[unix-history] / gnu / usr.bin / ld / rtld / md-prologue.c

/*
 * rtld entry pseudo code - turn into assembler and tweak it
 */

#include <sys/types.h>
#include <sys/types.h>
#include <a.out.h>
#include "link.h"
#include "md.h"

extern long	_GOT_[];
extern void	(*rtld)();
extern void	(*binder())();

void
rtld_entry(version, crtp)
int version;
struct crt *crtp;
{
	register struct link_dynamic	*dp;
	register void			(*f)();

	/* __DYNAMIC is first entry in GOT */
	dp = (struct link_dynamic *) (_GOT_[0]+crtp->crt_ba);

	f = (void (*)())((long)rtld + crtp->crt_ba);
	(*f)(version, crtp, dp);
}

void
binder_entry()
{
	extern int PC;
	struct jmpslot	*sp;
	void	(*func)();

	func = binder(PC, sp->reloc_index & 0x003fffff);
	(*func)();
}
Commit	Line	Data
1136f72d PR	1	/*
	2	* rtld entry pseudo code - turn into assembler and tweak it
	3	*/
	4
	5	#include <sys/types.h>
	6	#include <sys/types.h>
	7	#include <a.out.h>
	8	#include "link.h"
	9	#include "md.h"
	10
	11	extern long _GOT_[];
	12	extern void (*rtld)();
	13	extern void (*binder())();
	14
	15	void
	16	rtld_entry(version, crtp)
	17	int version;
	18	struct crt *crtp;
	19	{
	20	register struct link_dynamic *dp;
	21	register void (*f)();
	22
	23	/* __DYNAMIC is first entry in GOT */
	24	dp = (struct link_dynamic *) (_GOT_[0]+crtp->crt_ba);
	25
	26	f = (void (*)())((long)rtld + crtp->crt_ba);
	27	(*f)(version, crtp, dp);
	28	}
	29
	30	void
	31	binder_entry()
	32	{
	33	extern int PC;
	34	struct jmpslot *sp;
	35	void (*func)();
	36
	37	func = binder(PC, sp->reloc_index & 0x003fffff);
	38	(*func)();
	39	}