reactos/lib/pseh/amd64/framebased.S

   1 // Copyright (c) 2004/2005 KJK::Hyperion
   2
   3 // Permission is hereby granted, free of charge, to any person obtaining a copy
   4 // of this software and associated documentation files (the "Software"), to deal
   5 // in the Software without restriction, including without limitation the rights
   6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7 // copies of the Software, and to permit persons to whom the Software is
   8 // furnished to dos so, subject to the following conditions:
   9
  10 // The above copyright notice and this permission notice shall be included in all
  11 // copies or substantial portions of the Software.
  12
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  19 // SOFTWARE.
  20
  21 .text
  22 .intel_syntax noprefix
  23
  24 .globl __SEHCleanHandlerEnvironment
  25 __SEHCleanHandlerEnvironment:
  26         cld
  27         ret
  28
  29 .globl __SEHCurrentRegistration
  30 __SEHCurrentRegistration:
  31         mov rax, [fs:0]
  32         ret
  33
  34 .globl __SEHRegisterFrame
  35 __SEHRegisterFrame:
  36         mov rcx, [rsp+4]
  37         mov rax, [fs:0]
  38         mov [rcx+0], eax
  39         mov [fs:0], ecx
  40         ret
  41
  42 .globl __SEHUnregisterFrame
  43 __SEHUnregisterFrame:
  44         mov rcx, [fs:0]
  45         mov rcx, [rcx+0]
  46         mov [fs:0], rcx
  47         ret
  48
  49 .globl __SEHGlobalUnwind
  50 __SEHGlobalUnwind:
  51
  52 .extern __SEHRtlUnwind
  53
  54 // RtlUnwind clobbers all the "don't clobber" registers, so we save them
  55         push rbx
  56         mov rbx, [rsp+8]
  57         push rsi
  58         push rdi
  59
  60         push 0 // ReturnValue
  61         push 0 // ExceptionRecord
  62 //      push .RestoreRegisters // TargetIp
  63         push rbx // TargetFrame
  64 //      call [__SEHRtlUnwind]
  65
  66 .RestoreRegisters:
  67         pop rdi
  68         pop rsi
  69         pop rbx
  70
  71         ret
  72
  73 // EOF