C语言 编译 C 代码时遇到问题：错误：在“int”之前应为“=”、“、”、“；”、“asm”或“__attribute__”
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Trouble compiling C code: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'
提问by Jacobo Soffer
I'm using James M tutorialson writing a kernel. I writing the code with a cross compiler for the elf-i386 arch on macOS 10.12 with GCC 6.2.0 and Binutils.
我正在使用James M 教程编写内核。我在 macOS 10.12 上使用 GCC 6.2.0 和 Binutils 使用交叉编译器为 elf-i386 arch 编写代码。
Everything compiles exceptmain.c, which fails with this error:
一切编译除外main.c，它失败，此错误：
Error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int'.
错误：在 'int' 之前应为 '=', ',', ';', 'asm' 或 '__attribute__'。
However, the file is exactly as it is in the tutorial. Can anyone help me figure out why?
但是，该文件与教程中的完全相同。谁能帮我弄清楚为什么？
/*
Sierra Kernel
kernel.c -- Main kernel file
Copyright (C) 2017 Jacobo Soffer <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <os.h>
int main(struct multiboot *mboot_ptr)
{
kprint("Welcome to the Sierra Kernel! \n"); // Test VGA Driver
kprint(BUILD_FULL); // Print version information
asm volatile ("int int main(struct multiboot, *mboot_ptr)
x3"); // Test interrupts
asm volatile ("int int main(struct multiboot *mboot_ptr)
x4");
}
A public repo with all the kernel code is available at: https://gitlab.com/SierraKernel/Core/tree/master
包含所有内核代码的公共存储库位于：https: //gitlab.com/SierraKernel/Core/tree/master
回答by werber bang
May be it's a late answer , but generally the error is pointing to something not right in the file included just before int , in your case it's os.h,try to spot if there are any missing ;in this file or any file that it includes.
可能是一个迟到的答案，但通常错误指向包含在 int 之前的文件中的某些内容，在您的情况下os.h，尝试发现;此文件或它包含的任何文件中是否有任何缺失。
回答by Sebu Elias
Has an extra "," it seems
似乎有一个额外的“，”
try
尝试
##代码##回答by Sujay goshal
If you are trying to compile with c89 C dialect you will get that problem. try to c99 CFLAGS+ = -std=c99
如果您尝试使用 c89 C 方言进行编译，则会遇到该问题。尝试 c99 CFLAGS+ = -std=c99
