Since PSoC Creator passes hardcoded softfp as a compiler parameter and appends the custom flags to the end of the command line; we are unable to compile hardfp using PSoC Creator 4.2 Beta 2. As a workaround, enable export to Makefile in Build Settings > Target IDEs and adjust the ABI parameters in platform and toolchain specific configuration file (platform_debug.mk / platform_release.mk). Use this makefile and updated platform_debug.mk / platform_release.mk to generate hardfp elf. We are planning to publish a Knowledge Base Article. Meanwhile, please find attached document for reference.