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Make it easy to change the number of CPUs

This commit is contained in:
Austin Clements 2010-09-01 02:14:35 -04:00
parent b0751a3e9b
commit 41c4bbb505
1 changed files with 4 additions and 1 deletions
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5
Makefile
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@ -179,7 +179,10 @@ GDBPORT = $(shell expr `id -u` % 5000 + 25000)
QEMUGDB = $(shell if $(QEMU) -help | grep -q '^-gdb'; \
then echo "-gdb tcp::$(GDBPORT)"; \
else echo "-s -p $(GDBPORT)"; fi)
QEMUOPTS = -smp 2 -hdb fs.img xv6.img
ifndef CPUS
CPUS := 2
endif
QEMUOPTS = -hdb fs.img xv6.img -smp $(CPUS)
qemu: fs.img xv6.img
$(QEMU) -serial mon:stdio $(QEMUOPTS)