[libc-commits] [PATCH] D146161: [libc] Enable __llvm_libc_syscall and fork

[Mikhail Ramalho via Phabricator via libc-commits]

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This patch enables the remaining calls from unistd.

The test cases had to be updated to:

1. Use SYS_symlinkat if SYS_symlink is not available
2. Use SYS_readlinkat if SYS_readlink is not available
3. Use SYS_unlinkat if SYS_unlink is not available
4. Use SYS_openat if SYS_open is not available

We also abort compilation if neither of the syscalls mentioned above are
available.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146161

Files:
  libc/config/linux/riscv64/entrypoints.txt
  libc/src/unistd/linux/fork.cpp
  libc/test/src/unistd/syscall_test.cpp

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