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安装 Nachos 3.4 Error cast from void* to int 失去精度

[英]Installing Nachos 3.4 Error cast from void* to int loses precision

原文 2020-10-16 16:18:36 0 1 c/ linux/ gcc/ 64-bit/ nachos

I'm trying to install Nachos 3.4, I'm using Linux 64 bit and I have a problem, the error is casting from void* to int loses precision [-fpermissive] .我正在尝试安装 Nachos 3.4，我使用的是 Linux 64 位，但我遇到了一个问题，错误是casting from void* to int loses precision [-fpermissive] 。 I have searched many times and tried many ways such: using intptr_t , long , ,static_cast<int> and so on.我已经搜索了很多次并尝试了很多方法，例如：使用intptr_t 、 long 、 ,static_cast<int>等等。 But they didn't work, I can not use C or C++ library like stdint.h , cstdint.h , iostream , ... I also intend to use a cross-compiler but I have no clue.但它们没有用，我不能使用 C 或 C++ 库，如stdint.h 、 cstdint.h 、 iostream ……我也打算使用交叉编译器，但我不知道。 Please help me, thanks very much.请帮助我，非常感谢。

1 个解决方案

Nachos is 32-bit only. Nachos 仅支持 32 位。 You are essentially trying to compile it for 64-bit, and it won't work;您实际上是在尝试为 64 位编译它，但它不起作用； it is written to work only on ILP32 data model .它只适用于ILP32 数据模型。 It also requires GCC 3.4 , as it expects literal string constants to be mutable, and later GCC versions do not support that option, -fwritable-strings , at all: the code may compile without the flag, but the binaries segfault.它还需要GCC 3.4 ，因为它期望文字字符串常量是可变的，并且更高的 GCC 版本根本不支持该选项-fwritable-strings ：代码可以在没有标志的情况下编译，但二进制文件段错误。

In essence, nachos is horribly outdated.从本质上讲，玉米片已经过时了。

Your best bet is to install Debian 3.1r8 in a virtual machine (virtualbox for example), and compile and run Nachos there.最好的办法是在虚拟机（例如 virtualbox）中安装Debian 3.1r8 ，然后在那里编译和运行 Nachos。