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authorArnaldo Carvalho de Melo <acme@redhat.com>2019-09-02 21:37:21 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-09-20 15:18:45 +0300
commit79743bc927f695e5a24f26c31cfe2d69f6ee00f7 (patch)
tree6a9bb06894396ea353812cddb1c4c1695187f729 /tools
parent4256d434935e9c85a731823be562785494ca364b (diff)
downloadlinux-79743bc927f695e5a24f26c31cfe2d69f6ee00f7.tar.xz
perf jvmti: Link against tools/lib/string.o to have weak strlcpy()
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>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/jvmti/Build9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/jvmti/Build b/tools/perf/jvmti/Build
index eaeb8cb5379b..1e148bbdf820 100644
--- a/tools/perf/jvmti/Build
+++ b/tools/perf/jvmti/Build
@@ -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)