1 files changed, 79 insertions, 0 deletions
diff --git a/libgcc/Makefile b/libgcc/Makefile
new file mode 100644
index 0000000..ee9757f
--- /dev/null
+++ b/libgcc/Makefile
@@ -0,0 +1,79 @@
+CC1 = ../gcc/agbcc
+CPP = cpp
+AS = $(DEVKITARM)/bin/arm-none-eabi-as
+AR = ar
+
+libgcc.a: libgcc1.a libgcc2.a fp-bit.o dp-bit.o
+	$(AR) -x libgcc1.a
+	$(AR) -x libgcc2.a
+	$(AR) -rc libgcc.a *.o
+
+LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX
+
+LIB2FUNCS = _muldi3 _divdi3 _moddi3 _udivdi3 _umoddi3 _negdi2 \
+_lshrdi3 _ashldi3 _ashrdi3 _ffsdi2 \
+_udiv_w_sdiv _udivmoddi4 _cmpdi2 _ucmpdi2 _floatdidf _floatdisf \
+_fixunsdfsi _fixunssfsi _fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi
+
+libgcc1.a: lib1thumb.asm
+	-rm -f tmplibgcc1.a
+# Actually build it in tmplibgcc1.a, then rename at end,
+# so that libgcc1.a itself remains nonexistent if compilation is aborted.
+	set -e
+	for name in $(LIB1ASMFUNCS); \
+	do \
+	  echo $${name}; \
+	  $(CPP) -DL$${name} -x assembler-with-cpp -o $${name}.s lib1thumb.asm; \
+	  $(AS) -mcpu=arm7tdmi -o $${name}.o $${name}.s; \
+	  rm -f $${name}.s; \
+	  $(AR) -rc tmplibgcc1.a $${name}.o; \
+	  rm -f $${name}.o; \
+	done
+	mv tmplibgcc1.a libgcc1.a
+
+libgcc2.a: libgcc2.c longlong.h
+	-rm -f tmplibgcc2.a
+# Actually build it in tmplibgcc2.a, then rename at end,
+# so that libgcc2.a itself remains nonexistent if compilation is aborted.
+	set -e
+	for name in $(LIB2FUNCS); \
+	do \
+	  echo $${name}; \
+	  $(CPP) -I ../ginclude -nostdinc -DL$${name} -o $${name}.i libgcc2.c; \
+	  $(CC1) -O2 $${name}.i; \
+	  rm -f $${name}.i; \
+	  $(AS) -mcpu=arm7tdmi -o $${name}.o $${name}.s; \
+	  rm -f $${name}.s; \
+	  $(AR) -rc tmplibgcc2.a $${name}.o; \
+	  rm -f $${name}.o; \
+	done
+	mv tmplibgcc2.a libgcc2.a
+
+fp-bit.o: fp-bit.c
+	$(CPP) -I ../ginclude -nostdinc -o fp-bit.i fp-bit.c
+	$(CC1) -O2 fp-bit.i
+	rm -f fp-bit.i
+	$(AS) -mcpu=arm7tdmi -o fp-bit.o fp-bit.s
+	rm -f fp-bit.s
+
+dp-bit.o: dp-bit.c
+	$(CPP) -I ../ginclude -nostdinc -o dp-bit.i dp-bit.c
+	$(CC1) -O2 dp-bit.i
+	rm -f dp-bit.i
+	$(AS) -mcpu=arm7tdmi -o dp-bit.o dp-bit.s
+	rm -f dp-bit.s
+
+fp-bit.c: fp-bit-base.c
+	echo '#define FLOAT' > fp-bit.c
+	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
+	cat fp-bit-base.c >> fp-bit.c
+
+dp-bit.c: fp-bit-base.c
+	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> dp-bit.c
+	echo '#define FLOAT_WORD_ORDER_MISMATCH' >> dp-bit.c
+	cat fp-bit-base.c >> dp-bit.c
+
+.PHONY: clean
+
+clean:
+	rm -f *.o *.a *.s *.i