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-rw-r--r--kernel/tools/scripts/Makefile.include84
1 files changed, 84 insertions, 0 deletions
diff --git a/kernel/tools/scripts/Makefile.include b/kernel/tools/scripts/Makefile.include
new file mode 100644
index 000000000..8abbef164
--- /dev/null
+++ b/kernel/tools/scripts/Makefile.include
@@ -0,0 +1,84 @@
+ifneq ($(O),)
+ifeq ($(origin O), command line)
+ dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
+ ABSOLUTE_O := $(shell cd $(O) ; pwd)
+ OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/)
+ COMMAND_O := O=$(ABSOLUTE_O)
+ifeq ($(objtree),)
+ objtree := $(O)
+endif
+endif
+endif
+
+# check that the output directory actually exists
+ifneq ($(OUTPUT),)
+OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
+$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
+endif
+
+#
+# Include saner warnings here, which can catch bugs:
+#
+EXTRA_WARNINGS := -Wbad-function-cast
+EXTRA_WARNINGS += -Wdeclaration-after-statement
+EXTRA_WARNINGS += -Wformat-security
+EXTRA_WARNINGS += -Wformat-y2k
+EXTRA_WARNINGS += -Winit-self
+EXTRA_WARNINGS += -Wmissing-declarations
+EXTRA_WARNINGS += -Wmissing-prototypes
+EXTRA_WARNINGS += -Wnested-externs
+EXTRA_WARNINGS += -Wno-system-headers
+EXTRA_WARNINGS += -Wold-style-definition
+EXTRA_WARNINGS += -Wpacked
+EXTRA_WARNINGS += -Wredundant-decls
+EXTRA_WARNINGS += -Wshadow
+EXTRA_WARNINGS += -Wstrict-aliasing=3
+EXTRA_WARNINGS += -Wstrict-prototypes
+EXTRA_WARNINGS += -Wswitch-default
+EXTRA_WARNINGS += -Wswitch-enum
+EXTRA_WARNINGS += -Wundef
+EXTRA_WARNINGS += -Wwrite-strings
+EXTRA_WARNINGS += -Wformat
+
+ifneq ($(findstring $(MAKEFLAGS), w),w)
+PRINT_DIR = --no-print-directory
+else
+NO_SUBDIR = :
+endif
+
+#
+# Define a callable command for descending to a new directory
+#
+# Call by doing: $(call descend,directory[,target])
+#
+descend = \
+ +mkdir -p $(OUTPUT)$(1) && \
+ $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
+
+QUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir
+QUIET_SUBDIR1 =
+
+ifneq ($(findstring $(MAKEFLAGS),s),s)
+ ifneq ($(V),1)
+ QUIET_CC = @echo ' CC '$@;
+ QUIET_CC_FPIC = @echo ' CC FPIC '$@;
+ QUIET_AR = @echo ' AR '$@;
+ QUIET_LINK = @echo ' LINK '$@;
+ QUIET_MKDIR = @echo ' MKDIR '$@;
+ QUIET_GEN = @echo ' GEN '$@;
+ QUIET_SUBDIR0 = +@subdir=
+ QUIET_SUBDIR1 = ;$(NO_SUBDIR) \
+ echo ' SUBDIR '$$subdir; \
+ $(MAKE) $(PRINT_DIR) -C $$subdir
+ QUIET_FLEX = @echo ' FLEX '$@;
+ QUIET_BISON = @echo ' BISON '$@;
+
+ descend = \
+ +@echo ' DESCEND '$(1); \
+ mkdir -p $(OUTPUT)$(1) && \
+ $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
+
+ QUIET_CLEAN = @printf ' CLEAN %s\n' $1;
+ QUIET_INSTALL = @printf ' INSTALL %s\n' $1;
+ endif
+endif