make use of make variable CURDIR instead of calling pwd

make already provides the current working directory in a variable, so make
use of it instead of forking a shell. Also replace usage of PWD by
CURDIR. PWD is provided by most shells, but not all, so this makes the
build system more robust.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
This commit is contained in:
Uwe Kleine-König 2016-11-22 09:30:26 +01:00 committed by Michal Marek
parent 76bee23411
commit e19b7cee02
14 changed files with 15 additions and 19 deletions

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@ -119,10 +119,10 @@ CLANG ?= clang
# Trick to allow make to be run from this directory
all:
$(MAKE) -C ../../ $$PWD/
$(MAKE) -C ../../ $(CURDIR)/
clean:
$(MAKE) -C ../../ M=$$PWD clean
$(MAKE) -C ../../ M=$(CURDIR) clean
@rm -f *~
# Verify LLVM compiler tools are available and bpf target is supported by llc

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@ -13,4 +13,4 @@ HOSTCFLAGS_ucon.o += -I$(objtree)/usr/include
all: modules
modules clean:
$(MAKE) -C ../.. SUBDIRS=$(PWD) $@
$(MAKE) -C ../.. SUBDIRS=$(CURDIR) $@

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@ -1,5 +1,5 @@
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif

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@ -3,7 +3,7 @@ include ../scripts/Makefile.include
bindir ?= /usr/bin
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif

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@ -2,7 +2,7 @@ include ../../scripts/Makefile.include
include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))

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@ -7,7 +7,7 @@ BPF_EXTRAVERSION = 1
MAKEFLAGS += --no-print-directory
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))

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@ -50,7 +50,7 @@ ifndef VERBOSE
endif
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))

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@ -2,7 +2,7 @@ include ../../scripts/Makefile.include
include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))

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@ -86,7 +86,7 @@ ifndef VERBOSE
endif
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))

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@ -11,12 +11,12 @@ LD = ld
AR = ar
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/
LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(PWD)/)
LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/)
LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a
OBJTOOL := $(OUTPUT)objtool

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@ -94,7 +94,7 @@ LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif

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@ -42,7 +42,7 @@ LC_NUMERIC=C
export LC_COLLATE LC_NUMERIC
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif

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@ -108,9 +108,6 @@ MKDIR = mkdir
# Now we set up the build system
#
# set up PWD so that older versions of make will work with our build.
PWD = $(shell pwd)
GMO_FILES = ${shell for HLANG in ${LANGUAGES}; do echo $(OUTPUT)po/$$HLANG.gmo; done;}
export CROSS CC AR STRIP RANLIB CFLAGS LDFLAGS LIB_OBJS

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@ -1,7 +1,6 @@
obj-m :=
KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
KMISC := /lib/modules/$(shell uname -r)/cpufrequtils/
ifeq ("$(CONFIG_X86_TSC)", "y")
@ -9,7 +8,7 @@ ifeq ("$(CONFIG_X86_TSC)", "y")
endif
default:
$(MAKE) -C $(KDIR) M=$(PWD)
$(MAKE) -C $(KDIR) M=$(CURDIR)
clean:
- rm -rf *.o *.ko .tmp-versions .*.cmd .*.mod.* *.mod.c