* David Daney (ddaney@xxxxxxxxxxxxxxxxxx) wrote: > For the 32-bit kernel and all three ABIs of the 64-bit kernel, we need > to test the _TIF_KERNEL_TRACE flag on syscall entry. Otherwise, no > syscall entry tracing for you! Merged into the LTTng tree, thanks ! Mathieu > > Signed-off-by: David Daney <ddaney@xxxxxxxxxxxxxxxxxx> > --- > arch/mips/kernel/scall32-o32.S | 2 +- > arch/mips/kernel/scall64-64.S | 2 +- > arch/mips/kernel/scall64-n32.S | 2 +- > arch/mips/kernel/scall64-o32.S | 2 +- > 4 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S > index fd2a9bb..28f262d 100644 > --- a/arch/mips/kernel/scall32-o32.S > +++ b/arch/mips/kernel/scall32-o32.S > @@ -52,7 +52,7 @@ NESTED(handle_sys, PT_SIZE, sp) > > stack_done: > lw t0, TI_FLAGS($28) # syscall tracing enabled? > - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT > + li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE > and t0, t1 > bnez t0, syscall_trace_entry # -> yes > > diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S > index 18bf7f3..38c0c95 100644 > --- a/arch/mips/kernel/scall64-64.S > +++ b/arch/mips/kernel/scall64-64.S > @@ -54,7 +54,7 @@ NESTED(handle_sys64, PT_SIZE, sp) > > sd a3, PT_R26(sp) # save a3 for syscall restarting > > - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT > + li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE > LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? > and t0, t1, t0 > bnez t0, syscall_trace_entry > diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S > index 3541fd3..fbecc01 100644 > --- a/arch/mips/kernel/scall64-n32.S > +++ b/arch/mips/kernel/scall64-n32.S > @@ -53,7 +53,7 @@ NESTED(handle_sysn32, PT_SIZE, sp) > > sd a3, PT_R26(sp) # save a3 for syscall restarting > > - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT > + li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE > LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? > and t0, t1, t0 > bnez t0, n32_syscall_trace_entry > diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S > index 14dde4c..0db5589 100644 > --- a/arch/mips/kernel/scall64-o32.S > +++ b/arch/mips/kernel/scall64-o32.S > @@ -81,7 +81,7 @@ NESTED(handle_sys, PT_SIZE, sp) > PTR 4b, bad_stack > .previous > > - li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT > + li t1, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_KERNEL_TRACE > LONG_L t0, TI_FLAGS($28) # syscall tracing enabled? > and t0, t1, t0 > bnez t0, trace_a_syscall > -- > 1.6.6.1 > > > _______________________________________________ > ltt-dev mailing list > ltt-dev@xxxxxxxxxxxxxxxxxxxxx > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com
