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Sweden-Number/dlls/ntdll/unix/signal_arm64.c

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/*
* ARM64 signal handling routines
*
* Copyright 2010-2013 André Hentschel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if 0
#pragma makedep unix
#endif
#ifdef __aarch64__
#include "config.h"
#include <assert.h>
#include <pthread.h>
#include <signal.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYSCALL_H
# include <syscall.h>
#else
# ifdef HAVE_SYS_SYSCALL_H
# include <sys/syscall.h>
# endif
#endif
#ifdef HAVE_SYS_SIGNAL_H
# include <sys/signal.h>
#endif
#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
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winnt.h"
#include "winternl.h"
#include "wine/asm.h"
#include "unix_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(seh);
/***********************************************************************
* signal context platform-specific definitions
*/
#ifdef linux
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext.reg_name)
# define REGn_sig(reg_num, context) ((context)->uc_mcontext.regs[reg_num])
/* Special Registers access */
# define SP_sig(context) REG_sig(sp, context) /* Stack pointer */
# define PC_sig(context) REG_sig(pc, context) /* Program counter */
# define PSTATE_sig(context) REG_sig(pstate, context) /* Current State Register */
# define FP_sig(context) REGn_sig(29, context) /* Frame pointer */
# define LR_sig(context) REGn_sig(30, context) /* Link Register */
static struct _aarch64_ctx *get_extended_sigcontext( const ucontext_t *sigcontext, unsigned int magic )
{
struct _aarch64_ctx *ctx = (struct _aarch64_ctx *)sigcontext->uc_mcontext.__reserved;
while ((char *)ctx < (char *)(&sigcontext->uc_mcontext + 1) && ctx->magic && ctx->size)
{
if (ctx->magic == magic) return ctx;
ctx = (struct _aarch64_ctx *)((char *)ctx + ctx->size);
}
return NULL;
}
static struct fpsimd_context *get_fpsimd_context( const ucontext_t *sigcontext )
{
return (struct fpsimd_context *)get_extended_sigcontext( sigcontext, FPSIMD_MAGIC );
}
static DWORD64 get_fault_esr( ucontext_t *sigcontext )
{
struct esr_context *esr = (struct esr_context *)get_extended_sigcontext( sigcontext, ESR_MAGIC );
if (esr) return esr->esr;
return 0;
}
#elif defined(__APPLE__)
/* All Registers access - only for local access */
# define REG_sig(reg_name, context) ((context)->uc_mcontext->__ss.__ ## reg_name)
# define REGn_sig(reg_num, context) ((context)->uc_mcontext->__ss.__x[reg_num])
/* Special Registers access */
# define SP_sig(context) REG_sig(sp, context) /* Stack pointer */
# define PC_sig(context) REG_sig(pc, context) /* Program counter */
# define PSTATE_sig(context) REG_sig(cpsr, context) /* Current State Register */
# define FP_sig(context) REG_sig(fp, context) /* Frame pointer */
# define LR_sig(context) REG_sig(lr, context) /* Link Register */
static DWORD64 get_fault_esr( ucontext_t *sigcontext )
{
return sigcontext->uc_mcontext->__es.__esr;
}
#endif /* linux */
static pthread_key_t teb_key;
struct syscall_frame
{
ULONG64 x[29]; /* 000 */
ULONG64 fp; /* 0e8 */
ULONG64 lr; /* 0f0 */
ULONG64 sp; /* 0f8 */
ULONG64 pc; /* 100 */
ULONG cpsr; /* 108 */
ULONG restore_flags; /* 10c */
struct syscall_frame *prev_frame; /* 110 */
SYSTEM_SERVICE_TABLE *syscall_table; /* 118 */
ULONG64 align; /* 120 */
ULONG fpcr; /* 128 */
ULONG fpsr; /* 12c */
NEON128 v[32]; /* 130 */
};
C_ASSERT( sizeof( struct syscall_frame ) == 0x330 );
struct arm64_thread_data
{
void *exit_frame; /* 02f0 exit frame pointer */
struct syscall_frame *syscall_frame; /* 02f8 frame pointer on syscall entry */
};
C_ASSERT( sizeof(struct arm64_thread_data) <= sizeof(((struct ntdll_thread_data *)0)->cpu_data) );
C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct arm64_thread_data, exit_frame ) == 0x2f0 );
C_ASSERT( offsetof( TEB, GdiTebBatch ) + offsetof( struct arm64_thread_data, syscall_frame ) == 0x2f8 );
static inline struct arm64_thread_data *arm64_thread_data(void)
{
return (struct arm64_thread_data *)ntdll_get_thread_data()->cpu_data;
}
static BOOL is_inside_syscall( ucontext_t *sigcontext )
{
return ((char *)SP_sig(sigcontext) >= (char *)ntdll_get_thread_data()->kernel_stack &&
(char *)SP_sig(sigcontext) <= (char *)arm64_thread_data()->syscall_frame);
}
extern void raise_func_trampoline( EXCEPTION_RECORD *rec, CONTEXT *context, void *dispatcher );
/***********************************************************************
* unwind_builtin_dll
*
* Equivalent of RtlVirtualUnwind for builtin modules.
