * fhandler_floppy.cc: Ditto. * fhandler_mem.cc: Ditto. * fhandler_random.cc: Ditto. * fhandler_socket.cc: Ditto. * fhandler_tape.cc: Ditto. * fhandler_zero.cc: Ditto. * pipe.cc: Ditto. * glob.c: Ditto, call lstat64 and stat64 in Cygwin. * mmap.cc: Use __off64_t throughout. (mmap64): New function. * sec_acl.cc (acl_worker): Use struct __stat64, call stat64 and lstat64. * syscalls.cc (lseek64): New function. (stat64_to_stat32): Ditto. (fstat64): Ditto. (stat64): Ditto. (lstat64): Ditto. (ftruncate64): Ditto. (truncate64): Ditto. (_fstat): Call fstat64. (_stat): Call stat64. (cygwin_lstat): Rename to avoid declaration problem. Call lstat64. (stat_worker): Use struct __stat64. (access): Ditto. (ftruncate): Call ftruncate64. (truncate): Call truncate64. * wincap.cc: Set flag has_64bit_file_access appropriately. * wincap.h: Add flag has_64bit_file_access. * winsup.h (ILLEGAL_SEEK): Define as __off64_t. (stat_dev): Declare using struct __stat64. (stat_worker): Ditto. * include/cygwin/stat.h (struct __stat32): Define if compiling Cygwin. (struct __stat64): Ditto. (struct stat): Revert definition with explicitly sized datatypes. Eliminate sized field names. * include/cygwin/types.h (blksize_t): New type. (__blkcnt32_t): Ditto. (__blkcnt64_t): Ditto. (blkcnt_t): Ditto.
2002-02-26 01:47:51 +08:00
debug_printf ("%x = MapViewOfFileEx (h:%x, access:%x, 0, off:%D, len:%d, addr:%x)", base, h, access, off, len, (flags & MAP_FIXED) ? *addr : NULL);
if (!base || ((flags & MAP_FIXED) && base != *addr))
{
if (!base)
{
__seterrno ();
syscall_printf ("-1 = mmap(): MapViewOfFileEx failed with %E");
}
else
{
set_errno (EINVAL);
syscall_printf ("-1 = mmap(): address shift with MAP_FIXED given");
}
CloseHandle (h);
return INVALID_HANDLE_VALUE;
}
*addr = (caddr_t) base;
return h;
}
int
fhandler_disk_file::munmap (HANDLE h, caddr_t addr, size_t len)
{
UnmapViewOfFile (addr);
CloseHandle (h);
return 0;
}
int
fhandler_disk_file::msync (HANDLE h, caddr_t addr, size_t len, int flags)
{
2000-02-18 03:38:33 +08:00
if (FlushViewOfFile (addr, len) == 0)
{
__seterrno ();
return -1;
}
return 0;
}
BOOL
fhandler_disk_file::fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
DWORD size, void *address)
{
/* Re-create the MapViewOfFileEx call */
void *base = MapViewOfFileEx (h, access, 0, offset, size, address);
if (base != address)
{
MEMORY_BASIC_INFORMATION m;
(void) VirtualQuery (address, &m, sizeof (m));
system_printf ("requested %p != %p mem alloc base %p, state %p, size %d, %E",
address, base, m.AllocationBase, m.State, m.RegionSize);
}
return base == address;
}
2000-02-18 03:38:33 +08:00
/* Set memory protection */
extern "C"
int
mprotect (caddr_t addr, size_t len, int prot)
{
DWORD old_prot;
DWORD new_prot = 0;
syscall_printf ("mprotect (addr %x, len %d, prot %x)", addr, len, prot);
if (prot == PROT_NONE)
new_prot = PAGE_NOACCESS;
else
{
switch (prot)
{
case PROT_READ | PROT_WRITE | PROT_EXEC:
new_prot = PAGE_EXECUTE_READWRITE;
break;
case PROT_READ | PROT_WRITE:
new_prot = PAGE_READWRITE;
break;
case PROT_READ | PROT_EXEC:
new_prot = PAGE_EXECUTE_READ;
break;
case PROT_READ:
new_prot = PAGE_READONLY;
break;
default:
syscall_printf ("-1 = mprotect (): invalid prot value");
set_errno (EINVAL);
return -1;
}
}
if (VirtualProtect (addr, len, new_prot, &old_prot) == 0)
{
__seterrno ();
syscall_printf ("-1 = mprotect (): %E");
return -1;
}
syscall_printf ("0 = mprotect ()");
return 0;
}
/*
* Call to re-create all the file mappings in a forked
* child. Called from the child in initialization. At this
* point we are passed a valid mmapped_areas map, and all the
2000-02-18 03:38:33 +08:00
* HANDLE's are valid for the child, but none of the
* mapped areas are in our address space. We need to iterate
* through the map, doing the MapViewOfFile calls.
