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authorIngo Molnar <mingo@elte.hu>2009-01-12 11:32:03 +0100
committerIngo Molnar <mingo@elte.hu>2009-01-12 11:32:03 +0100
commite3ee1e123183ca9847e74b7b8e2694c9e3b817a6 (patch)
tree652a84674ed05eaa46a813de2223af0bd0168a5a /include/linux/compiler-gcc4.h
parent5762ba1873b0bb9faa631aaa02f533c2b9837f82 (diff)
parentc59765042f53a79a7a65585042ff463b69cb248c (diff)
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Merge commit 'v2.6.29-rc1' into timers/hrtimers
Conflicts: kernel/time/tick-common.c
Diffstat (limited to 'include/linux/compiler-gcc4.h')
-rw-r--r--include/linux/compiler-gcc4.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 974f5b7bb20..09992718f9e 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -2,8 +2,10 @@
#error "Please don't include <linux/compiler-gcc4.h> directly, include <linux/compiler.h> instead."
#endif
-/* These definitions are for GCC v4.x. */
-#include <linux/compiler-gcc.h>
+/* GCC 4.1.[01] miscompiles __weak */
+#if __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ <= 1
+# error Your version of gcc miscompiles the __weak directive
+#endif
#define __used __attribute__((__used__))
#define __must_check __attribute__((warn_unused_result))
@@ -16,7 +18,7 @@
*/
#define uninitialized_var(x) x = x
-#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 3)
+#if __GNUC_MINOR__ >= 3
/* Mark functions as cold. gcc will assume any path leading to a call
to them will be unlikely. This means a lot of manual unlikely()s
are unnecessary now for any paths leading to the usual suspects