Skip to content

Detect toolchain automatically #77

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Oct 22, 2022
Merged

Detect toolchain automatically #77

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
32 changes: 14 additions & 18 deletions mk/toolchain.mk
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,24 +9,20 @@ else
endif

# Validate GNU Toolchain for RISC-V
CROSS_COMPILE ?= riscv32-unknown-elf-
RV32_CC = $(CROSS_COMPILE)gcc
RV32_CC := $(shell which $(RV32_CC))
ifndef RV32_CC
# xPack GNU RISC-V Embedded GCC
CROSS_COMPILE = riscv-none-elf-
RV32_CC = $(CROSS_COMPILE)gcc
RV32_CC := $(shell which $(RV32_CC))
ifndef RV32_CC
# DEPRECATED: Replaced by xpack-dev-tools/riscv-none-elf-gcc-xpack
CROSS_COMPILE = riscv-none-embed-
RV32_CC = $(CROSS_COMPILE)gcc
RV32_CC := $(shell which $(RV32_CC))
ifndef RV32_CC
$(warning No GNU Toolchain for RISC-V found.)
CROSS_COMPILE :=
endif
endif
TOOLCHAIN_LIST := riscv-none-elf- \
riscv32-unknown-elf- \
riscv64-unknown-elf- \
riscv-none-embed-

# TODO: add support to clang/llvm based cross compilers
VALID_TOOLCHAIN := $(foreach toolchain,$(TOOLCHAIN_LIST), \
$(shell which $(toolchain)gcc > /dev/null) \
$(if $(filter 0,$(.SHELLSTATUS)),$(toolchain)))

# Get the first element in valid toolchain list
CROSS_COMPILE ?= $(word 1,$(VALID_TOOLCHAIN))
ifeq ($(CROSS_COMPILE),)
$(warning GNU Toolchain for RISC-V is required. Please check package installation)
endif

export CROSS_COMPILE