/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Some ECOFF definitions.
 */

#include <stdint.h>

typedef struct filehdr {
        uint16_t        f_magic;        /* magic number */
        uint16_t        f_nscns;        /* number of sections */
        int32_t         f_timdat;       /* time & date stamp */
        int32_t         f_symptr;       /* file pointer to symbolic header */
        int32_t         f_nsyms;        /* sizeof(symbolic hdr) */
        uint16_t        f_opthdr;       /* sizeof(optional hdr) */
        uint16_t        f_flags;        /* flags */
} FILHDR;
#define FILHSZ  sizeof(FILHDR)

#define MIPSEBMAGIC     0x160
#define MIPSELMAGIC     0x162

typedef struct scnhdr {
        char            s_name[8];      /* section name */
        int32_t         s_paddr;        /* physical address, aliased s_nlib */
        int32_t         s_vaddr;        /* virtual address */
        int32_t         s_size;         /* section size */
        int32_t         s_scnptr;       /* file ptr to raw data for section */
        int32_t         s_relptr;       /* file ptr to relocation */
        int32_t         s_lnnoptr;      /* file ptr to gp histogram */
        uint16_t        s_nreloc;       /* number of relocation entries */
        uint16_t        s_nlnno;        /* number of gp histogram entries */
        int32_t         s_flags;        /* flags */
} SCNHDR;
#define SCNHSZ          sizeof(SCNHDR)
#define SCNROUND        ((int32_t)16)

typedef struct aouthdr {
        int16_t magic;          /* see above                            */
        int16_t vstamp;         /* version stamp                        */
        int32_t tsize;          /* text size in bytes, padded to DW bdry*/
        int32_t dsize;          /* initialized data "  "                */
        int32_t bsize;          /* uninitialized data "   "             */
        int32_t entry;          /* entry pt.                            */
        int32_t text_start;     /* base of text used for this file      */
        int32_t data_start;     /* base of data used for this file      */
        int32_t bss_start;      /* base of bss used for this file       */
        int32_t gprmask;        /* general purpose register mask        */
        int32_t cprmask[4];     /* co-processor register masks          */
        int32_t gp_value;       /* the gp value used for this object    */
} AOUTHDR;
#define AOUTHSZ sizeof(AOUTHDR)

#define OMAGIC          0407
#define NMAGIC          0410
#define ZMAGIC          0413
#define SMAGIC          0411
#define LIBMAGIC        0443

#define N_TXTOFF(f, a) \
 ((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \
  ((a).vstamp < 23 ? \
   ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + 7) & 0xfffffff8) : \
   ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + SCNROUND-1) & ~(SCNROUND-1)) ) )
#define N_DATOFF(f, a) \
  N_TXTOFF(f, a) + (a).tsize;