diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Makefile | 6 | ||||
| -rw-r--r-- | build/clean.mk | 10 | ||||
| -rw-r--r-- | build/defs.mk | 24 | ||||
| -rw-r--r-- | build/hexagon.mk | 95 | ||||
| -rw-r--r-- | build/main.mk | 26 | ||||
| -rw-r--r-- | build/outdir.mk | 12 | ||||
| -rw-r--r-- | platform/platform.mk | 20 |
8 files changed, 194 insertions, 0 deletions
@@ -3,3 +3,4 @@ bazel-chre bazel-genfiles bazel-out bazel-testlogs +out diff --git a/Makefile b/Makefile new file mode 100644 index 00000000..c81481a0 --- /dev/null +++ b/Makefile @@ -0,0 +1,6 @@ +# +# All Makefile logic is located in the build/ directory and the main entry-point +# is included here for convenience. +# + +include build/main.mk diff --git a/build/clean.mk b/build/clean.mk new file mode 100644 index 00000000..3609caa2 --- /dev/null +++ b/build/clean.mk @@ -0,0 +1,10 @@ +# +# Cleanup the project by removing the output directory. +# + +include build/defs.mk + +.PHONY: clean + +clean: + rm -rf $(OUT) diff --git a/build/defs.mk b/build/defs.mk new file mode 100644 index 00000000..360701ca --- /dev/null +++ b/build/defs.mk @@ -0,0 +1,24 @@ +# +# Common global constants used as part of the build. +# + +# Build Artifacts Directory #################################################### + +OUT=out + +# Common Compiler Flags ######################################################## + +# CHRE requires C++11 support. +COMMON_CFLAGS += -std=c++11 + +# Configure warnings. +COMMON_CFLAGS += -Wall +COMMON_CFLAGS += -Werror + +# Disable exceptions and RTTI. +COMMON_CFLAGS += -fno-exceptions +COMMON_CFLAGS += -fno-rtti + +# Enable the linker to garbage collect unused code and variables. +COMMON_CFLAGS += -fdata-sections +COMMON_CFLAGS += -ffunction-sections diff --git a/build/hexagon.mk b/build/hexagon.mk new file mode 100644 index 00000000..f548c65c --- /dev/null +++ b/build/hexagon.mk @@ -0,0 +1,95 @@ +# +# Build CHRE into a static archive to be linked by the toolchain. +# + +include build/defs.mk + +.PHONY: hexagon + +# Hexagon Check ################################################################ + +# If building for the Hexagon target, ensure that the user has specified a path +# to the Hexagon toolchain that they wish to use. + +ifneq ($(filter hexagon all, $(MAKECMDGOALS)),) +ifeq ($(HEXAGON_TOOLS_PREFIX),) +$(error "You must supply a HEXAGON_TOOLS_PREFIX environment variable \ + containing a path to the hexagon toolchain. Example: \ + $$HOME/Qualcomm/HEXAGON_Tools/8.0.07") +endif + +ifeq ($(HEXAGON_SDK_PREFIX),) +$(error "You must supply a HEXAGON_SDK_PREFIX environment variable \ + containing a path to the hexagon SDK. Example: \ + $$HOME/Qualcomm/Hexagon_SDK/3.0") +endif +endif + +# Hexagon Tools ################################################################ + +HEXAGON_CC = $(HEXAGON_TOOLS_PREFIX)/Tools/bin/hexagon-clang +HEXAGON_AR = $(HEXAGON_TOOLS_PREFIX)/Tools/bin/hexagon-ar + +# Hexagon Compiler Flags ####################################################### + +HEXAGON_CFLAGS += $(COMMON_CFLAGS) + +# Include paths. +HEXAGON_CFLAGS += -I$(HEXAGON_SDK_PREFIX)/incs +HEXAGON_CFLAGS += -I$(HEXAGON_SDK_PREFIX)/incs/stddef/ + +# Enable position independence. +HEXAGON_CFLAGS += -fpic + +# Enable hexagon v6.2 architecture. +HEXAGON_CFLAGS += -mv62 + +# Disable splitting double registers. +HEXAGON_CFLAGS += -mllvm -disable-hsdr + +# Enable the POSIX threading model. +HEXAGON_CFLAGS += -mthread-model posix + +# This code is loaded into a dynamic module. Define this symbol in the event +# that any Qualcomm code needs it. +HEXAGON_CFLAGS += -D__V_DYNAMIC__ + +# TODO: Consider options for setting the optimization level. Maybe an +# environment variable can suffice here. +HEXAGON_CFLAGS += -O0 + +# TODO: Probably want to disable this when compiling for >-O0. +HEXAGON_CFLAGS += -D_DEBUG + +# Hexagon Static Archive ####################################################### + +HEXAGON_ARFLAGS = -rsc + +HEXAGON_ARCHIVE = $(OUT)/hexagon/libchre.a + +# Hexagon Objects ############################################################## + +HEXAGON_SRCS += $(COMMON_SRCS) +HEXAGON_OBJS = $(patsubst %.cc, $(OUT)/hexagon/%.o, $(HEXAGON_SRCS)) +HEXAGON_DIRS = $(sort $(dir $(HEXAGON_OBJS))) + +# Top-level Hexagon Build Rule ################################################# + +hexagon: $(OUT) $(HEXAGON_DIRS) $(HEXAGON_ARCHIVE) + +all: hexagon + +# Output Directories ########################################################### + +$(HEXAGON_DIRS): + mkdir -p $@ + +# Link ######################################################################### + +$(HEXAGON_ARCHIVE): $(HEXAGON_OBJS) + $(HEXAGON_AR) $(HEXAGON_ARFLAGS) $@ $^ + +# Compile ###################################################################### + +$(HEXAGON_OBJS): $(OUT)/hexagon/%.o: %.cc + $(HEXAGON_CC) $(HEXAGON_CFLAGS) -c $< -o $@ diff --git a/build/main.mk b/build/main.mk new file mode 100644 index 00000000..6017792f --- /dev/null +++ b/build/main.mk @@ -0,0 +1,26 @@ +# +# This is the main entry-point for the CHRE Makefile build system. Different +# components of the build are included below. +# + +ifeq ($(MAKECMDGOALS),) +define EMPTY_GOALS_ERROR +You must specify a target to build. Currently supported targets are: + - all + - hexagon +endef +$(error $(EMPTY_GOALS_ERROR)) +endif + +# The all target to build all source +.PHONY: all +all: + +# Include mk files from each subdirectory. +# TODO: Add mk files for core, chre_api, util +include platform/platform.mk + +# Include all build submodules. +include build/hexagon.mk +include build/outdir.mk +include build/clean.mk diff --git a/build/outdir.mk b/build/outdir.mk new file mode 100644 index 00000000..2f7a01fd --- /dev/null +++ b/build/outdir.mk @@ -0,0 +1,12 @@ +# +# All build artifacts are output in a directory called out/ at the root of the +# project. +# + +include build/defs.mk + +# +# Ensure that the output directory exists. +# +$(OUT): + mkdir -p $(OUT) diff --git a/platform/platform.mk b/platform/platform.mk new file mode 100644 index 00000000..7e37ac44 --- /dev/null +++ b/platform/platform.mk @@ -0,0 +1,20 @@ +# +# Platform Makefile +# + +# Common Compiler Flags ######################################################## + +# Include paths. +COMMON_CFLAGS += -Iplatform/include + +# Common Source Files ########################################################## + +COMMON_SRCS += platform/slpi/init.cc + +# Hexagon-specific Compiler Flags ############################################## + +# Include paths. +HEXAGON_CFLAGS += -Iplatform/slpi/include + +# Symbols required by the runtime for conditional compilation. +HEXAGON_CFLAGS += -DCHRE_MINIMUM_LOG_LEVEL=CHRE_LOG_LEVEL_DEBUG |