Commit 04a8a3d0 authored by Michael Karcher's avatar Michael Karcher Committed by Rich Felker

sh: Fix validation of system call number

The slow path for traced system call entries accessed a wrong memory
location to get the number of the maximum allowed system call number.
Renumber the numbered "local" label for the correct location to avoid
collisions with actual local labels.
Signed-off-by: default avatarMichael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Tested-by: default avatarJohn Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Fixes: f3a83088 ("sh: Add a few missing irqflags tracing markers.")
Signed-off-by: default avatarRich Felker <dalias@libc.org>
parent c7bcbc8a
......@@ -199,7 +199,7 @@ syscall_trace_entry:
mov.l @(OFF_R7,r15), r7 ! arg3
mov.l @(OFF_R3,r15), r3 ! syscall_nr
!
mov.l 2f, r10 ! Number of syscalls
mov.l 6f, r10 ! Number of syscalls
cmp/hs r10, r3
bf syscall_call
mov #-ENOSYS, r0
......@@ -353,7 +353,7 @@ ENTRY(system_call)
tst r9, r8
bf syscall_trace_entry
!
mov.l 2f, r8 ! Number of syscalls
mov.l 6f, r8 ! Number of syscalls
cmp/hs r8, r3
bt syscall_badsys
!
......@@ -392,7 +392,7 @@ syscall_exit:
#if !defined(CONFIG_CPU_SH2)
1: .long TRA
#endif
2: .long NR_syscalls
6: .long NR_syscalls
3: .long sys_call_table
7: .long do_syscall_trace_enter
8: .long do_syscall_trace_leave
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