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使用cargo管理一些C文件的编译，并且移动部分汇编到arch目录 (#447)
* 使用cargo管理main.c的编译 * 使用build-scripts编译架构相关的c代码 * 删除elf.h
This commit is contained in:
LoGin
GitHub
parent
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commit
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6
.vscode/settings.json
vendored
6
.vscode/settings.json
vendored
@ -124,12 +124,9 @@
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"mm-types.h": "c",
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"vfs.h": "c",
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"current.h": "c",
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"proc-types.h": "c",
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"traceback.h": "c",
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"bitcount.h": "c",
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"limits.h": "c",
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"block.h": "c",
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"blk_types.h": "c",
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"mutex.h": "c",
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"mount.h": "c",
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"internal.h": "c",
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@ -173,7 +170,8 @@
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"cmpxchg.h": "c",
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"mman.h": "c",
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"clocksource.h": "c",
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"ata.h": "c"
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"ata.h": "c",
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"barrier": "c"
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},
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"C_Cpp.errorSquiggles": "enabled",
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"esbonio.sphinx.confDir": "",
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@ -2,7 +2,7 @@ use std::path::PathBuf;
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use cc::Build;
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use crate::utils::FileUtils;
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use crate::{constant::ARCH_DIR_X86_64, utils::FileUtils};
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use super::CFilesArch;
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@ -18,10 +18,26 @@ impl CFilesArch for X86_64CFilesArch {
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}
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fn setup_files(&self, _c: &mut Build, files: &mut Vec<PathBuf>) {
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files.push(PathBuf::from("src/arch/x86_64/driver/hpet.c"));
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files.push(arch_path("driver/hpet.c"));
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// 获取`kernel/src/arch/x86_64/driver/apic`下的所有C文件
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files.append(&mut FileUtils::list_all_files(
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&PathBuf::from("src/arch/x86_64/driver/apic"),
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&arch_path("driver/apic"),
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Some("c"),
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true,
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));
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files.append(&mut FileUtils::list_all_files(
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&arch_path("init"),
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Some("c"),
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true,
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));
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files.append(&mut FileUtils::list_all_files(
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&arch_path("asm"),
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Some("c"),
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true,
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));
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files.append(&mut FileUtils::list_all_files(
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&arch_path("interrupt"),
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Some("c"),
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true,
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));
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@ -36,3 +52,7 @@ impl CFilesArch for X86_64CFilesArch {
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c.asm_flag("-m64");
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}
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}
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fn arch_path(relative_path: &str) -> PathBuf {
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PathBuf::from(format!("{}/{}", ARCH_DIR_X86_64, relative_path))
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}
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1
build-scripts/kernel_build/src/constant/mod.rs
Normal file
1
build-scripts/kernel_build/src/constant/mod.rs
Normal file
@ -0,0 +1 @@
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pub const ARCH_DIR_X86_64: &str = "src/arch/x86_64";
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@ -4,6 +4,7 @@ extern crate cc;
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mod bindgen;
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mod cfiles;
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mod constant;
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mod kconfig;
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mod utils;
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@ -26,21 +26,16 @@ export ASFLAGS := --64
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LD_LIST := ""
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kernel_subdirs := common driver debug arch exception smp syscall ktest libs time
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kernel_subdirs := common driver debug exception smp syscall ktest libs time
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main.o: main.c
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# -fno-builtin: 不使用C语言内建函数
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# The -m64 option sets int to 32bits and long and pointer to 64 bits and generates code for AMD’s x86-64 architecture.
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$(CC) $(CFLAGS) -c main.c -o main.o
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kernel_rust:
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RUSTFLAGS="$(RUSTFLAGS_UNWIND)" cargo +nightly-2023-01-21 build --release --target ./arch/x86_64/x86_64-unknown-none.json
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all: kernel
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@echo "Linking kernel..."
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel main.o $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a -T link.lds --no-relax
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a -T link.lds --no-relax
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# 生成kallsyms
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current_dir=$(pwd)
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@ -54,7 +49,7 @@ all: kernel
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# 重新链接
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@echo "Re-Linking kernel..."
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@echo $(shell find . -name "*.o")
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel main.o $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a ./debug/kallsyms.o -T link.lds --no-relax
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$(LD) -b elf64-x86-64 -z muldefs $(LDFLAGS_UNWIND) -o kernel $(shell find . -name "*.o") ../target/x86_64-unknown-none/release/libdragonos_kernel.a ./debug/kallsyms.o -T link.lds --no-relax
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@echo "Generating kernel ELF file..."
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# 生成内核文件
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ifeq ($(UNWIND_ENABLE), yes)
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@ -71,7 +66,7 @@ $(kernel_subdirs): ECHO
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$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" kernel_root_path="$(shell pwd)"
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kernel: main.o $(kernel_subdirs) kernel_rust
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kernel: $(kernel_subdirs) kernel_rust
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@ -1,17 +0,0 @@
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CFLAGS += -I .
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ifeq ($(ARCH), __x86_64__)
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kernel_arch_subdirs:=x86_64
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endif
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all:
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@list='$(kernel_arch_subdirs)'; for subdir in $$list; do \
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echo "make all in $$subdir";\
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cd $$subdir;\
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$(MAKE) all CFLAGS="$(CFLAGS)" ;\
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cd ..;\
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done
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clean:
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echo "Done."
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@ -1,23 +0,0 @@
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CFLAGS += -I .
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kernel_arch_x86_64_subdirs:= asm
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kernel_arch_x86_64_objs:= $(shell find ./*.c)
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ECHO:
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@echo "$@"
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$(kernel_arch_x86_64_objs): ECHO
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$(CC) $(CFLAGS) -c $@ -o $@.o
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$(kernel_arch_x86_64_subdirs): ECHO
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$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)"
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all: $(kernel_arch_x86_64_objs) $(kernel_arch_x86_64_subdirs)
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clean:
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echo "Done."
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@ -1,22 +0,0 @@
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CFLAGS += -I .
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# kernel_arch_x86_64_asm_subdirs:=
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kernel_arch_x86_64_asm_objs:= $(shell find ./*.c)
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ECHO:
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@echo "$@"
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$(kernel_arch_x86_64_asm_objs): ECHO
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$(CC) $(CFLAGS) -c $@ -o $@.o
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# $(kernel_arch_x86_64_asm_subdirs): ECHO
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# $(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)"
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all: $(kernel_arch_x86_64_asm_objs)
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clean:
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echo "Done."
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@ -300,7 +300,7 @@ ENTRY(_start64)
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// 50-100M填0，共25个页表
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mov $12800, %ecx
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.fill_pt_64_2:
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mov $0, 0(%eax)
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movq $0, 0(%eax)
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add $8, %eax
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loop .fill_pt_64_2
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@ -1,16 +1,26 @@
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#pragma once
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#include <DragonOS/stdint.h>
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#include <stdbool.h>
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#include <common/stddef.h>
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// 定义类型的缩写
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typedef unsigned char uchar;
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typedef unsigned short ushort;
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typedef unsigned int uint;
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typedef unsigned long ul;
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typedef unsigned long long int ull;
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typedef long long int ll;
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#define sti() __asm__ __volatile__("sti\n\t" :: \
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: "memory") //开启外部中断
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: "memory") // 开启外部中断
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#define cli() __asm__ __volatile__("cli\n\t" :: \
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: "memory") //关闭外部中断
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: "memory") // 关闭外部中断
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#define nop() __asm__ __volatile__("nop\n\t")
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#define hlt() __asm__ __volatile__("hlt\n\t")
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#define pause() asm volatile("pause\n\t"); // 处理器等待一段时间
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//内存屏障
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// 内存屏障
