Don't link against libc; compile -Os (optimized for size). Shaves abo…

…ut 8k.
iPodLinux · May 9, 2006 · e6f0902 · e6f0902
1 parent 62100b6
commit e6f0902
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Showing 2 changed files with 12 additions and 4 deletions.
diff --git a/tools/ipodloader2/Makefile b/tools/ipodloader2/Makefile
@@ -4,10 +4,11 @@
 
 CROSS    ?= arm-uclinux-elf-
 CC        = $(CROSS)gcc
-MYCFLAGS  = -O2 -Wall -std=gnu99 -ffreestanding -nostdinc -fomit-frame-pointer
+LD        = $(CROSS)ld
+MYCFLAGS  = -Os -Wall -std=gnu99 -ffreestanding -nostdinc -fomit-frame-pointer
 # -DDEBUG
-MYCPPFLAGS= -O2 -Wall -nostdinc -fomit-frame-pointer -mstructure-size-boundary=8
-MYLDFLAGS = -Wl,-Tarm_elf_40.x -nostartfiles -fomit-frame-pointer
+MYCPPFLAGS= -Os -Wall -nostdinc -fomit-frame-pointer -mstructure-size-boundary=8
+MYLDFLAGS = -Tarm_elf_40.x `$(CC) -print-libgcc-file-name`
 OBJCOPY   = $(CROSS)objcopy
 
 OBJFILES = startup.o loader.o fb.o ipodhw.o console.o minilibc.o ata2.o vfs.o fat32.o ext2.o fwfs.o keypad.o menu.o config.o macpartitions.o
@@ -26,7 +27,8 @@ loader.bin: loader.elf
 
 loader.elf: $(OBJFILES)
 	@echo "Linking $@"
-	@$(CC) $(MYLDFLAGS) $(LDFLAGS) -o $@ $^
+	@$(LD) -o $@ $^ $(MYLDFLAGS)
+#	@$(CC) $(MYLDFLAGS) $(LDFLAGS) -o $@ $^
 
 %.o:%.cc
 	@echo "Compiling $<"

diff --git a/tools/ipodloader2/minilibc.c b/tools/ipodloader2/minilibc.c
@@ -512,6 +512,12 @@ char  *mlc_strncpy(char *dest,const char *src,size_t count) {
 	else      return(0x00);
 }
 
+/* gcc emits code that calls memcpy() */
+void *memcpy (void *dest, const void *src, size_t n) 
+{
+    return mlc_memcpy (dest, src, n);
+}
+
 void *mlc_memcpy(void *dest, const void *src, size_t n) {
   // rewrite by TT 31Mar06, taking odd dest into account