Commit-ID: cb281fea4b0a326d2a2104f8ffae2b6895c561fd Gitweb: http://git.kernel.org/tip/cb281fea4b0a326d2a2104f8ffae2b6895c561fd Author: David Carrillo-Cisneros <davidcc@xxxxxxxxxx> AuthorDate: Tue, 18 Jul 2017 18:18:37 -0700 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Tue, 25 Jul 2017 11:23:51 -0300 perf tools: Add EXCLUDE_EXTLIBS and EXTRA_PERFLIBS to makefile The goal is to allow users to override linking of libraries that were automatically added to PERFLIBS. EXCLUDE_EXTLIBS contains linker flags to be removed from LIBS while EXTRA_PERFLIBS contains linker flags to be added. My use case is to force certain library to be build statically, e.g. for libelf: EXCLUDE_EXTLIBS=-lelf EXTRA_PERFLIBS=path/libelf.a Signed-off-by: David Carrillo-Cisneros <davidcc@xxxxxxxxxx> Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx> Cc: Elena Reshetova <elena.reshetova@xxxxxxxxx> Cc: Kees Kook <keescook@xxxxxxxxxxxx> Cc: Paul Turner <pjt@xxxxxxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Sudeep Holla <sudeep.holla@xxxxxxx> Cc: Wang Nan <wangnan0@xxxxxxxxxx> Link: http://lkml.kernel.org/r/20170719011839.99399-3-davidcc@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- tools/perf/Makefile.perf | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 5008f51..100a6c1 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -33,6 +33,11 @@ include ../scripts/utilities.mak # # Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds. # +# Define EXCLUDE_EXTLIBS=-lmylib to exclude libmylib from the auto-generated +# EXTLIBS. +# +# Define EXTRA_PERFLIBS to pass extra libraries to PERFLIBS. +# # Define NO_DWARF if you do not want debug-info analysis feature at all. # # Define WERROR=0 to disable treating any warnings as errors. @@ -352,7 +357,8 @@ ifdef ASCIIDOC8 export ASCIIDOC8 endif -LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group +EXTLIBS := $(call filter-out,$(EXCLUDE_EXTLIBS),$(EXTLIBS)) +LIBS = -Wl,--whole-archive $(PERFLIBS) $(EXTRA_PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group ifeq ($(USE_CLANG), 1) CLANGLIBS_LIST = AST Basic CodeGen Driver Frontend Lex Tooling Edit Sema Analysis Parse Serialization -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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