1 files changed, 53 insertions, 0 deletions
diff --git a/usr/klibc/arch/alpha/Kbuild b/usr/klibc/arch/alpha/Kbuild
new file mode 100644
index 0000000..715a430
--- /dev/null
+++ b/usr/klibc/arch/alpha/Kbuild
@@ -0,0 +1,53 @@
+# -*- makefile -*-
+#
+# arch/alpha/Makefile.inc
+#
+# Special rules for this architecture.  Note that this is actually
+# included from the main Makefile, and that pathnames should be
+# accordingly.
+#
+
+always  := crt0.o
+targets := crt0.o
+klib-y := pipe.o sigaction.o setjmp.o sigreturn.o syscall.o sysdual.o
+
+# Special CFLAGS for the divide code
+DIVCFLAGS = $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \
+	-O3 -fomit-frame-pointer -fcall-saved-1 -fcall-saved-2 \
+	-fcall-saved-3 -fcall-saved-4 -fcall-saved-5 -fcall-saved-6 \
+	-fcall-saved-7 -fcall-saved-8 -ffixed-15 -fcall-saved-16 \
+	-fcall-saved-17 -fcall-saved-18 -fcall-saved-19 -fcall-saved-20 \
+	-fcall-saved-21 -fcall-saved-22 -ffixed-23 -fcall-saved-24 \
+	-ffixed-25 -ffixed-27
+
+div-objs := __divqu.o __remqu.o __divq.o __remq.o
+div-objs += __divlu.o __remlu.o __divl.o __reml.o
+klib-y += $(div-objs)
+
+quiet_cmd_regswap = REGSWAP $@
+      cmd_regswap = sed -e 's/\$$0\b/$$27/g'  -e 's/\$$24\b/$$99/g' \
+                        -e 's/\$$16\b/$$24/g' -e 's/\$$17\b/$$25/g' \
+                        -e 's/\$$26\b/$$23/g' -e 's/\$$99\b/$$16/g' < $< > $@
+
+# Use static pattern rule to avoid using a temporary file
+$(addprefix $(obj)/,$(div-objs:.o=.S)): $(obj)/%.S: $(obj)/%.ss
+	$(call if_changed,regswap)
+
+quiet_cmd_genss = DIV-CC  $@
+      cmd_genss = $(CC) $(DIVCFLAGS) $(FILE_CFLAGS) \
+                        $(call flags,KLIBCCPPFLAGS) \
+                        -DNAME=$(basename $(notdir $@)) -S -o $@ $<
+
+$(obj)/%.ss: $(obj)/divide.c
+	$(call if_changed,genss)
+
+$(obj)/__divqu.ss: FILE_CFLAGS := -DSIGNED=0 -DREM=0 -DBITS=64
+$(obj)/__remqu.ss: FILE_CFLAGS := -DSIGNED=0 -DREM=1 -DBITS=64
+$(obj)/__divq.ss:  FILE_CFLAGS := -DSIGNED=1 -DREM=0 -DBITS=64
+$(obj)/__remq.ss:  FILE_CFLAGS := -DSIGNED=1 -DREM=1 -DBITS=64
+$(obj)/__divlu.ss: FILE_CFLAGS := -DSIGNED=0 -DREM=0 -DBITS=32
+$(obj)/__remlu.ss: FILE_CFLAGS := -DSIGNED=0 -DREM=1 -DBITS=32
+$(obj)/__divl.ss:  FILE_CFLAGS := -DSIGNED=1 -DREM=0 -DBITS=32
+$(obj)/__reml.ss:  FILE_CFLAGS := -DSIGNED=1 -DREM=1 -DBITS=32
+
+targets     += $(div-objs:.o=.S) $(div-objs:.o=.ss)