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ntdll: Always set the thread context through NtSetContextThread(). 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-06-25 10:33:31 +02:00
parent 10dbd1edd1
commit c031662fd0
3 changed files with 2 additions and 153 deletions
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21
dlls/ntdll/signal_arm.c
View File

@ -85,27 +85,6 @@ __ASM_STDCALL_FUNC( RtlCaptureContext, 4,
)
/***********************************************************************
* set_cpu_context
*
* Set the new CPU context.
*/
void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context );
__ASM_GLOBAL_FUNC( set_cpu_context,
".arm\n\t"
"ldr r2, [r0, #0x44]\n\t" /* context->Cpsr */
"tst r2, #0x20\n\t" /* thumb? */
"ldr r1, [r0, #0x40]\n\t" /* context->Pc */
"orrne r1, r1, #1\n\t" /* Adjust PC according to thumb */
"biceq r1, r1, #1\n\t" /* Adjust PC according to arm */
"msr CPSR_f, r2\n\t"
"ldr lr, [r0, #0x3c]\n\t" /* context->Lr */
"ldr sp, [r0, #0x38]\n\t" /* context->Sp */
"push {r1}\n\t"
"ldmib r0, {r0-r12}\n\t" /* context->R0..R12 */
"pop {pc}" )
/**********************************************************************
* call_stack_handlers
*

28
dlls/ntdll/signal_arm64.c
View File

@ -68,20 +68,6 @@ struct MSVCRT_JUMP_BUFFER
double D[8];
};
struct arm64_thread_data
{
void *exit_frame; /* exit frame pointer */
CONTEXT *context; /* context to set with SIGUSR2 */
};
C_ASSERT( sizeof(struct arm64_thread_data) <= sizeof(((TEB *)0)->SystemReserved2) );
C_ASSERT( offsetof( TEB, SystemReserved2 ) + offsetof( struct arm64_thread_data, exit_frame ) == 0x300 );
static inline struct arm64_thread_data *arm64_thread_data(void)
{
return (struct arm64_thread_data *)NtCurrentTeb()->SystemReserved2;
}
/*******************************************************************
* is_valid_frame
@ -122,18 +108,6 @@ __ASM_STDCALL_FUNC( RtlCaptureContext, 8,
"str w1, [x0, #0x4]\n\t" /* context->Cpsr */
"ret" )
/***********************************************************************
* set_cpu_context
*
* Set the new CPU context.
*/
static void set_cpu_context( const CONTEXT *context )
{
InterlockedExchangePointer( (void **)&arm64_thread_data()->context, (void *)context );
raise( SIGUSR2 );
}
/**********************************************************************
* virtual_unwind
@ -1039,7 +1013,7 @@ void CDECL RtlRestoreContext( CONTEXT *context, EXCEPTION_RECORD *rec )
}
TRACE( "returning to %lx stack %lx\n", context->Pc, context->Sp );
set_cpu_context( context );
NtSetContextThread( GetCurrentThread(), context );
}
/*******************************************************************

