Em Tue, Oct 08, 2019 at 11:38:41AM +0200, Thomas Richter escreveu:
> The build of file libperf-jvmti.so succeeds but the resulting
> object fails to load:
>
> # ~/linux/tools/perf/perf record -k mono -- java \
> -XX:+PreserveFramePointer \
> -agentpath:/root/linux/tools/perf/libperf-jvmti.so \
> hog 100000 123450
> Error occurred during initialization of VM
> Could not find agent library /root/linux/tools/perf/libperf-jvmti.so
> in absolute path, with error:
> /root/linux/tools/perf/libperf-jvmti.so: undefined symbol: _ctype
>
> Add the missing _ctype symbol into the build script.
>
> Fixes: c5d048240e49 ("perf jvmti: Link against tools/lib/string.h to have
> weak strlcpy()")
Thanks, applied.
- Arnaldo
> Signed-off-by: Thomas Richter <[email protected]>
> ---
> tools/perf/jvmti/Build | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/tools/perf/jvmti/Build b/tools/perf/jvmti/Build
> index 1e148bbdf820..202cadaaf097 100644
> --- a/tools/perf/jvmti/Build
> +++ b/tools/perf/jvmti/Build
> @@ -2,7 +2,7 @@ jvmti-y += libjvmti.o
> jvmti-y += jvmti_agent.o
>
> # For strlcpy
> -jvmti-y += libstring.o
> +jvmti-y += libstring.o libctype.o
>
> CFLAGS_jvmti = -fPIC -DPIC -I$(JDIR)/include -I$(JDIR)/include/linux
> CFLAGS_REMOVE_jvmti = -Wmissing-declarations
> @@ -15,3 +15,7 @@ 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
