[PATCH 1/4] kbuild: remove redundant target cleaning on failure

From: Masahiro Yamada
Date: Mon Dec 31 2018 - 03:26:43 EST

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Since commit 9c2af1c7377a ("kbuild: add .DELETE_ON_ERROR special
target"), the target file is automatically deleted on failure.

The boilerplate code

... || { rm -f $@; false; }

is unneeded.

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

arch/arm/boot/Makefile | 2 +-
arch/arm/boot/compressed/Makefile | 2 +-
arch/arm/tools/Makefile | 3 +--
arch/sh/tools/Makefile | 2 +-
arch/x86/boot/compressed/Makefile | 2 +-
arch/x86/lib/Makefile | 2 +-
certs/Makefile | 2 +-
lib/raid6/Makefile | 5 ++---
scripts/Makefile.lib | 21 +++++++--------------
9 files changed, 16 insertions(+), 25 deletions(-)

diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index a3af4dc..0b3cd7a 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -32,7 +32,7 @@ targets := Image zImage xipImage bootpImage uImage
ifeq ($(CONFIG_XIP_KERNEL),y)

cmd_deflate_xip_data = $(CONFIG_SHELL) -c \
- '$(srctree)/$(src)/deflate_xip_data.sh $< $@ || { rm -f $@; false; }'
+ '$(srctree)/$(src)/deflate_xip_data.sh $< $@'

ifeq ($(CONFIG_XIP_DEFLATED_DATA),y)
quiet_cmd_mkxip = XIPZ $@
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 01bf258..6114ae6 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -170,7 +170,7 @@ check_for_bad_syms = \
bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] $.*$/\1/p') && \
[ -z "$$bad_syms" ] || \
( echo "following symbols must have non local/private scope:" >&2; \
- echo "$$bad_syms" >&2; rm -f $@; false )
+ echo "$$bad_syms" >&2; false )

check_for_multiple_zreladdr = \
if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index ddb89a7..27d8beb 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -35,8 +35,7 @@ _dummy := $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)') \

quiet_cmd_gen_mach = GEN $@
cmd_gen_mach = mkdir -p $(dir $@) && \
- $(AWK) -f $(filter-out $(PHONY),$^) > $@ || \
- { rm -f $@; /bin/false; }
+ $(AWK) -f $(filter-out $(PHONY),$^) > $@

$(kapi)/mach-types.h: $(src)/gen-mach-types $(src)/mach-types FORCE
$(call if_changed,gen_mach)
diff --git a/arch/sh/tools/Makefile b/arch/sh/tools/Makefile
index 2082af1..e5ba31c 100644
--- a/arch/sh/tools/Makefile
+++ b/arch/sh/tools/Makefile
@@ -13,4 +13,4 @@
include/generated/machtypes.h: $(src)/gen-mach-types $(src)/mach-types
@echo ' Generating $@'
$(Q)mkdir -p $(dir $@)
- $(Q)LC_ALL=C $(AWK) -f $^ > $@ || { rm -f $@; /bin/false; }
+ $(Q)LC_ALL=C $(AWK) -f $^ > $@
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 466f66c..f0515ac8 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -151,7 +151,7 @@ suffix-$(CONFIG_KERNEL_LZO) := lzo
suffix-$(CONFIG_KERNEL_LZ4) := lz4

quiet_cmd_mkpiggy = MKPIGGY $@
- cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
+ cmd_mkpiggy = $(obj)/mkpiggy $< > $@

targets += piggy.S
$(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 25a972c..89d0f37 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -9,7 +9,7 @@ KCOV_INSTRUMENT_delay.o := n
inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
inat_tables_maps = $(srctree)/arch/x86/lib/x86-opcode-map.txt
quiet_cmd_inat_tables = GEN $@
- cmd_inat_tables = $(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
+ cmd_inat_tables = $(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@

$(obj)/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
$(call cmd,inat_tables)
diff --git a/certs/Makefile b/certs/Makefile
index 5d0999b..f4c25b6 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -22,7 +22,7 @@ $(obj)/system_certificates.o: $(obj)/x509_certificate_list
AFLAGS_system_certificates.o := -I$(srctree)

quiet_cmd_extract_certs = EXTRACT_CERTS $(patsubst "%",%,$(2))
- cmd_extract_certs = scripts/extract-cert $(2) $@ || ( rm $@; exit 1)
+ cmd_extract_certs = scripts/extract-cert $(2) $@

targets += x509_certificate_list
$(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index 7ed43ea..4e90d44 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -13,8 +13,7 @@ raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs-y += mktables

quiet_cmd_unroll = UNROLL $@
- cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) \
- < $< > $@ || ( rm -f $@ && exit 1 )
+ cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) < $< > $@

ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
@@ -160,7 +159,7 @@ $(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)

quiet_cmd_mktable = TABLE $@
- cmd_mktable = $(obj)/mktables > $@ || ( rm -f $@ && exit 1 )
+ cmd_mktable = $(obj)/mktables > $@

targets += tables.c
$(obj)/tables.c: $(obj)/mktables FORCE
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index d10c61e..390957f 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -242,8 +242,7 @@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
# ---------------------------------------------------------------------------

quiet_cmd_gzip = GZIP $@
-cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
- (rm -f $@ ; false)
+ cmd_gzip = cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@

# DTC
# ---------------------------------------------------------------------------
@@ -336,26 +335,22 @@ printf "%08x\n" $$dec_size | \

quiet_cmd_bzip2 = BZIP2 $@
cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
- bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
- (rm -f $@ ; false)
+ bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@

# Lzma
# ---------------------------------------------------------------------------

quiet_cmd_lzma = LZMA $@
cmd_lzma = (cat $(filter-out FORCE,$^) | \
- lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
- (rm -f $@ ; false)
+ lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@

quiet_cmd_lzo = LZO $@
cmd_lzo = (cat $(filter-out FORCE,$^) | \
- lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
- (rm -f $@ ; false)
+ lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@

quiet_cmd_lz4 = LZ4 $@
cmd_lz4 = (cat $(filter-out FORCE,$^) | \
- lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
- (rm -f $@ ; false)
+ lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@

# U-Boot mkimage
# ---------------------------------------------------------------------------
@@ -399,13 +394,11 @@ quiet_cmd_uimage = UIMAGE $@
quiet_cmd_xzkern = XZKERN $@
cmd_xzkern = (cat $(filter-out FORCE,$^) | \
sh $(srctree)/scripts/xz_wrap.sh && \
- $(call size_append, $(filter-out FORCE,$^))) > $@ || \
- (rm -f $@ ; false)
+ $(call size_append, $(filter-out FORCE,$^))) > $@

quiet_cmd_xzmisc = XZMISC $@
cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
- xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
- (rm -f $@ ; false)
+ xz --check=crc32 --lzma2=dict=1MiB) > $@

# ASM offsets
# ---------------------------------------------------------------------------
--
2.7.4

Next message: Andreas Kemnade: "Re: [PATCH v2 2/3] clk: ti: check clock type before doing autoidle ops"
Previous message: Masahiro Yamada: "[PATCH 3/4] kbuild: remove unnecessary in-subshell execution"
Next in thread: Masahiro Yamada: "[PATCH 4/4] kbuild: make LINUX_VERSION_CODE in <linux/version.h> more readable"
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