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* shared.cc (offsets): Define as offsets relative to cygwin_hmodule 

instead of addresses.
	(off_addr): New macro.
	(open_shared): Use offsets array accordingly.  Remove unused code.
	* shared_info.h (cygwin_shared_address): Remove.
This commit is contained in:
Corinna Vinschen 2006-07-26 21:02:01 +00:00
parent 5faa48850f
commit a0bb355ffe
3 changed files with 23 additions and 24 deletions
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8
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,11 @@
2006-07-26 Corinna Vinschen <corinna@vinschen.de>
* shared.cc (offsets): Define as offsets relative to cygwin_hmodule
instead of addresses.
(off_addr): New macro.
(open_shared): Use offsets array accordingly. Remove unused code.
* shared_info.h (cygwin_shared_address): Remove.
2006-07-26 Corinna Vinschen <corinna@vinschen.de>
* cygheap.h (struct init_cygheap): Remove shared_h and mt_h members.

37
winsup/cygwin/shared.cc
View File

@ -49,20 +49,19 @@ shared_name (char *ret_buf, const char *str, int num)
#define page_const (65535)
#define pround(n) (((size_t) (n) + page_const) & ~page_const)
static char *offsets[] =
static ptrdiff_t offsets[] =
{
(char *) cygwin_shared_address
- pround (sizeof (user_info))
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
(char *) cygwin_shared_address
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
(char *) cygwin_shared_address
- pround (sizeof (_pinfo)),
(char *) cygwin_shared_address
- pround (sizeof (user_info))
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
- pround (sizeof (console_state))
- pround (sizeof (_pinfo)),
- pround (sizeof (_pinfo)),
0
};
#define off_addr(x) ((void *)((caddr_t) cygwin_hmodule + offsets[x]))
void * __stdcall
open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
shared_locations& m, PSECURITY_ATTRIBUTES psa, DWORD access)
@ -75,7 +74,7 @@ open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
addr = NULL;
else
{
addr = offsets[m];
addr = off_addr (m);
VirtualFree (addr, 0, MEM_RELEASE);
}
@ -118,7 +117,7 @@ open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
if (wincap.is_winnt ())
system_printf ("relocating shared object %s(%d) from %p to %p on Windows NT", name, n, addr, shared);
#endif
offsets[0] = NULL;
offsets[0] = 0;
}
if (!shared)
@ -126,22 +125,16 @@ open_shared (const char *name, int n, HANDLE& shared_h, DWORD size,
if (m == SH_USER_SHARED && offsets[0] && wincap.needs_memory_protection ())
{
unsigned delta = (char *) shared - offsets[0];
offsets[0] = (char *) shared;
ptrdiff_t delta = (caddr_t) shared - (caddr_t) off_addr (0);
offsets[0] = (caddr_t) shared - (caddr_t) cygwin_hmodule;
for (int i = SH_USER_SHARED + 1; i < SH_TOTAL_SIZE; i++)
{
unsigned size = offsets[i + 1] - offsets[i];
offsets[i] += delta;
if (!VirtualAlloc (offsets[i], size, MEM_RESERVE, PAGE_NOACCESS))
if (!VirtualAlloc (off_addr (i), size, MEM_RESERVE, PAGE_NOACCESS))
continue; /* oh well */
}
offsets[SH_TOTAL_SIZE] += delta;
#if 0
if (!child_proc_info && wincap.needs_memory_protection ())
for (DWORD s = 0x950000; s <= 0xa40000; s += 0x1000)
VirtualAlloc ((void *) s, 4, MEM_RESERVE, PAGE_NOACCESS);
#endif
}
debug_printf ("name %s, n %d, shared %p (wanted %p), h %p", mapname, n, shared, addr, shared_h);

2
winsup/cygwin/shared_info.h
View File

@ -184,8 +184,6 @@ void __stdcall memory_init ();
(((DWORD) ((p) + 1) + system_info.dwAllocationGranularity - 1) / \
system_info.dwAllocationGranularity)))
#define cygwin_shared_address ((void *) 0x61000000)
#ifdef _FHANDLER_H_
struct console_state
{