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ntdll: Move NtGetContextThread() implementation to the Unix library. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-06-02 14:05:42 +02:00
parent ac90898f72
commit 7c32b2dd93
16 changed files with 660 additions and 870 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dlls/ntdll/ntdll_misc.h
View File

@ -62,7 +62,6 @@ extern void wait_suspend( CONTEXT *context ) DECLSPEC_HIDDEN;
extern NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, int first_chance, CONTEXT *context ) DECLSPEC_HIDDEN;
extern LONG call_vectored_handlers( EXCEPTION_RECORD *rec, CONTEXT *context ) DECLSPEC_HIDDEN;
extern void DECLSPEC_NORETURN raise_status( NTSTATUS status, EXCEPTION_RECORD *rec ) DECLSPEC_HIDDEN;
extern NTSTATUS context_from_server( CONTEXT *to, const context_t *from ) DECLSPEC_HIDDEN;
extern NTSTATUS set_thread_context( HANDLE handle, const context_t *context, BOOL *self ) DECLSPEC_HIDDEN;
extern NTSTATUS get_thread_context( HANDLE handle, context_t *context, unsigned int flags, BOOL *self ) DECLSPEC_HIDDEN;
extern LONG WINAPI call_unhandled_exception_filter( PEXCEPTION_POINTERS eptr ) DECLSPEC_HIDDEN;

142
dlls/ntdll/signal_arm.c
View File

@ -296,148 +296,6 @@ __ASM_GLOBAL_FUNC( set_cpu_context,
"pop {pc}" )
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_ARM; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_ARM; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->Sp = from->Sp;
to->Lr = from->Lr;
to->Pc = from->Pc;
to->Cpsr = from->Cpsr;
}
if (flags & CONTEXT_INTEGER)
{
to->R0 = from->R0;
to->R1 = from->R1;
to->R2 = from->R2;
to->R3 = from->R3;
to->R4 = from->R4;
to->R5 = from->R5;
to->R6 = from->R6;
to->R7 = from->R7;
to->R8 = from->R8;
to->R9 = from->R9;
to->R10 = from->R10;
to->R11 = from->R11;
to->R12 = from->R12;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->Fpscr = from->Fpscr;
memcpy( to->u.D, from->u.D, sizeof(to->u.D) );
}
}
/***********************************************************************
* context_from_server
*
* Convert a register context from the server format.
*/
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
{
DWORD i;
if (from->cpu != CPU_ARM) return STATUS_INVALID_PARAMETER;
to->ContextFlags = CONTEXT_ARM;
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= CONTEXT_CONTROL;
to->Sp = from->ctl.arm_regs.sp;
to->Lr = from->ctl.arm_regs.lr;
to->Pc = from->ctl.arm_regs.pc;
to->Cpsr = from->ctl.arm_regs.cpsr;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= CONTEXT_INTEGER;
to->R0 = from->integer.arm_regs.r[0];
to->R1 = from->integer.arm_regs.r[1];
to->R2 = from->integer.arm_regs.r[2];
to->R3 = from->integer.arm_regs.r[3];
to->R4 = from->integer.arm_regs.r[4];
to->R5 = from->integer.arm_regs.r[5];
to->R6 = from->integer.arm_regs.r[6];
to->R7 = from->integer.arm_regs.r[7];
to->R8 = from->integer.arm_regs.r[8];
to->R9 = from->integer.arm_regs.r[9];
to->R10 = from->integer.arm_regs.r[10];
to->R11 = from->integer.arm_regs.r[11];
to->R12 = from->integer.arm_regs.r[12];
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= CONTEXT_FLOATING_POINT;
for (i = 0; i < 32; i++) to->u.D[i] = from->fp.arm_regs.d[i];
to->Fpscr = from->fp.arm_regs.fpscr;
}
if (from->flags & SERVER_CTX_DEBUG_REGISTERS)
{
to->ContextFlags |= CONTEXT_DEBUG_REGISTERS;
for (i = 0; i < ARM_MAX_BREAKPOINTS; i++) to->Bvr[i] = from->debug.arm_regs.bvr[i];
for (i = 0; i < ARM_MAX_BREAKPOINTS; i++) to->Bcr[i] = from->debug.arm_regs.bcr[i];
for (i = 0; i < ARM_MAX_WATCHPOINTS; i++) to->Wvr[i] = from->debug.arm_regs.wvr[i];
for (i = 0; i < ARM_MAX_WATCHPOINTS; i++) to->Wcr[i] = from->debug.arm_regs.wcr[i];
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
extern void raise_func_trampoline_thumb( EXCEPTION_RECORD *rec, CONTEXT *context, raise_func func );
__ASM_GLOBAL_FUNC( raise_func_trampoline_thumb,
".thumb\n\t"

