19e4a6648SBorislav Petkovifneq ($(O),) 2bf35182fSDavid Howellsifeq ($(origin O), command line) 3c883122aSSteven Rostedt dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),) 4c883122aSSteven Rostedt ABSOLUTE_O := $(shell cd $(O) ; pwd) 5bf35182fSDavid Howells OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/) 6c883122aSSteven Rostedt COMMAND_O := O=$(ABSOLUTE_O) 7bf35182fSDavid Howellsifeq ($(objtree),) 8bf35182fSDavid Howells objtree := $(O) 9bf35182fSDavid Howellsendif 1098d89bfdSBorislav Petkovendif 119e4a6648SBorislav Petkovendif 1298d89bfdSBorislav Petkov 1398d89bfdSBorislav Petkov# check that the output directory actually exists 149e4a6648SBorislav Petkovifneq ($(OUTPUT),) 1598d89bfdSBorislav PetkovOUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) 1698d89bfdSBorislav Petkov$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) 1798d89bfdSBorislav Petkovendif 1898d89bfdSBorislav Petkov 1998d89bfdSBorislav Petkov# 2098d89bfdSBorislav Petkov# Include saner warnings here, which can catch bugs: 2198d89bfdSBorislav Petkov# 22d8caf3ebSBorislav PetkovEXTRA_WARNINGS := -Wbad-function-cast 23d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wdeclaration-after-statement 24d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wformat-security 25d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wformat-y2k 26d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Winit-self 27d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wmissing-declarations 28d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wmissing-prototypes 29d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wnested-externs 30d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wno-system-headers 31d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wold-style-definition 32d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wpacked 33d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wredundant-decls 34d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wshadow 35d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wstrict-aliasing=3 36d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wstrict-prototypes 37d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wswitch-default 38d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wswitch-enum 39d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wundef 40d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wwrite-strings 41d8caf3ebSBorislav PetkovEXTRA_WARNINGS += -Wformat 4298d89bfdSBorislav Petkov 4398d89bfdSBorislav Petkovifneq ($(findstring $(MAKEFLAGS), w),w) 4498d89bfdSBorislav PetkovPRINT_DIR = --no-print-directory 4598d89bfdSBorislav Petkovelse 4698d89bfdSBorislav PetkovNO_SUBDIR = : 4798d89bfdSBorislav Petkovendif 4898d89bfdSBorislav Petkov 49ca9dfc6cSDavid Howells# 50ca9dfc6cSDavid Howells# Define a callable command for descending to a new directory 51ca9dfc6cSDavid Howells# 52ca9dfc6cSDavid Howells# Call by doing: $(call descend,directory[,target]) 53ca9dfc6cSDavid Howells# 54ca9dfc6cSDavid Howellsdescend = \ 55bf35182fSDavid Howells +mkdir -p $(OUTPUT)$(1) && \ 562b73f65dSDavid Howells $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) 57ca9dfc6cSDavid Howells 58bf35182fSDavid HowellsQUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir 5998d89bfdSBorislav PetkovQUIET_SUBDIR1 = 6098d89bfdSBorislav Petkov 6198d89bfdSBorislav Petkovifneq ($(findstring $(MAKEFLAGS),s),s) 62*5125bc22SRobert Richterifneq ($(V),1) 6398d89bfdSBorislav Petkov QUIET_CC = @echo ' ' CC $@; 6498d89bfdSBorislav Petkov QUIET_AR = @echo ' ' AR $@; 6598d89bfdSBorislav Petkov QUIET_LINK = @echo ' ' LINK $@; 6698d89bfdSBorislav Petkov QUIET_MKDIR = @echo ' ' MKDIR $@; 6798d89bfdSBorislav Petkov QUIET_GEN = @echo ' ' GEN $@; 6898d89bfdSBorislav Petkov QUIET_SUBDIR0 = +@subdir= 6998d89bfdSBorislav Petkov QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \ 7098d89bfdSBorislav Petkov $(MAKE) $(PRINT_DIR) -C $$subdir 7198d89bfdSBorislav Petkov QUIET_FLEX = @echo ' ' FLEX $@; 7298d89bfdSBorislav Petkov QUIET_BISON = @echo ' ' BISON $@; 73bf35182fSDavid Howells 74bf35182fSDavid Howells descend = \ 75a50e4333SBorislav Petkov +@echo ' ' DESCEND $(1); \ 76bf35182fSDavid Howells mkdir -p $(OUTPUT)$(1) && \ 772b73f65dSDavid Howells $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) 7898d89bfdSBorislav Petkovendif 7998d89bfdSBorislav Petkovendif 80