From 3835f82183eab8b67ddda6b32c127859a546c82d Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 21 Jan 2006 12:03:09 +0100 Subject: kconfig: fix /dev/null breakage While running "make menuconfig" and "make mrproper" some people experienced that /dev/null suddenly changed permissions or suddenly became a regular file. The main reason was that /dev/null was used as output to gcc in the check-lxdialog.sh script and gcc did some strange things with the output file; in this case /dev/null when it errorred out. Following patch implements a suggestion from Bryan O'Sullivan to use gcc -print-file-name=libxxx.so. Also the Makefile is adjusted to not resolve value of HOST_EXTRACFLAGS and HOST_LOADLIBES until they are actually used. This prevents us from calling gcc when running make *clean/mrproper Thanks to Eyal Lebedinsky and Jean Delvare for the first error reports. Signed-off-by: Sam Ravnborg --- --- scripts/kconfig/lxdialog/Makefile | 7 +++++-- scripts/kconfig/lxdialog/check-lxdialog.sh | 14 +++++++++----- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/scripts/kconfig/lxdialog/Makefile b/scripts/kconfig/lxdialog/Makefile index fae3e29fc924..bbf4887cff74 100644 --- a/scripts/kconfig/lxdialog/Makefile +++ b/scripts/kconfig/lxdialog/Makefile @@ -2,8 +2,11 @@ # check-lxdialog := $(srctree)/$(src)/check-lxdialog.sh -HOST_EXTRACFLAGS:= $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) -HOST_LOADLIBES := $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) + +# Use reursively expanded variables so we do not call gcc unless +# we really need to do so. (Do not call gcc as part of make mrproper) +HOST_EXTRACFLAGS = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) +HOST_LOADLIBES = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags $(HOSTCC)) HOST_EXTRACFLAGS += -DLOCALE diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh index 448e353923f3..120d624e672c 100644 --- a/scripts/kconfig/lxdialog/check-lxdialog.sh +++ b/scripts/kconfig/lxdialog/check-lxdialog.sh @@ -4,17 +4,17 @@ # What library to link ldflags() { - echo "main() {}" | $cc -lncursesw -xc - -o /dev/null 2> /dev/null + $cc -print-file-name=libncursesw.so | grep -q / if [ $? -eq 0 ]; then echo '-lncursesw' exit fi - echo "main() {}" | $cc -lncurses -xc - -o /dev/null 2> /dev/null + $cc -print-file-name=libncurses.so | grep -q / if [ $? -eq 0 ]; then echo '-lncurses' exit fi - echo "main() {}" | $cc -lcurses -xc - -o /dev/null 2> /dev/null + $cc -print-file-name=libcurses.so | grep -q / if [ $? -eq 0 ]; then echo '-lcurses' exit @@ -36,10 +36,13 @@ ccflags() fi } -compiler="" +# Temp file, try to clean up after us +tmp=.lxdialog.tmp +trap "rm -f $tmp" 0 1 2 3 15 + # Check if we can link to ncurses check() { - echo "main() {}" | $cc -xc - -o /dev/null 2> /dev/null + echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null if [ $? != 0 ]; then echo " *** Unable to find the ncurses libraries." 1>&2 echo " *** make menuconfig require the ncurses libraries" 1>&2 @@ -59,6 +62,7 @@ if [ $# == 0 ]; then exit 1 fi +cc="" case "$1" in "-check") shift -- cgit v1.2.3 From aa6ba2faec346a3f59bf4130060108e6433ad907 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 19 Jan 2006 19:03:15 +0000 Subject: cris: asm-offsets related build failure fallout from "kbuild: cris use generic asm-offsets.h support" - symlink target was wrong Signed-off-by: Al Viro Signed-off-by: Sam Ravnborg --- arch/cris/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/cris/Makefile b/arch/cris/Makefile index ea65d585cf5e..ee114699ef8e 100644 --- a/arch/cris/Makefile +++ b/arch/cris/Makefile @@ -119,7 +119,7 @@ $(SRC_ARCH)/.links: @ln -sfn $(SRC_ARCH)/$(SARCH)/lib $(SRC_ARCH)/lib @ln -sfn $(SRC_ARCH)/$(SARCH) $(SRC_ARCH)/arch @ln -sfn $(SRC_ARCH)/$(SARCH)/vmlinux.lds.S $(SRC_ARCH)/kernel/vmlinux.lds.S - @ln -sfn $(SRC_ARCH)/$(SARCH)/asm-offsets.c $(SRC_ARCH)/kernel/asm-offsets.c + @ln -sfn $(SRC_ARCH)/$(SARCH)/kernel/asm-offsets.c $(SRC_ARCH)/kernel/asm-offsets.c @touch $@ # Create link to sub arch includes -- cgit v1.2.3 From 8c7f75d3257fe466b34abf290c8b177c106c3769 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sat, 21 Jan 2006 12:07:56 +0100 Subject: kbuild: fix build with O=.. .kernelrelease was saved in same directory as kernel source also with make O=... Make sure we kick in the normal logic to shift to the output directory when we build .kernelrelease after executing *config. Signed-off-by: Sam Ravnborg --- --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 252a659896f3..31bbc6ab3b8a 100644 --- a/Makefile +++ b/Makefile @@ -442,7 +442,7 @@ export KBUILD_DEFCONFIG config %config: scripts_basic outputmakefile FORCE $(Q)mkdir -p include/linux $(Q)$(MAKE) $(build)=scripts/kconfig $@ - $(Q)$(MAKE) .kernelrelease + $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease else # =========================================================================== -- cgit v1.2.3