130
dlls/ntdll/signal_arm64.c
View File

@ -308,136 +308,6 @@ static void set_cpu_context( const CONTEXT *context )
raise( SIGUSR2 );
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_ARM64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_ARM64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->u.s.Fp = from->u.s.Fp;
to->u.s.Lr = from->u.s.Lr;
to->Sp = from->Sp;
to->Pc = from->Pc;
to->Cpsr = from->Cpsr;
}
if (flags & CONTEXT_INTEGER)
{
memcpy( to->u.X, from->u.X, sizeof(to->u.X) );
}
if (flags & CONTEXT_FLOATING_POINT)
{
memcpy( to->V, from->V, sizeof(to->V) );
to->Fpcr = from->Fpcr;
to->Fpsr = from->Fpsr;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
memcpy( to->Bcr, from->Bcr, sizeof(to->Bcr) );
memcpy( to->Bvr, from->Bvr, sizeof(to->Bvr) );
memcpy( to->Wcr, from->Wcr, sizeof(to->Wcr) );
memcpy( to->Wvr, from->Wvr, sizeof(to->Wvr) );
}
}
/***********************************************************************
* context_from_server
*
* Convert a register context from the server format.
*/
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
{
DWORD i;
if (from->cpu != CPU_ARM64) return STATUS_INVALID_PARAMETER;
to->ContextFlags = CONTEXT_ARM64;
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= CONTEXT_CONTROL;
to->u.s.Fp = from->integer.arm64_regs.x[29];
to->u.s.Lr = from->integer.arm64_regs.x[30];
to->Sp = from->ctl.arm64_regs.sp;
to->Pc = from->ctl.arm64_regs.pc;
to->Cpsr = from->ctl.arm64_regs.pstate;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= CONTEXT_INTEGER;
for (i = 0; i <= 28; i++) to->u.X[i] = from->integer.arm64_regs.x[i];
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= CONTEXT_FLOATING_POINT;
for (i = 0; i < 32; i++)
{
to->V[i].s.Low = from->fp.arm64_regs.q[i].low;
to->V[i].s.High = from->fp.arm64_regs.q[i].high;
}
to->Fpcr = from->fp.arm64_regs.fpcr;
to->Fpsr = from->fp.arm64_regs.fpsr;
}
if (from->flags & SERVER_CTX_DEBUG_REGISTERS)
{
to->ContextFlags |= CONTEXT_DEBUG_REGISTERS;
for (i = 0; i < ARM64_MAX_BREAKPOINTS; i++) to->Bcr[i] = from->debug.arm64_regs.bcr[i];
for (i = 0; i < ARM64_MAX_BREAKPOINTS; i++) to->Bvr[i] = from->debug.arm64_regs.bvr[i];
for (i = 0; i < ARM64_MAX_WATCHPOINTS; i++) to->Wcr[i] = from->debug.arm64_regs.wcr[i];
for (i = 0; i < ARM64_MAX_WATCHPOINTS; i++) to->Wvr[i] = from->debug.arm64_regs.wvr[i];
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/***********************************************************************
* libunwind_virtual_unwind

171
dlls/ntdll/signal_i386.c
View File

@ -1251,96 +1251,6 @@ void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_i386; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
return ret;
}
/***********************************************************************
* context_from_server
*
* Convert a register context from the server format.
*/
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
{
if (from->cpu != CPU_x86) return STATUS_INVALID_PARAMETER;
to->ContextFlags = CONTEXT_i386;
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= CONTEXT_CONTROL;
to->Ebp = from->ctl.i386_regs.ebp;
to->Esp = from->ctl.i386_regs.esp;
to->Eip = from->ctl.i386_regs.eip;
to->SegCs = from->ctl.i386_regs.cs;
to->SegSs = from->ctl.i386_regs.ss;
to->EFlags = from->ctl.i386_regs.eflags;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= CONTEXT_INTEGER;
to->Eax = from->integer.i386_regs.eax;
to->Ebx = from->integer.i386_regs.ebx;
to->Ecx = from->integer.i386_regs.ecx;
to->Edx = from->integer.i386_regs.edx;
to->Esi = from->integer.i386_regs.esi;
to->Edi = from->integer.i386_regs.edi;
}
if (from->flags & SERVER_CTX_SEGMENTS)
{
to->ContextFlags |= CONTEXT_SEGMENTS;
to->SegDs = from->seg.i386_regs.ds;
to->SegEs = from->seg.i386_regs.es;
to->SegFs = from->seg.i386_regs.fs;
to->SegGs = from->seg.i386_regs.gs;
