The patch titled
kbuild: actually delete the as-instr/ld-option tmp file
has been removed from the -mm tree. Its filename was
actually-delete-the-as-instr-ld-option-tmp-file.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
Subject: kbuild: actually delete the as-instr/ld-option tmp file
From: Horst Schirmeier <horst@xxxxxxxxxxxxxx>
I noticed another problem in the
kbuild-dont-put-temp-files-in-the-source-tree.patch: A "normal" make
variable is being expanded recursively on each use, therefore multiple uses
of $(ASTMP) yield different temporary files. So $(AS) -o $(ASTMP) writes
to a file other than the one rm -f $(ASTMP) deletes, leaving behind the
first file in /tmp.
Using "simply expanded variables" (by assigning the mktemp output with
:= instead of ==) can be problematic, as parallel make processes would
all write to and delete the very same tmp file, so I chose to fix this
by storing the $(ASTMP) output in a shell variable and reusing it.
Signed-off-by: Horst Schirmeier <horst@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
scripts/Kbuild.include | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff -puN scripts/Kbuild.include~actually-delete-the-as-instr-ld-option-tmp-file scripts/Kbuild.include
--- a/scripts/Kbuild.include~actually-delete-the-as-instr-ld-option-tmp-file
+++ a/scripts/Kbuild.include
@@ -67,9 +67,10 @@ as-option = $(shell if $(CC) $(CFLAGS) $
# Usage: cflags-y += $(call as-instr, instr, option1, option2)
ASTMP = $(shell mktemp $${TMPDIR:-/tmp}/asXXXXXX)
-as-instr = $(shell if echo -e "$(1)" | $(AS) >/dev/null 2>&1 -W -Z -o $(ASTMP) ; \
+as-instr = $(shell ASTMP=$(ASTMP); \
+ if echo -e "$(1)" | $(AS) >/dev/null 2>&1 -W -Z -o $$ASTMP ; \
then echo "$(2)"; else echo "$(3)"; fi; \
- rm -f $(ASTMP))
+ rm -f $$ASTMP)
# cc-option
# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
@@ -99,10 +100,10 @@ cc-ifversion = $(shell if [ $(call cc-ve
# ld-option
# Usage: ldflags += $(call ld-option, -Wl$(comma)--hash-style=both)
LDTMP = $(shell mktemp $${TMPDIR:-/tmp}/ldXXXXXX)
-ld-option = $(shell if $(CC) $(1) \
- -nostdlib -o $(LDTMP) -xc /dev/null \
+ld-option = $(shell LDTMP=$(LDTMP); \
+ if $(CC) $(1) -nostdlib -o $$LDTMP -xc /dev/null \
> /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi; \
- rm -f $(LDTMP))
+ rm -f $$LDTMP)
###
# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.build obj=
_
Patches currently in -mm which might be from horst@xxxxxxxxxxxxxx are
actually-delete-the-as-instr-ld-option-tmp-file.patch
-
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