glibc/sysdeps/unix/sysv/linux
Matheus Castanho 5d61fc2021 powerpc: Add missing registers to clobbers list for syscalls [BZ #27623]
Some registers that can be clobbered by the kernel during a syscall are not
listed on the clobbers list in sysdeps/unix/sysv/linux/powerpc/sysdep.h.

For syscalls using sc:
    - XER is zeroed by the kernel on exit

For syscalls using scv:
    - XER is zeroed by the kernel on exit
    - Different from the sc case, most CR fields can be clobbered (according to
      the ELF ABI and the Linux kernel's syscall ABI for powerpc
      (linux/Documentation/powerpc/syscall64-abi.rst)

The same should apply to vsyscalls, which effectively execute a function call
but are not currently adding these registers as clobbers either.

These are likely not causing issues today, but they should be added to the
clobbers list just in case things change on the kernel side in the future.

Reported-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Raphael M Zinsly <rzinsly@linux.ibm.com>
2021-04-16 08:40:37 -03:00
..
aarch64 nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
alpha nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
arc nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
arm arm: Fix an incorrect check in ____longjmp_chk [BZ #27709] 2021-04-12 14:28:07 +01:00
bits
csky nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
generic
hppa nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
i386 Move __isnanf128 to libc.so 2021-03-30 14:58:19 +05:30
ia64 Move __isnanf128 to libc.so 2021-03-30 14:58:19 +05:30
include
m68k nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
microblaze nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
mips linux: Use statx for MIPSn64 2021-03-29 10:22:13 -03:00
net
netash
netatalk
netax25
neteconet
netinet
netipx
netiucv
netpacket
netrom
netrose
nfs
nios2 nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
powerpc powerpc: Add missing registers to clobbers list for syscalls [BZ #27623] 2021-04-16 08:40:37 -03:00
riscv nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
s390 nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
scsi
sh nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
sparc nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
sys Remove PR_TAGGED_ADDR_ENABLE from sys/prctl.h 2021-04-14 08:45:21 +01:00
wordsize-64
x86
x86_64 Move __isnanf128 to libc.so 2021-03-30 14:58:19 +05:30
Implies
Makefile io: Move file timestamps tests out of Linux 2021-04-15 09:39:43 -03:00
Versions
_G_config.h
_exit.c
a.out.h
accept.c
accept4.c
access.c
adjtime.c
adjtimex.c
aio_misc.h
aio_sigqueue.c
alphasort64.c
arch-fd_to_filename.h
arch-fork.h
bind.c
brk.c
check_native.c
check_pf.c
clock.c
clock_adjtime.c
clock_getcpuclockid.c
clock_getres.c
clock_gettime.c
clock_nanosleep.c
clock_settime.c
close.c
close_nocancel.c
closedir.c
cmsg_nxthdr.c
cnd_timedwait.c
configure
configure.ac
connect.c
copy_file_range.c
creat.c
creat64.c
createthread.c
default-sched.h
device-nrs.h
dirfd.c
dirstream.h
dl-diagnostics-kernel.c
dl-execstack.c
dl-fxstatat64.c
dl-getcwd.c
dl-librecon.h
dl-openat64.c
dl-opendir.c
dl-origin.c
dl-osinfo.h
dl-sbrk.c
dl-sysdep.c
dl-sysdep.h
dl-vdso-setup.c
dl-vdso-setup.h
dl-vdso.h
dl-write.c
dl-writev.h
epoll_pwait.c
epoll_wait.c
errlist-compat.c
errlist-compat.h
errqueue.h
