From 23bf86af9a2ba03cda2b5b913bafb76ce8ce14b8 Mon Sep 17 00:00:00 2001
From: Anton Lindqvist <anton@basename.se>
Date: Sun, 23 Oct 2022 08:10:02 +0200
Subject: executor: cope with mimmutable(2) on OpenBSD

Pages residing in the BSS section are by now flagged as immutable on OpenBSD.
Meaning that their corresponding permissions cannot change. The input_data
therefore needs to be explicitly marked as mutable. Should hopefully bring
syzbot on OpenBSD back.
---
 executor/executor.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/executor/executor.cc b/executor/executor.cc
index 61e669f39..47ecdadeb 100644
--- a/executor/executor.cc
+++ b/executor/executor.cc
@@ -37,6 +37,12 @@
 #define __thread __declspec(thread)
 #endif
 
+#if GOOS_openbsd
+#define MUTABLE __attribute__((section(".openbsd.mutable")))
+#else
+#define MUTABLE
+#endif
+
 #ifndef GIT_REVISION
 #define GIT_REVISION "unknown"
 #endif
@@ -220,8 +226,7 @@ static int running;
 uint32 completed;
 bool is_kernel_64_bit = true;
 
-ALIGNED(INPUT_DATA_ALIGNMENT)
-static char input_data[kMaxInput];
+MUTABLE ALIGNED(INPUT_DATA_ALIGNMENT) static char input_data[kMaxInput];
 
 // Checksum kinds.
 static const uint64 arg_csum_inet = 0;
-- 
cgit mrf-deployment