*/
NTSTATUS CDECL unwind_builtin_dll( ULONG type, DISPATCHER_CONTEXT *dispatch, CONTEXT *context )
{
#ifdef HAVE_LIBUNWIND
ULONG_PTR ip = context->Pc;
unw_context_t unw_context;
unw_cursor_t cursor;
unw_proc_info_t info;
int rc;
#ifdef __APPLE__
rc = unw_getcontext( &unw_context );
if (rc == UNW_ESUCCESS)
rc = unw_init_local( &cursor, &unw_context );
if (rc == UNW_ESUCCESS)
{
int i;
for (i = 0; i <= 28; i++)
unw_set_reg( &cursor, UNW_ARM64_X0 + i, context->u.X[i] );
unw_set_reg( &cursor, UNW_ARM64_FP, context->u.s.Fp );
unw_set_reg( &cursor, UNW_ARM64_LR, context->u.s.Lr );
unw_set_reg( &cursor, UNW_ARM64_SP, context->Sp );
unw_set_reg( &cursor, UNW_REG_IP, context->Pc );
}
#else
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 );
#endif
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)
{
TRACE( "no info found for %lx ip %lx-%lx, assuming leaf function\n",
ip, info.start_ip, info.end_ip );
dispatch->LanguageHandler = NULL;
dispatch->EstablisherFrame = context->Sp;
context->Pc = context->u.s.Lr;
context->ContextFlags |= CONTEXT_UNWOUND_TO_CALL;
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 %d\n", rc, UNW_ENOINFO );
return STATUS_INVALID_DISPOSITION;
}
dispatch->LanguageHandler = (void *)info.handler;
dispatch->HandlerData = (void *)info.lsda;
dispatch->EstablisherFrame = context->Sp;
#ifdef __APPLE__
{
int i;
for (i = 0; i <= 28; i++)
unw_get_reg( &cursor, UNW_ARM64_X0 + i, (unw_word_t *)&context->u.X[i] );
}
unw_get_reg( &cursor, UNW_ARM64_FP, (unw_word_t *)&context->u.s.Fp );
unw_get_reg( &cursor, UNW_ARM64_X30, (unw_word_t *)&context->u.s.Lr );
unw_get_reg( &cursor, UNW_ARM64_SP, (unw_word_t *)&context->Sp );
#else
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 );
#endif
unw_get_reg( &cursor, UNW_REG_IP, (unw_word_t *)&context->Pc );
context->ContextFlags |= CONTEXT_UNWOUND_TO_CALL;
if (info.start_ip == (unw_word_t)raise_func_trampoline) {
/* raise_func_trampoline has a full CONTEXT stored on the stack;
* restore the original Lr value from there. The function we unwind
* to might be a leaf function that hasn't backed up its own original
* Lr value on the stack.
* We could also just restore the full context here without doing
* unw_step at all. */
const CONTEXT *next_ctx = (const CONTEXT *) dispatch->EstablisherFrame;
context->u.s.Lr = next_ctx->u.s.Lr;
}
TRACE( "next function pc=%016lx%s\n", context->Pc, rc ? "" : " (last frame)" );
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 );
return STATUS_SUCCESS;
#else
ERR("libunwind not available, unable to unwind\n");
return STATUS_INVALID_DISPOSITION;
#endif
}
/***********************************************************************
* save_fpu
*
* Set the FPU context from a sigcontext.
*/
static void save_fpu( CONTEXT *context, const ucontext_t *sigcontext )
{
#ifdef linux
struct fpsimd_context *fp = get_fpsimd_context( sigcontext );
if (!fp) return;
context->ContextFlags |= CONTEXT_FLOATING_POINT;
context->Fpcr = fp->fpcr;
context->Fpsr = fp->fpsr;
memcpy( context->V, fp->vregs, sizeof(context->V) );
#elif defined(__APPLE__)
context->ContextFlags |= CONTEXT_FLOATING_POINT;
context->Fpcr = sigcontext->uc_mcontext->__ns.__fpcr;
context->Fpsr = sigcontext->uc_mcontext->__ns.__fpsr;
memcpy( context->V, sigcontext->uc_mcontext->__ns.__v, sizeof(context->V) );
#endif
}
/***********************************************************************
* restore_fpu
*
* Restore the FPU context to a sigcontext.
*/
static void restore_fpu( const CONTEXT *context, ucontext_t *sigcontext )
{
#ifdef linux
struct fpsimd_context *fp = get_fpsimd_context( sigcontext );
if (!fp) return;
fp->fpcr = context->Fpcr;
fp->fpsr = context->Fpsr;
memcpy( fp->vregs, context->V, sizeof(fp->vregs) );
#elif defined(__APPLE__)
sigcontext->uc_mcontext->__ns.__fpcr = context->Fpcr;
sigcontext->uc_mcontext->__ns.__fpsr = context->Fpsr;
memcpy( sigcontext->uc_mcontext->__ns.__v, context->V, sizeof(context->V) );
#endif
}
/***********************************************************************
* save_context
*
* Set the register values from a sigcontext.
*/
static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
{
DWORD i;
context->ContextFlags = CONTEXT_FULL;
context->u.s.Fp = FP_sig(sigcontext); /* Frame pointer */
context->u.s.Lr = LR_sig(sigcontext); /* Link register */
context->Sp = SP_sig(sigcontext); /* Stack pointer */
context->Pc = PC_sig(sigcontext); /* Program Counter */
context->Cpsr = PSTATE_sig(sigcontext); /* Current State Register */
for (i = 0; i <= 28; i++) context->u.X[i] = REGn_sig( i, sigcontext );
save_fpu( context, sigcontext );
}
/***********************************************************************
* restore_context
*
* Build a sigcontext from the register values.
