Das U-Boot: Universal Boot Loader

diff --git a/examples/syscall.S b/examples/syscall.S
new file mode 100644 (file)
index 0000000..9e8725e
--- /dev/null
+++ b/examples/syscall.S
@@ -0,0 +1,64 @@
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+#include <syscall.h>
+
+#ifdef CONFIG_ARM /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
+#warning ARM version not implemented yet /* XXXXXXXXXXXXXXXXXXXXXXXXXXXX */
+       .global mon_getc
+       .type   mon_getc,function
+mon_getc:
+       .global mon_tstc
+       .type   mon_tstc,function
+mon_tstc:
+       .global mon_putc
+       .type   mon_putc,function
+mon_putc:
+       .global mon_puts
+       .type   mon_puts,function
+mon_puts:
+       .global mon_printf
+       .type   mon_printf,function
+mon_printf:
+       .global mon_install_hdlr
+       .type   mon_install_hdlr,function
+mon_install_hdlr:
+       .global mon_free_hdlr
+       .type   mon_free_hdlr,function
+mon_free_hdlr:
+       .global mon_malloc
+       .type   mon_malloc,function
+mon_malloc:
+       .global mon_free
+       .type   mon_free,function
+mon_free:
+       @ args = 0, pretend = 0, frame = 0
+       @ frame_needed = 1, current_function_anonymous_args = 0
+       mov     ip, sp
+       stmfd   sp!, {fp, ip, lr, pc}
+       sub     fp, ip, #4
+       ldmea   fp, {fp, sp, pc}
+#else /* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
+#define SYSCALL(name,n) \
+       .globl name             ; \
+name:                          ; \
+       li r0,n                 ; \
+       sc                      ; \
+       blr
+
+       .text
+
+       /*
+         * Make sure these functions are in the same order as they
+         * appear in the "include/syscall.h" header file !!!
+        */
+
+       SYSCALL(mon_getc,SYSCALL_GETC)
+       SYSCALL(mon_tstc,SYSCALL_TSTC)
+       SYSCALL(mon_putc,SYSCALL_PUTC)
+       SYSCALL(mon_puts,SYSCALL_PUTS)
+       SYSCALL(mon_printf,SYSCALL_PRINTF)
+       SYSCALL(mon_install_hdlr,SYSCALL_INSTALL_HDLR)
+       SYSCALL(mon_free_hdlr,SYSCALL_FREE_HDLR)
+       SYSCALL(mon_malloc,SYSCALL_MALLOC)
+       SYSCALL(mon_free,SYSCALL_FREE)
+#endif /* CONFIG_ARM XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */