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ntdll: Add platform-specific versions of the thread data structure.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-07-19 15:14:24 +02:00
parent 6effc48365
commit f1ef8a4d9d
2 changed files with 91 additions and 58 deletions
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127
dlls/ntdll/signal_i386.c
View File

@ -529,6 +529,29 @@ enum i386_trap_code
#endif
};
struct x86_thread_data
{
DWORD dr0; /* 1bc Debug registers */
DWORD dr1; /* 1c0 */
DWORD dr2; /* 1c4 */
DWORD dr3; /* 1c8 */
DWORD dr6; /* 1cc */
DWORD dr7; /* 1d0 */
DWORD fs; /* 1d4 TEB selector */
DWORD gs; /* 1d8 libc selector; update winebuild if you move this! */
void *vm86_ptr; /* 1dc data for vm86 mode */
int __pad[7]; /* 1e0 space for ntdll_thread_data (FIXME) */
WINE_VM86_TEB_INFO vm86; /* 1fc vm86 private data */
void *exit_frame; /* 204 exit frame pointer */
};
C_ASSERT( offsetof( TEB, SpareBytes1 ) + offsetof( struct x86_thread_data, gs ) == 0x1d8 );
static inline struct x86_thread_data *x86_thread_data(void)
{
return (struct x86_thread_data *)NtCurrentTeb()->SpareBytes1;
}
/* Exception record for handling exceptions happening inside exception handlers */
typedef struct
{
@ -839,7 +862,7 @@ static void merge_vm86_pending_flags( EXCEPTION_RECORD *rec )
{
BOOL check_pending = TRUE;
struct vm86plus_struct *vm86 =
(struct vm86plus_struct*)(ntdll_get_thread_data()->vm86_ptr);
(struct vm86plus_struct*)x86_thread_data()->vm86_ptr;
/*
* In order to prevent a race when SIGUSR2 occurs while
@ -849,8 +872,8 @@ static void merge_vm86_pending_flags( EXCEPTION_RECORD *rec )
while (check_pending && get_vm86_teb_info()->vm86_pending)
{
check_pending = FALSE;
ntdll_get_thread_data()->vm86_ptr = NULL;
x86_thread_data()->vm86_ptr = NULL;
/*
* If VIF is set, throw exception.
* Note that SIGUSR2 may turn VIF flag off so
@ -875,7 +898,7 @@ static void merge_vm86_pending_flags( EXCEPTION_RECORD *rec )
check_pending = TRUE;
}
ntdll_get_thread_data()->vm86_ptr = vm86;
x86_thread_data()->vm86_ptr = vm86;
}
/*
@ -908,11 +931,11 @@ static void (*libc_sigacthandler)( int signal, siginfo_t *siginfo, void *context
static void wine_sigacthandler( int signal, siginfo_t *siginfo, void *sigcontext )
{
struct ntdll_thread_data *thread_data;
struct x86_thread_data *thread_data;
__asm__ __volatile__("mov %ss,%ax; mov %ax,%ds; mov %ax,%es");
thread_data = (struct ntdll_thread_data *)get_current_teb()->SpareBytes1;
thread_data = (struct x86_thread_data *)get_current_teb()->SystemReserved2;
wine_set_fs( thread_data->fs );
wine_set_gs( thread_data->gs );
@ -974,7 +997,7 @@ static inline void *init_handler( const ucontext_t *sigcontext, WORD *fs, WORD *
#ifndef __sun /* see above for Solaris handling */
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
struct x86_thread_data *thread_data = (struct x86_thread_data *)teb->SystemReserved2;
wine_set_fs( thread_data->fs );
wine_set_gs( thread_data->gs );
}
@ -1099,7 +1122,6 @@ static void fpux_to_fpu( FLOATING_SAVE_AREA *fpu, const XMM_SAVE_AREA32 *fpux )
*/
static inline void save_context( CONTEXT *context, const ucontext_t *sigcontext, WORD fs, WORD gs )
{
struct ntdll_thread_data * const regs = ntdll_get_thread_data();
