ntdll: Add ARM64 signal handling.
This commit is contained in:
André Hentschel
Alexandre Julliard
parent
d11e72f925
commit
da9fbef953
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@ -38,6 +38,7 @@ C_SRCS = \
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serial.c \
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server.c \
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signal_arm.c \
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signal_arm64.c \
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signal_i386.c \
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signal_powerpc.c \
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signal_sparc.c \
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@ -145,7 +145,7 @@
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@ stdcall NtCreateTimer(ptr long ptr long)
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@ stub NtCreateToken
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# @ stub NtCreateWaitablePort
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@ stdcall -arch=win32 NtCurrentTeb()
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@ stdcall -arch=win32,arm64 NtCurrentTeb()
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# @ stub NtDebugActiveProcess
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# @ stub NtDebugContinue
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@ stdcall NtDelayExecution(long ptr)
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@ -0,0 +1,901 @@
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/*
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* ARM64 signal handling routines
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*
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* Copyright 2010-2013 André Hentschel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef __aarch64__
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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# include <sys/param.h>
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#endif
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#ifdef HAVE_SYSCALL_H
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# include <syscall.h>
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#else
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# ifdef HAVE_SYS_SYSCALL_H
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# include <sys/syscall.h>
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# endif
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#endif
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#ifdef HAVE_SYS_SIGNAL_H
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# include <sys/signal.h>
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#endif
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "wine/library.h"
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#include "wine/exception.h"
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#include "ntdll_misc.h"
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#include "wine/debug.h"
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#include "winnt.h"
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WINE_DEFAULT_DEBUG_CHANNEL(seh);
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static pthread_key_t teb_key;
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/***********************************************************************
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* signal context platform-specific definitions
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*/
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#ifdef linux
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typedef ucontext_t SIGCONTEXT;
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/* All Registers access - only for local access */
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# define REG_sig(reg_name, context) ((context)->uc_mcontext.reg_name)
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# define REGn_sig(reg_num, context) ((context)->uc_mcontext.regs[reg_num])
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/* Special Registers access */
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# define SP_sig(context) REG_sig(sp, context) /* Stack pointer */
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# define PC_sig(context) REG_sig(pc, context) /* Program counter */
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# define PSTATE_sig(context) REG_sig(pstate, context) /* Current State Register */
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# define FP_sig(context) REGn_sig(29, context) /* Frame pointer */
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# define LR_sig(context) REGn_sig(30, context) /* Link Register */
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/* Exceptions */
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# define FAULT_sig(context) REG_sig(fault_address, context)
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#endif /* linux */
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static const size_t teb_size = 0x2000; /* we reserve two pages for the TEB */
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static size_t signal_stack_size;
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typedef void (WINAPI *raise_func)( EXCEPTION_RECORD *rec, CONTEXT *context );
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typedef int (*wine_signal_handler)(unsigned int sig);
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static wine_signal_handler handlers[256];
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/***********************************************************************
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* dispatch_signal
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*/
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static inline int dispatch_signal(unsigned int sig)
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{
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if (handlers[sig] == NULL) return 0;
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return handlers[sig](sig);
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}
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/*******************************************************************
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* is_valid_frame
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*/
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static inline BOOL is_valid_frame( void *frame )
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{
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if ((ULONG_PTR)frame & 3) return FALSE;
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return (frame >= NtCurrentTeb()->Tib.StackLimit &&
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(void **)frame < (void **)NtCurrentTeb()->Tib.StackBase - 1);
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}
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/***********************************************************************
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* save_context
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*
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* Set the register values from a sigcontext.
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*/
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static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
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{
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#define C(n) context->X##n = REGn_sig(n,sigcontext)
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/* Save normal registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9);
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C(10); C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19);
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C(20); C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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#undef C
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context->ContextFlags = CONTEXT_FULL;
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context->Sp = SP_sig(sigcontext); /* Stack pointer */
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context->Pc = PC_sig(sigcontext); /* Program Counter */
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context->PState = PSTATE_sig(sigcontext); /* Current State Register */
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}
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/***********************************************************************
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* restore_context
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*
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* Build a sigcontext from the register values.
