[lttng-dev] [PATCH lttng-modules] Fix: disable kvm probe if lapic.h isn't found

[Mathieu Desnoyers]

Merged into master and stable-2.6, thanks!

Mathieu

----- On Jul 24, 2015, at 2:18 PM, Chris J Arges chris.j.arges at canonical.com wrote:

> In a typical distribution if just linux-headers is installed, lapic.h will
> not be installed. We should check if that file exists and not build the module.
> 
> Signed-off-by: Chris J Arges <chris.j.arges at canonical.com>
> ---
> probes/Makefile | 5 +++++
> 1 file changed, 5 insertions(+)
> 
> diff --git a/probes/Makefile b/probes/Makefile
> index 0314a5e..cc4c352 100644
> --- a/probes/Makefile
> +++ b/probes/Makefile
> @@ -25,6 +25,8 @@ obj-m += lttng-probe-statedump.o
> ifneq ($(CONFIG_KVM),)
> obj-m += lttng-probe-kvm.o
> ifneq ($(CONFIG_X86),)
> +kvm_dep_lapic = $(srctree)/arch/x86/kvm/lapic.h
> +ifneq ($(wildcard $(kvm_dep_lapic)),)
> kvm_dep = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
> ifneq ($(wildcard $(kvm_dep)),)
> CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm
> @@ -40,6 +42,9 @@ obj-m +=  $(shell \
> else
> $(warning File $(kvm_dep) not found. Probe "kvm" x86-specific is disabled. Use
> full kernel source tree to enable it.)
> endif
> +else
> +$(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is
> disabled. Use full kernel source tree to enable it.)
> +endif
> endif
> endif
> 
> --
> 2.1.4
> 
> 
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-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com