36ebdfc6b6
This fixes unwinding through RtlRaiseException and call_consolidate_callback in PE builds. Adjust the call_consolidate_callback function to store the whole context on the stack, and use the seh "context" opcode for unwinding to that context instead of the parent. Adjust the dwarf escape codes for reading from the context on the stack. Signed-off-by: Martin Storsjo <martin@martin.st> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
151 lines
4.9 KiB
C
151 lines
4.9 KiB
C
/*
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* Inline assembly support
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*
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* Copyright 2019 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_WINE_ASM_H
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#define __WINE_WINE_ASM_H
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#if defined(__APPLE__) || (defined(_WIN32) && defined(__i386__))
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# define __ASM_NAME(name) "_" name
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#else
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# define __ASM_NAME(name) name
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#endif
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#if defined(_WIN32) && defined(__i386__)
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# define __ASM_STDCALL(name,args) __ASM_NAME(name) "@" #args
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#else
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# define __ASM_STDCALL(name,args) __ASM_NAME(name)
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#endif
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#if defined(__GCC_HAVE_DWARF2_CFI_ASM) || (defined(__clang__) && defined(__GNUC__) && !defined(__SEH__))
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# define __ASM_CFI(str) str
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#else
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# define __ASM_CFI(str)
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#endif
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#ifdef __SEH__
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# if defined(__aarch64__) && defined(__clang_major__) && (__clang_major__ < 12 || defined(__apple_build_version__))
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/* Clang got support for aarch64 SEH assembly directives in Clang 12,
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* before that, only .seh_startproc/.seh_endproc but nothing else was
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* supported. Support for it doesn't exist in any Apple branded version
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* of Clang yet. */
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# define __ASM_SEH(str)
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# else
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# define __ASM_SEH(str) str
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# endif
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#else
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# define __ASM_SEH(str)
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#endif
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#ifdef _WIN32
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# define __ASM_FUNC_TYPE(name) ".def " name "; .scl 2; .type 32; .endef"
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#elif defined(__APPLE__)
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# define __ASM_FUNC_TYPE(name) ""
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#elif defined(__arm__) || defined(__arm64__)
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# define __ASM_FUNC_TYPE(name) ".type " name ",%function"
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#else
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# define __ASM_FUNC_TYPE(name) ".type " name ",@function"
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#endif
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#if !defined(__GNUC__) && !defined(__clang__)
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# define __ASM_BLOCK_BEGIN(name) void __asm_dummy_##name(void) {
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# define __ASM_BLOCK_END }
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#else
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# define __ASM_BLOCK_BEGIN(name)
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# define __ASM_BLOCK_END
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#endif
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#define __ASM_DEFINE_FUNC(name,code) \
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__ASM_BLOCK_BEGIN(__LINE__) \
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asm(".text\n\t.align 4\n\t.globl " name "\n\t" __ASM_FUNC_TYPE(name) __ASM_SEH("\n\t.seh_proc " name) "\n" name ":\n\t" \
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__ASM_CFI(".cfi_startproc\n\t") code __ASM_CFI("\n\t.cfi_endproc") __ASM_SEH("\n\t.seh_endproc") ); \
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__ASM_BLOCK_END
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#define __ASM_GLOBAL_FUNC(name,code) __ASM_DEFINE_FUNC(__ASM_NAME(#name),code)
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#define __ASM_STDCALL_FUNC(name,args,code) __ASM_DEFINE_FUNC(__ASM_STDCALL(#name,args),code)
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/* fastcall support */
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#if defined(__i386__) && !defined(_WIN32)
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# define DEFINE_FASTCALL1_WRAPPER(func) \
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__ASM_STDCALL_FUNC( __fastcall_ ## func, 4, \
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"popl %eax\n\t" \
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"pushl %ecx\n\t" \
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"pushl %eax\n\t" \
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"jmp " __ASM_STDCALL(#func,4) )
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# define DEFINE_FASTCALL_WRAPPER(func,args) \
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__ASM_STDCALL_FUNC( __fastcall_ ## func, args, \
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"popl %eax\n\t" \
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"pushl %edx\n\t" \
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"pushl %ecx\n\t" \
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"pushl %eax\n\t" \
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"jmp " __ASM_STDCALL(#func,args) )
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#else /* __i386__ */
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# define DEFINE_FASTCALL1_WRAPPER(func) /* nothing */
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# define DEFINE_FASTCALL_WRAPPER(func,args) /* nothing */
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#endif /* __i386__ */
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/* thiscall support */
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#if defined(__i386__) && !defined(__MINGW32__) && (!defined(_MSC_VER) || !defined(__clang__))
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#define __ASM_USE_THISCALL_WRAPPER
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# ifdef _MSC_VER
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# define DEFINE_THISCALL_WRAPPER(func,args) \
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__declspec(naked) void __thiscall_##func(void) \
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{ __asm { \
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pop eax \
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push ecx \
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push eax \
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jmp func \
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} }
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# else /* _MSC_VER */
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# define DEFINE_THISCALL_WRAPPER(func,args) \
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extern void __thiscall_ ## func(void); \
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__ASM_STDCALL_FUNC( __thiscall_ ## func, args, \
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"popl %eax\n\t" \
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"pushl %ecx\n\t" \
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"pushl %eax\n\t" \
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"jmp " __ASM_STDCALL(#func,args) )
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# endif /* _MSC_VER */
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# define THISCALL(func) (void *)__thiscall_ ## func
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# define THISCALL_NAME(func) __ASM_NAME("__thiscall_" #func)
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#else /* __i386__ */
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# define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
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# define THISCALL(func) func
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# define THISCALL_NAME(func) __ASM_NAME(#func)
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#endif /* __i386__ */
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#if defined(__GNUC__) && !defined(_WIN32) && !defined(__APPLE__) && !defined(__ANDROID__)
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#define __ASM_OBSOLETE(func) __asm__( ".symver " #func "_obsolete," #func "@WINE_1.0" )
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#else
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#undef __ASM_OBSOLETE
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#endif
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#endif /* __WINE_WINE_ASM_H */
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