--- /dev/null
+/* BFD back-end for National Semiconductor's CR16C ELF
+ Copyright 2004 Free Software Foundation, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "elf/cr16c.h"
+#include "elf-bfd.h"
+
+
+#define USE_REL 1 /* CR16C uses REL relocations instead of RELA. */
+
+/* The following definition is based on EMPTY_HOWTO macro,
+ but also initiates the "name" field in HOWTO struct. */
+#define ONLY_NAME_HOWTO(C) \
+ HOWTO ((C), 0, 0, 0, FALSE, 0, complain_overflow_dont, NULL, \
+ STRINGX(C), FALSE, 0, 0, FALSE)
+
+/* reloc_map_index array maps CRASM relocation type into a BFD
+ relocation enum. The array's indices are synchronized with
+ RINDEX_16C_* indices, created in include/elf/cr16c.h.
+ The array is used in:
+ 1. elf32-cr16c.c : elf_cr16c_reloc_type_lookup().
+ 2. asreloc.c : find_reloc_type(). */
+
+RELOC_MAP reloc_map_index[RINDEX_16C_MAX] =
+{
+ {R_16C_NUM08, BFD_RELOC_16C_NUM08},
+ {R_16C_NUM08_C, BFD_RELOC_16C_NUM08_C},
+ {R_16C_NUM16, BFD_RELOC_16C_NUM16},
+ {R_16C_NUM16_C, BFD_RELOC_16C_NUM16_C},
+ {R_16C_NUM32, BFD_RELOC_16C_NUM32},
+ {R_16C_NUM32_C, BFD_RELOC_16C_NUM32_C},
+ {R_16C_DISP04, BFD_RELOC_16C_DISP04},
+ {R_16C_DISP04_C, BFD_RELOC_16C_DISP04_C},
+ {R_16C_DISP08, BFD_RELOC_16C_DISP08},
+ {R_16C_DISP08_C, BFD_RELOC_16C_DISP08_C},
+ {R_16C_DISP16, BFD_RELOC_16C_DISP16},
+ {R_16C_DISP16_C, BFD_RELOC_16C_DISP16_C},
+ {R_16C_DISP24, BFD_RELOC_16C_DISP24},
+ {R_16C_DISP24_C, BFD_RELOC_16C_DISP24_C},
+ {R_16C_DISP24a, BFD_RELOC_16C_DISP24a},
+ {R_16C_DISP24a_C, BFD_RELOC_16C_DISP24a_C},
+ {R_16C_REG04, BFD_RELOC_16C_REG04},
+ {R_16C_REG04_C, BFD_RELOC_16C_REG04_C},
+ {R_16C_REG04a, BFD_RELOC_16C_REG04a},
+ {R_16C_REG04a_C, BFD_RELOC_16C_REG04a_C},
+ {R_16C_REG14, BFD_RELOC_16C_REG14},
+ {R_16C_REG14_C, BFD_RELOC_16C_REG14_C},
+ {R_16C_REG16, BFD_RELOC_16C_REG16},
+ {R_16C_REG16_C, BFD_RELOC_16C_REG16_C},
+ {R_16C_REG20, BFD_RELOC_16C_REG20},
+ {R_16C_REG20_C, BFD_RELOC_16C_REG20_C},
+ {R_16C_ABS20, BFD_RELOC_16C_ABS20},
+ {R_16C_ABS20_C, BFD_RELOC_16C_ABS20_C},
+ {R_16C_ABS24, BFD_RELOC_16C_ABS24},
+ {R_16C_ABS24_C, BFD_RELOC_16C_ABS24_C},
+ {R_16C_IMM04, BFD_RELOC_16C_IMM04},
+ {R_16C_IMM04_C, BFD_RELOC_16C_IMM04_C},
+ {R_16C_IMM16, BFD_RELOC_16C_IMM16},
+ {R_16C_IMM16_C, BFD_RELOC_16C_IMM16_C},
+ {R_16C_IMM20, BFD_RELOC_16C_IMM20},
+ {R_16C_IMM20_C, BFD_RELOC_16C_IMM20_C},
+ {R_16C_IMM24, BFD_RELOC_16C_IMM24},
+ {R_16C_IMM24_C, BFD_RELOC_16C_IMM24_C},
+ {R_16C_IMM32, BFD_RELOC_16C_IMM32},
+ {R_16C_IMM32_C, BFD_RELOC_16C_IMM32_C}
+};
+
+static reloc_howto_type elf_howto_table[] =
+{
+ /* 00 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM08),
+ /* 01 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM08_C),
+ /* 02 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM16),
+ /* 03 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM16_C),
+ /* 04 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM32),
+ /* 05 */ ONLY_NAME_HOWTO (RINDEX_16C_NUM32_C),
+ /* 06 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP04),
+ /* 07 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP04_C),
+ /* 08 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP08),
+ /* 09 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP08_C),
+ /* 10 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP16),
+ /* 11 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP16_C),
+ /* 12 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP24),
+ /* 13 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP24_C),
+ /* 14 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP24a),
+ /* 15 */ ONLY_NAME_HOWTO (RINDEX_16C_DISP24a_C),
+ /* 16 */ ONLY_NAME_HOWTO (RINDEX_16C_REG04),
+ /* 17 */ ONLY_NAME_HOWTO (RINDEX_16C_REG04_C),
+ /* 18 */ ONLY_NAME_HOWTO (RINDEX_16C_REG04a),
+ /* 19 */ ONLY_NAME_HOWTO (RINDEX_16C_REG04a_C),
+ /* 20 */ ONLY_NAME_HOWTO (RINDEX_16C_REG14),
+ /* 21 */ ONLY_NAME_HOWTO (RINDEX_16C_REG14_C),
+ /* 22 */ ONLY_NAME_HOWTO (RINDEX_16C_REG16),
+ /* 23 */ ONLY_NAME_HOWTO (RINDEX_16C_REG16_C),
+ /* 24 */ ONLY_NAME_HOWTO (RINDEX_16C_REG20),
+ /* 25 */ ONLY_NAME_HOWTO (RINDEX_16C_REG20_C),
+ /* 26 */ ONLY_NAME_HOWTO (RINDEX_16C_ABS20),
+ /* 27 */ ONLY_NAME_HOWTO (RINDEX_16C_ABS20_C),
+ /* 28 */ ONLY_NAME_HOWTO (RINDEX_16C_ABS24),
+ /* 29 */ ONLY_NAME_HOWTO (RINDEX_16C_ABS24_C),
+ /* 30 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM04),
+ /* 31 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM04_C),
