#include "defs.h"
#include "gdbcore.h"
#include "solib-svr4.h"
#ifdef HAVE_LINK_H
#ifdef HAVE_NLIST_H
#include <nlist.h>
#endif
#include <link.h>
static struct link_map_offsets *
legacy_svr4_fetch_link_map_offsets (void)
{
static struct link_map_offsets lmo;
static struct link_map_offsets *lmp = 0;
#if defined (HAVE_STRUCT_LINK_MAP32)
static struct link_map_offsets lmo32;
static struct link_map_offsets *lmp32 = 0;
#endif
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
#endif
#define fieldsize(TYPE, MEMBER) (sizeof (((TYPE *)0)->MEMBER))
if (lmp == 0)
{
lmp = &lmo;
#ifdef HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS
lmo.r_debug_size = sizeof (struct r_debug);
lmo.r_map_offset = offsetof (struct r_debug, r_map);
lmo.r_map_size = fieldsize (struct r_debug, r_map);
lmo.link_map_size = sizeof (struct link_map);
lmo.l_addr_offset = offsetof (struct link_map, l_addr);
lmo.l_addr_size = fieldsize (struct link_map, l_addr);
lmo.l_next_offset = offsetof (struct link_map, l_next);
lmo.l_next_size = fieldsize (struct link_map, l_next);
lmo.l_prev_offset = offsetof (struct link_map, l_prev);
lmo.l_prev_size = fieldsize (struct link_map, l_prev);
lmo.l_name_offset = offsetof (struct link_map, l_name);
lmo.l_name_size = fieldsize (struct link_map, l_name);
#else
#ifdef HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS
lmo.link_map_size = sizeof (struct link_map);
lmo.l_addr_offset = offsetof (struct link_map, lm_addr);
lmo.l_addr_size = fieldsize (struct link_map, lm_addr);
lmo.l_next_offset = offsetof (struct link_map, lm_next);
lmo.l_next_size = fieldsize (struct link_map, lm_next);
lmo.l_name_offset = offsetof (struct link_map, lm_name);
lmo.l_name_size = fieldsize (struct link_map, lm_name);
#else
#if HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS
lmo.link_map_size = sizeof (struct so_map);
lmo.l_addr_offset = offsetof (struct so_map, som_addr);
lmo.l_addr_size = fieldsize (struct so_map, som_addr);
lmo.l_next_offset = offsetof (struct so_map, som_next);
lmo.l_next_size = fieldsize (struct so_map, som_next);
lmo.l_name_offset = offsetof (struct so_map, som_path);
lmo.l_name_size = fieldsize (struct so_map, som_path);
#endif
#endif
#endif
}
#if defined (HAVE_STRUCT_LINK_MAP32)
if (lmp32 == 0)
{
lmp32 = &lmo32;
lmo32.r_debug_size = sizeof (struct r_debug32);
lmo32.r_map_offset = offsetof (struct r_debug32, r_map);
lmo32.r_map_size = fieldsize (struct r_debug32, r_map);
lmo32.link_map_size = sizeof (struct link_map32);
lmo32.l_addr_offset = offsetof (struct link_map32, l_addr);
lmo32.l_addr_size = fieldsize (struct link_map32, l_addr);
lmo32.l_next_offset = offsetof (struct link_map32, l_next);
lmo32.l_next_size = fieldsize (struct link_map32, l_next);
lmo32.l_prev_offset = offsetof (struct link_map32, l_prev);
lmo32.l_prev_size = fieldsize (struct link_map32, l_prev);
lmo32.l_name_offset = offsetof (struct link_map32, l_name);
lmo32.l_name_size = fieldsize (struct link_map32, l_name);
}
#endif
#if defined (HAVE_STRUCT_LINK_MAP32)
if (exec_bfd != NULL)
{
if (bfd_get_arch_size (exec_bfd) == 32)
return lmp32;
}
if (TARGET_PTR_BIT == 32)
return lmp32;
#endif
return lmp;
}
#endif
extern initialize_file_ftype _initialize_svr4_lm;
void
_initialize_svr4_lm (void)
{
#ifdef HAVE_LINK_H
legacy_svr4_fetch_link_map_offsets_hook = legacy_svr4_fetch_link_map_offsets;
#endif
}