perf tools: New build framework

new file mode 100644
index 000000000000..6a990b018e6d
@@ -0,0 +1,75 @@
+###
+# build: Generic definitions
+
+###
+# Convenient variables
+comma   := ,
+squote  := '
+
+###
+# Name of target with a '.' as filename prefix. foo/bar.o => foo/.bar.o
+dot-target = $(dir $@).$(notdir $@)
+
+###
+# filename of target with directory and extension stripped
+basetarget = $(basename $(notdir $@))
+
+###
+# The temporary file to save gcc -MD generated dependencies must not
+# contain a comma
+depfile = $(subst $(comma),_,$(dot-target).d)
+
+###
+# Check if both arguments has same arguments. Result is empty string if equal.
+arg-check = $(strip $(filter-out $(cmd_$(1)), $(cmd_$@)) \
+                    $(filter-out $(cmd_$@),   $(cmd_$(1))) )
+
+###
+# Escape single quote for use in echo statements
+escsq = $(subst $(squote),'\$(squote)',$1)
+
+# Echo command
+# Short version is used, if $(quiet) equals `quiet_', otherwise full one.
+echo-cmd = $(if $($(quiet)cmd_$(1)),\
+           echo '  $(call escsq,$($(quiet)cmd_$(1)))';)
+
+###
+# Replace >$< with >$$< to preserve $ when reloading the .cmd file
+# (needed for make)
+# Replace >#< with >\#< to avoid starting a comment in the .cmd file
+# (needed for make)
+# Replace >'< with >'\''< to be able to enclose the whole string in '...'
+# (needed for the shell)
+make-cmd = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1)))))
+
+###
+# Find any prerequisites that is newer than target or that does not exist.
+# PHONY targets skipped in both cases.
+any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
+
+###
+# if_changed_dep  - execute command if any prerequisite is newer than
+#                   target, or command line has changed and update
+#                   dependencies in the cmd file
+if_changed_dep = $(if $(strip $(any-prereq) $(arg-check)),         \
+	@set -e;                                                   \
+	$(echo-cmd) $(cmd_$(1));                                   \
+	cat $(depfile) > $(dot-target).cmd;                        \
+	printf '%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd)
+
+###
+# if_changed      - execute command if any prerequisite is newer than
+#                   target, or command line has changed
+if_changed = $(if $(strip $(any-prereq) $(arg-check)),             \
+	@set -e;                                                   \
+	$(echo-cmd) $(cmd_$(1));                                   \
+	printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd)
+
+###
+# C flags to be used in rule definitions, includes:
+# - depfile generation
+# - global $(CFLAGS)
+# - per target C flags
+# - per object C flags
+# - BUILD_STR macro to allow '-D"$(variable)"' constructs
+c_flags = -Wp,-MD,$(depfile),-MT,$@ $(CFLAGS) -D"BUILD_STR(s)=\#s" $(CFLAGS_$(basetarget).o) $(CFLAGS_$(obj))

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index 83e2887f91a3..6702c9f57fd6 100644
@@ -1,5 +1,6 @@
 tools/perf
 tools/scripts
+tools/build
 tools/lib/traceevent
 tools/lib/api
 tools/lib/symbol/kallsyms.c

index afd2266e0935..1706b93b0ef2 100644
@@ -17,6 +17,9 @@ build-dir := $(srctree)/tools/build
 # Generic definitions
 include $(build-dir)/Build.include
 
+# do not force detected configuration
+-include .config-detected
+
 # Init all relevant variables used in build files so
 # 1) they have correct type
 # 2) they do not inherit any value from the environment

index 648e31ff4021..bd60ca04d5da 100644
@@ -11,6 +11,10 @@ ifneq ($(obj-perf),)
 obj-perf := $(abspath $(obj-perf))/
 endif
 
+$(shell echo -n > .config-detected)
+detected     = $(shell echo "$(1)=y"       >> .config-detected)
+detected_var = $(shell echo "$(1)=$($(1))" >> .config-detected)
+
 LIB_INCLUDE := $(srctree)/tools/lib/
 CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
 

index 1706b93b0ef2..459a3441de78 100644
@@ -32,6 +32,11 @@ subdir-obj-y :=
 build-file := $(dir)/Build
 include $(build-file)
 
+# Create directory unless it exists
+quiet_cmd_mkdir = MKDIR    $(dir $@)
+      cmd_mkdir = mkdir -p $(dir $@)
+     rule_mkdir = $(if $(wildcard $(dir $@)),,@$(call echo-cmd,mkdir) $(cmd_mkdir))
+
 # Compile command
 quiet_cmd_cc_o_c = CC       $@
       cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

@@ -42,9 +47,11 @@ quiet_cmd_ld_multi = LD       $@
 
 # Build rules
 $(OUTPUT)%.o: %.c FORCE
+	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
 $(OUTPUT)%.o: %.S FORCE
+	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
 # Gather build data:

index 16a475a7d492..601272145338 100644
@@ -17,6 +17,5 @@ util/xyarray.c
 util/cgroup.c
 util/rblist.c
 util/strlist.c
-../lib/api/fs/fs.c
 util/trace-event.c
 ../../lib/rbtree.c

index 1f71a32aea78..dd49b40e203b 100644
@@ -84,6 +84,10 @@ ifneq ($(OUTPUT),)
 #$(info Determined 'OUTPUT' to be $(OUTPUT))
 endif
 
+# Do not use make's built-in rules and variables
+# (this increases performance and avoids hard-to-debug behaviour);
+MAKEFLAGS += -rR
+
 $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
 	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
 	@touch $(OUTPUT)PERF-VERSION-FILE

new file mode 100644
index 000000000000..9ea828de3fde
@@ -0,0 +1,2 @@
+perf-y += builtin-bench.o
+perf-y += bench/

index dd49b40e203b..8f50d0c45307 100644
@@ -93,6 +93,7 @@ $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
 	@touch $(OUTPUT)PERF-VERSION-FILE
 
 CC = $(CROSS_COMPILE)gcc
+LD = $(CROSS_COMPILE)ld
 AR = $(CROSS_COMPILE)ar
 PKG_CONFIG = $(CROSS_COMPILE)pkg-config
 

@@ -462,21 +463,6 @@ LIB_OBJS += $(OUTPUT)tests/thread-mg-share.o
 LIB_OBJS += $(OUTPUT)tests/switch-tracking.o
 
 BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
-BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
-# Benchmark modules
-BUILTIN_OBJS += $(OUTPUT)bench/sched-messaging.o
-BUILTIN_OBJS += $(OUTPUT)bench/sched-pipe.o
-ifeq ($(ARCH), x86)
-ifeq ($(IS_64_BIT), 1)
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy-x86-64-asm.o
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memset-x86-64-asm.o
-endif
-endif
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy.o
-BUILTIN_OBJS += $(OUTPUT)bench/futex-hash.o
-BUILTIN_OBJS += $(OUTPUT)bench/futex-wake.o
-BUILTIN_OBJS += $(OUTPUT)bench/futex-requeue.o
-
 BUILTIN_OBJS += $(OUTPUT)builtin-diff.o
 BUILTIN_OBJS += $(OUTPUT)builtin-evlist.o
 BUILTIN_OBJS += $(OUTPUT)builtin-help.o

@@ -595,10 +581,6 @@ ifeq ($(NO_PERF_REGS),0)
   LIB_OBJS += $(OUTPUT)util/perf_regs.o
 endif
 
-ifndef NO_LIBNUMA
-  BUILTIN_OBJS += $(OUTPUT)bench/numa.o
-endif
-
 ifndef NO_ZLIB
   LIB_OBJS += $(OUTPUT)util/zlib.o
 endif

@@ -625,14 +607,22 @@ shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
 strip: $(PROGRAMS) $(OUTPUT)perf
 	$(STRIP) $(STRIP_OPTS) $(PROGRAMS) $(OUTPUT)perf
 
+PERF_IN := $(OUTPUT)perf-in.o
+
+export srctree OUTPUT RM CC LD CFLAGS V
+build := -f $(srctree)/tools/build/Makefile.build dir=. obj
+
+$(PERF_IN): FORCE
+	@$(MAKE) $(build)=perf
+
 $(OUTPUT)perf.o: perf.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -include $(OUTPUT)PERF-VERSION-FILE \
 		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
 		$(CFLAGS) -c $(filter %.c,$^) -o $@
 
-$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS)
+$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS) $(PERF_IN)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
-               $(BUILTIN_OBJS) $(LIBS) -o $@
+               $(BUILTIN_OBJS) $(PERF_IN) $(LIBS) -o $@
 
