From 9ceb7ef5574baa490631fa205448208cdf5b5f87 Mon Sep 17 00:00:00 2001
From: xtqqczze <45661989+xtqqczze@users.noreply.github.com>
Date: Tue, 8 Sep 2026 23:06:10 +0100
Subject: [PATCH] feat(uucore): support signals feature on Haiku targets

```sh
RUSTC_BOOTSTRAP=1 cargo clippy -q -Zbuild-std \
  -p uucore --features signals --all-targets \
  --target x86_64-unknown-haiku
```
---
 src/uucore/src/lib/features.rs         |  1 +
 src/uucore/src/lib/features/signals.rs | 76 ++++++++++++++++++++++++++
 src/uucore/src/lib/lib.rs              |  1 +
 src/uucore_procs/src/lib.rs            |  4 +-
 4 files changed, 80 insertions(+), 2 deletions(-)

diff --git a/src/uucore/src/lib/features.rs b/src/uucore/src/lib/features.rs
index 16d6c74b15e..facb0895490 100644
--- a/src/uucore/src/lib/features.rs
+++ b/src/uucore/src/lib/features.rs
@@ -120,6 +120,7 @@ pub mod selinux;
         target_os = "android",
         target_os = "cygwin",
         target_os = "freebsd",
+        target_os = "haiku",
         target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
diff --git a/src/uucore/src/lib/features/signals.rs b/src/uucore/src/lib/features/signals.rs
index 47b6d7e7de9..a517c47ccc9 100644
--- a/src/uucore/src/lib/features/signals.rs
+++ b/src/uucore/src/lib/features/signals.rs
@@ -92,6 +92,82 @@ pub static ALL_SIGNALS: [&str; 32] = [
     "XCPU", "XFSZ", "VTALRM", "PROF", "WINCH", "INFO", "USR1", "USR2",
 ];
 
+/*
+
+     The following signals are defined in Haiku:
+     // https://github.com/haiku/haiku/blob/master/headers/posix/signal.h
+
+     SIGHUP           1     hangup -- tty is gone!
+     SIGINT           2     interrupt
+     SIGQUIT          3     `quit' special character typed in tty
+     SIGILL           4     illegal instruction
+     SIGCHLD          5     child process exited
+     SIGABRT          6     abort() called, dont' catch
+     SIGPIPE          7     write to a pipe w/no readers
+     SIGFPE           8     floating point exception
+     SIGKILL          9     kill a team (not catchable)
+     SIGSTOP          10    suspend a thread (not catchable)
+     SIGSEGV          11    segmentation violation (read: invalid pointer)
+     SIGCONT          12    continue execution if suspended
+     SIGTSTP          13    `stop' special character typed in tty
+     SIGALRM          14    an alarm has gone off (see alarm())
+     SIGTERM          15    termination requested
+     SIGTTIN          16    read of tty from bg process
+     SIGTTOU          17    write to tty from bg process
+     SIGUSR1          18    app defined signal 1
+     SIGUSR2          19    app defined signal 2
+     SIGWINCH         20    tty window size changed
+     SIGKILLTHR       21    be specific: kill just the thread, not team
+     SIGTRAP          22    Trace/breakpoint trap
+     SIGPOLL          23    Pollable event
+     SIGPROF          24    Profiling timer expired
+     SIGSYS           25    Bad system call
+     SIGURG           26    High bandwidth data is available at socket
+     SIGVTALRM        27    Virtual timer expired
+     SIGXCPU          28    CPU time limit exceeded
+     SIGXFSZ          29    File size limit exceeded
+     SIGBUS           30    access to undefined portion of a memory object
+     SIGRESERVED1     31    reserved for future use
+     SIGRESERVED2     32    reserved for future use
+*/
+
+#[cfg(target_os = "haiku")]
+pub static ALL_SIGNALS: [&str; 33] = [
+    "EXIT",
+    "HUP",
+    "INT",
+    "QUIT",
+    "ILL",
+    "CHLD",
+    "ABRT",
+    "PIPE",
+    "FPE",
+    "KILL",
+    "STOP",
+    "SEGV",
+    "CONT",
+    "TSTP",
+    "ALRM",
+    "TERM",
+    "TTIN",
+    "TTOU",
+    "USR1",
+    "USR2",
+    "WINCH",
+    "KILLTHR",
+    "TRAP",
+    "POLL",
+    "PROF",
+    "SYS",
+    "URG",
+    "VTALRM",
+    "XCPU",
+    "XFSZ",
+    "BUS",
+    "RESERVED1",
+    "RESERVED2",
+];
+
 /*
 
      The following signals are defined in GNU/Hurd:
diff --git a/src/uucore/src/lib/lib.rs b/src/uucore/src/lib/lib.rs
index 171afe80d1a..033b1c5573a 100644
--- a/src/uucore/src/lib/lib.rs
+++ b/src/uucore/src/lib/lib.rs
@@ -120,6 +120,7 @@ pub use crate::features::safe_traversal;
         target_os = "android",
         target_os = "cygwin",
         target_os = "freebsd",
+        target_os = "haiku",
         target_os = "hurd",
         target_os = "illumos",
         target_os = "linux",
diff --git a/src/uucore_procs/src/lib.rs b/src/uucore_procs/src/lib.rs
index afb2dd54622..e74bbd3c888 100644
--- a/src/uucore_procs/src/lib.rs
+++ b/src/uucore_procs/src/lib.rs
@@ -33,7 +33,7 @@ pub fn main(args: TokenStream, stream: TokenStream) -> TokenStream {
         // Initialize SIGPIPE state capture at process startup (Unix only).
         // This must be at module level to set up the .init_array static that runs
         // before main() to capture whether SIGPIPE was ignored by the parent process.
-        #[cfg(all(#signals, unix, not(any(target_os = "fuchsia", target_os = "haiku"))))]
+        #[cfg(all(#signals, unix, not(target_os = "fuchsia")))]
         uucore::init_startup_state_capture!();
 
         pub fn uumain(args: impl uucore::Args) -> i32 {
@@ -43,7 +43,7 @@ pub fn main(args: TokenStream, stream: TokenStream) -> TokenStream {
             // The Rust runtime ignores SIGPIPE, but we need to respect the parent's
             // signal disposition for proper pipeline behavior (GNU compatibility).
             // needed even for true --version
-            #[cfg(all(unix, not(any(target_os = "fuchsia", target_os = "haiku"))))]
+            #[cfg(all(unix, not(target_os = "fuchsia")))]
             if !uucore::signals::sigpipe_was_ignored() {
                 let _ = uucore::signals::enable_pipe_errors();
             }