added include/reactos/libs/pseh/pseh2.h
added lib/pseh/framebased-gcchack.c
added lib/pseh/i386/framebased-gcchack.S
modified lib/pseh/pseh.rbuild
Introducing PSEH 2.0. It only wants to be loved. Highlights of this version:
- PSEH 2.0 syntax is 99% compatible with native SEH syntax
- PSEH 2.0 binary code a vast improvement over 1.1 - no more setjmp, no bogus loops, no weird optimizer behavior
PSEH 2.0 is a horrible, GCC-only, x86-only hack. It makes several non-portable assumptions and hey, did you know __builtin_frame_address(0) is *not* the same thing as EBP? Overall, it must be a world record for compiler abuse
PSEH 2.0 is, sadly, not binary-compatible with PSEH 1.1, although I will almost certainly unify the implementation at a later time
PSEH 2.0 needs testers. And love.
Not implemented yet: returning from a SEH block (i.e. _SEH2_YIELD())
Example of 2.0 syntax (yes, _SEH2_END is unavoidable):
_SEH2_TRY
{
_SEH2_TRY
{
/* ... */
}
_SEH2_EXCEPT((/* ... */))
{
/* ... */
}
_SEH2_END;
}
_SEH2_FINALLY
{
/* ... */
}
_SEH2_END;
--
Happy early birthday, Aleksey.
svn path=/trunk/; revision=37315
2008-11-12 19:52:16 +00:00
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// Copyright (c) 2008 KJK::Hyperion
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to dos so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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.text
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.intel_syntax noprefix
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2008-11-12 20:39:18 +00:00
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.globl __SEH2CurrentRegistration
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__SEH2CurrentRegistration:
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mov eax, [fs:0]
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ret
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2008-11-26 16:03:12 +00:00
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.globl ___SEH2EnterFrame
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___SEH2EnterFrame:
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mov eax, [esp+4]
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mov ecx, [fs:0]
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mov [eax], ecx
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mov [fs:0], eax
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ret
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2008-11-26 16:15:29 +00:00
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.globl ___SEH2LeaveFrame
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___SEH2LeaveFrame:
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2008-11-26 16:03:12 +00:00
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mov eax, [fs:0]
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mov eax, [eax]
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mov [fs:0], eax
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ret
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.globl ___SEH2Handle
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___SEH2Handle:
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mov eax, [esp+4]
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mov ebp, [esp+8]
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mov esp, [esp+12]
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jmp eax
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added include/reactos/libs/pseh/pseh2.h
added lib/pseh/framebased-gcchack.c
added lib/pseh/i386/framebased-gcchack.S
modified lib/pseh/pseh.rbuild
Introducing PSEH 2.0. It only wants to be loved. Highlights of this version:
- PSEH 2.0 syntax is 99% compatible with native SEH syntax
- PSEH 2.0 binary code a vast improvement over 1.1 - no more setjmp, no bogus loops, no weird optimizer behavior
PSEH 2.0 is a horrible, GCC-only, x86-only hack. It makes several non-portable assumptions and hey, did you know __builtin_frame_address(0) is *not* the same thing as EBP? Overall, it must be a world record for compiler abuse
PSEH 2.0 is, sadly, not binary-compatible with PSEH 1.1, although I will almost certainly unify the implementation at a later time
PSEH 2.0 needs testers. And love.
Not implemented yet: returning from a SEH block (i.e. _SEH2_YIELD())
Example of 2.0 syntax (yes, _SEH2_END is unavoidable):
_SEH2_TRY
{
_SEH2_TRY
{
/* ... */
}
_SEH2_EXCEPT((/* ... */))
{
/* ... */
}
_SEH2_END;
}
_SEH2_FINALLY
{
/* ... */
}
_SEH2_END;
--
Happy early birthday, Aleksey.
svn path=/trunk/; revision=37315
2008-11-12 19:52:16 +00:00
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.globl ___SEH2Except
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___SEH2Except:
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mov eax, [esp+4]
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mov ecx, [esp+8]
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push [esp+12]
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call eax
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pop ecx
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ret
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.globl ___SEH2Finally
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___SEH2Finally:
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mov eax, [esp+4]
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mov ecx, [esp+8]
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call eax
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ret
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.globl __SEH2GlobalUnwind
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__SEH2GlobalUnwind:
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.extern _RtlUnwind@16
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push ebx
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mov ebx, [esp+8]
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push esi
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push edi
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push 0 // ReturnValue
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push 0 // ExceptionRecord
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push .RestoreRegisters // TargetIp
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push ebx // TargetFrame
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call _RtlUnwind@16
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.RestoreRegisters:
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pop edi
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pop esi
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pop ebx
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ret
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// EOF
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