__ppc_eabi_linker.i

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;/***************************************************************************/
;/*
;
;FILE
;	__ppc_eabi_linker.h
;
;DESCRIPTION
;
;	Linker-generated symbols for sections as defined for use in [EABI95].
;
;-------------------------------------------------------------------------------------------
;ELF sect.		mem ini	siz	ROM addr symbol		  	RAM (virtual) addr	RAM (virtual) end
;--------------- --- ---	--- ----------------------- -------------------	-------------------
;.text			RX	 Y	N/A _f_text_rom				_f_text				_e_text
;.data			RW	 Y	any _f_data_rom				_f_data				_e_data
;.rodata		R	 Y	any _f_rodata_rom			_f_rodata			_e_rodata
;.bss			RW	 0	any 						_f_bss				_e_bss
;
;.sdata			RW	 Y	<=8 _f_sdata_rom			_f_sdata			_e_sdata
;.sbss			RW	 0	<=8 						_f_sbss				_e_sbss
;
;.sdata2		RW*  Y	<=8 _f_sdata2_rom			_f_sdata2			_e_sdata2
;.sbss2			RW	 0	<=8 						_f_sbss2			_e_sbss2
;
;.PPC.EMB.sdata0 RW	 Y	<=8 _f_PPC_EMB_sdata0_rom	_f_PPC_EMB_sdata0	_e_PPC_EMB_sdata0
;.PPC.EMB.sbss0	RW	 0	<=8 N/A						_f_PPC_EMB_sbss0	_e_PPC_EMB_sbss0
;
;(stack)		RW	 N	N/A							_stack_addr			_stack_end
;(heap)			RW	 N	N/A							_heap_addr			_heap_end
;
;-------------------------------------------------------------------------------------------------
;ELF sect.	Name of the ELF section
;mem			Memory access: R = R/O, RW = Read/Write, RW* = intended R/O, but RW, RX = Execute
;siz			Datum size
;ini			Initialized? 0 = filled with zeros, Y = init'ed, N = not init'ed
;end			Virtual address following section
;-------------------------------------------------------------------------------------------------
;
;The symbols above are automatically generated by the linker based on the spelling of the
;section name.  Symbols not above, i.e., symbols for user defined sections follow the same
;naming convention.
;
;In all cases, any '.' in the name is replaced with a '_'.  Addresses begin with a '_f', address
;after last byte in section begine with '_e' and rom addresses end in a '_rom'.  The linker command 
;file allows you to define your own symbols and it allows you to create an alias to the 
;automatically generated symbols.
;
;For example:
;ftext = ADDR(.text); 	// define ftext
;etext = _e_text; 		// create an alias
;
;Calculate the size of the section by subtracting the begin RAM address from the end RAM
;address.
;
;REFERENCES
;
;	[EABI95]	PowerPC Embedded Application Binary Interface,
;				32-bit Implementation.	Version 1.0, Initial Release,
;				1/10/95.  Stephen Sobek, Motorola, and Kevin Burke, IBM.
;
;NOTES
;
;COPYRIGHT	
;	(c) 1996-7 Metrowerks Corporation
;	All rights reserved.
;
;HISTORY
;	97 APR 16 LLY	Moved from __start.c, new names for 4/1/97 PPC EABI tools.
;	97 JUN 8 MEA	New names for 6/8/97 PPC EABI tools (C++ exceptions).
;	97 JULY 1 JFH	created ASM version .i from .h
;	97 SEP 11 MEA	_heap_size and _stack_size are now in bytes.
;	97 DEC  7 MEA	linker generated symbols are now forced into the .init section.
;					Created new symbols _bss_init_info and _rom_copy_info.
;	98 JAN 14 MEA	New spelling for symbols.
;	98 JAN 20 MEA	Removed size symbols and added end symbols to make them
;					easier to access from C.
;
;*/
;/***************************************************************************/


;/*
; *	Stack and heap pointers and size
; */
 
.extern _stack_addr;		;/* ( char [] ) starting address for stack pointer */
.extern _stack_end;			;/* ( char [] ) address after end byte of stack */
.extern _heap_addr;			;/* ( char [] ) starting address for heap */
.extern _heap_end;			;/* ( char [] ) address after end byte of heap */

;/*
; *	extabindex -- read only C++ Exception Tables
; */
 
.extern _fextabindex_rom;	;/* ( const char [] ) extabindex source (ROM) address at beginning */
.extern _fextabindex;		;/* ( char [] ) extabindex dest. (RAM) address at beginning */
.extern _eextabindex;		;/* ( char [] ) extabindex dest. (RAM) address after end byte */

;/*
; *	Small Data pointers (PPC EABI)
; */

.extern _SDA_BASE_;			;/* ( char [] ) Small Data Area (<=8 bytes) base addr */
							;			/* used for .sdata, .sbss */
.extern _SDA2_BASE_;		;/* ( char [] ) Small Data Area 2 (<=8 bytes), base addr */
							;			/* used for .sdata2, .sbss2 */

;/*
; *	Special symbol for copying sections from rom to ram: _data_copy_info
; *	if size field is zero, there are no more valid sections
; *	see __init_data for example.  _rom_copy_info is a true C variable.
; */

