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/*
* NT threads support
*
* Copyright 1996, 2003 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdarg.h>
#include <limits.h>
#include <sys/types.h>
#define NONAMELESSUNION
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "winternl.h"
#include "wine/debug.h"
#include "ntdll_misc.h"
#include "ddk/wdm.h"
#include "wine/exception.h"
WINE_DEFAULT_DEBUG_CHANNEL(thread);
WINE_DECLARE_DEBUG_CHANNEL(relay);
WINE_DECLARE_DEBUG_CHANNEL(pid);
WINE_DECLARE_DEBUG_CHANNEL(timestamp);
struct _KUSER_SHARED_DATA *user_shared_data = (void *)0x7ffe0000;
struct debug_info
{
unsigned int str_pos; /* current position in strings buffer */
unsigned int out_pos; /* current position in output buffer */
char strings[1020]; /* buffer for temporary strings */
char output[1020]; /* current output line */
};
C_ASSERT( sizeof(struct debug_info) == 0x800 );
static int nb_debug_options;
static struct __wine_debug_channel *debug_options;
static inline struct debug_info *get_info(void)
{
#ifdef _WIN64
return (struct debug_info *)((TEB32 *)((char *)NtCurrentTeb() + 0x2000) + 1);
#else
return (struct debug_info *)(NtCurrentTeb() + 1);
#endif
}
static void init_options(void)
{
unsigned int offset = page_size * (sizeof(void *) / 4);
debug_options = (struct __wine_debug_channel *)((char *)NtCurrentTeb()->Peb + offset);
while (debug_options[nb_debug_options].name[0]) nb_debug_options++;
}
/* add a string to the output buffer */
static int append_output( struct debug_info *info, const char *str, size_t len )
{
if (len >= sizeof(info->output) - info->out_pos)
{
__wine_dbg_write( info->output, info->out_pos );
info->out_pos = 0;
ERR_(thread)( "debug buffer overflow:\n" );
__wine_dbg_write( str, len );
RtlRaiseStatus( STATUS_BUFFER_OVERFLOW );
}
memcpy( info->output + info->out_pos, str, len );
info->out_pos += len;
return len;
}
/***********************************************************************
* __wine_dbg_get_channel_flags (NTDLL.@)
*
* Get the flags to use for a given channel, possibly setting them too in case of lazy init
*/
unsigned char __cdecl __wine_dbg_get_channel_flags( struct __wine_debug_channel *channel )
{
int min, max, pos, res;
unsigned char default_flags;
if (!debug_options) init_options();
min = 0;
max = nb_debug_options - 1;
while (min <= max)
{
pos = (min + max) / 2;
res = strcmp( channel->name, debug_options[pos].name );
if (!res) return debug_options[pos].flags;
if (res < 0) max = pos - 1;
else min = pos + 1;
}
/* no option for this channel */
default_flags = debug_options[nb_debug_options].flags;
if (channel->flags & (1 << __WINE_DBCL_INIT)) channel->flags = default_flags;
return default_flags;
}
/***********************************************************************
* __wine_dbg_strdup (NTDLL.@)
*/
const char * __cdecl __wine_dbg_strdup( const char *str )
{
struct debug_info *info = get_info();
unsigned int pos = info->str_pos;
size_t n = strlen( str ) + 1;
assert( n <= sizeof(info->strings) );
if (pos + n > sizeof(info->strings)) pos = 0;
info->str_pos = pos + n;
return memcpy( info->strings + pos, str, n );
}
/***********************************************************************
* __wine_dbg_header (NTDLL.@)
*/
int __cdecl __wine_dbg_header( enum __wine_debug_class cls, struct __wine_debug_channel *channel,
const char *function )
{
static const char * const classes[] = { "fixme", "err", "warn", "trace" };
struct debug_info *info = get_info();
char *pos = info->output;
if (!(__wine_dbg_get_channel_flags( channel ) & (1 << cls))) return -1;
/* only print header if we are at the beginning of the line */
if (info->out_pos) return 0;
if (TRACE_ON(timestamp))
{
ULONG ticks = NtGetTickCount();
