OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

Makefile: fix use of -j without an argument

Browse Source 
Our Makefile massages the given make arguments to invoke ninja
accordingly. One key difference is that ninja will parallelize by
default, whereas make only does so with -j<n> or -j. The make man page
says that "if the -j option is given without an argument, make will not
limit the number of jobs that can run simultaneously". We use to support
that by replacing -j with "" (empty string) when calling ninja, so that
it would do its auto-parallelization based on the number of CPU cores.

This was accidentally broken at d1ce2cc95b (Makefile: preserve
--jobserver-auth argument when calling ninja, 2024-04-02),
causing `make -j` to fail:

$ make -j V=1
  /usr/bin/ninja -v   -j -d keepdepfile all | cat
  make  -C contrib/plugins/ V="1" TARGET_DIR="contrib/plugins/" all
  ninja: fatal: invalid -j parameter
  make: *** [Makefile:161: run-ninja] Error

Let's fix that and indent the touched code for better readability.

Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Fixes: d1ce2cc95b ("Makefile: preserve --jobserver-auth argument when calling ninja", 2024-04-02)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Matheus Tavares Bernardino 2024-04-12 09:58:38 +02:00 committed by Paolo Bonzini
parent 02e16ab9f4
commit f9a7c4478c
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Makefile
View File

@ -141,8 +141,13 @@ MAKE.n = $(findstring n,$(firstword $(filter-out --%,$(MAKEFLAGS))))
MAKE.k = $(findstring k,$(firstword $(filter-out --%,$(MAKEFLAGS))))
MAKE.q = $(findstring q,$(firstword $(filter-out --%,$(MAKEFLAGS))))
MAKE.nq = $(if $(word 2, $(MAKE.n) $(MAKE.q)),nq)
NINJAFLAGS = $(if $V,-v) $(if $(MAKE.n), -n) $(if $(MAKE.k), -k0) \
$(or $(filter -l% -j%, $(MAKEFLAGS)), $(if $(filter --jobserver-auth=%, $(MAKEFLAGS)),, -j1)) \
NINJAFLAGS = \
$(if $V,-v) \
$(if $(MAKE.n), -n) \
$(if $(MAKE.k), -k0) \
$(filter-out -j, \
$(or $(filter -l% -j%, $(MAKEFLAGS)), \
$(if $(filter --jobserver-auth=%, $(MAKEFLAGS)),, -j1))) \
-d keepdepfile
ninja-cmd-goals = $(or $(MAKECMDGOALS), all)
ninja-cmd-goals += $(foreach g, $(MAKECMDGOALS), $(.ninja-goals.$g))