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-rw-r--r--src/rtld/dl-load.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/src/rtld/dl-load.c b/src/rtld/dl-load.c
deleted file mode 100644
index ae894b6..0000000
--- a/src/rtld/dl-load.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/* Restructure code containing the original statement:
- Copyright (C) 2003 MontaVista Software, Inc.
- Written by Daniel Jacobowitz <drow@mvista.com>, 2003
-
- Restructed and synced to latest eglibc 2.13 by
- Mark Hatle <mark.hatle@windriver.com>, 2011
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* glibc-2.23: elf/dl-load.c */
-
-/* Map in a shared object's segments from the file.
- Copyright (C) 1995-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <assert.h>
-#include <error.h>
-#include <errno.h>
-#include <string.h>
-#include "rtld.h"
-
-/* Add `name' to the list of names for a particular shared object.
- `name' is expected to have been allocated with malloc and will
- be freed if the shared object already has this name.
- Returns false if the object already had this name. */
-static void
-add_name_to_object (struct link_map *l, const char *name)
-{
- struct libname_list *lnp, *lastp;
- struct libname_list *newname;
- size_t name_len;
-
- lastp = NULL;
- for (lnp = l->l_libname; lnp != NULL; lastp = lnp, lnp = lnp->next)
- if (strcmp (name, lnp->name) == 0)
- return;
-
- name_len = strlen (name) + 1;
- newname = (struct libname_list *) malloc (sizeof *newname + name_len);
- if (newname == NULL)
- {
- /* No more memory. */
- _dl_signal_error (ENOMEM, name, NULL, ("cannot allocate name record"));
- return;
- }
- /* The object should have a libname set from _dl_new_object. */
- assert (lastp != NULL);
-
- newname->name = memcpy (newname + 1, name, name_len);
- newname->next = NULL;
- lastp->next = newname;
-}
-
-const char *rtld_progname;
-
-static Elf64_Addr load_addr = 0xdead0000;
-static Elf64_Addr dynamic_addr = 0xfeed0000;
-
-/* mimic behavior of _dl_map_object_from_fd(...)
- Note: this is not a copy of the function! */
-void
-create_map_object_from_dso_ent (struct dso_list *cur_dso_ent)
-{
- struct link_map *l = NULL;
- DSO *dso = cur_dso_ent->dso;
-
- int i;
- Elf_Data *data;
-
-
- const char * realname, * name, *soname;
- int l_type;
-
- soname = dso->soname;
- realname = dso->filename;
- name = dso->filename;
-
- l_type = (dso->ehdr.e_type == ET_EXEC ? lt_executable : lt_library);
-
-
- /* Print debug message. */
- if ((l_type == lt_library && !is_ldso_soname(soname)) &&
- __glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_FILES))
- _dl_debug_printf("file=%s [0]; generating link map\n", soname);
-
-
- l = _dl_new_object (realname, name, l_type);
- if (l == NULL)
- {
- _dl_signal_error(errno, name, NULL, "cannot create shared object descriptor");
- }
-
- if (soname)
- add_name_to_object(l, soname);
-
- if (name)
- add_name_to_object(l, name);
-
- l->filename = dso->filename;
-
- /* Set the elfclass */
- l->elfclass = gelf_getclass (dso->elf);
-
- /*** Setup the l_info as if this had been loaded into memory ***/
-
- /* FIXME: gelfify, endianness issues */
- /* and leaks? */
- i = addr_to_sec (dso, dso->info[DT_SYMTAB]);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[DT_SYMTAB] = data->d_buf;
- }
-
- i = addr_to_sec (dso, dso->info[DT_STRTAB]);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[DT_STRTAB] = data->d_buf;
- }
-
- if (dynamic_info_is_set (dso, DT_GNU_HASH_BIT))
- {
- i = addr_to_sec (dso, dso->info_DT_GNU_HASH);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
-
-#if 0