+ /* 32 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM16),
+ /* 33 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM16_C),
+ /* 34 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM20),
+ /* 35 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM20_C),
+ /* 36 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM24),
+ /* 37 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM24_C),
+ /* 38 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM32),
+ /* 39 */ ONLY_NAME_HOWTO (RINDEX_16C_IMM32_C)
+};
+
+
+/* Code to turn a code_type into a howto ptr, uses the above howto table. */
+
+static reloc_howto_type *
+elf_cr16c_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
+{
+ unsigned int i;
+
+ for (i = 0; i < RINDEX_16C_MAX; i++)
+ {
+ if (code == reloc_map_index[i].bfd_reloc_enum)
+ {
+ /* printf ("CR16C Relocation Type is - %x\n", code); */
+ return & elf_howto_table[i];
+ }
+ }
+
+ /* printf ("This relocation Type is not supported - %x\n", code); */
+ return 0;
+}
+
+static void
+elf_cr16c_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr ATTRIBUTE_UNUSED,
+ Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
+{
+ abort ();
+}
+
+static void
+elf_cr16c_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *cache_ptr,
+ Elf_Internal_Rela *dst)
+{
+ unsigned int r_type = ELF32_R_TYPE (dst->r_info);
+
+ BFD_ASSERT (r_type < (unsigned int) RINDEX_16C_MAX);
+ cache_ptr->howto = &elf_howto_table[r_type];
+}
+
+/* Perform a relocation as part of a final link. */
+
+static bfd_reloc_status_type
+cr16c_elf_final_link_relocate (reloc_howto_type *howto,
+ bfd *abfd,
+ bfd *output_bfd ATTRIBUTE_UNUSED,
+ asection *input_section,
+ bfd_byte *data,
+ bfd_vma octets,
+ bfd_vma Rvalue,
+ bfd_vma addend ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ asection *sym_sec ATTRIBUTE_UNUSED,
+ int is_local ATTRIBUTE_UNUSED)
+{
+ long value;
+ short sword; /* Extracted from the hole and put back. */
+ unsigned long format, addr_type, code_factor;
+ unsigned short size;
+ unsigned short r_type;
+ asymbol *symbol = NULL;
+
+ unsigned long disp20_opcod;
+ char neg = 0;
+ char neg2pos = 0;
+
+ long left_val = 0;
+ long plus_factor = 0; /* To be added to the hole. */
+
+#define MIN_BYTE ((int) 0xFFFFFF80)
+#define MIN_WORD ((int) 0xFFFF8000)
+#define MAX_UWORD ((unsigned) 0x0000FFFF)
+#define MAX_UBYTE ((unsigned) 0x000000FF)
+
+ r_type = reloc_map_index[howto->type].cr_reloc_type;
+ format = r_type & R_FORMAT;
+ size = r_type & R_SIZESP;
+ addr_type = r_type & R_ADDRTYPE;
+ code_factor = ((addr_type == R_CODE_ADDR) ? 1 : 0);
+
+ if (sym_sec)
+ symbol = sym_sec->symbol;
+
+ switch (format)
+ {
+ case R_NUMBER:
+ switch (size)
+ {
+ case R_S_16C_08: /* One byte. */
+ value = bfd_get_8 (abfd, (char *) data + octets);
+ break;
+ case R_S_16C_16: /* Two bytes. */
+ sword = bfd_get_16 (abfd, (bfd_byte *) data + octets);
+ value = sword;
+ break;
+ case R_S_16C_32: /* Four bytes. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_DISPL:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1(4-7). */
+ value = bfd_get_8 (abfd, (char *) data + octets);
+ left_val = value & 0xF;
+ value = (value & 0xF0) >> 4;
+ value++;
+ value <<= 1;
+ break;
+ case R_S_16C_08: /* word1(0-3,8-11). */
+ sword = bfd_get_16 (abfd, (char *) data + octets);
+ value = sword & 0x000F;
+ value |= ((sword & 0x0F00) >> 4);
+ left_val = sword & 0xF0F0;
+ value <<= 1;
+ if (value & 0x100)
+ value |= 0xFFFFFF00;
+ break;
+ case R_S_16C_16: /* word2. */
+ sword = bfd_get_16 (abfd, (bfd_byte *) data + octets);
+ value = sword;
+ value = ((value & 0xFFFE) >> 1) | ((value & 0x1) << 15);
+ value <<= 1;
+ if (value & 0x10000)
+ value |= 0xFFFF0000;
+ break;
+ case R_S_16C_24_a: /* word1(0-7),word2. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x0000FF00;
+ value = ((value & 0xFFFE0000) >> 17) |
+ ((value & 0x00010000) << 7) | ((value & 0x000000FF) << 15);
+ value <<= 1;
+ if (value & 0x1000000)
+ value |= 0xFE000000;
+ break;
+ case R_S_16C_24: /* word2(0-3,8-11),word3. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x0000F0F0;
+ value = ((value >> 16) & 0x0000FFFF) |
+ ((value & 0x00000F00) << 8) | ((value & 0x0000000F) << 20);
+
+ value = ((value & 0x00FFFFFE) >> 1) | ((value & 0x00000001) << 23);
+
+ value <<= 1;
+ if (value & 0x1000000)