 $(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H)
 	$(QUIET_CC)$(CC) -o $@ -c -fPIC $(CFLAGS) $(GTK_CFLAGS) $<

@@ -984,6 +974,8 @@ config-clean:
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf.o $(LANG_BINDINGS) $(GTK_OBJS)
+	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
+	@$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
 	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean

@@ -999,7 +991,9 @@ else
     GIT-HEAD-PHONY =
 endif
 
+FORCE:
+
 .PHONY: all install clean config-clean strip install-gtk
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS FORCE
 

new file mode 100644
index 000000000000..5ce98023d518
@@ -0,0 +1,11 @@
+perf-y += sched-messaging.o
+perf-y += sched-pipe.o
+perf-y += mem-memcpy.o
+perf-y += futex-hash.o
+perf-y += futex-wake.o
+perf-y += futex-requeue.o
+
+perf-$(CONFIG_X86_64) += mem-memcpy-x86-64-asm.o
+perf-$(CONFIG_X86_64) += mem-memset-x86-64-asm.o
+
+perf-$(CONFIG_NUMA) += numa.o

index bd60ca04d5da..1938432969ab 100644
@@ -28,6 +28,7 @@ ifeq ($(ARCH),x86)
     CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
     LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
+    $(call detected,CONFIG_X86_64)
   else
     LIBUNWIND_LIBS = -lunwind -lunwind-x86
   endif

@@ -633,6 +634,7 @@ ifndef NO_LIBNUMA
   else
     CFLAGS += -DHAVE_LIBNUMA_SUPPORT
     EXTLIBS += -lnuma
+    $(call detected,CONFIG_NUMA)
   endif
 endif
 

index 9ea828de3fde..b4b6a7ca760b 100644
@@ -1,2 +1,3 @@
 perf-y += builtin-bench.o
 perf-y += bench/
+perf-y += tests/

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index 1938432969ab..10a0ad839390 100644
@@ -20,10 +20,13 @@ CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
 
 include $(src-perf)/config/Makefile.arch
 
+$(call detected_var,ARCH)
+
 NO_PERF_REGS := 1
 
 # Additional ARCH settings for x86
 ifeq ($(ARCH),x86)
+  $(call detected,CONFIG_X86)
   ifeq (${IS_64_BIT}, 1)
     CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S

@@ -418,6 +421,7 @@ endif
 
 ifeq ($(dwarf-post-unwind),1)
   CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
+  $(call detected,CONFIG_DWARF_UNWIND)
 else
   NO_DWARF_UNWIND := 1
 endif

@@ -815,3 +819,9 @@ endif
 ifeq ($(display_lib),1)
   $(info )
 endif
+
+$(call detected_var,bindir_SQ)
+$(call detected_var,PYTHON_WORD)
+ifneq ($(OUTPUT),)
+$(call detected_var,OUTPUT)
+endif

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index b4b6a7ca760b..80a944b929da 100644
@@ -1,3 +1,32 @@
 perf-y += builtin-bench.o
+perf-y += builtin-annotate.o
+perf-y += builtin-diff.o
+perf-y += builtin-evlist.o
+perf-y += builtin-help.o
+perf-y += builtin-sched.o
+perf-y += builtin-buildid-list.o
+perf-y += builtin-buildid-cache.o
+perf-y += builtin-list.o
+perf-y += builtin-record.o
+perf-y += builtin-report.o
+perf-y += builtin-stat.o
+perf-y += builtin-timechart.o
+perf-y += builtin-top.o
+perf-y += builtin-script.o
+perf-y += builtin-kmem.o
+perf-y += builtin-lock.o
+perf-y += builtin-kvm.o
+perf-y += builtin-inject.o
+perf-y += builtin-mem.o
+
+perf-$(CONFIG_AUDIT) += builtin-trace.o
+
 perf-y += bench/
 perf-y += tests/
+
+paths += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))"
+paths += -DPERF_INFO_PATH="BUILD_STR($(infodir_SQ))"
+paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
+
+CFLAGS_builtin-help.o      += $(paths)
+CFLAGS_builtin-timechart.o += $(paths)

index 01caaa9ca0d6..37f2257f03e6 100644
@@ -423,26 +423,7 @@ LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
 
 LIB_OBJS += $(OUTPUT)arch/common.o
 
-BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
-BUILTIN_OBJS += $(OUTPUT)builtin-diff.o
-BUILTIN_OBJS += $(OUTPUT)builtin-evlist.o
-BUILTIN_OBJS += $(OUTPUT)builtin-help.o
-BUILTIN_OBJS += $(OUTPUT)builtin-sched.o
-BUILTIN_OBJS += $(OUTPUT)builtin-buildid-list.o
-BUILTIN_OBJS += $(OUTPUT)builtin-buildid-cache.o
-BUILTIN_OBJS += $(OUTPUT)builtin-list.o
-BUILTIN_OBJS += $(OUTPUT)builtin-record.o
-BUILTIN_OBJS += $(OUTPUT)builtin-report.o
-BUILTIN_OBJS += $(OUTPUT)builtin-stat.o
-BUILTIN_OBJS += $(OUTPUT)builtin-timechart.o
-BUILTIN_OBJS += $(OUTPUT)builtin-top.o
-BUILTIN_OBJS += $(OUTPUT)builtin-script.o
 BUILTIN_OBJS += $(OUTPUT)builtin-probe.o
-BUILTIN_OBJS += $(OUTPUT)builtin-kmem.o
-BUILTIN_OBJS += $(OUTPUT)builtin-lock.o
-BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
-BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
-BUILTIN_OBJS += $(OUTPUT)builtin-mem.o
 
 PERFLIBS = $(LIB_FILE) $(LIBAPIKFS) $(LIBTRACEEVENT)
 

@@ -484,10 +465,6 @@ ifndef NO_LIBUNWIND
   LIB_OBJS += $(OUTPUT)util/unwind-libunwind.o
 endif
 
-ifndef NO_LIBAUDIT
-  BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
-endif
-
 ifndef NO_SLANG
   LIB_OBJS += $(OUTPUT)ui/browser.o
   LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o

@@ -589,18 +566,6 @@ $(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H)
 $(OUTPUT)libperf-gtk.so: $(GTK_OBJS) $(PERFLIBS)
 	$(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
 
-$(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
-		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
-
-$(OUTPUT)builtin-timechart.o: builtin-timechart.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
-		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
-
 $(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt
 
 $(OUTPUT)common-cmds.h: $(wildcard Documentation/perf-*.txt)

index 10a0ad839390..e8723b4134f1 100644
@@ -450,6 +450,7 @@ ifndef NO_LIBAUDIT
   else
     CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
     EXTLIBS += -laudit
+    $(call detected,CONFIG_AUDIT)
   endif
 endif
 

@@ -825,3 +826,6 @@ $(call detected_var,PYTHON_WORD)
 ifneq ($(OUTPUT),)
 $(call detected_var,OUTPUT)
 endif
+$(call detected_var,htmldir_SQ)
+$(call detected_var,infodir_SQ)
+$(call detected_var,mandir_SQ)

index 459a3441de78..52911f616076 100644
@@ -32,6 +32,9 @@ subdir-obj-y :=
 build-file := $(dir)/Build
 include $(build-file)
 
+quiet_cmd_flex  = FLEX     $@
+quiet_cmd_bison = BISON    $@
+
 # Create directory unless it exists
 quiet_cmd_mkdir = MKDIR    $(dir $@)
       cmd_mkdir = mkdir -p $(dir $@)

index 80a944b929da..31c4c555cc81 100644
@@ -30,3 +30,6 @@ paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
 
 CFLAGS_builtin-help.o      += $(paths)
 CFLAGS_builtin-timechart.o += $(paths)
+
+libperf-y += util/
+libperf-y += arch/

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new file mode 100644
index 000000000000..304f5e76c613
@@ -0,0 +1 @@
+libperf-y += common.o

index e8723b4134f1..0b61ec2c667d 100644
@@ -122,6 +122,8 @@ ifdef PARSER_DEBUG
   PARSER_DEBUG_BISON := -t
   PARSER_DEBUG_FLEX  := -d
   CFLAGS             += -DPARSER_DEBUG
+  $(call detected_var,PARSER_DEBUG_BISON)
+  $(call detected_var,PARSER_DEBUG_FLEX)
 endif
 
 ifndef NO_LIBPYTHON

@@ -829,3 +831,6 @@ endif
 $(call detected_var,htmldir_SQ)
 $(call detected_var,infodir_SQ)
 $(call detected_var,mandir_SQ)
+$(call detected_var,ETC_PERFCONFIG_SQ)
+$(call detected_var,prefix_SQ)
+$(call detected_var,perfexecdir_SQ)

