On Thu, May 21, 2015 at 12:34:40PM -0700, Vinson Lee wrote:
> Hi.
>
> Please backport upstream 3.12 commit
> 575bf1d04e908469d26da424b52fc1b12a1db9d8 "perf tools: Fix build with
> perl 5.18" to stable kernels 3.2, 3.4, and 3.10.
>
> commit 575bf1d04e908469d26da424b52fc1b12a1db9d8
> Author: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
> Date: Mon Jun 24 11:43:14 2013 +0300
>
> perf tools: Fix build with perl 5.18
>
> perl.h from new Perl release doesn't like -Wundef and -Wswitch-default:
>
> /usr/lib/perl5/core_perl/CORE/perl.h:548:5: error:
> "SILENT_NO_TAINT_SUPPORT" is not defined [-Werror=undef]
> #if SILENT_NO_TAINT_SUPPORT && !defined(NO_TAINT_SUPPORT)
> ^
> /usr/lib/perl5/core_perl/CORE/perl.h:556:5: error:
> "NO_TAINT_SUPPORT" is not defined [-Werror=undef]
> #if NO_TAINT_SUPPORT
> ^
> In file included from /usr/lib/perl5/core_perl/CORE/perl.h:3471:0,
> from util/scripting-engines/trace-event-perl.c:30:
> /usr/lib/perl5/core_perl/CORE/sv.h:1455:5: error:
> "NO_TAINT_SUPPORT" is not defined [-Werror=undef]
> #if NO_TAINT_SUPPORT
> ^
> In file included from /usr/lib/perl5/core_perl/CORE/perl.h:3472:0,
> from util/scripting-engines/trace-event-perl.c:30:
> /usr/lib/perl5/core_perl/CORE/regexp.h:436:5: error:
> "NO_TAINT_SUPPORT" is not defined [-Werror=undef]
> #if NO_TAINT_SUPPORT
> ^
> In file included from /usr/lib/perl5/core_perl/CORE/hv.h:592:0,
> from /usr/lib/perl5/core_perl/CORE/perl.h:3480,
> from util/scripting-engines/trace-event-perl.c:30:
> /usr/lib/perl5/core_perl/CORE/hv_func.h: In function
> ‘S_perl_hash_siphash_2_4’:
> /usr/lib/perl5/core_perl/CORE/hv_func.h:222:3: error: switch
> missing default case [-Werror=switch-default]
> switch( left )
> ^
> /usr/lib/perl5/core_perl/CORE/hv_func.h: In function
> ‘S_perl_hash_superfast’:
> /usr/lib/perl5/core_perl/CORE/hv_func.h:274:5: error: switch
> missing default case [-Werror=switch-default]
> switch (rem) { \
> ^
> /usr/lib/perl5/core_perl/CORE/hv_func.h: In function ‘S_perl_hash_murmur3’:
> /usr/lib/perl5/core_perl/CORE/hv_func.h:398:5: error: switch
> missing default case [-Werror=switch-default]
> switch(bytes_in_carry) { /* how many bytes in carry */
> ^
>
> Let's disable the warnings for code which uses perl.h.
>
> Signed-off-by: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Paul Mackerras <paulus@xxxxxxxxx>
> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> Link: http://lkml.kernel.org/r/1372063394-20126-1-git-send-email-kirill@xxxxxxxxxxxxx
> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Doesn't apply to 3.10-stable :(
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