mirror of
https://github.com/elliotnunn/sys7.1-doc-wip.git
synced 2024-05-31 13:41:30 +00:00
70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
/*
|
|
File: ldfixups.h
|
|
|
|
Contains: xxx put contents here xxx
|
|
|
|
Written by: xxx put writers here xxx
|
|
|
|
Copyright: © 1992 by Apple Computer, Inc., all rights reserved.
|
|
|
|
Change History (most recent first):
|
|
|
|
<1> 6/22/92 ejb first checked in
|
|
<1> 6/12/92 APS first checked in
|
|
|
|
*/
|
|
|
|
/* MAK NOTE: This file must be used by the LINKER, COFFCVT, and the LOADER. It would */
|
|
/* be judicious to make sure that a copy of this is not changed without consistency */
|
|
/* checks for the other two programs. */
|
|
/* (IDEALLY, of course, only one file should exist.) */
|
|
|
|
/* ---------------------------------------------------------------------------
|
|
LDFIXUPS.H
|
|
This file contains all the #defines and declarations used to do loader
|
|
fixups. Loader Fixups occur when an address is involved in an
|
|
auto-initialization, either through C pointers or anywhere else.
|
|
Instead of fixing those instances up at link time (which produces
|
|
the wrong results due to our sectionalized architecture), we send
|
|
down the necessary information in the executable COFF to coffcvt and
|
|
the loader, in which the resolution ultimately takes place.
|
|
------------------------------------------------------------------------*/
|
|
|
|
#define MAXFILESIZE 50 /* number pulled from hat, change at whim */
|
|
#define PATH_SEPARATOR ':' /* our path separator is a colon. */
|
|
|
|
/* These are just provided in case some bizzare cross-platform work */
|
|
/* is done such that we need our freads, fwrites, etc. to be consistent. */
|
|
/* L_ stands for "loader stuff", these are the sizes used when writing */
|
|
/* out to or reading from the loader relocation section. */
|
|
|
|
#define MAX_SYMSIZE 32 /* 31 chars plus 1 for the NULL */
|
|
#define L_INTSIZE 4 /* sizeof an int on our system */
|
|
#define L_SHORTSIZE 2 /* sizeof a short int on our system */
|
|
#define L_NODESIZE 10+MAX_SYMSIZE
|
|
|
|
|
|
/* don't change this struct without changing it's size define, above. */
|
|
struct relocation_node
|
|
{ unsigned long whatToPatch; /* sectn & offset of guy who's getting initialized */
|
|
unsigned long valToPatchWith; /* sectn & offset of address going into whatToPatch*/
|
|
unsigned short relocationType; /* relocation type: will need when we do patch-up */
|
|
char symName[MAX_SYMSIZE]; /* valToPatchWith's symbol name; to a max size. */
|
|
};
|
|
|
|
|
|
/*
|
|
* DSP3210 generics JUST THE ONES WE NEED
|
|
* SEE RELOC.H in the LINKER SOURCE FOR COMPLETE LIST
|
|
*/
|
|
|
|
|
|
#define R_DSP_16D 044
|
|
#define R_DSP_16SD 045
|
|
|
|
#define R_DSP_24D 047
|
|
#define R_DSP_24SD 051
|
|
|
|
#define R_DSP_32D 054
|
|
#define R_DSP_32SD 055
|