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*/
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static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
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{
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#define C(n) REGn_sig(n,sigcontext) = context->X##n
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/* Restore normal registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9);
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C(10); C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19);
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C(20); C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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#undef C
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SP_sig(sigcontext) = context->Sp; /* Stack pointer */
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PC_sig(sigcontext) = context->Pc; /* Program Counter */
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PSTATE_sig(sigcontext) = context->PState; /* Current State Register */
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}
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/***********************************************************************
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* save_fpu
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*
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* Set the FPU context from a sigcontext.
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*/
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static inline void save_fpu( CONTEXT *context, const ucontext_t *sigcontext )
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{
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FIXME( "Not implemented on ARM64\n" );
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}
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/***********************************************************************
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* restore_fpu
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*
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* Restore the FPU context to a sigcontext.
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*/
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static inline void restore_fpu( CONTEXT *context, const ucontext_t *sigcontext )
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{
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FIXME( "Not implemented on ARM64\n" );
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}
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/***********************************************************************
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* RtlCaptureContext (NTDLL.@)
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*/
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void WINAPI RtlCaptureContext( CONTEXT *context )
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{
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FIXME( "Not implemented on ARM64\n" );
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memset( context, 0, sizeof(*context) );
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}
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/***********************************************************************
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* set_cpu_context
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*
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* Set the new CPU context.
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*/
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void set_cpu_context( const CONTEXT *context )
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{
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FIXME( "Not implemented on ARM64\n" );
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}
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/***********************************************************************
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* copy_context
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*
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* Copy a register context according to the flags.
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*/
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void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
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{
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flags &= ~CONTEXT_ARM64; /* get rid of CPU id */
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if (flags & CONTEXT_CONTROL)
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{
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to->Sp = from->Sp;
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to->Pc = from->Pc;
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to->PState = from->PState;
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}
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if (flags & CONTEXT_INTEGER)
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{
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#define C(n) to->X##n = from->X##n
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/* Restore normal registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9);
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C(10); C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19);
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C(20); C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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#undef C
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}
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}
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/***********************************************************************
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* context_to_server
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*
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* Convert a register context to the server format.
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*/
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NTSTATUS context_to_server( context_t *to, const CONTEXT *from )
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{
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DWORD flags = from->ContextFlags & ~CONTEXT_ARM64; /* get rid of CPU id */
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memset( to, 0, sizeof(*to) );
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to->cpu = CPU_ARM64;
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if (flags & CONTEXT_CONTROL)
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{
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to->flags |= SERVER_CTX_CONTROL;
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to->ctl.arm64_regs.sp = from->Sp;
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to->ctl.arm64_regs.pc = from->Pc;
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to->ctl.arm64_regs.pstate = from->PState;
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}
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if (flags & CONTEXT_INTEGER)
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{
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to->flags |= SERVER_CTX_INTEGER;
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#define C(n) to->integer.arm64_regs.x[n] = from->X##n
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/* Restore normal registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9);
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C(10); C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19);
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C(20); C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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#undef C
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}
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* context_from_server
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*
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* Convert a register context from the server format.
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*/
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NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
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{
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if (from->cpu != CPU_ARM64) return STATUS_INVALID_PARAMETER;
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to->ContextFlags = CONTEXT_ARM64;
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if (from->flags & SERVER_CTX_CONTROL)
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{
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to->ContextFlags |= CONTEXT_CONTROL;
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to->Sp = from->ctl.arm64_regs.sp;
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to->Pc = from->ctl.arm64_regs.pc;
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to->PState = from->ctl.arm64_regs.pstate;
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}
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if (from->flags & SERVER_CTX_INTEGER)
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{
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to->ContextFlags |= CONTEXT_INTEGER;
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#define C(n) to->X##n = from->integer.arm64_regs.x[n]
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/* Restore normal registers */
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C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9);
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C(10); C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19);
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C(20); C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
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#undef C
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}
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* setup_exception_record
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*
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* Setup the exception record and context on the thread stack.
