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Alexey Alyaev
wine
Commits
8e9551f3
Commit
8e9551f3
authored
2 years ago
by
Alexandre Julliard
Browse files
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ntdll: Reimplement KeUserModeCallback in assembly on x86_64.
parent
d40017ec
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dlls/ntdll/unix/signal_x86_64.c
+144
-50
144 additions, 50 deletions
dlls/ntdll/unix/signal_x86_64.c
with
144 additions
and
50 deletions
dlls/ntdll/unix/signal_x86_64.c
+
144
−
50
View file @
8e9551f3
...
...
@@ -1553,61 +1553,163 @@ NTSTATUS call_user_exception_dispatcher( EXCEPTION_RECORD *rec, CONTEXT *context
}
struct
user_callback_frame
{
struct
syscall_frame
frame
;
void
**
ret_ptr
;
ULONG
*
ret_len
;
__wine_jmp_buf
jmpbuf
;
NTSTATUS
status
;
void
*
teb_frame
;
};
/***********************************************************************
* call_user_mode_callback
*/
extern
NTSTATUS
CDECL
call_user_mode_callback
(
void
*
func
,
void
*
stack
,
void
**
ret_ptr
,
ULONG
*
ret_len
,
TEB
*
teb
);
__ASM_GLOBAL_FUNC
(
call_user_mode_callback
,
"subq $0xe8,%rsp
\n\t
"
__ASM_SEH
(
".seh_stackalloc 0xf0
\n\t
"
)
__ASM_SEH
(
".seh_endprologue
\n\t
"
)
__ASM_CFI
(
".cfi_adjust_cfa_offset 0xe8
\n\t
"
)
"movq %rbp,0xe0(%rsp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %rbp,0xe0
\n\t
"
)
"leaq 0xe0(%rsp),%rbp
\n\t
"
__ASM_CFI
(
".cfi_def_cfa_register %rbp
\n\t
"
)
"movq %rbx,-0x08(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x08
\n\t
"
)
"movq %rsi,-0x10(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x10
\n\t
"
)
"movq %rdi,-0x18(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x18
\n\t
"
)
"movq %r12,-0x20(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %r12,-0x20
\n\t
"
)
"movq %r13,-0x28(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %r13,-0x28
\n\t
"
)
"movq %r14,-0x30(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %r14,-0x30
\n\t
"
)
"movq %r15,-0x38(%rbp)
\n\t
"
__ASM_CFI
(
".cfi_rel_offset %r15,-0x38
\n\t
"
)
"stmxcsr -0x40(%rbp)
\n\t
"
"fnstcw -0x3c(%rbp)
\n\t
"
"movdqa %xmm6,-0x50(%rbp)
\n\t
"
"movdqa %xmm7,-0x60(%rbp)
\n\t
"
"movdqa %xmm8,-0x70(%rbp)
\n\t
"
"movdqa %xmm9,-0x80(%rbp)
\n\t
"
"movdqa %xmm10,-0x90(%rbp)
\n\t
"
"movdqa %xmm11,-0xa0(%rbp)
\n\t
"
"movdqa %xmm12,-0xb0(%rbp)
\n\t
"
"movdqa %xmm13,-0xc0(%rbp)
\n\t
"
"movdqa %xmm14,-0xd0(%rbp)
\n\t
"
"movdqa %xmm15,-0xe0(%rbp)
\n\t
"
"movq %r8,0x10(%rbp)
\n\t
"
/* ret_ptr */
"movq %r9,0x18(%rbp)
\n\t
"
/* ret_len */
"movq 0x30(%rbp),%r11
\n\t
"
/* teb */
"subq $0x410,%rsp
\n\t
"
/* sizeof(struct syscall_frame) + ebp + exception */
"andq $~63,%rsp
\n\t
"
"movq %rbp,0x400(%rsp)
\n\t
"
"movq 0x328(%r11),%r10
\n\t
"
/* amd64_thread_data()->syscall_frame */
"movq (%r11),%rax
\n\t
"
/* NtCurrentTeb()->Tib.ExceptionList */
"movq %rax,0x408(%rsp)
\n\t
"
"movq 0xa8(%r10),%rax
\n\t
"
/* prev_frame->syscall_table */
"movq %rax,0xa8(%rsp)
\n\t
"
/* frame->syscall_table */
"movl 0xb0(%r10),%r14d
\n\t
"
/* prev_frame->syscall_flags */
"movl %r14d,0xb0(%rsp)
\n\t
"
/* frame->syscall_flags */
"movq %r10,0xa0(%rsp)
\n\t
"
/* frame->prev_frame */
"movq %rsp,0x328(%r11)
\n\t
"
/* amd64_thread_data()->syscall_frame */
#ifdef __linux__
"testl $12,%r14d
\n\t
"
/* SYSCALL_HAVE_PTHREAD_TEB | SYSCALL_HAVE_WRFSGSBASE */
"jz 1f
\n\t
"