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= CONTEXT_FLOATING_POINT;
to->FloatSave.ControlWord = from->fp.i386_regs.ctrl;
to->FloatSave.StatusWord = from->fp.i386_regs.status;
to->FloatSave.TagWord = from->fp.i386_regs.tag;
to->FloatSave.ErrorOffset = from->fp.i386_regs.err_off;
to->FloatSave.ErrorSelector = from->fp.i386_regs.err_sel;
to->FloatSave.DataOffset = from->fp.i386_regs.data_off;
to->FloatSave.DataSelector = from->fp.i386_regs.data_sel;
to->FloatSave.Cr0NpxState = from->fp.i386_regs.cr0npx;
memcpy( to->FloatSave.RegisterArea, from->fp.i386_regs.regs, sizeof(to->FloatSave.RegisterArea) );
}
if (from->flags & SERVER_CTX_DEBUG_REGISTERS)
{
to->ContextFlags |= CONTEXT_DEBUG_REGISTERS;
to->Dr0 = from->debug.i386_regs.dr0;
to->Dr1 = from->debug.i386_regs.dr1;
to->Dr2 = from->debug.i386_regs.dr2;
to->Dr3 = from->debug.i386_regs.dr3;
to->Dr6 = from->debug.i386_regs.dr6;
to->Dr7 = from->debug.i386_regs.dr7;
}
if (from->flags & SERVER_CTX_EXTENDED_REGISTERS)
{
to->ContextFlags |= CONTEXT_EXTENDED_REGISTERS;
memcpy( to->ExtendedRegisters, from->ext.i386_regs, sizeof(to->ExtendedRegisters) );
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
@ -1352,82 +1262,23 @@ NTSTATUS CDECL DECLSPEC_HIDDEN __regs_NtGetContextThread( DWORD edi, DWORD esi,
DWORD ebp, DWORD retaddr, HANDLE handle,
CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags & ~CONTEXT_i386;
BOOL self = (handle == GetCurrentThread());
/* debug registers require a server call */
if (needed_flags & CONTEXT_DEBUG_REGISTERS) self = FALSE;
if (!self)
/* preset the registers that we got from the asm wrapper */
if (needed_flags & CONTEXT_INTEGER)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
context->Ebx = ebx;
context->Esi = esi;
context->Edi = edi;
}
if (self)
if (needed_flags & CONTEXT_CONTROL)
{
if (needed_flags & CONTEXT_INTEGER)
{
context->Eax = 0;
context->Ebx = ebx;
context->Ecx = 0;
context->Edx = 0;
context->Esi = esi;
context->Edi = edi;
context->ContextFlags |= CONTEXT_INTEGER;
}
if (needed_flags & CONTEXT_CONTROL)
{
context->Ebp = ebp;
context->Esp = (DWORD)&retaddr;
context->Eip = *(&edi - 1);
context->SegCs = get_cs();
context->SegSs = get_ds();
context->EFlags = eflags;
context->ContextFlags |= CONTEXT_CONTROL;
}
if (needed_flags & CONTEXT_SEGMENTS)
{
context->SegDs = get_ds();
context->SegEs = get_ds();
context->SegFs = get_fs();
context->SegGs = get_gs();
context->ContextFlags |= CONTEXT_SEGMENTS;
}
if (needed_flags & CONTEXT_FLOATING_POINT) save_fpu( context );
if (needed_flags & CONTEXT_EXTENDED_REGISTERS) save_fpux( context );
/* FIXME: xstate */
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
{
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;
}
context->Ebp = ebp;
context->Esp = (DWORD)&retaddr;
context->Eip = *(&edi - 1);
context->EFlags = eflags;
}
if (context->ContextFlags & (CONTEXT_INTEGER & ~CONTEXT_i386))
TRACE( "%p: eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n", handle,
context->Eax, context->Ebx, context->Ecx, context->Edx, context->Esi, context->Edi );
if (context->ContextFlags & (CONTEXT_CONTROL & ~CONTEXT_i386))
TRACE( "%p: ebp=%08x esp=%08x eip=%08x cs=%04x ss=%04x flags=%08x\n", handle,
context->Ebp, context->Esp, context->Eip, context->SegCs, context->SegSs, context->EFlags );
if (context->ContextFlags & (CONTEXT_SEGMENTS & ~CONTEXT_i386))
TRACE( "%p: ds=%04x es=%04x fs=%04x gs=%04x\n", handle,
context->SegDs, context->SegEs, context->SegFs, context->SegGs );
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
TRACE( "%p: dr0=%08x dr1=%08x dr2=%08x dr3=%08x dr6=%08x dr7=%08x\n", handle,
context->Dr0, context->Dr1, context->Dr2, context->Dr3, context->Dr6, context->Dr7 );
return STATUS_SUCCESS;
return unix_funcs->NtGetContextThread( handle, context );
}
__ASM_STDCALL_FUNC( NtGetContextThread, 8,
"pushl %ebp\n\t"

