1、预处理 对源码文件里的文件包括(include)、预编译语句(如宏定义define等)进行分析,编译选项为gcc -E *.c #define DEBUG "debug" int main() { char *a = DEBUG; return 1; } 经过上面的预处理后,能够看到DEBUG被替换成了提前定义的内容 # 1 "hello.c" # 1 "<built-in>" # 1 "<command-lin...
指示新文件的开始 the start of a new file. 返回到一个文件(在include其他文件后) returning to a file (after having included another file). 之后的文本来自系统头文件,故部分warning会被隐藏 the following text comes from a system header file, so certain warnings should be suppressed. 之后的文本被视...
(Often the prerequisites include header files as well, which you do not want to mention in the recipe. The automatic variable `$<' is just the first prerequisite:) 示例: VPATH = src:../headers foo.o : foo.c defs.h hack.hcc -c $(CFLAGS) $< -o $@ 这里$<就是foo.c 四,其他问题...
# 27 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4 # 33 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 3 4 # 1 "/usr/include/features.h" 1 3 4 # 461 "/usr/include/features.h" 3 4 # 1 "/usr/include/x86...
--generate_entries_without_bounds Generate functions for use from non-instrumented code --guard_calls Use a guard call for a function static initialization --header_context Adds include file context to diagnostics -I directory Add #include search directory --ignore_uninstrumented_pointers Disable check...
driver program uses when determining what switches to pass to cc1, cc1plus, as, ld, etc. More than one -specs=file For C and C++ source and include files, generate corresponding Ada specs. In conjunction with -fdump-ada-spec[-slim] above, generate Ada specs as child units of parent uni...
使用命令gcc test.c -E -o test.i,通过预处理器得到预处理后的源代码。可以看到,经过预处理后的源代码主要完成了三件事情:将 include 进行展开,删除注释以及 define 的替换。 # 1 "test.c"# 1 "<built-in>"# 1 "<command-line>"# 31 "<command-line>"# 1 "/usr/include/stdc-predef.h" 1 3...
Each name is indented to show how deep in the ‘#include’ stack it is. Precompiled header files are also printed, even if they are found to be invalid; an invalid precompiled header file is printed with ‘...x’ and a valid one with ‘...!’ . 1.1xmake的命令行 输出无gch文件 /...
# 1 "<command-line>" # 31 "<command-line>" # 1 "/usr/include/stdc-predef.h" 1 3 4 # 32 "<command-line>" 2 # 1 "hello.c" # 1 "/usr/include/stdio.h" 1 3 4 # 27 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 ...
4、ma once 出现在主文件中 #pragma system_header ignored outside include file #pragma system_heade 在包含文件外被忽略 %.*s is not a valid universal character %.*s 不是一个有效的 Unicode 字符 %s in preprocessing directive 预处理指示中出现 %s %s is a block device %s 是一个块设备 %s is...