*/
int __stdcall
fixup_mmaps_after_fork (HANDLE parent)
2000-02-18 03:38:33 +08:00
{
debug_printf ("recreate_mmaps_after_fork, mmapped_areas %p", mmapped_areas);
2000-02-18 03:38:33 +08:00
/* Check if a mmapped area was ever created */
if (mmapped_areas == NULL)
2000-02-18 03:38:33 +08:00
return 0;
/* Iterate through the map */
for (int it = 0; it < mmapped_areas->nlists; ++it)
2000-02-18 03:38:33 +08:00
{
list *l = mmapped_areas->lists[it];
2000-02-18 03:38:33 +08:00
if (l != 0)
{
int li;
for (li = 0; li < l->nrecs; ++li)
{
mmap_record *rec = l->recs + li;
2000-02-18 03:38:33 +08:00
debug_printf ("fd %d, h %x, access %x, offset %d, size %d, address %p",
rec->get_fd (), rec->get_handle (), rec->get_access (),
rec->get_offset (), rec->get_size (), rec->get_address ());
fhandler_base *fh = rec->alloc_fh ();
BOOL ret = fh->fixup_mmap_after_fork (rec->get_handle (),
rec->get_access (),
rec->get_offset (),
rec->get_size (),
rec->get_address ());
rec->free_fh (fh);
if (!ret)
return -1;
if (rec->get_access () == FILE_MAP_COPY)
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
2002-05-28 09:55:40 +08:00
{
for (char *address = rec->get_address ();
address < rec->get_address () + rec->get_size ();
address += getpagesize ())
if (rec->access (address)
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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&& !ReadProcessMemory (parent, address, address,
getpagesize (), NULL))
{
system_printf ("ReadProcessMemory failed for MAP_PRIVATE address %p, %E",
rec->get_address ());
return -1;
}
* autoload.cc (LoadFuncEx): Define via new LoadFuncEx2 macro. (LoadFuncEx2): Adapted from LoadFuncEx. Provides control of return value for nonexistent function. (NtQueryObject): Declare. (IsDebuggerPresent): Declare via LoadFuncEx2 and always return true if not available. * debug.h (being_debugged): Just rely on IsDebuggerPresent return value. * dtable.cc (handle_to_fn): New function. (dtable::init_std_file_from_handle): Attempt to derive std handle's name via handle_to_fn. (dtable::build_fhandler_from_name): Fill in what we can in path_conv structure when given a handle and path doesn't exist. * fhandler.cc (fhandler_base::open): Don't set the file pointer here. Use pc->exists () to determine if file exists rather than calling GetFileAttributes again. * fhandler.h (fhandler_base::exec_state_isknown): New method. (fhandler_base::fstat_helper): Add extra arguments to declaration. (fhandler_base::fstat_by_handle): Declare new method. (fhandler_base::fstat_by_name): Declare new method. * fhandler_disk_file (num_entries): Make __stdcall. (fhandler_base::fstat_by_handle): Define new method. (fhandler_base::fstat_by_name): Define new method. (fhandler_base:fstat): Call fstat_by_{handle,name} as appropriate. (fhandler_disk_file::fstat_helper): Accept extra arguments for filling out stat structure. Move handle or name specific stuff to new methods above. (fhandler_disk_file::open): Use real_path->exists rather than calling GetFileAttributes again. * ntdll.h (FILE_NAME_INFORMATION): Define new structure. (OBJECT_INFORMATION_CLASS): Partially define new enum. (OBJECT_NAME_INFORMATION): Define new structure. (NtQueryInformationFile): New declaration. (NtQueryObject): New declaration. * path.cc (path_conv::fillin): Define new method. * path.h (path_conv::fillin): Declare new method. (path_conv::drive_thpe): Rename from 'get_drive_type'. (path_conv::volser): Declare new method. (path_conv::volname): Declare new method. (path_conv::root_dir): Declare new method. * syscalls.cc (fstat64): Send real path_conv to fstat as second argument.
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}
rec->fixup_map ();
}
}
}
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debug_printf ("succeeded");
return 0;
}