sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall
PATCH 1/1 sparc64: Fix not SRA'ed %o5 in 32-bit traced syscall
On the way linux_sparc_syscall32->linux_syscall_trace32->goto 2f, register %o5 doesn't extend its sign while it goes from 32 to 64 bit.
Fix that.
Signed-off-by Kirill Tkhai <[email protected]>
CC David Miller <[email protected]>
--- arch/sparc/kernel/syscalls.S | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
arch/sparc/kernel/syscalls.S +4 -4
@@ -152,7 +152,7 @@ linux_syscall_trace32: srl %i4, 0, %o4 srl %i1, 0, %o1 srl %i2, 0, %o2 - ba,pt %xcc, 2f + ba,pt %xcc, 5f srl %i3, 0, %o3 linux_syscall_trace:
@@ -182,13 +182,13 @@ linux_sparc_syscall32: srl %i1, 0, %o1 ! IEU0 Group ldx [%g6 + TI_FLAGS], %l0 ! Load - srl %i5, 0, %o5 ! IEU1 + srl %i3, 0, %o3 ! IEU0 srl %i2, 0, %o2 ! IEU0 Group andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 bne,pn %icc, linux_syscall_trace32 ! CTI mov %i0, %l5 ! IEU1 - call %l7 ! CTI Group brk forced - srl %i3, 0, %o3 ! IEU0 +5: call %l7 ! CTI Group brk forced + srl %i5, 0, %o5 ! IEU1 ba,a,pt %xcc, 3f /* Linux native system calls enter here... */