H8300 Support

Signed-off-by: Peng Fan <van.freenix@gmail.com>

9 files changed, 182 insertions, 1 deletions

diff --git a/libbsd/include/arch/h8300/machine/ansi.h b/libbsd/include/arch/h8300/machine/ansi.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libbsd/include/arch/h8300/machine/ansi.h
diff --git a/libbsd/include/arch/h8300/machine/asm.h b/libbsd/include/arch/h8300/machine/asm.h
new file mode 100644
index 0000000..b3a7a95
--- /dev/null
+++ b/libbsd/include/arch/h8300/machine/asm.h
@@ -0,0 +1,2 @@
+
+#define __CONCAT(x,y) x ## y
diff --git a/libbsd/include/arch/h8300/machine/cdefs.h b/libbsd/include/arch/h8300/machine/cdefs.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libbsd/include/arch/h8300/machine/cdefs.h
diff --git a/libbsd/include/arch/h8300/machine/elf_machdep.h b/libbsd/include/arch/h8300/machine/elf_machdep.h
new file mode 100644
index 0000000..3d04915
--- /dev/null
+++ b/libbsd/include/arch/h8300/machine/elf_machdep.h
@@ -0,0 +1,59 @@
+
+#define ELF32_MACHDEP_ENDIANNESS		ELFDATA2MSB
+
+#define ELF32_MACHDEP_ID_CASES \
+	case EM_H8_300: \
+	case EM_H8_300H: \
+	case EM_H8S: \
+	case EM_H8_500: \
+		break;
+
+#define ELF32_MACHDEP_ID	EM_H8_300
+#define ARCH_ELFSIZE	32
+
+#define R_H8_NONE 0
+#define R_H8_DIR32 1
+#define R_H8_DIR32_28 2
+#define R_H8_DIR32_24 3
+#define R_H8_DIR32_16 4
+#define R_H8_DIR32U 6
+#define R_H8_DIR32U_28 7
+#define R_H8_DIR32U_24 8
+#define R_H8_DIR32U_20 9
+#define R_H8_DIR32U_16 10
+#define R_H8_DIR24 11
+#define R_H8_DIR24_20 12
+#define R_H8_DIR24_16 13
+#define R_H8_DIR24U 14
+#define R_H8_DIR24U_20 15
+#define R_H8_DIR24U_16 16
+#define R_H8_DIR16 17
+#define R_H8_DIR16U 18
+#define R_H8_DIR16S_32 19
+#define R_H8_DIR16S_28 20
+#define R_H8_DIR16S_24 21
+#define R_H8_DIR16S_20 22
+#define R_H8_DIR16S 23
+#define R_H8_DIR8 24
+#define R_H8_DIR8U 25
+#define R_H8_DIR8Z_32 26
+#define R_H8_DIR8Z_28 27
+#define R_H8_DIR8Z_24 28
+#define R_H8_DIR8Z_20 29
+#define R_H8_DIR8Z_16 30
+#define R_H8_PCREL16 31
+#define R_H8_PCREL8 32
+#define R_H8_BPOS 33
+#define R_H8_PCREL32 34
+#define R_H8_GOT32O 35
+#define R_H8_GOT16O 36
+#define R_H8_DIR16A8 59
+#define R_H8_DIR16R8 60
+#define R_H8_DIR24A8 61
+#define R_H8_DIR24R8 62
+#define R_H8_DIR32A16 63
+#define R_H8_ABS32 65
+#define R_H8_ABS32A16 127
+
+
+#define R_TYPE(name)		__CONCAT(R_H8_,name)
diff --git a/libbsd/include/arch/h8300/machine/int_types.h b/libbsd/include/arch/h8300/machine/int_types.h
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libbsd/include/arch/h8300/machine/int_types.h
diff --git a/rtl-mdreloc-h8300.c b/rtl-mdreloc-h8300.c
new file mode 100644
index 0000000..e9adeda
--- /dev/null
+++ b/rtl-mdreloc-h8300.c
@@ -0,0 +1,101 @@
+#include <sys/cdefs.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <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_Word	tmp;
+
+  where = (Elf_Addr *)(sect->base + rela->r_offset);
+
+  if (rtems_rtl_trace (RTEMS_RTL_TRACE_RELOC)) {
+      printf("rela relocation type is %ld\n", ELF_R_TYPE(rela->r_info));
+      printf("relocated address 0x%08lx\n", (Elf_Addr)where);
+  }
+
