diff options
Diffstat (limited to 'libc')
| -rw-r--r-- | libc/misc/internals/__uClibc_main.c | 28 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/getpagesize.c | 24 |
2 files changed, 39 insertions, 13 deletions
diff --git a/libc/misc/internals/__uClibc_main.c b/libc/misc/internals/__uClibc_main.c index 73abcfa77..79b71cb3c 100644 --- a/libc/misc/internals/__uClibc_main.c +++ b/libc/misc/internals/__uClibc_main.c @@ -1,6 +1,6 @@ /* * Manuel Novoa III Feb 2001 - * Erik Andersen Mar 2002 + * Erik Andersen 2002-2004 * * __uClibc_main is the routine to be called by all the arch-specific * versions of crt0.S in uClibc. @@ -15,6 +15,8 @@ #include <features.h> #include <unistd.h> #include <stdlib.h> +#include <string.h> +#include <elf.h> #ifdef __UCLIBC_PROPOLICE__ extern void __guard_setup(void); #endif @@ -44,6 +46,9 @@ extern void weak_function __pthread_initialize_minimal(void); * environ symbol is also included. */ +extern int _dl_secure; +extern size_t _dl_pagesize; + char **__environ = 0; const char *__progname = 0; weak_alias(__environ, environ); @@ -116,6 +121,23 @@ void __attribute__ ((__noreturn__)) __uClibc_start_main(int argc, char **argv, char **envp, void (*app_init)(void), void (*app_fini)(void)) { + unsigned long *aux_dat; + Elf32_auxv_t auxvt[AT_EGID + 1]; + + /* Pull stuff from the ELF header when possible */ + aux_dat = (unsigned long*)envp; + while (*aux_dat) { + aux_dat++; + } + aux_dat++; + while (*aux_dat) { + Elf32_auxv_t *auxv_entry = (Elf32_auxv_t *) aux_dat; + if (auxv_entry->a_type <= AT_EGID) { + memcpy(&(auxvt[auxv_entry->a_type]), auxv_entry, sizeof(Elf32_auxv_t)); + } + aux_dat += 2; + } + _dl_pagesize = (auxvt[AT_PAGESZ].a_un.a_val)? auxvt[AT_PAGESZ].a_un.a_val : 4096; /* If we are dynamically linked the shared lib loader already * did this for us. But if we are statically linked, we need @@ -134,7 +156,7 @@ __uClibc_start_main(int argc, char **argv, char **envp, #ifdef __UCLIBC_CTOR_DTOR__ /* Arrange for the application's dtors to run before we exit. */ - __app_fini = app_fini; + __app_fini = app_fini; /* Run all the application's ctors now. */ if (app_init!=NULL) { @@ -143,7 +165,7 @@ __uClibc_start_main(int argc, char **argv, char **envp, #endif #ifdef __UCLIBC_PROPOLICE__ - __guard_setup (); + __guard_setup (); #endif /* Note: It is possible that any initialization done above could diff --git a/libc/sysdeps/linux/common/getpagesize.c b/libc/sysdeps/linux/common/getpagesize.c index 859338003..72da95bbc 100644 --- a/libc/sysdeps/linux/common/getpagesize.c +++ b/libc/sysdeps/linux/common/getpagesize.c @@ -1,28 +1,32 @@ -/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1991,1992,1995-1997,2000,2002 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 Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. + 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 - Library General Public License for more details. + Lesser General Public License for more details. - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ #include <unistd.h> #include <features.h> #include <sys/param.h> +extern size_t _dl_pagesize; /* Return the system page size. */ int __getpagesize(void) { + if (_dl_pagesize != 0) + return _dl_pagesize; + #ifdef EXEC_PAGESIZE return EXEC_PAGESIZE; #else /* No EXEC_PAGESIZE. */ @@ -36,5 +40,5 @@ int __getpagesize(void) #endif /* NBPG. */ #endif /* EXEC_PAGESIZE. */ } - weak_alias(__getpagesize, getpagesize); + |