[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). */
#ifndef COFF_TI_H
#define COFF_TI_H

/********************** 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

/* 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
#warn OCTETS_PER_BYTE_POWER not defined for this CPU, it will default to 0
#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 */
/* FIXME load page */
#ifndef COFF_ADJUST_FILEHDR_IN_POST
#define COFF_ADJUST_FILEHDR_IN_POST(abfd,src,dst) \
do { ((struct internal_filehdr *)(dst))->f_target_id = \
bfd_h_get_16(abfd, (bfd_byte *)(((FILHDR *)(src))->f_target_id)); \
/*((struct internal_filehdr *)(dst))->f_flags |= F_LDPAGE;*/ \
} while(0)
#endif

#ifndef COFF_ADJUST_FILEHDR_OUT_POST
#define COFF_ADJUST_FILEHDR_OUT_POST(abfd,src,dst) \
do { bfd_h_put_16(abfd, ((struct internal_filehdr *)(src))->f_target_id, \
             (bfd_byte *)(((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)
/* 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
 */
/* recognized load pages */
#define PG_PROG         0x0         /* PROG page */
#define PG_DATA         0x1         /* DATA page */

/* 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 
 */
#define GET_SCNHDR_NRELOC(ABFD,PTR) \
(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, PTR))
#define PUT_SCNHDR_NRELOC(ABFD,VAL,PTR) \
(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,PTR))
#define GET_SCNHDR_NLNNO(ABFD,PTR) \
(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-2))
#define PUT_SCNHDR_NLNNO(ABFD,VAL,PTR) \
(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-2))
#define GET_SCNHDR_FLAGS(ABFD,PTR) \
(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-4))
#define PUT_SCNHDR_FLAGS(ABFD,VAL,PTR) \
(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-4))
#define GET_SCNHDR_PAGE(ABFD,PTR) \
(COFF2_P(ABFD) ? bfd_h_get_16 (ABFD,PTR) : bfd_h_get_8 (ABFD, (PTR)-7))
/* on output, make sure that the "reserved" field is zero */
#define PUT_SCNHDR_PAGE(ABFD,VAL,PTR) \
(COFF2_P(ABFD) ? bfd_h_put_16 (ABFD,VAL,PTR) : \
bfd_h_put_8 (ABFD,VAL,(PTR)-7), bfd_h_put_8 (ABFD, 0, (PTR)-8))

/* 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) \
(bfd_h_get_32(ABFD,SZP)*bfd_octets_per_byte(ABFD))
#define PUT_SCNHDR_SIZE(ABFD,SZ,SZP) \
bfd_h_put_32(ABFD,(SZ)/bfd_octets_per_byte(ABFD),SZP)

/* FIXME load page
#define COFF_ADJUST_SCNHDR_IN_POST(ABFD,EXT,INT) \
do { ((struct internal_scnhdr *)(INT))->s_page = \
GET_SCNHDR_PAGE(ABFD,(bfd_byte *)((SCNHDR *)(EXT))->s_page); \
} 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.
   FIXME load page
 */
#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \
do { \
PUT_SCNHDR_NLNNO(ABFD,((struct internal_scnhdr *)(INT))->s_nlnno,\
                (bfd_byte *)((SCNHDR *)(EXT))->s_nlnno); \
PUT_SCNHDR_NRELOC(ABFD,((struct internal_scnhdr *)(INT))->s_nreloc,\
                (bfd_byte *)((SCNHDR *)(EXT))->s_nreloc); \
PUT_SCNHDR_FLAGS(ABFD,((struct internal_scnhdr *)(INT))->s_flags, \
                (bfd_byte *)((SCNHDR *)(EXT))->s_flags); \
/*PUT_SCNHDR_PAGE(ABFD,((struct internal_scnhdr *)(INT))->s_page, \
  (bfd_byte *)((SCNHDR *)(EXT))->s_page);*/ \
} while(0)

/* page macros

   the first GDB port requires flags in its remote memory access commands to
   distinguish between data/prog space.  hopefully we can make this go away
   eventually.  stuff the page in the upper bits of a 32-bit address, since
   the c5x family only uses 16 or 23 bits.