pos += sprintf( pos, "%3u.%03u:", ticks / 1000, ticks % 1000 );
}
if (TRACE_ON(pid)) pos += sprintf( pos, "%04x:", GetCurrentProcessId() );
pos += sprintf( pos, "%04x:", GetCurrentThreadId() );
if (function && cls < ARRAY_SIZE( classes ))
pos += snprintf( pos, sizeof(info->output) - (pos - info->output), "%s:%s:%s ",
classes[cls], channel->name, function );
info->out_pos = pos - info->output;
return info->out_pos;
}
/***********************************************************************
* __wine_dbg_output (NTDLL.@)
*/
int __cdecl __wine_dbg_output( const char *str )
{
struct debug_info *info = get_info();
const char *end = strrchr( str, '\n' );
int ret = 0;
if (end)
{
ret += append_output( info, str, end + 1 - str );
__wine_dbg_write( info->output, info->out_pos );
info->out_pos = 0;
str = end + 1;
}
if (*str) ret += append_output( info, str, strlen( str ));
return ret;
}
/***********************************************************************
* RtlExitUserThread (NTDLL.@)
*/
void WINAPI RtlExitUserThread( ULONG status )
{
ULONG last;
NtQueryInformationThread( GetCurrentThread(), ThreadAmILastThread, &last, sizeof(last), NULL );
if (last) RtlExitUserProcess( status );
LdrShutdownThread();
for (;;) NtTerminateThread( GetCurrentThread(), status );
}
/***********************************************************************
* RtlUserThreadStart (NTDLL.@)
*/
#ifdef __i386__
__ASM_STDCALL_FUNC( RtlUserThreadStart, 8,
"movl %ebx,8(%esp)\n\t" /* arg */
"movl %eax,4(%esp)\n\t" /* entry */
"jmp " __ASM_NAME("call_thread_func") )
/* wrapper to call BaseThreadInitThunk */
extern void DECLSPEC_NORETURN call_thread_func_wrapper( void *thunk, PRTL_THREAD_START_ROUTINE entry, void *arg );
__ASM_GLOBAL_FUNC( call_thread_func_wrapper,
"pushl %ebp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
__ASM_CFI(".cfi_rel_offset %ebp,0\n\t")
"movl %esp,%ebp\n\t"
__ASM_CFI(".cfi_def_cfa_register %ebp\n\t")
"subl $4,%esp\n\t"
"andl $~0xf,%esp\n\t"
"xorl %ecx,%ecx\n\t"
"movl 12(%ebp),%edx\n\t"
"movl 16(%ebp),%eax\n\t"
"movl %eax,(%esp)\n\t"
"call *8(%ebp)" )
void DECLSPEC_HIDDEN call_thread_func( PRTL_THREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
call_thread_func_wrapper( pBaseThreadInitThunk, entry, arg );
}
__EXCEPT(call_unhandled_exception_filter)
{
NtTerminateProcess( GetCurrentProcess(), GetExceptionCode() );
}
__ENDTRY
}
#else /* __i386__ */
void WINAPI RtlUserThreadStart( PRTL_THREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
pBaseThreadInitThunk( 0, (LPTHREAD_START_ROUTINE)entry, arg );
}
__EXCEPT(call_unhandled_exception_filter)
{
NtTerminateProcess( GetCurrentProcess(), GetExceptionCode() );
}
__ENDTRY
}
#endif /* __i386__ */
/***********************************************************************
* RtlCreateUserThread (NTDLL.@)
*/
NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, SECURITY_DESCRIPTOR *descr,
BOOLEAN suspended, ULONG zero_bits,
SIZE_T stack_reserve, SIZE_T stack_commit,
PRTL_THREAD_START_ROUTINE start, void *param,
HANDLE *handle_ptr, CLIENT_ID *id )
{
ULONG flags = suspended ? THREAD_CREATE_FLAGS_CREATE_SUSPENDED : 0;
ULONG_PTR buffer[offsetof( PS_ATTRIBUTE_LIST, Attributes[2] ) / sizeof(ULONG_PTR)];
PS_ATTRIBUTE_LIST *attr_list = (PS_ATTRIBUTE_LIST *)buffer;
HANDLE handle, actctx;
TEB *teb;
ULONG ret;
NTSTATUS status;
CLIENT_ID client_id;
OBJECT_ATTRIBUTES attr;
attr_list->TotalLength = sizeof(buffer);
attr_list->Attributes[0].Attribute = PS_ATTRIBUTE_CLIENT_ID;
attr_list->Attributes[0].Size = sizeof(client_id);
attr_list->Attributes[0].ValuePtr = &client_id;
attr_list->Attributes[0].ReturnLength = NULL;
attr_list->Attributes[1].Attribute = PS_ATTRIBUTE_TEB_ADDRESS;
attr_list->Attributes[1].Size = sizeof(teb);