241
dlls/ntdll/signal_powerpc.c
View File

@ -260,247 +260,6 @@ void WINAPI RtlCaptureContext( CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
if (flags & CONTEXT_CONTROL)
{
to->Msr = from->Msr;
to->Ctr = from->Ctr;
to->Iar = from->Iar;
to->Lr = from->Lr;
to->Dar = from->Dar;
to->Dsisr = from->Dsisr;
to->Trap = from->Trap;
}
if (flags & CONTEXT_INTEGER)
{
to->Gpr0 = from->Gpr0;
to->Gpr1 = from->Gpr1;
to->Gpr2 = from->Gpr2;
to->Gpr3 = from->Gpr3;
to->Gpr4 = from->Gpr4;
to->Gpr5 = from->Gpr5;
to->Gpr6 = from->Gpr6;
to->Gpr7 = from->Gpr7;
to->Gpr8 = from->Gpr8;
to->Gpr9 = from->Gpr9;
to->Gpr10 = from->Gpr10;
to->Gpr11 = from->Gpr11;
to->Gpr12 = from->Gpr12;
to->Gpr13 = from->Gpr13;
to->Gpr14 = from->Gpr14;
to->Gpr15 = from->Gpr15;
to->Gpr16 = from->Gpr16;
to->Gpr17 = from->Gpr17;
to->Gpr18 = from->Gpr18;
to->Gpr19 = from->Gpr19;
to->Gpr20 = from->Gpr20;
to->Gpr21 = from->Gpr21;
to->Gpr22 = from->Gpr22;
to->Gpr23 = from->Gpr23;
to->Gpr24 = from->Gpr24;
to->Gpr25 = from->Gpr25;
to->Gpr26 = from->Gpr26;
to->Gpr27 = from->Gpr27;
to->Gpr28 = from->Gpr28;
to->Gpr29 = from->Gpr29;
to->Gpr30 = from->Gpr30;
to->Gpr31 = from->Gpr31;
to->Xer = from->Xer;
to->Cr = from->Cr;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->Fpr0 = from->Fpr0;
to->Fpr1 = from->Fpr1;
to->Fpr2 = from->Fpr2;
to->Fpr3 = from->Fpr3;
to->Fpr4 = from->Fpr4;
to->Fpr5 = from->Fpr5;
to->Fpr6 = from->Fpr6;
to->Fpr7 = from->Fpr7;
to->Fpr8 = from->Fpr8;
to->Fpr9 = from->Fpr9;
to->Fpr10 = from->Fpr10;
to->Fpr11 = from->Fpr11;
to->Fpr12 = from->Fpr12;
to->Fpr13 = from->Fpr13;
to->Fpr14 = from->Fpr14;
to->Fpr15 = from->Fpr15;
to->Fpr16 = from->Fpr16;
to->Fpr17 = from->Fpr17;
to->Fpr18 = from->Fpr18;
to->Fpr19 = from->Fpr19;
to->Fpr20 = from->Fpr20;
to->Fpr21 = from->Fpr21;
to->Fpr22 = from->Fpr22;
to->Fpr23 = from->Fpr23;
to->Fpr24 = from->Fpr24;
to->Fpr25 = from->Fpr25;
to->Fpr26 = from->Fpr26;
to->Fpr27 = from->Fpr27;
to->Fpr28 = from->Fpr28;
to->Fpr29 = from->Fpr29;
to->Fpr30 = from->Fpr30;
to->Fpr31 = from->Fpr31;
to->Fpscr = from->Fpscr;
}
}
/***********************************************************************
* context_from_server
*
* Convert a register context from the server format.
*/
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
{
if (from->cpu != CPU_POWERPC) return STATUS_INVALID_PARAMETER;
to->ContextFlags = 0; /* no CPU id? */
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= CONTEXT_CONTROL;
to->Msr = from->ctl.powerpc_regs.msr;
to->Ctr = from->ctl.powerpc_regs.ctr;
to->Iar = from->ctl.powerpc_regs.iar;
to->Lr = from->ctl.powerpc_regs.lr;
to->Dar = from->ctl.powerpc_regs.dar;
to->Dsisr = from->ctl.powerpc_regs.dsisr;
to->Trap = from->ctl.powerpc_regs.trap;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= CONTEXT_INTEGER;
to->Gpr0 = from->integer.powerpc_regs.gpr[0];
to->Gpr1 = from->integer.powerpc_regs.gpr[1];
to->Gpr2 = from->integer.powerpc_regs.gpr[2];
to->Gpr3 = from->integer.powerpc_regs.gpr[3];
to->Gpr4 = from->integer.powerpc_regs.gpr[4];
to->Gpr5 = from->integer.powerpc_regs.gpr[5];
to->Gpr6 = from->integer.powerpc_regs.gpr[6];
to->Gpr7 = from->integer.powerpc_regs.gpr[7];
to->Gpr8 = from->integer.powerpc_regs.gpr[8];
to->Gpr9 = from->integer.powerpc_regs.gpr[9];
to->Gpr10 = from->integer.powerpc_regs.gpr[10];
to->Gpr11 = from->integer.powerpc_regs.gpr[11];
to->Gpr12 = from->integer.powerpc_regs.gpr[12];
to->Gpr13 = from->integer.powerpc_regs.gpr[13];
to->Gpr14 = from->integer.powerpc_regs.gpr[14];
to->Gpr15 = from->integer.powerpc_regs.gpr[15];
to->Gpr16 = from->integer.powerpc_regs.gpr[16];
to->Gpr17 = from->integer.powerpc_regs.gpr[17];
to->Gpr18 = from->integer.powerpc_regs.gpr[18];
to->Gpr19 = from->integer.powerpc_regs.gpr[19];
to->Gpr20 = from->integer.powerpc_regs.gpr[20];
to->Gpr21 = from->integer.powerpc_regs.gpr[21];
to->Gpr22 = from->integer.powerpc_regs.gpr[22];
to->Gpr23 = from->integer.powerpc_regs.gpr[23];
to->Gpr24 = from->integer.powerpc_regs.gpr[24];
to->Gpr25 = from->integer.powerpc_regs.gpr[25];
to->Gpr26 = from->integer.powerpc_regs.gpr[26];
to->Gpr27 = from->integer.powerpc_regs.gpr[27];
to->Gpr28 = from->integer.powerpc_regs.gpr[28];
to->Gpr29 = from->integer.powerpc_regs.gpr[29];
to->Gpr30 = from->integer.powerpc_regs.gpr[30];
to->Gpr31 = from->integer.powerpc_regs.gpr[31];
to->Xer = from->integer.powerpc_regs.xer;
to->Cr = from->integer.powerpc_regs.cr;
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= CONTEXT_FLOATING_POINT;
to->Fpr0 = from->fp.powerpc_regs.fpr[0];
to->Fpr1 = from->fp.powerpc_regs.fpr[1];
to->Fpr2 = from->fp.powerpc_regs.fpr[2];
to->Fpr3 = from->fp.powerpc_regs.fpr[3];
to->Fpr4 = from->fp.powerpc_regs.fpr[4];
to->Fpr5 = from->fp.powerpc_regs.fpr[5];
to->Fpr6 = from->fp.powerpc_regs.fpr[6];
to->Fpr7 = from->fp.powerpc_regs.fpr[7];
to->Fpr8 = from->fp.powerpc_regs.fpr[8];
to->Fpr9 = from->fp.powerpc_regs.fpr[9];
to->Fpr10 = from->fp.powerpc_regs.fpr[10];
to->Fpr11 = from->fp.powerpc_regs.fpr[11];
to->Fpr12 = from->fp.powerpc_regs.fpr[12];
to->Fpr13 = from->fp.powerpc_regs.fpr[13];
to->Fpr14 = from->fp.powerpc_regs.fpr[14];
to->Fpr15 = from->fp.powerpc_regs.fpr[15];
to->Fpr16 = from->fp.powerpc_regs.fpr[16];
to->Fpr17 = from->fp.powerpc_regs.fpr[17];
to->Fpr18 = from->fp.powerpc_regs.fpr[18];
to->Fpr19 = from->fp.powerpc_regs.fpr[19];
to->Fpr20 = from->fp.powerpc_regs.fpr[20];
to->Fpr21 = from->fp.powerpc_regs.fpr[21];
to->Fpr22 = from->fp.powerpc_regs.fpr[22];
to->Fpr23 = from->fp.powerpc_regs.fpr[23];
to->Fpr24 = from->fp.powerpc_regs.fpr[24];
to->Fpr25 = from->fp.powerpc_regs.fpr[25];
to->Fpr26 = from->fp.powerpc_regs.fpr[26];
to->Fpr27 = from->fp.powerpc_regs.fpr[27];
to->Fpr28 = from->fp.powerpc_regs.fpr[28];
to->Fpr29 = from->fp.powerpc_regs.fpr[29];
to->Fpr30 = from->fp.powerpc_regs.fpr[30];
to->Fpr31 = from->fp.powerpc_regs.fpr[31];
to->Fpscr = from->fp.powerpc_regs.fpscr;
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/**********************************************************************
* call_stack_handlers
*