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index 31c4c555cc81..170e4563bb24 100644
@@ -20,6 +20,7 @@ perf-y += builtin-inject.o
 perf-y += builtin-mem.o
 
 perf-$(CONFIG_AUDIT) += builtin-trace.o
+perf-$(CONFIG_LIBELF) += builtin-probe.o
 
 perf-y += bench/
 perf-y += tests/

index fa8268ce4659..564d18806446 100644
@@ -325,9 +325,6 @@ LIB_H += util/data.h
 LIB_H += util/kvm-stat.h
 LIB_H += util/thread-stack.h
 
-LIB_OBJS += $(OUTPUT)util/symbol-elf.o
-LIB_OBJS += $(OUTPUT)util/probe-event.o
-
 LIB_OBJS += $(OUTPUT)ui/setup.o
 LIB_OBJS += $(OUTPUT)ui/helpline.o
 LIB_OBJS += $(OUTPUT)ui/progress.o

@@ -335,8 +332,6 @@ LIB_OBJS += $(OUTPUT)ui/util.o
 LIB_OBJS += $(OUTPUT)ui/hist.o
 LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
 
-BUILTIN_OBJS += $(OUTPUT)builtin-probe.o
-
 PERFLIBS = $(LIB_FILE) $(LIBAPIKFS) $(LIBTRACEEVENT)
 
 # We choose to avoid "if .. else if .. else .. endif endif"

@@ -349,19 +344,7 @@ ifneq ($(OUTPUT),)
   CFLAGS += -I$(OUTPUT)
 endif
 
-ifdef NO_LIBELF
-# Remove ELF/DWARF dependent codes
-LIB_OBJS := $(filter-out $(OUTPUT)util/symbol-elf.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/dwarf-aux.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/probe-event.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/probe-finder.o,$(LIB_OBJS))
-
-BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS))
-
-# Use minimal symbol handling
-LIB_OBJS += $(OUTPUT)util/symbol-minimal.o
-
-else # NO_LIBELF
+ifndef NO_LIBELF
 ifndef NO_DWARF
   LIB_OBJS += $(OUTPUT)util/probe-finder.o
   LIB_OBJS += $(OUTPUT)util/dwarf-aux.o

index 0b61ec2c667d..1a3720f2cdbb 100644
@@ -365,6 +365,7 @@ endif # NO_LIBELF
 ifndef NO_LIBELF
   CFLAGS += -DHAVE_LIBELF_SUPPORT
   EXTLIBS += -lelf
+  $(call detected,CONFIG_LIBELF)
 
   ifeq ($(feature-libelf-mmap), 1)
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT

index 2a50aabec8dc..65029041bc13 100644
@@ -75,6 +75,13 @@ libperf-y += tsc.o
 libperf-y += cloexec.o
 libperf-y += thread-stack.o
 
+libperf-$(CONFIG_LIBELF) += symbol-elf.o
+libperf-$(CONFIG_LIBELF) += probe-event.o
+
+ifndef CONFIG_LIBELF
+libperf-y += symbol-minimal.o
+endif
+
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 

index 564d18806446..d0df16556fe4 100644
@@ -344,13 +344,6 @@ ifneq ($(OUTPUT),)
   CFLAGS += -I$(OUTPUT)
 endif
 
-ifndef NO_LIBELF
-ifndef NO_DWARF
-  LIB_OBJS += $(OUTPUT)util/probe-finder.o
-  LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
-endif # NO_DWARF
-endif # NO_LIBELF
-
 ifndef NO_LIBDW_DWARF_UNWIND
   LIB_OBJS += $(OUTPUT)util/unwind-libdw.o
   LIB_H += util/unwind-libdw.h

index 1a3720f2cdbb..20f00b2effb9 100644
@@ -386,6 +386,7 @@ ifndef NO_LIBELF
       CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
       LDFLAGS += $(LIBDW_LDFLAGS)
       EXTLIBS += -ldw
+      $(call detected,CONFIG_DWARF)
     endif # PERF_HAVE_DWARF_REGS
   endif # NO_DWARF
 endif # NO_LIBELF

index 65029041bc13..b21f67172983 100644
@@ -82,6 +82,9 @@ ifndef CONFIG_LIBELF
 libperf-y += symbol-minimal.o
 endif
 
+libperf-$(CONFIG_DWARF) += probe-finder.o
+libperf-$(CONFIG_DWARF) += dwarf-aux.o
+
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 

index d0df16556fe4..a375f6912bf2 100644
@@ -344,15 +344,6 @@ ifneq ($(OUTPUT),)
   CFLAGS += -I$(OUTPUT)
 endif
 
-ifndef NO_LIBDW_DWARF_UNWIND
-  LIB_OBJS += $(OUTPUT)util/unwind-libdw.o
-  LIB_H += util/unwind-libdw.h
-endif
-
-ifndef NO_LIBUNWIND
-  LIB_OBJS += $(OUTPUT)util/unwind-libunwind.o
-endif
-
 ifndef NO_SLANG
   LIB_OBJS += $(OUTPUT)ui/browser.o
   LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o

index 20f00b2effb9..2b4b273cf804 100644
@@ -414,9 +414,11 @@ ifdef NO_LIBUNWIND
     dwarf-post-unwind := 0
   else
     dwarf-post-unwind-text := libdw
+    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
   endif
 else
   dwarf-post-unwind-text := libunwind
+  $(call detected,CONFIG_LIBUNWIND)
   # Enable libunwind support by default.
   ifndef NO_LIBDW_DWARF_UNWIND
     NO_LIBDW_DWARF_UNWIND := 1

index b21f67172983..7a58ee437085 100644
@@ -85,6 +85,9 @@ endif
 libperf-$(CONFIG_DWARF) += probe-finder.o
 libperf-$(CONFIG_DWARF) += dwarf-aux.o
 
+libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
+libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
+
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 

index 170e4563bb24..e84ced325147 100644
@@ -34,3 +34,4 @@ CFLAGS_builtin-timechart.o += $(paths)
 
 libperf-y += util/
 libperf-y += arch/
+libperf-y += ui/

index a375f6912bf2..b08a939ae52c 100644
@@ -325,13 +325,6 @@ LIB_H += util/data.h
 LIB_H += util/kvm-stat.h
 LIB_H += util/thread-stack.h
 
-LIB_OBJS += $(OUTPUT)ui/setup.o
-LIB_OBJS += $(OUTPUT)ui/helpline.o
-LIB_OBJS += $(OUTPUT)ui/progress.o
-LIB_OBJS += $(OUTPUT)ui/util.o
-LIB_OBJS += $(OUTPUT)ui/hist.o
-LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
-
 PERFLIBS = $(LIB_FILE) $(LIBAPIKFS) $(LIBTRACEEVENT)
 
 # We choose to avoid "if .. else if .. else .. endif endif"

@@ -489,9 +482,6 @@ $(OUTPUT)%.o: %.S
 $(OUTPUT)%.s: %.S
 	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
 
-$(OUTPUT)ui/setup.o: ui/setup.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DLIBDIR='"$(libdir_SQ)"' $<
-
 $(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
 

index 2b4b273cf804..e7d1b46b7d31 100644
@@ -838,3 +838,4 @@ $(call detected_var,mandir_SQ)
 $(call detected_var,ETC_PERFCONFIG_SQ)
 $(call detected_var,prefix_SQ)
 $(call detected_var,perfexecdir_SQ)
+$(call detected_var,LIBDIR)

new file mode 100644
index 000000000000..077b6a448ddc
@@ -0,0 +1,8 @@
+libperf-y += setup.o
+libperf-y += helpline.o
+libperf-y += progress.o
+libperf-y += util.o
+libperf-y += hist.o
+libperf-y += stdio/hist.o
+
+CFLAGS_setup.o += -DLIBDIR="BUILD_STR($(LIBDIR))"

index b08a939ae52c..66e0c930da9c 100644
@@ -337,24 +337,6 @@ ifneq ($(OUTPUT),)
   CFLAGS += -I$(OUTPUT)
 endif
 
-ifndef NO_SLANG
-  LIB_OBJS += $(OUTPUT)ui/browser.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/map.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/header.o
-  LIB_OBJS += $(OUTPUT)ui/tui/setup.o
-  LIB_OBJS += $(OUTPUT)ui/tui/util.o
-  LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
-  LIB_OBJS += $(OUTPUT)ui/tui/progress.o
-  LIB_H += ui/tui/tui.h
-  LIB_H += ui/browser.h
-  LIB_H += ui/browsers/map.h
-  LIB_H += ui/keysyms.h
-  LIB_H += ui/libslang.h
-endif
-
 ifndef NO_GTK2
   ALL_PROGRAMS += $(OUTPUT)libperf-gtk.so
 