FLOATING_SAVE_AREA *fpu = FPU_sig(sigcontext);
XMM_SAVE_AREA32 *fpux = FPUX_sig(sigcontext);
@ -1121,12 +1143,12 @@ static inline void save_context( CONTEXT *context, const ucontext_t *sigcontext,
context->SegFs = fs;
context->SegGs = gs;
context->SegSs = LOWORD(SS_sig(sigcontext));
context->Dr0 = regs->dr0;
context->Dr1 = regs->dr1;
context->Dr2 = regs->dr2;
context->Dr3 = regs->dr3;
context->Dr6 = regs->dr6;
context->Dr7 = regs->dr7;
context->Dr0 = x86_thread_data()->dr0;
context->Dr1 = x86_thread_data()->dr1;
context->Dr2 = x86_thread_data()->dr2;
context->Dr3 = x86_thread_data()->dr3;
context->Dr6 = x86_thread_data()->dr6;
context->Dr7 = x86_thread_data()->dr7;
if (fpu)
{
@ -1151,16 +1173,15 @@ static inline void save_context( CONTEXT *context, const ucontext_t *sigcontext,
*/
static inline void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
{
struct ntdll_thread_data * const regs = ntdll_get_thread_data();
FLOATING_SAVE_AREA *fpu = FPU_sig(sigcontext);
XMM_SAVE_AREA32 *fpux = FPUX_sig(sigcontext);
regs->dr0 = context->Dr0;
regs->dr1 = context->Dr1;
regs->dr2 = context->Dr2;
regs->dr3 = context->Dr3;
regs->dr6 = context->Dr6;
regs->dr7 = context->Dr7;
x86_thread_data()->dr0 = context->Dr0;
x86_thread_data()->dr1 = context->Dr1;
x86_thread_data()->dr2 = context->Dr2;
x86_thread_data()->dr3 = context->Dr3;
x86_thread_data()->dr6 = context->Dr6;
x86_thread_data()->dr7 = context->Dr7;
EAX_sig(sigcontext) = context->Eax;
EBX_sig(sigcontext) = context->Ebx;
ECX_sig(sigcontext) = context->Ecx;
@ -1239,12 +1260,12 @@ static void set_cpu_context( const CONTEXT *context )
if (flags & CONTEXT_DEBUG_REGISTERS)
{
ntdll_get_thread_data()->dr0 = context->Dr0;
ntdll_get_thread_data()->dr1 = context->Dr1;
ntdll_get_thread_data()->dr2 = context->Dr2;
ntdll_get_thread_data()->dr3 = context->Dr3;
ntdll_get_thread_data()->dr6 = context->Dr6;
ntdll_get_thread_data()->dr7 = context->Dr7;
x86_thread_data()->dr0 = context->Dr0;
x86_thread_data()->dr1 = context->Dr1;
x86_thread_data()->dr2 = context->Dr2;
x86_thread_data()->dr3 = context->Dr3;
x86_thread_data()->dr6 = context->Dr6;
x86_thread_data()->dr7 = context->Dr7;
}
if (flags & CONTEXT_FULL)
{
@ -1471,12 +1492,12 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
/* debug registers require a server call */
if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)))
self = (ntdll_get_thread_data()->dr0 == context->Dr0 &&
ntdll_get_thread_data()->dr1 == context->Dr1 &&
ntdll_get_thread_data()->dr2 == context->Dr2 &&
ntdll_get_thread_data()->dr3 == context->Dr3 &&
ntdll_get_thread_data()->dr6 == context->Dr6 &&
ntdll_get_thread_data()->dr7 == context->Dr7);
self = (x86_thread_data()->dr0 == context->Dr0 &&
x86_thread_data()->dr1 == context->Dr1 &&
x86_thread_data()->dr2 == context->Dr2 &&
x86_thread_data()->dr3 == context->Dr3 &&
x86_thread_data()->dr6 == context->Dr6 &&
x86_thread_data()->dr7 == context->Dr7);
if (!self) ret = set_thread_context( handle, context, &self );
@ -1516,12 +1537,12 @@ NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
{
ntdll_get_thread_data()->dr0 = context->Dr0;
ntdll_get_thread_data()->dr1 = context->Dr1;