195
dlls/ntdll/signal_x86_64.c
View File

@ -1889,201 +1889,6 @@ void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->Rbp = from->Rbp;
to->Rip = from->Rip;
to->Rsp = from->Rsp;
to->SegCs = from->SegCs;
to->SegSs = from->SegSs;
to->EFlags = from->EFlags;
}
if (flags & CONTEXT_INTEGER)
{
to->Rax = from->Rax;
to->Rcx = from->Rcx;
to->Rdx = from->Rdx;
to->Rbx = from->Rbx;
to->Rsi = from->Rsi;
to->Rdi = from->Rdi;
to->R8 = from->R8;
to->R9 = from->R9;
to->R10 = from->R10;
to->R11 = from->R11;
to->R12 = from->R12;
to->R13 = from->R13;
to->R14 = from->R14;
to->R15 = from->R15;
}
if (flags & CONTEXT_SEGMENTS)
{
to->SegDs = from->SegDs;
to->SegEs = from->SegEs;
to->SegFs = from->SegFs;
to->SegGs = from->SegGs;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->MxCsr = from->MxCsr;
to->u.FltSave = from->u.FltSave;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
to->Dr0 = from->Dr0;
to->Dr1 = from->Dr1;
to->Dr2 = from->Dr2;
to->Dr3 = from->Dr3;
to->Dr6 = from->Dr6;
to->Dr7 = from->Dr7;
}
}
/***********************************************************************
* context_from_server
*
* Convert a register context from the server format.
*/
NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
{
if (from->cpu != CPU_x86_64) return STATUS_INVALID_PARAMETER;
to->ContextFlags = CONTEXT_AMD64;
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= CONTEXT_CONTROL;
to->Rbp = from->ctl.x86_64_regs.rbp;
to->Rip = from->ctl.x86_64_regs.rip;
to->Rsp = from->ctl.x86_64_regs.rsp;
to->SegCs = from->ctl.x86_64_regs.cs;
to->SegSs = from->ctl.x86_64_regs.ss;
to->EFlags = from->ctl.x86_64_regs.flags;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= CONTEXT_INTEGER;
to->Rax = from->integer.x86_64_regs.rax;
to->Rcx = from->integer.x86_64_regs.rcx;
to->Rdx = from->integer.x86_64_regs.rdx;
to->Rbx = from->integer.x86_64_regs.rbx;
to->Rsi = from->integer.x86_64_regs.rsi;
to->Rdi = from->integer.x86_64_regs.rdi;
to->R8 = from->integer.x86_64_regs.r8;
to->R9 = from->integer.x86_64_regs.r9;
to->R10 = from->integer.x86_64_regs.r10;
to->R11 = from->integer.x86_64_regs.r11;
to->R12 = from->integer.x86_64_regs.r12;
to->R13 = from->integer.x86_64_regs.r13;
to->R14 = from->integer.x86_64_regs.r14;
to->R15 = from->integer.x86_64_regs.r15;
}
if (from->flags & SERVER_CTX_SEGMENTS)
{
to->ContextFlags |= CONTEXT_SEGMENTS;
to->SegDs = from->seg.x86_64_regs.ds;
to->SegEs = from->seg.x86_64_regs.es;
to->SegFs = from->seg.x86_64_regs.fs;
to->SegGs = from->seg.x86_64_regs.gs;
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= CONTEXT_FLOATING_POINT;
memcpy( &to->u.FltSave, from->fp.x86_64_regs.fpregs, sizeof(from->fp.x86_64_regs.fpregs) );
to->MxCsr = to->u.FltSave.MxCsr;
}
if (from->flags & SERVER_CTX_DEBUG_REGISTERS)
{
to->ContextFlags |= CONTEXT_DEBUG_REGISTERS;
to->Dr0 = from->debug.x86_64_regs.dr0;
to->Dr1 = from->debug.x86_64_regs.dr1;
to->Dr2 = from->debug.x86_64_regs.dr2;
to->Dr3 = from->debug.x86_64_regs.dr3;
to->Dr6 = from->debug.x86_64_regs.dr6;
to->Dr7 = from->debug.x86_64_regs.dr7;
}
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags;
BOOL self = (handle == GetCurrentThread());
if (!context) return STATUS_INVALID_PARAMETER;
needed_flags = context->ContextFlags;
/* debug registers require a server call */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64)) self = FALSE;
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self)
{
if (needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64))
{
amd64_thread_data()->dr0 = context->Dr0;
amd64_thread_data()->dr1 = context->Dr1;
amd64_thread_data()->dr2 = context->Dr2;
amd64_thread_data()->dr3 = context->Dr3;
amd64_thread_data()->dr6 = context->Dr6;
amd64_thread_data()->dr7 = context->Dr7;
}
}
return STATUS_SUCCESS;
}
/***********************************************************************
* wow64_get_server_context_flags
*/

