Fri Jan 15 18:17:00 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* ecoff-ext.h: Added prototypes for new ECOFF swapping functions. (opt_ext): New structure. * mips.h (ZMAGIC): Defined to be 0413. (_LIB): Defined to be ".lib" (external_reloc): MIPS ECOFF relocs are only 8 bytes. Added macros to aid in swapping.
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@ -1,3 +1,12 @@
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Fri Jan 15 18:17:00 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
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* ecoff-ext.h: Added prototypes for new ECOFF swapping functions.
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(opt_ext): New structure.
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* mips.h (ZMAGIC): Defined to be 0413.
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(_LIB): Defined to be ".lib"
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(external_reloc): MIPS ECOFF relocs are only 8 bytes. Added
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macros to aid in swapping.
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Fri Jan 8 16:19:26 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
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* ecoff-ext.h: Added prototypes for ECOFF swapping functions.
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@ -300,14 +300,46 @@ struct rfd_ext {
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unsigned char rfd[4];
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};
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/* Optimizer symbol external record */
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struct opt_ext {
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unsigned char o_bits1[1];
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unsigned char o_bits2[1];
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unsigned char o_bits3[1];
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unsigned char o_bits4[1];
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struct rndx_ext o_rndx;
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unsigned char o_offset[4];
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};
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#define OPT_BITS2_VALUE_SH_LEFT_BIG 16
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#define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0
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#define OPT_BITS3_VALUE_SH_LEFT_BIG 8
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#define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8
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#define OPT_BITS4_VALUE_SH_LEFT_BIG 0
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#define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16
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/* Prototypes for the swapping functions. These require that sym.h be
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included before this file. */
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extern void ecoff_swap_hdr_in PARAMS ((bfd *, struct hdr_ext *, HDRR *));
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extern void ecoff_swap_hdr_out PARAMS ((bfd *, HDRR *, struct hdr_ext *));
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extern void ecoff_swap_fdr_in PARAMS ((bfd *, struct fdr_ext *, FDR *));
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extern void ecoff_swap_fdr_out PARAMS ((bfd *, FDR *, struct fdr_ext *));
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extern void ecoff_swap_pdr_in PARAMS ((bfd *, struct pdr_ext *, PDR *));
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extern void ecoff_swap_pdr_out PARAMS ((bfd *, PDR *, struct pdr_ext *));
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extern void ecoff_swap_sym_in PARAMS ((bfd *, struct sym_ext *, SYMR *));
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extern void ecoff_swap_sym_out PARAMS ((bfd *, SYMR *, struct sym_ext *));
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extern void ecoff_swap_ext_in PARAMS ((bfd *, struct ext_ext *, EXTR *));
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extern void ecoff_swap_ext_out PARAMS ((bfd *, EXTR *, struct ext_ext *));
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extern void ecoff_swap_dnr_in PARAMS ((bfd *, struct dnr_ext *, DNR *));
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extern void ecoff_swap_dnr_out PARAMS ((bfd *, DNR *, struct dnr_ext *));
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extern void ecoff_swap_tir_in PARAMS ((int bigend, struct tir_ext *, TIR *));
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extern void ecoff_swap_rndx_in PARAMS ((int bigend, struct rndx_ext *,
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RNDXR *));
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extern void ecoff_swap_rndx_out PARAMS ((int bigend, RNDXR *,
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struct rndx_ext *));
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extern void ecoff_swap_rfd_in PARAMS ((bfd *, struct rfd_ext *, RFDT *));
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extern void ecoff_swap_rfd_out PARAMS ((bfd *, RFDT *, struct rfd_ext *));
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extern void ecoff_swap_opt_in PARAMS ((bfd *, struct opt_ext *, OPTR *));
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extern void ecoff_swap_opt_out PARAMS ((bfd *, OPTR *, struct opt_ext *));
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@ -47,6 +47,7 @@ typedef struct external_aouthdr
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#define AOUTSZ (sizeof(AOUTHDR))
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#define ZMAGIC 0413 /* demand load format, eg normal ld output */
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/********************** SECTION HEADER **********************/
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@ -77,6 +78,7 @@ struct external_scnhdr {
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#define _SBSS ".sbss"
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#define _LIT4 ".lit4"
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#define _LIT8 ".lit8"
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#define _LIB ".lib"
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#define DEFAULT_DATA_SECTION_ALIGNMENT 4
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#define DEFAULT_BSS_SECTION_ALIGNMENT 4
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@ -98,16 +100,38 @@ struct external_scnhdr {
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struct external_reloc {
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unsigned char r_vaddr[4];
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unsigned char r_symndx[4];
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unsigned char r_type[2];
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unsigned char pad[2];
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unsigned char r_bits[4];
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};
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/* MIPS ECOFF uses a packed 8 byte format for relocs. These constants
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are used to unpack the r_bits field. FIXME: Check these on a big
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endian machine. */
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#define RELOC_BITS0_SYMNDX_SH_LEFT_BIG 16
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#define RELOC_BITS0_SYMNDX_SH_LEFT_LITTLE 0
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#define RELOC_BITS1_SYMNDX_SH_LEFT_BIG 8
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#define RELOC_BITS1_SYMNDX_SH_LEFT_LITTLE 8
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#define RELOC_BITS2_SYMNDX_SH_LEFT_BIG 0
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#define RELOC_BITS2_SYMNDX_SH_LEFT_LITTLE 16
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#define RELOC_BITS3_TYPE_BIG 0x3C
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#define RELOC_BITS3_TYPE_SH_BIG 2
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#define RELOC_BITS3_TYPE_LITTLE 0x78
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#define RELOC_BITS3_TYPE_SH_LITTLE 3
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#define RELOC_BITS3_EXTERN_BIG 0x01
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#define RELOC_BITS3_EXTERN_LITTLE 0x80
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/* We store the extern field in the r_offset field of a struct
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internal_reloc. FIXME: Do this more sensibly. */
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#define r_extern r_offset
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/* Relevent values for r_type and ecoff. Would someone please document them */
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#define RELOC struct external_reloc
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#define RELSZ 12
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#define RELSZ 8
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/* gcc uses mips-tfile to output type information in special stabs
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entries. These must match the corresponding definition in
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