Implement ARM64 Support #7
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* `__NR_getpgrp` & `__NR_epoll_create` don't exist on ARM64. However, `epoll_create1(0)` & `getpgid(0)` can be used as a substitute. * While `__NR_getpgrp` & `__NR_epoll_create` exist on x86, I want to try and keep the code consistent between ARM64 and x86.
…ror If Code Is Missing For Arch.
Unlike i386/x86_64, ARM64 doesn't contain a `stat64` struct. On top of that, ARM64's `stat` is actually the same as `stat64`. As a result, some of the stat code will need to be converted to handle this scenario. For more details, I recommend looking at the `[xnu]/bsd/sys/stat.h` file.
Unless Linux has a way for us to update the TPIDRRO_EL0, we will have to use TPIDR_EL0 instead...
The syscall number is suppose to be set at x8, not x7.
The way variadic functions are handled on macOS differs between x86/x86-64 and ARM64. See the following for more details: https://developer.apple.com/documentation/apple-silicon/addressing-architectural-differences-in-your-macos-code#Dont-Redeclare-a-Function-to-Have-Variable-Parameters
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…TPIDR_EL0 Linux relies on TPIDR_EL0, so we can't use that.
* If not already done, add code to save and restore `fp` & `lr`. * Update code that wasn't changed to call `__darling_handle_svc` * Rework changes made to the macros.
Based off of how we handle the carry flag for x86.
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Also throw error if `linux_stat` is missing for arch.
…ns Needed To Get Syscall Function.
If you look at <bits/fcntl-linux.h>, you'll notice that some constants will only be defined if they have not already been defined. This is important for some architextures (such as ARM64, which have custom implementations for some of the constants)
Forgot to fix this code as well when fixing the TPIDR_EL0 issue
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Fixes ___pipe implementation
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