[deliverable/binutils-gdb.git] / include / coff / ti.h

/* COFF information for TI COFF support.  Definitions in this file should be
   customized in a target-specific file, and then this file included (see
   tic54x.h for an example).
   
   Copyright 2000, 2001, 2002, 2003, 2005, 2008, 2009, 2010
   Free Software Foundation, Inc.

   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 3 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#ifndef COFF_TI_H
#define COFF_TI_H

/* Note "coff/external.h is not used because TI adds extra fields to the structures.  */

/********************** FILE HEADER **********************/

struct external_filehdr
  {
    char f_magic[2];	/* magic number			*/
    char f_nscns[2];	/* number of sections		*/
    char f_timdat[4];	/* time & date stamp		*/
    char f_symptr[4];	/* file pointer to symtab	*/
    char f_nsyms[4];	/* number of symtab entries	*/
    char f_opthdr[2];	/* sizeof(optional hdr)		*/
    char f_flags[2];	/* flags			*/
    char f_target_id[2];    /* magic no. (TI COFF-specific) */
  };

/* COFF0 has magic number in f_magic, and omits f_target_id from the file
   header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2
   and the target-specific magic number is found in f_target_id */ 

#define TICOFF0MAGIC    TI_TARGET_ID
#define TICOFF1MAGIC    0x00C1
#define TICOFF2MAGIC    0x00C2
#define TICOFF_AOUT_MAGIC    0x0108 /* magic number in optional header */
#define TICOFF          1 /* customize coffcode.h */

/* The target_id field changes depending on the particular CPU target */
/* for COFF0, the target id appeared in f_magic, where COFFX magic is now */
#ifndef TI_TARGET_ID
#error "TI_TARGET_ID needs to be defined for your CPU"
#endif

/* Which bfd_arch to use... */
#ifndef TICOFF_TARGET_ARCH
#error "TICOFF_TARGET_ARCH needs to be defined for your CPU"
#endif

#ifndef TICOFF_TARGET_MACHINE_GET
#define TICOFF_TARGET_MACHINE_GET(FLAGS) 0
#endif

#ifndef TICOFF_TARGET_MACHINE_SET
#define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE)
#endif

/* Default to COFF2 for file output */
#ifndef TICOFF_DEFAULT_MAGIC
#define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC
#endif

/* This value is made available in the rare case where a bfd is unavailable */
#ifndef OCTETS_PER_BYTE_POWER
#error "OCTETS_PER_BYTE_POWER not defined for this CPU"
#else
#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
#endif

/* default alignment is on a byte (not octet!) boundary */
#ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0
#endif

/* TI COFF encodes the section alignment in the section header flags */
#define COFF_ALIGN_IN_SECTION_HEADER 1
#define COFF_ALIGN_IN_S_FLAGS 1
/* requires a power-of-two argument */
#define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags |= (((unsigned)(X)&0xF)<<8))
/* result is a power of two */
#define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF)

#define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0)
#define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01)

#define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC)
#define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC || (x).f_target_id != TI_TARGET_ID)
#define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC || (x).f_target_id != TI_TARGET_ID)

/* we need to read/write an extra field in the coff file header */
#ifndef COFF_ADJUST_FILEHDR_IN_POST
#define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \
  do									\
    {									\
      if (!COFF0_P (abfd))						\
	((struct internal_filehdr *)(dst))->f_target_id =		\
	  H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id);		\
    }									\
  while (0)
#endif

#ifndef COFF_ADJUST_FILEHDR_OUT_POST
#define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \
  do									 \
    {									 \
      if (!COFF0_P (abfd))						 \
	H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \
		 ((FILHDR *)(dst))->f_target_id);			 \
    }									 \
  while (0)
#endif

#define	FILHDR	struct external_filehdr
#define	FILHSZ	22
#define FILHSZ_V0 20                /* COFF0 omits target_id field */

/* File header flags */
#define	F_RELFLG	(0x0001)
#define	F_EXEC		(0x0002)
#define	F_LNNO		(0x0004)
#define F_VERS          (0x0010) /* TMS320C4x code */
/* F_LSYMS needs to be redefined in your source file */
#define	F_LSYMS_TICOFF	(0x0010) /* normal COFF is 0x8 */

#define F_10            0x00    /* file built for TMS320C1x devices */
#define F_20            0x10    /* file built for TMS320C2x devices */
#define F_25            0x20    /* file built for TMS320C2x/C5x devices */
#define F_LENDIAN       0x0100  /* 16 bits/word, LSB first */
#define F_SYMMERGE      0x1000  /* duplicate symbols were removed */

/********************** OPTIONAL HEADER **********************/


typedef struct 
{
  char 	magic[2];		/* type of file (0x108) 		*/
  char	vstamp[2];		/* version stamp			*/
  char	tsize[4];		/* text size in bytes, padded to FW bdry*/
  char	dsize[4];		/* initialized data "  "		*/
  char	bsize[4];		/* uninitialized data "   "		*/
  char	entry[4];		/* entry pt.				*/
  char 	text_start[4];		/* base of text used for this file */
  char 	data_start[4];		/* base of data used for this file */
}
AOUTHDR;