"movw 0x338(%r11),%fs
\n
"
/* amd64_thread_data()->fs */
"1:
\n\t
"
#endif
"movq %rcx,%r9
\n\t
"
/* func */
"movq %rdx,%rax
\n\t
"
/* stack */
"movq 0x8(%rax),%rcx
\n\t
"
/* id */
"movq 0x10(%rax),%rdx
\n\t
"
/* args */
"movq 0x18(%rax),%r8
\n\t
"
/* len */
"movq %rax,%rsp
\n\t
"
"jmpq *%r9"
)
/***********************************************************************
* user_mode_callback_return
*/
extern
void
CDECL
DECLSPEC_NORETURN
user_mode_callback_return
(
void
*
ret_ptr
,
ULONG
ret_len
,
NTSTATUS
status
,
TEB
*
teb
);
__ASM_GLOBAL_FUNC
(
user_mode_callback_return
,
"movq 0x328(%r9),%r10
\n\t
"
/* amd64_thread_data()->syscall_frame */
"movq 0xa0(%r10),%r11
\n\t
"
/* frame->prev_frame */
"movq %r11,0x328(%r9)
\n\t
"
/* amd64_thread_data()->syscall_frame = prev_frame */
"movq 0x400(%r10),%rbp
\n\t
"
/* call_user_mode_callback rbp */
__ASM_CFI
(
".cfi_def_cfa_register %rbp
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x08
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x10
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %rbx,-0x18
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %r12,-0x20
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %r13,-0x28
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %r14,-0x30
\n\t
"
)
__ASM_CFI
(
".cfi_rel_offset %r15,-0x38
\n\t
"
)
"movq 0x408(%r10),%rsi
\n\t
"
/* exception list */
"movq %rsi,0(%r9)
\n\t
"
/* teb->Tib.ExceptionList */
"movq 0x10(%rbp),%rsi
\n\t
"
/* ret_ptr */
"movq 0x18(%rbp),%rdi
\n\t
"
/* ret_len */
"movq %rcx,(%rsi)
\n\t
"
"movq %rdx,(%rdi)
\n\t
"
"movdqa -0xe0(%rbp),%xmm15
\n\t
"
"movdqa -0xd0(%rbp),%xmm14
\n\t
"
"movdqa -0xc0(%rbp),%xmm13
\n\t
"
"movdqa -0xb0(%rbp),%xmm12
\n\t
"
"movdqa -0xa0(%rbp),%xmm11
\n\t
"
"movdqa -0x90(%rbp),%xmm10
\n\t
"
"movdqa -0x80(%rbp),%xmm9
\n\t
"
"movdqa -0x70(%rbp),%xmm8
\n\t
"
"movdqa -0x60(%rbp),%xmm7
\n\t
"
"movdqa -0x50(%rbp),%xmm6
\n\t
"
"ldmxcsr -0x40(%rbp)
\n\t
"
"fnclex
\n\t
"
"fldcw -0x3c(%rbp)
\n\t
"
"movq -0x38(%rbp),%r15
\n\t
"
__ASM_CFI
(
".cfi_same_value %r15
\n\t
"
)
"movq -0x30(%rbp),%r14
\n\t
"
__ASM_CFI
(
".cfi_same_value %r14
\n\t
"
)
"movq -0x28(%rbp),%r13
\n\t
"
__ASM_CFI
(
".cfi_same_value %r13
\n\t
"
)
"movq -0x20(%rbp),%r12
\n\t
"
__ASM_CFI
(
".cfi_same_value %r12
\n\t
"
)
"movq -0x18(%rbp),%rdi
\n\t
"
__ASM_CFI
(
".cfi_same_value %rdi
\n\t
"
)
"movq -0x10(%rbp),%rsi
\n\t
"
__ASM_CFI
(
".cfi_same_value %rsi
\n\t
"
)
"movq -0x08(%rbp),%rbx
\n\t
"
__ASM_CFI
(
".cfi_same_value %rbx
\n\t
"
)
"leave
\n
"
__ASM_CFI
(
".cfi_def_cfa %rsp,8
\n\t
"
)
__ASM_CFI
(
".cfi_same_value %rbp
\n\t
"
)
"movq %r8,%rax
\n\t
"
"retq"
)
/***********************************************************************
* 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
};
struct
syscall_frame
*
frame
=
amd64_thread_data
()
->
syscall_frame
;
void
*
args_data
=
(
void
*
)((
frame
->
rsp
-
len
)
&
~
15
);
ULONG_PTR
*
stack
=
args_data
;
/* 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
*
)
amd64_thread_data
()
->
syscall_frame
)
if
((
char
*
)
&
frame
<
(
char
*
)
ntdll_get_thread_data
()
->
kernel_stack
||
(
char
*
)
&
frame
>
(
char
*
)
amd64_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
)
if
((
char
*
)
ntdll_get_thread_data
()
->
kernel_stack
+
min_kernel_stack
>
(
char
*
)
&
frame
)
return
STATUS_STACK_OVERFLOW
;
if
(
!
