Re: linux-next 20180320 compile failure - tools/lib/str_error_r.c

[Arnaldo Carvalho de Melo]

Em Tue, Mar 20, 2018 at 12:43:32PM -0400, valdis.kletnieks@xxxxxx escreveu:
> Not sure who to blame here, or what changed in gcc between 0.16 and 0.19,
> or what the proper fix is here....
> 
> next-20180307 with "gcc version 8.0.1 20180222 (Red Hat 8.0.1-0.16)" built and runs fine.
> 
> next-20180320 with "gcc (GCC) 8.0.1 20180317 (Red Hat 8.0.1-0.19)"  dies a horrid death early
> during the compile:
> 
>   CC       /usr/src/linux-next/tools/objtool/str_error_r.o
> ../lib/str_error_r.c: In function 'str_error_r':
> ../lib/str_error_r.c:25:3: error: passing argument 1 to restrict-qualified parameter aliases with argument 5 [-Werror=restrict]
>    snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum, buf, buflen, err);
>    ^~~~~~~~
> cc1: all warnings being treated as errors
> mv: cannot stat '/usr/src/linux-next/tools/objtool/.str_error_r.o.tmp': No such file or directory
> make[3]: *** [Build:22: /usr/src/linux-next/tools/objtool/str_error_r.o] Error 1
> make[2]: *** [Makefile:46: /usr/src/linux-next/tools/objtool/objtool-in.o] Error 2
> make[1]: *** [Makefile:63: objtool] Error 2
> make: *** [Makefile:1681: tools/objtool] Error 2
> 

https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=854e55ad289e

- Arnaldo