Skip to content
GitLab
Explore
Sign in
Register
Primary navigation
Search or go to…
Project
wine
Manage
Activity
Members
Labels
Code
Merge requests
Repository
Branches
Commits
Tags
Repository graph
Compare revisions
Snippets
Build
Pipelines
Jobs
Pipeline schedules
Artifacts
Deploy
Package registry
Container Registry
Model registry
Operate
Terraform modules
Analyze
Value stream analytics
Contributor analytics
CI/CD analytics
Repository analytics
Model experiments
Help
Help
Support
GitLab documentation
Compare GitLab plans
Community forum
Contribute to GitLab
Provide feedback
Keyboard shortcuts
?
Snippets
Groups
Projects
Show more breadcrumbs
Yoann Laissus
wine
Commits
5f308d3c
Commit
5f308d3c
authored
24 years ago
by
Jon Griffiths
Committed by
Alexandre Julliard
24 years ago
Browse files
Options
Downloads
Patches
Plain Diff
Added some exception handling functions.
parent
e884cc2b
No related branches found
Branches containing commit
No related tags found
Tags containing commit
No related merge requests found
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
dlls/msvcrt/except.c
+122
-27
122 additions, 27 deletions
dlls/msvcrt/except.c
with
122 additions
and
27 deletions
dlls/msvcrt/except.c
+
122
−
27
View file @
5f308d3c
...
...
@@ -6,10 +6,10 @@
* See http://www.microsoft.com/msj/0197/exception/exception.htm,
* but don't believe all of it.
*
* FIXME: Incomplete
, no
support for nested exceptions
or
try block cleanup.
* FIXME: Incomplete support for nested exceptions
/
try block cleanup.
*/
#include
<setjmp.h>
#include
"ntddk.h"
#include
"wine/exception.h"
#include
"thread.h"
#include
"msvcrt.h"
...
...
@@ -21,28 +21,41 @@ typedef void (*MSVCRT_sig_handler_func)(void);
typedef
struct
_SCOPETABLE
{
DWORD
previousTryLevel
;
int
(
__cdecl
*
lpfnFilter
)(
int
,
PEXCEPTION_POINTERS
);
int
(
__cdecl
*
lpfnHandler
)(
PEXCEPTION_RECORD
,
PEXCEPTION_FRAME
,
PCONTEXT
,
PEXCEPTION_FRAME
*
);
int
(
__cdecl
*
lpfnFilter
)(
PEXCEPTION_POINTERS
);
int
(
__cdecl
*
lpfnHandler
)(
void
);
}
SCOPETABLE
,
*
PSCOPETABLE
;
typedef
struct
_MSVCRT_EXCEPTION_
REGISTRATION
typedef
struct
_MSVCRT_EXCEPTION_
FRAME
{
struct
_
EXCEPTION_
REGISTRATION
*
prev
;
EXCEPTION_
FRAME
*
prev
;
void
(
*
handler
)(
PEXCEPTION_RECORD
,
PEXCEPTION_FRAME
,
PCONTEXT
,
PEXCEPTION_RECORD
);
PSCOPETABLE
scopetable
;
int
trylevel
;
DWORD
trylevel
;
int
_ebp
;
PEXCEPTION_POINTERS
xpointers
;
}
MSVCRT_EXCEPTION_
REGISTRATION
;
}
MSVCRT_EXCEPTION_
FRAME
;
typedef
struct
_EXCEPTION_REGISTRATION
#define TRYLEVEL_END 0xff
/* End of trylevel list */
#if defined(__GNUC__) && defined(__i386__)
#define CALL_FINALLY_BLOCK(code_block, base_ptr) \
__asm__ __volatile__ ("movl %0,%%eax; movl %1,%%ebp; call *%%eax" \
: : "g" (code_block), "g" (base_ptr))
static
DWORD
__cdecl
MSVCRT_nested_handler
(
PEXCEPTION_RECORD
rec
,
struct
__EXCEPTION_FRAME
*
frame
,
PCONTEXT
context
WINE_UNUSED
,
struct
__EXCEPTION_FRAME
**
dispatch
)
{
struct
_EXCEPTION_REGISTRATION
*
prev
;
void
(
*
handler
)(
PEXCEPTION_RECORD
,
PEXCEPTION_FRAME
,
PCONTEXT
,
PEXCEPTION_RECORD
);
}
EXCEPTION_REGISTRATION
;
if
(
rec
->
ExceptionFlags
&
0x6
)
return
ExceptionContinueSearch
;
*
dispatch
=
frame
;
return
ExceptionCollidedUnwind
;
}
#endif
/*********************************************************************
* _XcptFilter (MSVCRT.@)
...