#define AOUTHDRSZ 28
#define AOUTSZ 28


/********************** SECTION HEADER **********************/
/* COFF0, COFF1 */
struct external_scnhdr_v01 {
	char		s_name[8];	/* section name			*/
	char		s_paddr[4];	/* physical address, aliased s_nlib */
	char		s_vaddr[4];	/* virtual address		*/
	char		s_size[4];	/* section size (in WORDS)      */
	char		s_scnptr[4];	/* file ptr to raw data for section */
	char		s_relptr[4];	/* file ptr to relocation	*/
	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
	char		s_nreloc[2];	/* number of relocation entries	*/
	char		s_nlnno[2];	/* number of line number entries*/
	char		s_flags[2];	/* flags			*/
        char            s_reserved[1];  /* reserved                     */ 
        char            s_page[1];      /* section page number (LOAD)   */
};

/* COFF2 */
struct external_scnhdr {
	char		s_name[8];	/* section name			*/
	char		s_paddr[4];	/* physical address, aliased s_nlib */
	char		s_vaddr[4];	/* virtual address		*/
	char		s_size[4];	/* section size (in WORDS)      */
	char		s_scnptr[4];	/* file ptr to raw data for section */
	char		s_relptr[4];	/* file ptr to relocation	*/
	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
	char		s_nreloc[4];	/* number of relocation entries	*/
	char		s_nlnno[4];	/* number of line number entries*/
	char		s_flags[4];	/* flags			*/
        char            s_reserved[2];  /* reserved                     */ 
        char            s_page[2];      /* section page number (LOAD)   */
};

/*
 * Special section flags
 */

/* TI COFF defines these flags; 
   STYP_CLINK: the section should be excluded from the final
   linker output if there are no references found to any symbol in the section
   STYP_BLOCK: the section should be blocked, i.e. if the section would cross
   a page boundary, it is started at a page boundary instead.
   TI COFF puts the section alignment power of two in the section flags
   e.g. 2**N is alignment, flags |= (N & 0xF) << 8
*/ 
#define STYP_CLINK      (0x4000)
#define STYP_BLOCK      (0x1000)
#define STYP_ALIGN      (0x0F00) /* TI COFF stores section alignment here */

#define	SCNHDR_V01 struct external_scnhdr_v01
#define SCNHDR struct external_scnhdr
#define	SCNHSZ_V01 40                  /* for v0 and v1 */
#define SCNHSZ 48

/* COFF2 changes the offsets and sizes of these fields 
   Assume we're dealing with the COFF2 scnhdr structure, and adjust
   accordingly.  Note: The GNU C versions of some of these macros
   are necessary in order to avoid compile time warnings triggered
   gcc's array bounds checking.  The PUT_SCNHDR_PAGE macro also has
   the advantage on not evaluating LOC twice.  */

#define GET_SCNHDR_NRELOC(ABFD, LOC) \
  (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC))
#define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \
  (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC))
#ifdef __GNUC__
#define GET_SCNHDR_NLNNO(ABFD, LOC) \
  ({ \
    int nlnno;		\
    char * ptr = (LOC); \
    if (COFF2_P (ABFD)) \
      nlnno = H_GET_32 (ABFD, ptr); \
    else \
      nlnno = H_GET_16 (ABFD, ptr - 2); \
    nlnno; \
  })
#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
  do \
    { \
      char * ptr = (LOC); \
      if (COFF2_P (ABFD)) \
	H_PUT_32 (ABFD, VAL, ptr); \
      else \
	H_PUT_16 (ABFD, VAL, ptr - 2); \
    } \
  while (0)
#define GET_SCNHDR_FLAGS(ABFD, LOC) \
  ({ \
    int flags; \
    char * ptr = (LOC); \
    if (COFF2_P (ABFD)) \
      flags = H_GET_32 (ABFD, ptr); \
    else \
      flags = H_GET_16 (ABFD, ptr - 4); \
    flags; \
  })
#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \
  do \
    { \
      char * ptr = (LOC); \
      if (COFF2_P (ABFD)) \
	H_PUT_32 (ABFD, VAL, ptr); \
      else \
	H_PUT_16 (ABFD, VAL, ptr - 4); \
    } \
  while (0)
#define GET_SCNHDR_PAGE(ABFD, LOC) \
  ({ \
    unsigned page; \
    char * ptr = (LOC); \
    if (COFF2_P (ABFD)) \
      page = H_GET_16 (ABFD, ptr); \
    else \
      page = (unsigned) H_GET_8 (ABFD, ptr - 7); \
    page; \
  })
/* On output, make sure that the "reserved" field is zero.  */
#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
  do \
    { \
      char * ptr = (LOC); \
      if (COFF2_P (ABFD)) \
	H_PUT_16 (ABFD, VAL, ptr); \
      else \
	{ \
	  H_PUT_8 (ABFD, VAL, ptr - 7); \
	  H_PUT_8 (ABFD, 0, ptr - 8); \
	} \
    } \
  while (0)
#else
#define GET_SCNHDR_NLNNO(ABFD, LOC) \
  (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2))
#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
  (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 2))
#define GET_SCNHDR_FLAGS(ABFD, LOC) \
  (COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4))
#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \
  (COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4))
#define GET_SCNHDR_PAGE(ABFD, LOC) \
  (COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7))
/* On output, make sure that the "reserved" field is zero.  */
#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
  (COFF2_P (ABFD) \
   ? H_PUT_16 (ABFD, VAL, LOC) \
   : H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8))
#endif


/* TI COFF stores section size as number of bytes (address units, not octets),
   so adjust to be number of octets, which is what BFD expects */ 
#define GET_SCNHDR_SIZE(ABFD, SZP) \
  (H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD))
#define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \
  H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD), SZP)