attr_list->Attributes[1].ValuePtr = &teb;
attr_list->Attributes[1].ReturnLength = NULL;
InitializeObjectAttributes( &attr, NULL, 0, NULL, descr );
RtlGetActiveActivationContext( &actctx );
if (actctx) flags |= THREAD_CREATE_FLAGS_CREATE_SUSPENDED;
status = NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, &attr, process, start, param,
flags, zero_bits, stack_commit, stack_reserve, attr_list );
if (!status)
{
if (actctx)
{
ULONG_PTR cookie;
RtlActivateActivationContextEx( 0, teb, actctx, &cookie );
if (!suspended) NtResumeThread( handle, &ret );
}
if (id) *id = client_id;
if (handle_ptr) *handle_ptr = handle;
else NtClose( handle );
}
if (actctx) RtlReleaseActivationContext( actctx );
return status;
}
/**********************************************************************
* RtlCreateUserStack (NTDLL.@)
*/
NTSTATUS WINAPI RtlCreateUserStack( SIZE_T commit, SIZE_T reserve, ULONG zero_bits,
SIZE_T commit_align, SIZE_T reserve_align, INITIAL_TEB *stack )
{
PROCESS_STACK_ALLOCATION_INFORMATION alloc;
NTSTATUS status;
TRACE("commit %#lx, reserve %#lx, zero_bits %u, commit_align %#lx, reserve_align %#lx, stack %p\n",
commit, reserve, zero_bits, commit_align, reserve_align, stack);
if (!commit_align || !reserve_align)
return STATUS_INVALID_PARAMETER;
if (!commit || !reserve)
{
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
if (!reserve) reserve = nt->OptionalHeader.SizeOfStackReserve;
if (!commit) commit = nt->OptionalHeader.SizeOfStackCommit;
}
reserve = (reserve + reserve_align - 1) & ~(reserve_align - 1);
commit = (commit + commit_align - 1) & ~(commit_align - 1);
if (reserve < commit) reserve = commit;
if (reserve < 0x100000) reserve = 0x100000;
reserve = (reserve + 0xffff) & ~0xffff; /* round to 64K boundary */
alloc.ReserveSize = reserve;
alloc.ZeroBits = zero_bits;
status = NtSetInformationProcess( GetCurrentProcess(), ProcessThreadStackAllocation,
&alloc, sizeof(alloc) );
if (!status)
{
void *addr = alloc.StackBase;
SIZE_T size = page_size;
NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 0, &size, MEM_COMMIT, PAGE_NOACCESS );
addr = (char *)alloc.StackBase + page_size;
NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 0, &size, MEM_COMMIT, PAGE_READWRITE | PAGE_GUARD );
addr = (char *)alloc.StackBase + 2 * page_size;
size = reserve - 2 * page_size;
NtAllocateVirtualMemory( GetCurrentProcess(), &addr, 0, &size, MEM_COMMIT, PAGE_READWRITE );
/* note: limit is lower than base since the stack grows down */
stack->OldStackBase = 0;
stack->OldStackLimit = 0;
stack->DeallocationStack = alloc.StackBase;
stack->StackBase = (char *)alloc.StackBase + reserve;
stack->StackLimit = (char *)alloc.StackBase + 2 * page_size;
}
return status;
}
/**********************************************************************
* RtlFreeUserStack (NTDLL.@)
*/
void WINAPI RtlFreeUserStack( void *stack )
{
SIZE_T size = 0;
TRACE("stack %p\n", stack);
NtFreeVirtualMemory( NtCurrentProcess(), &stack, &size, MEM_RELEASE );
}
/******************************************************************************
* RtlGetNtGlobalFlags (NTDLL.@)
*/
ULONG WINAPI RtlGetNtGlobalFlags(void)
{
return NtCurrentTeb()->Peb->NtGlobalFlag;
}
/******************************************************************************
* RtlPushFrame (NTDLL.@)
*/
void WINAPI RtlPushFrame( TEB_ACTIVE_FRAME *frame )
{
frame->Previous = NtCurrentTeb()->ActiveFrame;
NtCurrentTeb()->ActiveFrame = frame;
}
/******************************************************************************
* RtlPopFrame (NTDLL.@)
*/
void WINAPI RtlPopFrame( TEB_ACTIVE_FRAME *frame )
{
NtCurrentTeb()->ActiveFrame = frame->Previous;
}
/******************************************************************************
