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ntdll: Run the entire thread initialization code on the thread stack on x86-64. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-12-01 19:20:22 +01:00
parent a89fdd58ec
commit 32c2cfb861
1 changed files with 88 additions and 79 deletions
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167
dlls/ntdll/signal_x86_64.c
View File

@ -3053,15 +3053,6 @@ static void *mac_thread_gsbase(void)
#endif
/***********************************************************************
* start_process
*/
static void CDECL start_process( LPTHREAD_START_ROUTINE entry, PEB *peb )
{
call_thread_entry_point( kernel32_start_process, entry );
}
/**********************************************************************
* signal_init_thread
*/
@ -3144,70 +3135,6 @@ void signal_init_process(void)
}
struct startup_info
{
LPTHREAD_START_ROUTINE entry;
void *arg;
};
static void thread_startup( void *param )
{
struct startup_info *info = param;
call_thread_entry_point( info->entry, info->arg );
}
/***********************************************************************
* signal_start_thread
*/
void signal_start_thread( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend )
{
CONTEXT context = { 0 };
struct startup_info info = { entry, arg };
/* build the initial context */
context.ContextFlags = CONTEXT_FULL;
__asm__( "movw %%cs,%0" : "=m" (context.SegCs) );
__asm__( "movw %%ss,%0" : "=m" (context.SegSs) );
__asm__( "fxsave %0" : "=m" (context.u.FltSave) );
context.Rcx = (ULONG_PTR)entry;
context.Rdx = (ULONG_PTR)arg;
context.Rsp = (ULONG_PTR)NtCurrentTeb()->Tib.StackBase - 0x28;
context.Rip = (ULONG_PTR)call_thread_entry_point;
if (suspend) wait_suspend( &context );
wine_call_on_stack( attach_dlls, (void *)1, NtCurrentTeb()->Tib.StackBase );
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
wine_switch_to_stack( thread_startup, &info, NtCurrentTeb()->Tib.StackBase );
}
/**********************************************************************
* signal_start_process
*/
void signal_start_process( LPTHREAD_START_ROUTINE entry, BOOL suspend )
{
CONTEXT context = { 0 };
/* build the initial context */
context.ContextFlags = CONTEXT_FULL;
__asm__( "movw %%cs,%0" : "=m" (context.SegCs) );
__asm__( "movw %%ss,%0" : "=m" (context.SegSs) );
__asm__( "fxsave %0" : "=m" (context.u.FltSave) );
context.Rcx = (ULONG_PTR)entry;
context.Rdx = (ULONG_PTR)NtCurrentTeb()->Peb;
context.Rsp = (ULONG_PTR)NtCurrentTeb()->Tib.StackBase - 0x28;
context.Rip = (ULONG_PTR)start_process;
if (suspend) wait_suspend( &context );
wine_call_on_stack( attach_dlls, (void *)1, (char *)NtCurrentTeb()->Tib.StackBase - page_size );
virtual_clear_thread_stack();
set_cpu_context( &context );
}
/**********************************************************************
* RtlAddFunctionTable (NTDLL.@)
*/
@ -4130,11 +4057,11 @@ USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer,
/***********************************************************************
* call_thread_func
*/
void DECLSPEC_HIDDEN call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg, void *frame )
static void WINAPI call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg )
{
amd64_thread_data()->exit_frame = frame;
__TRY
{
TRACE_(relay)( "\1Starting thread proc %p (arg=%p)\n", entry, arg );
RtlExitUserThread( entry( arg ));
}
__EXCEPT(unhandled_exception_filter)
@ -4145,8 +4072,28 @@ void DECLSPEC_HIDDEN call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg,
abort(); /* should not be reached */
}
extern void DECLSPEC_NORETURN call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg );
__ASM_GLOBAL_FUNC( call_thread_entry_point,
/***********************************************************************
* call_process_func
*/
static void WINAPI call_process_func( LPTHREAD_START_ROUTINE entry, void *arg )
{
__TRY
{
RtlExitUserThread( kernel32_start_process( entry ));
}
__EXCEPT(unhandled_exception_filter)
{
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
abort(); /* should not be reached */
}
extern void DECLSPEC_NORETURN start_thread( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend,
void *relay, void *stack, void **exit_frame );
__ASM_GLOBAL_FUNC( start_thread,
"subq $56,%rsp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset 56\n\t")
"movq %rbp,48(%rsp)\n\t"
@ -4161,8 +4108,24 @@ __ASM_GLOBAL_FUNC( call_thread_entry_point,
__ASM_CFI(".cfi_rel_offset %r14,16\n\t")
"movq %r15,8(%rsp)\n\t"
__ASM_CFI(".cfi_rel_offset %r15,8\n\t")
"movq %rsp,%rdx\n\t"
"call " __ASM_NAME("call_thread_func") );
/* store exit frame */
"movq %rsp,(%r9)\n\t"
/* build initial context on thread stack */
"leaq -0x500(%r8),%r10\n\t" /* sizeof(context) + 0x30 for function params */
"movq $0x001000b,0x30(%r10)\n\t" /* context->ContextFlags = CONTEXT_FULL */
"movw %cs,0x38(%r10)\n\t" /* context->SegCs */
"movw %ss,0x42(%r10)\n\t" /* context->SegSs */
"movq %rdi,0x80(%r10)\n\t" /* context->Rcx = entry */
"movq %rsi,0x88(%r10)\n\t" /* context->Rdx = arg */
"leaq -0x28(%r8),%rax\n\t"
"movq %rax,0x98(%r10)\n\t" /* context->Rsp */
"movq %rcx,0xf8(%r10)\n\t" /* context->Rip = relay */
"fxsave 0x100(%r10)\n\t" /* context->FtlSave */
/* switch to thread stack and call thread_startup() */
"movq %r10,%rsp\n\t"
"movq %r10,%rdi\n\t" /* context */
"movq %rdx,%rsi\n\t" /* suspend */
"call " __ASM_NAME("thread_startup") )
extern void DECLSPEC_NORETURN call_thread_exit_func( int status, void (*func)(int), void *frame );
__ASM_GLOBAL_FUNC( call_thread_exit_func,
@ -4176,6 +4139,52 @@ __ASM_GLOBAL_FUNC( call_thread_exit_func,
__ASM_CFI(".cfi_rel_offset %r15,8\n\t")
"call *%rsi" );
/***********************************************************************
* thread_startup
*/
void DECLSPEC_HIDDEN thread_startup( CONTEXT *context, BOOL suspend )
{
if (suspend) wait_suspend( context );
attach_dlls( context );
virtual_clear_thread_stack();
set_cpu_context( context );
}
/***********************************************************************
* signal_start_thread
*
* Thread startup sequence:
* signal_start_thread()
* -> start_thread()
* -> thread_startup()
* -> call_thread_func()
*/
void signal_start_thread( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend )
{
start_thread( entry, arg, suspend, call_thread_func,
NtCurrentTeb()->Tib.StackBase, &amd64_thread_data()->exit_frame );
}
/**********************************************************************
* signal_start_process
*
* Process startup sequence:
* signal_start_process()
* -> start_thread()
* -> thread_startup()
* -> call_process_func()
* -> kernel32_start_process()
*/
void signal_start_process( LPTHREAD_START_ROUTINE entry, BOOL suspend )
{
start_thread( entry, NtCurrentTeb()->Peb, suspend, call_process_func,
NtCurrentTeb()->Tib.StackBase, &amd64_thread_data()->exit_frame );
}
/***********************************************************************
* RtlExitUserThread (NTDLL.@)
*/