#define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \
  do									\
    {									\
      ((struct internal_scnhdr *)(INT))->s_page =			\
	GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page);		\
    }									\
   while (0)

/* The entire scnhdr may not be assigned.
   Ensure that everything is initialized.  */
#define COFF_ADJUST_SCNHDR_OUT_PRE(ABFD, INT, EXT)	\
  do							\
    {							\
      memset((EXT), 0, sizeof (SCNHDR));		\
    }							\
  while (0)

/* The line number and reloc overflow checking in coff_swap_scnhdr_out in
   coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc.
   Due to different sized v0/v1/v2 section headers, we have to re-write these
   fields.
 */
#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \
  do									   \
    {									   \
      PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno,  \
			((SCNHDR *)(EXT))->s_nlnno);			   \
      PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\
			 ((SCNHDR *)(EXT))->s_nreloc);			   \
      PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags,  \
			((SCNHDR *)(EXT))->s_flags);			   \
      PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page,    \
		       ((SCNHDR *)(EXT))->s_page);			   \
    }									   \
   while (0)

/*
 * names of "special" sections
 */
#define _TEXT	".text"
#define _DATA	".data"
#define _BSS	".bss"
#define _CINIT  ".cinit"            /* initialized C data */
#define _SCONST  ".const"           /* constants */
#define _SWITCH ".switch"           /* switch tables */
#define _STACK  ".stack"            /* C stack */
#define _SYSMEM ".sysmem"           /* used for malloc et al. syscalls */

/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.
 * Line numbers are grouped on a per function basis; first entry in a function
 * grouping will have l_lnno = 0 and in place of physical address will be the
 * symbol table index of the function name.
 */
struct external_lineno {
  union {
    char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/
    char l_paddr[4];	/* (physical) address of line number	*/
  } l_addr;
  char l_lnno[2];	/* line number		*/
};

#define	LINENO	struct external_lineno
#define	LINESZ	6


/********************** SYMBOLS **********************/

/* NOTE: this is what a local label looks like in assembly source; what it
   looks like in COFF output is undefined */
#define TICOFF_LOCAL_LABEL_P(NAME) \
((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \
 || NAME[strlen(NAME)-1] == '?')

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
#define E_FILNMLEN	14	/* # characters in a file name		*/
#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

struct external_syment 
{
  union {
    char e_name[E_SYMNMLEN];
    struct {
      char e_zeroes[4];
      char e_offset[4];
    } e;
  } e;
  char e_value[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
};


#define N_BTMASK	(017)
#define N_TMASK		(060)
#define N_BTSHFT	(4)
#define N_TSHIFT	(2)
  

union external_auxent {
  struct {
	char x_tagndx[4];	/* str, un, or enum tag indx */
	union {
	  struct {
		char  x_lnno[2]; /* declaration line number */
		char  x_size[2]; /* str/union/array size */
	  } x_lnsz;
	  char x_fsize[4];	/* size of function */
	} x_misc;
	union {
	  struct {		/* if ISFCN, tag, or .bb */
		char x_lnnoptr[4];	/* ptr to fcn line # */
		char x_endndx[4];	/* entry ndx past block end */
	  } x_fcn;
	  struct {		/* if ISARY, up to 4 dimen. */
		char x_dimen[E_DIMNUM][2];
	  } x_ary;
	} x_fcnary;
	char x_tvndx[2];		/* tv index */
  } x_sym;
  
  union {
	char x_fname[E_FILNMLEN];
	struct {
	  char x_zeroes[4];
	  char x_offset[4];
	} x_n;
  } x_file;
  
  struct {
	char x_scnlen[4];			/* section length */
	char x_nreloc[2];	/* # relocation entries */
	char x_nlinno[2];	/* # line numbers */
  } x_scn;
  
  struct {
	char x_tvfill[4];	/* tv fill value */
	char x_tvlen[2];	/* length of .tv */
	char x_tvran[2][2];	/* tv range */
  } x_tv;		/* info about .tv section (in auxent of symbol .tv)) */
  

};

#define	SYMENT	struct external_syment
#define	SYMESZ	18	
#define	AUXENT	union external_auxent
#define	AUXESZ	18

/* section lengths are in target bytes (not host bytes) */
#define GET_SCN_SCNLEN(ABFD, EXT) \
  (H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD))
#define PUT_SCN_SCNLEN(ABFD, INT, EXT) \
  H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD), (EXT)->x_scn.x_scnlen)

/* lnsz size is in bits in COFF file, in bytes in BFD */
#define GET_LNSZ_SIZE(abfd, ext) \
 (H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (in_class != C_FIELD ? 8 : 1))

#define PUT_LNSZ_SIZE(abfd, in, ext) \
  H_PUT_16 (abfd, ((in_class != C_FIELD) ? (in) * 8 : (in)), \
	   ext->x_sym.x_misc.x_lnsz.x_size)
 
/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes 
   Also put the load page flag of the section into the symbol value if it's an
   address.  */
#ifndef NEEDS_PAGE
#define NEEDS_PAGE(X) 0
#define PAGE_MASK 0
#endif
#define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \
  do									\
    {									\
      struct internal_syment *dst = (struct internal_syment *)(INT);	\
      if (dst->n_sclass == C_MOS || dst->n_sclass == C_MOU)		\
	dst->n_value /= 8;						\
      else if (NEEDS_PAGE (dst->n_sclass)) {                            \
        asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \
        dst->n_value |= (scn->lma & PAGE_MASK);                         \
      }									\
    }									\
   while (0)

