mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/*
|
|
* ARM AArch64 sigcode for bsd-user
|
|
*
|
|
* Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
|
|
*
|
|
* This 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 of the License, or (at your option) any later version.
|
|
*
|
|
* This 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 this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef TARGET_ARCH_SIGTRAMP_H
|
|
#define TARGET_ARCH_SIGTRAMP_H
|
|
|
|
/* Compare to ENTRY(sigcode) in arm64/arm64/locore.S */
|
|
static inline abi_long setup_sigtramp(abi_ulong offset, unsigned sigf_uc,
|
|
unsigned sys_sigreturn)
|
|
{
|
|
int i;
|
|
uint32_t sys_exit = TARGET_FREEBSD_NR_exit;
|
|
|
|
uint32_t sigtramp_code[] = {
|
|
/* 1 */ 0x910003e0, /* mov x0, sp */
|
|
/* 2 */ 0x91000000 + (sigf_uc << 10), /* add x0, x0, #SIGF_UC */
|
|
/* 3 */ 0xd2800000 + (sys_sigreturn << 5) + 0x8, /* mov x8, #SYS_sigreturn */
|
|
/* 4 */ 0xd4000001, /* svc #0 */
|
|
/* 5 */ 0xd2800028 + (sys_exit << 5) + 0x8, /* mov x8, #SYS_exit */
|
|
/* 6 */ 0xd4000001, /* svc #0 */
|
|
/* 7 */ 0x17fffffc, /* b -4 */
|
|
/* 8 */ sys_sigreturn,
|
|
/* 9 */ sys_exit
|
|
};
|
|
|
|
for (i = 0; i < 9; i++) {
|
|
tswap32s(&sigtramp_code[i]);
|
|
}
|
|
|
|
return memcpy_to_target(offset, sigtramp_code, TARGET_SZSIGCODE);
|
|
}
|
|
#endif /* TARGET_ARCH_SIGTRAMP_H */
|