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ntdll: Add a Wine-specific NtQueryVirtualMemory() query to retrieve the Unix call table. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-08-10 17:56:14 +02:00
parent c29f650474
commit d91d05b80a
2 changed files with 43 additions and 2 deletions
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41
dlls/ntdll/unix/virtual.c
View File

@ -657,6 +657,29 @@ void *get_builtin_so_handle( void *module )
}
/***********************************************************************
* get_builtin_unix_funcs
*/
NTSTATUS get_builtin_unix_funcs( void *module, BOOL wow, void **funcs )
{
const char *ptr_name = wow ? "__wine_unix_call_wow64_funcs" : "__wine_unix_call_funcs";
sigset_t sigset;
NTSTATUS status = STATUS_DLL_NOT_FOUND;
struct builtin_module *builtin;
server_enter_uninterrupted_section( &virtual_mutex, &sigset );
LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry )
{
if (builtin->module != module) continue;
*funcs = dlsym( builtin->unix_handle, ptr_name );
status = STATUS_SUCCESS;
break;
}
server_leave_uninterrupted_section( &virtual_mutex, &sigset );
return status;
}
/***********************************************************************
* get_builtin_unix_info
*/
@ -4289,6 +4312,8 @@ NTSTATUS WINAPI NtQueryVirtualMemory( HANDLE process, LPCVOID addr,
MEMORY_INFORMATION_CLASS info_class,
PVOID buffer, SIZE_T len, SIZE_T *res_len )
{
NTSTATUS status;
TRACE("(%p, %p, info_class=%d, %p, %ld, %p)\n",
process, addr, info_class, buffer, len, res_len);
@ -4311,13 +4336,27 @@ NTSTATUS WINAPI NtQueryVirtualMemory( HANDLE process, LPCVOID addr,
if (handle)
{
NTSTATUS status = get_builtin_init_funcs( handle, buffer, len, res_len );
status = get_builtin_init_funcs( handle, buffer, len, res_len );
release_builtin_module( module );
return status;
}
}
return STATUS_INVALID_HANDLE;
case MemoryWineUnixFuncs:
case MemoryWineUnixWow64Funcs:
if (len != sizeof(UINT64)) return STATUS_INFO_LENGTH_MISMATCH;
if (process == GetCurrentProcess())
{
void *module = (void *)addr;
void *funcs = NULL;
status = get_builtin_unix_funcs( module, info_class == MemoryWineUnixWow64Funcs, &funcs );
if (!status) *(UINT64 *)buffer = (UINT_PTR)funcs;
return status;
}
return STATUS_INVALID_HANDLE;
default:
FIXME("(%p,%p,info_class=%d,%p,%ld,%p) Unknown information class\n",
process, addr, info_class, buffer, len, res_len);

4
include/winternl.h
View File

@ -1919,7 +1919,9 @@ typedef enum _MEMORY_INFORMATION_CLASS {
MemoryBasicInformationCapped,
MemoryPhysicalContiguityInformation,
#ifdef __WINESRC__
MemoryWineImageInitFuncs = 1000
MemoryWineImageInitFuncs = 1000,
MemoryWineUnixFuncs,
MemoryWineUnixWow64Funcs,
#endif
} MEMORY_INFORMATION_CLASS;