#define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \
  do									\
    {									\
       struct internal_syment *src = (struct internal_syment *)(INT);	\
       SYMENT *dst = (SYMENT *)(EXT);					\
       if (src->n_sclass == C_MOU || src->n_sclass == C_MOS)		\
	 H_PUT_32 (abfd, src->n_value * 8, dst->e_value);		\
       else if (NEEDS_PAGE (src->n_sclass)) {                           \
         H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value);     \
       }								\
    }									\
   while (0)

/* Detect section-relative absolute symbols so they get flagged with a sym
   index of -1.
*/
#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \
  ((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \
   && (RELOC)->howto->name[0] == 'A')

/********************** RELOCATION DIRECTIVES **********************/

struct external_reloc_v0
{
  char r_vaddr[4];
  char r_symndx[2];
  char r_reserved[2];
  char r_type[2];
};

struct external_reloc
{
  char r_vaddr[4];
  char r_symndx[4];
  char r_reserved[2]; /* extended pmad byte for COFF2 */
  char r_type[2];
};

#define RELOC struct external_reloc
#define RELSZ_V0 10                 /* FIXME -- coffcode.h needs fixing */
#define RELSZ 12                    /* for COFF1/2 */

/* various relocation types.  */
#define R_ABS     0x0000            /* no relocation */
#define R_REL13   0x002A            /* 13-bit direct reference (???) */
#define R_PARTLS7 0x0028            /* 7 LSBs of an address */
#define R_PARTMS9 0x0029            /* 9MSBs of an address */
#define R_EXTWORD 0x002B            /* 23-bit direct reference */
#define R_EXTWORD16 0x002C          /* 16-bit direct reference to 23-bit addr*/
#define R_EXTWORDMS7 0x002D         /* upper 7 bits of 23-bit address */