__wine_setjmpex
(
&
callback_frame
.
jmpbuf
,
NULL
))
{
struct
syscall_frame
*
frame
=
amd64_thread_data
()
->
syscall_frame
;
void
*
args_data
=
(
void
*
)((
frame
->
rsp
-
len
)
&
~
15
);
memcpy
(
args_data
,
args
,
len
);
callback_frame
.
frame
.
rcx
=
id
;
callback_frame
.
frame
.
rdx
=
(
ULONG_PTR
)
args
;
callback_frame
.
frame
.
r8
=
len
;
callback_frame
.
frame
.
cs
=
cs64_sel
;
callback_frame
.
frame
.
fs
=
amd64_thread_data
()
->
fs
;
callback_frame
.
frame
.
gs
=
ds64_sel
;
callback_frame
.
frame
.
ss
=
ds64_sel
;
callback_frame
.
frame
.
rsp
=
(
ULONG_PTR
)
args_data
-
0x28
;
callback_frame
.
frame
.
rip
=
(
ULONG_PTR
)
pKiUserCallbackDispatcher
;
callback_frame
.
frame
.
eflags
=
0x200
;
callback_frame
.
frame
.
restore_flags
=
CONTEXT_CONTROL
|
CONTEXT_INTEGER
;
callback_frame
.
frame
.
prev_frame
=
frame
;
callback_frame
.
frame
.
syscall_flags
=
frame
->
syscall_flags
;
callback_frame
.
frame
.
syscall_table
=
frame
->
syscall_table
;
callback_frame
.
teb_frame
=
NtCurrentTeb
()
->
Tib
.
ExceptionList
;
amd64_thread_data
()
->
syscall_frame
=
&
callback_frame
.
frame
;
__wine_syscall_dispatcher_return
(
&
callback_frame
.
frame
,
0
);
}
return
callback_frame
.
status
;
memcpy
(
args_data
,
args
,
len
);
*
(
--
stack
)
=
0
;
*
(
--
stack
)
=
len
;
*
(
--
stack
)
=
(
ULONG_PTR
)
args_data
;
*
(
--
stack
)
=
id
;
*
(
--
stack
)
=
0xdeadbabe
;
return
call_user_mode_callback
(
pKiUserCallbackDispatcher
,
stack
,
ret_ptr
,
ret_len
,
NtCurrentTeb
()
);
}
...
...
@@ -1616,16 +1718,8 @@ NTSTATUS WINAPI KeUserModeCallback( ULONG id, const void *args, ULONG len, void
*/
NTSTATUS
WINAPI
NtCallbackReturn
(
void
*
ret_ptr
,
ULONG
ret_len
,
NTSTATUS
status
)
{
struct
user_callback_frame
*
frame
=
(
struct
user_callback_frame
*
)
amd64_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
;
amd64_thread_data
()
->
syscall_frame
=
frame
->
frame
.
prev_frame
;
NtCurrentTeb
()
->
Tib
.
ExceptionList
=
frame
->
teb_frame
;
__wine_longjmp
(
&
frame
->
jmpbuf
,
1
);
if
(
!
amd64_thread_data
()
->
syscall_frame
->
prev_frame
)
return
STATUS_NO_CALLBACK_ACTIVE
;
user_mode_callback_return
(
ret_ptr
,
ret_len
,
status
,
NtCurrentTeb
()
);
}
...
...
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