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authorFlorian Weimer <fweimer@redhat.com>2021-05-17 09:59:14 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-05-17 10:08:17 +0200
commitb7fc189f7f0b42145e5ebc23f2bcae118607d7bb (patch)
tree67311ba34bf89a341119e8788f455fe956a186d8 /sysdeps/unix/sysv/linux/powerpc/dl-static.c
parentmips: Remove _dl_var_init (diff)
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powerpc: Remove _dl_var_init
The generic __rtld_static_init code handles GLRO (dl_pagesize), GLRO (dl_auxv), GLRO (dl_hwcap), GLRO (dl_hwcap2). GLRO (dl_cache_line_size) is handled in an __rtld_static_init_arch override. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/dl-static.c')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/dl-static.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/dl-static.c b/sysdeps/unix/sysv/linux/powerpc/dl-static.c
deleted file mode 100644
index e35ca4c44b..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/dl-static.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* Variable initialization. PowerPC version.
- Copyright (C) 2013-2021 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
- <https://www.gnu.org/licenses/>. */
-
-#include <ldsodefs.h>
-
-#ifdef SHARED
-
-void
-_dl_var_init (void *array[])
-{
- /* It has to match "variables" below. */
- enum
- {
- DL_PAGESIZE = 0,
- DL_AUXV = 1,
- DL_HWCAP = 2,
- DL_HWCAP2 = 3,
- DL_CACHE_LINE_SIZE = 4
- };
-
- GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
- GLRO(dl_auxv) = (ElfW(auxv_t) *) *((size_t *) array[DL_AUXV]);
- GLRO(dl_hwcap) = *((unsigned long int *) array[DL_HWCAP]);
- GLRO(dl_hwcap2) = *((unsigned long int *) array[DL_HWCAP2]);
- GLRO(dl_cache_line_size) = (int) *((int *) array[DL_CACHE_LINE_SIZE]);
-}
-
-#else
-
-static void *variables[] =
-{
- &GLRO(dl_pagesize),
- &GLRO(dl_auxv),
- &GLRO(dl_hwcap),
- &GLRO(dl_hwcap2),
- &GLRO(dl_cache_line_size)
-};
-
-static void
-_dl_unprotect_relro (struct link_map *l)
-{
- ElfW(Addr) start = ((l->l_addr + l->l_relro_addr)
- & ~(GLRO(dl_pagesize) - 1));
- ElfW(Addr) end = ((l->l_addr + l->l_relro_addr + l->l_relro_size)
- & ~(GLRO(dl_pagesize) - 1));
-
- if (start != end)
- __mprotect ((void *) start, end - start, PROT_READ | PROT_WRITE);
-}
-
-void
-_dl_static_init (struct link_map *l)
-{
- struct link_map *rtld_map = l;
- struct r_scope_elem **scope;
- const ElfW(Sym) *ref = NULL;
- lookup_t loadbase;
- void (*f) (void *[]);
- size_t i;
-
- loadbase = _dl_lookup_symbol_x ("_dl_var_init", l, &ref, l->l_local_scope,
- NULL, 0, 1, NULL);
-
- for (scope = l->l_local_scope; *scope != NULL; scope++)
- for (i = 0; i < (*scope)->r_nlist; i++)
- if ((*scope)->r_list[i] == loadbase)
- {
- rtld_map = (*scope)->r_list[i];
- break;
- }
-
- if (ref != NULL)
- {
- f = (void (*) (void *[])) DL_SYMBOL_ADDRESS (loadbase, ref);
- _dl_unprotect_relro (rtld_map);
- f (variables);
- _dl_protect_relro (rtld_map);
- }
-}
-
-#endif