57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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/*
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* OpenBSD setup_initial_stack() implementation.
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*
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* Copyright (c) 2013-14 Stacey D. Son
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TARGET_OS_STACK_H_
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#define _TARGET_OS_STACK_H_
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#include "target_arch_sigtramp.h"
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static inline int setup_initial_stack(struct bsd_binprm *bprm, abi_ulong *p,
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abi_ulong *stringp)
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{
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int i;
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abi_ulong stack_base;
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stack_base = (target_stkbas + target_stksiz) -
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MAX_ARG_PAGES * TARGET_PAGE_SIZE;
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if (p) {
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*p = stack_base;
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}
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if (stringp) {
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*stringp = stack_base;
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}
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for (i = 0; i < MAX_ARG_PAGES; i++) {
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if (bprm->page[i]) {
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info->rss++;
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if (!memcpy_to_target(stack_base, bprm->page[i],
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TARGET_PAGE_SIZE)) {
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errno = EFAULT;
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return -1;
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}
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g_free(bprm->page[i]);
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}
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stack_base += TARGET_PAGE_SIZE;
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}
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return 0;
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}
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#endif /* !_TARGET_OS_STACK_H_ */
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