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*/
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static EXCEPTION_RECORD *setup_exception( SIGCONTEXT *sigcontext, raise_func func )
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{
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struct stack_layout
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{
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CONTEXT context;
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EXCEPTION_RECORD rec;
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} *stack;
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DWORD exception_code = 0;
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stack = (struct stack_layout *)(SP_sig(sigcontext) & ~3);
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stack--; /* push the stack_layout structure */
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stack->rec.ExceptionRecord = NULL;
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stack->rec.ExceptionCode = exception_code;
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stack->rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
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stack->rec.ExceptionAddress = (LPVOID)PC_sig(sigcontext);
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stack->rec.NumberParameters = 0;
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save_context( &stack->context, sigcontext );
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/* now modify the sigcontext to return to the raise function */
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SP_sig(sigcontext) = (ULONG_PTR)stack;
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PC_sig(sigcontext) = (ULONG_PTR)func;
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REGn_sig(0, sigcontext) = (ULONG_PTR)&stack->rec; /* first arg for raise_func */
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REGn_sig(1, sigcontext) = (ULONG_PTR)&stack->context; /* second arg for raise_func */
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return &stack->rec;
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}
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/**********************************************************************
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* raise_segv_exception
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*/
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static void WINAPI raise_segv_exception( EXCEPTION_RECORD *rec, CONTEXT *context )
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{
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NTSTATUS status;
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switch(rec->ExceptionCode)
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{
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case EXCEPTION_ACCESS_VIOLATION:
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if (rec->NumberParameters == 2)
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{
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if (!(rec->ExceptionCode = virtual_handle_fault( (void *)rec->ExceptionInformation[1],
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rec->ExceptionInformation[0] )))
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goto done;
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}
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break;
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}
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status = NtRaiseException( rec, context, TRUE );
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if (status) raise_status( status, rec );
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done:
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set_cpu_context( context );
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}
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/**********************************************************************
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* call_stack_handlers
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*
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* Call the stack handlers chain.
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*/
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static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
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{
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EXCEPTION_REGISTRATION_RECORD *frame, *dispatch, *nested_frame;
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DWORD res;
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frame = NtCurrentTeb()->Tib.ExceptionList;
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nested_frame = NULL;
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while (frame != (EXCEPTION_REGISTRATION_RECORD*)~0UL)
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{
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/* Check frame address */
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if (!is_valid_frame( frame ))
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{
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rec->ExceptionFlags |= EH_STACK_INVALID;
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break;
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}
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/* Call handler */
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TRACE( "calling handler at %p code=%x flags=%x\n",
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frame->Handler, rec->ExceptionCode, rec->ExceptionFlags );
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res = frame->Handler( rec, frame, context, &dispatch );
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TRACE( "handler at %p returned %x\n", frame->Handler, res );
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if (frame == nested_frame)
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{
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/* no longer nested */
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nested_frame = NULL;
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rec->ExceptionFlags &= ~EH_NESTED_CALL;
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}
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switch(res)
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{
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case ExceptionContinueExecution:
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if (!(rec->ExceptionFlags & EH_NONCONTINUABLE)) return STATUS_SUCCESS;
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return STATUS_NONCONTINUABLE_EXCEPTION;
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case ExceptionContinueSearch:
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break;
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case ExceptionNestedException:
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if (nested_frame < dispatch) nested_frame = dispatch;
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rec->ExceptionFlags |= EH_NESTED_CALL;
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break;
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default:
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return STATUS_INVALID_DISPOSITION;
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}
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frame = frame->Prev;
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}
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return STATUS_UNHANDLED_EXCEPTION;
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}
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/*******************************************************************
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* raise_exception
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*
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* Implementation of NtRaiseException.
