66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Some ECOFF definitions.
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*/
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#include <stdint.h>
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typedef struct filehdr {
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uint16_t f_magic; /* magic number */
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uint16_t f_nscns; /* number of sections */
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int32_t f_timdat; /* time & date stamp */
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int32_t f_symptr; /* file pointer to symbolic header */
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int32_t f_nsyms; /* sizeof(symbolic hdr) */
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uint16_t f_opthdr; /* sizeof(optional hdr) */
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uint16_t f_flags; /* flags */
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} FILHDR;
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#define FILHSZ sizeof(FILHDR)
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#define MIPSEBMAGIC 0x160
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#define MIPSELMAGIC 0x162
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typedef struct scnhdr {
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char s_name[8]; /* section name */
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int32_t s_paddr; /* physical address, aliased s_nlib */
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int32_t s_vaddr; /* virtual address */
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int32_t s_size; /* section size */
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int32_t s_scnptr; /* file ptr to raw data for section */
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int32_t s_relptr; /* file ptr to relocation */
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int32_t s_lnnoptr; /* file ptr to gp histogram */
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uint16_t s_nreloc; /* number of relocation entries */
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uint16_t s_nlnno; /* number of gp histogram entries */
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int32_t s_flags; /* flags */
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} SCNHDR;
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#define SCNHSZ sizeof(SCNHDR)
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#define SCNROUND ((int32_t)16)
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typedef struct aouthdr {
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int16_t magic; /* see above */
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int16_t vstamp; /* version stamp */
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int32_t tsize; /* text size in bytes, padded to DW bdry*/
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int32_t dsize; /* initialized data " " */
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int32_t bsize; /* uninitialized data " " */
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int32_t entry; /* entry pt. */
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int32_t text_start; /* base of text used for this file */
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int32_t data_start; /* base of data used for this file */
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int32_t bss_start; /* base of bss used for this file */
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int32_t gprmask; /* general purpose register mask */
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int32_t cprmask[4]; /* co-processor register masks */
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int32_t gp_value; /* the gp value used for this object */
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} AOUTHDR;
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#define AOUTHSZ sizeof(AOUTHDR)
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#define OMAGIC 0407
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#define NMAGIC 0410
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#define ZMAGIC 0413
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#define SMAGIC 0411
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#define LIBMAGIC 0443
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#define N_TXTOFF(f, a) \
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((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \
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((a).vstamp < 23 ? \
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((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + 7) & 0xfffffff8) : \
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((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + SCNROUND-1) & ~(SCNROUND-1)) ) )
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#define N_DATOFF(f, a) \
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N_TXTOFF(f, a) + (a).tsize;
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