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authorIan Rogers <irogers@google.com>2021-09-11 01:57:56 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-09-11 22:06:52 +0300
commit0d1c50ac488ebdaeeaea8ed5069f8d435fd485ed (patch)
treee02f2af52ce9f56de19284cc35fc6442370d5466 /tools/perf
parent4a86d41404005a3c7e7b6065e8169ac6202887a9 (diff)
downloadlinux-0d1c50ac488ebdaeeaea8ed5069f8d435fd485ed.tar.xz
perf tools: Add an option to build without libbfd
Some distributions, like debian, don't link perf with libbfd. Add a build flag to make this configuration buildable and testable. This was inspired by: https://lore.kernel.org/linux-perf-users/20210910102307.2055484-1-tonyg@leastfixedpoint.com/T/#u Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: tony garnock-jones <tonyg@leastfixedpoint.com> Link: http://lore.kernel.org/lkml/20210910225756.729087-1-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/Makefile.config47
1 files changed, 25 insertions, 22 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index b66cf128cbc7..446180401e26 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -827,33 +827,36 @@ else
endif
endif
-ifeq ($(feature-libbfd), 1)
- EXTLIBS += -lbfd -lopcodes
-else
- # we are on a system that requires -liberty and (maybe) -lz
- # to link against -lbfd; test each case individually here
-
- # call all detections now so we get correct
- # status in VF output
- $(call feature_check,libbfd-liberty)
- $(call feature_check,libbfd-liberty-z)
- ifeq ($(feature-libbfd-liberty), 1)
- EXTLIBS += -lbfd -lopcodes -liberty
- FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
+ifndef NO_LIBBFD
+ ifeq ($(feature-libbfd), 1)
+ EXTLIBS += -lbfd -lopcodes
else
- ifeq ($(feature-libbfd-liberty-z), 1)
- EXTLIBS += -lbfd -lopcodes -liberty -lz
- FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
+ # we are on a system that requires -liberty and (maybe) -lz
+ # to link against -lbfd; test each case individually here
+
+ # call all detections now so we get correct
+ # status in VF output
+ $(call feature_check,libbfd-liberty)
+ $(call feature_check,libbfd-liberty-z)
+
+ ifeq ($(feature-libbfd-liberty), 1)
+ EXTLIBS += -lbfd -lopcodes -liberty
+ FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
+ else
+ ifeq ($(feature-libbfd-liberty-z), 1)
+ EXTLIBS += -lbfd -lopcodes -liberty -lz
+ FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
+ endif
endif
+ $(call feature_check,disassembler-four-args)
endif
- $(call feature_check,disassembler-four-args)
-endif
-ifeq ($(feature-libbfd-buildid), 1)
- CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
-else
- msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
+ ifeq ($(feature-libbfd-buildid), 1)
+ CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
+ else
+ msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
+ endif
endif
ifdef NO_DEMANGLE