rewrite the stage 1 of bootloader in a more compact and (mostly) load-addr-independent way

1 files changed, 0 insertions, 26 deletions

diff --git a/loader_stage1.c b/loader_stage1.c
deleted file mode 100644
index aca439c..0000000
--- a/loader_stage1.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stddef.h>
-#include <stdint.h>
-#include <global.h>
-
-#define STAGE2_ADDR ((volatile char*) 0x4000)
-
-// There's one tricky thing about managing executable's own code.
-// Mainly, symbols are visible to c code as extern chars, but the actual
-// values are their adresses... see the code below
-extern char
-  __stage2_start,
-  __stage2_end,
-  __stage2_size;
-
-__attribute__((section(".text.stage1main")))
-void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags)
-{
-  // stage2 of the bootloader is part of executable;
-  // copy it over to it's destination place
-  // TODO implement a memcpy() somewhere and use it instead of loops
-  for (size_t i = 0; i < (size_t) &__stage2_size; i++)
-    STAGE2_ADDR[i] = (&__stage2_start)[i];
-
-  // jump to stage2
-  ((void(*)(uint32_t, uint32_t, uint32_t))STAGE2_ADDR)(r0, r1, atags);
-}