Searched hist:"4 bf73588165ba7d32131a043775557a54b6e1db5" (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/ |
H A D | Makefile | 4bf73588165ba7d32131a043775557a54b6e1db5 Mon Dec 05 15:48:19 CST 2022 Dmitry Goncharov <dgoncharov@users.sf.net> kbuild: Port silent mode detection to future gnu make.
Port silent mode detection to the future (post make-4.4) versions of gnu make.
Makefile contains the following piece of make code to detect if option -s is specified on the command line.
ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
This code is executed by make at parse time and assumes that MAKEFLAGS does not contain command line variable definitions. Currently if the user defines a=s on the command line, then at build only time MAKEFLAGS contains " -- a=s". However, starting with commit dc2d963989b96161472b2cd38cef5d1f4851ea34 MAKEFLAGS contains command line definitions at both parse time and build time.
This '-s' detection code then confuses a command line variable definition which contains letter 's' with option -s.
$ # old make $ make net/wireless/ocb.o a=s CALL scripts/checksyscalls.sh DESCEND objtool $ # this a new make which defines makeflags at parse time $ ~/src/gmake/make/l64/make net/wireless/ocb.o a=s $
We can see here that the letter 's' from 'a=s' was confused with -s.
This patch checks for presence of -s using a method recommended by the make manual here https://www.gnu.org/software/make/manual/make.html#Testing-Flags.
Link: https://lists.gnu.org/archive/html/bug-make/2022-11/msg00190.html Reported-by: Jan Palus <jpalus+gnu@fastmail.com> Signed-off-by: Dmitry Goncharov <dgoncharov@users.sf.net> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
|