...
@@ -75,22 +88,42 @@ __ASM_GLOBAL_FUNC(MSVCRT__EH_prolog,
*/
void
__cdecl
MSVCRT__global_unwind2
(
PEXCEPTION_FRAME
frame
)
{
#if defined(__GNUC__) && defined(__i386__)
TRACE
(
"(%p)
\n
"
,
frame
);
if
(
0
)
unwind_label:
return
;
RtlUnwind
(
frame
,
&&
unwind_label
,
0
,
0
);
#else
FIXME
(
"(%p) stub
\n
"
,
frame
);
#endif
TRACE
(
"(%p)
\n
"
,
frame
);
RtlUnwind
(
frame
,
0
,
0
,
0
);
}
/*******************************************************************
* _local_unwind2 (MSVCRT.@)
*/
void
__cdecl
MSVCRT__local_unwind2
(
MSVCRT_EXCEPTION_REGISTRATION
*
endframe
,
DWORD
nr
)
void
__cdecl
MSVCRT__local_unwind2
(
MSVCRT_EXCEPTION_FRAME
*
frame
,
DWORD
trylevel
)
{
FIXME
(
"(%p,%ld) stub
\n
"
,
endframe
,
nr
);
MSVCRT_EXCEPTION_FRAME
*
curframe
=
frame
;
DWORD
curtrylevel
=
0xfe
;
EXCEPTION_FRAME
reg
;
TRACE
(
"(%p,%ld,%ld)
\n
"
,
frame
,
frame
->
trylevel
,
trylevel
);
/* Register a handler in case of a nested exception */
reg
.
Handler
=
(
PEXCEPTION_HANDLER
)
MSVCRT_nested_handler
;
reg
.
Prev
=
NtCurrentTeb
()
->
except
;
__wine_push_frame
(
&
reg
);
while
(
frame
->
trylevel
!=
TRYLEVEL_END
&&
frame
->
trylevel
!=
trylevel
)
{
curtrylevel
=
frame
->
scopetable
[
frame
->
trylevel
].
previousTryLevel
;
curframe
=
frame
;
curframe
->
trylevel
=
curtrylevel
;
if
(
!
frame
->
scopetable
[
curtrylevel
].
lpfnFilter
)
{
ERR
(
"__try block cleanup not implemented - expect crash!
\n
"
);
/* FIXME: Remove current frame, set ebp, call
* frame->scopetable[curtrylevel].lpfnHandler()
*/
}
}
__wine_pop_frame
(
&
reg
);
TRACE
(
"unwound OK
\n
"
);
}
/*********************************************************************
...
...
@@ -98,7 +131,8 @@ void __cdecl MSVCRT__local_unwind2(MSVCRT_EXCEPTION_REGISTRATION *endframe, DWOR
*/
int
__cdecl
MSVCRT__except_handler2
(
PEXCEPTION_RECORD
rec
,
PEXCEPTION_FRAME
frame
,
PCONTEXT
context
,
PEXCEPTION_FRAME
*
dispatcher
)
PCONTEXT
context
,
PEXCEPTION_FRAME
*
dispatcher
)
{
FIXME
(
"exception %lx flags=%lx at %p handler=%p %p %p stub
\n
"
,
rec
->
ExceptionCode
,
rec
->
ExceptionFlags
,
rec
->
ExceptionAddress
,
...
...