- if (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_FILES))
- printf("l_info DT_GNU_HASH: offset %d -- addr %p (0x%lx) - type %d\n",
- (DT_ADDRTAGIDX(DT_GNU_HASH) + DT_NUM
- + DT_THISPROCNUM + DT_VERSIONTAGNUM
- + DT_EXTRANUM + DT_VALNUM),
- data->d_buf, (unsigned long) data->d_size);
-#endif
-
- l->l_info[DT_ADDRTAGIDX(DT_GNU_HASH) + DT_NUM
- + DT_THISPROCNUM + DT_VERSIONTAGNUM
- + DT_EXTRANUM + DT_VALNUM] = data->d_buf;
-
- /* PPC64 workaround */
- l->l_buckets_start = data->d_buf;
- l->l_buckets_end = (char *)data->d_buf + data->d_size;
- /* end workaround */
- }
- }
-
- i = addr_to_sec (dso, dso->info[DT_HASH]);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[DT_HASH] = data->d_buf;
- }
-
- if (dynamic_info_is_set (dso, DT_VERNEED_BIT))
- {
- i = addr_to_sec (dso, dso->info_DT_VERNEED);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[VERSYMIDX (DT_VERNEED)] = data->d_buf;
- }
- }
-
- if (dynamic_info_is_set (dso, DT_VERDEF_BIT))
- {
- i = addr_to_sec (dso, dso->info_DT_VERDEF);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[VERSYMIDX (DT_VERDEF)] = data->d_buf;
- }
- }
-
- if (dynamic_info_is_set (dso, DT_VERSYM_BIT))
- {
- i = addr_to_sec (dso, dso->info_DT_VERSYM);
- if (i != -1)
- {
- data = elf_getdata (dso->scn[i], NULL);
- l->l_info[VERSYMIDX (DT_VERSYM)] = data->d_buf;
- }
- }
-
- if (dso->base) {
- l->l_map_start = dso->base;
-
- /* We need to ensure that we don't have two DSOs loading at the same place! */
- struct dso_list * dso_list_ptr;
- for (dso_list_ptr = cur_dso_ent->prev; dso_list_ptr; dso_list_ptr = dso_list_ptr->prev)
- {
- /* This looks for fairly obvious overlaps... */
- if (dso_list_ptr->dso && \
- ((dso_list_ptr->dso->base <= dso->base && dso->base <= dso_list_ptr->dso->end) || \
- (dso->base <= dso_list_ptr->dso->base && dso_list_ptr->dso->base <= dso->end)) \
- )
- {
- l->l_map_start = (Elf64_Addr)NULL;
- break;
- }
- }
- }
-
- if (l->l_map_start == (Elf64_Addr)NULL)
- {
- l->l_map_start = load_addr;
- load_addr += ( ((dso->end - dso->base) + (0x1000 - 1)) & (~(0x1000-1)) );
- }
-
- l->sym_base = dso->info[DT_SYMTAB] - dso->base;
-
- if ((l_type == lt_library && !is_ldso_soname(soname))
- && (__glibc_unlikely (GLRO(dl_debug_mask) & DL_DEBUG_FILES))) {
- _dl_debug_printf ("\
- dynamic: 0x%0*lx base: 0x%0*lx size: 0x%0*Zx\n",
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- (unsigned long int) dynamic_addr,
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- (unsigned long int) l->l_map_start,
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- (dso->end - dso->base));
- _dl_debug_printf ("\
- entry: 0x%0*lx phdr: 0x%0*lx phnum: %*u\n",
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- (unsigned long int) l->l_map_start + dso->ehdr.e_entry,
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- (unsigned long int) l->l_map_start + dso->ehdr.e_ehsize,
- (int) sizeof (void *) * (gelf_getclass (dso->elf) == ELFCLASS64 ? 2 : 1),
- dso->ehdr.e_phnum);
- _dl_debug_printf ("\n");
-
- /* Only used for debugging output */
- dynamic_addr += ( ((dso->end - dso->base) + (0x1000 - 1)) & (~(0x1000-1)) );
- }
-
- /* Set up the symbol hash table. */
- _dl_setup_hash (l);
-
- for (i = 0; i < dso->ehdr.e_phnum; ++i)
- if (dso->phdr[i].p_type == PT_TLS)
- {
- l->l_tls_blocksize = dso->phdr[i].p_memsz;
- l->l_tls_align = dso->phdr[i].p_align;
- if (l->l_tls_align == 0)
- l->l_tls_firstbyte_offset = 0;
- else
- l->l_tls_firstbyte_offset = dso->phdr[i].p_vaddr & (l->l_tls_align - 1);
- break;
- }
-
- l->machine = dso->ehdr.e_machine;
-
- cur_dso_ent->map = l;
-}
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-05 15:28:22 +0000