12
dlls/ntdll/thread.c
View File

@ -777,6 +777,18 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
#ifndef __i386__
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
return unix_funcs->NtGetContextThread( handle, context );
}
#endif
/******************************************************************************
* NtSetLdtEntries (NTDLL.@)
* ZwSetLdtEntries (NTDLL.@)

1
dlls/ntdll/unix/loader.c
View File

@ -986,6 +986,7 @@ static struct unix_funcs unix_funcs =
NtClose,
NtCurrentTeb,
NtDuplicateObject,
NtGetContextThread,
NtSetContextThread,
NtSetLdtEntries,
get_main_args,

88
dlls/ntdll/unix/signal_arm.c
View File

@ -90,6 +90,63 @@ __ASM_GLOBAL_FUNC( set_cpu_context,
"pop {pc}" )
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_ARM; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_ARM; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->Sp = from->Sp;
to->Lr = from->Lr;
to->Pc = from->Pc;
to->Cpsr = from->Cpsr;
}
if (flags & CONTEXT_INTEGER)
{
to->R0 = from->R0;
to->R1 = from->R1;
to->R2 = from->R2;
to->R3 = from->R3;
to->R4 = from->R4;
to->R5 = from->R5;
to->R6 = from->R6;
to->R7 = from->R7;
to->R8 = from->R8;
to->R9 = from->R9;
to->R10 = from->R10;
to->R11 = from->R11;
to->R12 = from->R12;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->Fpscr = from->Fpscr;
memcpy( to->u.D, from->u.D, sizeof(to->u.D) );
}
}
/***********************************************************************
* context_to_server
*
@ -217,6 +274,37 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/**********************************************************************
* get_thread_ldt_entry
*/

86
dlls/ntdll/unix/signal_arm64.c
View File

@ -99,6 +99,61 @@ static void set_cpu_context( const CONTEXT *context )
raise( SIGUSR2 );
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_ARM64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_ARM64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->u.s.Fp = from->u.s.Fp;
to->u.s.Lr = from->u.s.Lr;
to->Sp = from->Sp;
to->Pc = from->Pc;
to->Cpsr = from->Cpsr;
}
if (flags & CONTEXT_INTEGER)
{
memcpy( to->u.X, from->u.X, sizeof(to->u.X) );
}
if (flags & CONTEXT_FLOATING_POINT)
{
memcpy( to->V, from->V, sizeof(to->V) );
to->Fpcr = from->Fpcr;
to->Fpsr = from->Fpsr;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
memcpy( to->Bcr, from->Bcr, sizeof(to->Bcr) );
memcpy( to->Bvr, from->Bvr, sizeof(to->Bvr) );
memcpy( to->Wcr, from->Wcr, sizeof(to->Wcr) );
memcpy( to->Wvr, from->Wvr, sizeof(to->Wvr) );
}
}
/***********************************************************************
* context_to_server
*
@ -220,6 +275,37 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/**********************************************************************
* get_thread_ldt_entry
*/

150
dlls/ntdll/unix/signal_i386.c
View File

@ -201,6 +201,53 @@ static inline int is_gdt_sel( WORD sel )
}
/***********************************************************************
* save_fpu
*
* Save the thread FPU context.
*/
static inline void save_fpu( CONTEXT *context )
{
struct
{
DWORD ControlWord;
DWORD StatusWord;
DWORD TagWord;
DWORD ErrorOffset;
DWORD ErrorSelector;
DWORD DataOffset;
DWORD DataSelector;
}
float_status;
context->ContextFlags |= CONTEXT_FLOATING_POINT;
__asm__ __volatile__( "fnsave %0; fwait" : "=m" (context->FloatSave) );
/* Reset unmasked exceptions status to avoid firing an exception. */
memcpy(&float_status, &context->FloatSave, sizeof(float_status));
float_status.StatusWord &= float_status.ControlWord | 0xffffff80;
__asm__ __volatile__( "fldenv %0" : : "m" (float_status) );
}
/***********************************************************************
* save_fpux
*
* Save the thread FPU extended context.
*/
static inline void save_fpux( CONTEXT *context )
{
/* we have to enforce alignment by hand */
char buffer[sizeof(XMM_SAVE_AREA32) + 16];
XMM_SAVE_AREA32 *state = (XMM_SAVE_AREA32 *)(((ULONG_PTR)buffer + 15) & ~15);
context->ContextFlags |= CONTEXT_EXTENDED_REGISTERS;
__asm__ __volatile__( "fxsave %0" : "=m" (*state) );
memcpy( context->ExtendedRegisters, state, sizeof(*state) );
}
/***********************************************************************
* restore_fpu
*
@ -329,6 +376,26 @@ void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_i386; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
return ret;
}
/***********************************************************************
* context_to_server
*
@ -501,6 +568,89 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*
* Note: we use a small assembly wrapper to save the necessary registers
* in case we are fetching the context of the current thread.
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags & ~CONTEXT_i386;
BOOL self = (handle == GetCurrentThread());
/* debug registers require a server call */
if (needed_flags & CONTEXT_DEBUG_REGISTERS) self = FALSE;
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self)
{
if (needed_flags & CONTEXT_INTEGER)
{
context->Eax = 0;
context->Ecx = 0;
context->Edx = 0;
/* other registers already set from asm wrapper */
context->ContextFlags |= CONTEXT_INTEGER;
}
if (needed_flags & CONTEXT_CONTROL)
{
context->SegCs = get_cs();
context->SegSs = get_ds();
/* other registers already set from asm wrapper */
context->ContextFlags |= CONTEXT_CONTROL;
}
if (needed_flags & CONTEXT_SEGMENTS)
{
context->SegDs = get_ds();
context->SegEs = get_ds();
context->SegFs = get_fs();
context->SegGs = get_gs();
context->ContextFlags |= CONTEXT_SEGMENTS;
}
if (needed_flags & CONTEXT_FLOATING_POINT) save_fpu( context );
if (needed_flags & CONTEXT_EXTENDED_REGISTERS) save_fpux( context );
/* FIXME: xstate */
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
{
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 (context->ContextFlags & (CONTEXT_INTEGER & ~CONTEXT_i386))
TRACE( "%p: eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n", handle,
context->Eax, context->Ebx, context->Ecx, context->Edx, context->Esi, context->Edi );
if (context->ContextFlags & (CONTEXT_CONTROL & ~CONTEXT_i386))
TRACE( "%p: ebp=%08x esp=%08x eip=%08x cs=%04x ss=%04x flags=%08x\n", handle,
context->Ebp, context->Esp, context->Eip, context->SegCs, context->SegSs, context->EFlags );
if (context->ContextFlags & (CONTEXT_SEGMENTS & ~CONTEXT_i386))
TRACE( "%p: ds=%04x es=%04x fs=%04x gs=%04x\n", handle,
context->SegDs, context->SegEs, context->SegFs, context->SegGs );
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))
TRACE( "%p: dr0=%08x dr1=%08x dr2=%08x dr3=%08x dr6=%08x dr7=%08x\n", handle,
context->Dr0, context->Dr1, context->Dr2, context->Dr3, context->Dr6, context->Dr7 );
return STATUS_SUCCESS;
}
/***********************************************************************
* LDT support
*/

