include/link_elf.h

   1 /*      $NetBSD: link_elf.h,v 1.10 2010/10/16 10:27:06 skrll 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_ */