* RtlGetFrame (NTDLL.@)
*/
TEB_ACTIVE_FRAME * WINAPI RtlGetFrame(void)
{
return NtCurrentTeb()->ActiveFrame;
}
/***********************************************************************
* Fibers
***********************************************************************/
static GLOBAL_FLS_DATA fls_data = { { NULL }, { &fls_data.fls_list_head, &fls_data.fls_list_head } };
static RTL_CRITICAL_SECTION fls_section;
static RTL_CRITICAL_SECTION_DEBUG fls_critsect_debug =
{
0, 0, &fls_section,
{ &fls_critsect_debug.ProcessLocksList, &fls_critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": fls_section") }
};
static RTL_CRITICAL_SECTION fls_section = { &fls_critsect_debug, -1, 0, 0, 0, 0 };
#define MAX_FLS_DATA_COUNT 0xff0
static void lock_fls_data(void)
{
RtlEnterCriticalSection( &fls_section );
}
static void unlock_fls_data(void)
{
RtlLeaveCriticalSection( &fls_section );
}
static unsigned int fls_chunk_size( unsigned int chunk_index )
{
return 0x10 << chunk_index;
}
static unsigned int fls_index_from_chunk_index( unsigned int chunk_index, unsigned int index )
{
return 0x10 * ((1 << chunk_index) - 1) + index;
}
static unsigned int fls_chunk_index_from_index( unsigned int index, unsigned int *index_in_chunk )
{
unsigned int chunk_index = 0;
while (index >= fls_chunk_size( chunk_index ))
index -= fls_chunk_size( chunk_index++ );
*index_in_chunk = index;
return chunk_index;
}
TEB_FLS_DATA *fls_alloc_data(void)
{
TEB_FLS_DATA *fls;
if (!(fls = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*fls) )))
return NULL;
lock_fls_data();
InsertTailList( &fls_data.fls_list_head, &fls->fls_list_entry );
unlock_fls_data();
return fls;
}
/***********************************************************************
* RtlFlsAlloc (NTDLL.@)
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsAlloc( PFLS_CALLBACK_FUNCTION callback, ULONG *ret_index )
{
unsigned int chunk_index, index, i;
FLS_INFO_CHUNK *chunk;
TEB_FLS_DATA *fls;
if (!(fls = NtCurrentTeb()->FlsSlots)
&& !(NtCurrentTeb()->FlsSlots = fls = fls_alloc_data()))
return STATUS_NO_MEMORY;
lock_fls_data();
for (i = 0; i < ARRAY_SIZE(fls_data.fls_callback_chunks); ++i)
{
if (!fls_data.fls_callback_chunks[i] || fls_data.fls_callback_chunks[i]->count < fls_chunk_size( i ))
break;
}
if ((chunk_index = i) == ARRAY_SIZE(fls_data.fls_callback_chunks))
{
unlock_fls_data();
return STATUS_NO_MEMORY;
}
if ((chunk = fls_data.fls_callback_chunks[chunk_index]))
{
for (index = 0; index < fls_chunk_size( chunk_index ); ++index)
if (!chunk->callbacks[index].callback)
break;
assert( index < fls_chunk_size( chunk_index ));
}
else
{
fls_data.fls_callback_chunks[chunk_index] = chunk = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
offsetof(FLS_INFO_CHUNK, callbacks) + sizeof(*chunk->callbacks) * fls_chunk_size( chunk_index ));
if (!chunk)
{
unlock_fls_data();
return STATUS_NO_MEMORY;
}
if (chunk_index)
{
index = 0;
}
else
{
chunk->count = 1; /* FLS index 0 is prohibited. */
chunk->callbacks[0].callback = (void *)~(ULONG_PTR)0;
index = 1;
}
}
++chunk->count;
chunk->callbacks[index].callback = callback ? callback : (PFLS_CALLBACK_FUNCTION)~(ULONG_PTR)0;
if ((*ret_index = fls_index_from_chunk_index( chunk_index, index )) > fls_data.fls_high_index)
fls_data.fls_high_index = *ret_index;
unlock_fls_data();
return STATUS_SUCCESS;
}
/***********************************************************************
* RtlFlsFree (NTDLL.@)
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsFree( ULONG index )
{
PFLS_CALLBACK_FUNCTION callback;
unsigned int chunk_index, idx;
FLS_INFO_CHUNK *chunk;
LIST_ENTRY *entry;
lock_fls_data();
if (!index || index > fls_data.fls_high_index)
{
unlock_fls_data();
return STATUS_INVALID_PARAMETER;