*/
static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
{
DWORD i;
FP_sig(sigcontext) = context->u.s.Fp; /* Frame pointer */
LR_sig(sigcontext) = context->u.s.Lr; /* Link register */
SP_sig(sigcontext) = context->Sp; /* Stack pointer */
PC_sig(sigcontext) = context->Pc; /* Program Counter */
PSTATE_sig(sigcontext) = context->Cpsr; /* Current State Register */
for (i = 0; i <= 28; i++) REGn_sig( i, sigcontext ) = context->u.X[i];
restore_fpu( context, sigcontext );
}
/***********************************************************************
* signal_set_full_context
*/
NTSTATUS signal_set_full_context( CONTEXT *context )
{
NTSTATUS status = NtSetContextThread( GetCurrentThread(), context );
if (!status && (context->ContextFlags & CONTEXT_INTEGER) == CONTEXT_INTEGER) raise( SIGUSR2 );
return status;
}
/***********************************************************************
* get_native_context
*/
void *get_native_context( CONTEXT *context )
{
return context;
}
/***********************************************************************
* get_wow_context
*/
void *get_wow_context( CONTEXT *context )
{
return NULL;
}
/***********************************************************************
* NtSetContextThread (NTDLL.@)
* ZwSetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
NTSTATUS ret = STATUS_SUCCESS;
BOOL self = (handle == GetCurrentThread());
DWORD flags = context->ContextFlags & ~CONTEXT_ARM64;
if (self && (flags & CONTEXT_DEBUG_REGISTERS)) self = FALSE;
if (!self)
{
ret = set_thread_context( handle, context, &self, IMAGE_FILE_MACHINE_ARM64 );
if (ret || !self) return ret;
}
if (flags & CONTEXT_INTEGER)
{
memcpy( frame->x, context->u.X, sizeof(context->u.X[0]) * 18 );
/* skip x18 */
memcpy( frame->x + 19, context->u.X + 19, sizeof(context->u.X[0]) * 10 );
}
if (flags & CONTEXT_CONTROL)
{
frame->fp = context->u.s.Fp;
frame->lr = context->u.s.Lr;
frame->sp = context->Sp;
frame->pc = context->Pc;
frame->cpsr = context->Cpsr;
}
if (flags & CONTEXT_FLOATING_POINT)
{
frame->fpcr = context->Fpcr;
frame->fpsr = context->Fpsr;
memcpy( frame->v, context->V, sizeof(frame->v) );
}
if (flags & CONTEXT_ARM64_X18)
{
frame->x[18] = context->u.X[18];
}
if (flags & CONTEXT_DEBUG_REGISTERS) FIXME( "debug registers not supported\n" );
frame->restore_flags |= flags & ~CONTEXT_INTEGER;
return STATUS_SUCCESS;
}
/***********************************************************************
* NtGetContextThread (NTDLL.@)
* ZwGetContextThread (NTDLL.@)
*/
NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
DWORD needed_flags = context->ContextFlags & ~CONTEXT_ARM64;
BOOL self = (handle == GetCurrentThread());
if (!self)
{
NTSTATUS ret = get_thread_context( handle, context, &self, IMAGE_FILE_MACHINE_ARM64 );
if (ret || !self) return ret;
}
if (needed_flags & CONTEXT_INTEGER)
{
memcpy( context->u.X, frame->x, sizeof(context->u.X[0]) * 29 );
context->ContextFlags |= CONTEXT_INTEGER;
}
if (needed_flags & CONTEXT_CONTROL)
{
context->u.s.Fp = frame->fp;
context->u.s.Lr = frame->lr;
context->Sp = frame->sp;
context->Pc = frame->pc;
context->Cpsr = frame->cpsr;
context->ContextFlags |= CONTEXT_CONTROL;
}
if (needed_flags & CONTEXT_FLOATING_POINT)
{
context->Fpcr = frame->fpcr;
context->Fpsr = frame->fpsr;
memcpy( context->V, frame->v, sizeof(context->V) );
context->ContextFlags |= CONTEXT_FLOATING_POINT;
}
if (needed_flags & CONTEXT_DEBUG_REGISTERS) FIXME( "debug registers not supported\n" );
return STATUS_SUCCESS;
}
/***********************************************************************
* set_thread_wow64_context
*/
NTSTATUS set_thread_wow64_context( HANDLE handle, const void *ctx, ULONG size )
{
BOOL self;
USHORT machine;
switch (size)
{
case sizeof(I386_CONTEXT): machine = IMAGE_FILE_MACHINE_I386; break;
case sizeof(ARM_CONTEXT): machine = IMAGE_FILE_MACHINE_ARMNT; break;
default: return STATUS_INFO_LENGTH_MISMATCH;
}
return set_thread_context( handle, ctx, &self, machine );
}
/***********************************************************************
* get_thread_wow64_context
*/
NTSTATUS get_thread_wow64_context( HANDLE handle, void *ctx, ULONG size )
{
BOOL self;
USHORT machine;
switch (size)
{
case sizeof(I386_CONTEXT): machine = IMAGE_FILE_MACHINE_I386; break;
case sizeof(ARM_CONTEXT): machine = IMAGE_FILE_MACHINE_ARMNT; break;
default: return STATUS_INFO_LENGTH_MISMATCH;
}
return get_thread_context( handle, ctx, &self, machine );
}
/* Note, unwind_builtin_dll above has hardcoded assumptions on how this
* function stores things on the stack; if modified, modify that one in
* sync as well. */
__ASM_GLOBAL_FUNC( raise_func_trampoline,
"stp x29, x30, [sp, #-0x30]!\n\t"
__ASM_CFI(".cfi_def_cfa_offset 48\n\t")
__ASM_CFI(".cfi_offset 29, -48\n\t")
__ASM_CFI(".cfi_offset 30, -40\n\t")
"stp x0, x1, [sp, #0x10]\n\t"
"str x2, [sp, #0x20]\n\t"
"mov x29, sp\n\t"
__ASM_CFI(".cfi_def_cfa_register 29\n\t")
__ASM_CFI(".cfi_remember_state\n\t")
/* Memcpy the context onto the stack */
