build: allow multiple toolchain defaults
This change enables a fairly commonly-requested use-case, which is to
fall back to the host system's native toolchain when building on AArch64
if the bare-metal toolchain is not available.
In this situation, if the `aarch64-none-elf` GCC toolchain cannot be
located, the build system will look for `aarch64-linux-gnu` before
giving up.
Change-Id: I39d2a8837b651b28cf0eafa92f6003a7f66767a0
Signed-off-by: Chris Kay <chris.kay@arm.com>
diff --git a/make_helpers/toolchains/rk3399-m0.mk b/make_helpers/toolchains/rk3399-m0.mk
index 92309f1..3a7f173 100644
--- a/make_helpers/toolchains/rk3399-m0.mk
+++ b/make_helpers/toolchains/rk3399-m0.mk
@@ -6,26 +6,26 @@
rk3399-m0-name := RK3399 M0
+rk3399-m0-cc-default-id := gnu-gcc
rk3399-m0-cc-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)gcc
-rk3399-m0-cc-id-default := gnu-gcc
+rk3399-m0-cpp-default-id := gnu-gcc
rk3399-m0-cpp-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)gcc
-rk3399-m0-cpp-id-default := gnu-gcc
+rk3399-m0-as-default-id := gnu-gcc
rk3399-m0-as-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)gcc
-rk3399-m0-as-id-default := gnu-gcc
+rk3399-m0-ld-default-id := gnu-gcc
rk3399-m0-ld-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)gcc
-rk3399-m0-ld-id-default := gnu-gcc
+rk3399-m0-oc-default-id := gnu-objcopy
rk3399-m0-oc-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)objcopy
-rk3399-m0-oc-id-default := gnu-objcopy
+rk3399-m0-od-default-id := gnu-objdump
rk3399-m0-od-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)objdump
-rk3399-m0-od-id-default := gnu-objdump
+rk3399-m0-ar-default-id := gnu-ar
rk3399-m0-ar-default := $(or $(M0_CROSS_COMPILE),arm-none-eabi-)gcc-ar
-rk3399-m0-ar-id-default := gnu-ar
+rk3399-m0-dtc-default-id := generic-dtc
rk3399-m0-dtc-default := dtc
-rk3399-m0-dtc-id-default := generic-dtc