+ value |= 0xFE000000;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_REGREL:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1(12-15) not scaled. */
+ value = bfd_get_8 (abfd, (char *) data + octets);
+ left_val = value & 0xF0;
+ value = value & 0xF;
+ break;
+ case R_S_16C_04_a: /* word1(12-15) scaled by 2. */
+ value = bfd_get_8 (abfd, (char *) data + octets);
+ left_val = value & 0xF0;
+ value = value & 0xF;
+ value <<= 1;
+ break;
+ case R_S_16C_14: /* word1(4-5),word2(0-3,8-15). */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x00F0FFCF;
+ value = ((value & 0xc0000000) >> 24) |
+ ((value & 0x3F000000) >> 16) |
+ ((value & 0x000F0000) >> 16) | (value & 0x00000030);
+ break;
+ case R_S_16C_16: /* word2. */
+ sword = bfd_get_16 (abfd, (bfd_byte *) data + octets);
+ value = sword;
+ break;
+ case R_S_16C_20: /* word2(8-11),word3. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0xF0;
+ value = (value & 0xF) << 16;
+ sword = bfd_get_16 (abfd, (bfd_byte *) data + octets + 1);
+ value = value | (unsigned short) sword;
+ disp20_opcod = bfd_get_32 (abfd, (bfd_byte *) data + octets - 3);
+ disp20_opcod |= 0x0FFF0000;
+ if ((disp20_opcod == 0x4FFF0018) || /* loadb -disp20(reg) */
+ (disp20_opcod == 0x5FFF0018) || /* loadb -disp20(rp) */
+ (disp20_opcod == 0x8FFF0018) || /* loadd -disp20(reg) */
+ (disp20_opcod == 0x9FFF0018) || /* loadd -disp20(rp) */
+ (disp20_opcod == 0xCFFF0018) || /* loadw -disp20(reg) */
+ (disp20_opcod == 0xDFFF0018) || /* loadw -disp20(rp) */
+ (disp20_opcod == 0x4FFF0019) || /* storb -disp20(reg) */
+ (disp20_opcod == 0x5FFF0019) || /* storb -disp20(rp) */
+ (disp20_opcod == 0x8FFF0019) || /* stord -disp20(reg) */
+ (disp20_opcod == 0x9FFF0019) || /* stord -disp20(rp) */
+ (disp20_opcod == 0xCFFF0019) || /* storw -disp20(reg) */
+ (disp20_opcod == 0xDFFF0019))
+ { /* storw -disp20(rp). */
+ neg = 1;
+ value |= 0xFFF00000;
+ }
+
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_ABS:
+ switch (size)
+ {
+ case R_S_16C_20: /* word1(0-3),word2. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x0000FFF0;
+ value = ((value & 0xFFFF0000) >> 16) |
+ ((value & 0x0000000F) << 16);
+ break;
+ case R_S_16C_24: /* word2(0-3,8-11),word3. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x0000F0F0;
+ value = ((value & 0xFFFF0000) >> 16) |
+ ((value & 0x00000F00) << 8) | ((value & 0x0000000F) << 20);
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_IMMED:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1/2(4-7). */
+ value = bfd_get_8 (abfd, (char *) data + octets);
+ left_val = value & 0xF;
+ value = (value & 0xF0) >> 4;
+ break;
+ case R_S_16C_16: /* word2. */
+ sword = bfd_get_16 (abfd, (bfd_byte *) data + octets);
+ value = sword;
+ break;
+ case R_S_16C_20: /* word1(0-3),word2. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ left_val = value & 0x0000FFF0;
+ value = ((value & 0xFFFF0000) >> 16) |
+ ((value & 0x0000000F) << 16);
+ break;
+ case R_S_16C_32: /* word2, word3. */
+ value = bfd_get_32 (abfd, (bfd_byte *) data + octets);
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0xFFFF0000) >> 16);
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ switch ((r_type & R_RELTO) >> 4)
+ {
+
+ case 0: /* R_ABS. */
+ plus_factor = Rvalue;
+ break;
+ case 1: /* R_PCREL. */
+ plus_factor = Rvalue -
+ (input_section->output_section->vma + input_section->output_offset);
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ if (neg)
+ {
+ if (plus_factor >= -value)
+ neg2pos = 1;
+ /* We need to change load/stor with negative
+ displ opcode to positive disp opcode (CR16C). */
+ }
+
+ value = value + (plus_factor >> code_factor);
+
+ switch (format)
+ {
+ case R_NUMBER:
+ switch (size)
+ {
+ case R_S_16C_08: /* One byte. */
+ if (value > (int) MAX_UBYTE || value < MIN_BYTE)
+ return bfd_reloc_overflow;
+ value &= 0xFF;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_16: /* Two bytes. */
+ if (value > (int) MAX_UWORD || value < MIN_WORD)
+ return bfd_reloc_overflow;
+ value &= 0xFFFF;
+ sword = value;
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_32: /* Four bytes. */
+ value &= 0xFFFFFFFF;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_DISPL:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1(4-7). */
+ if ((value - 32) > 32 || value < 2)
+ return bfd_reloc_overflow;
+ value >>= 1;
+ value--;
+ value &= 0xF;
+ value <<= 4;
+ value |= left_val;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_08: /* word1(0-3,8-11). */
