NetBSD/include/link_elf.h

71 lines
2.0 KiB
C

/* $NetBSD: link_elf.h,v 1.13 2020/09/22 01:52:16 kamil Exp $ */
#ifndef _LINK_ELF_H_
#define _LINK_ELF_H_
#include <sys/types.h>
#include <sys/exec_elf.h>
#define R_DEBUG_VERSION 1 /* SVR4 Protocol version */
typedef struct link_map {
caddr_t l_addr; /* Base Address of library */
#ifdef __mips__
caddr_t l_offs; /* Load Offset of library */
#endif
const char *l_name; /* Absolute Path to Library */
void *l_ld; /* Pointer to .dynamic in memory */
struct link_map *l_next; /* linked list of mapped libs */
struct link_map *l_prev;
} Link_map;
/*
* Debug rendezvous struct. Pointer to this is set up in the
* target code pointed by the DT_DEBUG tag. If it is
* defined.
*/
struct r_debug {
int r_version; /* protocol version */
struct link_map *r_map; /* list of loaded images */
/*
* This is the address of a function internal to the run-time linker,
* that will always be called when the linker begins to map in a
* library or unmap it, and again when the mapping change is complete.
* The debugger can set a breakpoint at this address if it wants to
* notice shared object mapping changes.
*/
void (*r_brk)(void); /* pointer to break point */
enum {
/*
* This state value describes the mapping change taking place
* when the `r_brk' address is called.
*/
RT_CONSISTENT, /* things are stable */
RT_ADD, /* adding a shared library */
RT_DELETE /* removing a shared library */
} r_state;
void *r_ldbase; /* base address of RTLD */
};
struct dl_phdr_info
{
Elf_Addr dlpi_addr; /* module relocation base */
const char *dlpi_name; /* module name */
const Elf_Phdr *dlpi_phdr; /* pointer to module's phdr */
Elf_Half dlpi_phnum; /* number of entries in phdr */
unsigned long long int dlpi_adds; /* total # of loads */
unsigned long long int dlpi_subs; /* total # of unloads */
size_t dlpi_tls_modid;
void *dlpi_tls_data;
};
__BEGIN_DECLS
int dl_iterate_phdr(int (*)(struct dl_phdr_info *, size_t, void *),
void *);
__END_DECLS
#endif /* _LINK_ELF_H_ */