#endif /* COFF_TI_H */
Commit	Line	Data
a44f2895 TW	1	/* COFF information for TI COFF support. Definitions in this file should be
a44f2895 TW	2	customized in a target-specific file, and then this file included (see
4f1d9bd8 NC	3	tic54x.h for an example).
4f1d9bd8 NC	4
e4e42b45	5	Copyright 2000, 2001, 2002, 2003, 2005, 2008, 2009, 2010
aa820537	6	Free Software Foundation, Inc.
4f1d9bd8 NC	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
e4e42b45	10	the Free Software Foundation; either version 3 of the License, or
4f1d9bd8 NC	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
e4e42b45 NC	20	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	21	MA 02110-1301, USA. */
	22
a44f2895 TW	23	#ifndef COFF_TI_H
a44f2895 TW	24	#define COFF_TI_H
81635ce4	25
4f1d9bd8 NC	26	/* Note "coff/external.h is not used because TI adds extra fields to the structures. */
4f1d9bd8 NC	27
81635ce4 TW	28	/******************** FILE HEADER ********************/
81635ce4 TW	29
4f1d9bd8 NC	30	struct external_filehdr
	31	{
	32	char f_magic[2]; /* magic number */
	33	char f_nscns[2]; /* number of sections */
	34	char f_timdat[4]; /* time & date stamp */
	35	char f_symptr[4]; /* file pointer to symtab */
	36	char f_nsyms[4]; /* number of symtab entries */
	37	char f_opthdr[2]; /* sizeof(optional hdr) */
	38	char f_flags[2]; /* flags */
	39	char f_target_id[2]; /* magic no. (TI COFF-specific) */
	40	};
81635ce4 TW	41
	42	/* COFF0 has magic number in f_magic, and omits f_target_id from the file
	43	header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2
	44	and the target-specific magic number is found in f_target_id */
	45
	46	#define TICOFF0MAGIC TI_TARGET_ID
	47	#define TICOFF1MAGIC 0x00C1
	48	#define TICOFF2MAGIC 0x00C2
	49	#define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */
	50	#define TICOFF 1 /* customize coffcode.h */
	51
	52	/* The target_id field changes depending on the particular CPU target */
	53	/* for COFF0, the target id appeared in f_magic, where COFFX magic is now */
	54	#ifndef TI_TARGET_ID
	55	#error "TI_TARGET_ID needs to be defined for your CPU"
	56	#endif
	57
	58	/* Which bfd_arch to use... */
	59	#ifndef TICOFF_TARGET_ARCH
	60	#error "TICOFF_TARGET_ARCH needs to be defined for your CPU"
	61	#endif
	62
0da35f8b SS	63	#ifndef TICOFF_TARGET_MACHINE_GET
	64	#define TICOFF_TARGET_MACHINE_GET(FLAGS) 0
	65	#endif
	66
	67	#ifndef TICOFF_TARGET_MACHINE_SET
	68	#define TICOFF_TARGET_MACHINE_SET(FLAGSP, MACHINE)
	69	#endif
	70
81635ce4 TW	71	/* Default to COFF2 for file output */
	72	#ifndef TICOFF_DEFAULT_MAGIC
	73	#define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC
	74	#endif
	75
	76	/* This value is made available in the rare case where a bfd is unavailable */
	77	#ifndef OCTETS_PER_BYTE_POWER
d58c3cb8	78	#error "OCTETS_PER_BYTE_POWER not defined for this CPU"
81635ce4 TW	79	#else
	80	#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
	81	#endif
	82
	83	/* default alignment is on a byte (not octet!) boundary */
	84	#ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER
	85	#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0
	86	#endif
	87
	88	/* TI COFF encodes the section alignment in the section header flags */
	89	#define COFF_ALIGN_IN_SECTION_HEADER 1
	90	#define COFF_ALIGN_IN_S_FLAGS 1
	91	/* requires a power-of-two argument */
	92	#define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags \|= (((unsigned)(X)&0xF)<<8))
	93	/* result is a power of two */
	94	#define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF)
	95
	96	#define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0)
	97	#define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01)
	98
	99	#define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC)
	100	#define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC \|\| (x).f_target_id != TI_TARGET_ID)
	101	#define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC \|\| (x).f_target_id != TI_TARGET_ID)
	102
	103	/* we need to read/write an extra field in the coff file header */
	104	#ifndef COFF_ADJUST_FILEHDR_IN_POST
2eda3bbc AM	105	#define COFF_ADJUST_FILEHDR_IN_POST(abfd, src, dst) \
	106	do \
	107	{ \
62cc2e1f JK	108	if (!COFF0_P (abfd)) \
	109	((struct internal_filehdr *)(dst))->f_target_id = \
	110	H_GET_16 (abfd, ((FILHDR *)(src))->f_target_id); \
2eda3bbc AM	111	} \
2eda3bbc AM	112	while (0)
81635ce4 TW	113	#endif
	114
	115	#ifndef COFF_ADJUST_FILEHDR_OUT_POST
2eda3bbc	116	#define COFF_ADJUST_FILEHDR_OUT_POST(abfd, src, dst) \
62cc2e1f JK	117	do \
	118	{ \
	119	if (!COFF0_P (abfd)) \
	120	H_PUT_16 (abfd, ((struct internal_filehdr *)(src))->f_target_id, \
	121	((FILHDR *)(dst))->f_target_id); \
	122	} \
2eda3bbc	123	while (0)
81635ce4 TW	124	#endif
	125
	126	#define FILHDR struct external_filehdr
	127	#define FILHSZ 22
	128	#define FILHSZ_V0 20 /* COFF0 omits target_id field */
	129
	130	/* File header flags */
	131	#define F_RELFLG (0x0001)
	132	#define F_EXEC (0x0002)
	133	#define F_LNNO (0x0004)