+ if (value > 255 || value < -256 || value == 0x80)
+ return bfd_reloc_overflow;
+ value &= 0x1FF;
+ value >>= 1;
+ sword = value & 0x000F;
+ sword |= (value & 0x00F0) << 4;
+ sword |= left_val;
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_16: /* word2. */
+ if (value > 65535 || value < -65536)
+ return bfd_reloc_overflow;
+ value >>= 1;
+ value &= 0xFFFF;
+ value = ((value & 0x8000) >> 15) | ((value & 0x7FFF) << 1);
+ sword = value;
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_24_a: /* word1(0-7),word2. */
+ if (value > 16777215 || value < -16777216)
+ return bfd_reloc_overflow;
+ value &= 0x1FFFFFF;
+ value >>= 1;
+ value = ((value & 0x00007FFF) << 17) |
+ ((value & 0x00800000) >> 7) | ((value & 0x007F8000) >> 15);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_24: /* word2(0-3,8-11),word3. */
+ if (value > 16777215 || value < -16777216)
+ return bfd_reloc_overflow;
+ value &= 0x1FFFFFF;
+ value >>= 1;
+
+ value = ((value & 0x007FFFFF) << 1) | ((value & 0x00800000) >> 23);
+
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0x000F0000) >> 8) | ((value & 0x00F00000) >> 20);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_REGREL:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1(12-15) not scaled. */
+ if (value > 13 || value < 0)
+ return bfd_reloc_overflow;
+ value &= 0xF;
+ value |= left_val;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_04_a: /* word1(12-15) not scaled. */
+ if (value > 26 || value < 0)
+ return bfd_reloc_overflow;
+ value &= 0x1F;
+ value >>= 1;
+ value |= left_val;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_14: /* word1(4-5),word2(0-3,8-15). */
+ if (value < 0 || value > 16383)
+ return bfd_reloc_overflow;
+ value &= 0x3FFF;
+ value = ((value & 0x000000c0) << 24) |
+ ((value & 0x00003F00) << 16) |
+ ((value & 0x0000000F) << 16) | (value & 0x00000030);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_16: /* word2. */
+ if (value > 65535 || value < 0)
+ return bfd_reloc_overflow;
+ value &= 0xFFFF;
+ sword = value;
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_20: /* word2(8-11),word3. */
+ /* if (value > 1048575 || value < 0) RELOC_ERROR(1); */
+ value &= 0xFFFFF;
+ sword = value & 0x0000FFFF;
+ value = (value & 0x000F0000) >> 16;
+ value |= left_val;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets + 1);
+ if (neg2pos)
+ {
+ /* Change load/stor negative displ opcode
+ to load/stor positive displ opcode. */
+ value = bfd_get_8 (abfd, (char *) data + octets - 3);
+ value &= 0xF7;
+ value |= 0x2;
+ bfd_put_8 (abfd, (bfd_vma) value,
+ (unsigned char *) data + octets - 3);
+ }
+ return bfd_reloc_ok;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_ABS:
+ switch (size)
+ {
+ case R_S_16C_20: /* word1(0-3),word2. */
+ if (value > 1048575 || value < 0)
+ return bfd_reloc_overflow;
+ value &= 0xFFFFF;
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0x000F0000) >> 16);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_24: /* word2(0-3,8-11),word3. */
+ /* if (value > 16777215 || value < 0) RELOC_ERROR(1); */
+ value &= 0xFFFFFF;
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0x000F0000) >> 8) | ((value & 0x00F00000) >> 20);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+
+ case R_16C_IMMED:
+ switch (size)
+ {
+ case R_S_16C_04: /* word1/2(4-7). */
+ if (value > 15 || value < -1)
+ return bfd_reloc_overflow;
+ value &= 0xF;
+ value <<= 4;
+ value |= left_val;
+ bfd_put_8 (abfd, (bfd_vma) value, (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_16: /* word2. */
+ if (value > 32767 || value < -32768)
+ return bfd_reloc_overflow;
+ value &= 0xFFFF;
+ sword = value;
+ bfd_put_16 (abfd, (bfd_vma) sword,
+ (unsigned char *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_20: /* word1(0-3),word2. */
+ if (value > 1048575 || value < 0)
+ return bfd_reloc_overflow;
+ value &= 0xFFFFF;
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0x000F0000) >> 16);
+ value |= left_val;
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ case R_S_16C_32: /* word2, word3. */
+ value &= 0xFFFFFFFF;
+ value = ((value & 0x0000FFFF) << 16) |
+ ((value & 0xFFFF0000) >> 16);
+ bfd_put_32 (abfd, (bfd_vma) value, (bfd_byte *) data + octets);
+ return bfd_reloc_ok;
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+ break;
+ default:
+ return bfd_reloc_notsupported;
+ }
+}
+
+/* Relocate a CR16C ELF section. */
+
