motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-01 23:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

bsd-user: Move stack initializtion into a per-os file.

Browse source 
Move all of the stack initialization into target_os_stack.h. Each BSD
sets up processes a little differently.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2021-08-04 13:49:21 -06:00 • committed by Warner Losh
parent 03ecf078fa
commit 534217f784
3 changed files with 293 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

56
bsd-user/netbsd/target_os_stack.h Normal file
View file

@ -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_ */