Re: [PATCH] perf tools: Fix bfd dependency libraries detection

[David Ahern <dsahern@gmail.com>]

On 4/28/14, 9:17 AM, Jiri Olsa wrote:
> On Mon, Apr 28, 2014 at 09:01:57AM -0600, David Ahern wrote:
>> On 4/28/14, 3:22 AM, Jiri Olsa wrote:
>>> From: Jiri Olsa <jolsa@redhat.com>
>>>
>>> There's false assumption in the library detection code
>>> assuming -liberty and -lz are always present once bfd
>>> is detected. The fails on Ubuntu (14.04) as reported
>>> by Ingo.
>>>
>>> Forcing the bdf dependency libraries detection any
>>> time bfd library is detected.
>>
>> Have you tried static builds? I need to do those occasionally and I
>> always have to muck around with the Makefiles to get it to succeed
>> -- something with the -liberty and bfd checks.
>
> hm, I just tried and even without of the fix I wasn't able
> to do static build.. so far I ended up with:
>
> ---
>    $ make LDFLAGS=-static NO_LIBUNWIND=1 NO_GTK2=1 JOBS=1
>    ...
>
>    SUBDIR   /home/jolsa/kernel.org/linux-perf/tools/lib/traceevent/
>    LINK     perf
> /bin/ld: cannot find -lelf
> /home/jolsa/kernel.org/linux-perf/tools/lib/traceevent/libtraceevent.a(event-plugin.o): In function `load_plugin':
> /home/jolsa/kernel.org/linux-perf/tools/lib/traceevent/event-plugin.c:60: warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
> /bin/ld: cannot find -lelf
> /bin/ld: cannot find -ldw
> /bin/ld: cannot find -laudit
> /bin/ld: cannot find -lslang
> /bin/ld: cannot find -lperl
> libperf.a(target.o): In function `target__parse_uid':
> /home/jolsa/kernel.org/linux-perf/tools/perf/util/target.c:79: warning: Using 'getpwnam_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
> /home/jolsa/kernel.org/linux-perf/tools/perf/util/target.c:91: warning: Using 'getpwuid_r' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
> /usr/lib/gcc/x86_64-redhat-linux/4.8.2/../../../../lib64/libpthread.a(libpthread.o): In function `sem_open':
> (.text+0x67eb): warning: the use of `mktemp' is dangerous, better use `mkstemp'
> /bin/ld: cannot find -lpython2.7
> /bin/ld: cannot find -lz
> /bin/ld: cannot find -lnuma
> collect2: error: ld returned 1 exit status
> make[1]: *** [perf] Error 1
> make: *** [all] Error 2
> ---
>
> Any hints what you did to make it pass?
> Let's fix it and put test for this in tests/make suite ;-)

# rpm -qa | grep static
glibc-static-2.14.90-24.fc16.9.x86_64
audit-libs-static-2.2.1-1.fc16.x86_64
elfutils-libelf-devel-static-0.154-2.fc16.x86_64
zlib-static-1.2.5-7.fc16.x86_64

# make O=/tmp/junk LDFLAGS=-static

David