+static bfd_boolean
+elf32_cr16c_relocate_section (bfd *output_bfd,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ Elf_Internal_Rela *relocs,
+ Elf_Internal_Sym *local_syms,
+ asection **local_sections)
+{
+ Elf_Internal_Shdr *symtab_hdr;
+ struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *rel, *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ sym_hashes = elf_sym_hashes (input_bfd);
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ Elf_Internal_Sym *sym;
+ asection *sec;
+ struct elf_link_hash_entry *h;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+ r_type = ELF32_R_TYPE (rel->r_info);
+ howto = elf_howto_table + r_type;
+
+ if (info->relocatable)
+ {
+ /* This is a relocatable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sec = local_sections[r_symndx];
+ rel->r_addend += sec->output_offset + sym->st_value;
+ }
+ }
+
+ continue;
+ }
+
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sec = local_sections[r_symndx];
+ relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
+ }
+ else
+ {
+ h = sym_hashes[r_symndx - symtab_hdr->sh_info];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sec->output_section->vma + sec->output_offset);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset, TRUE)))
+ return FALSE;
+ relocation = 0;
+ }
+ }
+
+ r = cr16c_elf_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section,
+ contents, rel->r_offset,
+ relocation, rel->r_addend,
+ info, sec, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ const char *name;
+ const char *msg = (const char *) 0;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ {
+ name = (bfd_elf_string_from_elf_section
+ (input_bfd, symtab_hdr->sh_link, sym->st_name));
+ if (name == NULL || *name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
+
+ switch (r)
+ {
+ case bfd_reloc_overflow:
+ if (!((*info->callbacks->reloc_overflow)
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return FALSE;
+ break;
+
+ case bfd_reloc_undefined:
+ if (!((*info->callbacks->undefined_symbol)
+ (info, name, input_bfd, input_section,
+ rel->r_offset, TRUE)))
+ return FALSE;
+ break;
+
+ case bfd_reloc_outofrange:
+ msg = _("internal error: out of range error");
+ goto common_error;
+
+ case bfd_reloc_notsupported:
+ msg = _("internal error: unsupported relocation error");
+ goto common_error;
+
+ case bfd_reloc_dangerous:
+ msg = _("internal error: dangerous error");
+ goto common_error;
+
+ default:
+ msg = _("internal error: unknown error");
+ /* fall through */
+
+ common_error:
+ if (!((*info->callbacks->warning)
+ (info, msg, name, input_bfd, input_section,
+ rel->r_offset)))
+ return FALSE;
+ break;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+static asection *
+elf32_cr16c_gc_mark_hook (asection *sec,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ Elf_Internal_Rela *rel,
+ struct elf_link_hash_entry *h,
+ Elf_Internal_Sym *sym)
+{
+ if (h != NULL)
+ {
+ switch (ELF32_R_TYPE (rel->r_info))
+ {
+
+ default:
+ switch (h->root.type)
+ {
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ return h->root.u.def.section;
+
+ case bfd_link_hash_common:
+ return h->root.u.c.p->section;
+
+ default:
+ break;
+ }
+ }
+ }
+ else
+ {
+ return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
+ }
+
+ return NULL;
+}
+
+/* Update the got entry reference counts for the section being removed. */
+
+static bfd_boolean
+elf32_cr16c_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
+{
+ /* We don't support garbage collection of GOT and PLT relocs yet. */
+ return TRUE;
+}
+
+/* CR16C ELF uses three common sections:
+ One is for default common symbols (placed in usual common section).
+ Second is for near common symbols (placed in "ncommon" section).
+ Third is for far common symbols (placed in "fcommon" section).
+ The following implementation is based on elf32-mips architecture */
+
+static asection cr16c_elf_fcom_section;
+static asymbol cr16c_elf_fcom_symbol;
+static asymbol * cr16c_elf_fcom_symbol_ptr;
+static asection cr16c_elf_ncom_section;
+static asymbol cr16c_elf_ncom_symbol;
+static asymbol * cr16c_elf_ncom_symbol_ptr;
+
+/* Given a BFD section, try to locate the
+ corresponding ELF section index. */
+
+static bfd_boolean
+elf32_cr16c_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ int *retval)
+{
+ if (strcmp (bfd_get_section_name (abfd, sec), ".fcommon") == 0)
+ *retval = SHN_CR16C_FCOMMON;
