2009/2/4 Steven Rostedt <srostedt@xxxxxxxxxx>: > > >From ftrace.h: > > #ifdef CONFIG_FRAME_POINTER > /* TODO: need to fix this for ARM */ > # define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0)) > # define CALLER_ADDR1 ((unsigned long)__builtin_return_address(1)) > # define CALLER_ADDR2 ((unsigned long)__builtin_return_address(2)) > # define CALLER_ADDR3 ((unsigned long)__builtin_return_address(3)) > # define CALLER_ADDR4 ((unsigned long)__builtin_return_address(4)) > # define CALLER_ADDR5 ((unsigned long)__builtin_return_address(5)) > # define CALLER_ADDR6 ((unsigned long)__builtin_return_address(6)) > #else > # define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0)) > # define CALLER_ADDR1 0UL > # define CALLER_ADDR2 0UL > # define CALLER_ADDR3 0UL > # define CALLER_ADDR4 0UL > # define CALLER_ADDR5 0UL > # define CALLER_ADDR6 0UL > #endif > > Yep! > Ok. 2009/2/4 Anton Vorontsov <avorontsov@xxxxxxxxxxxxx>: > It depends on the architecture. On PowerPC we always have frame pointers, > thus __builtin_return_address(1..) will always work. On x86 it won't work > that way. > > Thanks, > > -- > Anton Vorontsov Thanks for your answers! -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
