diff options
Diffstat (limited to 'bsd-user/netbsd')
| -rw-r--r-- | bsd-user/netbsd/target_os_stack.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/bsd-user/netbsd/target_os_stack.h b/bsd-user/netbsd/target_os_stack.h new file mode 100644 index 0000000000..503279c1a9 --- /dev/null +++ b/bsd-user/netbsd/target_os_stack.h @@ -0,0 +1,56 @@ +/* + * NetBSD setup_initial_stack() implementation. + * + * Copyright (c) 2013-14 Stacey D. Son + * + * 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 of the License, 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, see <http://www.gnu.org/licenses/>. + */ + +#ifndef _TARGET_OS_STACK_H_ +#define _TARGET_OS_STACK_H_ + +#include "target_arch_sigtramp.h" + +static inline int setup_initial_stack(struct bsd_binprm *bprm, abi_ulong *p, + abi_ulong *stringp) +{ + int i; + abi_ulong stack_base; + + stack_base = (target_stkbas + target_stksiz) - + MAX_ARG_PAGES * TARGET_PAGE_SIZE; + if (p) { + *p = stack_base; + } + if (stringp) { + *stringp = stack_base; + } + + for (i = 0; i < MAX_ARG_PAGES; i++) { + if (bprm->page[i]) { + info->rss++; + if (!memcpy_to_target(stack_base, bprm->page[i], + TARGET_PAGE_SIZE)) { + errno = EFAULT; + return -1; + } + g_free(bprm->page[i]); + } + stack_base += TARGET_PAGE_SIZE; + } + + return 0; +} + +#endif /* !_TARGET_OS_STACK_H_ */ |