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cd9c1d97
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cd9c1d97
编写于
4月 09, 2021
作者:
Y
YOUR_NAME
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电子邮件补丁
差异文件
[Desc] Modify IsValidFP to IsValidVaddr for issues I3HWYP
Change-Id: I0580a9328f8824869f1744f31cbfc2bf85516f66
上级
3e317714
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
13 addition
and
9 deletion
+13
-9
arch/arm/arm/src/los_exc.c
arch/arm/arm/src/los_exc.c
+13
-9
未找到文件。
arch/arm/arm/src/los_exc.c
浏览文件 @
cd9c1d97
...
...
@@ -574,8 +574,12 @@ STATIC VOID OsUserExcHandle(ExcContext *excBufAddr)
PrintExcInfo
(
"User mode exception ends unscheduled!
\n
"
);
}
/* this function is used to validate fp or validate the checking range start and end. */
STATIC
INLINE
BOOL
IsValidFP
(
UINTPTR
regFP
,
UINTPTR
start
,
UINTPTR
end
,
vaddr_t
*
vaddr
)
/*
* This function is used to determine whether the first input parameter is a valid virtual address.
* If it is, it is converted into a kernel virtual address and the converted kernel virtual address
* is used as an output parameter.
*/
STATIC
INLINE
BOOL
IsValidVaddr
(
UINTPTR
regFP
,
UINTPTR
start
,
UINTPTR
end
,
vaddr_t
*
vaddr
)
{
VADDR_T
kvaddr
=
regFP
;
...
...
@@ -618,7 +622,7 @@ STATIC INLINE BOOL FindSuitableStack(UINTPTR regFP, UINTPTR *start, UINTPTR *end
taskCB
=
OsCurrTaskGet
();
stackStart
=
taskCB
->
userMapBase
;
stackEnd
=
taskCB
->
userMapBase
+
taskCB
->
userMapSize
;
if
(
IsValid
FP
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
if
(
IsValid
Vaddr
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
found
=
TRUE
;
goto
FOUND
;
}
...
...
@@ -634,7 +638,7 @@ STATIC INLINE BOOL FindSuitableStack(UINTPTR regFP, UINTPTR *start, UINTPTR *end
stackStart
=
taskCB
->
topOfStack
;
stackEnd
=
taskCB
->
topOfStack
+
taskCB
->
stackSize
;
if
(
IsValid
FP
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
if
(
IsValid
Vaddr
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
found
=
TRUE
;
goto
FOUND
;
}
...
...
@@ -645,7 +649,7 @@ STATIC INLINE BOOL FindSuitableStack(UINTPTR regFP, UINTPTR *start, UINTPTR *end
stack
=
&
g_excStack
[
index
];
stackStart
=
(
UINTPTR
)
stack
->
stackTop
;
stackEnd
=
stackStart
+
LOSCFG_KERNEL_CORE_NUM
*
stack
->
stackSize
;
if
(
IsValid
FP
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
if
(
IsValid
Vaddr
(
regFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
found
=
TRUE
;
goto
FOUND
;
}
...
...
@@ -681,23 +685,23 @@ VOID BackTraceSub(UINTPTR regFP)
* will still be stored and updated. In that case we needs to find the right position of frame pointer.
*/
tmpFP
=
*
(
UINTPTR
*
)(
UINTPTR
)
kvaddr
;
if
(
IsValid
FP
(
tmpFP
,
stackStart
,
stackEnd
,
NULL
)
==
TRUE
)
{
if
(
IsValid
Vaddr
(
tmpFP
,
stackStart
,
stackEnd
,
NULL
)
==
TRUE
)
{
backFP
=
tmpFP
;
PrintExcInfo
(
"traceback fp fixed, trace using fp = 0x%x
\n
"
,
backFP
);
}
while
(
IsValid
FP
(
backFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
while
(
IsValid
Vaddr
(
backFP
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
TRUE
)
{
tmpFP
=
backFP
;
#ifdef LOSCFG_COMPILER_CLANG_LLVM
backFP
=
*
(
UINTPTR
*
)(
UINTPTR
)
kvaddr
;
if
(
IsValid
FP
(
tmpFP
+
POINTER_SIZE
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
FALSE
)
{
if
(
IsValid
Vaddr
(
tmpFP
+
POINTER_SIZE
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
FALSE
)
{
PrintExcInfo
(
"traceback backLR check failed, backLP: 0x%x
\n
"
,
tmpFP
+
POINTER_SIZE
);
return
;
}
backLR
=
*
(
UINTPTR
*
)(
UINTPTR
)
kvaddr
;
#else
backLR
=
*
(
UINTPTR
*
)(
UINTPTR
)
kvaddr
;
if
(
IsValid
FP
(
tmpFP
-
POINTER_SIZE
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
FALSE
)
{
if
(
IsValid
Vaddr
(
tmpFP
-
POINTER_SIZE
,
stackStart
,
stackEnd
,
&
kvaddr
)
==
FALSE
)
{
PrintExcInfo
(
"traceback backFP check failed, backFP: 0x%x
\n
"
,
tmpFP
-
POINTER_SIZE
);
return
;
}
...
...
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