mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 03:01:05 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
/* Variable initialization. RISC-V version
|
|
Copyright (C) 2001-2019 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
|
|
};
|
|
|
|
GLRO(dl_pagesize) = *((size_t *) array[DL_PAGESIZE]);
|
|
}
|
|
|
|
#else
|
|
|
|
static void *variables[] =
|
|
{
|
|
&GLRO(dl_pagesize)
|
|
};
|
|
|
|
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
|