linux-kernel - Re: [PATCH] perf jvmti: Link in tools/lib/ctype.o

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Message-ID: <20191014161938.GM19627@kernel.org>
Date:   Mon, 14 Oct 2019 13:19:38 -0300
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Jiri Olsa <jolsa@...nel.org>
Cc:     Thomas Richter <tmricht@...ux.ibm.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Michael Petlan <mpetlan@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH] perf jvmti: Link in tools/lib/ctype.o

Em Mon, Oct 14, 2019 at 05:48:56PM +0200, Jiri Olsa escreveu:
> The libperf-jvmti.so links already with tools/lib/string.o
> to use strlcpy. However the string.o depends on ctype.o
> so we need to link it in as well.
> 
> Fixes: 79743bc927f6 ("perf jvmti: Link against tools/lib/string.o to have weak strlcpy()")
> Link: http://lkml.kernel.org/n/tip-zitavtnkcu2guqwfgtp7n7bg@git.kernel.org
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>

I applied one already for this, contributed by Thomas.

Thanks,

- Arnaldo
> ---
>  tools/perf/jvmti/Build | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/tools/perf/jvmti/Build b/tools/perf/jvmti/Build
> index 1e148bbdf820..7de7f90bf3fb 100644
> --- a/tools/perf/jvmti/Build
> +++ b/tools/perf/jvmti/Build
> @@ -3,6 +3,7 @@ jvmti-y += jvmti_agent.o
>  
>  # For strlcpy
>  jvmti-y += libstring.o
> +jvmti-y += libctype.o
>  
>  CFLAGS_jvmti         = -fPIC -DPIC -I$(JDIR)/include -I$(JDIR)/include/linux
>  CFLAGS_REMOVE_jvmti  = -Wmissing-declarations
> @@ -15,3 +16,7 @@ CFLAGS_libstring.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PE
>  $(OUTPUT)jvmti/libstring.o: ../lib/string.c FORCE
>  	$(call rule_mkdir)
>  	$(call if_changed_dep,cc_o_c)
> +
> +$(OUTPUT)jvmti/libctype.o: ../lib/ctype.c FORCE
> +	$(call rule_mkdir)
> +	$(call if_changed_dep,cc_o_c)
> -- 
> 2.21.0

-- 

- Arnaldo