From de87c856e78fa8c9a92a7d9638c287fd70d7f235 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Tue, 21 Oct 2025 05:56:46 +0200
Subject: [PATCH] std.Thread: implement freeAndExit() for alpha-linux

---
 lib/std/Thread.zig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/std/Thread.zig b/lib/std/Thread.zig
index 049ea9e8b7..02d7dc9eee 100644
--- a/lib/std/Thread.zig
+++ b/lib/std/Thread.zig
@@ -1235,6 +1235,18 @@ const LinuxThreadImpl = struct {
                     : [ptr] "r" (@intFromPtr(self.mapped.ptr)),
                       [len] "r" (self.mapped.len),
                     : .{ .memory = true }),
+                .alpha => asm volatile (
+                    \\ ldi $0, 73 # SYS_munmap
+                    \\ mov %[ptr], $16
+                    \\ mov %[len], $17
+                    \\ callsys
+                    \\ ldi $0, 1 # SYS_exit
+                    \\ ldi $16, 0
+                    \\ callsys
+                    :
+                    : [ptr] "r" (@intFromPtr(self.mapped.ptr)),
+                      [len] "r" (self.mapped.len),
+                    : .{ .memory = true }),
                 .hexagon => asm volatile (
                     \\  r6 = #215 // SYS_munmap
                     \\  r0 = %[ptr]