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Commit 5e8234b3 authored by Alexandre Julliard's avatar Alexandre Julliard
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ntdll: Implement stack unwinding on ARM64.

Signed-off-by: 's avatarAlexandre Julliard <julliard@winehq.org>
parent d2e4a6fa
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Showing with 551 additions and 40 deletions
dlls/ntdll/signal_arm64.c
View file @ 5e8234b3
......@@ -47,6 +47,10 @@
#ifdef HAVE_SYS_UCONTEXT_H
# include <sys/ucontext.h>
#endif
#ifdef HAVE_LIBUNWIND
# define UNW_LOCAL_ONLY
# include <libunwind.h>
#endif
#define NONAMELESSUNION
#define NONAMELESSSTRUCT
......@@ -137,17 +141,38 @@ static inline int dispatch_signal(unsigned int sig)
return handlers[sig](sig);
}
/***********************************************************************
* get_signal_stack
*
* Get the base of the signal stack for the current thread.
*/
static inline void *get_signal_stack(void)
{
return (char *)NtCurrentTeb() + teb_size;
}
/*******************************************************************
* is_valid_frame
*/
static inline BOOL is_valid_frame( void *frame )
static inline BOOL is_valid_frame( ULONG_PTR frame )
{
if ((ULONG_PTR)frame & 3) return FALSE;
return (frame >= NtCurrentTeb()->Tib.StackLimit &&
if (frame & 7) return FALSE;
return ((void *)frame >= NtCurrentTeb()->Tib.StackLimit &&
(void **)frame < (void **)NtCurrentTeb()->Tib.StackBase - 1);
}
/***********************************************************************
* is_inside_signal_stack
*
* Check if pointer is inside the signal stack.
*/
static inline BOOL is_inside_signal_stack( void *ptr )
{
return ((char *)ptr >= (char *)get_signal_stack() &&
(char *)ptr < (char *)get_signal_stack() + signal_stack_size);
}
/***********************************************************************
* save_context
*
* Set the register values from a sigcontext.
......@@ -525,60 +550,409 @@ static void WINAPI raise_generic_exception( EXCEPTION_RECORD *rec, CONTEXT *cont
raise_status( status, rec );
}
/***********************************************************************
* libunwind_virtual_unwind
*
* Equivalent of RtlVirtualUnwind for builtin modules.
*/
static NTSTATUS libunwind_virtual_unwind( ULONG_PTR ip, ULONG_PTR *frame, CONTEXT *context,
PEXCEPTION_ROUTINE *handler, void **handler_data )
{
#ifdef HAVE_LIBUNWIND
unw_context_t unw_context;
unw_cursor_t cursor;
unw_proc_info_t info;
int rc;
memcpy( unw_context.uc_mcontext.regs, context->u.X, sizeof(context->u.X) );
unw_context.uc_mcontext.sp = context->Sp;
unw_context.uc_mcontext.pc = context->Pc;
rc = unw_init_local( &cursor, &unw_context );
if (rc != UNW_ESUCCESS)
{
WARN( "setup failed: %d\n", rc );
return STATUS_INVALID_DISPOSITION;
}
rc = unw_get_proc_info( &cursor, &info );
if (rc != UNW_ESUCCESS && rc != UNW_ENOINFO)
{
WARN( "failed to get info: %d\n", rc );
return STATUS_INVALID_DISPOSITION;
}
if (rc == UNW_ENOINFO || ip < info.start_ip || ip > info.end_ip)
{
WARN( "no info found for %lx ip %lx-%lx rc %d\n", ip, info.start_ip, info.end_ip, rc );
return STATUS_SUCCESS;
}
TRACE( "ip %#lx function %#lx-%#lx personality %#lx lsda %#lx fde %#lx\n",
ip, (unsigned long)info.start_ip, (unsigned long)info.end_ip, (unsigned long)info.handler,