026df7c5	134	#define F_VERS (0x0010) /* TMS320C4x code */
81635ce4 TW	135	/* F_LSYMS needs to be redefined in your source file */
	136	#define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */
	137
	138	#define F_10 0x00 /* file built for TMS320C1x devices */
	139	#define F_20 0x10 /* file built for TMS320C2x devices */
	140	#define F_25 0x20 /* file built for TMS320C2x/C5x devices */
	141	#define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */
	142	#define F_SYMMERGE 0x1000 /* duplicate symbols were removed */
	143
	144	/******************** OPTIONAL HEADER ********************/
	145
	146
	147	typedef struct
	148	{
	149	char magic[2]; /* type of file (0x108) */
	150	char vstamp[2]; /* version stamp */
	151	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	152	char dsize[4]; /* initialized data " " */
	153	char bsize[4]; /* uninitialized data " " */
	154	char entry[4]; /* entry pt. */
	155	char text_start[4]; /* base of text used for this file */
	156	char data_start[4]; /* base of data used for this file */
	157	}
	158	AOUTHDR;
	159
	160
	161	#define AOUTHDRSZ 28
	162	#define AOUTSZ 28
	163
	164
	165	/******************** SECTION HEADER ********************/
	166	/* COFF0, COFF1 */
	167	struct external_scnhdr_v01 {
	168	char s_name[8]; /* section name */
	169	char s_paddr[4]; /* physical address, aliased s_nlib */
	170	char s_vaddr[4]; /* virtual address */
	171	char s_size[4]; /* section size (in WORDS) */
	172	char s_scnptr[4]; /* file ptr to raw data for section */
	173	char s_relptr[4]; /* file ptr to relocation */
	174	char s_lnnoptr[4]; /* file ptr to line numbers */
	175	char s_nreloc[2]; /* number of relocation entries */
	176	char s_nlnno[2]; /* number of line number entries*/
	177	char s_flags[2]; /* flags */
	178	char s_reserved[1]; /* reserved */
	179	char s_page[1]; /* section page number (LOAD) */
	180	};
	181
	182	/* COFF2 */
	183	struct external_scnhdr {
	184	char s_name[8]; /* section name */
	185	char s_paddr[4]; /* physical address, aliased s_nlib */
	186	char s_vaddr[4]; /* virtual address */
	187	char s_size[4]; /* section size (in WORDS) */
	188	char s_scnptr[4]; /* file ptr to raw data for section */
	189	char s_relptr[4]; /* file ptr to relocation */
	190	char s_lnnoptr[4]; /* file ptr to line numbers */
	191	char s_nreloc[4]; /* number of relocation entries */
	192	char s_nlnno[4]; /* number of line number entries*/
	193	char s_flags[4]; /* flags */
	194	char s_reserved[2]; /* reserved */
	195	char s_page[2]; /* section page number (LOAD) */
	196	};
	197
	198	/*
199	* Special section flags
81635ce4	200	*/
81635ce4 TW	201
	202	/* TI COFF defines these flags;
	203	STYP_CLINK: the section should be excluded from the final
	204	linker output if there are no references found to any symbol in the section
	205	STYP_BLOCK: the section should be blocked, i.e. if the section would cross
	206	a page boundary, it is started at a page boundary instead.
a44f2895 TW	207	TI COFF puts the section alignment power of two in the section flags
a44f2895 TW	208	e.g. 2**N is alignment, flags \|= (N & 0xF) << 8
81635ce4 TW	209	*/
	210	#define STYP_CLINK (0x4000)
	211	#define STYP_BLOCK (0x1000)
	212	#define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */
	213
	214	#define SCNHDR_V01 struct external_scnhdr_v01
	215	#define SCNHDR struct external_scnhdr
	216	#define SCNHSZ_V01 40 /* for v0 and v1 */
	217	#define SCNHSZ 48
	218
	219	/* COFF2 changes the offsets and sizes of these fields
	220	Assume we're dealing with the COFF2 scnhdr structure, and adjust
0146fc9d NC	221	accordingly. Note: The GNU C versions of some of these macros
	222	are necessary in order to avoid compile time warnings triggered
	223	gcc's array bounds checking. The PUT_SCNHDR_PAGE macro also has
	224	the advantage on not evaluating LOC twice. */
	225
8cf3f354 AM	226	#define GET_SCNHDR_NRELOC(ABFD, LOC) \
	227	(COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, LOC))
	228	#define PUT_SCNHDR_NRELOC(ABFD, VAL, LOC) \
	229	(COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, LOC))
0146fc9d NC	230	#ifdef __GNUC__
	231	#define GET_SCNHDR_NLNNO(ABFD, LOC) \
	232	({ \
	233	int nlnno; \
	234	char * ptr = (LOC); \
	235	if (COFF2_P (ABFD)) \
	236	nlnno = H_GET_32 (ABFD, ptr); \
	237	else \
	238	nlnno = H_GET_16 (ABFD, ptr - 2); \
	239	nlnno; \
	240	})
	241	#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
	242	do \
	243	{ \
	244	char * ptr = (LOC); \
	245	if (COFF2_P (ABFD)) \
	246	H_PUT_32 (ABFD, VAL, ptr); \
	247	else \
	248	H_PUT_16 (ABFD, VAL, ptr - 2); \
	249	} \
	250	while (0)
	251	#define GET_SCNHDR_FLAGS(ABFD, LOC) \
	252	({ \
	253	int flags; \
	254	char * ptr = (LOC); \
	255	if (COFF2_P (ABFD)) \
	256	flags = H_GET_32 (ABFD, ptr); \
	257	else \
	258	flags = H_GET_16 (ABFD, ptr - 4); \
	259	flags; \
	260	})
	261	#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \
	262	do \
	263	{ \
	264	char * ptr = (LOC); \
	265	if (COFF2_P (ABFD)) \
	266	H_PUT_32 (ABFD, VAL, ptr); \
	267	else \
	268	H_PUT_16 (ABFD, VAL, ptr - 4); \
