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 $(MAKEFLAGS), w),w) 4498d89bfdSBorislav PetkovPRINT_DIR = --no-print-directory 4598d89bfdSBorislav Petkovelse 4698d89bfdSBorislav PetkovNO_SUBDIR = : 4798d89bfdSBorislav Petkovendif 4898d89bfdSBorislav Petkov 49*e572d088SJosh Poimboeufifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 50*e572d088SJosh Poimboeufifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 51*e572d088SJosh Poimboeuf silent=1 52*e572d088SJosh Poimboeufendif 53*e572d088SJosh Poimboeufelse # make-3.8x 54*e572d088SJosh Poimboeufifneq ($(filter s% -s%,$(MAKEFLAGS)),) 55*e572d088SJosh Poimboeuf silent=1 56*e572d088SJosh Poimboeufendif 57*e572d088SJosh Poimboeufendif 58*e572d088SJosh Poimboeuf 59ca9dfc6cSDavid Howells# 60ca9dfc6cSDavid Howells# Define a callable command for descending to a new directory 61ca9dfc6cSDavid Howells# 62ca9dfc6cSDavid Howells# Call by doing: $(call descend,directory[,target]) 63ca9dfc6cSDavid Howells# 64ca9dfc6cSDavid Howellsdescend = \ 65bf35182fSDavid Howells +mkdir -p $(OUTPUT)$(1) && \ 662b73f65dSDavid Howells $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) 67ca9dfc6cSDavid Howells 68bf35182fSDavid HowellsQUIET_SUBDIR0 = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir 6998d89bfdSBorislav PetkovQUIET_SUBDIR1 = 7098d89bfdSBorislav Petkov 71*e572d088SJosh Poimboeufifneq ($(silent),1) 725125bc22SRobert Richter ifneq ($(V),1) 7365fb0992SIngo Molnar QUIET_CC = @echo ' CC '$@; 74bdebbacdSJiri Olsa QUIET_CC_FPIC = @echo ' CC FPIC '$@; 7565fb0992SIngo Molnar QUIET_AR = @echo ' AR '$@; 7665fb0992SIngo Molnar QUIET_LINK = @echo ' LINK '$@; 7765fb0992SIngo Molnar QUIET_MKDIR = @echo ' MKDIR '$@; 7865fb0992SIngo Molnar QUIET_GEN = @echo ' GEN '$@; 7998d89bfdSBorislav Petkov QUIET_SUBDIR0 = +@subdir= 8065fb0992SIngo Molnar QUIET_SUBDIR1 = ;$(NO_SUBDIR) \ 8165fb0992SIngo Molnar echo ' SUBDIR '$$subdir; \ 8298d89bfdSBorislav Petkov $(MAKE) $(PRINT_DIR) -C $$subdir 8365fb0992SIngo Molnar QUIET_FLEX = @echo ' FLEX '$@; 8465fb0992SIngo Molnar QUIET_BISON = @echo ' BISON '$@; 85bf35182fSDavid Howells 86bf35182fSDavid Howells descend = \ 8765fb0992SIngo Molnar +@echo ' DESCEND '$(1); \ 88bf35182fSDavid Howells mkdir -p $(OUTPUT)$(1) && \ 892b73f65dSDavid Howells $(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2) 90b7248defSJiri Olsa 91b7248defSJiri Olsa QUIET_CLEAN = @printf ' CLEAN %s\n' $1; 92b7248defSJiri Olsa QUIET_INSTALL = @printf ' INSTALL %s\n' $1; 9398d89bfdSBorislav Petkov endif 9498d89bfdSBorislav Petkovendif 95