65 lines
1.7 KiB
C
Executable File
65 lines
1.7 KiB
C
Executable File
#ifndef __MENUETOS_MCOFF_H
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#define __MENUETOS_MCOFF_H
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#include"_coff.h"
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typedef struct {
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char * co_loadptr;
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unsigned long co_loadaddr;
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unsigned long co_filesize;
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FILHDR * co_filehdr;
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SCNHDR * co_sections;
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SYMENT * co_symtab;
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char * co_strtab;
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char * co_bssptr;
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unsigned long co_bssaddr;
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unsigned long co_bsssize;
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unsigned long co_bsssectnum;
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} coffobj_t;
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coffobj_t * mcoff_load_file(char * fname);
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void unload_coff_file(coffobj_t * obj);
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SCNHDR * find_section(char * name,coffobj_t * obj);
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int read_section_data(coffobj_t * obj,SCNHDR * hdr,void ** readp);
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SYMENT * find_coff_symbol(coffobj_t * obj,char * objname);
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typedef int (* symlookupfn_t)(coffobj_t *,unsigned long *,unsigned long *,int);
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int relocate_coff_file(coffobj_t * obj,symlookupfn_t lookupfn);
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int mcoff_std_symlookupfn(coffobj_t * obj,unsigned long * sym_val,
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unsigned long * sym_sect,int index);
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unsigned long mcoff_get_ref(coffobj_t * obj,char * symname);
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/*
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Your lookup function can be similar to this:
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int mcoff_std_symlookupfn(coffobj_t * obj,unsigned long * sym_val,
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unsigned long * sym_sect,int index)
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{
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SYMENT * symtab,* lookup;
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char xname[9];
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char * symnamep;
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symtab=obj->co_symtab+index;
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*sym_sect=(unsigned long)symtab->e_scnum;
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if(symtab->e_scnum>0)
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{
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*sym_val=symtab->e_value;
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return 0;
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}
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if(symtab->e.e.e_zeroes==0)
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{
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symnamep=(char *)(((long)obj->co_strtab)+symtab->e.e.e_offset);
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} else {
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symnamep=(char *)symtab->e.e_name;
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memset(xname,0,9);
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memcpy(xname,symnamep,8);
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symnamep=xname;
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}
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lookup=find_coff_symbol(obj,symnamep);
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if(!lookup) return -1;
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*sym_val=lookup->e_value+obj->co_sections[lookup->e_scnum-1].s_scnptr+obj->co_loadaddr;
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return 0;
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}
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*/
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#endif
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