freebsd-skq/stand/powerpc/kboot/host_syscall.S
wma 3c76db63a6 loader: support for mixed-endianness ELF/loader and POWER8
On POWER8 with current petitpoot, the loader.kboot might be
run as little-endian application. The FreeBSD kernel is
always big-endian, so the load_elf_* routines must be aware
of proper endianness of all fields.

Submitted by:          Wojciech Macek <wma@semihalf.com>
Obtained from:         Semihalf
Sponsored by:          IBM, QCM Technologies
Differential revision: https://reviews.freebsd.org/D12422
2018-01-29 09:24:28 +00:00

85 lines
873 B
ArmAsm

/*
*
* $FreeBSD$
*/
#include <machine/asm.h>
ENTRY(host_read)
li %r0, 3 # SYS_read
sc
bso 1f
blr
1:
li %r3, 0
blr
ENTRY(host_write)
li %r0, 4 # SYS_write
sc
blr
ENTRY(host_seek)
mr %r4,%r5
mr %r5,%r6
mr %r6,%r7
li %r0, 140 # SYS_llseek
sc
blr
ENTRY(host_llseek)
li %r0, 140 # SYS_llseek
sc
blr
ENTRY(host_open)
li %r0, 5 # SYS_open
sc
bso 1f
blr
1:
li %r3, 0
blr
ENTRY(host_close)
li %r0, 6 # SYS_close
sc
blr
ENTRY(host_mmap)
li %r0, 90 # SYS_mmap
sc
blr
ENTRY(host_uname)
li %r0, 122 # SYS_uname
sc
blr
ENTRY(host_gettimeofday)
li %r0, 78 # SYS_gettimeofday
sc
blr
ENTRY(host_select)
li %r0, 142 # SYS_select
sc
blr
ENTRY(kexec_load)
lis %r6,21 # KEXEC_ARCH_PPC64
li %r0,268 # __NR_kexec_load
sc
blr
ENTRY(host_reboot)
li %r0,88 # SYS_reboot
sc
blr
ENTRY(host_getdents)
li %r0,141 # SYS_getdents
sc
blr