(unsigned long)info.lsda, (unsigned long)info.unwind_info );
rc = unw_step( &cursor );
if (rc < 0)
{
WARN( "failed to unwind: %d\n", rc );
return STATUS_INVALID_DISPOSITION;
}
*handler = (void *)info.handler;
*handler_data = (void *)info.lsda;
*frame = context->Sp;
context->Pc = context->u.s.Lr;
unw_get_reg( &cursor, UNW_AARCH64_X0, (unw_word_t *)&context->u.s.X0 );
unw_get_reg( &cursor, UNW_AARCH64_X1, (unw_word_t *)&context->u.s.X1 );
unw_get_reg( &cursor, UNW_AARCH64_X2, (unw_word_t *)&context->u.s.X2 );
unw_get_reg( &cursor, UNW_AARCH64_X3, (unw_word_t *)&context->u.s.X3 );
unw_get_reg( &cursor, UNW_AARCH64_X4, (unw_word_t *)&context->u.s.X4 );
unw_get_reg( &cursor, UNW_AARCH64_X5, (unw_word_t *)&context->u.s.X5 );
unw_get_reg( &cursor, UNW_AARCH64_X6, (unw_word_t *)&context->u.s.X6 );
unw_get_reg( &cursor, UNW_AARCH64_X7, (unw_word_t *)&context->u.s.X7 );
unw_get_reg( &cursor, UNW_AARCH64_X8, (unw_word_t *)&context->u.s.X8 );
unw_get_reg( &cursor, UNW_AARCH64_X9, (unw_word_t *)&context->u.s.X9 );
unw_get_reg( &cursor, UNW_AARCH64_X10, (unw_word_t *)&context->u.s.X10 );
unw_get_reg( &cursor, UNW_AARCH64_X11, (unw_word_t *)&context->u.s.X11 );
unw_get_reg( &cursor, UNW_AARCH64_X12, (unw_word_t *)&context->u.s.X12 );
unw_get_reg( &cursor, UNW_AARCH64_X13, (unw_word_t *)&context->u.s.X13 );
unw_get_reg( &cursor, UNW_AARCH64_X14, (unw_word_t *)&context->u.s.X14 );
unw_get_reg( &cursor, UNW_AARCH64_X15, (unw_word_t *)&context->u.s.X15 );
unw_get_reg( &cursor, UNW_AARCH64_X16, (unw_word_t *)&context->u.s.X16 );
unw_get_reg( &cursor, UNW_AARCH64_X17, (unw_word_t *)&context->u.s.X17 );
unw_get_reg( &cursor, UNW_AARCH64_X18, (unw_word_t *)&context->u.s.X18 );
unw_get_reg( &cursor, UNW_AARCH64_X19, (unw_word_t *)&context->u.s.X19 );
unw_get_reg( &cursor, UNW_AARCH64_X20, (unw_word_t *)&context->u.s.X20 );
unw_get_reg( &cursor, UNW_AARCH64_X21, (unw_word_t *)&context->u.s.X21 );
unw_get_reg( &cursor, UNW_AARCH64_X22, (unw_word_t *)&context->u.s.X22 );
unw_get_reg( &cursor, UNW_AARCH64_X23, (unw_word_t *)&context->u.s.X23 );
unw_get_reg( &cursor, UNW_AARCH64_X24, (unw_word_t *)&context->u.s.X24 );
unw_get_reg( &cursor, UNW_AARCH64_X25, (unw_word_t *)&context->u.s.X25 );
unw_get_reg( &cursor, UNW_AARCH64_X26, (unw_word_t *)&context->u.s.X26 );
unw_get_reg( &cursor, UNW_AARCH64_X27, (unw_word_t *)&context->u.s.X27 );
unw_get_reg( &cursor, UNW_AARCH64_X28, (unw_word_t *)&context->u.s.X28 );
unw_get_reg( &cursor, UNW_AARCH64_X29, (unw_word_t *)&context->u.s.Fp );
unw_get_reg( &cursor, UNW_AARCH64_X30, (unw_word_t *)&context->u.s.Lr );
unw_get_reg( &cursor, UNW_AARCH64_SP, (unw_word_t *)&context->Sp );
TRACE( "next function pc=%016lx\n", context->Pc );
TRACE(" x0=%016lx x1=%016lx x2=%016lx x3=%016lx\n",
context->u.s.X0, context->u.s.X1, context->u.s.X2, context->u.s.X3 );
TRACE(" x4=%016lx x5=%016lx x6=%016lx x7=%016lx\n",
context->u.s.X4, context->u.s.X5, context->u.s.X6, context->u.s.X7 );
TRACE(" x8=%016lx x9=%016lx x10=%016lx x11=%016lx\n",
context->u.s.X8, context->u.s.X9, context->u.s.X10, context->u.s.X11 );
TRACE(" x12=%016lx x13=%016lx x14=%016lx x15=%016lx\n",
context->u.s.X12, context->u.s.X13, context->u.s.X14, context->u.s.X15 );
TRACE(" x16=%016lx x17=%016lx x18=%016lx x19=%016lx\n",
context->u.s.X16, context->u.s.X17, context->u.s.X18, context->u.s.X19 );
