Fix: timer_expire_entry changed in 4.19.312

[lttng-modules.git] / Makefile

diff --git a/Makefile b/Makefile
index c586efedc8c52538308fc9f81d3373d34709dc2b..8d25816cc053e03e6d8707fc281b0687bf9b81e9 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2,33 +2,10 @@
 
 ifneq ($(KERNELRELEASE),)
 
-  # This part of the Makefile is used when called by the kernel build system
-  # and defines the modules to be built.
-
-  ifdef CONFIG_LOCALVERSION    # Check if dot-config is included.
-    ifeq ($(CONFIG_TRACEPOINTS),)
-      $(error The option CONFIG_TRACEPOINTS needs to be enabled in your kernel configuration)
-    endif # CONFIG_TRACEPOINTS
-  endif # ifdef CONFIG_LOCALVERSION
-
-  TOP_LTTNG_MODULES_DIR := $(shell dirname $(lastword $(MAKEFILE_LIST)))
-
-  lttng_check_linux_version = $(shell pwd)/include/linux/version.h
-  lttng_check_generated_linux_version = $(shell pwd)/include/generated/uapi/linux/version.h
-
-  #
-  # Check for stale version.h, which can be a leftover from an old Linux
-  # kernel tree moved to a newer kernel version, only pruned by make
-  # distclean.
-  #
-  ifneq ($(wildcard $(lttng_check_linux_version)),)
-    ifneq ($(wildcard $(lttng_check_generated_linux_version)),)
-      $(error Duplicate version.h files found in $(lttng_check_linux_version) and $(lttng_check_generated_linux_version). Consider running make distclean on your kernel, or removing the stale $(lttng_check_linux_version) file)
-    endif
-  endif
-
-  obj-$(CONFIG_LTTNG) += src/
-  obj-$(CONFIG_LTTNG) += tests/
+# This part of the Makefile is used when called by the kernel build system
+# and defines the modules to be built.
+
+obj-$(CONFIG_LTTNG) += src/
 
 else # KERNELRELEASE
 
@@ -38,20 +15,52 @@ else # KERNELRELEASE
 
 KERNELDIR ?= /lib/modules/$(shell uname -r)/build
 PWD := $(shell pwd)
-CFLAGS = $(EXTCFLAGS)
+
+# Experimental bitwise enum defaults to disabled.
+CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM ?= n
+
+# Emulate Kconfig behavior of setting defines for config options.
+LKCPPFLAGS = $(KCPPFLAGS)
+ifeq ($(CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM),y)
+LKCPPFLAGS += -DCONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM=y
+endif
 
 default: modules
 
 modules:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules
+       $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
+               CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+               KCPPFLAGS='$(LKCPPFLAGS)' \
+               modules
+
+syscalls_extractor:
+       $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
+               CONFIG_LTTNG_SYSCALLS_EXTRACTOR=m \
+               CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+               KCPPFLAGS='$(LKCPPFLAGS)' \
+               modules
 
 modules_install:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m modules_install
+       $(MAKE) -C $(KERNELDIR) M=$(PWD)/src \
+               CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+               KCPPFLAGS='$(LKCPPFLAGS)' \
+               modules_install
 
 clean:
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) clean
+       $(MAKE) -C $(KERNELDIR) M=$(PWD)/src clean
 
+# The following targets are used for development and debugging. They are not
+# part of the build system.
 %.i: %.c
-       $(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m $@
+       $(MAKE) -C $(KERNELDIR) M=$(PWD) \
+               CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+               KCPPFLAGS='$(LKCPPFLAGS)' \
+               $@
+
+%.o: %.c
+       $(MAKE) -C $(KERNELDIR) M=$(PWD) \
+               CONFIG_LTTNG=m CONFIG_LTTNG_CLOCK_PLUGIN_TEST=m \
+               KCPPFLAGS='$(LKCPPFLAGS)' \
+               $@
 
 endif # KERNELRELEASE