From 638d27b42548309fbde9fbe479fb3d59451127a2 Mon Sep 17 00:00:00 2001
From: Matteias Collet <matteias.collet@bluewin.ch>
Date: Sun, 11 Dec 2022 00:02:56 +0000
Subject: [PATCH] add binary padding

---
 Makefile      | 5 ++---
 include/gcn.h | 8 ++++----
 sms.ld        | 2 +-
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index dd75734..da996ac 100644
--- a/Makefile
+++ b/Makefile
@@ -6,14 +6,13 @@ ASFLAGS := -mregnames -mgekko
 
 OD := powerpc-eabi-objdump
 ODFLAGS := -EB -D -b binary -m powerpc:750 -M gekko -a -p -h -F --full-content
-
 ODASMFLAGS := -EB -D -b binary -m powerpc:750 -M gekko --no-show-raw-insn --no-addresses
 
 LD := powerpc-eabi-ld
 LDFLAGS := --unresolved-symbols=ignore-in-object-files --enable-non-contiguous-regions -EB --nmagic
 
 OBJCOPY := powerpc-eabi-objcopy
-PYTHON := python3
+OBJCOPYFLAGS := -O binary --add-gnu-debuglink=sms.ld --gap-fill 0x00 --pad-to 0x81800000
 
 SRC_DIR := source
 INC_DIR := include
@@ -50,7 +49,7 @@ $(OUT_DIR)/$(OUT_LST): $(OUT_DIR)/$(OUT_BIN)
 	$(OD) $(ODFLAGS) $(OUT_DIR)/$(OUT_BIN) > $(OUT_DIR)/$(OUT_LST)
 
 $(OUT_DIR)/$(OUT_BIN): $(OUT_DIR)/$(OUT_MAIN)
-	$(OBJCOPY) -O binary $< $@
+	$(OBJCOPY) $(OBJCOPYFLAGS) $< $@
 
 $(OUT_DIR)/$(OUT_MAIN): $(OBJ_FILES) $(LD_FILE) $(OUT_DIR)
 	$(LD) $(LDFLAGS) -o $@ -T $(LD_FILE) -Map $(OUT_DIR)/$(OUT_MAP) $(OBJ_FILES)
diff --git a/include/gcn.h b/include/gcn.h
index cc22ee2..e7c226b 100644
--- a/include/gcn.h
+++ b/include/gcn.h
@@ -21,13 +21,13 @@ typedef struct CARDFileInfo
   u16 iBlock;
 } CARDFileInfo;
 
-// typedef void (*CARDCallback)(s32 chan, s32 result);
-
 s32 CARDOpen(s32 slot, const char *fileName, CARDFileInfo *fileInfo);
 s32 CARDRead(CARDFileInfo *fileInfo, void *addr, s32 length, s32 offset);
 s32 CARDClose(CARDFileInfo *fileInfo);
-// s32 CARDProbeEx(s32 chan, s32 *memSize, s32 *sectorSize);
-// s32 CARDMount(s32 chan, void *workArea, CARDCallback detachCallback);
 s32 CARDUnmount(s32 chan);
 
+// typedef void (*CARDCallback)(s32 chan, s32 result);
+// s32 CARDProbeEx(s32 chan, s32 *memSize, s32 *sectorSize);
+// s32 CARDMount(s32 chan, void *workArea, CARDCallback detachCallback);
+
 #endif
\ No newline at end of file
diff --git a/sms.ld b/sms.ld
index 81b5be2..5a75926 100644
--- a/sms.ld
+++ b/sms.ld
@@ -1,5 +1,5 @@
 SECTIONS {
-  . = 0x80000000;  /* TODO: Determine Address */
+  . = 0x817FF000;  /* TODO: Determine Best Address */
   .text : { *(.text) }
   .rodata : { *(.rodata) }
   .data : { *(.data) }