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#define io_mfence() __asm__ __volatile__("mfence\n\t" :: \
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: "memory") // 在mfence指令前的读写操作必须在mfence指令后的读写操作前完成。
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#define io_sfence() __asm__ __volatile__("sfence\n\t" :: \
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@ -54,6 +64,22 @@ unsigned long *get_rsp()
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return tmp;
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}
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/**
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* @brief 验证地址空间是否为用户地址空间
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*
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* @param addr_start 地址起始值
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* @param length 地址长度
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* @return true
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* @return false
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*/
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bool verify_area(uint64_t addr_start, uint64_t length)
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{
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if ((addr_start + length) <= 0x00007fffffffffffUL) // 用户程序可用的的地址空间应<= 0x00007fffffffffffUL
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return true;
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else
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return false;
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}
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/**
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* @brief 读取rbp寄存器的值（存储了页目录的基地址）
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*
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@ -147,3 +173,247 @@ uint64_t get_rflags()
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: "=r"(tmp)::"memory");
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return tmp;
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}
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void *memset(void *dst, unsigned char C, ul size)
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{
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int d0, d1;
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unsigned long tmp = C * 0x0101010101010101UL;
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__asm__ __volatile__("cld \n\t"
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"rep \n\t"
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"stosq \n\t"
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"testb $4, %b3 \n\t"
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"je 1f \n\t"
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"stosl \n\t"
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"1:\ttestb $2, %b3 \n\t"
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"je 2f\n\t"
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"stosw \n\t"
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"2:\ttestb $1, %b3 \n\t"
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"je 3f \n\t"
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"stosb \n\t"
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"3: \n\t"
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: "=&c"(d0), "=&D"(d1)
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: "a"(tmp), "q"(size), "0"(size / 8), "1"(dst)
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: "memory");
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return dst;
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}
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void *memset_c(void *dst, uint8_t c, size_t count)
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{
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uint8_t *xs = (uint8_t *)dst;
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while (count--)
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*xs++ = c;
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return dst;
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}
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/**
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* @brief 内存拷贝函数
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*
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* @param dst 目标数组
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* @param src 源数组
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* @param Num 字节数
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* @return void*
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*/
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static void *memcpy(void *dst, const void *src, long Num)
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{
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int d0 = 0, d1 = 0, d2 = 0;
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__asm__ __volatile__("cld \n\t"
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"rep \n\t"
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"movsq \n\t"
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"testb $4,%b4 \n\t"
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"je 1f \n\t"
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"movsl \n\t"
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"1:\ttestb $2,%b4 \n\t"
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"je 2f \n\t"
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"movsw \n\t"
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"2:\ttestb $1,%b4 \n\t"
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"je 3f \n\t"
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"movsb \n\t"
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"3: \n\t"
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: "=&c"(d0), "=&D"(d1), "=&S"(d2)
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: "0"(Num / 8), "q"(Num), "1"(dst), "2"(src)
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: "memory");
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return dst;
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}
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// 从io口读入8个bit
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unsigned char io_in8(unsigned short port)
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{
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unsigned char ret = 0;
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__asm__ __volatile__("inb %%dx, %0 \n\t"
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"mfence \n\t"
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: "=a"(ret)
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: "d"(port)
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: "memory");
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return ret;
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}
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// 从io口读入32个bit
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unsigned int io_in32(unsigned short port)
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{
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unsigned int ret = 0;
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__asm__ __volatile__("inl %%dx, %0 \n\t"
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"mfence \n\t"
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: "=a"(ret)
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: "d"(port)
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: "memory");
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return ret;
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}
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// 输出8个bit到输出端口
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void io_out8(unsigned short port, unsigned char value)
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{
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__asm__ __volatile__("outb %0, %%dx \n\t"
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"mfence \n\t"
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:
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: "a"(value), "d"(port)
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: "memory");
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}
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// 输出32个bit到输出端口
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void io_out32(unsigned short port, unsigned int value)
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{
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__asm__ __volatile__("outl %0, %%dx \n\t"
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"mfence \n\t"
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:
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: "a"(value), "d"(port)
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: "memory");
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}
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|
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/**
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* @brief 从端口读入n个word到buffer
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*
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*/
|
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#define io_insw(port, buffer, nr) \
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__asm__ __volatile__("cld;rep;insw;mfence;" ::"d"(port), "D"(buffer), "c"(nr) \
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: "memory")
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/**
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* @brief 从输出buffer中的n个word到端口
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*
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*/
|
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#define io_outsw(port, buffer, nr) \
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__asm__ __volatile__("cld;rep;outsw;mfence;" ::"d"(port), "S"(buffer), "c"(nr) \
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: "memory")
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|
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/**
|
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* @brief 从用户空间搬运数据到内核空间
|
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*
|
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* @param dst 目的地址
|
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* @param src 源地址
|
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* @param size 搬运的大小
|
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* @return uint64_t
|
||||
*/
|
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static inline uint64_t copy_from_user(void *dst, void *src, uint64_t size)
|
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{
|
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uint64_t tmp0, tmp1;
|
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if (!verify_area((uint64_t)src, size))
|
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return 0;
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|
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/**
|
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* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
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||||
*
|
||||
*/
|
||||
asm volatile("rep \n\t"
|
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"movsq \n\t"
|
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"movq %3, %0 \n\t"
|
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"rep \n\t"
|
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"movsb \n\t"
|
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: "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
|
||||
: "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
|
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: "memory");
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||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从内核空间搬运数据到用户空间
|
||||
*
|
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* @param dst 目的地址
|
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* @param src 源地址
|
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* @param size 搬运的大小
|
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* @return uint64_t
|
||||
*/
|
||||
static inline uint64_t copy_to_user(void *dst, void *src, uint64_t size)
|
||||
{
|
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if (verify_area((uint64_t)src, size))
|
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return 0;
|
||||
|
||||
/**
|
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* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
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*
|
||||
*/
|
||||
// todo:编译有bug
|
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// asm volatile("rep \n\t"
|
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// "movsq \n\t"
|
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// "movq %3, %0 \n\t"
|
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// "rep \n\t"
|
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// "movsb \n\t"
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// : "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
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// : "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
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// : "memory");
|
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memcpy(dst, src, size);
|
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|
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return size;
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||||
}
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
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static __always_inline void __write8b(uint64_t vaddr, uint64_t value)
|
||||
{
|
||||
asm volatile("movq %%rdx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
||||
static __always_inline void __write4b(uint64_t vaddr, uint32_t value)
|
||||
{
|
||||
asm volatile("movl %%edx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint64_t __read8b(uint64_t vaddr)
|
||||
{
|
||||
uint64_t retval;
|
||||
