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link_elf.h revision 1.7.28.2 
      1 /*	$NetBSD: link_elf.h,v 1.7.28.2 2012/03/17 18:28:35 bouyer Exp $	*/
      2 
      3 #ifndef _LINK_ELF_H_
      4 #define	_LINK_ELF_H_
      5 
      6 #include <sys/types.h>
      7 #include <sys/exec_elf.h>
      8 
      9 typedef struct link_map {
     10 	caddr_t		 l_addr;	/* Base Address of library */
     11 #ifdef __mips__
     12 	caddr_t		 l_offs;	/* Load Offset of library */
     13 #endif
     14 	const char	*l_name;	/* Absolute Path to Library */
     15 	void		*l_ld;		/* Pointer to .dynamic in memory */
     16 	struct link_map	*l_next;	/* linked list of of mapped libs */
     17 	struct link_map *l_prev;
     18 } Link_map;
     19 
     20 struct r_debug {
     21 	int r_version;			/* not used */
     22 	struct link_map *r_map;		/* list of loaded images */
     23 	void (*r_brk)(void);		/* pointer to break point */
     24 	enum {
     25 		RT_CONSISTENT,		/* things are stable */
     26 		RT_ADD,			/* adding a shared library */
     27 		RT_DELETE		/* removing a shared library */
     28 	} r_state;
     29 };
     30 
     31 struct dl_phdr_info
     32 {
     33 	Elf_Addr dlpi_addr;			/* module relocation base */
     34 	const char *dlpi_name;			/* module name */
     35 	const Elf_Phdr *dlpi_phdr;		/* pointer to module's phdr */
     36 	Elf_Half dlpi_phnum;			/* number of entries in phdr */
     37 	unsigned long long int dlpi_adds;	/* total # of loads */
     38 	unsigned long long int dlpi_subs;	/* total # of unloads */
     39 	size_t dlpi_tls_modid;
     40 	void *dlpi_tls_data;
     41 };
     42 
     43 __BEGIN_DECLS
     44 
     45 int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *),
     46     void *);
     47 
     48 __END_DECLS
     49 
     50 #endif	/* _LINK_ELF_H_ */
     51