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Unconditionally call really_init on GNU/Linux #124447

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Apr 28, 2024
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Unconditionally call really_init on GNU/Linux #124447

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10 changes: 4 additions & 6 deletions library/std/src/sys/pal/unix/args.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -98,12 +98,10 @@ mod imp {
}

#[inline(always)]
pub unsafe fn init(_argc: isize, _argv: *const *const u8) {
// On Linux-GNU, we rely on `ARGV_INIT_ARRAY` below to initialize
// `ARGC` and `ARGV`. But in Miri that does not actually happen so we
// still initialize here.
#[cfg(any(miri, not(all(target_os = "linux", target_env = "gnu"))))]
really_init(_argc, _argv);
pub unsafe fn init(argc: isize, argv: *const *const u8) {
// on GNU/Linux if we are main then we will init argv and argc twice, it "duplicates work"
// BUT edge-cases are real: only using .init_array can break most emulators, dlopen, etc.
really_init(argc, argv);
}

/// glibc passes argc, argv, and envp to functions in .init_array, as a non-standard extension.
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