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*/
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static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
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{
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NTSTATUS status;
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if (first_chance)
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{
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DWORD c;
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for (c = 0; c < rec->NumberParameters; c++)
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TRACE( " info[%d]=%016lx\n", c, rec->ExceptionInformation[c] );
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if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
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{
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if (rec->ExceptionInformation[1] >> 16)
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MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
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rec->ExceptionAddress,
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(char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
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else
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MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
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rec->ExceptionAddress,
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(char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
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}
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else
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{
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/* FIXME: dump context */
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}
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status = send_debug_event( rec, TRUE, context );
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if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
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return STATUS_SUCCESS;
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if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
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return STATUS_SUCCESS;
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if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
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return status;
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}
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/* last chance exception */
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status = send_debug_event( rec, FALSE, context );
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if (status != DBG_CONTINUE)
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{
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if (rec->ExceptionFlags & EH_STACK_INVALID)
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ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
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else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
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ERR("Process attempted to continue execution after noncontinuable exception.\n");
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else
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ERR("Unhandled exception code %x flags %x addr %p\n",
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rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
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NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
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}
|
||||
return STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* segv_handler
|
||||
*
|
||||
* Handler for SIGSEGV and related errors.
|
||||
*/
|
||||
static void segv_handler( int signal, siginfo_t *info, void *ucontext )
|
||||
{
|
||||
EXCEPTION_RECORD *rec;
|
||||
SIGCONTEXT *context = ucontext;
|
||||
|
||||
/* check for page fault inside the thread stack */
|
||||
if (signal == SIGSEGV &&
|
||||
(char *)info->si_addr >= (char *)NtCurrentTeb()->DeallocationStack &&
|
||||
(char *)info->si_addr < (char *)NtCurrentTeb()->Tib.StackBase &&
|
||||
virtual_handle_stack_fault( info->si_addr ))
|
||||
{
|
||||
/* check if this was the last guard page */
|
||||
if ((char *)info->si_addr < (char *)NtCurrentTeb()->DeallocationStack + 2*4096)
|
||||
{
|
||||
rec = setup_exception( context, raise_segv_exception );
|
||||
rec->ExceptionCode = EXCEPTION_STACK_OVERFLOW;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
rec = setup_exception( context, raise_segv_exception );
|
||||
if (rec->ExceptionCode == EXCEPTION_STACK_OVERFLOW) return;
|
||||
|
||||
switch(signal)
|
||||
{
|
||||
case SIGILL: /* Invalid opcode exception */
|
||||
rec->ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
||||
break;
|
||||
case SIGSEGV: /* Segmentation fault */
|
||||
rec->ExceptionCode = EXCEPTION_ACCESS_VIOLATION;
|
||||
rec->NumberParameters = 2;
|
||||
/* FIXME: Currently the kernel provides no way to determine if it's read or write */
|
||||
rec->ExceptionInformation[0] = 0;
|
||||
rec->ExceptionInformation[1] = (ULONG_PTR)info->si_addr;
|
||||
break;
|
||||
case SIGBUS: /* Alignment check exception */
|
||||
rec->ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
|
||||
break;
|
||||
default:
|
||||
ERR("Got unexpected signal %i\n", signal);
|
||||
rec->ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* trap_handler
|
||||
*
|
||||
* Handler for SIGTRAP.
|
||||
*/
|
||||
static void trap_handler( int signal, siginfo_t *info, void *ucontext )
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
NTSTATUS status;
|
||||
|
||||
switch ( info->si_code )
|
||||
{
|
||||
case TRAP_TRACE:
|
||||
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
|
||||
break;
|
||||
case TRAP_BRKPT:
|
||||
default:
|
||||
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
|
||||
break;
|
||||
}
|
||||
|
||||
save_context( &context, ucontext );
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Pc;
|
||||
rec.NumberParameters = 0;
|
||||
status = raise_exception( &rec, &context, TRUE );
|
||||
if (status) raise_status( status, &rec );
|
||||
restore_context( &context, ucontext );
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* fpe_handler
|
||||
*
|
||||
* Handler for SIGFPE.