TRACE(" x20=%016lx x21=%016lx x22=%016lx x23=%016lx\n",
context->u.s.X20, context->u.s.X21, context->u.s.X22, context->u.s.X23 );
TRACE(" x24=%016lx x25=%016lx x26=%016lx x27=%016lx\n",
context->u.s.X24, context->u.s.X25, context->u.s.X26, context->u.s.X27 );
TRACE(" x28=%016lx fp=%016lx lr=%016lx sp=%016lx\n",
context->u.s.X28, context->u.s.Fp, context->u.s.Lr, context->Sp );
#endif
return STATUS_SUCCESS;
}
/**********************************************************************
* virtual_unwind
*/
static NTSTATUS virtual_unwind( ULONG type, DISPATCHER_CONTEXT *dispatch, CONTEXT *context )
{
LDR_MODULE *module;
NTSTATUS status;
dispatch->ImageBase = 0;
dispatch->ScopeIndex = 0;
dispatch->EstablisherFrame = 0;
dispatch->ControlPc = context->Pc;
/* first look for PE exception information */
if ((dispatch->FunctionEntry = lookup_function_info( context->Pc, &dispatch->ImageBase, &module )))
{
dispatch->LanguageHandler = RtlVirtualUnwind( type, dispatch->ImageBase, context->Pc,
dispatch->FunctionEntry, context,
&dispatch->HandlerData, &dispatch->EstablisherFrame,
NULL );
return STATUS_SUCCESS;
}
/* then look for host system exception information */
if (!module || (module->Flags & LDR_WINE_INTERNAL))
{
status = libunwind_virtual_unwind( context->Pc, &dispatch->EstablisherFrame, context,
&dispatch->LanguageHandler, &dispatch->HandlerData );
if (status != STATUS_SUCCESS) return status;
if (dispatch->EstablisherFrame)
{
dispatch->FunctionEntry = NULL;
if (dispatch->LanguageHandler && !module)
{
FIXME( "calling personality routine in system library not supported yet\n" );
dispatch->LanguageHandler = NULL;
}
return STATUS_SUCCESS;
}
}
else WARN( "exception data not found in %s\n", debugstr_w(module->BaseDllName.Buffer) );
dispatch->EstablisherFrame = context->u.s.Fp;
dispatch->LanguageHandler = NULL;
context->Pc = context->u.s.Lr;
return STATUS_SUCCESS;
}
struct unwind_exception_frame
{
EXCEPTION_REGISTRATION_RECORD frame;
DISPATCHER_CONTEXT *dispatch;
};
/**********************************************************************
* unwind_exception_handler
*
* Handler for exceptions happening while calling an unwind handler.
*/
static DWORD __cdecl unwind_exception_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
struct unwind_exception_frame *unwind_frame = (struct unwind_exception_frame *)frame;
DISPATCHER_CONTEXT *dispatch = (DISPATCHER_CONTEXT *)dispatcher;
/* copy the original dispatcher into the current one, except for the TargetIp */
dispatch->ControlPc = unwind_frame->dispatch->ControlPc;
dispatch->ImageBase = unwind_frame->dispatch->ImageBase;
dispatch->FunctionEntry = unwind_frame->dispatch->FunctionEntry;
dispatch->EstablisherFrame = unwind_frame->dispatch->EstablisherFrame;
dispatch->ContextRecord = unwind_frame->dispatch->ContextRecord;
dispatch->LanguageHandler = unwind_frame->dispatch->LanguageHandler;
dispatch->HandlerData = unwind_frame->dispatch->HandlerData;
dispatch->HistoryTable = unwind_frame->dispatch->HistoryTable;
dispatch->ScopeIndex = unwind_frame->dispatch->ScopeIndex;
TRACE( "detected collided unwind\n" );
return ExceptionCollidedUnwind;
}
/**********************************************************************
* call_unwind_handler
*
* Call a single unwind handler.
