At Mon, 28 Jul 2003 00:30:35 +0000 (UTC), kuriyama wrote: > Is this caused by -oS option?
Grrr, of course this should be s/-oS/-Os/. These warnings are caused from DROP_GIANT() macro. By tracking this down, actual source is __PCPU_GET() macro (line: 115) in sys/i386/include/pcpu.h. __result = *(__pcpu_type(name) *)&__i; To test this with simplified code: ----- % cat test.c struct T { int a; }; void test() { struct T* c; int __i = 0; c = *(struct T* *)&__i; } % cc -c -Os -Wall test.c test.c: In function `test': test.c:11: warning: dereferencing type-punned pointer will break strict-aliasing rules ----- __PCPU_GET() macro seems to be harmless if -Os is not used or __pcpu_type() returns actual type rather than pointer. What should we do? -- Jun Kuriyama <[EMAIL PROTECTED]> // IMG SRC, Inc. <[EMAIL PROTECTED]> // FreeBSD Project _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"