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-rw-r--r--cpukit/libdl/rtl-mdreloc-moxie.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/cpukit/libdl/rtl-mdreloc-moxie.c b/cpukit/libdl/rtl-mdreloc-moxie.c
new file mode 100644
index 0000000000..284f68e260
--- /dev/null
+++ b/cpukit/libdl/rtl-mdreloc-moxie.c
@@ -0,0 +1,88 @@
+
+#include <sys/cdefs.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <rtems/rtl/rtl.h>
+#include "rtl-elf.h"
+#include "rtl-error.h"
+#include "rtl-trace.h"
+
+bool
+rtems_rtl_elf_rel_resolve_sym (Elf_Word type)
+{
+ return true;
+}
+
+bool
+rtems_rtl_elf_relocate_rela (const rtems_rtl_obj_t* obj,
+ const Elf_Rela* rela,
+ const rtems_rtl_obj_sect_t* sect,
+ const char* symname,
+ const Elf_Byte syminfo,
+ const Elf_Word symvalue)
+{
+ Elf_Addr *where;
+ Elf_Sword tmp;
+
+ where = (Elf_Addr *)(sect->base + rela->r_offset);
+
+ /* Handle the not 4byte aligned address carefully */
+
+ switch (ELF_R_TYPE(rela->r_info)) {
+ case R_TYPE(NONE):
+ break;
+
+ case R_TYPE(32):
+ *(uint16_t *)where = ((symvalue + rela->r_addend) >> 16) & 0xffff;
+ *((uint16_t *)where + 1) = (symvalue + rela->r_addend) & 0xffff;
+
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC)) {
+ printf("*where 0x%04x%04x\n", *((uint16_t *)where + 1), *(uint16_t *)where);
+ }
+ break;
+
+ case R_TYPE(PCREL10):
+ /* beq, bge, bgeu, bgt, bgtu, ble, bleu, blt, bltu, bne */
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC)) {
+ printf("*where %x\n", *(uint16_t *)where);
+ printf("symvalue - where %x\n", (int)(symvalue - (Elf_Word)where));
+ }
+ tmp = (symvalue + rela->r_addend - ((Elf_Word)where + 2)); /* pc is the next instruction */
+ tmp = (Elf_Sword)tmp >> 1;
+ if (((Elf32_Sword)tmp > 0x1ff) || ((Elf32_Sword)tmp < -(Elf32_Sword)0x200)){
+ printf("Overflow for PCREL10: %d exceed -0x200:0x1ff\n", tmp);
+ return false;
+ }
+
+ *(uint16_t *)where = (*(uint16_t *)where & 0xfc00) | (tmp & 0x3ff);
+
+ if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC)) {
+ printf("*where 0x%04x\n", *(uint16_t *)where);
+ }
+
+ break;
+
+ default:
+ rtems_rtl_set_error (EINVAL, "rela type record not supported");
+ printf("Unsupported reloc types\n");
+ return false;
+ }
+
+ return true;
+}
+
+bool
+rtems_rtl_elf_relocate_rel (const rtems_rtl_obj_t* obj,
+ const Elf_Rel* rel,
+ const rtems_rtl_obj_sect_t* sect,
+ const char* symname,
+ const Elf_Byte syminfo,
+ const Elf_Word symvalue)
+{
+ rtems_rtl_set_error (EINVAL, "rel type record not supported");
+ return false;
+}