下面是一个GCC常用的编译选项示例: CFLAGS:=-Wall-Wundef-Wshadow-Wconversion-Werror=return-type\-Werror=implicit-function-declaration-Werror=unused-variable\-fno-strict-aliasing-fno-common-fshort-wchar-fno-PIE\-Wno-trigraphs-Os 对于调试版本,可将 -Os 替换为 -g -Og。 1、调试选项 为了能够正常使用...
CFLAGS := -Wall -Wundef -Wshadow -Wconversion -Werror=return-type \ -Werror=implicit-function-declaration -Werror=unused-variable \ -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \ -Wno-trigraphs -Os 对于调试版本,将-Os替换为-g -Og。 一 警告选项 GCC编译器支持对代码进行诊断,针...
其中option 为 gcc 使用时的选项(后面会再详述), 而filename 为欲以 gcc 处理的文件 说明: 这C 与 C++ 的 compiler 已将产生新程序的相关程序整合起来。产 生一个新的程序需要经过四个阶段:预处理、编译、汇编、连结,而这两 个编译器都能将输入的文件做不同阶段的处理。虽然原始程序的扩展名可 用来分辨编...
例子 KBUILD_CFLAGS := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \-Werror=implicit-function-declaration -Werror=implicit-int\-Werror=return-type -Wno-format \-std=gnu89 GCC链接选项LDFLAGS参数 LIBS LDFLAGS是选项,LIBS是要...
EN在编译时检测wchar_t大小的最好方法是什么，这样我就可以正确地将它映射到适当的utf-16或utf-32类型...
-fshort-double -fvolatile -fvolatile-global -fverbose-asm PRAGMAS Two `#pragma' directives are supported for GNU C++, to permit using the same header file for two purposes: as a definition of interfaces to a given object class, and as ...
-fshort-double -fvolatile -fvolatile-global -fverbose-asm PRAGMAS Two `#pragma' directives are supported for GNU C++, to permit using the same header file for two purposes: as a definition of interfaces to a given object class, and as ...
使用AECHAR的话,GCC默认是4个字节,与BREW标准不符。需要使用一个编译选项-fshort-wchar,否则使用宽字符串的地方会出错。 6.浮点数问题 GCC的double格式可以称为middle endian(即DWORD内部是little endian,DWORD之间是big endian),这与手机上的BREW实现是不一致的。因此如果调用BREW的浮点数接口,例如FADD / WSTRTOF...
-fshort-double -fvolatile -fvolatile-global -fverbose-asm PRAGMAS Two `#pragma' directives are supported for GNU C++, to permit using the same header file for two purposes: as a definition of interfaces to a given object class, and as ...
-fshort-double -fvolatile -fvolatile-global -fverbose-asm PRAGMAS Two `#pragma' directives are supported for GNU C++, to permit using the same header file for two purposes: as a definition of interfaces to a given object class, and as ...