85 lines
3.0 KiB
Makefile
85 lines
3.0 KiB
Makefile
# Kbuild - the "makefile" used to build the gburst software.
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#
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# Invocations
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# 1. usual: as a part of a full kernel build if CONFIG_GPU_BURST is
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# defined as "y" or "m". This file ("Kbuild") is selected by the kernel
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# build system because "Kbuild" has priority over "Makefile".
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#
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# In which case, either:
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# -- (CONFIG_GPU_BURST=y) the gburst software is built-in to the kernel.
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# or
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# -- (CONFIG_GPU_BURST=m) the gburst software is built as a module into
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# gburst.ko . HOWEVER, some portions of gburst (e.g., hooks into the
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# graphics device driver) are still built into the kernel.
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#
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# 2. Alternate invocation: The module may be built separately from the rest of
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# the kernel (typically to reduce debug cycle time during development):
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# File "Makefile" in this directory is invoked from the command line,
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# defines GBURST_EXT_MOD_BUILD as "y", and then causes Kbuild to be invoked.
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# The kernel against which the module will be loaded should have been created
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# in the usual way with CONFIG_GPU_BURST=m.
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# Requires one of the following have been done:
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# -- "make modules_prepare" (ok, but does not set up Module.symvers)
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# -- "make" or "make bzImage" -- regular kernel build to establish build
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# environment.
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# To add verbosity during build:
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# make KBUILD_VERBOSE=1
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ifeq ($(GBURST_EXT_MOD_BUILD),y)
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CONFIG_GPU_BURST := m
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endif
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# MY_DEBUG - 1 to force compilation to include "-g".
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MY_DEBUG := 1
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# This makefile written for dir: drivers/staging/intel_media/graphics/gburst
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# TOP_REL_* - directory spec relative to top directory.
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# Used for makefile include references.
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# Used for -I header file inclusion.
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TOP_REL_DRIVERS_STAGING := drivers/staging
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ifneq ($(MY_DEBUG),)
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ifneq ($(MY_DEBUG),0)
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# Causes build errors: ## ccflags-y += -O0 -fno-inline
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ifndef CONFIG_DEBUG_INFO
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# If CONFIG_DEBUG_INFO, then "-g" is already present by default.
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ccflags-y += -g
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endif
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endif
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endif
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obj-$(CONFIG_GPU_BURST) += gburst.o
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gburst-y :=
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gburst-y += gburstm.o
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gburst-y += gburst_stats.o
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gburst-y += utilf.o
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gburst_warning_flags :=
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gburst_warning_flags += -Wall -fmessage-length=0 -Wunused-parameter
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gburst_warning_flags += -Wextra -Wno-sign-compare -Wformat-nonliteral -Wformat-security -fdiagnostics-show-option -Wdeclaration-after-statement -Wmissing-format-attribute -Wpointer-arith -Wshadow -Wlogical-op -Wbad-function-cast -Wmissing-prototypes -Wwrite-strings
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# Turn off things that too many kernel headers cause.
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gburst_warning_flags += -Wno-unused-parameter -Wno-pointer-arith -Wno-bad-function-cast
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## gburst_warning_flags += -Wundef -Wc++-compat
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ccflags-y += $(gburst_warning_flags)
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# To request an assembly listing:
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## ccflags-y += -Wa,-alh=$(PWD)/q.lst
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# Variable c_flags is the embodiment of the kbuild compilation options.
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TOP_REL_DEV_SGX := $(TOP_REL_DRIVERS_STAGING)/mrst/pvr/services4/srvkm/devices/sgx
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CFLAGS_gburst_stats.o += -I$(TOP_REL_DEV_SGX)
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TOP_REL_SYSCONFIG := $(TOP_REL_DRIVERS_STAGING)/mrst/pvr/services4/system/intel_drm
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CFLAGS_gburstm.o += -I$(TOP_REL_SYSCONFIG)
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