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| author | Mike Frysinger <vapier@gentoo.org> | 2022-11-03 18:19:13 +0700 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2022-11-05 20:00:56 +0700 |
| commit | c0c25232da12f3985041cded1bb7e761d4d0cd1e (patch) | |
| tree | b1886508998af5eeda176ae1bedc71a016cf89a7 /sim/ppc/local.mk | |
| parent | 59d8576e4ff7e6467fab3ea894baa72c8400e22a (diff) | |
| download | binutils-gdb-c0c25232da12f3985041cded1bb7e761d4d0cd1e.tar.gz | |
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.
Diffstat (limited to 'sim/ppc/local.mk')
| -rw-r--r-- | sim/ppc/local.mk | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sim/ppc/local.mk b/sim/ppc/local.mk index 03e54fbe083..19a8a89ba47 100644 --- a/sim/ppc/local.mk +++ b/sim/ppc/local.mk @@ -15,5 +15,20 @@ ## You should have received a copy of the GNU General Public License ## along with this program. If not, see <http://www.gnu.org/licenses/>. +%C%_run_SOURCES = +%C%_run_LDADD = \ + %D%/main.o \ + %D%/libsim.a \ + $(SIM_COMMON_LIBS) + +%D%/psim$(EXEEXT): %D%/run$(EXEEXT) + $(AM_V_GEN)ln $< $@ 2>/dev/null || $(LN_S) $< $@ 2>/dev/null || cp -p $< $@ + +## Helper targets for running make from the top-level due to run's sis.o. +%D%/%.o: %D%/%.c | %D%/libsim.a $(SIM_ALL_RECURSIVE_DEPS) + $(MAKE) -C $(@D) $(@F) + +noinst_PROGRAMS += %D%/run %D%/psim + %C%docdir = $(docdir)/%C% %C%doc_DATA = %D%/BUGS %D%/INSTALL %D%/README %D%/RUN |