ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ntdll: Handle page faults in signal handler on i386. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2019-09-12 20:36:50 +02:00
parent 58139dcb12
commit df3fad6383
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
dlls/ntdll/signal_i386.c
View File

@ -1913,11 +1913,7 @@ static void WINAPI raise_segv_exception( EXCEPTION_RECORD *rec, CONTEXT *context
case EXCEPTION_ACCESS_VIOLATION:
if (rec->NumberParameters == 2)
{
if (!(rec->ExceptionCode = virtual_handle_fault( (void *)rec->ExceptionInformation[1],
rec->ExceptionInformation[0], FALSE )))
goto done;
if (rec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT)
if (rec->ExceptionInformation[0] == EXCEPTION_EXECUTE_FAULT)
{
ULONG flags;
NtQueryInformationProcess( GetCurrentProcess(), ProcessExecuteFlags,
@ -2066,10 +2062,12 @@ static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
}
break;
case TRAP_x86_PAGEFLT: /* Page fault */
stack->rec.ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
stack->rec.NumberParameters = 2;
stack->rec.ExceptionInformation[0] = (get_error_code(context) >> 1) & 0x09;
stack->rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
if (!(stack->rec.ExceptionCode = virtual_handle_fault( (void *)stack->rec.ExceptionInformation[1],
stack->rec.ExceptionInformation[0], FALSE )))
return;
break;
case TRAP_x86_ALIGNFLT: /* Alignment check exception */
/* FIXME: pass through exception handler first? */