linux-kernel - Re: [PATCH] Add --sysroot when building dlfilters on cross build environments

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Message-ID: <ba4c0d9a-6e80-41b3-24e3-5073353b298e@intel.com>
Date:   Tue, 31 Aug 2021 09:04:31 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Add --sysroot when building dlfilters on cross build
 environments

On 31/08/21 12:12 am, Arnaldo Carvalho de Melo wrote:
> Hi Adrian,
> 
> 	I had to add this cset to fix the build/link on cross build
> environments with a sysroot, like Android, EXTRA_CFLAGS is where it will
> get the needed --sysroot=/opt/android-ndk-r12b//platforms/android-24/arch-arm, please ack.
> 
> - Arnaldo
> 
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 24623599113df215..e04313c4d8409a94 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -785,10 +785,10 @@ endif
>  
>  $(OUTPUT)dlfilters/%.o: dlfilters/%.c include/perf/perf_dlfilter.h
>  	$(Q)$(MKDIR) -p $(OUTPUT)dlfilters
> -	$(QUIET_CC)$(CC) -c -Iinclude -o $@ -fpic $<
> +	$(QUIET_CC)$(CC) -c -Iinclude $(EXTRA_CFLAGS) -o $@ -fpic $<
>  
>  $(OUTPUT)dlfilters/%.so: $(OUTPUT)dlfilters/%.o
> -	$(QUIET_LINK)$(CC) -shared -o $@ $<
> +	$(QUIET_LINK)$(CC) $(EXTRA_CFLAGS) -shared -o $@ $<
>  
>  ifndef NO_JVMTI
>  LIBJVMTI_IN := $(OUTPUT)jvmti/jvmti-in.o
> 

Acked-by: Adrian Hunter <adrian.hunter@...el.com>