* Re: another binutils-2.8.1 bug? [not found] <199801102021.MAA28966@netcom9.netcom.com> @ 1998-01-10 16:43 ` H.J. Lu 1998-01-11 0:31 ` Paul Eggert 0 siblings, 1 reply; 2+ messages in thread From: H.J. Lu @ 1998-01-10 16:43 UTC (permalink / raw) To: Toshiyasu Morita; +Cc: gcc2, egcs > > > > Yup, it's local. > > Evidently, if you change a static function into a non-static function, > but the static prototype is left floating around, GCC converts the > function to a static automatically, which seems rather dangerous. > I don't know what ANSI C says on it. # gcc -S x.c -O x.c:4: conflicting types for `foo' x.c:1: previous declaration of `foo' ---- .file "x.c" .version "01.01" / GNU C version 2.8.0 (i586-unknown-linux-gnulibc1) compiled by GNU C version 2.8.0. / options passed: -O / options enabled: -fdefer-pop -fthread-jumps -fpeephole -ffunction-cse / -finline -fkeep-static-consts -fpcc-struct-return -fcommon -fverbose-asm / -fgnu-linker -m80387 -mhard-float -mno-soft-float -mieee-fp / -mfp-ret-in-387 -mschedule-prologue -mcpu=pentium -march=pentium gcc2_compiled.: .text .align 4 .type foo,@function foo: pushl %ebp movl %esp,%ebp movl %ebp,%esp popl %ebp ret .Lfe1: .size foo,.Lfe1-foo .ident "GCC: (GNU) 2.8.0" --- static void foo (); foo () { } ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: another binutils-2.8.1 bug? 1998-01-10 16:43 ` another binutils-2.8.1 bug? H.J. Lu @ 1998-01-11 0:31 ` Paul Eggert 0 siblings, 0 replies; 2+ messages in thread From: Paul Eggert @ 1998-01-11 0:31 UTC (permalink / raw) To: hjl; +Cc: tm, gcc2, egcs From: hjl@lucon.org (H.J. Lu) Date: Sat, 10 Jan 1998 13:45:43 -0800 (PST) > Evidently, if you change a static function into a non-static function, > but the static prototype is left floating around, GCC converts the > function to a static automatically, which seems rather dangerous. I don't know what ANSI C says on it. ANSI C requires that behavior. It might be nice if GCC warned about the situation, but I don't think it's dangerous all that often. All that happens is that the function is unexpectedly static, which normally just leads to a link error. ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~1998-01-11 0:31 UTC | newest] Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <199801102021.MAA28966@netcom9.netcom.com> 1998-01-10 16:43 ` another binutils-2.8.1 bug? H.J. Lu 1998-01-11 0:31 ` Paul Eggert
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