Add (linker) support for CR16C processor

3 files changed, 265 insertions, 0 deletions

diff --git a/include/elf/ChangeLog b/include/elf/ChangeLog
index 385b857..28ec205 100644
--- a/include/elf/ChangeLog
+++ b/include/elf/ChangeLog
@@ -1,3 +1,9 @@
+2004-30-30  Galit Heller  <Galit.Heller@nsc.com>
+            Tomer Levi  <Tomer.Levi@nsc.com>
+
+	* common.h (EM_CR): Define.
+	* cr16c.h: New file.
+
 2004-03-23  Paul Brook  <paul@codesourcery.com>
 
 	* arm.h (EF_ERM_BE8, EF_ARM_LE8, EF_ARM_EABI_VER3): Add.
diff --git a/include/elf/common.h b/include/elf/common.h
index bf233f6..8ebc2cf 100644
--- a/include/elf/common.h
+++ b/include/elf/common.h
@@ -180,6 +180,7 @@
 #define EM_ARC_A5	 93	/* ARC Cores Tangent-A5 */
 #define EM_XTENSA	 94	/* Tensilica Xtensa Architecture */
 #define EM_IP2K		101	/* Ubicom IP2022 micro controller */
+#define EM_CR		103	/* National Semiconductor CompactRISC */
 #define EM_MSP430	105	/* TI msp430 micro controller */
 
 /* If it is necessary to assign new unofficial EM_* values, please pick large
diff --git a/include/elf/cr16c.h b/include/elf/cr16c.h
new file mode 100644
index 0000000..1a91afe
--- /dev/null
+++ b/include/elf/cr16c.h
@@ -0,0 +1,258 @@
+/* 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 */