*/
static DWORD call_unwind_handler( EXCEPTION_RECORD *rec, DISPATCHER_CONTEXT *dispatch )
{
struct unwind_exception_frame frame;
DWORD res;
frame.frame.Handler = unwind_exception_handler;
frame.dispatch = dispatch;
__wine_push_frame( &frame.frame );
TRACE( "calling handler %p (rec=%p, frame=0x%lx context=%p, dispatch=%p)\n",
dispatch->LanguageHandler, rec, dispatch->EstablisherFrame, dispatch->ContextRecord, dispatch );
res = dispatch->LanguageHandler( rec, (void *)dispatch->EstablisherFrame, dispatch->ContextRecord, dispatch );
TRACE( "handler %p returned %x\n", dispatch->LanguageHandler, res );
__wine_pop_frame( &frame.frame );
switch (res)
{
case ExceptionContinueSearch:
case ExceptionCollidedUnwind:
break;
default:
raise_status( STATUS_INVALID_DISPOSITION, rec );
break;
}
return res;
}
/**********************************************************************
* call_teb_unwind_handler
*
* Call a single unwind handler from the TEB chain.
*/
static DWORD call_teb_unwind_handler( EXCEPTION_RECORD *rec, DISPATCHER_CONTEXT *dispatch,
EXCEPTION_REGISTRATION_RECORD *teb_frame )
{
DWORD res;
TRACE( "calling TEB handler %p (rec=%p, frame=%p context=%p, dispatch=%p)\n",
teb_frame->Handler, rec, teb_frame, dispatch->ContextRecord, dispatch );
res = teb_frame->Handler( rec, teb_frame, dispatch->ContextRecord, (EXCEPTION_REGISTRATION_RECORD**)dispatch );
TRACE( "handler at %p returned %u\n", teb_frame->Handler, res );
switch (res)
{
case ExceptionContinueSearch:
case ExceptionCollidedUnwind:
break;
default:
raise_status( STATUS_INVALID_DISPOSITION, rec );
break;
}
return res;
}
static DWORD __cdecl nested_exception_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
if (rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND)) return ExceptionContinueSearch;
/* FIXME */
return ExceptionNestedException;
}
/**********************************************************************
* call_handler
*
* Call a single exception handler.
* FIXME: Handle nested exceptions.
*/
static DWORD call_handler( EXCEPTION_RECORD *rec, CONTEXT *context, DISPATCHER_CONTEXT *dispatch )
{
EXCEPTION_REGISTRATION_RECORD frame;
DWORD res;
frame.Handler = nested_exception_handler;
__wine_push_frame( &frame );
TRACE( "calling handler %p (rec=%p, frame=0x%lx context=%p, dispatch=%p)\n",
dispatch->LanguageHandler, rec, dispatch->EstablisherFrame, dispatch->ContextRecord, dispatch );
res = dispatch->LanguageHandler( rec, (void *)dispatch->EstablisherFrame, context, dispatch );
TRACE( "handler at %p returned %u\n", dispatch->LanguageHandler, res );
__wine_pop_frame( &frame );
return res;
}
/**********************************************************************
* call_stack_handlers
* call_teb_handler
*
* Call the stack handlers chain.
* Call a single exception handler from the TEB chain.
* FIXME: Handle nested exceptions.
