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perf jvmti: Link against tools/lib/string.o to have weak strlcpy()

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That is needed in systems such some S/390 distros.

  $ readelf -s /tmp/build/perf/jvmti/jvmti-in.o | grep strlcpy
	452: 0000000000002990   125 FUNC    WEAK   DEFAULT  119 strlcpy
  $

Thanks to Jiri Olsa for fixing up my initial stab at this, I forgot how
Makefiles are picky about spaces versus tabs.

Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andreas Krebbel <krebbel@linux.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sergey Melnikov <melnikov.sergey.v@gmail.com>
Link: https://lkml.kernel.org/n/tip-x8vg9sffgb2t1tzqmhkrulh7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-09-02 15:37:21 -03:00
parent 4256d43493
commit 79743bc927
1 changed files with 9 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

9
tools/perf/jvmti/Build
View file

@ -1,8 +1,17 @@
jvmti-y += libjvmti.o
jvmti-y += jvmti_agent.o
# For strlcpy
jvmti-y += libstring.o
CFLAGS_jvmti = -fPIC -DPIC -I$(JDIR)/include -I$(JDIR)/include/linux
CFLAGS_REMOVE_jvmti = -Wmissing-declarations
CFLAGS_REMOVE_jvmti += -Wstrict-prototypes
CFLAGS_REMOVE_jvmti += -Wextra
CFLAGS_REMOVE_jvmti += -Wwrite-strings
CFLAGS_libstring.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
$(OUTPUT)jvmti/libstring.o: ../lib/string.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)