+ else if (strcmp (bfd_get_section_name (abfd, sec), ".ncommon") == 0)
+ *retval = SHN_CR16C_NCOMMON;
+ else
+ return FALSE;
+
+ return TRUE;
+}
+
+/* Handle the special CR16C section numbers that a symbol may use. */
+
+static void
+elf32_cr16c_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
+ asymbol *asym)
+{
+ elf_symbol_type *elfsym = (elf_symbol_type *) asym;
+ unsigned int indx;
+
+ indx = elfsym->internal_elf_sym.st_shndx;
+
+ switch (indx)
+ {
+ case SHN_CR16C_FCOMMON:
+ if (cr16c_elf_fcom_section.name == NULL)
+ {
+ /* Initialize the far common section. */
+ cr16c_elf_fcom_section.name = ".fcommon";
+ cr16c_elf_fcom_section.flags = SEC_IS_COMMON | SEC_ALLOC;
+ cr16c_elf_fcom_section.output_section = &cr16c_elf_fcom_section;
+ cr16c_elf_fcom_section.symbol = &cr16c_elf_fcom_symbol;
+ cr16c_elf_fcom_section.symbol_ptr_ptr = &cr16c_elf_fcom_symbol_ptr;
+ cr16c_elf_fcom_symbol.name = ".fcommon";
+ cr16c_elf_fcom_symbol.flags = BSF_SECTION_SYM;
+ cr16c_elf_fcom_symbol.section = &cr16c_elf_fcom_section;
+ cr16c_elf_fcom_symbol_ptr = &cr16c_elf_fcom_symbol;
+ }
+ asym->section = &cr16c_elf_fcom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+ case SHN_CR16C_NCOMMON:
+ if (cr16c_elf_ncom_section.name == NULL)
+ {
+ /* Initialize the far common section. */
+ cr16c_elf_ncom_section.name = ".ncommon";
+ cr16c_elf_ncom_section.flags = SEC_IS_COMMON | SEC_ALLOC;
+ cr16c_elf_ncom_section.output_section = &cr16c_elf_ncom_section;
+ cr16c_elf_ncom_section.symbol = &cr16c_elf_ncom_symbol;
+ cr16c_elf_ncom_section.symbol_ptr_ptr = &cr16c_elf_ncom_symbol_ptr;
+ cr16c_elf_ncom_symbol.name = ".ncommon";
+ cr16c_elf_ncom_symbol.flags = BSF_SECTION_SYM;
+ cr16c_elf_ncom_symbol.section = &cr16c_elf_ncom_section;
+ cr16c_elf_ncom_symbol_ptr = &cr16c_elf_ncom_symbol;
+ }
+ asym->section = &cr16c_elf_ncom_section;
+ asym->value = elfsym->internal_elf_sym.st_size;
+ break;
+ }
+}
+
+/* Hook called by the linker routine which adds symbols from an object
+ file. We must handle the special cr16c section numbers here. */
+
+static bfd_boolean
+elf32_cr16c_add_symbol_hook (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const Elf_Internal_Sym *sym,
+ const char **namep ATTRIBUTE_UNUSED,
+ flagword *flagsp ATTRIBUTE_UNUSED,
+ asection **secp,
+ bfd_vma *valp)
+{
+ unsigned int indx = sym->st_shndx;
+
+ switch (indx)
+ {
+ case SHN_CR16C_FCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".fcommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+ case SHN_CR16C_NCOMMON:
+ *secp = bfd_make_section_old_way (abfd, ".ncommon");
+ (*secp)->flags |= SEC_IS_COMMON;
+ *valp = sym->st_size;
+ break;
+ }
+
+ return TRUE;
+}
+
+static bfd_boolean
+elf32_cr16c_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED,
+ Elf_Internal_Sym *sym,
+ asection *input_sec,
+ struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
+{
+ /* If we see a common symbol, which implies a relocatable link, then
+ if a symbol was in a special common section in an input file, mark
+ it as a special common in the output file. */
+
+ if (sym->st_shndx == SHN_COMMON)
+ {
+ if (strcmp (input_sec->name, ".fcommon") == 0)
+ sym->st_shndx = SHN_CR16C_FCOMMON;
+ else if (strcmp (input_sec->name, ".ncommon") == 0)
+ sym->st_shndx = SHN_CR16C_NCOMMON;
+ }
+
+ return TRUE;
+}
+
+/* Definitions for setting CR16C target vector. */
+#define TARGET_LITTLE_SYM bfd_elf32_cr16c_vec
+#define TARGET_LITTLE_NAME "elf32-cr16c"
+#define ELF_ARCH bfd_arch_cr16c
+#define ELF_MACHINE_CODE EM_CR
+#define ELF_MAXPAGESIZE 0x1
+#define elf_symbol_leading_char '_'
+
+#define bfd_elf32_bfd_reloc_type_lookup elf_cr16c_reloc_type_lookup
+#define elf_info_to_howto elf_cr16c_info_to_howto
+#define elf_info_to_howto_rel elf_cr16c_info_to_howto_rel
+#define elf_backend_relocate_section elf32_cr16c_relocate_section
+#define elf_backend_gc_mark_hook elf32_cr16c_gc_mark_hook
+#define elf_backend_gc_sweep_hook elf32_cr16c_gc_sweep_hook
+#define elf_backend_symbol_processing elf32_cr16c_symbol_processing
+#define elf_backend_section_from_bfd_section elf32_cr16c_section_from_bfd_section
+#define elf_backend_add_symbol_hook elf32_cr16c_add_symbol_hook
+#define elf_backend_link_output_symbol_hook elf32_cr16c_link_output_symbol_hook
+
+#define elf_backend_can_gc_sections 1
+
+#include "elf32-target.h"
--- /dev/null
+/* CR16C ELF support for BFD.
+ Copyright 2004 Free Software Foundation, Inc.