asm volatile("movq 0(%%rax), %0"
|
||||
: "=r"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint32_t __read4b(uint64_t vaddr)
|
||||
{
|
||||
uint32_t retval;
|
||||
asm volatile("movl 0(%%rax), %0"
|
||||
: "=d"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
219
kernel/src/arch/x86_64/init/main.c
Normal file
219
kernel/src/arch/x86_64/init/main.c
Normal file
@ -0,0 +1,219 @@
|
||||
//
|
||||
// Created by longjin on 2022/1/20.
|
||||
//
|
||||
|
||||
#include "common/glib.h"
|
||||
#include "common/kprint.h"
|
||||
#include "common/printk.h"
|
||||
#include "exception/gate.h"
|
||||
#include "exception/irq.h"
|
||||
#include "exception/trap.h"
|
||||
#include "mm/mm.h"
|
||||
#include "mm/slab.h"
|
||||
#include "process/process.h"
|
||||
#include "smp/smp.h"
|
||||
#include "syscall/syscall.h"
|
||||
#include <exception/softirq.h>
|
||||
#include <libs/lib_ui/screen_manager.h>
|
||||
#include <libs/lib_ui/textui.h>
|
||||
#include <sched/sched.h>
|
||||
#include <smp/ipi.h>
|
||||
|
||||
#include <filesystem/vfs/VFS.h>
|
||||
|
||||
#include "driver/acpi/acpi.h"
|
||||
#include "driver/disk/ata.h"
|
||||
#include "driver/keyboard/ps2_keyboard.h"
|
||||
#include "driver/mouse/ps2_mouse.h"
|
||||
#include "driver/multiboot2/multiboot2.h"
|
||||
#include <time/timer.h>
|
||||
|
||||
#include <arch/x86_64/driver/apic/apic_timer.h>
|
||||
#include <virt/kvm/kvm.h>
|
||||
#include <debug/bug.h>
|
||||
|
||||
extern int rs_driver_init();
|
||||
extern void rs_softirq_init();
|
||||
extern void rs_mm_init();
|
||||
extern void rs_kthread_init();
|
||||
extern void rs_init_intertrait();
|
||||
extern void rs_init_before_mem_init();
|
||||
extern int rs_setup_arch();
|
||||
extern void rs_futex_init();
|
||||
extern int rs_hpet_init();
|
||||
extern int rs_hpet_enable();
|
||||
extern int rs_tsc_init();
|
||||
extern void rs_clocksource_boot_finish();
|
||||
extern void rs_timekeeping_init();
|
||||
extern void rs_process_init();
|
||||
extern void rs_textui_init();
|
||||
extern void rs_pci_init();
|
||||
|
||||
ul bsp_idt_size, bsp_gdt_size;
|
||||
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O0")
|
||||
struct gdtr gdtp;
|
||||
struct idtr idtp;
|
||||
ul _stack_start;
|
||||
void reload_gdt()
|
||||
{
|
||||
|
||||
gdtp.size = bsp_gdt_size - 1;
|
||||
gdtp.gdt_vaddr = (ul)phys_2_virt((ul)&GDT_Table);
|
||||
|
||||
asm volatile("lgdt (%0) \n\t" ::"r"(&gdtp) : "memory");
|
||||
}
|
||||
|
||||
void reload_idt()
|
||||
{
|
||||
|
||||
idtp.size = bsp_idt_size - 1;
|
||||
idtp.idt_vaddr = (ul)phys_2_virt((ul)&IDT_Table);
|
||||
// kdebug("gdtvaddr=%#018lx", p.gdt_vaddr);
|
||||
// kdebug("gdt size=%d", p.size);
|
||||
|
||||
asm volatile("lidt (%0) \n\t" ::"r"(&idtp) : "memory");
|
||||
}
|
||||
|
||||
// 初始化系统各模块
|
||||
void system_initialize()
|
||||
{
|
||||
rs_init_before_mem_init();
|
||||
|
||||
_stack_start =
|
||||
head_stack_start; // 保存init
|
||||
// proc的栈基地址（由于之后取消了地址重映射，因此必须在这里重新保存）
|
||||
kdebug("_stack_start=%#018lx", _stack_start);
|
||||
|
||||
set_current_core_tss(_stack_start, 0);
|
||||
rs_load_current_core_tss();
|
||||
|
||||
cpu_core_info[0].stack_start = _stack_start;
|
||||
|
||||
// 初始化中断描述符表
|
||||
sys_vector_init();
|
||||
// 初始化内存管理单元
|
||||
// mm_init();
|
||||
rs_mm_init();
|
||||
// 内存管理单元初始化完毕后，需要立即重新初始化显示驱动。
|
||||
// 原因是，系统启动初期，framebuffer被映射到48M地址处，
|
||||
// mm初始化完毕后，若不重新初始化显示驱动，将会导致错误的数据写入内存，从而造成其他模块崩溃
|
||||
// 对显示模块进行低级初始化，不启用double buffer
|
||||
|
||||
io_mfence();
|
||||
scm_reinit();
|
||||
rs_textui_init();
|
||||
|
||||
rs_init_intertrait();
|
||||
// kinfo("vaddr:%#018lx", video_frame_buffer_info.vaddr);
|
||||
io_mfence();
|
||||
vfs_init();
|
||||
|
||||
rs_driver_init();
|
||||
|
||||
acpi_init();
|
||||
|
||||
rs_setup_arch();
|
||||
io_mfence();
|
||||
irq_init();
|
||||
rs_process_init();
|
||||
sched_init();
|
||||
|
||||
sti();
|
||||
io_mfence();
|
||||
|
||||
rs_softirq_init();
|
||||
|
||||
syscall_init();
|
||||
io_mfence();
|
||||
|
||||
rs_timekeeping_init();
|
||||
io_mfence();
|
||||
|
||||
rs_timer_init();
|
||||
io_mfence();
|
||||
|
||||
rs_jiffies_init();
|
||||
io_mfence();
|
||||
|
||||
rs_kthread_init();
|
||||
io_mfence();
|
||||
|
||||
io_mfence();
|
||||
rs_clocksource_boot_finish();
|
||||
|
||||
io_mfence();
|
||||
|
||||
cpu_init();
|
||||
|
||||
ps2_keyboard_init();
|
||||
io_mfence();
|
||||
|
||||
rs_pci_init();
|
||||
|
||||
// 这里必须加内存屏障，否则会出错
|
||||
io_mfence();
|
||||
smp_init();
|
||||
|
||||
io_mfence();
|
||||
rs_futex_init();
|
||||
cli();
|
||||
rs_hpet_init();
|
||||
rs_hpet_enable();
|
||||
rs_tsc_init();
|
||||
|
||||
io_mfence();
|
||||
|
||||
kvm_init();
|
||||
|
||||
io_mfence();
|
||||
// 系统初始化到此结束，剩下的初始化功能应当放在初始内核线程中执行
|
||||
|
||||
apic_timer_init();
|
||||
// while(1);
|
||||
io_mfence();
|
||||
sti();
|
||||
while (1)
|
||||
;
|
||||
}
|
||||
|
||||
// 操作系统内核从这里开始执行
|
||||
void Start_Kernel(void)
|
||||
{
|
||||
|
||||
// 获取multiboot2的信息
|
||||
uint64_t mb2_info, mb2_magic;
|
||||
__asm__ __volatile__("movq %%r15, %0 \n\t"
|
||||
"movq %%r14, %1 \n\t"
|
||||
"movq %%r13, %2 \n\t"
|
||||
"movq %%r12, %3 \n\t"
|
||||
: "=r"(mb2_info), "=r"(mb2_magic), "=r"(bsp_gdt_size),
|
||||
"=r"(bsp_idt_size)::"memory");
|
||||
reload_gdt();
|
||||
reload_idt();
|
||||
|
||||
mb2_info &= 0xffffffff;
|
||||
mb2_magic &= 0xffffffff;
|
||||
multiboot2_init(mb2_info, mb2_magic);
|
||||
io_mfence();
|
||||
system_initialize();
|
||||
io_mfence();
|
||||
|
||||
// idle
|
||||
while (1)
|
||||
{
|
||||
// 如果调用的时候，启用了中断，则hlt。否则认为是bug
|
||||
if (get_rflags() & 0x200)
|
||||
{
|
||||
// kdebug("hlt");
|
||||
hlt();
|
||||
}
|
||||
else
|
||||
{
|
||||
BUG_ON(1);
|
||||
pause();
|
||||
}
|
||||
}
|
||||
}
|
||||
#pragma GCC pop_options
|
||||
@ -1,84 +0,0 @@
|
||||
#pragma once
|
||||
|
||||
#include <DragonOS/stdint.h>
|
||||
#include <common/glib.h>
|
||||
|
||||
#define BLK_TYPE_AHCI 0
|
||||
|
||||
#define DISK_NAME_LEN 32 // 磁盘名称的最大长度
|
||||
|
||||
struct blk_gendisk;
|
||||
|
||||
struct block_device_operation
|
||||
{
|
||||
long (*open)();
|
||||
long (*close)();
|
||||
long (*ioctl)(long cmd, long arg);
|
||||
|
||||
/**
|
||||
* @brief 块设备驱动程序的传输函数
|
||||
*
|
||||
* @param gd 磁盘设备结构体
|
||||
* @param cmd 控制命令
|
||||
* @param base_addr 48位LBA地址
|
||||
* @param count total sectors to read
|
||||
* @param buf 缓冲区线性地址
|
||||
* @return long
|
||||
*/
|
||||
long (*transfer)(struct blk_gendisk *gd, long cmd, uint64_t base_addr, uint64_t count, uint64_t buf);
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 块设备请求队列内的packet
|
||||
*
|
||||
*/
|
||||
struct block_device_request_packet
|
||||
{
|
||||
uchar cmd;
|
||||
uint64_t LBA_start;
|
||||
uint32_t count;
|
||||
uint64_t buffer_vaddr;
|
||||
uint8_t device_type; // 0: ahci
|
||||
void (*end_handler)(ul num, ul arg);
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 块设备的请求队列
|
||||
*
|
||||
*/
|
||||
struct block_device_request_queue
|
||||
{
|
||||
struct block_device_request_packet *in_service; // 正在请求的结点
|
||||
ul request_count;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 块设备结构体（对应磁盘的一个分区）
|
||||
*
|
||||
*/
|
||||
struct block_device
|
||||
{
|
||||
sector_t bd_start_sector; // 该分区的起始扇区
|
||||
uint64_t bd_start_LBA; // 起始LBA号
|
||||
sector_t bd_sectors_num; // 该分区的扇区数
|
||||
struct vfs_superblock_t *bd_superblock; // 执行超级块的指针
|
||||
struct blk_gendisk *bd_disk; // 当前分区所属的磁盘
|
||||
uint16_t bd_partno; // 在磁盘上的分区号
|
||||
};
|
||||
|
||||
// 定义blk_gendisk中的标志位
|
||||
#define BLK_GF_AHCI (1 << 0)
|
||||
|
||||
/**
|
||||
* @brief 磁盘设备结构体
|
||||
*
|
||||
*/
|
||||
struct blk_gendisk
|
||||
{
|
||||
char disk_name[DISK_NAME_LEN]; // 磁盘驱动器名称
|
||||
uint16_t part_cnt; // 磁盘分区计数
|
||||
uint16_t flags;
|
||||
struct block_device *partition; // 磁盘分区数组
|
||||
const struct block_device_operation *fops; // 磁盘操作
|
||||
void *private_data;
|
||||
};
|
||||
@ -1,10 +0,0 @@
|
||||
#pragma once
|
||||
#include "blk_types.h"
|
||||
|
||||
/**
|
||||
* @brief 将磁盘注册到块设备框架中
|
||||
*
|
||||
* @param gendisk 磁盘结构体
|
||||
* @return int 错误码
|
||||
*/
|
||||
int blk_register_gendisk(struct blk_gendisk * gendisk);
|
||||
@ -1,360 +0,0 @@
|
||||
#pragma once
|
||||
#include <common/glib.h>
|
||||
|
||||
// --> begin ==============EHDR=====================
|
||||
// Reference: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-43405.html#scrolltoc
|
||||
|
||||
// ====== ELF32 Header中的数据类型定义 ====
|
||||
typedef uint32_t Elf32_Addr;
|
||||
typedef uint16_t Elf32_Half;
|
||||
typedef uint32_t Elf32_Off;
|
||||
typedef uint32_t Elf32_SWord;
|
||||
typedef uint32_t Elf32_Word;
|
||||
|
||||
// ====== ELF64 Header中的数据类型定义 ====
|
||||
typedef uint64_t Elf64_Addr;
|
||||
typedef uint16_t Elf64_Half;
|
||||
typedef uint64_t Elf64_Off;
|
||||
typedef uint32_t Elf64_Sword;
|
||||
typedef uint32_t Elf64_Word;
|
||||
typedef uint64_t Elf64_Xword;
|
||||
typedef uint64_t Elf64_Sxword;
|
||||
|
||||
// ====== ELF Identification Index ======
|
||||
// Purpose: File identification
|
||||
#define EI_MAG0 0
|
||||
#define EI_MAG1 1
|
||||
#define EI_MAG2 2
|
||||
#define EI_MAG3 3
|
||||
// Purpose: File class
|
||||
#define EI_CLASS 4
|
||||
// Purpose: Data encoding
|
||||
#define EI_DATA 5
|
||||
// Purpose: File version
|
||||
#define EI_VERSION 6 // e_ident[EI_VERSION]指定了ELF header的版本号 当前这个值必须是EV_CURRENT
|
||||
|
||||
// Purpose: Operating system/ABI identification
|
||||
#define EI_OSABI 7 // e_ident[EI_OSABI]指定了操作系统以及对象所对应的ABI
|
||||
|
||||
// Purpose: ABI version
|
||||
#define EI_ABIVERSION 8 // e_ident[EI_ABIVERSION] 指定了对象所对应的ABI版本.
|
||||
|
||||
// Purpose: Start of padding bytes
|
||||
#define EI_PAD 9 // 这个值标志了e_ident中未使用字节的的起始下标
|
||||
// Purpose: Size of e_ident[]
|
||||
#define EI_NIDENT 16
|
||||
|
||||
// EI_MAG0 - EI_MAG3 这是一个4byte的 magic number
|
||||
#define ELFMAG0 0x7f
|
||||
#define ELFMAG1 'E'
|
||||
#define ELFMAG2 'L'
|
||||
#define ELFMAG3 'F'
|
||||
|
||||
// EI_CLASS e_ident[EI_CLASS]指明了文件的类型或capacity
|
||||
#define ELFCLASSNONE 0 // Invalid class
|
||||
#define ELFCLASS32 1 // 32–bit objects
|
||||
#define ELFCLASS64 2 // 64–bit objects
|
||||
|
||||
// EI_DATA e_ident[EI_DATA]指明了与处理器相关的数据的编码方式
|
||||
#define ELFDATANONE 0
|
||||
#define ELFDATA2LSB 1 // 小端对齐
|
||||
#define ELFDATA2MSB 2 // 大端对齐
|
||||
|
||||
// ELF e_type的类型定义
|
||||
#define ET_NONE 0 // No file type
|
||||
#define ET_REL 1 // Relocatable file
|
||||
#define ET_EXEC 2 // Executable file
|
||||
#define ET_DYN 3 // Shared object file
|
||||
#define ET_CORE 4 // Core file
|
||||
#define ET_LOPROC 0xff00 // Processor-specific
|
||||
#define ET_HIPROC 0xffff // Processor-specific
|
||||
|
||||
// e_machine的类型定义
|
||||
#define EM_NONE 0 // No machine
|
||||
#define EM_SPARC 2 // SPARC
|
||||
#define EM_386 3 // Intel 80386
|
||||
#define EM_SPARC32PLUS 18 // Sun SPARC 32+
|
||||
#define EM_SPARCV9 43 // SPARC V9
|
||||
#define EM_AMD64 62 // AMD 64
|
||||
|
||||
// e_version的类型定义
|
||||
#define EV_NONE 0 // Invalid Version
|
||||
// EV_CURRENT: Value>=1 means current version
|
||||
|
||||
// e_flags 定义
|
||||
// e_flags for SPARC
|
||||
#define EF_SPARC_EXT_MASK 0xffff00 // Vendor Extension mask
|
||||
#define EF_SPARC_32PLUS 0x000100 // Generic V8+ features
|
||||
#define EF_SPARC_SUN_US1 0x000200 // Sun UltraSPARC 1 Extensions
|
||||
#define EF_SPARC_HAL_R1 0x000400 // HAL R1 Extensions
|
||||
#define EF_SPARC_SUN_US3 0x000800 // Sun UltraSPARC 3 Extensions
|
||||
#define EF_SPARCV9_MM 0x3 // Mask for Memory Model
|
||||
#define EF_SPARCV9_TSO 0x0 // Total Store Ordering
|
||||
#define EF_SPARCV9_PSO 0x1 // Partial Store Ordering
|
||||
#define EF_SPARCV9_RMO 0x2 // Relaxed Memory Ordering
|
||||
|
||||
#define PN_XNUM 0xffff
|
||||
|
||||
typedef struct
|
||||
{
|
||||
unsigned char e_ident[EI_NIDENT];
|
||||
Elf32_Half e_type;
|
||||
Elf32_Half e_machine;
|
||||
Elf32_Word e_version;
|
||||
Elf32_Addr e_entry;
|
||||
Elf32_Off e_phoff;
|
||||
Elf32_Off e_shoff;
|
||||
Elf32_Word e_flags;
|
||||
Elf32_Half e_ehsize;
|
||||
Elf32_Half e_phentsize;
|
||||
Elf32_Half e_phnum;
|
||||
Elf32_Half e_shentsize;
|
||||
Elf32_Half e_shnum;
|
||||
Elf32_Half e_shstrndx;
|
||||
} Elf32_Ehdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
unsigned char e_ident[EI_NIDENT]; // 标志字节，这些字节与机器架构类型无关。目的是为了告诉我们如何解析这个文件的内容
|
||||
Elf64_Half e_type; // 文件类型标志符
|
||||
Elf64_Half e_machine; // 该文件依赖的处理器架构类型
|
||||
Elf64_Word e_version; // 对象文件的版本
|
||||
Elf64_Addr e_entry; // 进程的虚拟地址入点，使用字节偏移量表示。如果没有entry point，则该值为0
|
||||
Elf64_Off e_phoff; // The program header table's file offset in bytes. 若没有，则为0
|
||||
Elf64_Off e_shoff; // The section header table's file offset in bytes. 若没有，则为0
|
||||
Elf64_Word e_flags; // 与处理器相关联的flags。格式为： EF_machine_flag 如果是x86架构，那么该值为0
|
||||
Elf64_Half e_ehsize; // ELF Header的大小（单位：字节）
|
||||
Elf64_Half e_phentsize; // 程序的program header table中的一个entry的大小（所有的entry大小相同）
|
||||
Elf64_Half e_phnum; // program header table的entry数量
|
||||
// e_phentsize*e_phnum=program header table的大小
|
||||
// 如果没有program header table，该值为0
|
||||
// 如果entry num>=PN_XNUM(0xffff), 那么该值为0xffff，且真实的pht的entry数量存储在section header的sh_info中（index=0）
|
||||
// 其他情况下，第一个section header entry的sh_info的值为0
|
||||
|
||||
Elf64_Half e_shentsize; // 每个section header的大小（字节
|
||||
// 每个section header是section header table的一个entry
|
||||
|
||||
Elf64_Half e_shnum; // section header table的entry数量
|
||||
// e_shentsize*e_shnum=section header table的大小
|
||||
// 如果没有section header table，那么该值为0
|
||||
// 如果section的数量>=SHN_LORESERVE(0xff00)，那么该值为0，且真实的section数量存储在
|
||||
// section header at index 0的sh_size变量中，否则第一个sh_size为0
|
||||
|
||||
Elf64_Half e_shstrndx; // 与section name string表相关联的section header table的entry的索引下标
|
||||
// 如果没有name string table,那么该值等于SHN_UNDEF
|
||||
// 如果对应的index>=SHN_LORESERVE(0xff00)， 那么该变量值为SHN_XINDEX(0xffff)
|
||||
// 且真正的section name string table的index被存放在section header的index=0处的sh_link变量中
|
||||
// 否则初始section header entry的sh_link变量为0
|
||||
} Elf64_Ehdr;
|
||||
|
||||
// --> end ==============EHDR=====================
|
||||
|
||||
// --> begin ==============SHDR=====================
|
||||
|
||||
// reference: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-94076.html#scrolltoc
|
||||
|
||||
// ===== ELF Special Section Indexes =====
|
||||
#define SHN_UNDEF 0 // An undefined, missing, irrelevant, or otherwise meaningless section reference.
