diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/bp-start.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/sysdeps/generic/bp-start.h b/sysdeps/generic/bp-start.h deleted file mode 100644 index 069d616d2a..0000000000 --- a/sysdeps/generic/bp-start.h +++ /dev/null @@ -1,71 +0,0 @@ -/* Bounded-pointer checking macros for C. - Copyright (C) 2000-2013 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Greg McGary <greg@mcgary.org> - - 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/>. */ - - -#if __BOUNDED_POINTERS__ - - /* The command-line arg vector and environment vector come to us from - the OS as an unbounded pointer to an array of unbounded strings. - The user's main expects argv and __environ to be bounded pointers - to arrays of bounded strings. */ -# define INIT_ARGV_and_ENVIRON \ - do { \ - int envc; \ - for (envc = 0; *ubp_ev; ubp_ev++, envc++) \ - ; \ - ubp_ev -= envc; \ - \ - /* GKM FIXME: we could save some space by allocating only enough for \ - the additional low & high words, and destructively rewriting \ - argv in place. */ \ - __ptrvalue (argv) = __ptrlow (argv) \ - = alloca ((argc + envc + 2) * sizeof (*argv)); \ - __ptrhigh (argv) = __ptrvalue (argv) + argc + 1; \ - __ptrvalue (__environ) = __ptrlow (__environ) = __ptrhigh (argv); \ - __ptrhigh (__environ) = __ptrvalue (__environ) + envc + 1; \ - boundify_vector (__environ, ubp_ev); \ - boundify_vector (argv, ubp_av); \ - } while (0) - - -/* Copy an unbounded vector of unbounded strings into a bounded - counterpart. */ - -static void -boundify_vector (char **dest, char *__unbounded *__unbounded src) -{ - char *__unbounded s; - for (; *src; src++, dest++) - { - __ptrvalue (*dest) = __ptrlow (*dest) = *src; - __ptrhigh (*dest) = src[1]; - } - *dest = 0; - /* The OS lays out strings contiguously in vector order, - so */ - for (s = __ptrvalue (dest[-1]); *s; s++) - ; - __ptrhigh (dest[-1]) = ++s; -} - -#else - -# define INIT_ARGV_and_ENVIRON __environ = ubp_ev - -#endif |