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Throughout, change check for running under Windows NT to 'iswinnt'.

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* dcrt0.cc (set_os_type): Set 'iswinnt' appropriately.
* cygheap.cc (init_cheap): Revert to using VirtualAlloc for allocating cygheap.
(cygheap_setup_for_child_cleanup): New function.  Standard function to call
after calling CreateProcess to cleanup cygheap info passed to child.
(cygheap_fixup_in_child): Copy cygheap from shared memory into allocated space
under Windows 9x or if can't relocate shared space under NT.
* cygheap.h: Declare new function.
* spawn.cc (spawn_guts): Use cygheap_fixup_in_child.
* fork.cc (fork_parent): Ditto.
* winsup.h: Declare iswinnt.
This commit is contained in:
Christopher Faylor
2001-08-04 21:10:52 +00:00
parent 17195d08bc
commit e5ba4c060e
27 changed files with 105 additions and 76 deletions
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16
winsup/cygwin/mmap.cc
View File

@@ -83,7 +83,7 @@ class mmap_record
/* Allocate one bit per page */
map_map_ = (DWORD *) calloc (MAPSIZE(PAGE_CNT (size_to_map_)),
sizeof (DWORD));
if (os_being_run == winNT)
if (iswinnt)
{
DWORD old_prot;
if (!VirtualProtect (base_address_, size_to_map_,
@@ -144,7 +144,7 @@ mmap_record::map_map (DWORD off, DWORD len)
off = find_empty (len);
if (off != (DWORD)-1)
{
if (os_being_run == winNT
if (iswinnt
&& !VirtualProtect (base_address_ + off * getpagesize (),
len * getpagesize (), prot, &old_prot))
syscall_printf ("-1 = map_map (): %E");
@@ -157,7 +157,7 @@ mmap_record::map_map (DWORD off, DWORD len)
}
off -= offset_;
DWORD start = off / getpagesize ();
if (os_being_run == winNT
if (iswinnt
&& !VirtualProtect (base_address_ + start * getpagesize (),
len * getpagesize (), prot, &old_prot))
syscall_printf ("-1 = map_map (): %E");
@@ -174,7 +174,7 @@ mmap_record::unmap_map (caddr_t addr, DWORD len)
DWORD off = addr - base_address_;
off /= getpagesize ();
len = PAGE_CNT (len);
if (os_being_run == winNT
if (iswinnt
&& !VirtualProtect (base_address_ + off * getpagesize (),
len * getpagesize (), PAGE_NOACCESS, &old_prot))
syscall_printf ("-1 = unmap_map (): %E");
@@ -192,7 +192,7 @@ mmap_record::unmap_map (caddr_t addr, DWORD len)
void
mmap_record::fixup_map ()
{
if (os_being_run != winNT)
if (!iswinnt)
return;
DWORD prot, old_prot;
@@ -426,7 +426,7 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off)
/* copy-on-write doesn't work correctly on 9x. To have at least read
access we use *READ mapping on 9x when appropriate. It will still
fail when needing write access, though. */
if ((flags & MAP_PRIVATE) && (os_being_run == winNT || (prot & ~PROT_READ)))
if ((flags & MAP_PRIVATE) && (iswinnt || (prot & ~PROT_READ)))
access = FILE_MAP_COPY;
SetResourceLock(LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
@@ -437,7 +437,7 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off)
* CV: This assumption isn't correct. See Microsoft Platform SDK, Memory,
* description of call `MapViewOfFileEx'.
*/
if ((os_being_run != winNT) && (flags & MAP_FIXED))
if ((!iswinnt) && (flags & MAP_FIXED))
{
set_errno (EINVAL);
syscall_printf ("-1 = mmap(): win95 and MAP_FIXED");
@@ -745,7 +745,7 @@ fhandler_disk_file::mmap (caddr_t *addr, size_t len, DWORD access,
/* 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 (os_being_run != winNT
if (!iswinnt
&& get_handle () != INVALID_HANDLE_VALUE
&& get_device () == FH_DISK
&& !(access & FILE_MAP_COPY))