141
dlls/ntdll/unix/signal_powerpc.c
View File

@ -77,6 +77,116 @@ static void set_cpu_context( const CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
if (flags & CONTEXT_CONTROL)
{
to->Msr = from->Msr;
to->Ctr = from->Ctr;
to->Iar = from->Iar;
to->Lr = from->Lr;
to->Dar = from->Dar;
to->Dsisr = from->Dsisr;
to->Trap = from->Trap;
}
if (flags & CONTEXT_INTEGER)
{
to->Gpr0 = from->Gpr0;
to->Gpr1 = from->Gpr1;
to->Gpr2 = from->Gpr2;
to->Gpr3 = from->Gpr3;
to->Gpr4 = from->Gpr4;
to->Gpr5 = from->Gpr5;
to->Gpr6 = from->Gpr6;
to->Gpr7 = from->Gpr7;
to->Gpr8 = from->Gpr8;
to->Gpr9 = from->Gpr9;
to->Gpr10 = from->Gpr10;
to->Gpr11 = from->Gpr11;
to->Gpr12 = from->Gpr12;
to->Gpr13 = from->Gpr13;
to->Gpr14 = from->Gpr14;
to->Gpr15 = from->Gpr15;
to->Gpr16 = from->Gpr16;
to->Gpr17 = from->Gpr17;
to->Gpr18 = from->Gpr18;
to->Gpr19 = from->Gpr19;
to->Gpr20 = from->Gpr20;
to->Gpr21 = from->Gpr21;
to->Gpr22 = from->Gpr22;
to->Gpr23 = from->Gpr23;
to->Gpr24 = from->Gpr24;
to->Gpr25 = from->Gpr25;
to->Gpr26 = from->Gpr26;
to->Gpr27 = from->Gpr27;
to->Gpr28 = from->Gpr28;
to->Gpr29 = from->Gpr29;
to->Gpr30 = from->Gpr30;
to->Gpr31 = from->Gpr31;
to->Xer = from->Xer;
to->Cr = from->Cr;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->Fpr0 = from->Fpr0;
to->Fpr1 = from->Fpr1;
to->Fpr2 = from->Fpr2;
to->Fpr3 = from->Fpr3;
to->Fpr4 = from->Fpr4;
to->Fpr5 = from->Fpr5;
to->Fpr6 = from->Fpr6;
to->Fpr7 = from->Fpr7;
to->Fpr8 = from->Fpr8;
to->Fpr9 = from->Fpr9;
to->Fpr10 = from->Fpr10;
to->Fpr11 = from->Fpr11;
to->Fpr12 = from->Fpr12;
to->Fpr13 = from->Fpr13;
to->Fpr14 = from->Fpr14;
to->Fpr15 = from->Fpr15;
to->Fpr16 = from->Fpr16;
to->Fpr17 = from->Fpr17;
to->Fpr18 = from->Fpr18;
to->Fpr19 = from->Fpr19;
to->Fpr20 = from->Fpr20;
to->Fpr21 = from->Fpr21;
to->Fpr22 = from->Fpr22;
to->Fpr23 = from->Fpr23;
to->Fpr24 = from->Fpr24;
to->Fpr25 = from->Fpr25;
to->Fpr26 = from->Fpr26;
to->Fpr27 = from->Fpr27;
to->Fpr28 = from->Fpr28;
to->Fpr29 = from->Fpr29;
to->Fpr30 = from->Fpr30;
to->Fpr31 = from->Fpr31;
to->Fpscr = from->Fpscr;
}
}
/***********************************************************************
* context_to_server
*
@ -296,6 +406,37 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags = context->ContextFlags;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self && needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
return STATUS_SUCCESS;
}
/**********************************************************************
* get_thread_ldt_entry
*/