|
||||
#define SHN_LORESERVE 0xff00 // The lower boundary of the range of reserved indexes.
|
||||
// The system reserves indexes between SHN_LORESERVE and SHN_HIRESERVE, inclusive.
|
||||
#define SHN_LOPROC 0xff00 // SHN_LOPROC - SHN_HIPROC 这个范围以内的数据为处理器特定的语义所保留
|
||||
#define SHN_BEFORE 0xff00 // SHN_BEFORE, SHN_AFTER 与SHF_LINK_ORDER及SHF_ORDERED section flags一起，提供初始和终止section的
|
||||
#define SHN_AFTER 0xff01
|
||||
#define SHN_AMD64_LCOMMON 0xff02 // x64 specific common block label. This label is similar to SHN_COMMON, but provides for identifying a large common block.
|
||||
#define SHN_HIPROC 0xff1f
|
||||
#define SHN_LOOS 0xff20 // SHN_LOOS - SHN_HIOS 这个范围你的数为操作系统特定的语义所保留
|
||||
#define SHN_LOSUNW 0xff3f // SHN_LOSUNW - SHN_HISUNW Values in this inclusive range are reserved for Sun-specific semantics.
|
||||
#define SHN_SUNW_IGNORE 0xff3f // This section index provides a temporary symbol definition within relocatable objects. Reserved for internal use by dtrace(1M).
|
||||
#define SHN_HISUNW 0xff3f
|
||||
#define SHN_HIOS 0xff3f
|
||||
#define SHN_ABS 0xfff1 // 对应的引用的绝对值。 举个例子，symbols defined relative to section number SHN_ABS have absolute values and are not affected by relocation.
|
||||
#define SHN_COMMON 0xfff2 // Symbols defined relative to this section are common symbols
|
||||
#define SHN_XINDEX 0xffff
|
||||
#define SHN_HIRESERVE 0xffff // The upper boundary of the range of reserved indexes.
|
||||
/*
|
||||
Note -
|
||||
Although index 0 is reserved as the undefined value,
|
||||
the section header table contains an entry for index 0.
|
||||
That is, if the e_shnum member of the ELF header indicates
|
||||
a file has 6 entries in the section header table, the sections
|
||||
have the indexes 0 through 5. The contents of the initial entry
|
||||
are specified later in this section.
|
||||
*/
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word sh_name;
|
||||
Elf32_Word sh_type;
|
||||
Elf32_Word sh_flags;
|
||||
Elf32_Addr sh_addr;
|
||||
Elf32_Off sh_offset;
|
||||
Elf32_Word sh_size;
|
||||
Elf32_Word sh_link;
|
||||
Elf32_Word sh_info;
|
||||
Elf32_Word sh_addralign;
|
||||
Elf32_Word sh_entsize;
|
||||
} Elf32_Shdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word sh_name; // 段名
|
||||
Elf64_Word sh_type; // 段的类型（按照内容和语义来分类）
|
||||
Elf64_Xword sh_flags;
|
||||
Elf64_Addr sh_addr; // 该section在进程的内存空间中的基地址。如果该段不需要出现在内存中，该值为0
|
||||
Elf64_Off sh_offset; // The byte offset from the beginning of the file to the first byte in the section
|
||||
// 对于一个 SHT_NOBITS section，这个变量指的是概念上的偏移量。因为这种段并不是真正存在于文件中
|
||||
Elf64_Xword sh_size; // The section's size in bytes(如果是SHT_NOBITS类型的section，section不会在文件中真正占用sh_size的空间)
|
||||
Elf64_Word sh_link; // A section header table index link, whose interpretation depends on the section type.
|
||||
Elf64_Word sh_info; // 依赖于section type来解析的额外的信息。如果sh_flags有SHF_INFO_LINK属性，那么这个变量代表一个section header table index.
|
||||
Elf64_Xword sh_addralign; // 地址按照多少bytes对齐。只允许使用2的n次幂的值。如果值为0或1，则意味着地址没有对齐要求。
|
||||
Elf64_Xword sh_entsize; // 如果某个段拥有指定size的entry，则在这里指定，否则为0
|
||||
} Elf64_Shdr;
|
||||
|
||||
// ELF Section Types, sh_type
|
||||
#define SHT_NULL 0
|
||||
#define SHT_PROGBITS 1
|
||||
#define SHT_SYMTAB 2 // Identifies a symbol table
|
||||
#define SHT_STRTAB 3 // Identifies a string table.
|
||||
#define SHT_RELA 4
|
||||
#define SHT_HASH 5
|
||||
#define SHT_DYNAMIC 6
|
||||
#define SHT_NOTE 7
|
||||
#define SHT_NOBITS 8
|
||||
#define SHT_REL 9
|
||||
#define SHT_SHLIB 10
|
||||
#define SHT_DYNSYM 11 // Identifies a symbol table
|
||||
#define SHT_INIT_ARRAY 14
|
||||
#define SHT_FINI_ARRAY 15
|
||||
#define SHT_PREINIT_ARRAY 16
|
||||
#define SHT_GROUP 17
|
||||
#define SHT_SYMTAB_SHNDX 18
|
||||
#define SHT_LOOS 0x60000000
|
||||
#define SHT_LOSUNW 0x6fffffef
|
||||
#define SHT_SUNW_capchain 0x6fffffef
|
||||
#define SHT_SUNW_capinfo 0x6ffffff0
|
||||
#define SHT_SUNW_symsort 0x6ffffff1
|
||||
#define SHT_SUNW_tlssort 0x6ffffff2
|
||||
#define SHT_SUNW_LDYNSYM 0x6ffffff3 // Identifies a symbol table
|
||||
#define SHT_SUNW_dof 0x6ffffff4
|
||||
#define SHT_SUNW_cap 0x6ffffff5
|
||||
#define SHT_SUNW_SIGNATURE 0x6ffffff6
|
||||
#define SHT_SUNW_ANNOTATE 0x6ffffff7
|
||||
#define SHT_SUNW_DEBUGSTR 0x6ffffff8
|
||||
#define SHT_SUNW_DEBUG 0x6ffffff9
|
||||
#define SHT_SUNW_move 0x6ffffffa
|
||||
#define SHT_SUNW_COMDAT 0x6ffffffb
|
||||
#define SHT_SUNW_syminfo 0x6ffffffc
|
||||
#define SHT_SUNW_verdef 0x6ffffffd
|
||||
#define SHT_SUNW_verneed 0x6ffffffe
|
||||
#define SHT_SUNW_versym 0x6fffffff
|
||||
#define SHT_HISUNW 0x6fffffff
|
||||
#define SHT_HIOS 0x6fffffff
|
||||
#define SHT_LOPROC 0x70000000
|
||||
#define SHT_SPARC_GOTDATA 0x70000000
|
||||
#define SHT_AMD64_UNWIND 0x70000001
|
||||
#define SHT_HIPROC 0x7fffffff
|
||||
#define SHT_LOUSER 0x80000000
|
||||
#define SHT_HIUSER 0xffffffff
|
||||
|
||||
// ELF Section Attribute Flags
|
||||
#define SHF_WRITE 0x1 // Identifies a section that should be writable during process execution
|
||||
#define SHF_ALLOC 0x2 // Identifies a section that occupies memory during process execution
|
||||
#define SHF_EXECINSTR 0x4 // contains executable machine instructions
|
||||
#define SHF_MERGE 0x10
|
||||
#define SHF_STRINGS 0x20
|
||||
#define SHF_INFO_LINK 0x40 // This section headers sh_info field holds a section header table index
|
||||
#define SHF_LINK_ORDER 0x80 // This section adds special ordering requirements to the link-editor
|
||||
#define SHF_OS_NONCONFORMING 0x100
|
||||
#define SHF_GROUP 0x200
|
||||
#define SHF_TLS 0x400
|
||||
#define SHF_MASKOS 0x0ff00000
|
||||
#define SHF_AMD64_LARGE 0x10000000 // identifies a section that can hold more than 2 Gbyte
|
||||
#define SHF_ORDERED 0x40000000
|
||||
#define SHF_EXCLUDE 0x80000000
|
||||
#define SHF_MASKPROC 0xf0000000
|
||||
|
||||
// --> end ==============SHDR=====================
|
||||
|
||||
// --> begin ========== symbol table section ======
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word st_name;
|
||||
Elf32_Addr st_value;
|
||||
Elf32_Word st_size;
|
||||
unsigned char st_info;
|
||||
unsigned char st_other;
|
||||
Elf32_Half st_shndx;
|
||||
} Elf32_Sym;
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word st_name;
|
||||
unsigned char st_info;
|
||||
unsigned char st_other;
|
||||
Elf64_Half st_shndx;
|
||||
Elf64_Addr st_value;
|
||||
Elf64_Xword st_size;
|
||||
} Elf64_Sym;
|
||||
|
||||
// --> end ========== symbol table section ======
|
||||
|
||||
// --> begin ========== program header =========
|
||||
// Ref: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-83432.html#scrolltoc
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word p_type;
|
||||
Elf32_Off p_offset;
|
||||
Elf32_Addr p_vaddr;
|
||||
Elf32_Addr p_paddr;
|
||||
Elf32_Word p_filesz;
|
||||
Elf32_Word p_memsz;
|
||||
Elf32_Word p_flags;
|
||||
Elf32_Word p_align;
|
||||
} Elf32_Phdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word p_type;
|
||||
Elf64_Word p_flags;
|
||||
Elf64_Off p_offset;
|
||||
Elf64_Addr p_vaddr;
|
||||
Elf64_Addr p_paddr;
|
||||
Elf64_Xword p_filesz;
|
||||
Elf64_Xword p_memsz;
|
||||
Elf64_Xword p_align;
|
||||
} Elf64_Phdr;
|
||||
|
||||
// ELF segment types
|
||||
#define PT_NULL 0
|
||||
#define PT_LOAD 1 // Specifies a loadable segment
|
||||
#define PT_DYNAMIC 2 // Specifies dynamic linking information.