|
||||
*/
|
||||
static void fpe_handler( int signal, siginfo_t *siginfo, void *sigcontext )
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
NTSTATUS status;
|
||||
|
||||
save_fpu( &context, sigcontext );
|
||||
save_context( &context, sigcontext );
|
||||
|
||||
switch (siginfo->si_code & 0xffff )
|
||||
{
|
||||
#ifdef FPE_FLTSUB
|
||||
case FPE_FLTSUB:
|
||||
rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_INTDIV
|
||||
case FPE_INTDIV:
|
||||
rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_INTOVF
|
||||
case FPE_INTOVF:
|
||||
rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_FLTDIV
|
||||
case FPE_FLTDIV:
|
||||
rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_FLTOVF
|
||||
case FPE_FLTOVF:
|
||||
rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_FLTUND
|
||||
case FPE_FLTUND:
|
||||
rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_FLTRES
|
||||
case FPE_FLTRES:
|
||||
rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
|
||||
break;
|
||||
#endif
|
||||
#ifdef FPE_FLTINV
|
||||
case FPE_FLTINV:
|
||||
#endif
|
||||
default:
|
||||
rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
|
||||
break;
|
||||
}
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Pc;
|
||||
rec.NumberParameters = 0;
|
||||
status = raise_exception( &rec, &context, TRUE );
|
||||
if (status) raise_status( status, &rec );
|
||||
|
||||
restore_context( &context, sigcontext );
|
||||
restore_fpu( &context, sigcontext );
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* int_handler
|
||||
*
|
||||
* Handler for SIGINT.
|
||||
*/
|
||||
static void int_handler( int signal, siginfo_t *siginfo, void *sigcontext )
|
||||
{
|
||||
if (!dispatch_signal(SIGINT))
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
NTSTATUS status;
|
||||
|
||||
save_context( &context, sigcontext );
|
||||
rec.ExceptionCode = CONTROL_C_EXIT;
|
||||
rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Pc;
|
||||
rec.NumberParameters = 0;
|
||||
status = raise_exception( &rec, &context, TRUE );
|
||||
if (status) raise_status( status, &rec );
|
||||
restore_context( &context, sigcontext );
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* abrt_handler
|
||||
*
|
||||
* Handler for SIGABRT.
|
||||
*/
|
||||
static void abrt_handler( int signal, siginfo_t *siginfo, void *sigcontext )
|
||||
{
|
||||
EXCEPTION_RECORD rec;
|
||||
CONTEXT context;
|
||||
NTSTATUS status;
|
||||
|
||||
save_context( &context, sigcontext );
|
||||
rec.ExceptionCode = EXCEPTION_WINE_ASSERTION;
|
||||
rec.ExceptionFlags = EH_NONCONTINUABLE;
|
||||
rec.ExceptionRecord = NULL;
|
||||
rec.ExceptionAddress = (LPVOID)context.Pc;
|
||||
rec.NumberParameters = 0;
|
||||
status = raise_exception( &rec, &context, TRUE );
|
||||
if (status) raise_status( status, &rec );
|
||||
restore_context( &context, sigcontext );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* quit_handler
|
||||
*
|
||||
* Handler for SIGQUIT.
|
||||
*/
|
||||
static void quit_handler( int signal, siginfo_t *siginfo, void *sigcontext )
|
||||
{
|
||||
abort_thread(0);
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* usr1_handler
|
||||
*
|
||||
* Handler for SIGUSR1, used to signal a thread that it got suspended.