@@ -110,12 +144,73 @@ int __cdecl MSVCRT__except_handler2(PEXCEPTION_RECORD rec,
* _except_handler3 (MSVCRT.@)
*/
int
__cdecl
MSVCRT__except_handler3
(
PEXCEPTION_RECORD
rec
,
MSVCRT_EXCEPTION_
REGISTRATION
*
frame
,
MSVCRT_EXCEPTION_
FRAME
*
frame
,
PCONTEXT
context
,
void
*
dispatcher
)
{
FIXME
(
"exception %lx flags=%lx at %p handler=%p %p %p stub
\n
"
,
#if defined(__GNUC__) && defined(__i386__)
long
retval
,
trylevel
;
EXCEPTION_POINTERS
exceptPtrs
;
PSCOPETABLE
pScopeTable
;
TRACE
(
"exception %lx flags=%lx at %p handler=%p %p %p semi-stub
\n
"
,
rec
->
ExceptionCode
,
rec
->
ExceptionFlags
,
rec
->
ExceptionAddress
,
frame
->
handler
,
context
,
dispatcher
);
__asm__
__volatile__
(
"cld"
);
if
(
rec
->
ExceptionFlags
&
(
EH_UNWINDING
|
EH_EXIT_UNWIND
))
{
/* Unwinding the current frame */
MSVCRT__local_unwind2
(
frame
,
TRYLEVEL_END
);
return
ExceptionContinueSearch
;
}
else
{
/* Hunting for handler */
exceptPtrs
.
ExceptionRecord
=
rec
;
exceptPtrs
.
ContextRecord
=
context
;
*
((
DWORD
*
)
frame
-
1
)
=
(
DWORD
)
&
exceptPtrs
;
trylevel
=
frame
->
trylevel
;
pScopeTable
=
frame
->
scopetable
;
while
(
trylevel
!=
TRYLEVEL_END
)
{
if
(
pScopeTable
[
trylevel
].
lpfnFilter
)
{
TRACE
(
"filter = %p
\n
"
,
pScopeTable
[
trylevel
].
lpfnFilter
);
retval
=
pScopeTable
[
trylevel
].
lpfnFilter
(
&
exceptPtrs
);
TRACE
(
"filter returned %s
\n
"
,
retval
==
EXCEPTION_CONTINUE_EXECUTION
?
"CONTINUE_EXECUTION"
:
retval
==
EXCEPTION_EXECUTE_HANDLER
?
"EXECUTE_HANDLER"
:
"CONTINUE_SEARCH"
);
if
(
retval
==
EXCEPTION_CONTINUE_EXECUTION
)
return
ExceptionContinueExecution
;
if
(
retval
==
EXCEPTION_EXECUTE_HANDLER
)
{
/* Unwind all higher frames, this one will handle the exception */
MSVCRT__global_unwind2
((
PEXCEPTION_FRAME
)
frame
);
MSVCRT__local_unwind2
(
frame
,
trylevel
);
/* Set our trylevel to the enclosing block, and call the __finally
* code, which won't return
*/
frame
->
trylevel
=
pScopeTable
->
previousTryLevel
;
TRACE
(
"__finally block %p
\n
"
,
pScopeTable
[
trylevel
].
lpfnHandler
);
CALL_FINALLY_BLOCK
(
pScopeTable
[
trylevel
].
lpfnHandler
,
frame
->
_ebp
);
ERR
(
"Returned from __finally block - expect crash!
\n
"
);
}
}
trylevel
=
pScopeTable
->
previousTryLevel
;
}
}
#else
TRACE
(
"exception %lx flags=%lx at %p handler=%p %p %p stub
\n
"
,
rec
->
ExceptionCode
,
rec
->
ExceptionFlags
,
rec
->
ExceptionAddress
,
frame
->
handler
,
context
,
dispatcher
);
#endif
return
ExceptionContinueSearch
;
}
...
...
This diff is collapsed.
Click to expand it.
Preview
0%
Loading
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Save comment
Cancel
Please
register
or
sign in
to comment