diff --git a/Makefile b/Makefile index 1e2f324c0..ae68dc76b 100644 --- a/Makefile +++ b/Makefile @@ -625,16 +625,23 @@ cscope: ${Q}cscope -b -q -k help: - @echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> " + @echo "usage: ${MAKE} PLAT=<${HELP_PLATFORMS}> [OPTIONS] [TARGET]" @echo "" @echo "PLAT is used to specify which platform you wish to build." @echo "If no platform is specified, PLAT defaults to: ${DEFAULT_PLAT}" @echo "" + @echo "Please refer to the User Guide for a list of all supported options." + @echo "Note that the build system doesn't track dependencies for build " + @echo "options. Therefore, if any of the build options are changed " + @echo "from a previous build, a clean build must be performed." + @echo "" @echo "Supported Targets:" - @echo " all Build the BL1, BL2 and BL31 binaries" + @echo " all Build all individual bootloader binaries" @echo " bl1 Build the BL1 binary" @echo " bl2 Build the BL2 binary" - @echo " bl31 Build the BL31 binary" + @echo " bl31 Build the BL3-1 binary" + @echo " bl32 Build the BL3-2 binary" + @echo " fip Build the Firmware Image Package (FIP)" @echo " checkcodebase Check the coding style of the entire source tree" @echo " checkpatch Check the coding style on changes in the current" @echo " branch against BASE_COMMIT (default origin/master)" @@ -644,7 +651,7 @@ help: @echo " certtool Build the Certificate generation tool" @echo " fiptool Build the Firmware Image Package(FIP) creation tool" @echo "" - @echo "note: most build targets require PLAT to be set to a specific platform." + @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"