@@ -482,21 +464,6 @@ $(OUTPUT)%.o: %.S
 $(OUTPUT)%.s: %.S
 	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
 
-$(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/annotate.o: ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/hists.o: ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/map.o: ui/browsers/map.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/scripts.o: ui/browsers/scripts.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
 $(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default $<
 

index e7d1b46b7d31..4e5f080e2a22 100644
@@ -473,6 +473,7 @@ ifndef NO_SLANG
     CFLAGS += -I/usr/include/slang
     CFLAGS += -DHAVE_SLANG_SUPPORT
     EXTLIBS += -lslang
+    $(call detected,CONFIG_SLANG)
   endif
 endif
 

index 077b6a448ddc..0a73538c0441 100644
@@ -6,3 +6,9 @@ libperf-y += hist.o
 libperf-y += stdio/hist.o
 
 CFLAGS_setup.o += -DLIBDIR="BUILD_STR($(LIBDIR))"
+
+libperf-$(CONFIG_SLANG) += browser.o
+libperf-$(CONFIG_SLANG) += browsers/
+libperf-$(CONFIG_SLANG) += tui/
+
+CFLAGS_browser.o += -DENABLE_SLFUTURE_CONST

new file mode 100644
index 000000000000..de223f5bed58
@@ -0,0 +1,10 @@
+libperf-y += annotate.o
+libperf-y += hists.o
+libperf-y += map.o
+libperf-y += scripts.o
+libperf-y += header.o
+
+CFLAGS_annotate.o += -DENABLE_SLFUTURE_CONST
+CFLAGS_hists.o    += -DENABLE_SLFUTURE_CONST
+CFLAGS_map.o      += -DENABLE_SLFUTURE_CONST
+CFLAGS_scripts.o  += -DENABLE_SLFUTURE_CONST

new file mode 100644
index 000000000000..9e4c6ca41a9f
@@ -0,0 +1,4 @@
+libperf-y += setup.o
+libperf-y += util.o
+libperf-y += helpline.o
+libperf-y += progress.o

index e84ced325147..a9ff8fd0bff9 100644
@@ -35,3 +35,5 @@ CFLAGS_builtin-timechart.o += $(paths)
 libperf-y += util/
 libperf-y += arch/
 libperf-y += ui/
+
+gtk-y += ui/gtk/

index 66e0c930da9c..3cea829f9a01 100644
@@ -339,14 +339,7 @@ endif
 
 ifndef NO_GTK2
   ALL_PROGRAMS += $(OUTPUT)libperf-gtk.so
-
-  GTK_OBJS += $(OUTPUT)ui/gtk/browser.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/hists.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/setup.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/util.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/helpline.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/progress.o
-  GTK_OBJS += $(OUTPUT)ui/gtk/annotate.o
+  GTK_IN := $(OUTPUT)gtk-in.o
 
 install-gtk: $(OUTPUT)libperf-gtk.so
 	$(call QUIET_INSTALL, 'GTK UI') \

@@ -414,10 +407,10 @@ $(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS) $(PERF_IN)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
                $(BUILTIN_OBJS) $(PERF_IN) $(LIBS) -o $@
 
-$(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H)
-	$(QUIET_CC)$(CC) -o $@ -c -fPIC $(CFLAGS) $(GTK_CFLAGS) $<
+$(GTK_IN): FORCE
+	@$(MAKE) $(build)=gtk
 
-$(OUTPUT)libperf-gtk.so: $(GTK_OBJS) $(PERFLIBS)
+$(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS)
 	$(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
 
 $(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt

@@ -697,7 +690,7 @@ config-clean:
 	@$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
-	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf.o $(LANG_BINDINGS) $(GTK_OBJS)
+	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf.o $(LANG_BINDINGS)
 	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
 	@$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32

index 4e5f080e2a22..05b6724fdb19 100644
@@ -840,3 +840,4 @@ $(call detected_var,ETC_PERFCONFIG_SQ)
 $(call detected_var,prefix_SQ)
 $(call detected_var,perfexecdir_SQ)
 $(call detected_var,LIBDIR)
+$(call detected_var,GTK_CFLAGS)

new file mode 100644
index 000000000000..ec22e899a224
@@ -0,0 +1,9 @@
+CFLAGS_gtk += -fPIC $(GTK_CFLAGS)
+
+gtk-y += browser.o
+gtk-y += hists.o
+gtk-y += setup.o
+gtk-y += util.o
+gtk-y += helpline.o
+gtk-y += progress.o
+gtk-y += annotate.o

index a9ff8fd0bff9..7035a51deff8 100644
@@ -35,5 +35,6 @@ CFLAGS_builtin-timechart.o += $(paths)
 libperf-y += util/
 libperf-y += arch/
 libperf-y += ui/
+libperf-$(CONFIG_SCRIPT) += scripts/
 
 gtk-y += ui/gtk/

index 3cea829f9a01..766334c35d54 100644
@@ -347,16 +347,6 @@ install-gtk: $(OUTPUT)libperf-gtk.so
 		$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
-ifndef NO_LIBPERL
-  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o
-  LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
-endif
-
-ifndef NO_LIBPYTHON
-  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
-  LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
-endif
-
 ifeq ($(NO_PERF_REGS),0)
   ifeq ($(ARCH),x86)
     LIB_H += arch/x86/include/perf_regs.h

@@ -457,18 +447,6 @@ $(OUTPUT)%.o: %.S
 $(OUTPUT)%.s: %.S
 	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
 
-$(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default $<
-
-$(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o: scripts/perl/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs -Wno-undef -Wno-switch-default $<
-
-$(OUTPUT)util/scripting-engines/trace-event-python.o: util/scripting-engines/trace-event-python.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
-
-$(OUTPUT)scripts/python/Perf-Trace-Util/Context.o: scripts/python/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
-
 $(OUTPUT)perf-%: %.o $(PERFLIBS)
 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)
 

index 05b6724fdb19..fabc0cc874c2 100644
@@ -512,6 +512,8 @@ else
   else
     LDFLAGS += $(PERL_EMBED_LDFLAGS)
     EXTLIBS += $(PERL_EMBED_LIBADD)
+    $(call detected,CONFIG_LIBPERL)
+    CONFIG_SCRIPT := y
   endif
 endif
 

@@ -571,6 +573,8 @@ else
           LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
           EXTLIBS += $(PYTHON_EMBED_LIBADD)
           LANG_BINDINGS += $(obj-perf)python/perf.so
+          $(call detected,CONFIG_LIBPYTHON)
+          CONFIG_SCRIPT := y
         endif
       endif
     endif

@@ -841,3 +845,6 @@ $(call detected_var,prefix_SQ)
 $(call detected_var,perfexecdir_SQ)
 $(call detected_var,LIBDIR)
 $(call detected_var,GTK_CFLAGS)
+$(call detected_var,PERL_EMBED_CCOPTS)
+$(call detected_var,PYTHON_EMBED_CCOPTS)
+$(call detected_var,CONFIG_SCRIPT)

new file mode 100644
index 000000000000..41efd7e368b3
@@ -0,0 +1,2 @@
+libperf-$(CONFIG_LIBPERL)   += perl/Perf-Trace-Util/
+libperf-$(CONFIG_LIBPYTHON) += python/Perf-Trace-Util/

new file mode 100644
index 000000000000..928e110179cb
@@ -0,0 +1,3 @@
+libperf-y += Context.o
+
+CFLAGS_Context.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs -Wno-undef -Wno-switch-default

new file mode 100644
index 000000000000..aefc15c9444a
@@ -0,0 +1,3 @@
+libperf-y += Context.o
+
+CFLAGS_Context.o += $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs

index 7a58ee437085..f11463be4506 100644
@@ -88,6 +88,8 @@ libperf-$(CONFIG_DWARF) += dwarf-aux.o
 libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
 libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
 
