From 88a8c9e79a461d6d00c48e3e9f9d0ecb8ed67647 Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <contact@guillaume-gomez.fr>
Date: Tue, 3 Nov 2026 11:33:55 +0100
Subject: [PATCH] Add `kcmp_type` enum (from `linux/kcmp.h` header)

---
 libc-test/build/main.rs            |  2 ++
 libc-test/semver/android.txt       |  9 +++++++++
 libc-test/semver/linux.txt         |  9 +++++++++
 src/unix/linux_like/android/mod.rs | 11 +++++++++++
 src/unix/linux_like/linux/mod.rs   | 11 +++++++++++
 5 files changed, 42 insertions(+)

diff --git a/libc-test/build/main.rs b/libc-test/build/main.rs
index 718854156ab7..8825546e1daf 100755
--- a/libc-test/build/main.rs
+++ b/libc-test/build/main.rs
@@ -2102,6 +2102,7 @@ fn test_android(t: &Target) {
         "linux/if_link.h",
         "linux/rtnetlink.h",
         "linux/if_tun.h",
+        "linux/kcmp.h",
         "linux/kexec.h",
         "linux/magic.h",
         "linux/membarrier.h",
@@ -3995,6 +3996,7 @@ fn test_linux(t: &Target) {
         "libgen.h",
         "limits.h",
         "link.h",
+        (!l4re, "linux/kcmp.h"),
         (!l4re, "linux/sysctl.h"),
         "locale.h",
         "malloc.h",
diff --git a/libc-test/semver/android.txt b/libc-test/semver/android.txt
index 3269619dc88a..de1e9761eced 100644
--- a/libc-test/semver/android.txt
+++ b/libc-test/semver/android.txt
@@ -1086,6 +1086,15 @@ IXANY
 IXOFF
 IXON
 JFFS2_SUPER_MAGIC
+KCMP_EPOLL_TFD
+KCMP_FILE
+KCMP_FILES
+KCMP_FS
+KCMP_IO
+KCMP_SIGHAND
+KCMP_SYSVSEM
+KCMP_TYPES
+KCMP_VM
 KEXEC_ARCH_MASK
 KEXEC_FILE_NO_INITRAMFS
 KEXEC_FILE_ON_CRASH
diff --git a/libc-test/semver/linux.txt b/libc-test/semver/linux.txt
index 995670e0b04c..32f13c674fa1 100644
--- a/libc-test/semver/linux.txt
+++ b/libc-test/semver/linux.txt
@@ -1655,6 +1655,15 @@ J1939_PGN_ADDRESS_COMMANDED
 J1939_PGN_MAX
 J1939_PGN_PDU1_MAX
 J1939_PGN_REQUEST
+KCMP_EPOLL_TFD
+KCMP_FILE
+KCMP_FILES
+KCMP_FS
+KCMP_IO
+KCMP_SIGHAND
+KCMP_SYSVSEM
+KCMP_TYPES
+KCMP_VM
 KERNEL_VERSION
 KEXEC_ARCH_MASK
 KEXEC_FILE_NO_INITRAMFS
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
index b8432d288c28..f87e381da5bb 100644
--- a/src/unix/linux_like/android/mod.rs
+++ b/src/unix/linux_like/android/mod.rs
@@ -3433,6 +3433,17 @@ pub const _PATH_DEFPATH: *const c_char = cstr!(
 );
 pub const _PATH_BSHELL: *const c_char = cstr!("/system/bin/sh");
 
+// linux/kcmp.h
+pub const KCMP_FILE: c_int = 0;
+pub const KCMP_VM: c_int = 1;
+pub const KCMP_FILES: c_int = 2;
+pub const KCMP_FS: c_int = 3;
+pub const KCMP_SIGHAND: c_int = 4;
+pub const KCMP_IO: c_int = 5;
+pub const KCMP_SYSVSEM: c_int = 6;
+pub const KCMP_EPOLL_TFD: c_int = 7;
+pub const KCMP_TYPES: c_int = 8;
+
 // Most `*_SUPER_MAGIC` constants are defined at the `linux_like` level; the
 // following are only available on newer Linux versions than the versions
 // currently used in CI in some configurations, so we define them here.
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
index a64bcf9dfa63..f6ea5dc5158b 100644
--- a/src/unix/linux_like/linux/mod.rs
+++ b/src/unix/linux_like/linux/mod.rs
@@ -3351,6 +3351,17 @@ pub const EPIOCGPARAMS: Ioctl = _IOR::<epoll_params>(EPOLL_IOC_TYPE, 0x02);
 pub const SI_DETHREAD: c_int = -7;
 pub const TRAP_PERF: c_int = 6;
 
+// linux/kcmp.h
+pub const KCMP_FILE: c_int = 0;
+pub const KCMP_VM: c_int = 1;
+pub const KCMP_FILES: c_int = 2;
+pub const KCMP_FS: c_int = 3;
+pub const KCMP_SIGHAND: c_int = 4;
+pub const KCMP_IO: c_int = 5;
+pub const KCMP_SYSVSEM: c_int = 6;
+pub const KCMP_EPOLL_TFD: c_int = 7;
+pub const KCMP_TYPES: c_int = 8;
+
 f! {
     pub unsafe fn SO_EE_OFFENDER(ee: *const crate::sock_extended_err) -> *mut crate::sockaddr {
         ee.offset(1) as *mut crate::sockaddr