   c2x, c5x and most c54x devices have 16-bit addresses, but the c548 has
   23-bit program addresses.  make sure the page flags don't interfere 
   These flags are used by GDB to identify the destination page for
   addresses. 
*/

#define LONG_ADDRESSES  1
#define PG_SHIFT        (LONG_ADDRESSES ? 30 : 16)
#define ADDR_MASK       (((unsigned long) 1 << PG_SHIFT) - 1)
#define PG_MASK         ((unsigned long) 3 << PG_SHIFT)
#define PG_TO_FLAG(p)   ((p) << PG_SHIFT)
#define FLAG_TO_PG(f)   (((f) & PG_MASK) >> PG_SHIFT)

/*
 * 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) \
(bfd_h_get_32(ABFD,(bfd_byte *)(EXT)->x_scn.x_scnlen)*bfd_octets_per_byte(ABFD))
#define PUT_SCN_SCNLEN(ABFD,INT,EXT) \
bfd_h_put_32(ABFD,(INT)/bfd_octets_per_byte(ABFD),\
             (bfd_byte *)(EXT)->x_scn.x_scnlen)

/* lnsz size is in bits in COFF file, in bytes in BFD */
#define GET_LNSZ_SIZE(abfd, ext) \
(bfd_h_get_16(abfd, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_size) / \
 (class != C_FIELD ? 8 : 1))

#define PUT_LNSZ_SIZE(abfd, in, ext) \
 bfd_h_put_16(abfd, ((class != C_FIELD) ? (in)*8 : (in)), \
              (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
 
