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(Redoing check-in lost by SourceForge's failure.)

This commit is contained in:
Michael Brown 2006-05-13 11:30:03 +00:00
parent 8a229a16f6
commit 568cad0ddc
4 changed files with 0 additions and 130 deletions

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#include "registers.h"
#include "main.h"
#include "hooks.h"
/*
* This file provides the basic entry points from assembly code. See
* README.i386 for a description of the entry code path.
*
*/
/*
* arch_main() : call main() and then exit via whatever exit mechanism
* the prefix requested.
*
*/
void arch_main ( struct i386_all_regs *ix86 ) {
void (*exit_path) ( struct i386_all_regs *ix86 );
/* Determine exit path requested by prefix */
exit_path = ( typeof ( exit_path ) ) ix86->regs.eax;
/* Call to main() */
ix86->regs.eax = main();
if ( exit_path ) {
/* Prefix requested that we use a particular function
* as the exit path, so we call this function, which
* must not return.
*/
exit_path ( ix86 );
}
}

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#ifndef HOOKS_H
#define HOOKS_H
extern void arch_main ( struct i386_all_regs *ix86 );
#endif /* HOOKS_H */

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#ifndef RELOCATE_H
#define RELOCATE_H
/* relocate() is conceptually impossible with KEEP_IT_REAL */
#ifndef KEEP_IT_REAL
#include <gpxe/tables.h>
/* An entry in the post-relocation function table */
struct post_reloc_fn {
void ( *post_reloc ) ( void );
};
/* Use double digits to avoid problems with "10" < "9" on alphabetic sort */
#define POST_RELOC_LIBRM 00
/* Macro for creating a post-relocation function table entry */
#define POST_RELOC_FN( order, post_reloc_func ) \
struct post_reloc_fn PREFIX_OBJECT(post_reloc_fn__) \
__table ( post_reloc_fn, order ) = { \
.post_reloc = post_reloc_func, \
};
#endif
#endif /* RELOCATE_H */

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#ifndef INIT_H
#define INIT_H
#include "stddef.h" /* for NULL */
#include <gpxe/tables.h>
/*
* In order to avoid having objects dragged in just because main()
* calls their initialisation function, we allow each object to
* specify that it has a function that must be called to initialise
* that object. The function call_init_fns() will call all the
* included objects' initialisation functions.
*
* Objects that require initialisation should include init.h and
* register the initialisation function using INIT_FN().
*
* Objects may register up to three functions: init, reset and exit.
* init gets called only once, at the point that Etherboot is
* initialised (before the call to main()). reset gets called between
* each boot attempt. exit gets called only once, just before the
* loaded OS starts up (or just before Etherboot exits, if it exits,
* or when the PXE NBP calls UNDI_SHUTDOWN, if it's a PXE NBP).
*
* The syntax is:
* INIT_FN ( init_order, init_function, reset_function, exit_function );
* where init_order is an ordering taken from the list below. Any
* function may be left as NULL.
*/
/* An entry in the initialisation function table */
struct init_fn {
void ( *init ) ( void );
void ( *reset ) ( void );
void ( *exit ) ( void );
};
/* Use double digits to avoid problems with "10" < "9" on alphabetic sort */
#define INIT_LIBRM 01
#define INIT_CONSOLE 02
#define INIT_CPU 03
#define INIT_TIMERS 04
#define INIT_PCIBIOS 05
#define INIT_MEMSIZES 06
#define INIT_RELOCATE 07
#define INIT_LOADBUF 08
#define INIT_PCMCIA 09
#define INIT_HEAP 10
#define INIT_RPC 11
/* Macro for creating an initialisation function table entry */
#define INIT_FN( init_order, init_func, reset_func, exit_func ) \
struct init_fn PREFIX_OBJECT(init_fn__) \
__table ( init_fn, init_order ) = { \
.init = init_func, \
.reset = reset_func, \
.exit = exit_func, \
};
/* Function prototypes */
void call_init_fns ( void );
void call_reset_fns ( void );
void call_exit_fns ( void );
#endif /* INIT_H */