"sub sp, sp, #0x390\n\t"
"mov x0, sp\n\t"
"mov x2, #0x390\n\t"
"bl " __ASM_NAME("memcpy") "\n\t"
__ASM_CFI(".cfi_def_cfa 31, 0\n\t")
__ASM_CFI(".cfi_escape 0x0f,0x04,0x8f,0x80,0x02,0x06\n\t") /* CFA, DW_OP_breg31 + 0x100, DW_OP_deref */
__ASM_CFI(".cfi_escape 0x10,0x13,0x03,0x8f,0xa0,0x01\n\t") /* x19, DW_OP_breg31 + 0xA0 */
__ASM_CFI(".cfi_escape 0x10,0x14,0x03,0x8f,0xa8,0x01\n\t") /* x20 */
__ASM_CFI(".cfi_escape 0x10,0x15,0x03,0x8f,0xb0,0x01\n\t") /* x21 */
__ASM_CFI(".cfi_escape 0x10,0x16,0x03,0x8f,0xb8,0x01\n\t") /* x22 */
__ASM_CFI(".cfi_escape 0x10,0x17,0x03,0x8f,0xc0,0x01\n\t") /* x23 */
__ASM_CFI(".cfi_escape 0x10,0x18,0x03,0x8f,0xc8,0x01\n\t") /* x24 */
__ASM_CFI(".cfi_escape 0x10,0x19,0x03,0x8f,0xd0,0x01\n\t") /* x25 */
__ASM_CFI(".cfi_escape 0x10,0x1a,0x03,0x8f,0xd8,0x01\n\t") /* x26 */
__ASM_CFI(".cfi_escape 0x10,0x1b,0x03,0x8f,0xe0,0x01\n\t") /* x27 */
__ASM_CFI(".cfi_escape 0x10,0x1c,0x03,0x8f,0xe8,0x01\n\t") /* x28 */
__ASM_CFI(".cfi_escape 0x10,0x1d,0x03,0x8f,0xf0,0x01\n\t") /* x29 */
__ASM_CFI(".cfi_escape 0x10,0x1e,0x03,0x8f,0x88,0x02\n\t") /* x30 = pc */
__ASM_CFI(".cfi_escape 0x10,0x48,0x03,0x8f,0x90,0x03\n\t") /* d8 */
__ASM_CFI(".cfi_escape 0x10,0x49,0x03,0x8f,0x98,0x03\n\t") /* d9 */
__ASM_CFI(".cfi_escape 0x10,0x4a,0x03,0x8f,0xa0,0x03\n\t") /* d10 */
__ASM_CFI(".cfi_escape 0x10,0x4b,0x03,0x8f,0xa8,0x03\n\t") /* d11 */
__ASM_CFI(".cfi_escape 0x10,0x4c,0x03,0x8f,0xb0,0x03\n\t") /* d12 */
__ASM_CFI(".cfi_escape 0x10,0x4d,0x03,0x8f,0xb8,0x03\n\t") /* d13 */
__ASM_CFI(".cfi_escape 0x10,0x4e,0x03,0x8f,0xc0,0x03\n\t") /* d14 */
__ASM_CFI(".cfi_escape 0x10,0x4f,0x03,0x8f,0xc8,0x03\n\t") /* d15 */
"ldp x0, x1, [x29, #0x10]\n\t"
"ldr x2, [x29, #0x20]\n\t"
"blr x2\n\t"
__ASM_CFI(".cfi_restore_state\n\t")
"brk #1")
/***********************************************************************
* setup_exception
*
* Modify the signal context to call the exception raise function.
*/
static void setup_exception( ucontext_t *sigcontext, EXCEPTION_RECORD *rec )
{
struct
{
CONTEXT context;
EXCEPTION_RECORD rec;
void *redzone[3];
} *stack;
void *stack_ptr = (void *)(SP_sig(sigcontext) & ~15);
CONTEXT context;
NTSTATUS status;
rec->ExceptionAddress = (void *)PC_sig(sigcontext);
save_context( &context, sigcontext );
status = send_debug_event( rec, &context, TRUE );
if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
{
restore_context( &context, sigcontext );
return;
}
stack = virtual_setup_exception( stack_ptr, (sizeof(*stack) + 15) & ~15, rec );
stack->rec = *rec;
stack->context = context;
SP_sig(sigcontext) = (ULONG_PTR)stack;
LR_sig(sigcontext) = PC_sig(sigcontext);
PC_sig(sigcontext) = (ULONG_PTR)raise_func_trampoline;
REGn_sig(0, sigcontext) = (ULONG_PTR)&stack->rec; /* first arg for KiUserExceptionDispatcher */
REGn_sig(1, sigcontext) = (ULONG_PTR)&stack->context; /* second arg for KiUserExceptionDispatcher */
REGn_sig(2, sigcontext) = (ULONG_PTR)pKiUserExceptionDispatcher; /* dispatcher arg for raise_func_trampoline */
REGn_sig(18, sigcontext) = (ULONG_PTR)NtCurrentTeb();
}
/***********************************************************************
* call_user_apc_dispatcher
*/
NTSTATUS call_user_apc_dispatcher( CONTEXT *context, ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3,
PNTAPCFUNC func, NTSTATUS status )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
ULONG64 sp = context ? context->Sp : frame->sp;
struct apc_stack_layout { CONTEXT context; } *stack;
sp &= ~15;
stack = (struct apc_stack_layout *)sp - 1;
if (context)
{
memmove( &stack->context, context, sizeof(stack->context) );
NtSetContextThread( GetCurrentThread(), &stack->context );
}
else
{
stack->context.ContextFlags = CONTEXT_FULL;
NtGetContextThread( GetCurrentThread(), &stack->context );
stack->context.u.s.X0 = status;
}
frame->sp = (ULONG64)stack;
frame->pc = (ULONG64)pKiUserApcDispatcher;
frame->x[0] = (ULONG64)&stack->context;
frame->x[1] = arg1;
frame->x[2] = arg2;
frame->x[3] = arg3;
frame->x[4] = (ULONG64)func;
frame->restore_flags |= CONTEXT_CONTROL | CONTEXT_INTEGER;
return status;
}
/***********************************************************************
* call_raise_user_exception_dispatcher
*/
void call_raise_user_exception_dispatcher(void)
{
arm64_thread_data()->syscall_frame->pc = (UINT64)pKiRaiseUserExceptionDispatcher;
}
/***********************************************************************
* call_user_exception_dispatcher
*/
NTSTATUS call_user_exception_dispatcher( EXCEPTION_RECORD *rec, CONTEXT *context )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
ULONG64 fp = frame->fp;
ULONG64 lr = frame->lr;
ULONG64 sp = frame->sp;
NTSTATUS status = NtSetContextThread( GetCurrentThread(), context );
if (status) return status;
frame->x[0] = (ULONG64)rec;
frame->x[1] = (ULONG64)context;
frame->pc = (ULONG64)pKiUserExceptionDispatcher;
frame->fp = fp;
frame->lr = lr;
frame->sp = sp;
frame->restore_flags |= CONTEXT_INTEGER | CONTEXT_CONTROL;