ntdll_get_thread_data()->dr2 = context->Dr2;
ntdll_get_thread_data()->dr3 = context->Dr3;
ntdll_get_thread_data()->dr6 = context->Dr6;
ntdll_get_thread_data()->dr7 = context->Dr7;
x86_thread_data()->dr0 = context->Dr0;
x86_thread_data()->dr1 = context->Dr1;
x86_thread_data()->dr2 = context->Dr2;
x86_thread_data()->dr3 = context->Dr3;
x86_thread_data()->dr6 = context->Dr6;
x86_thread_data()->dr7 = context->Dr7;
}
}
return STATUS_SUCCESS;
@ -1626,7 +1647,7 @@ static inline BOOL check_invalid_gs( CONTEXT *context )
{
unsigned int prefix_count = 0;
const BYTE *instr = (BYTE *)context->Eip;
WORD system_gs = ntdll_get_thread_data()->gs;
WORD system_gs = x86_thread_data()->gs;
if (context->SegGs == system_gs) return FALSE;
if (!wine_ldt_is_system( context->SegCs )) return FALSE;
@ -2015,7 +2036,7 @@ static void WINAPI raise_trap_exception( EXCEPTION_RECORD *rec, CONTEXT *context
* single step interrupt. try to avoid as much overhead as possible
* and only do a server call if there is any hw bp enabled. */
if( !(context->EFlags & 0x100) || (ntdll_get_thread_data()->dr7 & 0xff) )
if( !(context->EFlags & 0x100) || (x86_thread_data()->dr7 & 0xff) )
{
/* (possible) hardware breakpoint, fetch the debug registers */
DWORD saved_flags = context->ContextFlags;
@ -2055,7 +2076,7 @@ static void WINAPI raise_vm86_sti_exception( EXCEPTION_RECORD *rec, CONTEXT *con
/* merge_vm86_pending_flags merges the vm86_pending flag in safely */
get_vm86_teb_info()->vm86_pending |= VIP_FLAG;
if (ntdll_get_thread_data()->vm86_ptr)
if (x86_thread_data()->vm86_ptr)
{
if (((char*)context->Eip >= (char*)vm86_return) &&
((char*)context->Eip <= (char*)vm86_return_end) &&
@ -2378,7 +2399,7 @@ static void ldt_unlock(void)
NTSTATUS signal_alloc_thread( TEB **teb )
{
static size_t sigstack_zero_bits;
struct ntdll_thread_data *thread_data;
struct x86_thread_data *thread_data;
SIZE_T size;
void *addr = NULL;
NTSTATUS status;
@ -2400,7 +2421,7 @@ NTSTATUS signal_alloc_thread( TEB **teb )
*teb = addr;
(*teb)->Tib.Self = &(*teb)->Tib;
(*teb)->Tib.ExceptionList = (void *)~0UL;
thread_data = (struct ntdll_thread_data *)(*teb)->SpareBytes1;
thread_data = (struct x86_thread_data *)(*teb)->SystemReserved2;
if (!(thread_data->fs = wine_ldt_alloc_fs()))
{
size = 0;
@ -2418,7 +2439,7 @@ NTSTATUS signal_alloc_thread( TEB **teb )
void signal_free_thread( TEB *teb )
{
SIZE_T size;
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
struct x86_thread_data *thread_data = (struct x86_thread_data *)teb->SystemReserved2;
if (thread_data) wine_ldt_free_fs( thread_data->fs );
if (teb->DeallocationStack)
@ -2437,7 +2458,7 @@ void signal_free_thread( TEB *teb )
void signal_init_thread( TEB *teb )
{
const WORD fpu_cw = 0x27f;
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SpareBytes1;
struct x86_thread_data *thread_data = (struct x86_thread_data *)teb->SystemReserved2;
LDT_ENTRY fs_entry;
stack_t ss;
@ -2537,10 +2558,10 @@ void __wine_enter_vm86( CONTEXT *context )
{
restore_vm86_context( context, &vm86 );
ntdll_get_thread_data()->vm86_ptr = &vm86;
x86_thread_data()->vm86_ptr = &vm86;
merge_vm86_pending_flags( &rec );
res = vm86_enter( &ntdll_get_thread_data()->vm86_ptr ); /* uses and clears teb->vm86_ptr */
