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old-cross-binutils/include/coff/ecoff.h
Ian Lance Taylor 3f61fc966c * alpha.h (struct external_reloc): Add r_symndx field. 
(RELSZ): Correct.
	(RELOC_BITS*): Correct.
	(ALPHA_R_*): Define.
	* ecoff.h (RELOC_SECTION_{XDATA,PDATA,FINI,LITA,ABS}): Define.
	(r_extern): Undefine.
	* internal.h (struct internal_reloc): Make r_vaddr bfd_vma rather
	than long.  Add r_extern field.
1993-08-12 22:14:35 +00:00

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#ifndef ECOFF_H
#define ECOFF_H
/* Generic ECOFF support.
This does not include symbol information, found in sym.h and
symconst.h. */
/* Mips magic numbers used in filehdr. MIPS_MAGIC_LITTLE is used on
little endian machines. MIPS_MAGIC_BIG is used on big endian
machines. Where is MIPS_MAGIC_1 from? */
#define MIPS_MAGIC_1 0x0180
#define MIPS_MAGIC_LITTLE 0x0162
#define MIPS_MAGIC_BIG 0x0160
/* Alpha magic numbers used in filehdr. */
#define ALPHA_MAGIC 0x183
/* Magic numbers used in a.out header. */
#define ECOFF_AOUT_OMAGIC 0407 /* not demand paged (ld -N). */
#define ECOFF_AOUT_ZMAGIC 0413 /* demand load format, eg normal ld output */
/* Names of special sections. */
#define _TEXT ".text"
#define _DATA ".data"
#define _BSS ".bss"
#define _RDATA ".rdata"
#define _SDATA ".sdata"
#define _SBSS ".sbss"
#define _LIT4 ".lit4"
#define _LIT8 ".lit8"
#define _LIB ".lib"
#define _INIT ".init"
/* ECOFF uses some additional section flags. */
#define STYP_RDATA 0x100
#define STYP_SDATA 0x200
#define STYP_SBSS 0x400
#define STYP_LIT8 0x8000000
#define STYP_LIT4 0x10000000
#define STYP_ECOFF_INIT 0x80000000
#define STYP_OTHER_LOAD STYP_ECOFF_INIT
/* The linker needs a section to hold small common variables while
linking. There is no convenient way to create it when the linker
needs it, so we always create one for each BFD. We then avoid
writing it out. */
#define SCOMMON ".scommon"
/* If the extern bit in a reloc is 1, then r_symndx is an index into
the external symbol table. If the extern bit is 0, then r_symndx
indicates a section, and is one of the following values. */
#define RELOC_SECTION_TEXT 1
#define RELOC_SECTION_RDATA 2
#define RELOC_SECTION_DATA 3
#define RELOC_SECTION_SDATA 4
#define RELOC_SECTION_SBSS 5
#define RELOC_SECTION_BSS 6
#define RELOC_SECTION_INIT 7
#define RELOC_SECTION_LIT8 8
#define RELOC_SECTION_LIT4 9
#define RELOC_SECTION_XDATA 10
#define RELOC_SECTION_PDATA 11
#define RELOC_SECTION_FINI 12
#define RELOC_SECTION_LITA 13
#define RELOC_SECTION_ABS 14
/********************** STABS **********************/
/* gcc uses mips-tfile to output type information in special stabs
entries. These must match the corresponding definition in
gcc/config/mips.h. At some point, these should probably go into a
shared include file, but currently gcc and gdb do not share any
directories. */
#define CODE_MASK 0x8F300
#define ECOFF_IS_STAB(sym) (((sym)->index & 0xFFF00) == CODE_MASK)
#define ECOFF_MARK_STAB(code) ((code)+CODE_MASK)
#define ECOFF_UNMARK_STAB(code) ((code)-CODE_MASK)
#define STABS_SYMBOL "@stabs"
/********************** COFF **********************/
/* gcc also uses mips-tfile to output COFF debugging information.
These are the values it uses when outputting the .type directive.