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _ELF_CR16C_H
+#define _ELF_CR16C_H
+
+#include "bfd.h"
+#include "elf/reloc-macros.h"
+
+/* Creating indices for reloc_map_index array. */
+START_RELOC_NUMBERS (elf_cr16c_reloc_type)
+ RELOC_NUMBER (RINDEX_16C_NUM08, 0)
+ RELOC_NUMBER (RINDEX_16C_NUM08_C, 1)
+ RELOC_NUMBER (RINDEX_16C_NUM16, 2)
+ RELOC_NUMBER (RINDEX_16C_NUM16_C, 3)
+ RELOC_NUMBER (RINDEX_16C_NUM32, 4)
+ RELOC_NUMBER (RINDEX_16C_NUM32_C, 5)
+ RELOC_NUMBER (RINDEX_16C_DISP04, 6)
+ RELOC_NUMBER (RINDEX_16C_DISP04_C, 7)
+ RELOC_NUMBER (RINDEX_16C_DISP08, 8)
+ RELOC_NUMBER (RINDEX_16C_DISP08_C, 9)
+ RELOC_NUMBER (RINDEX_16C_DISP16, 10)
+ RELOC_NUMBER (RINDEX_16C_DISP16_C, 11)
+ RELOC_NUMBER (RINDEX_16C_DISP24, 12)
+ RELOC_NUMBER (RINDEX_16C_DISP24_C, 13)
+ RELOC_NUMBER (RINDEX_16C_DISP24a, 14)
+ RELOC_NUMBER (RINDEX_16C_DISP24a_C, 15)
+ RELOC_NUMBER (RINDEX_16C_REG04, 16)
+ RELOC_NUMBER (RINDEX_16C_REG04_C, 17)
+ RELOC_NUMBER (RINDEX_16C_REG04a, 18)
+ RELOC_NUMBER (RINDEX_16C_REG04a_C, 19)
+ RELOC_NUMBER (RINDEX_16C_REG14, 20)
+ RELOC_NUMBER (RINDEX_16C_REG14_C, 21)
+ RELOC_NUMBER (RINDEX_16C_REG16, 22)
+ RELOC_NUMBER (RINDEX_16C_REG16_C, 23)
+ RELOC_NUMBER (RINDEX_16C_REG20, 24)
+ RELOC_NUMBER (RINDEX_16C_REG20_C, 25)
+ RELOC_NUMBER (RINDEX_16C_ABS20, 26)
+ RELOC_NUMBER (RINDEX_16C_ABS20_C, 27)
+ RELOC_NUMBER (RINDEX_16C_ABS24, 28)
+ RELOC_NUMBER (RINDEX_16C_ABS24_C, 29)
+ RELOC_NUMBER (RINDEX_16C_IMM04, 30)
+ RELOC_NUMBER (RINDEX_16C_IMM04_C, 31)
+ RELOC_NUMBER (RINDEX_16C_IMM16, 32)
+ RELOC_NUMBER (RINDEX_16C_IMM16_C, 33)
+ RELOC_NUMBER (RINDEX_16C_IMM20, 34)
+ RELOC_NUMBER (RINDEX_16C_IMM20_C, 35)
+ RELOC_NUMBER (RINDEX_16C_IMM24, 36)
+ RELOC_NUMBER (RINDEX_16C_IMM24_C, 37)
+ RELOC_NUMBER (RINDEX_16C_IMM32, 38)
+ RELOC_NUMBER (RINDEX_16C_IMM32_C, 39)
+END_RELOC_NUMBERS (RINDEX_16C_MAX)
+
+/* CR16C Relocation Types ('cr_reloc_type' entry in the reloc_map structure).
+ The relocation constant name is determined as follows :
+
+ R_16C_<format><size>[_C]
+
+ Where :
+
+ <format> is one of the following:
+ NUM - R_NUMBER mnemonic,
+ DISP - R_16C_DISPL mnemonic,
+ REG - R_16C_REGREL mnemonic,
+ ABS - R_16C_ABS mnemonic,
+ IMM - R_16C_IMMED mnemonic,
+ <size> stands for R_S_16C_<size>
+ _C means 'code label' and is only added when R_ADDRTYPE subfield
+ is of type R_CODE_ADDR. */
+
+/* The table below shows what the hex digits in the definition of the
+ relocation type constants correspond to.
+ ------------------------------------------------------------------
+ R_SIZESP R_FORMAT R_RELTO R_ADDRTYPE
+ ------------------------------------------------------------------ */
+/* R_S_16C_08 R_NUMBER R_ABS R_ADDRESS */
+#define R_16C_NUM08 0X0001
+
+/* R_S_16C_08 R_NUMBER R_ABS R_CODE_ADDR */
+#define R_16C_NUM08_C 0X0006
+
+/* R_S_16C_16 R_NUMBER R_ABS R_ADDRESS */
+#define R_16C_NUM16 0X1001
+
+/* R_S_16C_16 R_NUMBER R_ABS R_CODE_ADDR */
+#define R_16C_NUM16_C 0X1006
+
+/* R_S_16C_32 R_NUMBER R_ABS R_ADDRESS */
+#define R_16C_NUM32 0X2001
+
+/* R_S_16C_32 R_NUMBER R_ABS R_CODE_ADDR */
+#define R_16C_NUM32_C 0X2006
+
+/* R_S_16C_04 R_16C_DISPL R_PCREL R_ADDRESS */
+#define R_16C_DISP04 0X5411
+
+/* R_S_16C_04 R_16C_DISPL R_PCREL R_CODE_ADDR */
+#define R_16C_DISP04_C 0X5416
+
+/* R_S_16C_08 R_16C_DISPL R_PCREL R_ADDRESS */
+#define R_16C_DISP08 0X0411
+
+/* R_S_16C_08 R_16C_DISPL R_PCREL R_CODE_ADDR */
+#define R_16C_DISP08_C 0X0416
+
+/* R_S_16C_16 R_16C_DISPL R_PCREL R_ADDRESS */
+#define R_16C_DISP16 0X1411
+
+/* R_S_16C_16 R_16C_DISPL R_PCREL R_CODE_ADDR */
+#define R_16C_DISP16_C 0X1416
+
+/* R_S_16C_24 R_16C_DISPL R_PCREL R_ADDRESS */
+#define R_16C_DISP24 0X7411
+
