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m68knommu: fix strace support for 68328/68360

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strace enabled is marked using the `flags' field of the `thread_info' struct.
68360 version of entry.S did test a wrong bit in a wrong structure
(task_struct).

68328 version of entry.S did test the right bit in the right structure,
but wrongly, because the `flags' field is 32 bit wide, while the used
assembler insn (btst) only accesses a 8 bit byte in memory.

Fix both using code already used in the coldfire version of entry.S

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Philippe De Muyter 2010-08-17 18:58:29 +02:00 committed by Greg Ungerer
parent 47422259b4
commit c8a2786b10
2 changed files with 7 additions and 2 deletions
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2
arch/m68knommu/platform/68328/entry.S
View file

@ -80,7 +80,7 @@ ENTRY(system_call)
movel %sp,%d1 /* get thread_info pointer */
andl #-THREAD_SIZE,%d1
movel %d1,%a2
btst #TIF_SYSCALL_TRACE,%a2@(TI_FLAGS)
btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8)
jne do_trace
cmpl #NR_syscalls,%d0
jcc badsys

7
arch/m68knommu/platform/68360/entry.S
View file

@ -71,7 +71,12 @@ ENTRY(system_call)
jbsr set_esp0
addql #4,%sp
btst #PF_TRACESYS_BIT,%a2@(TASK_FLAGS+PF_TRACESYS_OFF)
movel %sp@(PT_OFF_ORIG_D0),%d0
movel %sp,%d1 /* get thread_info pointer */
andl #-THREAD_SIZE,%d1
movel %d1,%a2
btst #(TIF_SYSCALL_TRACE%8),%a2@(TI_FLAGS+(31-TIF_SYSCALL_TRACE)/8)
jne do_trace
cmpl #NR_syscalls,%d0
jcc badsys