X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=probes%2FKbuild;h=7f88c9f507f6dd12308273f10d9c03bcd0d50ab0;hb=e28ca43f665181c96531e90958fda734a857542b;hp=b43dd497b5a5341ac6d614f5ae1f8c340884d553;hpb=12ce29c71d1da850b5a44d92ad9756dfa3f6292e;p=lttng-modules.git

diff --git a/probes/Kbuild b/probes/Kbuild
index b43dd497..7f88c9f5 100644
--- a/probes/Kbuild
+++ b/probes/Kbuild
@@ -30,19 +30,37 @@ ifneq ($(CONFIG_KVM),)
   obj-$(CONFIG_LTTNG) += 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
-        CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
-        obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
-        obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
-      else
-        $(warning File $(kvm_dep) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
-      endif # $(wildcard $(kvm_dep))
-    else
+    kvm_dep_lapic_check = $(wildcard $(kvm_dep_lapic))
+    ifneq ($(kvm_dep_lapic_check),)
+      # search for iodev.h in any of its known locations
+      kvm_dep_iodev = $(srctree)/virt/kvm/iodev.h $(srctree)/include/kvm/iodev.h
+      kvm_dep_iodev_check = $(wildcard $(kvm_dep_iodev))
+      ifneq ($(kvm_dep_iodev_check),)
+        kvm_dep_emulate = $(srctree)/arch/x86/kvm/kvm_emulate.h
+        kvm_dep_emulate_wildcard = $(wildcard $(kvm_dep_emulate))
+        kvm_dep_emulate_check = $(shell \
+        if [ \( $(VERSION) -ge 6 \
+           -o \( $(VERSION) -eq 5 -a $(PATCHLEVEL) -eq 7 \) \) -a \
+           -z "$(kvm_dep_emulate_wildcard)" ] ; then \
+          echo "warn" ; \
+        else \
+          echo "ok" ; \
+        fi ;)
+        ifeq ($(kvm_dep_emulate_check),ok)
+          CFLAGS_lttng-probe-kvm-x86.o += -I$(srctree)/virt/kvm \
+                     -I$(srctree)/arch/x86/kvm
+          CFLAGS_lttng-probe-kvm-x86-mmu.o += -I$(srctree)/virt/kvm
+          obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86.o
+          obj-$(CONFIG_LTTNG) += lttng-probe-kvm-x86-mmu.o
+        else # ($(kvm_dep_emulate_check),ok)
+          $(warning File $(kvm_dep_emulate) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
+        endif # ($(kvm_dep_emulate_check),ok)
+      else # $(kvm_dep_iodev_check)
+        $(warning File $(kvm_dep_iodev) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
+      endif # $(kvm_dep_iodev_check)
+    else # $(kvm_dep_lapic_check)
       $(warning File $(kvm_dep_lapic) not found. Probe "kvm" x86-specific is disabled. Use full kernel source tree to enable it.)
-    endif # $(wildcard $(kvm_dep_lapic))
+    endif # $(kvm_dep_lapic_check)
   endif # CONFIG_X86
 endif # CONFIG_KVM
 
@@ -149,7 +167,9 @@ ifneq ($(CONFIG_BTRFS_FS),)
   endif # $(wildcard $(btrfs_dep))
 endif # CONFIG_BTRFS_FS
 
-obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
+ifneq ($(CONFIG_COMPACTION),)
+  obj-$(CONFIG_LTTNG) += lttng-probe-compaction.o
+endif # CONFIG_COMPACTION
 
 ifneq ($(CONFIG_EXT4_FS),)
   ext4_dep = $(srctree)/fs/ext4/*.h
@@ -169,13 +189,11 @@ ifneq ($(CONFIG_FRAME_WARN),0)
   CFLAGS_lttng-probe-printk.o += -Wframe-larger-than=2200
 endif
 
-obj-$(CONFIG_LTTNG) +=  $(shell \
-    if [ $(VERSION) -ge 4 \
-      -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -ge 6 \) \
-      -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 5 -a $(SUBLEVEL) -ge 2 \) \
-      -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 4 -a $(SUBLEVEL) -ge 9 \) \
-      -o \( $(VERSION) -eq 3 -a $(PATCHLEVEL) -eq 0 -a $(SUBLEVEL) -ge 41 \) ] ; then \
-      echo "lttng-probe-random.o" ; fi;)
+# Introduced in v3.6, remove in v5.18
+random_dep = $(srctree)/include/trace/events/random.h
+ifneq ($(wildcard $(random_dep)),)
+  obj-$(CONFIG_LTTNG) += lttng-probe-random.o
+endif
 
 obj-$(CONFIG_LTTNG) +=  $(shell \
   if [ $(VERSION) -ge 4 \
@@ -234,14 +252,6 @@ ifneq ($(CONFIG_KRETPROBES),)
   obj-$(CONFIG_LTTNG) += lttng-kretprobes.o
 endif # CONFIG_KRETPROBES
 
-ifneq ($(CONFIG_DYNAMIC_FTRACE),)
-  ifeq ($(have_ftrace_header),yes)
-    obj-$(CONFIG_LTTNG) += lttng-ftrace.o
-  else
-    $(warning Files $(ftrace_dep) not found. Probe "ftrace" is disabled. Use full kernel source tree to enable it.)
-  endif
-endif # CONFIG_DYNAMIC_FTRACE
-
 ifneq ($(CONFIG_PREEMPTIRQ_EVENTS),)
   obj-$(CONFIG_LTTNG) += lttng-probe-preemptirq.o
 endif # CONFIG_PREEMPTIRQ_EVENTS