+/* R_S_16C_24 R_16C_DISPL R_PCREL R_CODE_ADDR */
+#define R_16C_DISP24_C 0X7416
+
+/* R_S_16C_24a R_16C_DISPL R_PCREL R_ADDRESS */
+#define R_16C_DISP24a 0X6411
+
+/* R_S_16C_24a R_16C_DISPL R_PCREL R_CODE_ADDR */
+#define R_16C_DISP24a_C 0X6416
+
+/* R_S_16C_04 R_16C_REGREL R_ABS R_ADDRESS */
+#define R_16C_REG04 0X5201
+
+/* R_S_16C_04 R_16C_REGREL R_ABS R_CODE_ADDR */
+#define R_16C_REG04_C 0X5206
+
+/* R_S_16C_04_a R_16C_REGREL R_ABS R_ADDRESS */
+#define R_16C_REG04a 0X4201
+
+/* R_S_16C_04_a R_16C_REGREL R_ABS R_CODE_ADDR */
+#define R_16C_REG04a_C 0X4206
+
+/* R_S_16C_14 R_16C_REGREL R_ABS R_ADDRESS */
+#define R_16C_REG14 0X3201
+
+/* R_S_16C_14 R_16C_REGREL R_ABS R_CODE_ADDR */
+#define R_16C_REG14_C 0X3206
+
+/* R_S_16C_16 R_16C_REGREL R_ABS R_ADDRESS */
+#define R_16C_REG16 0X1201
+
+/* R_S_16C_16 R_16C_REGREL R_ABS R_CODE_ADDR */
+#define R_16C_REG16_C 0X1206
+
+/* R_S_16C_20 R_16C_REGREL R_ABS R_ADDRESS */
+#define R_16C_REG20 0X8201
+
+/* R_S_16C_20 R_16C_REGREL R_ABS R_CODE_ADDR */
+#define R_16C_REG20_C 0X8206
+
+/* R_S_16C_20 R_16C_ABS R_ABS R_ADDRESS */
+#define R_16C_ABS20 0X8101
+
+/* R_S_16C_20 R_16C_ABS R_ABS R_CODE_ADDR */
+#define R_16C_ABS20_C 0X8106
+
+/* R_S_16C_24 R_16C_ABS R_ABS R_ADDRESS */
+#define R_16C_ABS24 0X7101
+
+/* R_S_16C_24 R_16C_ABS R_ABS R_CODE_ADDR */
+#define R_16C_ABS24_C 0X7106
+
+/* R_S_16C_04 R_16C_IMMED R_ABS R_ADDRESS */
+#define R_16C_IMM04 0X5301
+
+/* R_S_16C_04 R_16C_IMMED R_ABS R_CODE_ADDR */
+#define R_16C_IMM04_C 0X5306
+
+/* R_S_16C_16 R_16C_IMMED R_ABS R_ADDRESS */
+#define R_16C_IMM16 0X1301
+
+/* R_S_16C_16 R_16C_IMMED R_ABS R_CODE_ADDR */
+#define R_16C_IMM16_C 0X1306
+
+/* R_S_16C_20 R_16C_IMMED R_ABS R_ADDRESS */
+#define R_16C_IMM20 0X8301
+
+/* R_S_16C_20 R_16C_IMMED R_ABS R_CODE_ADDR */
+#define R_16C_IMM20_C 0X8306
+
+/* R_S_16C_24 R_16C_IMMED R_ABS R_ADDRESS */
+#define R_16C_IMM24 0X7301
+
+/* R_S_16C_24 R_16C_IMMED R_ABS R_CODE_ADDR */
+#define R_16C_IMM24_C 0X7306
+
+/* R_S_16C_32 R_16C_IMMED R_ABS R_ADDRESS */
+#define R_16C_IMM32 0X2301
+
+/* R_S_16C_32 R_16C_IMMED R_ABS R_CODE_ADDR */
+#define R_16C_IMM32_C 0X2306
+
+
+/* Relocation item type. */
+#define R_ADDRTYPE 0x000f
+#define R_ADDRESS 0x0001 /* Take address of symbol. */
+#define R_CODE_ADDR 0x0006 /* Take address of symbol divided by 2. */
+
+/* Relocation action. */
+#define R_RELTO 0x00f0
+#define R_ABS 0x0000 /* Keep symbol's address as such. */
+#define R_PCREL 0x0010 /* Subtract the pc address of hole. */
+
+/* Relocation item data format. */
+#define R_FORMAT 0x0f00
+#define R_NUMBER 0x0000 /* Retain as two's complement value. */
+#define R_16C_DISPL 0x0400 /* CR16C displacement type. */
+#define R_16C_ABS 0x0100 /* CR16C absolute type. */
+#define R_16C_REGREL 0x0200 /* CR16C register-relative type. */
+#define R_16C_IMMED 0x0300 /* CR16C immediate type. */
+
+/* Relocation item size. */
+#define R_SIZESP 0xf000
+#define R_S_16C_04 0x5000
+#define R_S_16C_04_a 0x4000
+#define R_S_16C_08 0x0000
+#define R_S_16C_14 0x3000
+#define R_S_16C_16 0x1000
+#define R_S_16C_20 0x8000
+#define R_S_16C_24_a 0x6000
+#define R_S_16C_24 0x7000
+#define R_S_16C_32 0x2000
+
+
+/* Processor specific section indices. These sections do not actually
+ exist. Symbols with a st_shndx field corresponding to one of these
+ values have a special meaning. */
+
+/* Far common symbol. */
+#define SHN_CR16C_FCOMMON 0xff00
+#define SHN_CR16C_NCOMMON 0xff01
+
+typedef struct reloc_map
+{
+ unsigned short cr_reloc_type; /* CR relocation type. */
+ bfd_reloc_code_real_type bfd_reloc_enum; /* BFD relocation enum. */
+} RELOC_MAP;
+
+#endif /* _ELF_CR16C_H */
projects / binutils-gdb.git / commitdiff