From b52a3dc23521f7a21fb5ab3d2b53dad89c586ee4 Mon Sep 17 00:00:00 2001 From: Mathieu Desnoyers Date: Sun, 24 Nov 2013 03:31:44 -0500 Subject: [PATCH] Blacklist ARM gcc 4.8.0, 4.8.1, 4.8.2 It produces clobbered frame accesses, which can lead to stack corruption when racing with signal handlers nested on stack. Signed-off-by: Mathieu Desnoyers --- urcu/compiler.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/urcu/compiler.h b/urcu/compiler.h index 0032b60..074e700 100644 --- a/urcu/compiler.h +++ b/urcu/compiler.h @@ -96,4 +96,23 @@ (unsigned long) (long) (v) : \ (unsigned long) (v)) +/* + * Don't allow compiling with buggy compiler. + */ + +#ifdef __GNUC__ +# define URCU_GCC_VERSION (__GNUC__ * 10000 \ + + __GNUC_MINOR__ * 100 \ + + __GNUC_PATCHLEVEL__) + +/* + * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854 + */ +# ifdef __ARMEL__ +# if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40802 +# error Your gcc version produces clobbered frame accesses +# endif +# endif +#endif + #endif /* _URCU_COMPILER_H */ -- 2.34.1