|
||||
#define PT_INTERP 3 // Specifies the location and size of a null-terminated path name to invoke as an interpreter
|
||||
#define PT_NOTE 4 // Specifies the location and size of auxiliary information
|
||||
#define PT_SHLIB 5
|
||||
#define PT_PHDR 6 // Specifies the location and size of the program header table
|
||||
#define PT_TLS 7 // Specifies a thread-local storage template
|
||||
/*
|
||||
PT_LOOS - PT_HIOS
|
||||
Values in this inclusive range are reserved for OS-specific semantics.
|
||||
*/
|
||||
#define PT_LOOS 0x60000000
|
||||
#define PT_SUNW_UNWIND 0x6464e550
|
||||
#define PT_SUNW_EH_FRAME 0x6474e550
|
||||
#define PT_LOSUNW 0x6ffffffa
|
||||
#define PT_SUNWBSS 0x6ffffffa
|
||||
#define PT_SUNWSTACK 0x6ffffffb
|
||||
#define PT_SUNWDTRACE 0x6ffffffc
|
||||
#define PT_SUNWCAP 0x6ffffffd
|
||||
#define PT_HISUNW 0x6fffffff
|
||||
#define PT_HIOS 0x6fffffff
|
||||
#define PT_LOPROC 0x70000000
|
||||
#define PT_HIPROC 0x7fffffff
|
||||
|
||||
// ELF Segment Flags
|
||||
#define PF_X 0x1 // Execute
|
||||
#define PF_W 0x2 // Write
|
||||
#define PF_R 0x4 // Read
|
||||
#define PF_MASKPROC 0xf0000000 // Unspecified
|
||||
|
||||
|
||||
// --> end ========== program header =========
|
||||
@ -11,7 +11,6 @@
|
||||
#include <common/stddef.h>
|
||||
#include <arch/arch.h>
|
||||
#include <common/compiler.h>
|
||||
#include <common/list.h>
|
||||
|
||||
#include <asm/asm.h>
|
||||
|
||||
@ -29,13 +28,7 @@
|
||||
(type *)((unsigned long)p - (unsigned long)&(((type *)0)->member)); \
|
||||
})
|
||||
|
||||
// 定义类型的缩写
|
||||
typedef unsigned char uchar;
|
||||
typedef unsigned short ushort;
|
||||
typedef unsigned int uint;
|
||||
typedef unsigned long ul;
|
||||
typedef unsigned long long int ull;
|
||||
typedef long long int ll;
|
||||
|
||||
|
||||
#define ABS(x) ((x) > 0 ? (x) : -(x)) // 绝对值
|
||||
// 最大最小值
|
||||
@ -63,272 +56,6 @@ static __always_inline ul ALIGN(const ul addr, const ul _align)
|
||||
return (ul)((addr + _align - 1) & (~(_align - 1)));
|
||||
}
|
||||
|
||||
void *memset(void *dst, unsigned char C, ul size)
|
||||
{
|
||||
|
||||
int d0, d1;
|
||||
unsigned long tmp = C * 0x0101010101010101UL;
|
||||
__asm__ __volatile__("cld \n\t"
|
||||
"rep \n\t"
|
||||
"stosq \n\t"
|
||||
"testb $4, %b3 \n\t"
|
||||
"je 1f \n\t"
|
||||
"stosl \n\t"
|
||||
"1:\ttestb $2, %b3 \n\t"
|
||||
"je 2f\n\t"
|
||||
"stosw \n\t"
|
||||
"2:\ttestb $1, %b3 \n\t"
|
||||
"je 3f \n\t"
|
||||
"stosb \n\t"
|
||||
"3: \n\t"
|
||||
: "=&c"(d0), "=&D"(d1)
|
||||
: "a"(tmp), "q"(size), "0"(size / 8), "1"(dst)
|
||||
: "memory");
|
||||
return dst;
|
||||
}
|
||||
|
||||
void *memset_c(void *dst, uint8_t c, size_t count)
|
||||
{
|
||||
uint8_t *xs = (uint8_t *)dst;
|
||||
|
||||
while (count--)
|
||||
*xs++ = c;
|
||||
|
||||
return dst;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 内存拷贝函数
|
||||
*
|
||||
* @param dst 目标数组
|
||||
* @param src 源数组
|
||||
* @param Num 字节数
|
||||
* @return void*
|
||||
*/
|
||||
static void *memcpy(void *dst, const void *src, long Num)
|
||||
{
|
||||
int d0 = 0, d1 = 0, d2 = 0;
|
||||
__asm__ __volatile__("cld \n\t"
|
||||
"rep \n\t"
|
||||
"movsq \n\t"
|
||||
"testb $4,%b4 \n\t"
|
||||
"je 1f \n\t"
|
||||
"movsl \n\t"
|
||||
"1:\ttestb $2,%b4 \n\t"
|
||||
"je 2f \n\t"
|
||||
"movsw \n\t"
|
||||
"2:\ttestb $1,%b4 \n\t"
|
||||
"je 3f \n\t"
|
||||
"movsb \n\t"
|
||||
"3: \n\t"
|
||||
: "=&c"(d0), "=&D"(d1), "=&S"(d2)
|
||||
: "0"(Num / 8), "q"(Num), "1"(dst), "2"(src)
|
||||
: "memory");
|
||||
return dst;
|
||||
}
|
||||
|
||||
// 从io口读入8个bit
|
||||
unsigned char io_in8(unsigned short port)
|
||||
{
|
||||
unsigned char ret = 0;
|
||||
__asm__ __volatile__("inb %%dx, %0 \n\t"
|
||||
"mfence \n\t"
|
||||
: "=a"(ret)
|
||||
: "d"(port)
|
||||
: "memory");
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 从io口读入32个bit
|
||||
unsigned int io_in32(unsigned short port)
|
||||
{
|
||||
unsigned int ret = 0;
|
||||
__asm__ __volatile__("inl %%dx, %0 \n\t"
|
||||
"mfence \n\t"
|
||||
: "=a"(ret)
|
||||
: "d"(port)
|
||||
: "memory");
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 输出8个bit到输出端口
|
||||
void io_out8(unsigned short port, unsigned char value)
|
||||
{
|
||||
__asm__ __volatile__("outb %0, %%dx \n\t"
|
||||
"mfence \n\t"
|
||||
:
|
||||
: "a"(value), "d"(port)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
// 输出32个bit到输出端口
|
||||
void io_out32(unsigned short port, unsigned int value)
|
||||
{
|
||||
__asm__ __volatile__("outl %0, %%dx \n\t"
|
||||
"mfence \n\t"
|
||||
:
|
||||
: "a"(value), "d"(port)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从端口读入n个word到buffer
|
||||
*
|
||||
*/
|
||||
#define io_insw(port, buffer, nr) \
|
||||
__asm__ __volatile__("cld;rep;insw;mfence;" ::"d"(port), "D"(buffer), "c"(nr) \
|
||||
: "memory")
|
||||
|
||||
/**
|
||||
* @brief 从输出buffer中的n个word到端口
|
||||
*
|
||||
*/
|
||||
#define io_outsw(port, buffer, nr) \
|
||||
__asm__ __volatile__("cld;rep;outsw;mfence;" ::"d"(port), "S"(buffer), "c"(nr) \
|
||||
: "memory")
|
||||
|
||||
/**
|
||||
* @brief 验证地址空间是否为用户地址空间
|
||||
*
|
||||
* @param addr_start 地址起始值
|
||||
* @param length 地址长度
|
||||
* @return true
|
||||
* @return false
|
||||
*/
|
||||
bool verify_area(uint64_t addr_start, uint64_t length)
|
||||
{
|
||||
if ((addr_start + length) <= 0x00007fffffffffffUL) // 用户程序可用的的地址空间应<= 0x00007fffffffffffUL
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从用户空间搬运数据到内核空间
|
||||
*
|
||||
* @param dst 目的地址
|
||||
* @param src 源地址
|
||||
* @param size 搬运的大小
|
||||
* @return uint64_t
|
||||
*/
|
||||
static inline uint64_t copy_from_user(void *dst, void *src, uint64_t size)
|
||||
{
|
||||
uint64_t tmp0, tmp1;
|
||||
if (!verify_area((uint64_t)src, size))
|
||||
return 0;
|
||||
|
||||
/**
|
||||
* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
|
||||
*
|
||||
*/
|
||||
asm volatile("rep \n\t"
|
||||
"movsq \n\t"
|
||||
"movq %3, %0 \n\t"
|
||||
"rep \n\t"
|
||||
"movsb \n\t"
|
||||
: "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
|
||||
: "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
|
||||
: "memory");
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从内核空间搬运数据到用户空间
|
||||
*
|
||||
* @param dst 目的地址
|
||||
* @param src 源地址
|
||||
* @param size 搬运的大小
|
||||
* @return uint64_t
|
||||
*/
|
||||
static inline uint64_t copy_to_user(void *dst, void *src, uint64_t size)
|
||||
{
|
||||
if (verify_area((uint64_t)src, size))
|
||||
return 0;
|
||||
|
||||
/**
|
||||
* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
|
||||
*
|
||||
*/
|
||||
// todo:编译有bug
|
||||
// asm volatile("rep \n\t"
|
||||
// "movsq \n\t"
|
||||
// "movq %3, %0 \n\t"
|
||||
// "rep \n\t"
|
||||
// "movsb \n\t"
|
||||
// : "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
|
||||
// : "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
|
||||
// : "memory");
|
||||
memcpy(dst, src, size);
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 这个函数让蜂鸣器发声，目前仅用于真机调试。未来将移除，请勿依赖此函数。
|
||||
*
|
||||
* @param times 发声循环多少遍
|
||||
*/
|
||||
void __experimental_beep(uint64_t times);
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
||||
static __always_inline void __write8b(uint64_t vaddr, uint64_t value)
|
||||
{
|
||||
asm volatile("movq %%rdx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
||||
static __always_inline void __write4b(uint64_t vaddr, uint32_t value)
|
||||
{
|
||||
asm volatile("movl %%edx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint64_t __read8b(uint64_t vaddr)
|
||||
{
|
||||
uint64_t retval;
|
||||
asm volatile("movq 0(%%rax), %0"
|
||||
: "=r"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint32_t __read4b(uint64_t vaddr)
|
||||
{
|
||||
uint32_t retval;
|
||||
asm volatile("movl 0(%%rax), %0"
|
||||
: "=d"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将数据从src搬运到dst，并能正确处理地址重叠的问题
|
||||
|
||||
@ -1,354 +0,0 @@
|
||||
#pragma once
|
||||
#include <common/stddef.h>
|
||||
|
||||
#include <asm/asm.h>
|
||||
#include <common/compiler.h>
|
||||
|
||||
//链表数据结构
|
||||
struct List
|
||||
{
|
||||
struct List *prev, *next;
|
||||
};
|
||||
|
||||
//初始化循环链表
|
||||
static inline void list_init(struct List *list)
|
||||
{
|
||||
list->next = list;
|
||||
io_mfence();
|
||||
list->prev = list;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief
|
||||
|
||||
* @param entry 给定的节点
|
||||
* @param node 待插入的节点
|
||||
**/
|
||||
static inline void list_add(struct List *entry, struct List *node)
|
||||
{
|
||||
|
||||
node->next = entry->next;
|
||||
barrier();
|
||||
node->prev = entry;
|
||||
barrier();
|
||||
node->next->prev = node;
|
||||
barrier();
|
||||
entry->next = node;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将node添加到给定的list的结尾(也就是当前节点的前面)
|
||||
* @param entry 列表的入口
