From 4328a3ff580f7842c3341f7ff2bef2cf452b0aa6 Mon Sep 17 00:00:00 2001
From: ThePedroo <pedroolimpioguerra@gmail.com>
Date: Wed, 1 Apr 2026 01:54:39 -0300
Subject: [PATCH] add support to 32-bit supercall

This commit allows 32-bit processes to take advantage of the supercall by calling the 32-bit truncate, without issues due to integer size difference.
---
 kernel/patch/common/supercall.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/kernel/patch/common/supercall.c b/kernel/patch/common/supercall.c
index 21e46509..6acfa758 100644
--- a/kernel/patch/common/supercall.c
+++ b/kernel/patch/common/supercall.c
@@ -418,7 +418,13 @@ int supercall_install()
 
     hook_err_t err = hook_syscalln(__NR_supercall, 6, before, 0, 0);
     if (err) {
-        log_boot("install supercall hook error: %d\n", err);
+        log_boot("install supercall 64-bit hook error: %d\n", err);
+        rc = err;
+        goto out;
+    }
+    err = hook_compat_syscalln(92, 6, before, 0, 0); // __NR_truncate == __NR_supercall for 32-bit
+    if (err) {
+        log_boot("install supercall 32-bit hook error: %d\n", err);
         rc = err;
         goto out;
     }