surma
57a47b069e
T8: sausage:process WIT (spawn, wait, kill), one store per process over the shared root, /proc/processes, /run, pipeline and cancellation groups, Exec. brush and 78 uutils commands; the shared cwd-init object sets the cwd from PWD and keeps numeric exit codes. The corpus matches native bash. T9: V8 (deno_core) runs pi-durable, pi-ai and chord; SQLite storage in <dir>/host/harness.sqlite (WAL, synchronous=FULL); file tools on the VFS, bash through Exec; resumes after SIGKILL.
47 lines
1.2 KiB
Rust
47 lines
1.2 KiB
Rust
//! Initialize wasi-libc's cwd for every program that the world toolchain builds.
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#![no_std]
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#[used]
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#[unsafe(link_section = "component-type:sausage-exit")]
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static EXIT_INTERFACE: [u8; include_bytes!("exit-meta.bin").len()] =
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*include_bytes!("exit-meta.bin");
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unsafe extern "C" {
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fn getenv(name: *const u8) -> *const u8;
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fn chdir(path: *const u8) -> i32;
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}
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#[link(wasm_import_module = "wasi:cli/exit@0.2.12")]
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unsafe extern "C" {
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#[link_name = "exit-with-code"]
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fn exit_with_code(code: u32);
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}
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/// Replace wasi-libc's success/failure conversion with the standard numeric exit interface.
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#[unsafe(no_mangle)]
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unsafe extern "C" fn _Exit(code: i32) -> ! {
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unsafe {
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exit_with_code((code as u32) & 255);
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}
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core::arch::wasm32::unreachable()
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}
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#[unsafe(no_mangle)]
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unsafe extern "C" fn _exit(code: i32) -> ! {
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unsafe { _Exit(code) }
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}
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extern "C" fn initialize() {
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// PWD is supplied by the process table, never inferred from a host directory.
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unsafe {
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let cwd = getenv(c"PWD".as_ptr().cast());
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if !cwd.is_null() && chdir(cwd) != 0 {
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_exit(1);
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}
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}
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}
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#[used]
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#[unsafe(link_section = ".init_array")]
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static INITIALIZE: extern "C" fn() = initialize;
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