These should also be in a shared include file. */
#define N_BTMASK (017)
#define N_TMASK (060)
#define N_BTSHFT (4)
#define N_TSHIFT (2)
/********************** AUX **********************/
/* The auxiliary type information is the same on all known ECOFF
targets. I can't see any reason that it would ever change, so I am
going to gamble and define the external structures here, in the
target independent ECOFF header file. The internal forms are
defined in coff/sym.h, which was originally donated by MIPS
Computer Systems. */
/* Type information external record */
struct tir_ext {
unsigned char t_bits1[1];
unsigned char t_tq45[1];
unsigned char t_tq01[1];
unsigned char t_tq23[1];
};
#define TIR_BITS1_FBITFIELD_BIG 0x80
#define TIR_BITS1_FBITFIELD_LITTLE 0x01
#define TIR_BITS1_CONTINUED_BIG 0x40
#define TIR_BITS1_CONTINUED_LITTLE 0x02
#define TIR_BITS1_BT_BIG 0x3F
#define TIR_BITS1_BT_SH_BIG 0
#define TIR_BITS1_BT_LITTLE 0xFC
#define TIR_BITS1_BT_SH_LITTLE 2
#define TIR_BITS_TQ4_BIG 0xF0
#define TIR_BITS_TQ4_SH_BIG 4
#define TIR_BITS_TQ5_BIG 0x0F
#define TIR_BITS_TQ5_SH_BIG 0
#define TIR_BITS_TQ4_LITTLE 0x0F
#define TIR_BITS_TQ4_SH_LITTLE 0
#define TIR_BITS_TQ5_LITTLE 0xF0
#define TIR_BITS_TQ5_SH_LITTLE 4
#define TIR_BITS_TQ0_BIG 0xF0
#define TIR_BITS_TQ0_SH_BIG 4
#define TIR_BITS_TQ1_BIG 0x0F
#define TIR_BITS_TQ1_SH_BIG 0
#define TIR_BITS_TQ0_LITTLE 0x0F
#define TIR_BITS_TQ0_SH_LITTLE 0
#define TIR_BITS_TQ1_LITTLE 0xF0
#define TIR_BITS_TQ1_SH_LITTLE 4
#define TIR_BITS_TQ2_BIG 0xF0
#define TIR_BITS_TQ2_SH_BIG 4
#define TIR_BITS_TQ3_BIG 0x0F
#define TIR_BITS_TQ3_SH_BIG 0
#define TIR_BITS_TQ2_LITTLE 0x0F
#define TIR_BITS_TQ2_SH_LITTLE 0
#define TIR_BITS_TQ3_LITTLE 0xF0
#define TIR_BITS_TQ3_SH_LITTLE 4
/* Relative symbol external record */
struct rndx_ext {
unsigned char r_bits[4];
};
#define RNDX_BITS0_RFD_SH_LEFT_BIG 4
#define RNDX_BITS1_RFD_BIG 0xF0
#define RNDX_BITS1_RFD_SH_BIG 4
#define RNDX_BITS0_RFD_SH_LEFT_LITTLE 0
#define RNDX_BITS1_RFD_LITTLE 0x0F
#define RNDX_BITS1_RFD_SH_LEFT_LITTLE 8
#define RNDX_BITS1_INDEX_BIG 0x0F
#define RNDX_BITS1_INDEX_SH_LEFT_BIG 16
#define RNDX_BITS2_INDEX_SH_LEFT_BIG 8
#define RNDX_BITS3_INDEX_SH_LEFT_BIG 0
#define RNDX_BITS1_INDEX_LITTLE 0xF0
#define RNDX_BITS1_INDEX_SH_LITTLE 4
#define RNDX_BITS2_INDEX_SH_LEFT_LITTLE 4
#define RNDX_BITS3_INDEX_SH_LEFT_LITTLE 12
/* Auxiliary symbol information external record */
union aux_ext {
struct tir_ext a_ti;
struct rndx_ext a_rndx;
unsigned char a_dnLow[4];
unsigned char a_dnHigh[4];
unsigned char a_isym[4];
unsigned char a_iss[4];
unsigned char a_width[4];
unsigned char a_count[4];
};
/* FIXME! These are copied from ../bfd/libbfd.h */
extern bfd_vma _do_getb32 PARAMS ((unsigned char *addr));
extern bfd_vma _do_getl32 PARAMS ((unsigned char *addr));
extern void _do_putb32 PARAMS ((bfd_vma data, unsigned char *addr));
extern void _do_putl32 PARAMS ((bfd_vma data, unsigned char *addr));
#define AUX_GET_ANY(bigend, ax, field) \
((bigend) ? _do_getb32 ((ax)->field) : _do_getl32 ((ax)->field))
#define AUX_GET_DNLOW(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_dnLow)
#define AUX_GET_DNHIGH(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_dnHigh)
#define AUX_GET_ISYM(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_isym)
#define AUX_GET_ISS(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_iss)
#define AUX_GET_WIDTH(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_width)
#define AUX_GET_COUNT(bigend, ax) AUX_GET_ANY ((bigend), (ax), a_count)
#define AUX_PUT_ANY(bigend, val, ax, field) \
((bigend) \
? (_do_putb32 ((val), (ax)->field), 0) \
: (_do_putl32 ((val), (ax)->field), 0))
#define AUX_PUT_DNLOW(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_dnLow)
#define AUX_PUT_DNHIGH(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_dnHigh)
#define AUX_PUT_ISYM(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_isym)
#define AUX_PUT_ISS(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_iss)
#define AUX_PUT_WIDTH(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_width)
#define AUX_PUT_COUNT(bigend, val, ax) \
AUX_PUT_ANY ((bigend), (val), (ax), a_count)
/* Prototypes for the swapping functions. These require that sym.h be
included before this file. */
extern void ecoff_swap_tir_in PARAMS ((int bigend, struct tir_ext *, TIR *));
extern void ecoff_swap_tir_out PARAMS ((int bigend, TIR *, struct tir_ext *));
extern void ecoff_swap_rndx_in PARAMS ((int bigend, struct rndx_ext *,
RNDXR *));
extern void ecoff_swap_rndx_out PARAMS ((int bigend, RNDXR *,
struct rndx_ext *));
#endif /* ! defined (ECOFF_H) */
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