128
dlls/ntdll/unix/signal_x86_64.c
View File

@ -219,6 +219,83 @@ void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context )
}
/***********************************************************************
* get_server_context_flags
*
* Convert CPU-specific flags to generic server flags
*/
static unsigned int get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
return ret;
}
/***********************************************************************
* copy_context
*
* Copy a register context according to the flags.
*/
static void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
{
flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
if (flags & CONTEXT_CONTROL)
{
to->Rbp = from->Rbp;
to->Rip = from->Rip;
to->Rsp = from->Rsp;
to->SegCs = from->SegCs;
to->SegSs = from->SegSs;
to->EFlags = from->EFlags;
}
if (flags & CONTEXT_INTEGER)
{
to->Rax = from->Rax;
to->Rcx = from->Rcx;
to->Rdx = from->Rdx;
to->Rbx = from->Rbx;
to->Rsi = from->Rsi;
to->Rdi = from->Rdi;
to->R8 = from->R8;
to->R9 = from->R9;
to->R10 = from->R10;
to->R11 = from->R11;
to->R12 = from->R12;
to->R13 = from->R13;
to->R14 = from->R14;
to->R15 = from->R15;
}
if (flags & CONTEXT_SEGMENTS)
{
to->SegDs = from->SegDs;
to->SegEs = from->SegEs;
to->SegFs = from->SegFs;
to->SegGs = from->SegGs;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->MxCsr = from->MxCsr;
to->u.FltSave = from->u.FltSave;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
to->Dr0 = from->Dr0;
to->Dr1 = from->Dr1;
to->Dr2 = from->Dr2;
to->Dr3 = from->Dr3;
to->Dr6 = from->Dr6;
to->Dr7 = from->Dr7;
}
}
/***********************************************************************
* context_to_server
*
@ -382,6 +459,57 @@ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
NTSTATUS ret;
DWORD needed_flags;
BOOL self = (handle == GetCurrentThread());
if (!context) return STATUS_INVALID_PARAMETER;
needed_flags = context->ContextFlags;
/* debug registers require a server call */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64)) self = FALSE;
if (!self)
{
context_t server_context;
unsigned int server_flags = get_server_context_flags( context->ContextFlags );
if ((ret = get_thread_context( handle, &server_context, server_flags, &self ))) return ret;
if ((ret = context_from_server( context, &server_context ))) return ret;
needed_flags &= ~context->ContextFlags;
}
if (self)
{
if (needed_flags)
{
CONTEXT ctx;
RtlCaptureContext( &ctx );
copy_context( context, &ctx, ctx.ContextFlags & needed_flags );
context->ContextFlags |= ctx.ContextFlags & needed_flags;
}
/* update the cached version of the debug registers */
if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64))
{
amd64_thread_data()->dr0 = context->Dr0;
amd64_thread_data()->dr1 = context->Dr1;
amd64_thread_data()->dr2 = context->Dr2;
amd64_thread_data()->dr3 = context->Dr3;
amd64_thread_data()->dr6 = context->Dr6;
amd64_thread_data()->dr7 = context->Dr7;
}
}
return STATUS_SUCCESS;
}
/**********************************************************************
* get_thread_ldt_entry
*/

40
dlls/ntdll/unix/thread.c
View File

@ -168,3 +168,43 @@ NTSTATUS set_thread_context( HANDLE handle, const context_t *context, BOOL *self
return ret;
}
/***********************************************************************
* get_thread_context
*/
NTSTATUS get_thread_context( HANDLE handle, context_t *context, unsigned int flags, BOOL *self )
{
NTSTATUS ret;
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = flags;
wine_server_set_reply( req, context, sizeof(*context) );
ret = wine_server_call( req );
*self = reply->self;
handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -1000000;
if (NtWaitForSingleObject( handle, FALSE, &timeout ))
{
NtClose( handle );
return STATUS_ACCESS_DENIED;
}
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = flags;
wine_server_set_reply( req, context, sizeof(*context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
}
return ret;
}

1
dlls/ntdll/unix/unix_private.h
View File

@ -104,6 +104,7 @@ extern void start_server( BOOL debug ) DECLSPEC_HIDDEN;
extern NTSTATUS context_to_server( context_t *to, const CONTEXT *from ) DECLSPEC_HIDDEN;
extern NTSTATUS context_from_server( CONTEXT *to, const context_t *from ) DECLSPEC_HIDDEN;
extern NTSTATUS set_thread_context( HANDLE handle, const context_t *context, BOOL *self ) DECLSPEC_HIDDEN;
extern NTSTATUS get_thread_context( HANDLE handle, context_t *context, unsigned int flags, BOOL *self ) DECLSPEC_HIDDEN;
extern void signal_init_threading(void) DECLSPEC_HIDDEN;
extern NTSTATUS signal_alloc_thread( TEB *teb ) DECLSPEC_HIDDEN;

3
dlls/ntdll/unixlib.h
View File

@ -27,7 +27,7 @@
struct ldt_copy;
/* increment this when you change the function table */
#define NTDLL_UNIXLIB_VERSION 14
#define NTDLL_UNIXLIB_VERSION 15
struct unix_funcs
{
@ -37,6 +37,7 @@ struct unix_funcs
NTSTATUS (WINAPI *NtDuplicateObject)( HANDLE source_process, HANDLE source,
HANDLE dest_process, HANDLE *dest,
ACCESS_MASK access, ULONG attributes, ULONG options );
NTSTATUS (WINAPI *NtGetContextThread)( HANDLE handle, CONTEXT *context );
NTSTATUS (WINAPI *NtSetContextThread)( HANDLE handle, const CONTEXT *context );
NTSTATUS (WINAPI *NtSetLdtEntries)( ULONG sel1, LDT_ENTRY entry1, ULONG sel2, LDT_ENTRY entry2 );