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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. |
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.. | ||
aclocal.m4 | ||
ChangeLog-2021 | ||
configure | ||
configure.ac | ||
cp1.c | ||
cp1.h | ||
dsp2.igen | ||
dsp.c | ||
dsp.igen | ||
dv-tx3904cpu.c | ||
dv-tx3904irc.c | ||
dv-tx3904sio.c | ||
dv-tx3904tmr.c | ||
interp.c | ||
local.mk | ||
m16.dc | ||
m16.igen | ||
m16e.igen | ||
m16run.c | ||
Makefile.in | ||
mdmx.c | ||
mdmx.igen | ||
micromips16.dc | ||
micromips.dc | ||
micromips.igen | ||
micromipsdsp.igen | ||
micromipsrun.c | ||
mips3d.igen | ||
mips3264r2.igen | ||
mips3264r6.igen | ||
mips.dc | ||
mips.igen | ||
sb1.igen | ||
sim-main.c | ||
sim-main.h | ||
smartmips.igen | ||
tx.igen | ||
vr.igen |