+libperf-$(CONFIG_SCRIPT) += scripting-engines/
+
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 

new file mode 100644
index 000000000000..6516e220c247
@@ -0,0 +1,6 @@
+libperf-$(CONFIG_LIBPERL)   += trace-event-perl.o
+libperf-$(CONFIG_LIBPYTHON) += trace-event-python.o
+
+CFLAGS_trace-event-perl.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default
+
+CFLAGS_trace-event-python.o += $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow

index 766334c35d54..da57ee1d0518 100644
@@ -347,13 +347,6 @@ install-gtk: $(OUTPUT)libperf-gtk.so
 		$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
-ifeq ($(NO_PERF_REGS),0)
-  ifeq ($(ARCH),x86)
-    LIB_H += arch/x86/include/perf_regs.h
-  endif
-  LIB_OBJS += $(OUTPUT)util/perf_regs.o
-endif
-
 ifndef NO_ZLIB
   LIB_OBJS += $(OUTPUT)util/zlib.o
 endif

index fabc0cc874c2..ab265dfdfa8b 100644
@@ -48,6 +48,10 @@ ifeq ($(ARCH),arm64)
   LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
 endif
 
+ifeq ($(NO_PERF_REGS),0)
+  $(call detected,CONFIG_PERF_REGS)
+endif
+
 # So far there's only x86 and arm libdw unwind support merged in perf.
 # Disable it on all other architectures in case libdw unwind
 # support is detected in system. Add supported architectures

index f11463be4506..65ff4de61483 100644
@@ -90,6 +90,8 @@ libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
 
 libperf-$(CONFIG_SCRIPT) += scripting-engines/
 
+libperf-$(CONFIG_PERF_REGS) += perf_regs.o
+
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 

index da57ee1d0518..6154384eb2ee 100644
@@ -347,10 +347,6 @@ install-gtk: $(OUTPUT)libperf-gtk.so
 		$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
-ifndef NO_ZLIB
-  LIB_OBJS += $(OUTPUT)util/zlib.o
-endif
-
 ifdef ASCIIDOC8
   export ASCIIDOC8
 endif

index ab265dfdfa8b..1f8851a7453b 100644
@@ -636,6 +636,7 @@ ifndef NO_ZLIB
   ifeq ($(feature-zlib), 1)
     CFLAGS += -DHAVE_ZLIB_SUPPORT
     EXTLIBS += -lz
+    $(call detected,CONFIG_ZLIB)
   else
     NO_ZLIB := 1
   endif

index 65ff4de61483..1f6e88684e31 100644
@@ -91,6 +91,7 @@ libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
 libperf-$(CONFIG_SCRIPT) += scripting-engines/
 
 libperf-$(CONFIG_PERF_REGS) += perf_regs.o
+libperf-$(CONFIG_ZLIB) += zlib.o
 
 CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"

index 7035a51deff8..797bd633aced 100644
@@ -25,12 +25,15 @@ perf-$(CONFIG_LIBELF) += builtin-probe.o
 perf-y += bench/
 perf-y += tests/
 
+perf-y += perf.o
+
 paths += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))"
 paths += -DPERF_INFO_PATH="BUILD_STR($(infodir_SQ))"
 paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
 
 CFLAGS_builtin-help.o      += $(paths)
 CFLAGS_builtin-timechart.o += $(paths)
+CFLAGS_perf.o              += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))" -include $(OUTPUT)PERF-VERSION-FILE
 
 libperf-y += util/
 libperf-y += arch/

index 6154384eb2ee..e58a321bf1c3 100644
@@ -374,16 +374,11 @@ PERF_IN := $(OUTPUT)perf-in.o
 export srctree OUTPUT RM CC LD CFLAGS V BISON FLEX
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
-$(PERF_IN): FORCE
+$(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE
 	@$(MAKE) $(build)=perf
 
-$(OUTPUT)perf.o: perf.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -include $(OUTPUT)PERF-VERSION-FILE \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		$(CFLAGS) -c $(filter %.c,$^) -o $@
-
-$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS) $(PERF_IN)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
+$(OUTPUT)perf: $(BUILTIN_OBJS) $(PERFLIBS) $(PERF_IN)
+	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) \
                $(BUILTIN_OBJS) $(PERF_IN) $(LIBS) -o $@
 
 $(GTK_IN): FORCE

@@ -401,8 +396,7 @@ $(SCRIPTS) : % : %.sh
 	$(QUIET_GEN)$(INSTALL) '[email protected]' '$(OUTPUT)$@'
 
 # These can record PERF_VERSION
-$(OUTPUT)perf.o perf.spec \
-	$(SCRIPTS) \
+perf.spec $(SCRIPTS) \
 	: $(OUTPUT)PERF-VERSION-FILE
 
 .SUFFIXES:

@@ -657,7 +651,7 @@ config-clean:
 	@$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
-	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(OUTPUT)perf.o $(LANG_BINDINGS)
+	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
 	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
 	@$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32

index 304f5e76c613..109eb75cf7de 100644
@@ -1 +1,2 @@
 libperf-y += common.o
+libperf-y += $(ARCH)/

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..e69de29bb2d1

new file mode 100644
index 000000000000..41bf61da476a
@@ -0,0 +1,2 @@
+libperf-y += util/
+libperf-$(CONFIG_DWARF_UNWIND) += tests/

index 9b21881db52f..21322e0385b8 100644
@@ -1,19 +1,4 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 endif
-ifndef NO_LIBUNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o
-endif
-ifndef NO_LIBDW_DWARF_UNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libdw.o
-endif
-ifndef NO_DWARF_UNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/regs_load.o
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/dwarf-unwind.o
-endif
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/tsc.o
-LIB_H += arch/$(ARCH)/util/tsc.h
 HAVE_KVM_STAT_SUPPORT := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o

new file mode 100644
index 000000000000..b30eff9bcc83
@@ -0,0 +1,2 @@
+libperf-y += regs_load.o
+libperf-y += dwarf-unwind.o

new file mode 100644
index 000000000000..cfbccc4e3187
@@ -0,0 +1,8 @@
+libperf-y += header.o
+libperf-y += tsc.o
+libperf-y += kvm-stat.o
+
+libperf-$(CONFIG_DWARF) += dwarf-regs.o
+
+libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
+libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o

index e69de29bb2d1..41bf61da476a 100644
@@ -0,0 +1,2 @@
+libperf-y += util/
+libperf-$(CONFIG_DWARF_UNWIND) += tests/

index 09d62153d384..7fbca175099e 100644
@@ -1,14 +1,3 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
-endif
-ifndef NO_LIBUNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o
-endif
-ifndef NO_LIBDW_DWARF_UNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libdw.o
-endif
-ifndef NO_DWARF_UNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/regs_load.o
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/tests/dwarf-unwind.o
 endif

new file mode 100644
index 000000000000..b30eff9bcc83
@@ -0,0 +1,2 @@
+libperf-y += regs_load.o
+libperf-y += dwarf-unwind.o

new file mode 100644
index 000000000000..d22e3d07de3d
@@ -0,0 +1,4 @@
+libperf-$(CONFIG_DWARF) += dwarf-regs.o
+
+libperf-$(CONFIG_LIBUNWIND)          += unwind-libunwind.o
+libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o

index e69de29bb2d1..3bfe380bbf4e 100644
@@ -0,0 +1,3 @@
+ifneq ($(CONFIG_DWARF)$(CONFIG_LIBUNWIND),)
+libperf-y += util/
+endif

index 67e9b3d38e89..7fbca175099e 100644
@@ -1,7 +1,3 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
-endif
-ifndef NO_LIBUNWIND
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind-libunwind.o
 endif

new file mode 100644
index 000000000000..e58123a8912b
@@ -0,0 +1,2 @@
+libperf-$(CONFIG_DWARF)     += dwarf-regs.o
+libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o

index e69de29bb2d1..54afe4a467e7 100644
@@ -0,0 +1 @@
+libperf-y += util/

index 6f7782bea5dd..7fbca175099e 100644
@@ -1,6 +1,3 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/skip-callchain-idx.o
 endif
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o

new file mode 100644
index 000000000000..0af6e9b3f728
@@ -0,0 +1,4 @@
+libperf-y += header.o
+
+libperf-$(CONFIG_DWARF) += dwarf-regs.o
+libperf-$(CONFIG_DWARF) += skip-callchain-idx.o

index e69de29bb2d1..54afe4a467e7 100644
@@ -0,0 +1 @@
+libperf-y += util/

index 798ac7379c5f..21322e0385b8 100644
@@ -1,7 +1,4 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 endif
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/header.o
 HAVE_KVM_STAT_SUPPORT := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/kvm-stat.o

new file mode 100644
index 000000000000..8a61372bb47a
@@ -0,0 +1,4 @@
+libperf-y += header.o
+libperf-y += kvm-stat.o
+
+libperf-$(CONFIG_DWARF) += dwarf-regs.o

index e69de29bb2d1..add469481bfd 100644
@@ -0,0 +1 @@
+libperf-$(CONFIG_DWARF) += util/

index 15130b50dfe3..7fbca175099e 100644
@@ -1,4 +1,3 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 endif

new file mode 100644
index 000000000000..332f01243f2f
@@ -0,0 +1 @@
+libperf-y += dwarf-regs.o

index e69de29bb2d1..add469481bfd 100644
@@ -0,0 +1 @@
+libperf-$(CONFIG_DWARF) += util/

index 15130b50dfe3..7fbca175099e 100644
@@ -1,4 +1,3 @@
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
-LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 endif

new file mode 100644
index 000000000000..332f01243f2f
@@ -0,0 +1 @@
+libperf-y += dwarf-regs.o

index 52911f616076..d35b66014992 100644
@@ -44,6 +44,12 @@ quiet_cmd_mkdir = MKDIR    $(dir $@)
 quiet_cmd_cc_o_c = CC       $@
       cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
 