/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes */
#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; \
} 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) \
bfd_h_put_32(abfd,src->n_value * 8,(bfd_byte *)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
	2	customized in a target-specific file, and then this file included (see
	3	tic54x.h for an example). */
	4	#ifndef COFF_TI_H
	5	#define COFF_TI_H
81635ce4 TW	6
	7	/******************** FILE HEADER ********************/
	8
	9	struct external_filehdr {
	10	char f_magic[2]; /* magic number */
	11	char f_nscns[2]; /* number of sections */
	12	char f_timdat[4]; /* time & date stamp */
	13	char f_symptr[4]; /* file pointer to symtab */
	14	char f_nsyms[4]; /* number of symtab entries */
	15	char f_opthdr[2]; /* sizeof(optional hdr) */
	16	char f_flags[2]; /* flags */
	17	char f_target_id[2]; /* magic no. (TI COFF-specific) */
	18	};
	19
	20	/* COFF0 has magic number in f_magic, and omits f_target_id from the file
	21	header; for later versions, f_magic is 0xC1 for COFF1 and 0xC2 for COFF2
	22	and the target-specific magic number is found in f_target_id */
	23
	24	#define TICOFF0MAGIC TI_TARGET_ID
	25	#define TICOFF1MAGIC 0x00C1
	26	#define TICOFF2MAGIC 0x00C2
	27	#define TICOFF_AOUT_MAGIC 0x0108 /* magic number in optional header */
	28	#define TICOFF 1 /* customize coffcode.h */
	29
	30	/* The target_id field changes depending on the particular CPU target */
	31	/* for COFF0, the target id appeared in f_magic, where COFFX magic is now */
	32	#ifndef TI_TARGET_ID
	33	#error "TI_TARGET_ID needs to be defined for your CPU"
	34	#endif
	35
	36	/* Which bfd_arch to use... */
	37	#ifndef TICOFF_TARGET_ARCH
	38	#error "TICOFF_TARGET_ARCH needs to be defined for your CPU"
	39	#endif
	40
	41	/* Default to COFF2 for file output */
	42	#ifndef TICOFF_DEFAULT_MAGIC
	43	#define TICOFF_DEFAULT_MAGIC TICOFF2MAGIC
	44	#endif
	45
	46	/* This value is made available in the rare case where a bfd is unavailable */
	47	#ifndef OCTETS_PER_BYTE_POWER
	48	#warn OCTETS_PER_BYTE_POWER not defined for this CPU, it will default to 0
	49	#else
	50	#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
	51	#endif
	52
	53	/* default alignment is on a byte (not octet!) boundary */
	54	#ifndef COFF_DEFAULT_SECTION_ALIGNMENT_POWER
	55	#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 0
	56	#endif
	57
	58	/* TI COFF encodes the section alignment in the section header flags */
	59	#define COFF_ALIGN_IN_SECTION_HEADER 1
	60	#define COFF_ALIGN_IN_S_FLAGS 1
	61	/* requires a power-of-two argument */
	62	#define COFF_ENCODE_ALIGNMENT(S,X) ((S).s_flags \|= (((unsigned)(X)&0xF)<<8))
	63	/* result is a power of two */
	64	#define COFF_DECODE_ALIGNMENT(X) (((X)>>8)&0xF)
	65
	66	#define COFF0_P(ABFD) (bfd_coff_filhsz(ABFD) == FILHSZ_V0)
	67	#define COFF2_P(ABFD) (bfd_coff_scnhsz(ABFD) != SCNHSZ_V01)
	68
	69	#define COFF0_BADMAG(x) ((x).f_magic != TICOFF0MAGIC)
70	#define COFF1_BADMAG(x) ((x).f_magic != TICOFF1MAGIC \|\| (x).f_target_id != TI_TARGET_ID)
71	#define COFF2_BADMAG(x) ((x).f_magic != TICOFF2MAGIC \|\| (x).f_target_id != TI_TARGET_ID)
72
73	/* we need to read/write an extra field in the coff file header */
4af1d5f6	74	/* FIXME load page */
81635ce4 TW	75	#ifndef COFF_ADJUST_FILEHDR_IN_POST
	76	#define COFF_ADJUST_FILEHDR_IN_POST(abfd,src,dst) \
	77	do { ((struct internal_filehdr *)(dst))->f_target_id = \
