在 Visual Studio 中从 asm 调用 C 标准库函数 [英] Call C standard library function from asm in Visual Studio

问题描述

我在从 Visual Studio(Win10 x64、Visual Studio 2015)中创建的 asm 项目中调用 C 函数时遇到问题.项目由一个 asm 文件组成:

I have a problem with calling C function from asm project created in visual studio (Win10 x64, Visual Studio 2015). Project consist of one asm file:

.586
.model flat, stdcall
option casemap:none
includelib msvcrt.lib

ExitProcess PROTO return:DWORD
extern printf:near

.data
text BYTE "Text", 0

.code
main PROC
    push offset text
    call printf
    add esp,4
    invoke ExitProcess,0
main ENDP
end main

当我构建项目时，链接器输出错误:

When I build project, linker outputs the error:

错误 LNK2019 未解析的外部符号 _printf 引用函数_main@0

Error LNK2019 unresolved external symbol _printf referenced in function _main@0

链接器输出参数:

/OUT:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.exe"/清单:否/NXCOMPAT/PDB:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.pdb"/DYNAMICBASE "kernel32.lib" "user32.lib" "gdi32.lib" "winspool.lib"comdlg32.lib" advapi32.lib" shell32.lib" ole32.lib" oleaut32.lib""uuid.lib" "odbc32.lib" "odbccp32.lib"/MACHINE:X86/SAFESEH:NO/增量:否/PGD:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.pgd"/SUBSYSTEM:WINDOWS/MANIFESTUAC:"level='asInvoker' uiAccess='false'"/ManifestFile:"DebugSP_Lab7_Demo.exe.intermediate.manifest"/错误报告:提示/NOLOGO/TLBID:1

/OUT:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.exe" /MANIFEST:NO /NXCOMPAT /PDB:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.pdb" /DYNAMICBASE "kernel32.lib" "user32.lib" "gdi32.lib" "winspool.lib" "comdlg32.lib" "advapi32.lib" "shell32.lib" "ole32.lib" "oleaut32.lib" "uuid.lib" "odbc32.lib" "odbccp32.lib" /MACHINE:X86 /SAFESEH:NO /INCREMENTAL:NO /PGD:"C:UsersappleDocumentsSP_Lab7DebugSP_Lab7_Demo.pgd" /SUBSYSTEM:WINDOWS /MANIFESTUAC:"level='asInvoker' uiAccess='false'" /ManifestFile:"DebugSP_Lab7_Demo.exe.intermediate.manifest" /ERRORREPORT:PROMPT /NOLOGO /TLBID:1

如果我注释 call print，那么一切都会正常执行(甚至是 Windows API 函数).有没有办法从 asm 文件调用 C 函数而不创建包含 的 cpp 文件?可以吗?

If I comment call print, then everything executes normally (even Windows API function). Is there any way to call C function from asm file without creating cpp file that includes <cstdio>? Is it possible to do?

推荐答案

Microsoft 在 VS 2015 中重构了大部分 C 运行时和库.某些函数不再从 C 库(有些在 C 头文件中定义).Microsoft 有一些兼容性库，例如 legacy_stdio_definitions.lib 和 legacy_stdio_wide_specifiers.lib，但您也可以选择将较旧的 Visual Studio 2013 平台工具集与较旧的 C 库.

Microsoft refactored much of the C runtime and libraries in VS 2015. Some functions are no longer exported from the C library (some are defined in a C header file). Microsoft has some compatibility libraries like legacy_stdio_definitions.lib and legacy_stdio_wide_specifiers.lib, but you can also choose to use the older Visual Studio 2013 platform toolset with the older C libraries.

改变平台工具集:下拉Project菜单；选择属性...;转到Configuration Properties/General，并将Platform Toolset 更改为Visual Studio 2013 (v120)

To change the platform toolset: pull down the Project menu; select Properties...; go to Configuration Properties/General, and change Platform Toolset to Visual Studio 2013 (v120)

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