+quiet_cmd_cc_i_c = CPP      $@
+      cmd_cc_i_c = $(CC) $(c_flags) -E -o $@ $<
+
+quiet_cmd_cc_s_c = AS       $@
+      cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $<
+
 # Link agregate command
 quiet_cmd_ld_multi = LD       $@
       cmd_ld_multi = $(LD) -r -o $@ $^

@@ -57,6 +63,18 @@ $(OUTPUT)%.o: %.S FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
+$(OUTPUT)%.i: %.c FORCE
+	$(call rule_mkdir)
+	$(call if_changed_dep,cc_i_c)
+
+$(OUTPUT)%.i: %.S FORCE
+	$(call rule_mkdir)
+	$(call if_changed_dep,cc_i_c)
+
+$(OUTPUT)%.s: %.c FORCE
+	$(call rule_mkdir)
+	$(call if_changed_dep,cc_s_c)
+
 # Gather build data:
 #   obj-y        - list of build objects
 #   subdir-y     - list of directories to nest

@@ -94,7 +112,7 @@ FORCE:
 
 # Include all cmd files to get all the dependency rules
 # for all objects included
-targets   := $(wildcard $(sort $(obj-y)))
+targets   := $(wildcard $(sort $(obj-y) $(MAKECMDGOALS)))
 cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
 
 ifneq ($(cmd_files),)

index e58a321bf1c3..7cee1114a0e1 100644
@@ -419,16 +419,33 @@ endif
 # These two need to be here so that when O= is not used they take precedence
 # over the general rule for .o
 
-$(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
-$(OUTPUT)%.i: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
-$(OUTPUT)%.s: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -S $(CFLAGS) $<
-$(OUTPUT)%.o: %.S
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
-$(OUTPUT)%.s: %.S
-	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
+# get relative building directory (to $(OUTPUT))
+# and '.' if it's $(OUTPUT) itself
+__build-dir = $(subst $(OUTPUT),,$(dir $@))
+build-dir   = $(if $(__build-dir),$(__build-dir),.)
+
+single_dep: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
+
+$(OUTPUT)%.o: %.c single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%.i: %.c single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%.s: %.c single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%-bison.o: %.c single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%-flex.o: %.c single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%.o: %.S single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+
+$(OUTPUT)%.i: %.S single_dep FORCE
+	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)perf-%: %.o $(PERFLIBS)
 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)

@@ -673,5 +690,5 @@ FORCE:
 
 .PHONY: all install clean config-clean strip install-gtk
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS FORCE
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS FORCE single_dep
 

index 1f6e88684e31..fc7d47bf390f 100644
@@ -97,15 +97,19 @@ CFLAGS_config.o   += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
 CFLAGS_exec_cmd.o += -DPERF_EXEC_PATH="BUILD_STR($(perfexecdir_SQ))" -DPREFIX="BUILD_STR($(prefix_SQ))"
 
 $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
+	$(call rule_mkdir)
 	@$(call echo-cmd,flex)$(FLEX) -o $@ --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) util/parse-events.l
 
 $(OUTPUT)util/parse-events-bison.c: util/parse-events.y
+	$(call rule_mkdir)
 	@$(call echo-cmd,bison)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $@ -p parse_events_
 
 $(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
+	$(call rule_mkdir)
 	@$(call echo-cmd,flex)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h util/pmu.l
 
 $(OUTPUT)util/pmu-bison.c: util/pmu.y
+	$(call rule_mkdir)
 	@$(call echo-cmd,bison)$(BISON) -v util/pmu.y -d -o $@ -p perf_pmu_
 
 CFLAGS_parse-events-flex.o  += -w

@@ -121,10 +125,13 @@ CFLAGS_rbtree.o        += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ET
 CFLAGS_parse-events.o  += -Wno-redundant-decls
 
 $(OUTPUT)util/kallsyms.o: ../lib/symbol/kallsyms.c FORCE
+	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
 $(OUTPUT)util/find_next_bit.o: ../lib/util/find_next_bit.c FORCE
+	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
 
 $(OUTPUT)util/rbtree.o: ../../lib/rbtree.c FORCE
+	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)

index 7cee1114a0e1..af3069d94c16 100644
@@ -463,21 +463,6 @@ endif
 $(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
 $(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
 
-# we compile into subdirectories. if the target directory is not the source directory, they might not exists. So
-# we depend the various files onto their directories.
-DIRECTORY_DEPS = $(LIB_OBJS) $(BUILTIN_OBJS) $(GTK_OBJS)
-DIRECTORY_DEPS += $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
-# no need to add flex objects, because they depend on bison ones
-DIRECTORY_DEPS += $(OUTPUT)util/parse-events-bison.c
-DIRECTORY_DEPS += $(OUTPUT)util/pmu-bison.c
-
-OUTPUT_DIRECTORIES := $(sort $(dir $(DIRECTORY_DEPS)))
-
-$(DIRECTORY_DEPS): | $(OUTPUT_DIRECTORIES)
-# In the second step, we make a rule to actually create these directories
-$(OUTPUT_DIRECTORIES):
-	$(QUIET_MKDIR)$(MKDIR) -p $@ 2>/dev/null
-
 LIBPERF_IN := $(OUTPUT)libperf-in.o
 
 $(LIBPERF_IN): FORCE

index af3069d94c16..e193e90b8454 100644
@@ -137,10 +137,6 @@ export prefix bindir sharedir sysconfdir DESTDIR
 SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 
 # Guard against environment variables
-BUILTIN_OBJS =
-LIB_H =
-LIB_OBJS =
-GTK_OBJS =
 PYRF_OBJS =
 SCRIPT_SH =
 