;typedef struct __rom_copy_info {
;	char * 			rom;		// address in rom
;	char * 			addr;		// address in ram (executing address)
;	unsigned int	size;		// size of section
;} __rom_copy_info;

.extern _rom_copy_info;	/* ( __rom_copy_info [] ) An array of all initialized (data, text or mixed) sections */

;/*
; *	Special symbol for initializing bss type sections: _bss_init_info
; *	if size field is zero, there are no more valid sections
; *	see __init_data for example.  _bss_init_info is a true C variable.
; */

;typedef struct __bss_init_info {
;	char * 			addr;		// address in ram (executing address)
;	unsigned int	size;		// size of section
;} __bss_init_info;

.extern _bss_init_info;	/* ( __bss_init_info [] ) An array of all uninitialized data sections */

;/*	
; *	If you use the CodeWarrior start-up routines in __start.c and __ppc_eabi_init.c,
; *	the above are the only linker generated symbols you will need.  The linker, however
; *	will still automatically generate symbols for each output section in your project.
; *	The following are declarations for the standard sections.
; */

;/*
; *	.init -- executable PowerPC EABI code
; */

.extern _f_init_rom;		;/* ( const char [] ) .init source (ROM) address at beginning */
.extern _f_init;			;/* ( char [] ) .init dest. (RAM) address at beginning */
.extern _e_init;			;/* ( char [] ) .init dest. (RAM) address after end byte */

;/*
; *	.text -- executable PowerPC EABI code
; */
 
.extern _f_text_rom;		;/* ( const char [] ) .text source (ROM) address at beginning */
.extern _f_text;			;/* ( char [] ) .text dest. (RAM) address at beginning */
.extern _e_text;			;/* ( char [] ) .text dest. (RAM) address after end byte */

;/*
; *	.rodata -- read only data
; */
 
.extern _f_rodata_rom;		;/* ( const char [] ) .rodata source (ROM) address at beginning */
.extern _f_rodata;			;/* ( char [] ) .rodata dest. (RAM) address at beginning */
.extern _e_rodata;			;/* ( char [] ) .rodata dest. (RAM) address after end byte */

;/*
; *	extab -- read only C++ Exception Tables
; */
 
.extern _fextab_rom;		;/* ( const char [] ) extab source (ROM) address at beginning */
.extern _fextab;			;/* ( char [] ) extab dest. (RAM) address at beginning */
.extern _eextab;			;/* ( char [] ) extab dest. (RAM) address after end byte */

;/*
; *	.data -- read/write initialized data
; */

.extern _f_data_rom;		;/* ( const char [] ) .data source (ROM) address at beginning */
.extern _f_data;			;/* ( char [] ) .data dest. (RAM) address at beginning */
.extern _e_data;			;/* ( char [] ) .data dest. (RAM) address after end byte */

;/*
; *	.bss -- read/write initialized (zeroed) data
; */
 
.extern _f_bss;			;/* ( char [] ) .bss dest. (RAM) address at beginning */
.extern _e_bss;			;/* ( char [] ) .bss dest. (RAM) address after end byte */

;/*
; *	.sdata -- small data
; */
 
.extern _f_sdata_rom;		;/* ( const char [] ) .sdata source (ROM) address at beginning */
.extern _f_sdata;			;/* ( char [] ) .sdata dest. (RAM) address at beginning */
.extern _e_sdata;			;/* ( char [] ) .sdata dest. (RAM) address after end byte */

;/*
; *	.sbss -- small initialized (zeroed) data
; */
 
.extern _f_sbss;			;/* ( char [] ) .sbss dest. (RAM) address at beginning */
.extern _e_sbss;			;/* ( char [] ) .sbss dest. (RAM) address after end byte */

;/*
; *	.sdata2 -- PPC embedded small initlialized data
; */

.extern _f_sdata2_rom;		;/* ( const char [] ) .sdata2 source (ROM) address at beginning */
.extern _f_sdata2;			;/* ( char [] ) .sdata2 dest. (RAM) address at beginning */
.extern _e_sdata2;			;/* ( char [] ) .sdata2 dest. (RAM) address after end byte */

;/*
; *	.sbss2 -- PPC embedded small initialized (zeroed) data
; */
 
.extern _f_sbss2;			;/* ( char [] ) .sbss2 dest. (RAM) address at beginning */
.extern _e_sbss2;			;/* ( char [] ) .sbss2 dest. (RAM) address after end byte */

;/*
; *	.PPC.EMB.sdata0 -- PPC embedded small data centered around addr. zero
; */

.extern _f_PPC_EMB_sdata0_rom;		;/* ( const char [] ) .PPC.EMB.sdata0 source (ROM) address at beginning */
.extern _f_PPC_EMB_sdata0;			;/* ( char [] ) .PPC.EMB.sdata0 dest. (RAM) address at beginning */
.extern _e_PPC_EMB_sdata0;			;/* ( char [] ) .PPC.EMB.sdata0 dest. (RAM) address after end byte */

;/*
; *	.PPC.EMB.sbss0 -- PPC embedded small initlialized (zeroed) data
; */

.extern _f_PPC_EMB_sbss0;			;/* ( char [] ) .PPC.EMB.sbss0 dest. (RAM) address at beginning */
.extern _e_PPC_EMB_sbss0;			;/* ( char [] ) .PPC.EMB.sbss0 dest. (RAM) address after end byte */