From: Richard Henderson <rth@twiddle.net>
Date: Tue, 16 Sep 2014 16:47:32 +0000 (-0700)
Subject: qemu/compiler: Define QEMU_ARTIFICIAL
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=58099c80664a2feed354f2ff8014350180becb5d;p=qemu.git

qemu/compiler: Define QEMU_ARTIFICIAL

The combination of always_inline + artificial allows tiny inline
functions to be written that do not interfere with debugging.
In particular, gdb will not step into an artificial function.

The always_inline attribute was introduced in gcc 4.2,
and the artificial attribute was introduced in gcc 4.3.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---

diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 155b358964..ac7c4c441e 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -24,6 +24,12 @@
 #define QEMU_WARN_UNUSED_RESULT
 #endif
 
+#if QEMU_GNUC_PREREQ(4, 3)
+#define QEMU_ARTIFICIAL __attribute__((always_inline, artificial))
+#else
+#define QEMU_ARTIFICIAL
+#endif
+
 #if defined(_WIN32)
 # define QEMU_PACKED __attribute__((gcc_struct, packed))
 #else