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link_elf.h revision 1.8.2.1 
      1 /*	$NetBSD: link_elf.h,v 1.8.2.1 2010/10/22 07:11:52 uebayasi 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 /*
     21  * This only exists for GDB.
     22  */
     23 struct r_debug {
     24 	int r_version;			/* not used */
     25 	struct link_map *r_map;		/* list of loaded images */
     26 	void (*r_brk)(void);		/* pointer to break point */
     27 	enum {
     28 		RT_CONSISTENT,		/* things are stable */
     29 		RT_ADD,			/* adding a shared library */
     30 		RT_DELETE		/* removing a shared library */
     31 	} r_state;
     32 };
     33 
     34 struct dl_phdr_info
     35 {
     36 	Elf_Addr dlpi_addr;			/* module relocation base */
     37 	const char *dlpi_name;			/* module name */
     38 	const Elf_Phdr *dlpi_phdr;		/* pointer to module's phdr */
     39 	Elf_Half dlpi_phnum;			/* number of entries in phdr */
     40 	unsigned long long int dlpi_adds;	/* total # of loads */
     41 	unsigned long long int dlpi_subs;	/* total # of unloads */
     42 	size_t dlpi_tls_modid;
     43 	void *dlpi_tls_data;
     44 };
     45 
     46 __BEGIN_DECLS
     47 
     48 int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *),
     49     void *);
     50 
     51 __END_DECLS
     52 
     53 #endif	/* _LINK_ELF_H_ */
     54