|
||||
*/
|
||||
static void usr1_handler( int signal, siginfo_t *siginfo, void *sigcontext )
|
||||
{
|
||||
CONTEXT context;
|
||||
|
||||
save_context( &context, sigcontext );
|
||||
wait_suspend( &context );
|
||||
restore_context( &context, sigcontext );
|
||||
}
|
||||
|
||||
|
||||
/***********************************************************************
|
||||
* __wine_set_signal_handler (NTDLL.@)
|
||||
*/
|
||||
int CDECL __wine_set_signal_handler(unsigned int sig, wine_signal_handler wsh)
|
||||
{
|
||||
if (sig > sizeof(handlers) / sizeof(handlers[0])) return -1;
|
||||
if (handlers[sig] != NULL) return -2;
|
||||
handlers[sig] = wsh;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* signal_alloc_thread
|
||||
*/
|
||||
NTSTATUS signal_alloc_thread( TEB **teb )
|
||||
{
|
||||
static size_t sigstack_zero_bits;
|
||||
SIZE_T size;
|
||||
NTSTATUS status;
|
||||
|
||||
if (!sigstack_zero_bits)
|
||||
{
|
||||
size_t min_size = teb_size + max( MINSIGSTKSZ, 8192 );
|
||||
/* find the first power of two not smaller than min_size */
|
||||
sigstack_zero_bits = 12;
|
||||
while ((1u << sigstack_zero_bits) < min_size) sigstack_zero_bits++;
|
||||
signal_stack_size = (1 << sigstack_zero_bits) - teb_size;
|
||||
assert( sizeof(TEB) <= teb_size );
|
||||
}
|
||||
|
||||
size = 1 << sigstack_zero_bits;
|
||||
*teb = NULL;
|
||||
if (!(status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)teb, sigstack_zero_bits,
|
||||
&size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
|
||||
{
|
||||
(*teb)->Tib.Self = &(*teb)->Tib;
|
||||
(*teb)->Tib.ExceptionList = (void *)~0UL;
|
||||
}
|
||||
return status;
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* signal_free_thread
|
||||
*/
|
||||
void signal_free_thread( TEB *teb )
|
||||
{
|
||||
SIZE_T size;
|
||||
|
||||
if (teb->DeallocationStack)
|
||||
{
|
||||
size = 0;
|
||||
NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
|
||||
}
|
||||
size = 0;
|
||||
NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* signal_init_thread
|
||||
*/
|
||||
void signal_init_thread( TEB *teb )
|
||||
{
|
||||
static int init_done;
|
||||
|
||||
if (!init_done)
|
||||
{
|
||||
pthread_key_create( &teb_key, NULL );
|
||||
init_done = 1;
|
||||
}
|
||||
pthread_setspecific( teb_key, teb );
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* signal_init_process
|
||||
*/
|
||||
void signal_init_process(void)
|
||||
{
|
||||
struct sigaction sig_act;
|
||||
|
||||
sig_act.sa_mask = server_block_set;
|
||||
sig_act.sa_flags = SA_RESTART | SA_SIGINFO;
|
||||
|
||||
sig_act.sa_sigaction = int_handler;
|
||||
if (sigaction( SIGINT, &sig_act, NULL ) == -1) goto error;
|
||||
sig_act.sa_sigaction = fpe_handler;
|
||||
if (sigaction( SIGFPE, &sig_act, NULL ) == -1) goto error;
|
||||
sig_act.sa_sigaction = abrt_handler;
|
||||
if (sigaction( SIGABRT, &sig_act, NULL ) == -1) goto error;
|
||||
sig_act.sa_sigaction = quit_handler;
|
||||
if (sigaction( SIGQUIT, &sig_act, NULL ) == -1) goto error;
|
||||
sig_act.sa_sigaction = usr1_handler;
|
||||
if (sigaction( SIGUSR1, &sig_act, NULL ) == -1) goto error;
|
||||
|
||||
sig_act.sa_sigaction = segv_handler;
|
||||
if (sigaction( SIGSEGV, &sig_act, NULL ) == -1) goto error;
|
||||
if (sigaction( SIGILL, &sig_act, NULL ) == -1) goto error;
|
||||
#ifdef SIGBUS
|
||||