*/
static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
static DWORD call_teb_handler( EXCEPTION_RECORD *rec, CONTEXT *context, DISPATCHER_CONTEXT *dispatch,
EXCEPTION_REGISTRATION_RECORD *teb_frame )
{
EXCEPTION_REGISTRATION_RECORD *frame, *dispatch, *nested_frame;
DWORD res;
frame = NtCurrentTeb()->Tib.ExceptionList;
nested_frame = NULL;
while (frame != (EXCEPTION_REGISTRATION_RECORD*)~0UL)
TRACE( "calling TEB handler %p (rec=%p, frame=%p context=%p, dispatch=%p)\n",
teb_frame->Handler, rec, teb_frame, dispatch->ContextRecord, dispatch );
res = teb_frame->Handler( rec, teb_frame, context, (EXCEPTION_REGISTRATION_RECORD**)dispatch );
TRACE( "handler at %p returned %u\n", teb_frame->Handler, res );
return res;
}
/**********************************************************************
* call_function_handlers
*
* Call the per-function handlers.
*/
static NTSTATUS call_function_handlers( EXCEPTION_RECORD *rec, CONTEXT *orig_context )
{
EXCEPTION_REGISTRATION_RECORD *teb_frame = NtCurrentTeb()->Tib.ExceptionList;
UNWIND_HISTORY_TABLE table;
DISPATCHER_CONTEXT dispatch;
CONTEXT context;
NTSTATUS status;
context = *orig_context;
dispatch.TargetPc = 0;
dispatch.ContextRecord = &context;
dispatch.HistoryTable = &table;
for (;;)
{
/* Check frame address */
if (!is_valid_frame( frame ))
status = virtual_unwind( UNW_FLAG_EHANDLER, &dispatch, &context );
if (status != STATUS_SUCCESS) return status;
unwind_done:
if (!dispatch.EstablisherFrame) break;
if (!is_valid_frame( dispatch.EstablisherFrame ))
{
ERR( "invalid frame %lx (%p-%p)\n", dispatch.EstablisherFrame,
NtCurrentTeb()->Tib.StackLimit, NtCurrentTeb()->Tib.StackBase );
rec->ExceptionFlags |= EH_STACK_INVALID;
break;
}
/* Call handler */
TRACE( "calling handler at %p code=%x flags=%x\n",
frame->Handler, rec->ExceptionCode, rec->ExceptionFlags );
res = frame->Handler( rec, frame, context, &dispatch );
TRACE( "handler at %p returned %x\n", frame->Handler, res );
if (frame == nested_frame)
if (dispatch.LanguageHandler)
{
/* no longer nested */
nested_frame = NULL;
rec->ExceptionFlags &= ~EH_NESTED_CALL;
switch (call_handler( rec, orig_context, &dispatch ))
{
case ExceptionContinueExecution:
if (rec->ExceptionFlags & EH_NONCONTINUABLE) return STATUS_NONCONTINUABLE_EXCEPTION;
return STATUS_SUCCESS;
case ExceptionContinueSearch:
break;
case ExceptionNestedException:
FIXME( "nested exception\n" );
break;
case ExceptionCollidedUnwind: {
ULONG64 frame;
context = *dispatch.ContextRecord;
dispatch.ContextRecord = &context;
RtlVirtualUnwind( UNW_FLAG_NHANDLER, dispatch.ImageBase,
dispatch.ControlPc, dispatch.FunctionEntry,
&context, NULL, &frame, NULL );
goto unwind_done;
}
default:
return STATUS_INVALID_DISPOSITION;
}
}
switch(res)
/* hack: call wine handlers registered in the tib list */
else while ((ULONG64)teb_frame < context.Sp)
{
case ExceptionContinueExecution:
if (!(rec->ExceptionFlags & EH_NONCONTINUABLE)) return STATUS_SUCCESS;
return STATUS_NONCONTINUABLE_EXCEPTION;
case ExceptionContinueSearch:
break;
case ExceptionNestedException:
if (nested_frame < dispatch) nested_frame = dispatch;
rec->ExceptionFlags |= EH_NESTED_CALL;
break;
default:
return STATUS_INVALID_DISPOSITION;
TRACE( "found wine frame %p rsp %lx handler %p\n",
teb_frame, context.Sp, teb_frame->Handler );
dispatch.EstablisherFrame = (ULONG64)teb_frame;