106
dlls/ntdll/signal_x86_64.c
View File

@ -222,25 +222,6 @@ struct MSVCRT_JUMP_BUFFER
#error You must define the signal context functions for your platform
#endif
struct amd64_thread_data
{
DWORD_PTR dr0; /* debug registers */
DWORD_PTR dr1;
DWORD_PTR dr2;
DWORD_PTR dr3;
DWORD_PTR dr6;
DWORD_PTR dr7;
void *exit_frame; /* exit frame pointer */
};
C_ASSERT( sizeof(struct amd64_thread_data) <= sizeof(((TEB *)0)->SystemReserved2) );
C_ASSERT( offsetof( TEB, SystemReserved2 ) + offsetof( struct amd64_thread_data, exit_frame ) == 0x330 );
static inline struct amd64_thread_data *amd64_thread_data(void)
{
return (struct amd64_thread_data *)NtCurrentTeb()->SystemReserved2;
}
/***********************************************************************
* Definitions for Win32 unwind tables
@ -525,91 +506,6 @@ __ASM_GLOBAL_FUNC( RtlCaptureContext,
"movdqa %xmm15,0x290(%rcx)\n\t" /* context->Xmm15 */
"ret" );
/***********************************************************************
* set_full_cpu_context
*
* Set the new CPU context.
*/
extern void set_full_cpu_context( const CONTEXT *context );
__ASM_GLOBAL_FUNC( set_full_cpu_context,
"subq $40,%rsp\n\t"
__ASM_SEH(".seh_stackalloc 0x40\n\t")
__ASM_SEH(".seh_endprologue\n\t")
__ASM_CFI(".cfi_adjust_cfa_offset 40\n\t")
"ldmxcsr 0x34(%rdi)\n\t" /* context->MxCsr */
"movw 0x38(%rdi),%ax\n\t" /* context->SegCs */
"movq %rax,8(%rsp)\n\t"
"movw 0x42(%rdi),%ax\n\t" /* context->SegSs */
"movq %rax,32(%rsp)\n\t"
"movq 0x44(%rdi),%rax\n\t" /* context->Eflags */
"movq %rax,16(%rsp)\n\t"
"movq 0x80(%rdi),%rcx\n\t" /* context->Rcx */
"movq 0x88(%rdi),%rdx\n\t" /* context->Rdx */
"movq 0x90(%rdi),%rbx\n\t" /* context->Rbx */
"movq 0x98(%rdi),%rax\n\t" /* context->Rsp */
"movq %rax,24(%rsp)\n\t"
"movq 0xa0(%rdi),%rbp\n\t" /* context->Rbp */
"movq 0xa8(%rdi),%rsi\n\t" /* context->Rsi */
"movq 0xb8(%rdi),%r8\n\t" /* context->R8 */
"movq 0xc0(%rdi),%r9\n\t" /* context->R9 */
"movq 0xc8(%rdi),%r10\n\t" /* context->R10 */
"movq 0xd0(%rdi),%r11\n\t" /* context->R11 */
"movq 0xd8(%rdi),%r12\n\t" /* context->R12 */
"movq 0xe0(%rdi),%r13\n\t" /* context->R13 */
"movq 0xe8(%rdi),%r14\n\t" /* context->R14 */
"movq 0xf0(%rdi),%r15\n\t" /* context->R15 */
"movq 0xf8(%rdi),%rax\n\t" /* context->Rip */
"movq %rax,(%rsp)\n\t"
"fxrstor 0x100(%rdi)\n\t" /* context->FtlSave */
"movdqa 0x1a0(%rdi),%xmm0\n\t" /* context->Xmm0 */
"movdqa 0x1b0(%rdi),%xmm1\n\t" /* context->Xmm1 */
"movdqa 0x1c0(%rdi),%xmm2\n\t" /* context->Xmm2 */
"movdqa 0x1d0(%rdi),%xmm3\n\t" /* context->Xmm3 */
"movdqa 0x1e0(%rdi),%xmm4\n\t" /* context->Xmm4 */
"movdqa 0x1f0(%rdi),%xmm5\n\t" /* context->Xmm5 */
"movdqa 0x200(%rdi),%xmm6\n\t" /* context->Xmm6 */
"movdqa 0x210(%rdi),%xmm7\n\t" /* context->Xmm7 */
"movdqa 0x220(%rdi),%xmm8\n\t" /* context->Xmm8 */
"movdqa 0x230(%rdi),%xmm9\n\t" /* context->Xmm9 */
"movdqa 0x240(%rdi),%xmm10\n\t" /* context->Xmm10 */
"movdqa 0x250(%rdi),%xmm11\n\t" /* context->Xmm11 */
"movdqa 0x260(%rdi),%xmm12\n\t" /* context->Xmm12 */
"movdqa 0x270(%rdi),%xmm13\n\t" /* context->Xmm13 */
"movdqa 0x280(%rdi),%xmm14\n\t" /* context->Xmm14 */
"movdqa 0x290(%rdi),%xmm15\n\t" /* context->Xmm15 */
"movq 0x78(%rdi),%rax\n\t" /* context->Rax */
"movq 0xb0(%rdi),%rdi\n\t" /* context->Rdi */
"iretq" );
/***********************************************************************
* set_cpu_context
*
* Set the new CPU context. Used by NtSetContextThread.
*/
void DECLSPEC_HIDDEN set_cpu_context( const CONTEXT *context )
{
DWORD flags = context->ContextFlags & ~CONTEXT_AMD64;
if (flags & CONTEXT_DEBUG_REGISTERS)
{
amd64_thread_data()->dr0 = context->Dr0;
amd64_thread_data()->dr1 = context->Dr1;
amd64_thread_data()->dr2 = context->Dr2;
amd64_thread_data()->dr3 = context->Dr3;
amd64_thread_data()->dr6 = context->Dr6;
amd64_thread_data()->dr7 = context->Dr7;
}
if (flags & CONTEXT_FULL)
{
if (!(flags & CONTEXT_CONTROL))
FIXME( "setting partial context (%x) not supported\n", flags );
else
set_full_cpu_context( context );
}
}
/******************************************************************************
* RtlWow64GetThreadContext (NTDLL.@)
*/
@ -1320,7 +1216,7 @@ void CDECL RtlRestoreContext( CONTEXT *context, EXCEPTION_RECORD *rec )
}
TRACE( "returning to %lx stack %lx\n", context->Rip, context->Rsp );
set_cpu_context( context );
NtSetContextThread( GetCurrentThread(), context );
}