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[Qemu-devel] [PATCH 1/2] qemu/compiler: Define QEMU_ARTIFICIAL
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From: |
Richard Henderson |
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Subject: |
[Qemu-devel] [PATCH 1/2] qemu/compiler: Define QEMU_ARTIFICIAL |
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Date: |
Tue, 16 Sep 2014 10:46:46 -0700 |
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 <address@hidden>
---
include/qemu/compiler.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 155b358..ac7c4c4 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
--
1.9.3