add -fno-PIC flag in Makefile. #22
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Thank you! |
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Some of my classmates do have this problem... |
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I have encoutered this problem. I tested gcc6.4.1 and gcc7+ with -Q -v flags, and found that -fPIC is a default option for gcc7+, while gcc6- DOES NOT set it to default. |
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ping |
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禁用位置无关代码也有助于减小代码体积。如果不开启的话，在较新版本的 gcc 中，bootloader 的体积很容易就会超过 512 字节导致无法生成扇区 |
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Conclusions:
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@Csomnia Thank you! I merged your PR. |
chyyuu
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目前问题：内核线程栈上切页表会崩；用户线程 2M 堆栈时中间有一个页无法访问
chyyuu
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hello_world 如果最后是 loop{} 运行一段时间后会玄学挂掉
chyyuu
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Resolve "lab6" Closes #22 See merge request os20-rcore-tutorial/rcore-tutorial!18
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When I compile with newer version gcc, I find that the code is position-indepent, it makes kernel can't work properly in qemu. To solve this, add -fno-PIC in Makefile force gcc to generate absolute code.