diff mbox series

[v1,03/14] perf build: Install libsubcmd locally when building

Message ID 20221108073518.1154450-4-irogers@google.com
State New
Headers
Series Fix perf tools/lib includes |

Commit Message

Ian Rogers Nov. 8, 2022, 7:35 a.m. UTC 
  The perf build currently has a '-Itools/lib' on the CC command
line. This causes issues as the libapi, libsubcmd, libtraceevent,
libbpf headers are all found via this path, making it impossible to
override include behavior. Change the libsubcmd build mirroring the
libbpf build, so that it is installed in a directory along with its
headers. A later change will modify the include behavior.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/.gitignore    |  1 +
 tools/perf/Makefile.perf | 24 ++++++++++++++++--------
 2 files changed, 17 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index a653311d9693..626f5dd9a037 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -39,6 +39,7 @@  pmu-events/pmu-events.c
 pmu-events/jevents
 feature/
 libbpf/
+libsubcmd/
 fixdep
 libtraceevent-dynamic-list
 Documentation/doc.dep
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index a432e59afc42..af62c6b9ed7a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -244,7 +244,7 @@  else # force_fixdep
 LIB_DIR         = $(srctree)/tools/lib/api/
 TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
 LIBBPF_DIR      = $(srctree)/tools/lib/bpf/
-SUBCMD_DIR      = $(srctree)/tools/lib/subcmd/
+LIBSUBCMD_DIR   = $(srctree)/tools/lib/subcmd/
 LIBPERF_DIR     = $(srctree)/tools/lib/perf/
 DOC_DIR         = $(srctree)/tools/perf/Documentation/
 
@@ -294,7 +294,6 @@  strip-libs = $(filter-out -l%,$(1))
 ifneq ($(OUTPUT),)
   TE_PATH=$(OUTPUT)
   PLUGINS_PATH=$(OUTPUT)
-  SUBCMD_PATH=$(OUTPUT)
   LIBPERF_PATH=$(OUTPUT)
 ifneq ($(subdir),)
   API_PATH=$(OUTPUT)/../lib/api/
@@ -305,7 +304,6 @@  else
   TE_PATH=$(TRACE_EVENT_DIR)
   PLUGINS_PATH=$(TRACE_EVENT_DIR)plugins/
   API_PATH=$(LIB_DIR)
-  SUBCMD_PATH=$(SUBCMD_DIR)
   LIBPERF_PATH=$(LIBPERF_DIR)
 endif
 
@@ -332,7 +330,14 @@  LIBBPF_DESTDIR = $(LIBBPF_OUTPUT)
 LIBBPF_INCLUDE = $(LIBBPF_DESTDIR)/include
 LIBBPF = $(LIBBPF_OUTPUT)/libbpf.a
 
-LIBSUBCMD = $(SUBCMD_PATH)libsubcmd.a
+ifneq ($(OUTPUT),)
+  LIBSUBCMD_OUTPUT = $(abspath $(OUTPUT))/libsubcmd
+else
+  LIBSUBCMD_OUTPUT = $(CURDIR)/libsubcmd
+endif
+LIBSUBCMD_DESTDIR = $(LIBSUBCMD_OUTPUT)
+LIBSUBCMD_INCLUDE = $(LIBSUBCMD_DESTDIR)/include
+LIBSUBCMD = $(LIBSUBCMD_OUTPUT)/libsubcmd.a
 
 LIBPERF = $(LIBPERF_PATH)libperf.a
 export LIBPERF
@@ -849,11 +854,14 @@  $(LIBPERF)-clean:
 	$(call QUIET_CLEAN, libperf)
 	$(Q)$(MAKE) -C $(LIBPERF_DIR) O=$(OUTPUT) clean >/dev/null
 
-$(LIBSUBCMD): FORCE
-	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) $(OUTPUT)libsubcmd.a
+$(LIBSUBCMD): FORCE | $(LIBSUBCMD_OUTPUT)
+	$(Q)$(MAKE) -C $(LIBSUBCMD_DIR) O=$(LIBSUBCMD_OUTPUT) \
+		DESTDIR=$(LIBSUBCMD_DESTDIR) prefix= \
+		$@ install_headers
 
 $(LIBSUBCMD)-clean:
-	$(Q)$(MAKE) -C $(SUBCMD_DIR) O=$(OUTPUT) clean
+	$(call QUIET_CLEAN, libsubcmd)
+	$(Q)$(RM) -r -- $(LIBSUBCMD_OUTPUT)
 
 help:
 	@echo 'Perf make targets:'
@@ -1044,7 +1052,7 @@  SKELETONS += $(SKEL_OUT)/bperf_cgroup.skel.h $(SKEL_OUT)/func_latency.skel.h
 SKELETONS += $(SKEL_OUT)/off_cpu.skel.h $(SKEL_OUT)/lock_contention.skel.h
 SKELETONS += $(SKEL_OUT)/kwork_trace.skel.h
 
-$(SKEL_TMP_OUT) $(LIBBPF_OUTPUT):
+$(SKEL_TMP_OUT) $(LIBBPF_OUTPUT) $(LIBSUBCMD_OUTPUT):
 	$(Q)$(MKDIR) -p $@
 
 ifdef BUILD_BPF_SKEL