diff options
| -rw-r--r-- | .gitignore | 3 | ||||
| -rw-r--r-- | atos/Makefile | 15 | ||||
| -rw-r--r-- | atos/arch/rv64/jh7110/Makefile | 28 | ||||
| -rw-r--r-- | atos/arch/rv64/jh7110/dev/link.ld | 32 | ||||
| -rw-r--r-- | atos/arch/rv64/jh7110/ke/head.S | 10 | ||||
| -rw-r--r-- | atos/boot/rv64/jh7110/Makefile | 11 | ||||
| -rwxr-xr-x | build.sh | 66 | ||||
| -rw-r--r-- | dev/build.env | 9 | ||||
| -rw-r--r-- | mk/atos.mk | 39 |
9 files changed, 213 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..5b89a7f --- /dev/null +++ b/.gitignore @@ -0,0 +1,3 @@ +*.o +*.d +/out diff --git a/atos/Makefile b/atos/Makefile new file mode 100644 index 0000000..eea25c3 --- /dev/null +++ b/atos/Makefile @@ -0,0 +1,15 @@ +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +.PHONY: all +all: boot + +.PHONY: boot +boot: machine + cd boot/$(CONFIG_ARCH)/$(CONFIG_CHIP); $(MAKE) + +.PHONY: machine +machine: + cd arch/$(CONFIG_ARCH)/$(CONFIG_CHIP); $(MAKE) diff --git a/atos/arch/rv64/jh7110/Makefile b/atos/arch/rv64/jh7110/Makefile new file mode 100644 index 0000000..2e9f989 --- /dev/null +++ b/atos/arch/rv64/jh7110/Makefile @@ -0,0 +1,28 @@ +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +include ../../../../mk/atos.mk + +ASMFILES = $(shell find . -name "*.S") +ASMOFILES = $(ASMFILES:.S=.S.o) +MISC_OFILES = $(shell find $(GLOBAL_ROOT)/atos -name "*.o") +CFLAGS = $(INTERNAL_CFLAGS) + +KERNEL_ELF_OUT = $(GLOBAL_ROOT)/out/atos.sys +KERNEL_BIN_OUT = $(GLOBAL_ROOT)/out/atos.bin + +.PHONY: all +all: $(KERNEL_ELF_OUT) + $(PROMPT) "OBJCOPY" $(KERNEL_BIN_OUT) + $(OBJCOPY) -O binary $(KERNEL_ELF_OUT) $(KERNEL_BIN_OUT) + +.PHONY: $(KERNEL_ELF_OUT) +$(KERNEL_ELF_OUT): $(ASMOFILES) + $(PROMPT) "LD" $(KERNEL_ELF_OUT) + $(LD) -Tdev/link.ld $(MISC_OFILES) -o $(KERNEL_ELF_OUT) + +%.S.o: %.S + $(PROMPT) "CC" $< + $(CC) -c $< $(CFLAGS) -o $@ diff --git a/atos/arch/rv64/jh7110/dev/link.ld b/atos/arch/rv64/jh7110/dev/link.ld new file mode 100644 index 0000000..c425651 --- /dev/null +++ b/atos/arch/rv64/jh7110/dev/link.ld @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2026, Apollo Telephone Laboratories. + * Provided under the BSD-3 clause. + */ + +ENTRY(MdHartEntry) + +SECTIONS { + . = 0x42200000; + + .text : { + *(.text .text.*) + } + + . += CONSTANT(MAXPAGESIZE); + + .rodata : { + *(.rodata .rodata.*) + } + + . += CONSTANT(MAXPAGESIZE); + + .data : { + *(.data .data.*) + } + + . += CONSTANT(MAXPAGESIZE); + + .bss : { + *(.bss .bss.*) + } +} diff --git a/atos/arch/rv64/jh7110/ke/head.S b/atos/arch/rv64/jh7110/ke/head.S new file mode 100644 index 0000000..bc4a5ae --- /dev/null +++ b/atos/arch/rv64/jh7110/ke/head.S @@ -0,0 +1,10 @@ +/* + * Copyright (c) 2026, Apollo Telephone Laboratories. + * Provided under the BSD-3 clause. + */ + + .text + .globl MdHartEntry +MdHartEntry: +1: wfi + j 1b diff --git a/atos/boot/rv64/jh7110/Makefile b/atos/boot/rv64/jh7110/Makefile new file mode 100644 index 0000000..122fdba --- /dev/null +++ b/atos/boot/rv64/jh7110/Makefile @@ -0,0 +1,11 @@ +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +IMG_PATH = $(GLOBAL_ROOT)/out/cirrus.img + +.PHONY: all +all: + mkfs.fat -C $(IMG_PATH) 4096 + mcopy -i $(IMG_PATH) $(GLOBAL_ROOT)/out/atos.bin :: diff --git a/build.sh b/build.sh new file mode 100755 index 0000000..b2d4f65 --- /dev/null +++ b/build.sh @@ -0,0 +1,66 @@ +#!/bin/bash +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +MAKE=make + +# +# Check if all the dependencies are installed on the host +# machine. +# +# $@: Dependencies installed on the machine +# +check_deps() { + for dep in $@ + do + printf "Checking if $dep is installed... " + which $dep &>/dev/null + if [ $? -ne 0 ] + then + echo "no" + echo "fatal: Please install '$dep'!" + exit 1 + fi + echo "yes" + done +} + +# +# Prepare the build environment +# +build_prepare() { + source dev/build.env + + check_deps \ + make \ + clang \ + rsync \ + llvm-objcopy \ + ld.lld +} + +# +# Build a directory +# +# $1: Directory to build +# $2: Subsystem name +# +build_dir() { + pushd $1 + echo "[*] Building $2..." + $MAKE + popd +} + +build_run() { + mkdir -p out + + build_dir \ + atos \ + "kernel" +} + +build_prepare +build_run diff --git a/dev/build.env b/dev/build.env new file mode 100644 index 0000000..1deb0b7 --- /dev/null +++ b/dev/build.env @@ -0,0 +1,9 @@ +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +export GLOBAL_ROOT=$PWD +export CONFIG_ARCH=rv64 +export CONFIG_CHIP=jh7110 +export CONFIG_BOOT_PROTO=machine diff --git a/mk/atos.mk b/mk/atos.mk new file mode 100644 index 0000000..fb5d98c --- /dev/null +++ b/mk/atos.mk @@ -0,0 +1,39 @@ +# +# Copyright (c) 2026, Apollo Telephone Laboratories. +# Provided under the BSD-3 clause. +# + +.SILENT: + +PROMPT = printf "%s\t\t%s\n" + +ifeq ($(CONFIG_ARCH),rv64) + CC_TARGET = riscv64-unknown-elf +else + CC_TARGET = +endif + +CC = \ + clang +LD = \ + ld.lld +OBJCOPY = \ + llvm-objcopy + +INTERNAL_CFLAGS = \ + -Wall \ + -pedantic \ + -MMD \ + -nostdlib \ + -nostdinc \ + -ffreestanding \ + -D_KERNEL \ + -D_ARCH='"$(CONFIG_ARCH)"' \ + -D_CHIP='"$(CONFIG_CHIP)"' \ + -target $(CC_TARGET) + +ifeq ($(CONFIG_ARCH),rv64) + INTERNAL_CFLAGS += \ + -mabi=lp64d \ + -mcmodel=medany +endif |