From c0c25232da12f3985041cded1bb7e761d4d0cd1e Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 3 Nov 2022 18:19:13 +0700 Subject: sim: run: move linking into top-level Automake will run each subdir individually before moving on to the next one. This means that the linking phase, a single threaded process, will not run in parallel with anything else. When we have to link ~32 ports, that's 32 link steps that don't take advantage of parallel systems. On my really old 4-core system, this cuts a multi-target build from ~60 sec to ~30 sec. We eventually want to move all compile+link steps to this common dir anyways, so might as well move linking now for a nice speedup. We use noinst_PROGRAMS instead of bin_PROGRAMS because we're taking care of the install ourselves rather than letting automake process it. --- sim/m32c/local.mk | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'sim/m32c') diff --git a/sim/m32c/local.mk b/sim/m32c/local.mk index 3ec947a..efdf110 100644 --- a/sim/m32c/local.mk +++ b/sim/m32c/local.mk @@ -16,6 +16,18 @@ ## You should have received a copy of the GNU General Public License ## along with this program. If not, see . +%C%_run_SOURCES = +%C%_run_LDADD = \ + %D%/main.o \ + %D%/libsim.a \ + $(SIM_COMMON_LIBS) + +noinst_PROGRAMS += %D%/run + +## Helper targets for running make from the top-level due to run's main.o. +%D%/%.o: %D%/%.c | %D%/libsim.a $(SIM_ALL_RECURSIVE_DEPS) + $(MAKE) -C $(@D) $(@F) + %C%_BUILD_OUTPUTS = \ %D%/opc2c$(EXEEXT) \ %D%/m32c.c \ -- cgit v1.1