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[PATCH v2] linux-user: fix O_NONBLOCK usage for hppa target

From: Helge Deller
Subject: [PATCH v2] linux-user: fix O_NONBLOCK usage for hppa target
Date: Mon, 1 Feb 2021 23:05:51 +0100

Historically the parisc linux port tried to be compatible with HP-UX
userspace and as such defined the O_NONBLOCK constant to 0200004 to
emulate separate NDELAY & NONBLOCK values.

Since parisc was the only Linux platform which had two bits set, this
produced various userspace issues. Finally it was decided to drop the
(never completed) HP-UX compatibilty, which is why O_NONBLOCK was
changed upstream to only have one bit set in future with this commit:

This patch simply adjusts the value for qemu-user too.

Signed-off-by: Helge Deller <deller@gmx.de>


diff --git a/linux-user/hppa/target_fcntl.h b/linux-user/hppa/target_fcntl.h
index bd966a59b8..08e3a4fcb0 100644
--- a/linux-user/hppa/target_fcntl.h
+++ b/linux-user/hppa/target_fcntl.h
@@ -8,7 +8,7 @@

-#define TARGET_O_NONBLOCK    000200004 /* HPUX has separate NDELAY & NONBLOCK 
+#define TARGET_O_NONBLOCK    000200000
 #define TARGET_O_APPEND      000000010
 #define TARGET_O_CREAT       000000400 /* not fcntl */
 #define TARGET_O_EXCL        000002000 /* not fcntl */

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