res = vm86_enter( &x86_thread_data()->vm86_ptr ); /* uses and clears teb->vm86_ptr */
if (res < 0)
{
errno = -res;
@ -2775,7 +2796,7 @@ __ASM_GLOBAL_FUNC(call_thread_func_wrapper,
*/
void call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg, void *frame )
{
ntdll_get_thread_data()->exit_frame = frame;
x86_thread_data()->exit_frame = frame;
__TRY
{
call_thread_func_wrapper( entry, arg );
@ -2793,8 +2814,8 @@ void call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg, void *frame )
*/
void WINAPI RtlExitUserThread( ULONG status )
{
if (!ntdll_get_thread_data()->exit_frame) exit_thread( status );
call_thread_exit_func( status, exit_thread, ntdll_get_thread_data()->exit_frame );
if (!x86_thread_data()->exit_frame) exit_thread( status );
call_thread_exit_func( status, exit_thread, x86_thread_data()->exit_frame );
}
/***********************************************************************
@ -2802,8 +2823,8 @@ void WINAPI RtlExitUserThread( ULONG status )
*/
void abort_thread( int status )
{
if (!ntdll_get_thread_data()->exit_frame) terminate_thread( status );
call_thread_exit_func( status, terminate_thread, ntdll_get_thread_data()->exit_frame );
if (!x86_thread_data()->exit_frame) terminate_thread( status );
call_thread_exit_func( status, terminate_thread, x86_thread_data()->exit_frame );
}
/**********************************************************************

22
dlls/ntdll/signal_x86_64.c
View File

@ -308,6 +308,18 @@ typedef int (*wine_signal_handler)(unsigned int sig);
static wine_signal_handler handlers[256];
struct amd64_thread_data
{
void *exit_frame; /* exit frame pointer */
};
C_ASSERT( sizeof(struct amd64_thread_data) <= sizeof(((TEB *)0)->SpareBytes1) );
static inline struct amd64_thread_data *amd64_thread_data(void)
{
return (struct amd64_thread_data *)NtCurrentTeb()->SpareBytes1;
}
/***********************************************************************
* Dynamic unwind table
*/
@ -3992,7 +4004,7 @@ USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer,
*/
void call_thread_func( LPTHREAD_START_ROUTINE entry, void *arg, void *frame )
{
ntdll_get_thread_data()->exit_frame = frame;
amd64_thread_data()->exit_frame = frame;
__TRY
{
RtlExitUserThread( entry( arg ));
@ -4041,8 +4053,8 @@ __ASM_GLOBAL_FUNC( call_thread_exit_func,
*/
void WINAPI RtlExitUserThread( ULONG status )
{
if (!ntdll_get_thread_data()->exit_frame) exit_thread( status );
call_thread_exit_func( status, exit_thread, ntdll_get_thread_data()->exit_frame );
if (!amd64_thread_data()->exit_frame) exit_thread( status );
call_thread_exit_func( status, exit_thread, amd64_thread_data()->exit_frame );
}
/***********************************************************************
@ -4050,8 +4062,8 @@ void WINAPI RtlExitUserThread( ULONG status )
*/
void abort_thread( int status )
{
if (!ntdll_get_thread_data()->exit_frame) terminate_thread( status );
call_thread_exit_func( status, terminate_thread, ntdll_get_thread_data()->exit_frame );
if (!amd64_thread_data()->exit_frame) terminate_thread( status );
call_thread_exit_func( status, terminate_thread, amd64_thread_data()->exit_frame );
}
/**********************************************************************