|
||||
* @param node 待添加的节点
|
||||
*/
|
||||
static inline void list_append(struct List *entry, struct List *node)
|
||||
{
|
||||
|
||||
struct List *tail = entry->prev;
|
||||
list_add(tail, node);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从列表中删除节点
|
||||
* @param entry 待删除的节点
|
||||
*/
|
||||
static inline void list_del(struct List *entry)
|
||||
{
|
||||
|
||||
entry->next->prev = entry->prev;
|
||||
entry->prev->next = entry->next;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 删除链表的结点，并将这个结点重新初始化
|
||||
*
|
||||
*/
|
||||
#define list_del_init(entry) \
|
||||
list_del(entry); \
|
||||
list_init(entry);
|
||||
|
||||
/**
|
||||
* @brief 将新的链表结点替换掉旧的链表结点，并使得旧的结点的前后指针均为NULL
|
||||
*
|
||||
* @param old 要被替换的结点
|
||||
* @param new 新的要换上去的结点
|
||||
*/
|
||||
static inline void list_replace(struct List *old, struct List *new)
|
||||
{
|
||||
if (old->prev != NULL)
|
||||
old->prev->next = new;
|
||||
new->prev = old->prev;
|
||||
if (old->next != NULL)
|
||||
old->next->prev = new;
|
||||
new->next = old->next;
|
||||
|
||||
old->prev = NULL;
|
||||
old->next = NULL;
|
||||
}
|
||||
|
||||
static inline bool list_empty(struct List *entry)
|
||||
{
|
||||
/**
|
||||
* @brief 判断循环链表是否为空
|
||||
* @param entry 入口
|
||||
*/
|
||||
|
||||
if (entry == entry->next && entry->prev == entry)
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取链表的上一个元素
|
||||
*
|
||||
* @param entry
|
||||
* @return 链表的上一个元素
|
||||
*/
|
||||
static inline struct List *list_prev(struct List *entry)
|
||||
{
|
||||
if (entry->prev != NULL)
|
||||
return entry->prev;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取链表的下一个元素
|
||||
*
|
||||
* @param entry
|
||||
* @return 链表的下一个元素
|
||||
*/
|
||||
static inline struct List *list_next(struct List *entry)
|
||||
{
|
||||
if (entry->next != NULL)
|
||||
return entry->next;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取当前entry的链表结构体
|
||||
*
|
||||
* @param ptr 指向List结构体的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_entry(ptr, type, member) container_of(ptr, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的第一个元素
|
||||
* 请注意，该宏要求链表非空，否则会出错
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_first_entry(ptr, type, member) list_entry((ptr)->next, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的第一个元素
|
||||
* 若链表为空，则返回NULL
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_first_entry_or_null(ptr, type, member) (!list_empty(ptr) ? list_entry((ptr)->next, type, member) : NULL)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的最后一个元素
|
||||
* 请注意，该宏要求链表非空，否则会出错
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_last_entry(ptr, type, member) list_entry((ptr)->prev, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的最后一个元素
|
||||
* 若链表为空，则返回NULL
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_last_entry_or_full(ptr, type, member) (!list_empty(ptr) ? list_entry((ptr)->prev, type, member) : NULL)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的下一个元素
|
||||
*
|
||||
* @param pos 指向当前的外层结构体的指针
|
||||
* @param member 链表结构体在外层结构体内的变量名
|
||||
*/
|
||||
#define list_next_entry(pos, member) list_entry((pos)->member.next, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的上一个元素
|
||||
*
|
||||
* @param pos 指向当前的外层结构体的指针
|
||||
* @param member 链表结构体在外层结构体内的变量名
|
||||
*/
|
||||
#define list_prev_entry(pos, member) list_entry((pos)->member.prev, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each(ptr, head) \
|
||||
for ((ptr) = (head)->next; (ptr) != (head); (ptr) = (ptr)->next)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从后往前）
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_prev(ptr, head) \
|
||||
for ((ptr) = (head)->prev; (ptr) != (head); (ptr) = (ptr)->prev)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）（支持删除当前链表结点）
|
||||
* 该宏通过暂存中间变量，防止在迭代链表的过程中，由于删除了当前ptr所指向的链表结点从而造成错误
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param n 用于存储临时值的List类型的指针
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_safe(ptr, n, head) \
|
||||
for ((ptr) = (head)->next, (n) = (ptr)->next; (ptr) != (head); (ptr) = n, n = (ptr)->next)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）（支持删除当前链表结点）
|
||||
* 该宏通过暂存中间变量，防止在迭代链表的过程中，由于删除了当前ptr所指向的链表结点从而造成错误
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param n 用于存储临时值的List类型的指针
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_prev_safe(ptr, n, head) \
|
||||
for ((ptr) = (head)->prev, (n) = (ptr)->prev; (ptr) != (head); (ptr) = n, n = (ptr)->prev)
|
||||
|
||||
/**
|
||||
* @brief 从头开始迭代给定类型的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry(pos, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从头开始迭代给定类型的链表（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe(pos, n, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member), n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 逆序迭代给定类型的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_reverse(pos, head, member) \
|
||||
for (pos = list_last_entry(head, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_prev_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 为list_for_each_entry_continue()准备一个'pos'结构体
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的，用作迭代起点的指针
|
||||
* @param head 指向要开始迭代的struct List结构体的指针
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_prepare_entry(pos, head, member) \
|
||||
((pos) ? pos : list_entry(head, typeof(*pos), member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[下一个元素开始],继续迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_continue(pos, head, member) \
|
||||
for (pos = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[下一个元素开始],继续迭代给定的链表。（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_continue(pos, n, head, member) \
|
||||
for (pos = list_next_entry(pos, member), n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[上一个元素开始],【逆序】迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_continue_reverse(pos, head, member) \
|
||||
for (pos = list_prev_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_prev_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[上一个元素开始],【逆序】迭代给定的链表。（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_continue_reverse(pos, n, head, member) \
|
||||
for (pos = list_prev_entry(pos, member), n = list_prev_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_prev_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置开始,继续迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_from(pos, head, member) \
|
||||
for (; \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置开始,继续迭代给定的链表.（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_from(pos, n, head, member) \
|
||||
for (n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
@ -13,20 +13,6 @@
|
||||
#include <syscall/syscall.h>
|
||||
#include <syscall/syscall_num.h>
|
||||
|
||||
/**
|
||||
* @brief fork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t fork(void);
|
||||
|
||||
/**
|
||||
* @brief vfork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t vfork(void);
|
||||
|
||||
/**
|
||||
* @brief 交换n字节
|
||||
* @param src 源地址
|
||||
|
||||
@ -17,9 +17,6 @@ pub struct Partition {
|
||||
pub sectors_num: u64, // 该分区的扇区数
|
||||
disk: Weak<dyn BlockDevice>, // 当前分区所属的磁盘
|
||||
pub partno: u16, // 在磁盘上的分区号
|
||||
|
||||
// struct block_device_request_queue *bd_queue; // 请求队列
|
||||
// struct vfs_superblock_t *bd_superblock; // 执行超级块的指针
|
||||
}
|
||||
|
||||
/// @brief: 分区信息 - 成员函数
|
||||
|
||||
@ -44,7 +44,7 @@ hardware_intr_controller ps2_keyboard_intr_controller =
|
||||
* @param filp 文件指针
|
||||
* @return long
|
||||
*/
|
||||
long ps2_keyboard_open(struct vfs_index_node_t *inode, struct vfs_file_t *filp)
|
||||
long ps2_keyboard_open(void *inode, void *filp)
|
||||
{
|
||||
ps2_keyboard_reset_buffer(&kb_buf);
|
||||
return 0;
|
||||
@ -57,7 +57,7 @@ long ps2_keyboard_open(struct vfs_index_node_t *inode, struct vfs_file_t *filp)
|
||||
* @param filp 文件指针
|
||||
* @return long
|
||||
*/
|
||||
long ps2_keyboard_close(struct vfs_index_node_t *inode, struct vfs_file_t *filp)
|
||||
long ps2_keyboard_close(void *inode, void *filp)
|
||||
{
|
||||
ps2_keyboard_reset_buffer(&kb_buf);
|
||||
return 0;
|
||||
@ -72,7 +72,7 @@ long ps2_keyboard_close(struct vfs_index_node_t *inode, struct vfs_file_t *filp)
|
||||
* @param arg 参数
|
||||
* @return long
|
||||
*/
|
||||
long ps2_keyboard_ioctl(struct vfs_index_node_t *inode, struct vfs_file_t *filp, uint64_t cmd, uint64_t arg)
|
||||
long ps2_keyboard_ioctl(void *inode, void *filp, uint64_t cmd, uint64_t arg)
|
||||
{
|
||||
switch (cmd)
|
||||
{
|
||||
@ -95,7 +95,7 @@ long ps2_keyboard_ioctl(struct vfs_index_node_t *inode, struct vfs_file_t *filp,
|
||||
* @param position 读取的位置
|
||||
* @return long 读取的字节数
|
||||
*/
|
||||
