From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Richter Subject: [PATCH 1/3] perf jvmti: Link against tools/lib/string.h to have weak strlcpy() Date: Mon, 9 Sep 2019 13:41:14 +0200 Message-ID: <20190909114116.50469-2-tmricht@linux.ibm.com> References: <20190909114116.50469-1-tmricht@linux.ibm.com> Return-path: In-Reply-To: <20190909114116.50469-1-tmricht@linux.ibm.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org Cc: brueckner@linux.ibm.com, gor@linux.ibm.com, heiko.carstens@de.ibm.com, Thomas Richter List-Id: linux-perf-users.vger.kernel.org That is needed in systems such some S/390 distros. [root@m35lp76 perf]# readelf -s jvmti/jvmti-in.o | fgrep strlcpy 408: 0000000000002bc8 216 FUNC WEAK DEFAULT 116 strlcpy [root@m35lp76 perf]# Suggested-by: Arnaldo Carvalho de Melo Signed-off-by: Thomas Richter --- tools/perf/jvmti/Build | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/perf/jvmti/Build b/tools/perf/jvmti/Build index eaeb8cb5379b..202cadaaf097 100644 --- a/tools/perf/jvmti/Build +++ b/tools/perf/jvmti/Build @@ -1,8 +1,21 @@ jvmti-y += libjvmti.o jvmti-y += jvmti_agent.o +# For strlcpy +jvmti-y += libstring.o libctype.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) + $(call if_changed_dep,cc_o_c) + +$(OUTPUT)jvmti/libctype.o: ../lib/ctype.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) -- 2.21.0