	269	} \
	270	while (0)
	271	#define GET_SCNHDR_PAGE(ABFD, LOC) \
	272	({ \
	273	unsigned page; \
	274	char * ptr = (LOC); \
	275	if (COFF2_P (ABFD)) \
	276	page = H_GET_16 (ABFD, ptr); \
	277	else \
	278	page = (unsigned) H_GET_8 (ABFD, ptr - 7); \
	279	page; \
	280	})
	281	/* On output, make sure that the "reserved" field is zero. */
	282	#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
	283	do \
	284	{ \
	285	char * ptr = (LOC); \
	286	if (COFF2_P (ABFD)) \
	287	H_PUT_16 (ABFD, VAL, ptr); \
	288	else \
	289	{ \
	290	H_PUT_8 (ABFD, VAL, ptr - 7); \
	291	H_PUT_8 (ABFD, 0, ptr - 8); \
	292	} \
	293	} \
294	while (0)
295	#else
8cf3f354 AM	296	#define GET_SCNHDR_NLNNO(ABFD, LOC) \
	297	(COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 2))
	298	#define PUT_SCNHDR_NLNNO(ABFD, VAL, LOC) \
	299	(COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 2))
	300	#define GET_SCNHDR_FLAGS(ABFD, LOC) \
	301	(COFF2_P (ABFD) ? H_GET_32 (ABFD, LOC) : H_GET_16 (ABFD, (LOC) - 4))
	302	#define PUT_SCNHDR_FLAGS(ABFD, VAL, LOC) \
	303	(COFF2_P (ABFD) ? H_PUT_32 (ABFD, VAL, LOC) : H_PUT_16 (ABFD, VAL, (LOC) - 4))
	304	#define GET_SCNHDR_PAGE(ABFD, LOC) \
	305	(COFF2_P (ABFD) ? H_GET_16 (ABFD, LOC) : (unsigned) H_GET_8 (ABFD, (LOC) - 7))
0146fc9d	306	/* On output, make sure that the "reserved" field is zero. */
8cf3f354	307	#define PUT_SCNHDR_PAGE(ABFD, VAL, LOC) \
2eda3bbc	308	(COFF2_P (ABFD) \
8cf3f354 AM	309	? H_PUT_16 (ABFD, VAL, LOC) \
8cf3f354 AM	310	: H_PUT_8 (ABFD, VAL, (LOC) - 7), H_PUT_8 (ABFD, 0, (LOC) - 8))
0146fc9d NC	311	#endif
0146fc9d NC	312
81635ce4 TW	313
	314	/* TI COFF stores section size as number of bytes (address units, not octets),
	315	so adjust to be number of octets, which is what BFD expects */
2eda3bbc AM	316	#define GET_SCNHDR_SIZE(ABFD, SZP) \
	317	(H_GET_32 (ABFD, SZP) * bfd_octets_per_byte (ABFD))
	318	#define PUT_SCNHDR_SIZE(ABFD, SZ, SZP) \
	319	H_PUT_32 (ABFD, (SZ) / bfd_octets_per_byte (ABFD), SZP)
	320
	321	#define COFF_ADJUST_SCNHDR_IN_POST(ABFD, EXT, INT) \
	322	do \
	323	{ \
	324	((struct internal_scnhdr *)(INT))->s_page = \
	325	GET_SCNHDR_PAGE (ABFD, ((SCNHDR *)(EXT))->s_page); \
	326	} \
	327	while (0)
81635ce4	328
44f74642 NC	329	/* The entire scnhdr may not be assigned.
	330	Ensure that everything is initialized. */
	331	#define COFF_ADJUST_SCNHDR_OUT_PRE(ABFD, INT, EXT) \
	332	do \
	333	{ \
	334	memset((EXT), 0, sizeof (SCNHDR)); \
	335	} \
	336	while (0)
	337
81635ce4 TW	338	/* The line number and reloc overflow checking in coff_swap_scnhdr_out in
	339	coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc.
	340	Due to different sized v0/v1/v2 section headers, we have to re-write these
	341	fields.
	342	*/
2eda3bbc AM	343	#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD, INT, EXT) \
	344	do \
	345	{ \
	346	PUT_SCNHDR_NLNNO (ABFD, ((struct internal_scnhdr *)(INT))->s_nlnno, \
	347	((SCNHDR *)(EXT))->s_nlnno); \
	348	PUT_SCNHDR_NRELOC (ABFD, ((struct internal_scnhdr *)(INT))->s_nreloc,\
	349	((SCNHDR *)(EXT))->s_nreloc); \
	350	PUT_SCNHDR_FLAGS (ABFD, ((struct internal_scnhdr *)(INT))->s_flags, \
	351	((SCNHDR *)(EXT))->s_flags); \
	352	PUT_SCNHDR_PAGE (ABFD, ((struct internal_scnhdr *)(INT))->s_page, \
	353	((SCNHDR *)(EXT))->s_page); \
	354	} \
	355	while (0)
81635ce4	356
81635ce4 TW	357	/*
	358	* names of "special" sections
	359	*/
	360	#define _TEXT ".text"
	361	#define _DATA ".data"
	362	#define _BSS ".bss"
	363	#define _CINIT ".cinit" /* initialized C data */
	364	#define _SCONST ".const" /* constants */
	365	#define _SWITCH ".switch" /* switch tables */
	366	#define _STACK ".stack" /* C stack */
	367	#define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */
	368
	369	/******************** LINE NUMBERS ********************/
	370
	371	/* 1 line number entry for every "breakpointable" source line in a section.
	372	* Line numbers are grouped on a per function basis; first entry in a function
	373	* grouping will have l_lnno = 0 and in place of physical address will be the
	374	* symbol table index of the function name.
	375	*/
	376	struct external_lineno {
	377	union {
	378	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
	379	char l_paddr[4]; /* (physical) address of line number */
	380	} l_addr;
	381	char l_lnno[2]; /* line number */
	382	};
	383
	384	#define LINENO struct external_lineno
	385	#define LINESZ 6
	386
	387
	388	/******************** SYMBOLS ********************/
	389
	390	/* NOTE: this is what a local label looks like in assembly source; what it
	391	looks like in COFF output is undefined */
	392	#define TICOFF_LOCAL_LABEL_P(NAME) \
	393	((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \
	394	\|\| NAME[strlen(NAME)-1] == '?')
	395
	396	#define E_SYMNMLEN 8 /* # characters in a symbol name */
	397	#define E_FILNMLEN 14 /* # characters in a file name */
	398	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
	399
	400	struct external_syment
	401	{
	402	union {
	403	char e_name[E_SYMNMLEN];