long ps2_keyboard_read(struct vfs_file_t *filp, char *buf, int64_t count, long *position)
|
||||
long ps2_keyboard_read(void *filp, char *buf, int64_t count, long *position)
|
||||
{
|
||||
// 缓冲区为空则等待
|
||||
while (kfifo_empty(&kb_buf))
|
||||
@ -114,7 +114,7 @@ long ps2_keyboard_read(struct vfs_file_t *filp, char *buf, int64_t count, long *
|
||||
* @param position
|
||||
* @return long
|
||||
*/
|
||||
long ps2_keyboard_write(struct vfs_file_t *filp, char *buf, int64_t count, long *position)
|
||||
long ps2_keyboard_write(void *filp, char *buf, int64_t count, long *position)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
use core::sync::atomic::AtomicI32;
|
||||
use core::{ffi::c_void, sync::atomic::AtomicI32};
|
||||
|
||||
use alloc::sync::{Arc, Weak};
|
||||
|
||||
@ -11,7 +11,7 @@ use crate::{
|
||||
Metadata, PollStatus,
|
||||
},
|
||||
},
|
||||
include::bindings::bindings::{vfs_file_operations_t, vfs_file_t, vfs_index_node_t},
|
||||
include::bindings::bindings::vfs_file_operations_t,
|
||||
libs::{keyboard_parser::TypeOneFSM, rwlock::RwLock, spinlock::SpinLock},
|
||||
syscall::SystemError,
|
||||
time::TimeSpec,
|
||||
@ -104,7 +104,7 @@ impl IndexNode for LockedPS2KeyBoardInode {
|
||||
let func = guard.f_ops.read.unwrap();
|
||||
let r = unsafe {
|
||||
func(
|
||||
0 as *mut vfs_file_t,
|
||||
0 as *mut c_void,
|
||||
&mut buf[0..len] as *mut [u8] as *mut i8,
|
||||
len as i64,
|
||||
0 as *mut i64,
|
||||
@ -133,7 +133,7 @@ impl IndexNode for LockedPS2KeyBoardInode {
|
||||
// 第一次打开，需要初始化
|
||||
let guard = self.0.write();
|
||||
let func = guard.f_ops.open.unwrap();
|
||||
let _ = unsafe { func(0 as *mut vfs_index_node_t, 0 as *mut vfs_file_t) };
|
||||
let _ = unsafe { func(0 as *mut c_void, 0 as *mut c_void) };
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
@ -147,7 +147,7 @@ impl IndexNode for LockedPS2KeyBoardInode {
|
||||
// 最后一次关闭，需要释放
|
||||
let guard = self.0.write();
|
||||
let func = guard.f_ops.close.unwrap();
|
||||
let _ = unsafe { func(0 as *mut vfs_index_node_t, 0 as *mut vfs_file_t) };
|
||||
let _ = unsafe { func(0 as *mut c_void, 0 as *mut c_void) };
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
|
||||
@ -10,22 +10,15 @@ use alloc::{boxed::Box, sync::Arc};
|
||||
use num_traits::FromPrimitive;
|
||||
|
||||
use crate::{
|
||||
arch::interrupt::{cli, sti},
|
||||
arch::CurrentIrqArch,
|
||||
exception::InterruptArch,
|
||||
include::bindings::bindings::MAX_CPU_NUM,
|
||||
kdebug, kinfo,
|
||||
libs::rwlock::RwLock,
|
||||
process::ProcessManager,
|
||||
smp::core::smp_get_processor_id,
|
||||
syscall::SystemError,
|
||||
time::timer::clock,
|
||||
arch::CurrentIrqArch, exception::InterruptArch, kdebug, kinfo, libs::rwlock::RwLock,
|
||||
mm::percpu::PerCpu, process::ProcessManager, smp::core::smp_get_processor_id,
|
||||
syscall::SystemError, time::timer::clock,
|
||||
};
|
||||
|
||||
const MAX_SOFTIRQ_NUM: u64 = 64;
|
||||
const MAX_SOFTIRQ_RESTART: i32 = 20;
|
||||
|
||||
static mut __CPU_PENDING: Option<Box<[VecStatus; MAX_CPU_NUM as usize]>> = None;
|
||||
static mut __CPU_PENDING: Option<Box<[VecStatus; PerCpu::MAX_CPU_NUM]>> = None;
|
||||
static mut __SORTIRQ_VECTORS: *mut Softirq = null_mut();
|
||||
|
||||
#[no_mangle]
|
||||
@ -37,9 +30,11 @@ pub fn softirq_init() -> Result<(), SystemError> {
|
||||
kinfo!("Initializing softirq...");
|
||||
unsafe {
|
||||
__SORTIRQ_VECTORS = Box::leak(Box::new(Softirq::new()));
|
||||
__CPU_PENDING = Some(Box::new([VecStatus::default(); MAX_CPU_NUM as usize]));
|
||||
__CPU_PENDING = Some(Box::new(
|
||||
[VecStatus::default(); PerCpu::MAX_CPU_NUM as usize],
|
||||
));
|
||||
let cpu_pending = __CPU_PENDING.as_mut().unwrap();
|
||||
for i in 0..MAX_CPU_NUM {
|
||||
for i in 0..PerCpu::MAX_CPU_NUM {
|
||||
cpu_pending[i as usize] = VecStatus::default();
|
||||
}
|
||||
}
|
||||
@ -177,7 +172,7 @@ impl Softirq {
|
||||
cpu_pending(cpu_id as usize).bits = 0;
|
||||
compiler_fence(Ordering::SeqCst);
|
||||
|
||||
sti();
|
||||
unsafe { CurrentIrqArch::interrupt_enable() };
|
||||
if pending != 0 {
|
||||
for i in 0..MAX_SOFTIRQ_NUM {
|
||||
if pending & (1 << i) == 0 {
|
||||
@ -205,7 +200,7 @@ impl Softirq {
|
||||
}
|
||||
}
|
||||
}
|
||||
cli();
|
||||
unsafe { CurrentIrqArch::interrupt_disable() };
|
||||
max_restart -= 1;
|
||||
compiler_fence(Ordering::SeqCst);
|
||||
if cpu_pending(cpu_id as usize).is_empty() {
|
||||
|
||||
@ -11,184 +11,14 @@
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <common/blk_types.h>
|
||||
#include <common/fcntl.h>
|
||||
#include <common/glib.h>
|
||||
#include <common/lockref.h>
|
||||
#include <DragonOS/stdint.h>
|
||||
#include <mm/slab.h>
|
||||
|
||||
#define VFS_DPT_MBR 0 // MBR分区表
|
||||
#define VFS_DPT_GPT 1 // GPT分区表
|
||||
|
||||
#define VFS_MAX_PATHLEN 4096
|
||||
|
||||
/**
|
||||
* @brief inode的属性
|
||||
*
|
||||
*/
|
||||
#define VFS_IF_FILE (1UL << 0)
|
||||
#define VFS_IF_DIR (1UL << 1) // 文件夹
|
||||
#define VFS_IF_DEVICE (1UL << 2)
|
||||
#define VFS_IF_DEAD (1UL << 3) /* removed, but still open directory */
|
||||
|
||||
struct vfs_super_block_operations_t;
|
||||
struct vfs_inode_operations_t;
|
||||
|
||||
struct vfs_index_node_t;
|
||||
struct vfs_dir_entry_operations_t;
|
||||
|
||||
#define VFS_DF_MOUNTED (1 << 0) // 当前dentry是一个挂载点
|
||||
#define VFS_DF_CANNOT_MOUNT (1 << 1) // 当前dentry是一个挂载点
|
||||
struct vfs_dir_entry_t
|
||||
{
|
||||
char *name;
|
||||
int name_length; // 名字的长度（不包含字符串末尾的'\0'）
|
||||
uint32_t d_flags; // dentry标志位
|
||||
struct List child_node_list;
|
||||
struct List subdirs_list;
|
||||
|
||||
struct lockref lockref; // 该lockref包含了dentry的自旋锁以及引用计数
|
||||
struct vfs_index_node_t *dir_inode;
|
||||
struct vfs_dir_entry_t *parent;
|
||||
struct vfs_dir_entry_operations_t *dir_ops;
|
||||
};
|
||||
|
||||
struct vfs_superblock_t
|
||||
{
|
||||
struct vfs_dir_entry_t *root;
|
||||
struct vfs_super_block_operations_t *sb_ops;
|
||||
struct vfs_dir_entry_operations_t *dir_ops; // dentry's operations
|
||||
struct block_device *blk_device;
|
||||
void *private_sb_info;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief inode结构体
|
||||
*
|
||||
*/
|
||||
struct vfs_index_node_t
|
||||
{
|
||||
uint64_t file_size; // 文件大小
|
||||
uint64_t blocks; // 占用的扇区数
|
||||
uint64_t attribute;
|
||||
struct lockref lockref; // 自旋锁与引用计数
|
||||
|
||||
struct vfs_superblock_t *sb;
|
||||
struct vfs_file_operations_t *file_ops;
|
||||
struct vfs_inode_operations_t *inode_ops;
|
||||
|
||||
void *private_inode_info;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 文件的mode
|
||||
*
|
||||
*/
|
||||
#define VFS_FILE_MODE_READ (1 << 0)
|
||||
#define VFS_FILE_MODE_WRITE (1 << 1)
|
||||
#define VFS_FILE_MODE_RW (VFS_FILE_MODE_READ | VFS_FILE_MODE_WRITE)
|
||||
|
||||
#define vfs_file_can_read(file) (((file)->mode) & VFS_FILE_MODE_READ)
|
||||
#define vfs_file_can_write(file) (((file)->mode) & VFS_FILE_MODE_WRITE)
|
||||
#define vfs_file_can_rw(file) ((((file)->mode) & VFS_FILE_MODE_RW) == VFS_FILE_MODE_RW)
|
||||
|
||||
/**
|
||||
* @brief 文件描述符
|
||||
*
|
||||
*/
|
||||
struct vfs_file_t
|
||||
{
|
||||
long position;
|
||||
uint64_t mode;
|
||||
|
||||
struct vfs_dir_entry_t *dEntry;
|
||||
struct vfs_file_operations_t *file_ops;
|
||||
void *private_data;
|
||||
};
|
||||
|
||||
struct vfs_filesystem_type_t
|
||||
{
|
||||
char *name;
|
||||
int fs_flags;
|
||||
struct vfs_superblock_t *(*read_superblock)(
|
||||
struct block_device *blk); // 解析文件系统引导扇区的函数，为文件系统创建超级块结构。
|
||||
struct vfs_filesystem_type_t *next;
|
||||
};
|
||||
|
||||
struct vfs_super_block_operations_t
|
||||
{
|
||||
void (*write_superblock)(struct vfs_superblock_t *sb); // 将超级块信息写入磁盘
|
||||
void (*put_superblock)(struct vfs_superblock_t *sb);
|
||||
void (*write_inode)(struct vfs_index_node_t *inode); // 将inode信息写入磁盘
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 对vfs的inode的操作抽象
|
||||
*
|
||||
*/
|
||||
struct vfs_inode_operations_t
|
||||
{
|
||||
/**
|
||||
* @brief 创建新的文件
|
||||
* @param parent_inode 父目录的inode结构体
|
||||
* @param dest_dEntry 新文件的dentry
|
||||
* @param mode 创建模式
|
||||
*/
|
||||
long (*create)(struct vfs_index_node_t *parent_inode, struct vfs_dir_entry_t *dest_dEntry, int mode);
|
||||
/**
|
||||
* @brief 在文件系统中查找指定的目录项
|
||||
* @param parent_inode 父目录项（在这个目录下查找）
|
||||
* @param dest_dEntry 构造的目标目录项的结构体（传入名称，然后更多的详细信息将在本函数中完成填写）
|
||||
*
|
||||
*/
|
||||
struct vfs_dir_entry_t *(*lookup)(struct vfs_index_node_t *parent_inode, struct vfs_dir_entry_t *dest_dEntry);
|
||||
/**
|
||||
* @brief 创建文件夹
|
||||
* @param inode 父目录的inode
|
||||
* @param dEntry 新的文件夹的dentry
|
||||
* @param mode 创建文件夹的mode
|
||||
*/
|
||||
long (*mkdir)(struct vfs_index_node_t *inode, struct vfs_dir_entry_t *dEntry, int mode);
