First version

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@175 a1c6a512-1295-4272-9138-f99709370657

firmware/test/kernel/Makefile

@@ -0,0 +1,42 @@
+CC    = sh-elf-gcc 
+LD    = sh-elf-ld
+AR    = sh-elf-ar
+AS    = sh-elf-as
+OC    = sh-elf-objcopy
+
+INCLUDES=-I../../
+
+CFLAGS = -O -Wall -m1 -save-temps -nostdlib -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns -fno-builtin $(INCLUDES)
+AFLAGS += -small -relax
+
+OBJS= crt0.o main.o ../../thread.o ../../debug.o
+
+%.o: %.S
+	$(CC) -o $@ $(CFLAGS) $(INCLUDES) $(DEFS) -c $<
+
+
+all : archos.mod
+
+archos.elf : $(OBJS) app.lds
+	$(CC) -nostartfiles -o archos.elf $(OBJS) -lgcc -Tapp.lds -Wl,-Map,archos.map
+
+archos.bin : archos.elf
+	$(OC) -O binary archos.elf archos.bin
+
+archos.asm: archos.bin
+	sh2d -sh1 archos.bin > archos.asm
+
+archos.mod : archos.bin
+	scramble archos.bin archos.mod
+
+archos.mod.gz : archos.mod
+	gzip -f archos.mod
+
+dist:
+	tar czvf dist.tar.gz Makefile main.c start.s app.lds
+
+clean:
+	-rm -f *.x *.i *.o *.elf *.bin *.map *.mod *.bak *~
+
+install:
+	mount /mnt/archos; cp archos.mod /mnt/archos; umount /mnt/archos

firmware/test/kernel/app.lds

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+ENTRY(start)
+OUTPUT_FORMAT(elf32-sh)
+SECTIONS
+{
+    .text 0x09018000 :
+    {
+        *(.rodata)
+        *(.text)
+    }
+
+    .data :
+    {
+        *(.data)
+    }
+
+    .bss :
+    {
+        *(.bss)
+       _end = . + 0x8000;
+       _stack = . + 0x9000;
+       _edata = .;
+    }
+}

firmware/test/kernel/crt0.S

@@ -0,0 +1,49 @@
+	.section .text
+	.global	start
+start:
+	mov.l	stack_k,r15
+
+	! zero out bss
+	mov.l	edata_k,r0
+	mov.l	end_k,r1
+	mov	#0,r2
+start_l:
+	 mov.l	r2,@r0
+	add	#4,r0
+	cmp/ge	r0,r1
+	bt	start_l
+	nop
+
+#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY)
+	mov.l set_fpscr_k, r1
+	jsr @r1
+	mov #0,r4
+	lds r3,fpscr
+#endif /*  defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) */
+
+	! call the mainline	
+	mov.l	main_k,r0
+	jsr	@r0
+	nop
+.hoo:
+    bra .hoo
+
+	.align 2
+#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__)
+set_fpscr_k:
+	.long	___set_fpscr
+#endif /*  defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) */
+stack_k:
+	.long	_stack	
+edata_k:
+	.long	_edata
+end_k:
+	.long	_end
+main_k:
+	.long	_main
+
+#ifdef __ELF__
+	.section .stack,"aw"
+#else
+	.section .stack
+#endif

firmware/test/kernel/main.c

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+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Linus Nielsen Feltzing
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "thread.h"
+#include "sh7034.h"
+#include "debug.h"
+
+unsigned int s1[256];
+unsigned int s2[256];
+
+void t1(void);
+void t2(void);
+
+int main(void)
+{
+   char buf[40];
+   char str[32];
+   int i=0;
+
+   /* Clear it all! */
+    SSR1 &= ~(SCI_RDRF | SCI_ORER | SCI_PER | SCI_FER);
+
+    /* This enables the serial Rx interrupt, to be able to exit into the
+       debugger when you hit CTRL-C */
+    SCR1 |= 0x40;
+    SCR1 &= ~0x80;
+    asm ("ldc\t%0,sr" : : "r"(0<<4));
+
+    debugf("OK. Let's go\n");
+
+    create_thread(t1, s1, 1024);
+    create_thread(t2, s2, 1024);
+
+    while(1)
+    {
+       debugf("t0\n");
+       switch_thread();
+    }
+}
+
+void t1(void)
+{
+   while(1)
+   {
+      debugf("t1\n");
+      switch_thread();
+   }
+}
+
+void t2(void)
+{
+   while(1)
+   {
+      debugf("t2\n");
+      switch_thread();
+   }
+}
+
+extern const void stack(void);
+
+const void* vectors[] __attribute__ ((section (".vectors"))) = 
+{
+   main,	/* Power-on reset */
+   stack,	/* Power-on reset (stack pointer) */
+   main,	/* Manual reset */
+   stack	/* Manual reset (stack pointer) */
+};