switch (call_teb_handler( rec, orig_context, &dispatch, teb_frame ))
{
case ExceptionContinueExecution:
if (rec->ExceptionFlags & EH_NONCONTINUABLE) return STATUS_NONCONTINUABLE_EXCEPTION;
return STATUS_SUCCESS;
case ExceptionContinueSearch:
break;
case ExceptionNestedException:
FIXME( "nested exception\n" );
break;
case ExceptionCollidedUnwind: {
ULONG64 frame;
context = *dispatch.ContextRecord;
dispatch.ContextRecord = &context;
RtlVirtualUnwind( UNW_FLAG_NHANDLER, dispatch.ImageBase,
dispatch.ControlPc, dispatch.FunctionEntry,
&context, NULL, &frame, NULL );
teb_frame = teb_frame->Prev;
goto unwind_done;
}
default:
return STATUS_INVALID_DISPOSITION;
}
teb_frame = teb_frame->Prev;
}
frame = frame->Prev;
if (context.Sp == (ULONG64)NtCurrentTeb()->Tib.StackBase) break;
}
return STATUS_UNHANDLED_EXCEPTION;
}
/*******************************************************************
* raise_exception
*
......@@ -637,7 +1011,7 @@ static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL f
if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
return STATUS_SUCCESS;
if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
if ((status = call_function_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
return status;
}
......@@ -1378,13 +1752,150 @@ PVOID WINAPI RtlVirtualUnwind( ULONG type, ULONG_PTR base, ULONG_PTR pc,
}
/*******************************************************************
* RtlUnwindEx (NTDLL.@)
*/
void WINAPI RtlUnwindEx( PVOID end_frame, PVOID target_ip, EXCEPTION_RECORD *rec,
PVOID retval, CONTEXT *context, UNWIND_HISTORY_TABLE *table )
{
EXCEPTION_REGISTRATION_RECORD *teb_frame = NtCurrentTeb()->Tib.ExceptionList;
EXCEPTION_RECORD record;
DISPATCHER_CONTEXT dispatch;
CONTEXT new_context;
NTSTATUS status;
DWORD i;
RtlCaptureContext( context );
new_context = *context;
/* build an exception record, if we do not have one */
if (!rec)
{
record.ExceptionCode = STATUS_UNWIND;
record.ExceptionFlags = 0;
record.ExceptionRecord = NULL;
record.ExceptionAddress = (void *)context->Pc;
record.NumberParameters = 0;
rec = &record;
}
rec->ExceptionFlags |= EH_UNWINDING | (end_frame ? 0 : EH_EXIT_UNWIND);
TRACE( "code=%x flags=%x end_frame=%p target_ip=%p pc=%016lx\n",
rec->ExceptionCode, rec->ExceptionFlags, end_frame, target_ip, context->Pc );
for (i = 0; i < min( EXCEPTION_MAXIMUM_PARAMETERS, rec->NumberParameters ); i++)
TRACE( " info[%d]=%016lx\n", i, rec->ExceptionInformation[i] );
TRACE(" x0=%016lx x1=%016lx x2=%016lx x3=%016lx\n",
context->u.s.X0, context->u.s.X1, context->u.s.X2, context->u.s.X3 );
TRACE(" x4=%016lx x5=%016lx x6=%016lx x7=%016lx\n",
context->u.s.X4, context->u.s.X5, context->u.s.X6, context->u.s.X7 );
TRACE(" x8=%016lx x9=%016lx x10=%016lx x11=%016lx\n",
context->u.s.X8, context->u.s.X9, context->u.s.X10, context->u.s.X11 );
TRACE(" x12=%016lx x13=%016lx x14=%016lx x15=%016lx\n",
context->u.s.X12, context->u.s.X13, context->u.s.X14, context->u.s.X15 );
TRACE(" x16=%016lx x17=%016lx x18=%016lx x19=%016lx\n",
context->u.s.X16, context->u.s.X17, context->u.s.X18, context->u.s.X19 );
TRACE(" x20=%016lx x21=%016lx x22=%016lx x23=%016lx\n",
context->u.s.X20, context->u.s.X21, context->u.s.X22, context->u.s.X23 );
TRACE(" x24=%016lx x25=%016lx x26=%016lx x27=%016lx\n",
context->u.s.X24, context->u.s.X25, context->u.s.X26, context->u.s.X27 );