@@ -218,113 +214,6 @@ export PERL_PATH
 
 LIB_FILE=$(OUTPUT)libperf.a
 
-LIB_H += ../lib/symbol/kallsyms.h
-LIB_H += ../../include/uapi/linux/perf_event.h
-LIB_H += ../../include/linux/rbtree.h
-LIB_H += ../../include/linux/list.h
-LIB_H += ../../include/uapi/linux/const.h
-LIB_H += ../include/linux/hash.h
-LIB_H += ../../include/linux/stringify.h
-LIB_H += util/include/linux/bitmap.h
-LIB_H += ../include/linux/bitops.h
-LIB_H += ../include/asm-generic/bitops/atomic.h
-LIB_H += ../include/asm-generic/bitops/find.h
-LIB_H += ../include/asm-generic/bitops/fls64.h
-LIB_H += ../include/asm-generic/bitops/fls.h
-LIB_H += ../include/asm-generic/bitops/__ffs.h
-LIB_H += ../include/asm-generic/bitops/__fls.h
-LIB_H += ../include/asm-generic/bitops.h
-LIB_H += ../include/linux/compiler.h
-LIB_H += ../include/linux/log2.h
-LIB_H += util/include/linux/const.h
-LIB_H += util/include/linux/ctype.h
-LIB_H += util/include/linux/kernel.h
-LIB_H += util/include/linux/list.h
-LIB_H += ../include/linux/export.h
-LIB_H += util/include/linux/poison.h
-LIB_H += util/include/linux/rbtree.h
-LIB_H += util/include/linux/rbtree_augmented.h
-LIB_H += util/include/linux/string.h
-LIB_H += ../include/linux/types.h
-LIB_H += util/include/linux/linkage.h
-LIB_H += util/include/asm/asm-offsets.h
-LIB_H += ../include/asm/bug.h
-LIB_H += util/include/asm/byteorder.h
-LIB_H += util/include/asm/hweight.h
-LIB_H += util/include/asm/swab.h
-LIB_H += util/include/asm/system.h
-LIB_H += util/include/asm/uaccess.h
-LIB_H += util/include/dwarf-regs.h
-LIB_H += util/include/asm/dwarf2.h
-LIB_H += util/include/asm/cpufeature.h
-LIB_H += util/include/asm/unistd_32.h
-LIB_H += util/include/asm/unistd_64.h
-LIB_H += perf.h
-LIB_H += util/annotate.h
-LIB_H += util/cache.h
-LIB_H += util/callchain.h
-LIB_H += util/build-id.h
-LIB_H += util/db-export.h
-LIB_H += util/debug.h
-LIB_H += util/pmu.h
-LIB_H += util/event.h
-LIB_H += util/evsel.h
-LIB_H += util/evlist.h
-LIB_H += util/exec_cmd.h
-LIB_H += util/find-vdso-map.c
-LIB_H += util/levenshtein.h
-LIB_H += util/machine.h
-LIB_H += util/map.h
-LIB_H += util/parse-options.h
-LIB_H += util/parse-events.h
-LIB_H += util/quote.h
-LIB_H += util/util.h
-LIB_H += util/xyarray.h
-LIB_H += util/header.h
-LIB_H += util/help.h
-LIB_H += util/session.h
-LIB_H += util/ordered-events.h
-LIB_H += util/strbuf.h
-LIB_H += util/strlist.h
-LIB_H += util/strfilter.h
-LIB_H += util/svghelper.h
-LIB_H += util/tool.h
-LIB_H += util/run-command.h
-LIB_H += util/sigchain.h
-LIB_H += util/dso.h
-LIB_H += util/symbol.h
-LIB_H += util/color.h
-LIB_H += util/values.h
-LIB_H += util/sort.h
-LIB_H += util/hist.h
-LIB_H += util/comm.h
-LIB_H += util/thread.h
-LIB_H += util/thread_map.h
-LIB_H += util/trace-event.h
-LIB_H += util/probe-finder.h
-LIB_H += util/dwarf-aux.h
-LIB_H += util/probe-event.h
-LIB_H += util/pstack.h
-LIB_H += util/cpumap.h
-LIB_H += util/top.h
-LIB_H += $(ARCH_INCLUDE)
-LIB_H += util/cgroup.h
-LIB_H += $(LIB_INCLUDE)traceevent/event-parse.h
-LIB_H += util/target.h
-LIB_H += util/rblist.h
-LIB_H += util/intlist.h
-LIB_H += util/perf_regs.h
-LIB_H += util/unwind.h
-LIB_H += util/vdso.h
-LIB_H += util/tsc.h
-LIB_H += ui/helpline.h
-LIB_H += ui/progress.h
-LIB_H += ui/util.h
-LIB_H += ui/ui.h
-LIB_H += util/data.h
-LIB_H += util/kvm-stat.h
-LIB_H += util/thread-stack.h
-
 PERFLIBS = $(LIB_FILE) $(LIBAPIKFS) $(LIBTRACEEVENT)
 
 # We choose to avoid "if .. else if .. else .. endif endif"

@@ -377,9 +266,8 @@ build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 $(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE
 	@$(MAKE) $(build)=perf
 
-$(OUTPUT)perf: $(BUILTIN_OBJS) $(PERFLIBS) $(PERF_IN)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) \
-               $(BUILTIN_OBJS) $(PERF_IN) $(LIBS) -o $@
+$(OUTPUT)perf: $(PERFLIBS) $(PERF_IN)
+	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(PERF_IN) $(LIBS) -o $@
 
 $(GTK_IN): FORCE
 	@$(MAKE) $(build)=gtk

@@ -460,15 +348,14 @@ $(OUTPUT)perf-read-vdsox32: perf-read-vdso.c util/find-vdso-map.c
 	$(QUIET_CC)$(CC) -mx32 $(filter -static,$(LDFLAGS)) -Wall -Werror -o $@ perf-read-vdso.c
 endif
 
-$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
-$(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
+$(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)
 
 LIBPERF_IN := $(OUTPUT)libperf-in.o
 
 $(LIBPERF_IN): FORCE
 	@$(MAKE) $(build)=libperf
 
-$(LIB_FILE): $(LIB_OBJS) $(LIBPERF_IN)
+$(LIB_FILE): $(LIBPERF_IN)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN) $(LIB_OBJS)
 
 # libtraceevent.a

@@ -653,7 +540,7 @@ config-clean:
 	@$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
-	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
+	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
 	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
 	@$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32

index e193e90b8454..a763b17be982 100644
@@ -365,7 +365,7 @@ LIBTRACEEVENT_FLAGS  = $(QUIET_SUBDIR1) O=$(OUTPUT)
 LIBTRACEEVENT_FLAGS += CFLAGS="-g -Wall $(EXTRA_CFLAGS)"
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
 
-$(LIBTRACEEVENT): $(TE_SOURCES) $(OUTPUT)PERF-CFLAGS
+$(LIBTRACEEVENT): $(TE_SOURCES)
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) libtraceevent.a plugins
 
 $(LIBTRACEEVENT)-clean:

@@ -444,17 +444,6 @@ cscope:
 	$(QUIET_GEN)$(RM) cscope*; \
 	$(FIND) $(TAG_FOLDERS) -name '*.[hcS]' -print | xargs cscope -b $(TAG_FILES)
 
-### Detect prefix changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
-             $(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ):$(plugindir_SQ)
-
-$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
-	@FLAGS='$(TRACK_CFLAGS)'; \
-	    if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ; then \
-		echo 1>&2 "  FLAGS:   * new build flags or prefix"; \
-		echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
-            fi
-
 ### Testing rules
 
 # GNU make supports exporting all variables by "export" without parameters.

@@ -544,7 +533,7 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
 	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
 	@$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
-	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
+	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
 	$(python-clean)
 

@@ -562,5 +551,5 @@ FORCE:
 
 .PHONY: all install clean config-clean strip install-gtk
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS FORCE single_dep
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE single_dep
 

new file mode 100644
index 000000000000..f6fc6507ba55
@@ -0,0 +1,49 @@
+
+1) perf build
+=============
+The perf build process consists of several separated building blocks,
+which are linked together to form the perf binary:
+  - libperf library (static)
+  - perf builtin commands
+  - traceevent library (static)
+  - GTK ui library
+
+Several makefiles govern the perf build:
+
+  - Makefile
+    top level Makefile working as a wrapper that calls the main
+    Makefile.perf with a -j option to do parallel builds.
+
+  - Makefile.perf
+    main makefile that triggers build of all perf objects including
+    installation and documentation processing.
+
+  - tools/build/Makefile.build
+    main makefile of the build framework
+
+  - tools/build/Build.include
+    build framework generic definitions
+
+  - Build makefiles
+    makefiles that defines build objects
+
+Please refer to tools/build/Documentation/Build.txt for more
+information about build framework.
+
+
+2) perf build
+=============
+The Makefile.perf triggers the build framework for build objects:
+   perf, libperf, gtk
+
+resulting in following objects:
+  $ ls  *-in.o
+  gtk-in.o  libperf-in.o  perf-in.o
+
+Those objects are then used in final linking:
+  libperf-gtk.so <- gtk-in.o  libperf-in.o
+  perf           <- perf-in.o libperf-in.o
+
+
+NOTE this description is omitting other libraries involved, only
+     focusing on build framework outcomes

new file mode 100644
index 000000000000..64dd8d466d2c
@@ -0,0 +1,2 @@
+libapikfs-y += fd/
+libapikfs-y += fs/

74 lines not on this page · raw message

new file mode 100644
index 000000000000..4ddcb0ff7f49
@@ -0,0 +1 @@
+libapikfs-y += array.o

new file mode 100644
index 000000000000..de9c015794ff
@@ -0,0 +1,2 @@
+libapikfs-y += fs.o
+libapikfs-y += debugfs.o

index a763b17be982..5b4d6df73f07 100644
@@ -375,20 +375,12 @@ $(LIBTRACEEVENT)-clean:
 install-traceevent-plugins: $(LIBTRACEEVENT)
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) install_plugins
 
-LIBAPIKFS_SOURCES = $(wildcard $(LIB_PATH)fs/*.[ch] $(LIB_PATH)fd/*.[ch])
-
-# if subdir is set, we've been called from above so target has been built
-# already
-$(LIBAPIKFS): $(LIBAPIKFS_SOURCES)
-ifeq ($(subdir),)
-	$(QUIET_SUBDIR0)$(LIB_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libapikfs.a
-endif
+$(LIBAPIKFS): FORCE
+	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapikfs.a
 