	78	bfd_h_get_16(abfd, (bfd_byte )(((FILHDR )(src))->f_target_id)); \
4af1d5f6	79	/((struct internal_filehdr )(dst))->f_flags \|= F_LDPAGE;*/ \
81635ce4 TW	80	} while(0)
	81	#endif
	82
	83	#ifndef COFF_ADJUST_FILEHDR_OUT_POST
	84	#define COFF_ADJUST_FILEHDR_OUT_POST(abfd,src,dst) \
	85	do { bfd_h_put_16(abfd, ((struct internal_filehdr *)(src))->f_target_id, \
	86	(bfd_byte )(((FILHDR )(dst))->f_target_id)); \
	87	} while(0)
	88	#endif
	89
	90	#define FILHDR struct external_filehdr
	91	#define FILHSZ 22
	92	#define FILHSZ_V0 20 /* COFF0 omits target_id field */
	93
	94	/* File header flags */
	95	#define F_RELFLG (0x0001)
	96	#define F_EXEC (0x0002)
	97	#define F_LNNO (0x0004)
	98	/* F_LSYMS needs to be redefined in your source file */
	99	#define F_LSYMS_TICOFF (0x0010) /* normal COFF is 0x8 */
	100
	101	#define F_10 0x00 /* file built for TMS320C1x devices */
	102	#define F_20 0x10 /* file built for TMS320C2x devices */
	103	#define F_25 0x20 /* file built for TMS320C2x/C5x devices */
	104	#define F_LENDIAN 0x0100 /* 16 bits/word, LSB first */
	105	#define F_SYMMERGE 0x1000 /* duplicate symbols were removed */
	106
	107	/******************** OPTIONAL HEADER ********************/
	108
	109
	110	typedef struct
	111	{
	112	char magic[2]; /* type of file (0x108) */
	113	char vstamp[2]; /* version stamp */
	114	char tsize[4]; /* text size in bytes, padded to FW bdry*/
	115	char dsize[4]; /* initialized data " " */
	116	char bsize[4]; /* uninitialized data " " */
	117	char entry[4]; /* entry pt. */
	118	char text_start[4]; /* base of text used for this file */
	119	char data_start[4]; /* base of data used for this file */
	120	}
	121	AOUTHDR;
	122
	123
	124	#define AOUTHDRSZ 28
	125	#define AOUTSZ 28
	126
	127
	128	/******************** SECTION HEADER ********************/
	129	/* COFF0, COFF1 */
	130	struct external_scnhdr_v01 {
	131	char s_name[8]; /* section name */
	132	char s_paddr[4]; /* physical address, aliased s_nlib */
	133	char s_vaddr[4]; /* virtual address */
	134	char s_size[4]; /* section size (in WORDS) */
	135	char s_scnptr[4]; /* file ptr to raw data for section */
	136	char s_relptr[4]; /* file ptr to relocation */
	137	char s_lnnoptr[4]; /* file ptr to line numbers */
	138	char s_nreloc[2]; /* number of relocation entries */
	139	char s_nlnno[2]; /* number of line number entries*/
	140	char s_flags[2]; /* flags */
	141	char s_reserved[1]; /* reserved */
	142	char s_page[1]; /* section page number (LOAD) */
	143	};
144
145	/* COFF2 */
146	struct external_scnhdr {
147	char s_name[8]; /* section name */
148	char s_paddr[4]; /* physical address, aliased s_nlib */
149	char s_vaddr[4]; /* virtual address */
150	char s_size[4]; /* section size (in WORDS) */
151	char s_scnptr[4]; /* file ptr to raw data for section */
152	char s_relptr[4]; /* file ptr to relocation */
153	char s_lnnoptr[4]; /* file ptr to line numbers */
154	char s_nreloc[4]; /* number of relocation entries */
155	char s_nlnno[4]; /* number of line number entries*/
156	char s_flags[4]; /* flags */
157	char s_reserved[2]; /* reserved */
158	char s_page[2]; /* section page number (LOAD) */
159	};
160
161	/*
162	* Special section flags
81635ce4 TW	163	*/
	164	/* recognized load pages */
	165	#define PG_PROG 0x0 /* PROG page */
	166	#define PG_DATA 0x1 /* DATA page */
	167
	168	/* TI COFF defines these flags;
	169	STYP_CLINK: the section should be excluded from the final