return status;
}
struct user_callback_frame
{
struct syscall_frame frame;
void **ret_ptr;
ULONG *ret_len;
__wine_jmp_buf jmpbuf;
NTSTATUS status;
};
/***********************************************************************
* KeUserModeCallback
*/
NTSTATUS WINAPI KeUserModeCallback( ULONG id, const void *args, ULONG len, void **ret_ptr, ULONG *ret_len )
{
struct user_callback_frame callback_frame = { {{ 0 }}, ret_ptr, ret_len };
/* if we have no syscall frame, call the callback directly */
if ((char *)&callback_frame < (char *)ntdll_get_thread_data()->kernel_stack ||
(char *)&callback_frame > (char *)arm64_thread_data()->syscall_frame)
{
NTSTATUS (WINAPI *func)(const void *, ULONG) = ((void **)NtCurrentTeb()->Peb->KernelCallbackTable)[id];
return func( args, len );
}
if ((char *)ntdll_get_thread_data()->kernel_stack + min_kernel_stack > (char *)&callback_frame)
return STATUS_STACK_OVERFLOW;
if (!__wine_setjmpex( &callback_frame.jmpbuf, NULL ))
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
void *args_data = (void *)((frame->sp - len) & ~15);
memcpy( args_data, args, len );
callback_frame.frame.x[0] = id;
callback_frame.frame.x[1] = (ULONG_PTR)args;
callback_frame.frame.x[2] = len;
callback_frame.frame.x[18] = frame->x[18];
callback_frame.frame.sp = (ULONG_PTR)args_data;
callback_frame.frame.pc = (ULONG_PTR)pKiUserCallbackDispatcher;
callback_frame.frame.restore_flags = CONTEXT_INTEGER;
callback_frame.frame.syscall_table = frame->syscall_table;
callback_frame.frame.prev_frame = frame;
arm64_thread_data()->syscall_frame = &callback_frame.frame;
__wine_syscall_dispatcher_return( &callback_frame.frame, 0 );
}
return callback_frame.status;
}
/***********************************************************************
* NtCallbackReturn (NTDLL.@)
*/
NTSTATUS WINAPI NtCallbackReturn( void *ret_ptr, ULONG ret_len, NTSTATUS status )
{
struct user_callback_frame *frame = (struct user_callback_frame *)arm64_thread_data()->syscall_frame;
if (!frame->frame.prev_frame) return STATUS_NO_CALLBACK_ACTIVE;
*frame->ret_ptr = ret_ptr;
*frame->ret_len = ret_len;
frame->status = status;
arm64_thread_data()->syscall_frame = frame->frame.prev_frame;
__wine_longjmp( &frame->jmpbuf, 1 );
}
/***********************************************************************
* handle_syscall_fault
*
* Handle a page fault happening during a system call.
*/
static BOOL handle_syscall_fault( ucontext_t *context, EXCEPTION_RECORD *rec )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
DWORD i;
if (!is_inside_syscall( context ) && !ntdll_get_thread_data()->jmp_buf) return FALSE;
TRACE( "code=%x flags=%x addr=%p pc=%p tid=%04x\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
(void *)PC_sig(context), GetCurrentThreadId() );
for (i = 0; i < rec->NumberParameters; i++)
TRACE( " info[%d]=%016lx\n", i, rec->ExceptionInformation[i] );
TRACE(" x0=%016lx x1=%016lx x2=%016lx x3=%016lx\n",
(DWORD64)REGn_sig(0, context), (DWORD64)REGn_sig(1, context),
(DWORD64)REGn_sig(2, context), (DWORD64)REGn_sig(3, context) );
TRACE(" x4=%016lx x5=%016lx x6=%016lx x7=%016lx\n",
(DWORD64)REGn_sig(4, context), (DWORD64)REGn_sig(5, context),
(DWORD64)REGn_sig(6, context), (DWORD64)REGn_sig(7, context) );
TRACE(" x8=%016lx x9=%016lx x10=%016lx x11=%016lx\n",
(DWORD64)REGn_sig(8, context), (DWORD64)REGn_sig(9, context),
(DWORD64)REGn_sig(10, context), (DWORD64)REGn_sig(11, context) );
TRACE(" x12=%016lx x13=%016lx x14=%016lx x15=%016lx\n",
(DWORD64)REGn_sig(12, context), (DWORD64)REGn_sig(13, context),
(DWORD64)REGn_sig(14, context), (DWORD64)REGn_sig(15, context) );
TRACE(" x16=%016lx x17=%016lx x18=%016lx x19=%016lx\n",
(DWORD64)REGn_sig(16, context), (DWORD64)REGn_sig(17, context),
(DWORD64)REGn_sig(18, context), (DWORD64)REGn_sig(19, context) );
TRACE(" x20=%016lx x21=%016lx x22=%016lx x23=%016lx\n",
(DWORD64)REGn_sig(20, context), (DWORD64)REGn_sig(21, context),
(DWORD64)REGn_sig(22, context), (DWORD64)REGn_sig(23, context) );
TRACE(" x24=%016lx x25=%016lx x26=%016lx x27=%016lx\n",
(DWORD64)REGn_sig(24, context), (DWORD64)REGn_sig(25, context),
(DWORD64)REGn_sig(26, context), (DWORD64)REGn_sig(27, context) );
TRACE(" x28=%016lx fp=%016lx lr=%016lx sp=%016lx\n",
(DWORD64)REGn_sig(28, context), (DWORD64)FP_sig(context),
(DWORD64)LR_sig(context), (DWORD64)SP_sig(context) );
if (ntdll_get_thread_data()->jmp_buf)
{
TRACE( "returning to handler\n" );
REGn_sig(0, context) = (ULONG_PTR)ntdll_get_thread_data()->jmp_buf;
REGn_sig(1, context) = 1;
PC_sig(context) = (ULONG_PTR)__wine_longjmp;
ntdll_get_thread_data()->jmp_buf = NULL;
}
else
{
TRACE( "returning to user mode ip=%p ret=%08x\n", (void *)frame->pc, rec->ExceptionCode );
REGn_sig(0, context) = (ULONG_PTR)frame;
REGn_sig(1, context) = rec->ExceptionCode;
PC_sig(context) = (ULONG_PTR)__wine_syscall_dispatcher_return;
}
return TRUE;
}
/**********************************************************************
* segv_handler
*
* Handler for SIGSEGV.