TRACE(" x28=%016lx fp=%016lx lr=%016lx sp=%016lx\n",
context->u.s.X28, context->u.s.Fp, context->u.s.Lr, context->Sp );
dispatch.EstablisherFrame = context->Sp;
dispatch.TargetPc = (ULONG64)target_ip;
dispatch.ContextRecord = context;
dispatch.HistoryTable = table;
for (;;)
{
status = virtual_unwind( UNW_FLAG_UHANDLER, &dispatch, &new_context );
if (status != STATUS_SUCCESS) raise_status( status, rec );
unwind_done:
if (!dispatch.EstablisherFrame) break;
if (is_inside_signal_stack( (void *)dispatch.EstablisherFrame ))
{
TRACE( "frame %lx is inside signal stack (%p-%p)\n", dispatch.EstablisherFrame,
get_signal_stack(), (char *)get_signal_stack() + signal_stack_size );
*context = new_context;
continue;
}
if (!is_valid_frame( dispatch.EstablisherFrame ))
{
ERR( "invalid frame %lx (%p-%p)\n", dispatch.EstablisherFrame,
NtCurrentTeb()->Tib.StackLimit, NtCurrentTeb()->Tib.StackBase );
rec->ExceptionFlags |= EH_STACK_INVALID;
break;
}
if (dispatch.LanguageHandler)
{
if (end_frame && (dispatch.EstablisherFrame > (ULONG64)end_frame))
{
ERR( "invalid end frame %lx/%p\n", dispatch.EstablisherFrame, end_frame );
raise_status( STATUS_INVALID_UNWIND_TARGET, rec );
}
if (dispatch.EstablisherFrame == (ULONG64)end_frame) rec->ExceptionFlags |= EH_TARGET_UNWIND;
if (call_unwind_handler( rec, &dispatch ) == ExceptionCollidedUnwind)
{
ULONG64 frame;
*context = new_context = *dispatch.ContextRecord;
dispatch.ContextRecord = context;
RtlVirtualUnwind( UNW_FLAG_NHANDLER, dispatch.ImageBase,
dispatch.ControlPc, dispatch.FunctionEntry,
&new_context, NULL, &frame, NULL );
rec->ExceptionFlags |= EH_COLLIDED_UNWIND;
goto unwind_done;
}
rec->ExceptionFlags &= ~EH_COLLIDED_UNWIND;
}
else /* hack: call builtin handlers registered in the tib list */
{
DWORD64 backup_frame = dispatch.EstablisherFrame;
while ((ULONG64)teb_frame < new_context.Sp && (ULONG64)teb_frame < (ULONG64)end_frame)
{
TRACE( "found builtin frame %p handler %p\n", teb_frame, teb_frame->Handler );
dispatch.EstablisherFrame = (ULONG64)teb_frame;
if (call_teb_unwind_handler( rec, &dispatch, teb_frame ) == ExceptionCollidedUnwind)
{
ULONG64 frame;
teb_frame = __wine_pop_frame( teb_frame );
*context = new_context = *dispatch.ContextRecord;
dispatch.ContextRecord = context;
RtlVirtualUnwind( UNW_FLAG_NHANDLER, dispatch.ImageBase,
dispatch.ControlPc, dispatch.FunctionEntry,
&new_context, NULL, &frame, NULL );
rec->ExceptionFlags |= EH_COLLIDED_UNWIND;
goto unwind_done;
}
teb_frame = __wine_pop_frame( teb_frame );
}
if ((ULONG64)teb_frame == (ULONG64)end_frame && (ULONG64)end_frame < new_context.Sp) break;
dispatch.EstablisherFrame = backup_frame;
}
if (dispatch.EstablisherFrame == (ULONG64)end_frame) break;
*context = new_context;
}
context->u.s.X0 = (ULONG64)retval;
context->Pc = (ULONG64)target_ip;
set_cpu_context( context );
}
/***********************************************************************
* RtlUnwind (NTDLL.@)
*/
void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
void WINAPI RtlUnwind( void *frame, void *target_ip, EXCEPTION_RECORD *rec, void *retval )
{
FIXME( "Not implemented on ARM64\n" );
CONTEXT context;
RtlUnwindEx( frame, target_ip, rec, retval, &context, NULL );
}
/*******************************************************************
......
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