if (sigaction( SIGBUS, &sig_act, NULL ) == -1) goto error;
|
||||
#endif
|
||||
|
||||
#ifdef SIGTRAP
|
||||
sig_act.sa_sigaction = trap_handler;
|
||||
if (sigaction( SIGTRAP, &sig_act, NULL ) == -1) goto error;
|
||||
#endif
|
||||
return;
|
||||
|
||||
error:
|
||||
perror("sigaction");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************
|
||||
* __wine_enter_vm86 (NTDLL.@)
|
||||
*/
|
||||
void __wine_enter_vm86( CONTEXT *context )
|
||||
{
|
||||
MESSAGE("vm86 mode not supported on this platform\n");
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* RtlUnwind (NTDLL.@)
|
||||
*/
|
||||
void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
|
||||
{
|
||||
FIXME( "Not implemented on ARM64\n" );
|
||||
}
|
||||
|
||||
/*******************************************************************
|
||||
* NtRaiseException (NTDLL.@)
|
||||
*/
|
||||
NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
|
||||
{
|
||||
NTSTATUS status = raise_exception( rec, context, first_chance );
|
||||
if (status == STATUS_SUCCESS) NtSetContextThread( GetCurrentThread(), context );
|
||||
return status;
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* RtlRaiseException (NTDLL.@)
|
||||
*/
|
||||
void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
|
||||
{
|
||||
CONTEXT context;
|
||||
NTSTATUS status;
|
||||
|
||||
RtlCaptureContext( &context );
|
||||
rec->ExceptionAddress = (LPVOID)context.Pc;
|
||||
status = raise_exception( rec, &context, TRUE );
|
||||
if (status) raise_status( status, rec );
|
||||
}
|
||||
|
||||
/*************************************************************************
|
||||
* RtlCaptureStackBackTrace (NTDLL.@)
|
||||
*/
|
||||
USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer, ULONG *hash )
|
||||
{
|
||||
FIXME( "(%d, %d, %p, %p) stub!\n", skip, count, buffer, hash );
|
||||
return 0;
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* call_thread_entry_point
|
||||
*/
|
||||
void call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg )
|
||||
{
|
||||
__TRY
|
||||
{
|
||||
exit_thread( entry( arg ));
|
||||
}
|
||||
__EXCEPT(unhandled_exception_filter)
|
||||
{
|
||||
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
|
||||
}
|
||||
__ENDTRY
|
||||
abort(); /* should not be reached */
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* RtlExitUserThread (NTDLL.@)
|
||||
*/
|
||||
void WINAPI RtlExitUserThread( ULONG status )
|
||||
{
|
||||
exit_thread( status );
|
||||
}
|
||||
|
||||
/***********************************************************************
|
||||
* abort_thread
|
||||
*/
|
||||
void abort_thread( int status )
|
||||
{
|
||||
terminate_thread( status );
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* DbgBreakPoint (NTDLL.@)
|
||||
*/
|
||||
void WINAPI DbgBreakPoint(void)
|
||||
{
|
||||
kill(getpid(), SIGTRAP);
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* DbgUserBreakPoint (NTDLL.@)
|
||||
*/
|
||||
void WINAPI DbgUserBreakPoint(void)
|
||||
{
|
||||
kill(getpid(), SIGTRAP);
|
||||
}
|
||||
|
||||
/**********************************************************************
|
||||
* NtCurrentTeb (NTDLL.@)
|
||||
*/
|
||||
TEB * WINAPI NtCurrentTeb(void)
|
||||
{
|
||||
return pthread_getspecific( teb_key );
|
||||
}
|
||||
|
||||
#endif /* __aarch64__ */
|
||||
Loading…
Reference in New Issue