*/
static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { 0 };
ucontext_t *context = sigcontext;
rec.NumberParameters = 2;
rec.ExceptionInformation[0] = (get_fault_esr( context ) & 0x40) != 0;
rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
rec.ExceptionCode = virtual_handle_fault( siginfo->si_addr, rec.ExceptionInformation[0],
(void *)SP_sig(context) );
if (!rec.ExceptionCode) return;
if (handle_syscall_fault( context, &rec )) return;
setup_exception( context, &rec );
}
/**********************************************************************
* ill_handler
*
* Handler for SIGILL.
*/
static void ill_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { EXCEPTION_ILLEGAL_INSTRUCTION };
setup_exception( sigcontext, &rec );
}
/**********************************************************************
* bus_handler
*
* Handler for SIGBUS.
*/
static void bus_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { EXCEPTION_DATATYPE_MISALIGNMENT };
setup_exception( sigcontext, &rec );
}
/**********************************************************************
* trap_handler
*
* Handler for SIGTRAP.
*/
static void trap_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { 0 };
switch (siginfo->si_code)
{
case TRAP_TRACE:
rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
break;
case TRAP_BRKPT:
default:
rec.ExceptionCode = EXCEPTION_BREAKPOINT;
rec.NumberParameters = 1;
break;
}
setup_exception( sigcontext, &rec );
}
/**********************************************************************
* fpe_handler
*
* Handler for SIGFPE.
*/
static void fpe_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { 0 };
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;
}
setup_exception( sigcontext, &rec );
}
/**********************************************************************
* int_handler
*
* Handler for SIGINT.
*/
static void int_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
HANDLE handle;
if (!p__wine_ctrl_routine) return;
if (!NtCreateThreadEx( &handle, THREAD_ALL_ACCESS, NULL, NtCurrentProcess(),
p__wine_ctrl_routine, 0 /* CTRL_C_EVENT */, 0, 0, 0, 0, NULL ))
NtClose( handle );
}
/**********************************************************************
* abrt_handler
*
* Handler for SIGABRT.
*/
static void abrt_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
EXCEPTION_RECORD rec = { EXCEPTION_WINE_ASSERTION, EH_NONCONTINUABLE };
setup_exception( sigcontext, &rec );
}
/**********************************************************************
* 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;
if (is_inside_syscall( sigcontext ))
{
context.ContextFlags = CONTEXT_FULL;
NtGetContextThread( GetCurrentThread(), &context );
wait_suspend( &context );
NtSetContextThread( GetCurrentThread(), &context );
}
else
{
save_context( &context, sigcontext );
wait_suspend( &context );
restore_context( &context, sigcontext );
}
}
/**********************************************************************
* usr2_handler
*
* Handler for SIGUSR2, used to set a thread context.
*/
static void usr2_handler( int signal, siginfo_t *siginfo, void *sigcontext )
{
struct syscall_frame *frame = arm64_thread_data()->syscall_frame;
ucontext_t *context = sigcontext;
DWORD i;
if (!is_inside_syscall( sigcontext )) return;
FP_sig(context) = frame->fp;
LR_sig(context) = frame->lr;
SP_sig(context) = frame->sp;
PC_sig(context) = frame->pc;
PSTATE_sig(context) = frame->cpsr;
for (i = 0; i <= 28; i++) REGn_sig( i, context ) = frame->x[i];
#ifdef linux
{
struct fpsimd_context *fp = get_fpsimd_context( sigcontext );
if (fp)
{
fp->fpcr = frame->fpcr;
fp->fpsr = frame->fpsr;
memcpy( fp->vregs, frame->v, sizeof(fp->vregs) );
}
}
#elif defined(__APPLE__)
context->uc_mcontext->__ns.__fpcr = frame->fpcr;
context->uc_mcontext->__ns.__fpsr = frame->fpsr;
memcpy( context->uc_mcontext->__ns.__v, frame->v, sizeof(frame->v) );
#endif
}
/**********************************************************************
* get_thread_ldt_entry
*/
NTSTATUS get_thread_ldt_entry( HANDLE handle, void *data, ULONG len, ULONG *ret_len )
{
return STATUS_NOT_IMPLEMENTED;
}
/******************************************************************************
* NtSetLdtEntries (NTDLL.@)
* ZwSetLdtEntries (NTDLL.@)
*/
NTSTATUS WINAPI NtSetLdtEntries( ULONG sel1, LDT_ENTRY entry1, ULONG sel2, LDT_ENTRY entry2 )
{
return STATUS_NOT_IMPLEMENTED;
}
/**********************************************************************
* signal_init_threading
*/
void signal_init_threading(void)
{
pthread_key_create( &teb_key, NULL );
}
/**********************************************************************
* signal_alloc_thread
*/
NTSTATUS signal_alloc_thread( TEB *teb )
{
return STATUS_SUCCESS;
}
