forked from Mirrors/wine-wine
167 lines
4.1 KiB
C
167 lines
4.1 KiB
C
/*
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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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#if 0
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#pragma makedep unix
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#endif
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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 <pthread.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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#ifdef HAVE_SYS_UCONTEXT_H
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# include <sys/ucontext.h>
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#endif
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#ifdef HAVE_LIBUNWIND
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# define UNW_LOCAL_ONLY
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# include <libunwind.h>
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#endif
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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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 "winnt.h"
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#include "winternl.h"
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#include "wine/exception.h"
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#include "wine/asm.h"
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#include "unix_private.h"
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#include "wine/debug.h"
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static pthread_key_t teb_key;
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static const size_t teb_size = 0x2000; /* we reserve two pages for the TEB */
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/**********************************************************************
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* get_thread_ldt_entry
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*/
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NTSTATUS CDECL get_thread_ldt_entry( HANDLE handle, void *data, ULONG len, ULONG *ret_len )
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{
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return STATUS_NOT_IMPLEMENTED;
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}
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/******************************************************************************
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* NtSetLdtEntries (NTDLL.@)
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* ZwSetLdtEntries (NTDLL.@)
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*/
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NTSTATUS WINAPI NtSetLdtEntries( ULONG sel1, LDT_ENTRY entry1, ULONG sel2, LDT_ENTRY entry2 )
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{
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return STATUS_NOT_IMPLEMENTED;
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}
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/**********************************************************************
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* signal_init_threading
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*/
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void signal_init_threading(void)
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{
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pthread_key_create( &teb_key, NULL );
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}
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/**********************************************************************
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* signal_alloc_thread
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*/
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NTSTATUS signal_alloc_thread( TEB *teb )
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{
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return STATUS_SUCCESS;
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}
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/**********************************************************************
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* signal_free_thread
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*/
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void signal_free_thread( TEB *teb )
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{
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}
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/**********************************************************************
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* signal_init_thread
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*/
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void signal_init_thread( TEB *teb )
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{
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stack_t ss;
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ss.ss_sp = (char *)teb + teb_size;
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ss.ss_size = signal_stack_size;
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ss.ss_flags = 0;
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if (sigaltstack( &ss, NULL ) == -1) perror( "sigaltstack" );
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/* Win64/ARM applications expect the TEB pointer to be in the x18 platform register. */
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__asm__ __volatile__( "mov x18, %0" : : "r" (teb) );
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pthread_setspecific( teb_key, teb );
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}
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extern void DECLSPEC_NORETURN call_thread_exit_func( int status, void (*func)(int), TEB *teb );
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__ASM_GLOBAL_FUNC( call_thread_exit_func,
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"ldr x3, [x2, #0x300]\n\t" /* arm64_thread_data()->exit_frame */
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"str xzr, [x2, #0x300]\n\t"
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"cbz x3, 1f\n\t"
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"mov sp, x3\n"
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"1:\tblr x1" )
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/***********************************************************************
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* signal_exit_thread
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*/
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void signal_exit_thread( int status, void (*func)(int) )
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{
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call_thread_exit_func( status, func, NtCurrentTeb() );
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}
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/**********************************************************************
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* NtCurrentTeb (NTDLL.@)
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*/
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TEB * WINAPI NtCurrentTeb(void)
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{
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return pthread_getspecific( teb_key );
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}
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#endif /* __aarch64__ */
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