+  tmp = symvalue;
+  switch (ELF_R_TYPE(rela->r_info)) {
+    case R_TYPE(NONE):
+      break;
+
+    case R_TYPE(DIR16):
+      *(uint16_t *)where += symvalue + rela->r_addend;
+      break;
+
+    case R_TYPE(DIR32):
+    case R_TYPE(DIR32A16):
+      *where += symvalue + rela->r_addend;
+      break;
+
+    case R_TYPE(DIR24A8):
+      if (ELF32_R_SYM(rela->r_info))
+        *where += symvalue + rela->r_addend;
+      break;
+
+    case R_TYPE(DIR24R8):
+      where = (uint32_t *)((uint32_t)where - 1);
+      *where = (*where & 0xff000000) | ((*where & 0xffffff) + symvalue + rela->r_addend);
+      break;
+
+    case R_TYPE(PCREL8):
+      /* bcc instruction */
+      tmp = symvalue + rela->r_addend - (Elf_Addr)where - 1;
+      if (((Elf32_Sword)tmp > 0x7f) || ((Elf32_Sword)tmp < -(Elf32_Sword)0x80)){
+        printf("PCREL8 overflow\n");
+          return false;
+      } else {
+        *(uint8_t *)where = tmp;
+      }
+      break;
+
+    case R_TYPE(PCREL16):
+      /* bcc instruction */
+      tmp = symvalue + rela->r_addend - (Elf_Addr)where - 2;
+      if (((Elf32_Sword)tmp > 0x7fff) || ((Elf32_Sword)tmp < -(Elf32_Sword)0x8000)){
+        printf("PCREL16 overflow\n");
+       return false;
+      } else {
+       *(uint16_t *)where = tmp;
+      }
+      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;
+}
diff --git a/testcase/Readme b/testcase/Readme
index ee71b3e..c90ab71 100644
--- a/testcase/Readme
+++ b/testcase/Readme
@@ -27,3 +27,11 @@ bfin:
   Simulator:
     bf537Stamp-gdb build/bfin-rtems4.11-bf537Stamp/rtld
   Note: if use gdb to run rtl, add 'rap ld './test.rap'' into shell-init
+
+h8300:
+ configure --rtems=/opt/rtems-4.11 --rtems-tools=/opt/rtems-4.11 --rtems-archs=h8300 --rtems-bsps=h8300/h8sim
+ configure --rtems=/opt/rtems-4.11 --rtems-tools=/opt/rtems-4.11 --rtems-archs=h8300 --rtems-bsps=h8300/h8sxsim
+ You should change '-B ${RTEMS_ARCH}' to '-B h8300h' for h8sim and '-B h8300sx' for h8sxsim
+
+ Simulator:
+   h8sim -i build/h8300-rtems4.11-h8sim/rtld
diff --git a/testcase/wscript b/testcase/wscript
index 130b441..1a0d0c5 100644
--- a/testcase/wscript
+++ b/testcase/wscript
@@ -74,6 +74,17 @@ def build(bld):
                          '--entry', '_my_main'],
       source = ['1.c', '2.c'])
 
+    elif arch == 'h8300':
+      bld(target = 'test.rap',
+      features = 'c rap',
+      xxxx = 'hello',
+
+      cflags = '-fno-common',
+
+      rtems_linkflags = ['--base', 'rtld.prelink',
+                         '--entry', '_my_main'],
+      source = ['1.c', '2.c'])
+
     bld(target = '../test.rap',
 				source = ['test.rap'],
 				rule = 'cp ${SRC} ${TGT}')
diff --git a/wscript b/wscript
index 5919636..4e5974c 100644
--- a/wscript
+++ b/wscript
@@ -66,7 +66,7 @@ def build(bld):
     #
     # The ARM as special BSP initialise code.
     #
-    if arch == 'arm' or arch == 'powerpc' or arch == 'mips' or arch == 'bfin':
+    if arch == 'arm' or arch == 'powerpc' or arch == 'mips' or arch == 'bfin' or arch == 'h8300':
         bld(target = 'bspinit',
             features = 'c',
             includes = bld.includes,