/**********************************************************************
* signal_free_thread
*/
void signal_free_thread( TEB *teb )
{
}
/**********************************************************************
* signal_init_thread
*/
void signal_init_thread( TEB *teb )
{
/* Win64/ARM applications expect the TEB pointer to be in the x18 platform register. */
__asm__ __volatile__( "mov x18, %0" : : "r" (teb) );
pthread_setspecific( teb_key, teb );
}
/**********************************************************************
* signal_init_process
*/
void signal_init_process(void)
{
struct sigaction sig_act;
void *kernel_stack = (char *)ntdll_get_thread_data()->kernel_stack + kernel_stack_size;
arm64_thread_data()->syscall_frame = (struct syscall_frame *)kernel_stack - 1;
sig_act.sa_mask = server_block_set;
sig_act.sa_flags = SA_SIGINFO | SA_RESTART | SA_ONSTACK;
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 = usr2_handler;
if (sigaction( SIGUSR2, &sig_act, NULL ) == -1) goto error;
sig_act.sa_sigaction = trap_handler;
if (sigaction( SIGTRAP, &sig_act, NULL ) == -1) goto error;
sig_act.sa_sigaction = segv_handler;
if (sigaction( SIGSEGV, &sig_act, NULL ) == -1) goto error;
sig_act.sa_sigaction = ill_handler;
if (sigaction( SIGILL, &sig_act, NULL ) == -1) goto error;
sig_act.sa_sigaction = bus_handler;
if (sigaction( SIGBUS, &sig_act, NULL ) == -1) goto error;
return;
error:
perror("sigaction");
exit(1);
}
/***********************************************************************
* call_init_thunk
*/
void DECLSPEC_HIDDEN call_init_thunk( LPTHREAD_START_ROUTINE entry, void *arg, BOOL suspend, TEB *teb )
{
struct arm64_thread_data *thread_data = (struct arm64_thread_data *)&teb->GdiTebBatch;
struct syscall_frame *frame = thread_data->syscall_frame;
CONTEXT *ctx, context = { CONTEXT_ALL };
context.u.s.X0 = (DWORD64)entry;
context.u.s.X1 = (DWORD64)arg;
context.u.s.X18 = (DWORD64)teb;
context.Sp = (DWORD64)teb->Tib.StackBase;
context.Pc = (DWORD64)pRtlUserThreadStart;
if (suspend) wait_suspend( &context );
ctx = (CONTEXT *)((ULONG_PTR)context.Sp & ~15) - 1;
*ctx = context;
ctx->ContextFlags = CONTEXT_FULL;
NtSetContextThread( GetCurrentThread(), ctx );
frame->sp = (ULONG64)ctx;
frame->pc = (ULONG64)pLdrInitializeThunk;
frame->x[0] = (ULONG64)ctx;
frame->x[18] = (ULONG64)teb;
frame->prev_frame = NULL;
frame->restore_flags |= CONTEXT_INTEGER;
frame->syscall_table = KeServiceDescriptorTable;
pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL );
__wine_syscall_dispatcher_return( frame, 0 );
}
/***********************************************************************
* signal_start_thread
*/
__ASM_GLOBAL_FUNC( signal_start_thread,
"stp x29, x30, [sp,#-16]!\n\t"
/* store exit frame */
"mov x29, sp\n\t"
"str x29, [x3, #0x2f0]\n\t" /* arm64_thread_data()->exit_frame */
/* set syscall frame */
"ldr x8, [x3, #0x2f8]\n\t" /* arm64_thread_data()->syscall_frame */
"cbnz x8, 1f\n\t"
"sub x8, sp, #0x330\n\t" /* sizeof(struct syscall_frame) */
"str x8, [x3, #0x2f8]\n\t" /* arm64_thread_data()->syscall_frame */
"1:\tmov sp, x8\n\t"
"bl " __ASM_NAME("call_init_thunk") )
/***********************************************************************
* signal_exit_thread
*/
__ASM_GLOBAL_FUNC( signal_exit_thread,
"stp x29, x30, [sp,#-16]!\n\t"
"ldr x3, [x2, #0x2f0]\n\t" /* arm64_thread_data()->exit_frame */
"str xzr, [x2, #0x2f0]\n\t"
"cbz x3, 1f\n\t"
"mov sp, x3\n"
"1:\tldp x29, x30, [sp], #16\n\t"
"br x1" )
/***********************************************************************
* __wine_syscall_dispatcher
*/
__ASM_GLOBAL_FUNC( __wine_syscall_dispatcher,
/* FIXME: use x18 directly instead */
"stp x0, x1, [sp, #-96]!\n\t"
"stp x2, x3, [sp, #16]\n\t"
"stp x4, x5, [sp, #32]\n\t"
"stp x6, x7, [sp, #48]\n\t"
"stp x8, x9, [sp, #64]\n\t"
"str x30, [sp, #80]\n\t"
"bl " __ASM_NAME("NtCurrentTeb") "\n\t"
"mov x18, x0\n\t"
"ldp x2, x3, [sp, #16]\n\t"
"ldp x4, x5, [sp, #32]\n\t"
"ldp x6, x7, [sp, #48]\n\t"
"ldp x8, x9, [sp, #64]\n\t"
"ldr x30, [sp, #80]\n\t"
"ldp x0, x1, [sp], #96\n\t"
"ldr x10, [x18, #0x2f8]\n\t" /* arm64_thread_data()->syscall_frame */
"stp x18, x19, [x10, #0x90]\n\t"
"stp x20, x21, [x10, #0xa0]\n\t"
"stp x22, x23, [x10, #0xb0]\n\t"
"stp x24, x25, [x10, #0xc0]\n\t"
"stp x26, x27, [x10, #0xd0]\n\t"
"stp x28, x29, [x10, #0xe0]\n\t"
"mov x19, sp\n\t"
"stp x9, x19, [x10, #0xf0]\n\t"
"mrs x9, NZCV\n\t"
"stp x30, x9, [x10, #0x100]\n\t"
"mrs x9, FPCR\n\t"
"str w9, [x10, #0x128]\n\t"
"mrs x9, FPSR\n\t"
"str w9, [x10, #0x12c]\n\t"
"stp q0, q1, [x10, #0x130]\n\t"
"stp q2, q3, [x10, #0x150]\n\t"
"stp q4, q5, [x10, #0x170]\n\t"
"stp q6, q7, [x10, #0x190]\n\t"
"stp q8, q9, [x10, #0x1b0]\n\t"
"stp q10, q11, [x10, #0x1d0]\n\t"
"stp q12, q13, [x10, #0x1f0]\n\t"
"stp q14, q15, [x10, #0x210]\n\t"
