diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-10-02 10:07:28 +0200 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-10-07 13:08:02 +0200 |
| commit | 028568d84da3cfca49f5f846eeeef01441d70451 (patch) | |
| tree | 6ffc6471517542ddb3d2470ccdc98fd93ac27fcc /tools/scripts | |
| parent | Linux 4.14-rc3 (diff) | |
| download | linux-028568d84da3cfca49f5f846eeeef01441d70451.tar.xz linux-028568d84da3cfca49f5f846eeeef01441d70451.zip | |
kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)
I thought commit 8e9b46679923 ("kbuild: use $(abspath ...) instead of
$(shell cd ... && /bin/pwd)") was a safe conversion, but it changed
the behavior.
$(abspath ...) / $(realpath ...) does not expand shell special
characters, such as '~'.
Here is a simple Makefile example:
---------------->8----------------
$(info /bin/pwd: $(shell cd ~/; /bin/pwd))
$(info abspath: $(abspath ~/))
$(info realpath: $(realpath ~/))
all:
@:
---------------->8----------------
$ make
/bin/pwd: /home/masahiro
abspath: /home/masahiro/workspace/~
realpath:
This can be a real problem if 'make O=~/foo' is invoked from another
Makefile or primitive shell like dash.
This commit partially reverts 8e9b46679923.
Fixes: 8e9b46679923 ("kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)")
Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Julien Grall <julien.grall@arm.com>
Diffstat (limited to 'tools/scripts')
| -rw-r--r-- | tools/scripts/Makefile.include | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 9dc8f078a83c..1e8b6116ba3c 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -1,7 +1,7 @@ ifneq ($(O),) ifeq ($(origin O), command line) - ABSOLUTE_O := $(realpath $(O)) - dummy := $(if $(ABSOLUTE_O),,$(error O=$(O) does not exist)) + dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),) + ABSOLUTE_O := $(shell cd $(O) ; pwd) OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/) COMMAND_O := O=$(ABSOLUTE_O) ifeq ($(objtree),) @@ -12,7 +12,7 @@ endif # check that the output directory actually exists ifneq ($(OUTPUT),) -OUTDIR := $(realpath $(OUTPUT)) +OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) endif |