	170	linker output if there are no references found to any symbol in the section
	171	STYP_BLOCK: the section should be blocked, i.e. if the section would cross
	172	a page boundary, it is started at a page boundary instead.
a44f2895 TW	173	TI COFF puts the section alignment power of two in the section flags
a44f2895 TW	174	e.g. 2**N is alignment, flags \|= (N & 0xF) << 8
81635ce4 TW	175	*/
	176	#define STYP_CLINK (0x4000)
	177	#define STYP_BLOCK (0x1000)
	178	#define STYP_ALIGN (0x0F00) /* TI COFF stores section alignment here */
	179
	180	#define SCNHDR_V01 struct external_scnhdr_v01
	181	#define SCNHDR struct external_scnhdr
	182	#define SCNHSZ_V01 40 /* for v0 and v1 */
	183	#define SCNHSZ 48
	184
	185	/* COFF2 changes the offsets and sizes of these fields
	186	Assume we're dealing with the COFF2 scnhdr structure, and adjust
	187	accordingly
	188	*/
	189	#define GET_SCNHDR_NRELOC(ABFD,PTR) \
	190	(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, PTR))
	191	#define PUT_SCNHDR_NRELOC(ABFD,VAL,PTR) \
	192	(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,PTR))
	193	#define GET_SCNHDR_NLNNO(ABFD,PTR) \
	194	(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-2))
	195	#define PUT_SCNHDR_NLNNO(ABFD,VAL,PTR) \
	196	(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-2))
	197	#define GET_SCNHDR_FLAGS(ABFD,PTR) \
	198	(COFF2_P(ABFD) ? bfd_h_get_32 (ABFD,PTR) : bfd_h_get_16 (ABFD, (PTR)-4))
	199	#define PUT_SCNHDR_FLAGS(ABFD,VAL,PTR) \
	200	(COFF2_P(ABFD) ? bfd_h_put_32 (ABFD,VAL,PTR) : bfd_h_put_16 (ABFD,VAL,(PTR)-4))
	201	#define GET_SCNHDR_PAGE(ABFD,PTR) \
	202	(COFF2_P(ABFD) ? bfd_h_get_16 (ABFD,PTR) : bfd_h_get_8 (ABFD, (PTR)-7))
	203	/* on output, make sure that the "reserved" field is zero */
	204	#define PUT_SCNHDR_PAGE(ABFD,VAL,PTR) \
	205	(COFF2_P(ABFD) ? bfd_h_put_16 (ABFD,VAL,PTR) : \
	206	bfd_h_put_8 (ABFD,VAL,(PTR)-7), bfd_h_put_8 (ABFD, 0, (PTR)-8))
	207
	208	/* TI COFF stores section size as number of bytes (address units, not octets),
	209	so adjust to be number of octets, which is what BFD expects */
	210	#define GET_SCNHDR_SIZE(ABFD,SZP) \
	211	(bfd_h_get_32(ABFD,SZP)*bfd_octets_per_byte(ABFD))
	212	#define PUT_SCNHDR_SIZE(ABFD,SZ,SZP) \
	213	bfd_h_put_32(ABFD,(SZ)/bfd_octets_per_byte(ABFD),SZP)
	214
4af1d5f6	215	/* FIXME load page
81635ce4 TW	216	#define COFF_ADJUST_SCNHDR_IN_POST(ABFD,EXT,INT) \
	217	do { ((struct internal_scnhdr *)(INT))->s_page = \
	218	GET_SCNHDR_PAGE(ABFD,(bfd_byte )((SCNHDR )(EXT))->s_page); \
	219	} while(0)
4af1d5f6	220	*/
81635ce4 TW	221
	222	/* The line number and reloc overflow checking in coff_swap_scnhdr_out in
	223	coffswap.h doesn't use PUT_X for s_nlnno and s_nreloc.
	224	Due to different sized v0/v1/v2 section headers, we have to re-write these
	225	fields.
4af1d5f6	226	FIXME load page
81635ce4 TW	227	*/
	228	#define COFF_ADJUST_SCNHDR_OUT_POST(ABFD,INT,EXT) \
	229	do { \
	230	PUT_SCNHDR_NLNNO(ABFD,((struct internal_scnhdr *)(INT))->s_nlnno,\
	231	(bfd_byte )((SCNHDR )(EXT))->s_nlnno); \
	232	PUT_SCNHDR_NRELOC(ABFD,((struct internal_scnhdr *)(INT))->s_nreloc,\
	233	(bfd_byte )((SCNHDR )(EXT))->s_nreloc); \
	234	PUT_SCNHDR_FLAGS(ABFD,((struct internal_scnhdr *)(INT))->s_flags, \
	235	(bfd_byte )((SCNHDR )(EXT))->s_flags); \
4af1d5f6 TW	236	/PUT_SCNHDR_PAGE(ABFD,((struct internal_scnhdr )(INT))->s_page, \
4af1d5f6 TW	237	(bfd_byte )((SCNHDR )(EXT))->s_page);*/ \
81635ce4 TW	238	} while(0)
	239
	240	/* page macros
	241
