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Re: Tcsh - Gentoo


On 30 March 2015 at 20:45, David Kredba wrote:
> Hello.
> Could you plese help me?
> What information I have to provide as good enough for gcc-5 possible
> bug report if Gentoo tcsh-6.18.01-r2 is maybe miscompiled with "-g O2
> -march=core2 -mtune=core2"?
>
> This way (LTO or non-LTO) built tcsh always utilizes 100% CPU:
[...]
> Is it binary dumps diff?

No, find which function misbehaves (use GDB to look at a stack trace
while it is using 100% CPU).

Find which source file contains that function. Compile that file as
normal (non-LTO) adding -save-temps to the gcc command.

Create a bug at https://gcc/gnu.org/bugzilla/ and attach the .i file
created by the gcc -save-temps command.

Also follow all the other instructions at https://gcc.gnu.org/bugs/


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