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| author | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-11-20 15:40:31 +0000 |
|---|---|---|
| committer | Miquel Sabaté Solà <mikisabate@gmail.com> | 2024-12-05 16:02:50 +0100 |
| commit | bab3fdfd61b3488e1879bc3e53ac17f41d2e8b67 (patch) | |
| tree | a2bcbd5f086d6b351b078a95efd08e7957e470e6 /arch/riscv/linux/Makefile | |
| parent | 9a3324f50679177401eecdedcf80f25ddcdd9042 (diff) | |
| download | farga-bab3fdfd61b3488e1879bc3e53ac17f41d2e8b67.tar.gz farga-bab3fdfd61b3488e1879bc3e53ac17f41d2e8b67.zip | |
linux: Add a program to test the hwprobe syscall
RISC-V on Linux has a hwprobe system call which allows you to discover
what is supported by the running kernel.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
Diffstat (limited to 'arch/riscv/linux/Makefile')
| -rw-r--r-- | arch/riscv/linux/Makefile | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/riscv/linux/Makefile b/arch/riscv/linux/Makefile new file mode 100644 index 0000000..9b813ff --- /dev/null +++ b/arch/riscv/linux/Makefile @@ -0,0 +1,60 @@ +## +# By default everything is silent. If you want to change this behavior, simply +# assign V=1 when calling make. + +V = +ifeq ($(strip $(V)),) + E = @echo + Q = @ +else + E = @\# + Q = +endif + +## +# Compile options. You can use CROSS_COMPILE just like on the Linux Kernel. You +# can also determine the ISA to be used, which defaults to my VisionFive2 board. +# I did not go too much into the rabbit hole of platform-specific flags because +# everything is in assembly anyways and everything is statically linked. Hence +# no `-mcpu`, no `-mtune`, no funny business. + +CC = $(CROSS_COMPILE)gcc +LD = $(CROSS_COMPILE)ld +ISA ?= rv64imafdc_zicntr_zicsr_zifencei_zihpm_zca_zcd_zba_zbb +WARNINGS = -Werror -Wpedantic -Wall -Wextra -Wcast-align -Wcast-qual -Winit-self \ + -Wmissing-include-dirs -Wredundant-decls -Wshadow -Wsign-conversion \ + -Wswitch-default -Wundef -Wunreachable-code -Wmissing-noreturn +CCFLAGS = $(WARNINGS) -march=$(ISA) +LDFLAGS = + + +# You can pass an optional `DEBUG` variable to manipulate the build type. +DEBUG = +ifeq ($(strip $(DEBUG)),) + CCFLAGS += -O3 +else + CCFLAGS += -g +endif + +## +# Paths. + +SRC = $(wildcard *.c) +EXES = $(SRC:.c=) + +## +# Targets + +.PHONY: all +all: clean $(EXES) + +.PHONY: build +build: $(EXES) + +.c: + $(E) " CC " $(*F) + $(Q) $(CC) $(CCFLAGS) $< -o $@ + +.PHONY: clean +clean: + $(Q) rm -f $(EXES) |