	242	the first GDB port requires flags in its remote memory access commands to
	243	distinguish between data/prog space. hopefully we can make this go away
	244	eventually. stuff the page in the upper bits of a 32-bit address, since
	245	the c5x family only uses 16 or 23 bits.
	246
	247	c2x, c5x and most c54x devices have 16-bit addresses, but the c548 has
	248	23-bit program addresses. make sure the page flags don't interfere
a44f2895 TW	249	These flags are used by GDB to identify the destination page for
a44f2895 TW	250	addresses.
81635ce4 TW	251	*/
	252
	253	#define LONG_ADDRESSES 1
	254	#define PG_SHIFT (LONG_ADDRESSES ? 30 : 16)
fc633e5b AM	255	#define ADDR_MASK (((unsigned long) 1 << PG_SHIFT) - 1)
	256	#define PG_MASK ((unsigned long) 3 << PG_SHIFT)
	257	#define PG_TO_FLAG(p) ((p) << PG_SHIFT)
	258	#define FLAG_TO_PG(f) (((f) & PG_MASK) >> PG_SHIFT)
81635ce4 TW	259
	260	/*
	261	* names of "special" sections
	262	*/
	263	#define _TEXT ".text"
	264	#define _DATA ".data"
	265	#define _BSS ".bss"
	266	#define _CINIT ".cinit" /* initialized C data */
	267	#define _SCONST ".const" /* constants */
	268	#define _SWITCH ".switch" /* switch tables */
	269	#define _STACK ".stack" /* C stack */
	270	#define _SYSMEM ".sysmem" /* used for malloc et al. syscalls */
	271
	272	/******************** LINE NUMBERS ********************/
	273
	274	/* 1 line number entry for every "breakpointable" source line in a section.
	275	* Line numbers are grouped on a per function basis; first entry in a function
	276	* grouping will have l_lnno = 0 and in place of physical address will be the
	277	* symbol table index of the function name.
	278	*/
	279	struct external_lineno {
	280	union {
	281	char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
	282	char l_paddr[4]; /* (physical) address of line number */
	283	} l_addr;
	284	char l_lnno[2]; /* line number */
	285	};
	286
	287	#define LINENO struct external_lineno
	288	#define LINESZ 6
	289
	290
	291	/******************** SYMBOLS ********************/
	292
	293	/* NOTE: this is what a local label looks like in assembly source; what it
	294	looks like in COFF output is undefined */
	295	#define TICOFF_LOCAL_LABEL_P(NAME) \
	296	((NAME[0] == '$' && NAME[1] >= '0' && NAME[1] <= '9' && NAME[2] == '\0') \
	297	\|\| NAME[strlen(NAME)-1] == '?')
	298
	299	#define E_SYMNMLEN 8 /* # characters in a symbol name */
	300	#define E_FILNMLEN 14 /* # characters in a file name */
	301	#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
	302
	303	struct external_syment
	304	{
	305	union {
	306	char e_name[E_SYMNMLEN];
	307	struct {
	308	char e_zeroes[4];
	309	char e_offset[4];
	310	} e;
	311	} e;
	312	char e_value[4];
	313	char e_scnum[2];
	314	char e_type[2];
	315	char e_sclass[1];
	316	char e_numaux[1];
	317	};
	318
	319
	320	#define N_BTMASK (017)
	321	#define N_TMASK (060)
	322	#define N_BTSHFT (4)
323	#define N_TSHIFT (2)
324
325
326	union external_auxent {
327	struct {
328	char x_tagndx[4]; /* str, un, or enum tag indx */
329	union {
330	struct {
331	char x_lnno[2]; /* declaration line number */
332	char x_size[2]; /* str/union/array size */
333	} x_lnsz;
334	char x_fsize[4]; /* size of function */
335	} x_misc;
336	union {
337	struct { /* if ISFCN, tag, or .bb */
338	char x_lnnoptr[4]; /* ptr to fcn line # */
339	char x_endndx[4]; /* entry ndx past block end */
340	} x_fcn;
341	struct { /* if ISARY, up to 4 dimen. */
342	char x_dimen[E_DIMNUM][2];