eventfd_read.c
eventfd_write.c
exit-thread.h
faccessat.c
fallocate.c
fallocate64.c
fatal-prepare.h
fchmodat.c
fcntl.c
fcntl64.c
fcntl_nocancel.c
fdatasync.c
fdopendir.c
fexecve.c
filter-nr-syscalls.awk
fips-private.h
fixup-asm-unistd.h
fpathconf.c
fstat.c
fstat64.c
fstatat.c linux: Implement fstatat with __fstatat64_time64 2021-03-29 10:22:13 -03:00
fstatat64.c Fix conform linknamespace tests due to gnu_dev_makedev 2021-03-31 16:10:14 +02:00
fstatfs.c
fstatfs64.c
fstatvfs.c
fstatvfs64.c
fsync.c
ftime.c
ftruncate.c
ftruncate64.c
futimens.c
futimes.c
futimesat.c
fxstat.c
fxstat64.c
fxstatat.c
fxstatat64.c
gai_sigqueue.c
gen-syscall-h.awk
gentempfd.c
getclktck.c
getcpu.c
getcwd.c
getdents.c
getdents64.c
getdirentries.c
getdirentries64.c
getdtsz.c
getentropy.c
gethostid.c
getipv4sourcefilter.c
getitimer.c
getloadavg.c
getlogin.c
getlogin_r.c
getpagesize.c
getpeername.c
getpriority.c
getpt.c
getrandom.c
getrlimit.c
getrlimit64.c
getrusage.c
getsockname.c
getsockopt.c
getsourcefilter.c
getsourcefilter.h
getsysstats.c
gettimeofday.c
glibcsyscalls.py
glob-lstat-compat.c
glob.c
glob64-lstat-compat.c
glob64.c
globfree.c
globfree64.c
grantpt.c
if_index.c
ifaddrs.c
ifreq.c
internal-signals.h nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin 2021-03-26 13:37:18 -03:00
internal_statvfs.c
internal_statvfs.h
ipc_ops.h
ipc_priv.h
kernel-features.h
kernel-posix-cpu-timers.h
kernel-posix-timers.h
kernel_sigaction.h
kernel_stat.h
kernel_termios.h
kstat_cp.h
ldd-rewrite.sed
lddlibc4.c
ldsodefs.h
libc-vdso.h
libc_fatal.c
libc_sigaction.c signal: Add __libc_sigaction 2021-03-18 15:54:39 -03:00
linux_fsinfo.h
listen.c
local-setxid.h
lseek.c
lseek64.c nptl: Remove lseek from libpthread 2021-03-26 13:36:17 -03:00
lstat.c
lstat64.c
lutimes.c
lxstat.c
lxstat64.c
malloc-sysdep.h
mknodat.c
mlock2.c
mmap.c
mmap64.c
mmap_internal.h
mq_close.c
mq_getattr.c
mq_notify.c
mq_open.c
mq_receive.c
mq_send.c
mq_timedreceive.c
mq_timedsend.c
mq_unlink.c
msgctl.c
msgget.c
msgrcv.c
msgsnd.c
msync.c
mtx_timedlock.c
nanosleep.c
netlink_assert_response.c
netlinkaccess.h
nice.c
not-cancel.h
not-errno.h
nscd_setup_thread.c
ntp_gettime.c
ntp_gettimex.c
olddirent.h
oldglob.c
open.c
open64.c nptl: Remove open from libpthread 2021-03-26 13:37:14 -03:00
open64_nocancel.c
open_by_handle_at.c
open_nocancel.c
openat.c
openat64.c
openat64_nocancel.c
openat_nocancel.c
opendir.c
opensock.c
pathconf.c
pathconf.h
paths.h
pause.c
personality.c
pkey_get.c
pkey_mprotect.c
pkey_set.c
poll.c
posix_fadvise.c
posix_fadvise64.c
posix_fallocate.c
posix_fallocate64.c
posix_madvise.c
ppoll.c
prctl.c
pread.c nptl: Remove pread from libpthread 2021-03-26 13:37:18 -03:00
pread64.c nptl: Remove pread from libpthread 2021-03-26 13:37:18 -03:00
pread64_nocancel.c
preadv.c
preadv2.c
preadv64.c
preadv64v2.c
prlimit.c
process_vm_readv.c
process_vm_writev.c
prof-freq.c
profil-counter.h
profil.c
pselect.c
pselect32.c
pthread-pids.h
pthread_getcpuclockid.c
pthread_sigqueue.c
ptrace.c
ptsname.c
pwrite.c nptl: Remove pwrite from libpthread 2021-03-26 13:37:18 -03:00
pwrite64.c nptl: Remove pwrite from libpthread 2021-03-26 13:37:18 -03:00
pwritev.c
pwritev2.c
pwritev64.c
pwritev64v2.c
raise.c
read.c
read_nocancel.c
readahead.c
readdir.c
readdir64.c
readdir64_r.c
readdir_r.c
readonly-area.c
readv.c
reboot.c
recv.c
recvfrom.c
recvmmsg.c
recvmsg.c