"stp q16, q17, [x10, #0x230]\n\t"
"stp q18, q19, [x10, #0x250]\n\t"
"stp q20, q21, [x10, #0x270]\n\t"
"stp q22, q23, [x10, #0x290]\n\t"
"stp q24, q25, [x10, #0x2b0]\n\t"
"stp q26, q27, [x10, #0x2d0]\n\t"
"stp q28, q29, [x10, #0x2f0]\n\t"
"stp q30, q31, [x10, #0x310]\n\t"
"mov sp, x10\n\t"
"and x20, x8, #0xfff\n\t" /* syscall number */
"ubfx x21, x8, #12, #2\n\t" /* syscall table number */
"ldr x16, [x10, #0x118]\n\t" /* frame->syscall_table */
"add x21, x16, x21, lsl #5\n\t"
"ldr x16, [x21, #16]\n\t" /* table->ServiceLimit */
"cmp x20, x16\n\t"
"bcs 4f\n\t"
"mov x22, sp\n\t"
"ldr x16, [x21, #24]\n\t" /* table->ArgumentTable */
"ldrb w9, [x16, x20]\n\t"
"subs x9, x9, #64\n\t"
"bls 2f\n\t"
"sub sp, sp, x9\n\t"
"tbz x9, #3, 1f\n\t"
"sub sp, sp, #8\n"
"1:\tsub x9, x9, #8\n\t"
"ldr x10, [x19, x9]\n\t"
"str x10, [sp, x9]\n\t"
"cbnz x9, 1b\n"
"2:\tldr x16, [x21]\n\t" /* table->ServiceTable */
"ldr x16, [x16, x20, lsl 3]\n\t"
"blr x16\n\t"
"mov sp, x22\n"
"3:\tldp x18, x19, [sp, #0x90]\n\t"
"ldp x20, x21, [sp, #0xa0]\n\t"
"ldp x22, x23, [sp, #0xb0]\n\t"
"ldp x24, x25, [sp, #0xc0]\n\t"
"ldp x26, x27, [sp, #0xd0]\n\t"
"ldp x28, x29, [sp, #0xe0]\n\t"
"ldr w16, [sp, #0x10c]\n\t" /* frame->restore_flags */
"tbz x16, #2, 1f\n\t" /* CONTEXT_FLOATING_POINT */
"ldp q0, q1, [sp, #0x130]\n\t"
"ldp q2, q3, [sp, #0x150]\n\t"
"ldp q4, q5, [sp, #0x170]\n\t"
"ldp q6, q7, [sp, #0x190]\n\t"
"ldp q8, q9, [sp, #0x1b0]\n\t"
"ldp q10, q11, [sp, #0x1d0]\n\t"
"ldp q12, q13, [sp, #0x1f0]\n\t"
"ldp q14, q15, [sp, #0x210]\n\t"
"ldp q16, q17, [sp, #0x230]\n\t"
"ldp q18, q19, [sp, #0x250]\n\t"
"ldp q20, q21, [sp, #0x270]\n\t"
"ldp q22, q23, [sp, #0x290]\n\t"
"ldp q24, q25, [sp, #0x2b0]\n\t"
"ldp q26, q27, [sp, #0x2d0]\n\t"
"ldp q28, q29, [sp, #0x2f0]\n\t"
"ldp q30, q31, [sp, #0x310]\n\t"
"ldr w9, [sp, #0x128]\n\t"
"msr FPCR, x9\n\t"
"ldr w9, [sp, #0x12c]\n\t"
"msr FPSR, x9\n"
"1:\ttbz x16, #1, 1f\n\t" /* CONTEXT_INTEGER */
"ldp x0, x1, [sp, #0x00]\n\t"
"ldp x2, x3, [sp, #0x10]\n\t"
"ldp x4, x5, [sp, #0x20]\n\t"
"ldp x6, x7, [sp, #0x30]\n\t"
"ldp x8, x9, [sp, #0x40]\n\t"
"ldp x10, x11, [sp, #0x50]\n\t"
"ldp x12, x13, [sp, #0x60]\n\t"
"ldp x14, x15, [sp, #0x70]\n"
"1:\tldp x16, x17, [sp, #0x100]\n\t"
"msr NZCV, x17\n\t"
"ldp x30, x17, [sp, #0xf0]\n\t"
"mov sp, x17\n\t"
"ret x16\n"
"4:\tmov x0, #0xc0000000\n\t" /* STATUS_INVALID_PARAMETER */
"movk x0, #0x000d\n\t"
"b 3b\n"
__ASM_NAME("__wine_syscall_dispatcher_return") ":\n\t"
"mov sp, x0\n\t"
"mov x0, x1\n\t"
"b 3b" )
/***********************************************************************
* __wine_setjmpex
*/
__ASM_GLOBAL_FUNC( __wine_setjmpex,
"str x1, [x0]\n\t" /* jmp_buf->Frame */
"stp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
"stp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
"stp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
"stp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
"stp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
"stp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
"mov x2, sp\n\t"
"str x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
"mrs x2, fpcr\n\t"
"str w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
"mrs x2, fpsr\n\t"
"str w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
"stp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
"stp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
"stp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
"stp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
"mov x0, #0\n\t"
"ret" )
/***********************************************************************
* __wine_longjmp
*/
__ASM_GLOBAL_FUNC( __wine_longjmp,
"ldp x19, x20, [x0, #0x10]\n\t" /* jmp_buf->X19, X20 */
"ldp x21, x22, [x0, #0x20]\n\t" /* jmp_buf->X21, X22 */
"ldp x23, x24, [x0, #0x30]\n\t" /* jmp_buf->X23, X24 */
"ldp x25, x26, [x0, #0x40]\n\t" /* jmp_buf->X25, X26 */
"ldp x27, x28, [x0, #0x50]\n\t" /* jmp_buf->X27, X28 */
"ldp x29, x30, [x0, #0x60]\n\t" /* jmp_buf->Fp, Lr */
"ldr x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */
"mov sp, x2\n\t"
"ldr w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */
"msr fpcr, x2\n\t"
"ldr w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */
"msr fpsr, x2\n\t"
"ldp d8, d9, [x0, #0x80]\n\t" /* jmp_buf->D[0-1] */
"ldp d10, d11, [x0, #0x90]\n\t" /* jmp_buf->D[2-3] */
"ldp d12, d13, [x0, #0xa0]\n\t" /* jmp_buf->D[4-5] */
"ldp d14, d15, [x0, #0xb0]\n\t" /* jmp_buf->D[6-7] */
"mov x0, x1\n\t" /* retval */
"ret" )
/**********************************************************************
* NtCurrentTeb (NTDLL.@)
*/
TEB * WINAPI NtCurrentTeb(void)
{
return pthread_getspecific( teb_key );
}
#endif /* __aarch64__ */
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