From 14c79203c4f783002d8334fb7471b95b271fbc70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Sun, 1 Dec 2024 02:23:10 +0100
Subject: [PATCH 1/2] std.os.linux: Fix fadvise64 syscall selection for
 n32/x32.

---
 lib/std/os/linux.zig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/std/os/linux.zig b/lib/std/os/linux.zig
index 7bd727e79f..e9a84d8062 100644
--- a/lib/std/os/linux.zig
+++ b/lib/std/os/linux.zig
@@ -2451,7 +2451,10 @@ pub fn fadvise(fd: fd_t, offset: i64, len: i64, advice: usize) usize {
         const length_halves = splitValue64(len);
 
         return syscall6(
-            .fadvise64_64,
+            switch (builtin.abi) {
+                .gnuabin32, .gnux32, .muslabin32, .muslx32 => .fadvise64,
+                else => .fadvise64_64,
+            },
             @as(usize, @bitCast(@as(isize, fd))),
             offset_halves[0],
             offset_halves[1],

From 17315109336a8ae048f98170f557b9abb79568db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alex=20R=C3=B8nne=20Petersen?= <alex@alexrp.com>
Date: Sun, 1 Dec 2024 02:15:51 +0100
Subject: [PATCH 2/2] test: Add x86_64-linux-(gnux32,muslx32) to module tests.

---
 test/tests.zig | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/test/tests.zig b/test/tests.zig
index ac23bac754..e123dc1e2b 100644
--- a/test/tests.zig
+++ b/test/tests.zig
@@ -217,6 +217,14 @@ const test_targets = blk: {
             },
             .link_libc = true,
         },
+        .{
+            .target = .{
+                .cpu_arch = .x86_64,
+                .os_tag = .linux,
+                .abi = .gnux32,
+            },
+            .link_libc = true,
+        },
         .{
             .target = .{
                 .cpu_arch = .x86_64,
@@ -225,6 +233,14 @@ const test_targets = blk: {
             },
             .link_libc = true,
         },
+        .{
+            .target = .{
+                .cpu_arch = .x86_64,
+                .os_tag = .linux,
+                .abi = .muslx32,
+            },
+            .link_libc = true,
+        },
         .{
             .target = .{
                 .cpu_arch = .x86_64,