	404	struct {
	405	char e_zeroes[4];
	406	char e_offset[4];
	407	} e;
	408	} e;
	409	char e_value[4];
	410	char e_scnum[2];
	411	char e_type[2];
	412	char e_sclass[1];
	413	char e_numaux[1];
	414	};
	415
	416
	417	#define N_BTMASK (017)
	418	#define N_TMASK (060)
	419	#define N_BTSHFT (4)
	420	#define N_TSHIFT (2)
421
422
423	union external_auxent {
424	struct {
425	char x_tagndx[4]; /* str, un, or enum tag indx */
426	union {
427	struct {
428	char x_lnno[2]; /* declaration line number */
429	char x_size[2]; /* str/union/array size */
430	} x_lnsz;
431	char x_fsize[4]; /* size of function */
432	} x_misc;
433	union {
434	struct { /* if ISFCN, tag, or .bb */
435	char x_lnnoptr[4]; /* ptr to fcn line # */
436	char x_endndx[4]; /* entry ndx past block end */
437	} x_fcn;
438	struct { /* if ISARY, up to 4 dimen. */
439	char x_dimen[E_DIMNUM][2];
440	} x_ary;
441	} x_fcnary;
442	char x_tvndx[2]; /* tv index */
443	} x_sym;
444
445	union {
446	char x_fname[E_FILNMLEN];
447	struct {
448	char x_zeroes[4];
449	char x_offset[4];
450	} x_n;
451	} x_file;
452
453	struct {
454	char x_scnlen[4]; /* section length */
455	char x_nreloc[2]; /* # relocation entries */
456	char x_nlinno[2]; /* # line numbers */
457	} x_scn;
458
459	struct {
460	char x_tvfill[4]; /* tv fill value */
461	char x_tvlen[2]; /* length of .tv */
462	char x_tvran[2][2]; /* tv range */
463	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
464
465
466	};
467
468	#define SYMENT struct external_syment
469	#define SYMESZ 18
470	#define AUXENT union external_auxent
471	#define AUXESZ 18
472
473	/* section lengths are in target bytes (not host bytes) */
2eda3bbc AM	474	#define GET_SCN_SCNLEN(ABFD, EXT) \
	475	(H_GET_32 (ABFD, (EXT)->x_scn.x_scnlen) * bfd_octets_per_byte (ABFD))
	476	#define PUT_SCN_SCNLEN(ABFD, INT, EXT) \
	477	H_PUT_32 (ABFD, (INT) / bfd_octets_per_byte (ABFD), (EXT)->x_scn.x_scnlen)
81635ce4 TW	478
	479	/* lnsz size is in bits in COFF file, in bytes in BFD */
	480	#define GET_LNSZ_SIZE(abfd, ext) \
96d56e9f	481	(H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size) / (in_class != C_FIELD ? 8 : 1))
81635ce4 TW	482
81635ce4 TW	483	#define PUT_LNSZ_SIZE(abfd, in, ext) \
96d56e9f	484	H_PUT_16 (abfd, ((in_class != C_FIELD) ? (in) * 8 : (in)), \
2eda3bbc	485	ext->x_sym.x_misc.x_lnsz.x_size)
81635ce4	486
6e917903 TW	487	/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes
	488	Also put the load page flag of the section into the symbol value if it's an
	489	address. */
	490	#ifndef NEEDS_PAGE
	491	#define NEEDS_PAGE(X) 0
	492	#define PAGE_MASK 0
	493	#endif
2eda3bbc AM	494	#define COFF_ADJUST_SYM_IN_POST(ABFD, EXT, INT) \
	495	do \
	496	{ \
	497	struct internal_syment dst = (struct internal_syment )(INT); \
	498	if (dst->n_sclass == C_MOS \|\| dst->n_sclass == C_MOU) \
	499	dst->n_value /= 8; \
6e917903 TW	500	else if (NEEDS_PAGE (dst->n_sclass)) { \
	501	asection *scn = coff_section_from_bfd_index (abfd, dst->n_scnum); \
	502	dst->n_value \|= (scn->lma & PAGE_MASK); \
	503	} \
2eda3bbc AM	504	} \
	505	while (0)
	506
	507	#define COFF_ADJUST_SYM_OUT_POST(ABFD, INT, EXT) \
	508	do \
	509	{ \
	510	struct internal_syment src = (struct internal_syment )(INT); \
	511	SYMENT dst = (SYMENT )(EXT); \
	512	if (src->n_sclass == C_MOU \|\| src->n_sclass == C_MOS) \
	513	H_PUT_32 (abfd, src->n_value * 8, dst->e_value); \
6e917903 TW	514	else if (NEEDS_PAGE (src->n_sclass)) { \
	515	H_PUT_32 (abfd, src->n_value &= ~PAGE_MASK, dst->e_value); \
	516	} \
2eda3bbc AM	517	} \
2eda3bbc AM	518	while (0)
81635ce4	519
a44f2895 TW	520	/* Detect section-relative absolute symbols so they get flagged with a sym
a44f2895 TW	521	index of -1.
81635ce4	522	*/
2eda3bbc AM	523	#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC, SECT) \
	524	((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \
	525	&& (RELOC)->howto->name[0] == 'A')
81635ce4 TW	526
	527	/******************** RELOCATION DIRECTIVES ********************/
	528
4f1d9bd8 NC	529	struct external_reloc_v0
4f1d9bd8 NC	530	{
81635ce4 TW	531	char r_vaddr[4];
	532	char r_symndx[2];
	533	char r_reserved[2];
	534	char r_type[2];
	535	};
	536
4f1d9bd8 NC	537	struct external_reloc
4f1d9bd8 NC	538	{
81635ce4 TW	539	char r_vaddr[4];
	540	char r_symndx[4];
	541	char r_reserved[2]; /* extended pmad byte for COFF2 */
	542	char r_type[2];
	543	};
	544
	545	#define RELOC struct external_reloc
	546	#define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */
	547	#define RELSZ 12 /* for COFF1/2 */
	548
	549	/* various relocation types. */
	550	#define R_ABS 0x0000 /* no relocation */
	551	#define R_REL13 0x002A /* 13-bit direct reference (???) */
	552	#define R_PARTLS7 0x0028 /* 7 LSBs of an address */
	553	#define R_PARTMS9 0x0029 /* 9MSBs of an address */
	554	#define R_EXTWORD 0x002B /* 23-bit direct reference */
	555	#define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/
	556	#define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */
a44f2895 TW	557
a44f2895 TW	558	#endif /* COFF_TI_H */