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From 5c73e53997df800a742f9cd7355f3045861984bb Mon Sep 17 00:00:00 2001
From: Frederic Konrad <fkonrad@amd.com>
Date: Thu, 18 Jan 2024 10:43:44 +0000
Subject: [PATCH 2/2] linux-user/*: workaround for missing MAP_SHARED_VALIDATE
QEMU v8.1.0 recently requires MAP_SHARED_VALIDATE flags implementation for mmap.
This is missing from the Ubuntu 18.04 compiler but looks like to be in the
kernel source.
Signed-off-by: Frederic Konrad <fkonrad@amd.com>
Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Upstream-Status: Inappropriate [OE specific]
The upstream only supports the last two major releases of an OS. The ones
they have declared all have kernel 4.17 or newer.
See:
https://xilinx.slack.com/archives/D04G2647CTV/p1705074697942019
https://www.qemu.org/docs/master/about/build-platforms.html
The project aims to support the most recent major version at all times for up
to five years after its initial release. Support for the previous major
version will be dropped 2 years after the new major version is released or
when the vendor itself drops support, whichever comes first.
Signed-off-by: Mark Hatle <mark.hatle@amd.com>
---
linux-user/mmap-fixed.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/linux-user/mmap-fixed.h b/linux-user/mmap-fixed.h
index ef6eef5114..ec86586c1f 100644
--- a/linux-user/mmap-fixed.h
+++ b/linux-user/mmap-fixed.h
@@ -26,6 +26,10 @@
#ifndef MMAP_FIXED_H
#define MMAP_FIXED_H
+#ifndef MAP_SHARED_VALIDATE
+#define MAP_SHARED_VALIDATE 0x03
+#endif
+
#ifndef MAP_FIXED_NOREPLACE
#define MAP_FIXED_NOREPLACE 0x100000
--
2.34.1
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