next-20151007 perf build error "tools/include/linux/compiler.h:66: error: dereferencing pointer ‘res.41’ does break strict-aliasing rules"
From: Vinson Lee <hidden>
Date: 2015-10-07 18:28:28
Hi. I hit this perf build error with next-20151007 with GCC 4.4. CC util/annotate.o cc1: warnings being treated as errors util/annotate.c: In function ‘disasm__purge’: linux-next/tools/include/linux/compiler.h:66: error: dereferencing pointer ‘res.41’ does break strict-aliasing rules linux-next/tools/include/linux/compiler.h:66: note: initialized from here util/annotate.c: In function ‘symbol__annotate’: linux-next/tools/include/linux/compiler.h:66: error: dereferencing pointer ‘res.41’ does break strict-aliasing rules linux-next/tools/include/linux/compiler.h:66: note: initialized from here linux-next/tools/include/linux/compiler.h:52: error: dereferencing pointer ‘res.32’ does break strict-aliasing rules linux-next/tools/include/linux/compiler.h:52: note: initialized from here Cheers, Vinson