//
-// RLN - Reboot's Linker for the Atari Jaguar Console System
-// RLN.H - Application Header
-// Copyright (C) 199x Allan K. Pratt, 2011 Reboot & Friends
+// RLN - Reboot's Linker for the Atari Jaguar console system
+// Copyright (C) 199x Allan K. Pratt, 2011-2015 Reboot & Friends
//
#ifndef __RLN_H__
#define __RLN_H__
-// Required Include Files
-
-// Macro Definitions
-
-// Requirements for Windows Compilation
#ifdef WIN32
//#define _OPEN_FLAGS _O_BINARY|_O_RDWR
#include <setjmp.h>
#endif
-// Requirements for Mac OS-X or Linux Compilation
-
#ifdef __GCCUNIX__
//#define _OPEN_FLAGS O_RDWR
#define _OPEN_FLAGS O_RDONLY
#endif
#define MAJOR 1 // Major version number
-#define MINOR 3 // Minor version number
+#define MINOR 5 // Minor version number
#define PATCH 2 // Patch release number
#ifdef WIN32
uint32_t bsize;
uint32_t ssize;
union {
- struct { // For .o
+ struct { // For .o
uint32_t tsize; // Text relocation size
uint32_t dsize; // Data relocation size
uint8_t reserved[12];
} reloc;
- struct { // For .abs
- uint32_t stksize; // Unused
- uint32_t tstart; // Start of TEXT
- uint32_t rbflag; // -1 if no fixups at all
- uint32_t dstart; // Start of DATA
+ struct { // For .abs
+ uint32_t stksize; // Unused
+ uint32_t tstart; // Start of TEXT
+ uint32_t rbflag; // -1 if no fixups at all
+ uint32_t dstart; // Start of DATA
uint32_t bstart; // Start of BSS
} abs;
} absrel;
- uint8_t * ostbase; // Base of output symbol table
+ uint8_t * ostbase; // Base of output symbol table
uint32_t fsize; // Length of fixups
- uint8_t * fixups; // Start of fixups
+ uint8_t * fixups; // Start of fixups
};
#define new_oheader() (struct OHEADER *)malloc(sizeof(struct OHEADER))
uint8_t a_gid;
uint16_t a_fimode;
uint32_t a_fsize;
- uint16_t reserved; // Two bytes zeroes btwn header & file
+ uint16_t reserved; // Two bytes zeroes btwn header & file
};
#define new_arheader() (struct ARHEADER *)malloc(sizeof(struct ARHEADER))
-// Object File Structure and Related Items
+// Object file structure and related items
+
+enum { TEXT=0, DATA=1, BSS=2 };
struct OFILE
{
struct OHEADER o_header; // Header of this file
uint8_t * o_image; // Image of this file
uint8_t isArchiveFile; // Temporary extra flag
+//These are likely redundant, and can probably be removed with judicious
+//editing of where they are used (in favor of OHEADER vars)
+ uint32_t segSize[3]; // Size of TEXT, DATA & BSS (aligned)
+ uint32_t segBase[3]; // Accumulated base address of TDB
};
#define new_ofile() (struct OFILE *)malloc(sizeof(struct OFILE))
// Flags in an Object File's o_flags field
// O_USED: means this ofile is used or is on the command line or in a -x
#define O_USED 0x0001
+// N.B.: This is *never* set anywhere in the linker code...
#define O_ARCHIVE 0x0002 // This is a dummy archive entry
// Symbol Record
struct SYMREC
{
- uint8_t s_name[SYMLEN]; // Including null terminator
+ uint8_t s_name[SYMLEN]; // Including null terminator
uint16_t s_type;
uint32_t s_value;
struct SYMREC * s_next;
//#define T_COMMON (T_GLOBAL | T_EXTERN)
// Symbol Table - Type Definitions
-// N.B.: T_EXT can be ORed with any of T_ABS, T_TEXT, TDATA, or T_BSS!
-
-#define T_UNDF 0x00000000 // Undefined Symbol
-#define T_EXT 0x01000000 // External Bit, OR'ed In (Global)
-#define T_ABS 0x02000000 // Absolute Symbol (Equated)
-#define T_TEXT 0x04000000 // TEXT Segment
-#define T_DATA 0x06000000 // DATA Segment
-#define T_BSS 0x08000000 // BSS Segment
+// N.B.: T_GLBL can be ORed with any of T_ABS, T_TEXT, TDATA, or T_BSS!
+// Also, these are really a mashup of a struct, consisting of the
+// following items: type (1 byte), other (1 byte), & descr. (2 bytes).
+// Also, the type is not enough to distinguish between external &
+// common symbols; for this, you need to go to the value field to see
+// what's there (0=external, !0=common).
+
+#define T_UNDF 0x00000000 // Undefined symbol
+#define T_GLBL 0x01000000 // Scoping bit, OR'ed in (global)
+#define T_ABS 0x02000000 // Absolute symbol (equated)
+#define T_TEXT 0x04000000 // TEXT segment
+#define T_DATA 0x06000000 // DATA segment
+#define T_BSS 0x08000000 // BSS segment
#define T_SEG (T_DATA | T_TEXT | T_BSS) // segment bits
// These macros are used with the TYPE field of a SYMBOL.
+// They are also mostly WRONG
/*
Absolutes (equates) can't be externals (line 434)
-- they are non-relocatable
*/
-#define iscommon(type) (((type) & T_EXT) == 0)
-#define islocal(type) (((type) & T_EXT) == 0)
-#define isglobal(type) ((type) & T_EXT)
-#define isextern(type) ((type) & T_EXT)
+#define iscommon(type) (((type) & T_GLBL) == 0)
+#define islocal(type) (((type) & T_GLBL) == 0)
+#define isglobal(type) ((type) & T_GLBL)
+#define isextern(type) ((type) & T_GLBL)
/*
Shamus:
projects / rln / blobdiff