X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=Makefile;h=e055b969c325ceb58afee6d27a0214cbf68f8bfd;hb=5c465217a930d4bbb7dd35a56bde1eea5bbd14d6;hp=7b3ecdcdc6c1815ca6241a72b1967593a0335b41;hpb=bb7aeae3d680c2c777f54274b0270ced0599f33d;p=cascardo%2Flinux.git

diff --git a/Makefile b/Makefile
index 7b3ecdcdc6c1..e055b969c325 100644
--- a/Makefile
+++ b/Makefile
@@ -993,7 +993,21 @@ prepare0: archprepare FORCE
 	$(Q)$(MAKE) $(build)=.
 
 # All the preparing..
-prepare: prepare0
+prepare: prepare0 prepare-objtool
+
+ifdef CONFIG_STACK_VALIDATION
+  has_libelf := $(shell echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf - &> /dev/null && echo 1 || echo 0)
+  ifeq ($(has_libelf),1)
+    objtool_target := tools/objtool FORCE
+  else
+    $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev or elfutils-libelf-devel")
+    SKIP_STACK_VALIDATION := 1
+    export SKIP_STACK_VALIDATION
+  endif
+endif
+
+PHONY += prepare-objtool
+prepare-objtool: $(objtool_target)
 
 # Generate some files
 # ---------------------------------------------------------------------------
@@ -1087,6 +1101,14 @@ kselftest:
 kselftest-clean:
 	$(Q)$(MAKE) -C tools/testing/selftests clean
 
+PHONY += kselftest-merge
+kselftest-merge:
+	$(if $(wildcard $(objtree)/.config),, $(error No .config exists, config your kernel first!))
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
+		-m $(objtree)/.config \
+		$(srctree)/tools/testing/selftests/*/config
+	+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
+
 # ---------------------------------------------------------------------------
 # Modules
 
@@ -1295,6 +1317,8 @@ help:
 	@echo  '                    Build, install, and boot kernel before'
 	@echo  '                    running kselftest on it'
 	@echo  '  kselftest-clean - Remove all generated kselftest files'
+	@echo  '  kselftest-merge - Merge all the config dependencies of kselftest to existed'
+	@echo  '                    .config.'
 	@echo  ''
 	@echo  'Kernel packaging:'
 	@$(MAKE) $(build)=$(package-dir) help
@@ -1506,11 +1530,11 @@ image_name:
 # Clear a bunch of variables before executing the submake
 tools/: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
 
 tools/%: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/ $*
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
 
 # Single targets
 # ---------------------------------------------------------------------------