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https://github.com/netwide-assembler/nasm.git
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e0c059ab4e
Export/import/common label size is increased from 33 to 64. Fixed the bug that caused wrong behavior of rdfgetheaderrec() if label length was 32. Changed error codes from numeric values to symbolic constants. Moved some routines from rdfdump.c to rdoff.c. They will be utilized also by rdfdisasm, which is being developed.
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* rdx.c RDOFF Object File loader program
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*
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* The Netwide Assembler is copyright (C) 1996 Simon Tatham and
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* Julian Hall. All rights reserved. The software is
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* redistributable under the licence given in the file "Licence"
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* distributed in the NASM archive.
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*/
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/* note: most of the actual work of this program is done by the modules
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"rdfload.c", which loads and relocates the object file, and by "rdoff.c",
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which contains general purpose routines to manipulate RDOFF object
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files. You can use these files in your own program to load RDOFF objects
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and execute the code in them in a similar way to what is shown here. */
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#include <stdio.h>
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#include <stdlib.h>
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#include "rdfload.h"
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#include "symtab.h"
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typedef int (*main_fn) (int,char**); /* Main function prototype */
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int main(int argc, char **argv)
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{
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rdfmodule * m;
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main_fn code;
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symtabEnt * s;
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if (argc < 2) {
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puts("usage: rdx <rdoff-executable> [params]\n");
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exit(255);
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}
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m = rdfload(argv[1]);
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if (! m) {
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rdfperror("rdx",argv[1]);
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exit(255);
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}
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rdf_relocate(m); /* in this instance, the default relocation
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values will work fine, but they may need changing
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in other cases... */
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s = symtabFind(m->symtab, "_main");
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if (! s) {
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fprintf(stderr,"rdx: could not find symbol '_main' in '%s'\n",argv[1]);
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exit(255);
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}
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code = (main_fn) s->offset;
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argv++, argc--; /* remove 'rdx' from command line */
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return code(argc,argv); /* execute */
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}
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