Implement unionized sections in RGBLINK

test/link/section-union/a.asm

@@ -0,0 +1,21 @@
+SECTION UNION "a", WRAM0
+	ds 10
+a1:
+
+SECTION UNION "b", WRAMX,ALIGN[4]
+banked::
+	ds 10
+b1:
+
+SECTION UNION "c", HRAM[$FFC0]
+	ds 5
+c1::
+
+
+SECTION "output 1", ROM0
+	dw a1,a2 ; $C00A, $C02A
+	dw b1,b2 ; $DABA, $DAB2
+	dw c1,c2 ; $FFC5, $FFC5
+
+SECTION "output 3", ROM0
+	db BANK(banked)

test/link/section-union/b.asm

@@ -0,0 +1,18 @@
+SECTION UNION "a", WRAM0
+a1: ; This is here to check that the two `a1` don't conflict
+	ds 42
+a2::
+
+SECTION UNION "b", WRAMX[$DAB0]
+	ds 2
+b2::
+
+SECTION UNION "c", HRAM[$FFC0]
+b1: ; Same but in different sections now
+	ds 5
+c2::
+
+SECTION "output 2", ROM0
+	dw a1,a2
+	dw b1,b2
+	dw c1,c2

test/link/section-union/script.link

@@ -0,0 +1,9 @@
+ROM0
+	"output 1"
+	"output 2"
+	"output 3"
+WRAM0
+	"a" ; $C000
+WRAMX 1
+	ORG $DAB0
+	"b"

test/link/test.sh

@@ -71,12 +71,20 @@ for i in *.asm; do
 	fi
 done
 
-# This test does its own thing
+# These tests do their own thing
+
 $RGBASM -o $otemp high-low/a.asm
 $RGBLINK -o $gbtemp $otemp
 $RGBASM -o $otemp high-low/b.asm
 $RGBLINK -o $gbtemp2 $otemp
-i="high-low.asm" tryDiff $gbtemp $gbtemp2
+i="high-low.asm" tryCmp $gbtemp $gbtemp2
+rc=$(($? || $rc))
+
+$RGBASM -o $otemp section-union/a.asm
+$RGBASM -o $gbtemp2 section-union/b.asm
+$RGBLINK -o $gbtemp -l section-union/script.link $otemp $gbtemp2
+dd if=$gbtemp count=1 bs=$(printf %s $(wc -c < section-union/ref.out.bin)) > $otemp 2>/dev/null
+i="section-union.asm" tryCmp section-union/ref.out.bin $otemp
 rc=$(($? || $rc))
 
 rm -f $otemp $gbtemp $gbtemp2 $outtemp