From 42a04216dd856c12e723e48930e85d63998e4eda Mon Sep 17 00:00:00 2001
From: Pimyn Girgis <pimyn@google.com>
Date: Thu, 27 Nov 2025 15:31:51 +0000
Subject: sys/syz-extract: add required compiler flags

Add compiler flags to syz-extract to handle wide character constants and suppress implicit function declaration warnings
in kernel headers.
---
 sys/syz-extract/linux.go | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sys')

diff --git a/sys/syz-extract/linux.go b/sys/syz-extract/linux.go
index 28354dcbb..d4de1874a 100644
--- a/sys/syz-extract/linux.go
+++ b/sys/syz-extract/linux.go
@@ -132,6 +132,10 @@ func (*linux) processFile(arch *Arch, info *compiler.ConstInfo) (map[string]uint
 	sourceDir := arch.sourceDir
 	buildDir := arch.buildDir
 	args := []string{
+		// EFI kernel headers use wide character constants.
+		"-fshort-wchar",
+		// Avoid implicit declaration errors.
+		"-Wno-implicit-function-declaration",
 		// This makes the build completely hermetic, only kernel headers are used.
 		"-nostdinc",
 		"-w", "-fmessage-length=0",
-- 
cgit mrf-deployment