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| author | Mike Marshall <hubcap@omnibond.com> | 2016-08-08 15:43:38 -0400 |
|---|---|---|
| committer | Mike Marshall <hubcap@omnibond.com> | 2016-08-08 15:43:38 -0400 |
| commit | a21aae3bb15a1d08040bdcf5a73504c0da9f5080 (patch) | |
| tree | b83bba5bbdf9d655ff9f03a61af0658d3b4163e9 /scripts/Makefile.gcc-plugins | |
| parent | 302f0493f0bfaabd6f77ce7bfaa12620abf74948 (diff) | |
| parent | 4d20a75677ec7f6f3f266024f3782500bfd406d6 (diff) | |
| download | lwn-a21aae3bb15a1d08040bdcf5a73504c0da9f5080.tar.gz lwn-a21aae3bb15a1d08040bdcf5a73504c0da9f5080.zip | |
Merge tag 'for-hubcap-v4.9-readahead' of git://github.com/martinbrandenburg/linux
orangefs: integrate readahead cache changes from out-of-tree
The readahead cache has long been present as a compile time option to
OrangeFS. As it had not been tested in some time, it was disabled by
default. Recently, Walt Ligon started work reviving it, which eventually
culminated in the commit below to OrangeFS SVN.
r12519 | walt | 2016-07-13 14:32:42 -0400 (Wed, 13 Jul 2016) | 1 line
reintegrating readahead cache code
This cache is implemented almost entirely in userspace. There are a few
parameters exposed via sysfs, and the cache must be flushed after an
inode is released.
Diffstat (limited to 'scripts/Makefile.gcc-plugins')
| -rw-r--r-- | scripts/Makefile.gcc-plugins | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins new file mode 100644 index 000000000000..5e22b60589c1 --- /dev/null +++ b/scripts/Makefile.gcc-plugins @@ -0,0 +1,43 @@ +ifdef CONFIG_GCC_PLUGINS + __PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC)) + PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)") + + SANCOV_PLUGIN := -fplugin=$(objtree)/scripts/gcc-plugins/sancov_plugin.so + + gcc-plugin-$(CONFIG_GCC_PLUGIN_CYC_COMPLEXITY) += cyc_complexity_plugin.so + + ifdef CONFIG_GCC_PLUGIN_SANCOV + ifeq ($(CFLAGS_KCOV),) + # It is needed because of the gcc-plugin.sh and gcc version checks. + gcc-plugin-$(CONFIG_GCC_PLUGIN_SANCOV) += sancov_plugin.so + + ifneq ($(PLUGINCC),) + CFLAGS_KCOV := $(SANCOV_PLUGIN) + else + $(warning warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler) + endif + endif + endif + + GCC_PLUGINS_CFLAGS := $(addprefix -fplugin=$(objtree)/scripts/gcc-plugins/, $(gcc-plugin-y)) + + export PLUGINCC GCC_PLUGINS_CFLAGS GCC_PLUGIN SANCOV_PLUGIN + + ifeq ($(PLUGINCC),) + ifneq ($(GCC_PLUGINS_CFLAGS),) + ifeq ($(call cc-ifversion, -ge, 0405, y), y) + PLUGINCC := $(shell $(CONFIG_SHELL) -x $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)") + $(warning warning: your gcc installation does not support plugins, perhaps the necessary headers are missing?) + else + $(warning warning: your gcc version does not support plugins, you should upgrade it to gcc 4.5 at least) + endif + endif + else + # SANCOV_PLUGIN can be only in CFLAGS_KCOV because avoid duplication. + GCC_PLUGINS_CFLAGS := $(filter-out $(SANCOV_PLUGIN), $(GCC_PLUGINS_CFLAGS)) + endif + + KBUILD_CFLAGS += $(GCC_PLUGINS_CFLAGS) + GCC_PLUGIN := $(gcc-plugin-y) + +endif |