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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-05 11:33:41 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-04-06 10:44:28 -0300 |
| commit | bd0419e2a5a9fd9396cb7dc69044f961f52e19f0 (patch) | |
| tree | 423dfe14e53f53206ce4e07006c417322ac8ff5f /tools/perf/config | |
| parent | d8e28654f28de74951ab1b7e59d2bebb442972aa (diff) | |
| download | linux-bd0419e2a5a9fd9396cb7dc69044f961f52e19f0.tar.bz2 | |
perf probe: Check if dwarf_getlocations() is available
If not, tell the user that:
config/Makefile:273: Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157
And return -ENOTSUPP in die_get_var_range(), failing features that
need it, like the one pointed out above.
This fixes the build on older systems, such as Ubuntu 12.04.5.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Vinson Lee <vlee@freedesktop.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-9l7luqkq4gfnx7vrklkq4obs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/config')
| -rw-r--r-- | tools/perf/config/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index f7d7f5a1cad5..6f8f6430f2bf 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -268,6 +268,12 @@ else ifneq ($(feature-dwarf), 1) msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev); NO_DWARF := 1 + else + ifneq ($(feature-dwarf_getlocations), 1) + msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157); + else + CFLAGS += -DHAVE_DWARF_GETLOCATIONS + endif # dwarf_getlocations endif # Dwarf support endif # libelf support endif # NO_LIBELF |