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70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
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/*
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File: ldfixups.h
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Contains: xxx put contents here xxx
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Written by: xxx put writers here xxx
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Copyright: © 1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<1> 6/22/92 ejb first checked in
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<1> 6/12/92 APS first checked in
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*/
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/* MAK NOTE: This file must be used by the LINKER, COFFCVT, and the LOADER. It would */
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/* be judicious to make sure that a copy of this is not changed without consistency */
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/* checks for the other two programs. */
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/* (IDEALLY, of course, only one file should exist.) */
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/* ---------------------------------------------------------------------------
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LDFIXUPS.H
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This file contains all the #defines and declarations used to do loader
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fixups. Loader Fixups occur when an address is involved in an
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auto-initialization, either through C pointers or anywhere else.
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Instead of fixing those instances up at link time (which produces
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the wrong results due to our sectionalized architecture), we send
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down the necessary information in the executable COFF to coffcvt and
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the loader, in which the resolution ultimately takes place.
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------------------------------------------------------------------------*/
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#define MAXFILESIZE 50 /* number pulled from hat, change at whim */
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#define PATH_SEPARATOR ':' /* our path separator is a colon. */
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/* These are just provided in case some bizzare cross-platform work */
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/* is done such that we need our freads, fwrites, etc. to be consistent. */
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/* L_ stands for "loader stuff", these are the sizes used when writing */
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/* out to or reading from the loader relocation section. */
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#define MAX_SYMSIZE 32 /* 31 chars plus 1 for the NULL */
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#define L_INTSIZE 4 /* sizeof an int on our system */
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#define L_SHORTSIZE 2 /* sizeof a short int on our system */
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#define L_NODESIZE 10+MAX_SYMSIZE
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/* don't change this struct without changing it's size define, above. */
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struct relocation_node
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{ unsigned long whatToPatch; /* sectn & offset of guy who's getting initialized */
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unsigned long valToPatchWith; /* sectn & offset of address going into whatToPatch*/
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unsigned short relocationType; /* relocation type: will need when we do patch-up */
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char symName[MAX_SYMSIZE]; /* valToPatchWith's symbol name; to a max size. */
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};
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/*
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* DSP3210 generics JUST THE ONES WE NEED
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* SEE RELOC.H in the LINKER SOURCE FOR COMPLETE LIST
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*/
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#define R_DSP_16D 044
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#define R_DSP_16SD 045
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#define R_DSP_24D 047
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#define R_DSP_24SD 051
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#define R_DSP_32D 054
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#define R_DSP_32SD 055
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