remove.c
rename.c
renameat.c
renameat2.c
rewinddir.c
sa_len.c
safe-fatal.h
scandir64.c
sched_getaffinity.c
sched_getcpu.c
sched_rr_gi.c
sched_setaffinity.c
seekdir.c
segfault.c
select.c linux: always update select timeout (BZ #27706) 2021-04-12 18:38:37 -03:00
semctl.c
semget.c
semop.c
semtimedop.c
send.c nptl: Remove send from libpthread 2021-03-26 13:36:17 -03:00
sendmmsg.c
sendmsg.c
sendto.c
setegid.c
seteuid.c
setgid.c
setgroups.c
sethostid.c
setipv4sourcefilter.c
setitimer.c
setregid.c
setresgid.c
setresuid.c
setreuid.c
setrlimit.c
setrlimit64.c
setsockopt.c
setsourcefilter.c
settimeofday.c
settimezone.c
setuid.c
shlib-versions
shmat.c
shmctl.c
shmdt.c
shmget.c
shutdown.c
siglist-compat.c
signal.c
signalfd.c
sigpending.c
sigprocmask.c
sigqueue.c
sigreturn.c
sigset-cvt-mask.h
sigsetops.h
sigstack.c
sigsuspend.c
sigtimedwait.c
sigwait.c
sigwaitinfo.c
single-thread.h
sizes.h
socket.c
socketcall.h
socketpair.c
spawni.c
speed.c
splice.c
stat.c
stat64.c
stat_t64_cp.c
stat_t64_cp.h
statfs.c
statfs64.c
statvfs.c
statvfs64.c
statx.c
statx_cp.c linux: Use statx for MIPSn64 2021-03-29 10:22:13 -03:00
statx_cp.h
struct_kernel_msqid64_ds.h
struct_kernel_semid64_ds.h
struct_kernel_shmid64_ds.h
struct_stat_time64.h
sync_file_range.c
syscall-names.list
syscalls.list
sysconf-sigstksz.h
sysconf.c linux: sysconf: Use a more explicit maximum_ARG_MAX 2021-04-13 17:45:14 -03:00
sysctl.c
sysdep-cancel.h
sysdep-vdso.h
sysdep.h nptl: Remove send from libpthread 2021-03-26 13:36:17 -03:00
tcdrain.c
tcflow.c
tcflush.c
tcgetattr.c
tcgetpgrp.c
tcsendbrk.c
tcsetattr.c
tcsetpgrp.c
tee.c
telldir.c
termio.h
test-errno-linux.c
thrd_priv.h
thrd_sleep.c
time-clockid.h
time.c
time64-support.c
time64-support.h
timer_create.c
timer_delete.c
timer_getoverr.c
timer_gettime.c
timer_routines.c
timer_settime.c
timerfd_gettime.c
timerfd_settime.c
times.c
timespec_get.c
tls-internal.c
tls-internal.h
truncate.c
truncate64.c
tst-adjtimex.c
tst-affinity-pid.c
tst-affinity-static.c
tst-affinity.c
tst-align-clone.c
tst-clock_adjtime.c
tst-clone.c
tst-clone2.c
tst-clone3.c
tst-fallocate-common.c
tst-fallocate.c
tst-fallocate64.c
tst-fanotify.c
tst-getdents64.c
tst-getpid1.c
tst-gettid-kill.c
tst-gettid.c
tst-glibcsyscalls.py
tst-memfd_create.c
tst-mlock2.c
tst-mman-consts.py
tst-ntp_adjtime.c
tst-ntp_gettime.c tst: Add test for ntp_gettime 2021-03-23 12:23:33 +01:00
tst-ntp_gettimex.c tst: Add test for ntp_gettimex 2021-03-23 12:23:33 +01:00
tst-o_path-locks.c
tst-ofdlocks-compat.c
tst-ofdlocks.c
tst-personality.c
tst-pkey.c
tst-ppoll.c
tst-quota.c
tst-readdir64-compat.c
tst-rlimit-infinity.c
tst-sigcontext-get_pc.c
tst-signal-numbers.py
tst-sigtimedwait.c tst: Add test for sigtimedwait 2021-03-23 12:23:33 +01:00
tst-skeleton-affinity.c
tst-skeleton-thread-affinity.c
tst-socket-consts.py
tst-sync_file_range.c
tst-syscall-list.sh
tst-sysconf-iov_max-uapi.c
tst-sysconf-iov_max.c
tst-sysvmsg-linux.c
tst-sysvsem-linux.c
tst-sysvshm-linux.c
tst-tgkill.c
tst-timerfd.c
tst-ttyname.c
ttyname.c
ttyname.h
ttyname_r.c
tv32-compat.h
ualarm.c
umount.c
umount2.c
unlockpt.c
update-syscall-lists.py
updwtmp.c
ustat.c
utime.c
utimensat.c
utimes.c
utmp_file.c
versionsort64.c
vfork.c
vmsplice.c
wait3.c
wait4.c
waitid.c
write.c
write_nocancel.c
writev.c
xmknod.c
xmknodat.c
xstat.c
xstat64.c
xstatconv.c
xstatconv.h
xstatover.h
xstatver.h