diff options
| author | Ryan Harkin <ryan.harkin@linaro.org> | 2014-01-15 16:55:07 +0000 |
|---|---|---|
| committer | Dan Handley <dan.handley@arm.com> | 2014-01-20 18:45:04 +0000 |
| commit | 72ee331490beaca752f11fb52112a1e3a582ea13 (patch) | |
| tree | 3a0415012bcaaf3635829b921b6895eb70d9bdd2 | |
| parent | d7a6b0f8ad75c517626f7e7d9bb5a91040b5a037 (diff) | |
Build system: add 'make help' option
Add the 'help' target to the Makefile to present a brief guide to the
various build options available.
Change-Id: Ic3a3489860b6362eb236470ea6b43a16a1b2fe3a
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
| -rw-r--r-- | Makefile | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -70,6 +70,8 @@ BUILD_BL31 := ${BUILD_PLAT}/bl31 BUILD_DIRS := ${BUILD_BL1} ${BUILD_BL2} ${BUILD_BL31} PLATFORMS := $(shell ls -I common plat/) +HELP_PLATFORMS := $(shell echo ${PLATFORMS} | sed 's/ /|/g') + ifeq (${PLAT},) $(error "Error: Unknown platform. Please use PLAT=<platform name> to specify the platform.") endif @@ -257,3 +259,22 @@ ${BUILD_PLAT}/bl31.bin: ${BUILD_BL31}/bl31.elf @echo @echo "Built $@ successfully" @echo + +help: + @echo "usage: ${MAKE} PLAT=<all|${HELP_PLATFORMS}> <all|bl1|bl2|bl31|distclean|clean|dump>" + @echo "" + @echo "PLAT is used to specify which platform you wish to build." + @echo "" + @echo "Supported Targets:" + @echo " all build the BL1, BL2 and BL31 binaries" + @echo " bl1 build the BL1 binary" + @echo " bl2 build the BL2 binary" + @echo " bl31 build the BL31 binary" + @echo " clean Clean the build for the selected platform" + @echo " distclean Remove all build artifacts for all platforms" + @echo " dump Generate object file dumps" + @echo "" + @echo "note: most build targets require PLAT to be set to a specific platform." + @echo "" + @echo "example: build all targets for the FVP platform:" + @echo " CROSS_COMPILE=aarch64-none-elf- make PLAT=fvp all" |