}
chunk_index = fls_chunk_index_from_index( index, &idx );
if (!(chunk = fls_data.fls_callback_chunks[chunk_index])
|| !(callback = chunk->callbacks[idx].callback))
{
unlock_fls_data();
return STATUS_INVALID_PARAMETER;
}
for (entry = fls_data.fls_list_head.Flink; entry != &fls_data.fls_list_head; entry = entry->Flink)
{
TEB_FLS_DATA *fls = CONTAINING_RECORD(entry, TEB_FLS_DATA, fls_list_entry);
if (fls->fls_data_chunks[chunk_index] && fls->fls_data_chunks[chunk_index][idx + 1])
{
if (callback != (void *)~(ULONG_PTR)0)
{
TRACE_(relay)("Calling FLS callback %p, arg %p.\n", callback,
fls->fls_data_chunks[chunk_index][idx + 1]);
callback( fls->fls_data_chunks[chunk_index][idx + 1] );
}
fls->fls_data_chunks[chunk_index][idx + 1] = NULL;
}
}
--chunk->count;
chunk->callbacks[idx].callback = NULL;
unlock_fls_data();
return STATUS_SUCCESS;
}
/***********************************************************************
* RtlFlsSetValue (NTDLL.@)
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsSetValue( ULONG index, void *data )
{
unsigned int chunk_index, idx;
TEB_FLS_DATA *fls;
if (!index || index >= MAX_FLS_DATA_COUNT)
return STATUS_INVALID_PARAMETER;
if (!(fls = NtCurrentTeb()->FlsSlots)
&& !(NtCurrentTeb()->FlsSlots = fls = fls_alloc_data()))
return STATUS_NO_MEMORY;
chunk_index = fls_chunk_index_from_index( index, &idx );
if (!fls->fls_data_chunks[chunk_index] &&
!(fls->fls_data_chunks[chunk_index] = RtlAllocateHeap( GetProcessHeap(), HEAP_ZERO_MEMORY,
(fls_chunk_size( chunk_index ) + 1) * sizeof(*fls->fls_data_chunks[chunk_index]) )))
return STATUS_NO_MEMORY;
fls->fls_data_chunks[chunk_index][idx + 1] = data;
return STATUS_SUCCESS;
}
/***********************************************************************
* RtlFlsGetValue (NTDLL.@)
*/
NTSTATUS WINAPI DECLSPEC_HOTPATCH RtlFlsGetValue( ULONG index, void **data )
{
unsigned int chunk_index, idx;
TEB_FLS_DATA *fls;
if (!index || index >= MAX_FLS_DATA_COUNT || !(fls = NtCurrentTeb()->FlsSlots))
return STATUS_INVALID_PARAMETER;
chunk_index = fls_chunk_index_from_index( index, &idx );
*data = fls->fls_data_chunks[chunk_index] ? fls->fls_data_chunks[chunk_index][idx + 1] : NULL;
return STATUS_SUCCESS;
}
/***********************************************************************
* RtlProcessFlsData (NTDLL.@)
*/
void WINAPI DECLSPEC_HOTPATCH RtlProcessFlsData( void *teb_fls_data, ULONG flags )
{
TEB_FLS_DATA *fls = teb_fls_data;
unsigned int i, index;
TRACE_(thread)( "teb_fls_data %p, flags %#x.\n", teb_fls_data, flags );
if (flags & ~3)
FIXME_(thread)( "Unknown flags %#x.\n", flags );
if (!fls)
return;
if (flags & 1)
{
lock_fls_data();
for (i = 0; i < ARRAY_SIZE(fls->fls_data_chunks); ++i)
{
if (!fls->fls_data_chunks[i] || !fls_data.fls_callback_chunks[i]
|| !fls_data.fls_callback_chunks[i]->count)
continue;
for (index = 0; index < fls_chunk_size( i ); ++index)
{
PFLS_CALLBACK_FUNCTION callback = fls_data.fls_callback_chunks[i]->callbacks[index].callback;
if (!fls->fls_data_chunks[i][index + 1])
continue;
if (callback && callback != (void *)~(ULONG_PTR)0)
{
TRACE_(relay)("Calling FLS callback %p, arg %p.\n", callback,
fls->fls_data_chunks[i][index + 1]);
callback( fls->fls_data_chunks[i][index + 1] );
}
fls->fls_data_chunks[i][index + 1] = NULL;
}
}
/* Not using RemoveEntryList() as Windows does not zero list entry here. */
fls->fls_list_entry.Flink->Blink = fls->fls_list_entry.Blink;
fls->fls_list_entry.Blink->Flink = fls->fls_list_entry.Flink;
unlock_fls_data();
}
if (flags & 2)
{
for (i = 0; i < ARRAY_SIZE(fls->fls_data_chunks); ++i)
RtlFreeHeap( GetProcessHeap(), 0, fls->fls_data_chunks[i] );
RtlFreeHeap( GetProcessHeap(), 0, fls );
}
}
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