Messages in this thread | | | From | Namhyung Kim <> | Subject | Re: [PATCH] perf tool: Fix build for NO_DWARF=1 case | Date | Wed, 03 Oct 2012 22:29:48 +0900 |
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Hi all,
On Wed, 3 Oct 2012 12:29:28 +0200, Jiri Olsa wrote: > On Tue, Oct 02, 2012 at 06:45:36PM -0300, Arnaldo Carvalho de Melo wrote: >> Em Tue, Oct 02, 2012 at 03:10:49PM +0200, Jiri Olsa escreveu: >> > On Tue, Oct 02, 2012 at 07:39:23AM -0400, Ben Guthro wrote: >> > > Actually - I hadn't noticed these warnings before. >> >> > > After installing libdw-dev - the perf build completed successfully. >> > > Perhaps this should be fatal, rather than a warning? >> >> > attached patch fixies the issue for me. Adding Arnaldo to the loop. >> >> [acme@sandy linux]$ make -j8 -C tools/perf/ LIBUNWIND_DIR=/opt/libunwind O=/home/acme/git/build/perf install >> cc1: warnings being treated as errors >> arch/x86/util/dwarf-regs.c:72: error: no previous prototype for ‘get_arch_regstr’ >> make: *** [/home/acme/git/build/perf/arch/x86/util/dwarf-regs.o] Error 1 >> make: *** Waiting for unfinished jobs.... >> make: Leaving directory `/home/git/linux/tools/perf' >> [acme@sandy linux]$ >> >> - Arnaldo > > ugh.. forgot the way you build perf ;) > (also smells like 'automated make test' adept) > > Anyway, there's Makefile dependency on PERF_HAVE_DWARF_REGS which > is defined in arch/x86/Makefile. > > So, there's only one right place for '-include arch/$(ARCH)/Makefile'. > We should think of some other solution, since this seems fragile. > > I checked your make and simple make with attached patch > (only x86_64 arch, and with and without libdw installed).
I posted similar patch few days ago and it slipped into acme/perf/core:
https://lkml.org/lkml/2012/9/28/194
Can you reproduce it with above change? Anyway, my apologies, sorry for the inconvenience.
Thanks, Namhyung -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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