1 /* 2 * Some ECOFF definitions. 3 */ 4 typedef struct filehdr { 5 unsigned short f_magic; /* magic number */ 6 unsigned short f_nscns; /* number of sections */ 7 long f_timdat; /* time & date stamp */ 8 long f_symptr; /* file pointer to symbolic header */ 9 long f_nsyms; /* sizeof(symbolic hdr) */ 10 unsigned short f_opthdr; /* sizeof(optional hdr) */ 11 unsigned short f_flags; /* flags */ 12 } FILHDR; 13 #define FILHSZ sizeof(FILHDR) 14 15 #define MIPSEBMAGIC 0x160 16 #define MIPSELMAGIC 0x162 17 18 typedef struct scnhdr { 19 char s_name[8]; /* section name */ 20 long s_paddr; /* physical address, aliased s_nlib */ 21 long s_vaddr; /* virtual address */ 22 long s_size; /* section size */ 23 long s_scnptr; /* file ptr to raw data for section */ 24 long s_relptr; /* file ptr to relocation */ 25 long s_lnnoptr; /* file ptr to gp histogram */ 26 unsigned short s_nreloc; /* number of relocation entries */ 27 unsigned short s_nlnno; /* number of gp histogram entries */ 28 long s_flags; /* flags */ 29 } SCNHDR; 30 #define SCNHSZ sizeof(SCNHDR) 31 #define SCNROUND ((long)16) 32 33 typedef struct aouthdr { 34 short magic; /* see above */ 35 short vstamp; /* version stamp */ 36 long tsize; /* text size in bytes, padded to DW bdry*/ 37 long dsize; /* initialized data " " */ 38 long bsize; /* uninitialized data " " */ 39 long entry; /* entry pt. */ 40 long text_start; /* base of text used for this file */ 41 long data_start; /* base of data used for this file */ 42 long bss_start; /* base of bss used for this file */ 43 long gprmask; /* general purpose register mask */ 44 long cprmask[4]; /* co-processor register masks */ 45 long gp_value; /* the gp value used for this object */ 46 } AOUTHDR; 47 #define AOUTHSZ sizeof(AOUTHDR) 48 49 #define OMAGIC 0407 50 #define NMAGIC 0410 51 #define ZMAGIC 0413 52 #define SMAGIC 0411 53 #define LIBMAGIC 0443 54 55 #define N_TXTOFF(f, a) \ 56 ((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \ 57 ((a).vstamp < 23 ? \ 58 ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + 7) & 0xfffffff8) : \ 59 ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + SCNROUND-1) & ~(SCNROUND-1)) ) ) 60 #define N_DATOFF(f, a) \ 61 N_TXTOFF(f, a) + (a).tsize; 62