 $(LIBAPIKFS)-clean:
-ifeq ($(subdir),)
 	$(call QUIET_CLEAN, libapikfs)
 	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
-endif
 
 help:
 	@echo 'Perf make targets:'

index 64dd8d466d2c..3653965cf481 100644
@@ -1,2 +1,2 @@
-libapikfs-y += fd/
-libapikfs-y += fs/
+libapi-y += fd/
+libapi-y += fs/

index 27cedb273cca..0785c380466c 100644
@@ -13,7 +13,7 @@ AR = $(CROSS_COMPILE)ar
 
 MAKEFLAGS += --no-print-directory
 
-LIBFILE = $(OUTPUT)libapikfs.a
+LIBFILE = $(OUTPUT)libapi.a
 
 CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64

@@ -21,20 +21,20 @@ CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 RM = rm -f
 
 build  := -f $(srctree)/tools/build/Makefile.build dir=. obj
-API_IN := $(OUTPUT)libapikfs-in.o
+API_IN := $(OUTPUT)libapi-in.o
 
 export srctree OUTPUT CC LD CFLAGS V
 
 all: $(LIBFILE)
 
 $(API_IN): FORCE
-	@$(MAKE) $(build)=libapikfs
+	@$(MAKE) $(build)=libapi
 
 $(LIBFILE): $(API_IN)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(API_IN)
 
 clean:
-	$(call QUIET_CLEAN, libapikfs) $(RM) $(LIBFILE); \
+	$(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \
 	find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
 
 FORCE:

index 4ddcb0ff7f49..605d99f6d71a 100644
@@ -1 +1 @@
-libapikfs-y += array.o
+libapi-y += array.o

index de9c015794ff..6090532359b7 100644
@@ -1,2 +1,2 @@
-libapikfs-y += fs.o
-libapikfs-y += debugfs.o
+libapi-y += fs.o
+libapi-y += debugfs.o

index 5b4d6df73f07..0f2e021ffa1f 100644
@@ -161,7 +161,7 @@ endif
 LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
 export LIBTRACEEVENT
 
-LIBAPIKFS = $(LIB_PATH)libapikfs.a
+LIBAPIKFS = $(LIB_PATH)libapi.a
 export LIBAPIKFS
 
 # python extension build directories

@@ -376,10 +376,10 @@ install-traceevent-plugins: $(LIBTRACEEVENT)
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) install_plugins
 
 $(LIBAPIKFS): FORCE
-	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapikfs.a
+	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
 
 $(LIBAPIKFS)-clean:
-	$(call QUIET_CLEAN, libapikfs)
+	$(call QUIET_CLEAN, libapi)
 	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
 
 help:

new file mode 100644
index 000000000000..c681d0575d16
@@ -0,0 +1,17 @@
+libtraceevent-y += event-parse.o
+libtraceevent-y += event-plugin.o
+libtraceevent-y += trace-seq.o
+libtraceevent-y += parse-filter.o
+libtraceevent-y += parse-utils.o
+libtraceevent-y += kbuffer-parse.o
+
+plugin_jbd2-y         += plugin_jbd2.o
+plugin_hrtimer-y      += plugin_hrtimer.o
+plugin_kmem-y         += plugin_kmem.o
+plugin_kvm-y          += plugin_kvm.o
+plugin_mac80211-y     += plugin_mac80211.o
+plugin_sched_switch-y += plugin_sched_switch.o
+plugin_function-y     += plugin_function.o
+plugin_xen-y          += plugin_xen.o
+plugin_scsi-y         += plugin_scsi.o
+plugin_cfg80211-y     += plugin_cfg80211.o

230 lines not on this page · raw message

index 0f2e021ffa1f..6b6bef8a515a 100644
@@ -358,22 +358,18 @@ $(LIBPERF_IN): FORCE
 $(LIB_FILE): $(LIBPERF_IN)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN) $(LIB_OBJS)
 
-# libtraceevent.a
-TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
-
-LIBTRACEEVENT_FLAGS  = $(QUIET_SUBDIR1) O=$(OUTPUT)
 LIBTRACEEVENT_FLAGS += CFLAGS="-g -Wall $(EXTRA_CFLAGS)"
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
 
-$(LIBTRACEEVENT): $(TE_SOURCES)
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) libtraceevent.a plugins
+$(LIBTRACEEVENT): FORCE
+	@$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a plugins
 
 $(LIBTRACEEVENT)-clean:
 	$(call QUIET_CLEAN, libtraceevent)
 	@$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
 
 install-traceevent-plugins: $(LIBTRACEEVENT)
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) install_plugins
+	@$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
 
 $(LIBAPIKFS): FORCE
 	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a

new file mode 100644
index 000000000000..6f667355b068
@@ -0,0 +1 @@
+liblockdep-y += common.o lockdep.o preload.o rbtree.o

190 lines not on this page · raw message

index 6b6bef8a515a..d5f1d3feea17 100644
@@ -89,13 +89,19 @@ VPATH += $(OUTPUT)
 export VPATH
 endif
 
+ifeq ($(V),1)
+  Q =
+else
+  Q = @
+endif
+
 # Do not use make's built-in rules and variables
 # (this increases performance and avoids hard-to-debug behaviour);
 MAKEFLAGS += -rR
 
 $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
-	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
-	@touch $(OUTPUT)PERF-VERSION-FILE
+	$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
+	$(Q)touch $(OUTPUT)PERF-VERSION-FILE
 
 CC = $(CROSS_COMPILE)gcc
 LD = $(CROSS_COMPILE)ld

@@ -251,7 +257,7 @@ SHELL = $(SHELL_PATH)
 all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
 
 please_set_SHELL_PATH_to_a_more_modern_shell:
-	@$$(:)
+	$(Q)$$(:)
 
 shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
 

@@ -264,13 +270,13 @@ export srctree OUTPUT RM CC LD CFLAGS V BISON FLEX
 build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
 $(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE
-	@$(MAKE) $(build)=perf
+	$(Q)$(MAKE) $(build)=perf
 
 $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(PERF_IN) $(LIBS) -o $@
 
 $(GTK_IN): FORCE
-	@$(MAKE) $(build)=gtk
+	$(Q)$(MAKE) $(build)=gtk
 
 $(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS)
 	$(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)

@@ -315,25 +321,25 @@ build-dir   = $(if $(__build-dir),$(__build-dir),.)
 single_dep: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
 
 $(OUTPUT)%.o: %.c single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.i: %.c single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.s: %.c single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%-bison.o: %.c single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%-flex.o: %.c single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.o: %.S single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)%.i: %.S single_dep FORCE
-	@$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
+	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
 
 $(OUTPUT)perf-%: %.o $(PERFLIBS)
 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)

@@ -353,7 +359,7 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h)
 LIBPERF_IN := $(OUTPUT)libperf-in.o
 
 $(LIBPERF_IN): FORCE
-	@$(MAKE) $(build)=libperf
+	$(Q)$(MAKE) $(build)=libperf
 
 $(LIB_FILE): $(LIBPERF_IN)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIBPERF_IN) $(LIB_OBJS)

@@ -362,21 +368,21 @@ LIBTRACEEVENT_FLAGS += CFLAGS="-g -Wall $(EXTRA_CFLAGS)"
 LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ)
 
 $(LIBTRACEEVENT): FORCE
-	@$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a plugins
+	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a plugins
 
 $(LIBTRACEEVENT)-clean:
 	$(call QUIET_CLEAN, libtraceevent)
-	@$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
+	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
 
 install-traceevent-plugins: $(LIBTRACEEVENT)
-	@$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
+	$(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins
 
 $(LIBAPIKFS): FORCE
-	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
+	$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a
 
 $(LIBAPIKFS)-clean:
 	$(call QUIET_CLEAN, libapi)
-	@$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
+	$(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null
 
 help:
 	@echo 'Perf make targets:'

@@ -514,12 +520,12 @@ $(INSTALL_DOC_TARGETS):
 #
 config-clean:
 	$(call QUIET_CLEAN, config)
-	@$(MAKE) -C config/feature-checks clean >/dev/null
+	$(Q)$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBAPIKFS)-clean config-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
-	@find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
-	@$(RM) .config-detected
+	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
+	$(Q)$(RM) .config-detected
 	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
 	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-FEATURES $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean

index d35b66014992..396b33b124d1 100644
@@ -52,7 +52,7 @@ quiet_cmd_cc_s_c = AS       $@
 
 # Link agregate command
 quiet_cmd_ld_multi = LD       $@
-      cmd_ld_multi = $(LD) -r -o $@ $^
+      cmd_ld_multi = $(LD) -r -o $@ $(wildcard $^)
 
 # Build rules
 $(OUTPUT)%.o: %.c FORCE