343	} x_ary;
344	} x_fcnary;
345	char x_tvndx[2]; /* tv index */
346	} x_sym;
347
348	union {
349	char x_fname[E_FILNMLEN];
350	struct {
351	char x_zeroes[4];
352	char x_offset[4];
353	} x_n;
354	} x_file;
355
356	struct {
357	char x_scnlen[4]; /* section length */
358	char x_nreloc[2]; /* # relocation entries */
359	char x_nlinno[2]; /* # line numbers */
360	} x_scn;
361
362	struct {
363	char x_tvfill[4]; /* tv fill value */
364	char x_tvlen[2]; /* length of .tv */
365	char x_tvran[2][2]; /* tv range */
366	} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
367
368
369	};
370
371	#define SYMENT struct external_syment
372	#define SYMESZ 18
373	#define AUXENT union external_auxent
374	#define AUXESZ 18
375
376	/* section lengths are in target bytes (not host bytes) */
377	#define GET_SCN_SCNLEN(ABFD,EXT) \
378	(bfd_h_get_32(ABFD,(bfd_byte )(EXT)->x_scn.x_scnlen)bfd_octets_per_byte(ABFD))
379	#define PUT_SCN_SCNLEN(ABFD,INT,EXT) \
380	bfd_h_put_32(ABFD,(INT)/bfd_octets_per_byte(ABFD),\
381	(bfd_byte *)(EXT)->x_scn.x_scnlen)
382
383	/* lnsz size is in bits in COFF file, in bytes in BFD */
384	#define GET_LNSZ_SIZE(abfd, ext) \
385	(bfd_h_get_16(abfd, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_size) / \
386	(class != C_FIELD ? 8 : 1))
387
388	#define PUT_LNSZ_SIZE(abfd, in, ext) \
389	bfd_h_put_16(abfd, ((class != C_FIELD) ? (in)*8 : (in)), \
390	(bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
391
392	/* TI COFF stores offsets for MOS and MOU in bits; BFD expects bytes */
393	#define COFF_ADJUST_SYM_IN_POST(ABFD,EXT,INT) \
394	do { struct internal_syment dst = (struct internal_syment )(INT); \
395	if (dst->n_sclass == C_MOS \|\| dst->n_sclass == C_MOU) dst->n_value /= 8; \
396	} while (0)
397
398	#define COFF_ADJUST_SYM_OUT_POST(ABFD,INT,EXT) \
399	do { struct internal_syment src = (struct internal_syment )(INT); \
400	SYMENT dst = (SYMENT )(EXT); \
401	if(src->n_sclass == C_MOU \|\| src->n_sclass == C_MOS) \
402	bfd_h_put_32(abfd,src->n_value * 8,(bfd_byte *)dst->e_value); \
403	} while (0)
404
a44f2895 TW	405	/* Detect section-relative absolute symbols so they get flagged with a sym
a44f2895 TW	406	index of -1.
81635ce4 TW	407	*/
	408	#define SECTION_RELATIVE_ABSOLUTE_SYMBOL_P(RELOC,SECT) \
	409	((*(RELOC)->sym_ptr_ptr)->section->output_section == (SECT) \
	410	&& (RELOC)->howto->name[0] == 'A')
	411
	412	/******************** RELOCATION DIRECTIVES ********************/
	413
	414	struct external_reloc_v0 {
	415	char r_vaddr[4];
	416	char r_symndx[2];
	417	char r_reserved[2];
	418	char r_type[2];
	419	};
	420
	421	struct external_reloc {
	422	char r_vaddr[4];
	423	char r_symndx[4];
	424	char r_reserved[2]; /* extended pmad byte for COFF2 */
	425	char r_type[2];
	426	};
	427
	428	#define RELOC struct external_reloc
	429	#define RELSZ_V0 10 /* FIXME -- coffcode.h needs fixing */
	430	#define RELSZ 12 /* for COFF1/2 */
	431
	432	/* various relocation types. */
	433	#define R_ABS 0x0000 /* no relocation */
	434	#define R_REL13 0x002A /* 13-bit direct reference (???) */
	435	#define R_PARTLS7 0x0028 /* 7 LSBs of an address */
	436	#define R_PARTMS9 0x0029 /* 9MSBs of an address */
	437	#define R_EXTWORD 0x002B /* 23-bit direct reference */
	438	#define R_EXTWORD16 0x002C /* 16-bit direct reference to 23-bit addr*/
	439	#define R_EXTWORDMS7 0x002D /* upper 7 bits of 23-bit address */
a44f2895 TW	440
a44f2895 TW	441	#endif /* COFF_TI_H */