|
||||
long (*rmdir)(struct vfs_index_node_t *inode, struct vfs_dir_entry_t *dEntry);
|
||||
long (*rename)(struct vfs_index_node_t *old_inode, struct vfs_dir_entry_t *old_dEntry,
|
||||
struct vfs_index_node_t *new_inode, struct vfs_dir_entry_t *new_dEntry);
|
||||
long (*getAttr)(struct vfs_dir_entry_t *dEntry, uint64_t *attr);
|
||||
long (*setAttr)(struct vfs_dir_entry_t *dEntry, uint64_t *attr);
|
||||
|
||||
/**
|
||||
* @brief 取消inode和dentry之间的链接关系（删除文件）
|
||||
*
|
||||
* @param inode 要被取消关联关系的目录项的【父目录项】
|
||||
* @param dentry 要被取消关联关系的子目录项
|
||||
*/
|
||||
long (*unlink)(struct vfs_index_node_t *inode, struct vfs_dir_entry_t *dentry);
|
||||
};
|
||||
|
||||
struct vfs_dir_entry_operations_t
|
||||
{
|
||||
long (*compare)(struct vfs_dir_entry_t *parent_dEntry, char *source_filename, char *dest_filename);
|
||||
long (*hash)(struct vfs_dir_entry_t *dEntry, char *filename);
|
||||
long (*release)(struct vfs_dir_entry_t *dEntry);
|
||||
long (*iput)(struct vfs_dir_entry_t *dEntry, struct vfs_index_node_t *inode);
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 填充dirent的函数指针的类型定义
|
||||
*
|
||||
*/
|
||||
typedef int (*vfs_filldir_t)(void *buf, ino_t d_ino, char *name, int namelen, unsigned char type, off_t offset);
|
||||
|
||||
struct vfs_file_operations_t
|
||||
{
|
||||
long (*open)(struct vfs_index_node_t *inode, struct vfs_file_t *file_ptr);
|
||||
long (*close)(struct vfs_index_node_t *inode, struct vfs_file_t *file_ptr);
|
||||
long (*read)(struct vfs_file_t *file_ptr, char *buf, int64_t count, long *position);
|
||||
long (*write)(struct vfs_file_t *file_ptr, char *buf, int64_t count, long *position);
|
||||
long (*lseek)(struct vfs_file_t *file_ptr, long offset, long origin);
|
||||
long (*ioctl)(struct vfs_index_node_t *inode, struct vfs_file_t *file_ptr, uint64_t cmd, uint64_t arg);
|
||||
|
||||
long (*readdir)(struct vfs_file_t *file_ptr, void *dirent, vfs_filldir_t filler); // 读取文件夹
|
||||
long (*open)(void *not_used, void *not_used1);
|
||||
long (*close)(void *not_used, void *not_used1);
|
||||
long (*read)(void *not_used1, char *buf, int64_t count, long *position);
|
||||
long (*write)(void *not_used1, char *buf, int64_t count, long *position);
|
||||
long (*lseek)(void *not_used1, long offset, long origin);
|
||||
long (*ioctl)(void *not_used, void *not_used1, uint64_t cmd, uint64_t arg);
|
||||
};
|
||||
|
||||
/**
|
||||
|
||||
@ -9,7 +9,7 @@ use alloc::{
|
||||
use crate::{
|
||||
driver::base::{block::SeekFrom, device::DeviceNumber},
|
||||
filesystem::vfs::file::FileDescriptorVec,
|
||||
include::bindings::bindings::{verify_area, PROC_MAX_FD_NUM},
|
||||
include::bindings::bindings::verify_area,
|
||||
kerror,
|
||||
libs::rwlock::RwLockWriteGuard,
|
||||
mm::VirtAddr,
|
||||
@ -465,7 +465,7 @@ impl Syscall {
|
||||
let dirent =
|
||||
unsafe { (buf.as_mut_ptr() as *mut Dirent).as_mut() }.ok_or(SystemError::EFAULT)?;
|
||||
|
||||
if fd < 0 || fd as u32 > PROC_MAX_FD_NUM {
|
||||
if fd < 0 || fd as usize > FileDescriptorVec::PROCESS_MAX_FD {
|
||||
return Err(SystemError::EBADF);
|
||||
}
|
||||
|
||||
|
||||
@ -10,7 +10,6 @@
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
#include <common/blk_types.h>
|
||||
#include <common/crc16.h>
|
||||
#include <common/crc32.h>
|
||||
#include <common/crc64.h>
|
||||
@ -19,7 +18,6 @@
|
||||
#include <common/glib.h>
|
||||
#include <common/idr.h>
|
||||
#include <common/kfifo.h>
|
||||
#include <common/list.h>
|
||||
#include <common/lz4.h>
|
||||
#include <common/printk.h>
|
||||
#include <common/spinlock.h>
|
||||
@ -31,7 +29,6 @@
|
||||
#include <exception/gate.h>
|
||||
#include <include/DragonOS/refcount.h>
|
||||
#include <libs/lib_ui/textui.h>
|
||||
#include <mm/mm-types.h>
|
||||
#include <mm/mm.h>
|
||||
#include <mm/mmio.h>
|
||||
#include <mm/slab.h>
|
||||
|
||||
@ -1,31 +1,6 @@
|
||||
#include <common/glib.h>
|
||||
#include <common/string.h>
|
||||
|
||||
/**
|
||||
* @brief 这个函数让蜂鸣器发声，目前仅用于真机调试。未来将移除，请勿依赖此函数。
|
||||
*
|
||||
* @param times 发声循环多少遍
|
||||
*/
|
||||
void __experimental_beep(uint64_t times)
|
||||
{
|
||||
io_out8(0x43, 182&0xff);
|
||||
io_out8(0x42, 2280&0xff);
|
||||
io_out8(0x42, (2280>>8)&0xff);
|
||||
uint32_t x = io_in8(0x61)&0xff;
|
||||
x |= 3;
|
||||
io_out8(0x61, x&0xff);
|
||||
|
||||
times *= 10000;
|
||||
for(uint64_t i=0;i<times;++i)
|
||||
pause();
|
||||
x = io_in8(0x61);
|
||||
x &= 0xfc;
|
||||
io_out8(0x61, x&0xff);
|
||||
|
||||
// 延迟一段时间
|
||||
for(uint64_t i=0;i<times;++i)
|
||||
pause();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将数据从src搬运到dst，并能正确处理地址重叠的问题
|
||||
|
||||
@ -1,25 +1,6 @@
|
||||
#include <common/unistd.h>
|
||||
#include <common/glib.h>
|
||||
|
||||
/**
|
||||
* @brief fork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t fork(void)
|
||||
{
|
||||
return (pid_t)enter_syscall_int(SYS_FORK, 0, 0, 0, 0, 0, 0, 0, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief vfork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t vfork(void)
|
||||
{
|
||||
return (pid_t)enter_syscall_int(SYS_VFORK, 0, 0, 0, 0, 0, 0, 0, 0);
|
||||
}
|
||||
|
||||
void swab(void *restrict src, void *restrict dest, ssize_t nbytes)
|
||||
{
|
||||
|
||||
@ -1,215 +0,0 @@
|
||||
//
|
||||
// Created by longjin on 2022/1/20.
|
||||
//
|
||||
|
||||
#include "common/glib.h"
|
||||
#include "common/kprint.h"
|
||||
#include "common/printk.h"
|
||||
#include "exception/gate.h"
|
||||
#include "exception/irq.h"
|
||||
#include "exception/trap.h"
|
||||
#include "mm/mm.h"
|
||||
#include "mm/slab.h"
|
||||
#include "process/process.h"
|
||||
#include "smp/smp.h"
|
||||
#include "syscall/syscall.h"
|
||||
#include <exception/softirq.h>
|
||||
#include <libs/lib_ui/screen_manager.h>
|
||||
#include <libs/lib_ui/textui.h>
|
||||
#include <sched/sched.h>
|
||||
#include <smp/ipi.h>
|
||||
|
||||
#include <filesystem/vfs/VFS.h>
|
||||
|
||||
#include "driver/acpi/acpi.h"
|
||||
#include "driver/disk/ata.h"
|
||||
#include "driver/keyboard/ps2_keyboard.h"
|
||||
#include "driver/mouse/ps2_mouse.h"
|
||||
#include "driver/multiboot2/multiboot2.h"
|
||||
#include <time/timer.h>
|
||||
|
||||
#include <arch/x86_64/driver/apic/apic_timer.h>
|
||||
#include <virt/kvm/kvm.h>
|
||||
|
||||
extern int rs_driver_init();
|
||||
extern void rs_softirq_init();
|
||||
extern void rs_mm_init();
|
||||
extern void rs_kthread_init();
|
||||
extern void rs_init_intertrait();
|
||||
extern void rs_init_before_mem_init();
|
||||
extern int rs_setup_arch();
|
||||
extern void rs_futex_init();
|
||||
extern int rs_hpet_init();
|
||||
extern int rs_hpet_enable();
|
||||
extern int rs_tsc_init();
|
||||
|
||||
ul bsp_idt_size, bsp_gdt_size;
|
||||
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O0")
|
||||
struct gdtr gdtp;
|
||||
struct idtr idtp;
|
||||
ul _stack_start;
|
||||
void reload_gdt()
|
||||
{
|
||||
|
||||
gdtp.size = bsp_gdt_size - 1;
|
||||
gdtp.gdt_vaddr = (ul)phys_2_virt((ul)&GDT_Table);
|
||||
|
||||
asm volatile("lgdt (%0) \n\t" ::"r"(&gdtp)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
void reload_idt()
|
||||
{
|
||||
|
||||
idtp.size = bsp_idt_size - 1;
|
||||
idtp.idt_vaddr = (ul)phys_2_virt((ul)&IDT_Table);
|
||||
// kdebug("gdtvaddr=%#018lx", p.gdt_vaddr);
|
||||
// kdebug("gdt size=%d", p.size);
|
||||
|
||||
asm volatile("lidt (%0) \n\t" ::"r"(&idtp)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
// 初始化系统各模块
|
||||
void system_initialize()
|
||||
{
|
||||
rs_init_before_mem_init();
|
||||
// 重新加载gdt和idt
|
||||
ul tss_item_addr = (ul)phys_2_virt(0x7c00);
|
||||
|
||||
_stack_start = head_stack_start; // 保存init proc的栈基地址（由于之后取消了地址重映射，因此必须在这里重新保存）
|
||||
kdebug("_stack_start=%#018lx", _stack_start);
|
||||
|
||||
set_current_core_tss(_stack_start, 0);
|
||||
rs_load_current_core_tss();
|
||||
|
||||
cpu_core_info[0].stack_start = _stack_start;
|
||||
|
||||
// 初始化中断描述符表
|
||||
sys_vector_init();
|
||||
// 初始化内存管理单元
|
||||
// mm_init();
|
||||
rs_mm_init();
|
||||
// 内存管理单元初始化完毕后，需要立即重新初始化显示驱动。
|
||||
// 原因是，系统启动初期，framebuffer被映射到48M地址处，
|
||||
// mm初始化完毕后，若不重新初始化显示驱动，将会导致错误的数据写入内存，从而造成其他模块崩溃
|
||||
// 对显示模块进行低级初始化，不启用double buffer
|
||||
|
||||
io_mfence();
|
||||
scm_reinit();
|
||||
rs_textui_init();
|
||||
|
||||
rs_init_intertrait();
|
||||
// kinfo("vaddr:%#018lx", video_frame_buffer_info.vaddr);
|
||||
io_mfence();
|
||||
vfs_init();
|
||||
|
||||
rs_driver_init();
|
||||
|
||||
acpi_init();
|
||||
|
||||
rs_setup_arch();
|
||||
io_mfence();
|
||||
irq_init();
|
||||
rs_process_init();
|
||||
sched_init();
|
||||
|
||||
sti();
|
||||
io_mfence();
|
||||
|
||||
rs_softirq_init();
|
||||
|
||||
syscall_init();
|
||||
io_mfence();
|
||||
|
||||
rs_timekeeping_init();
|
||||
io_mfence();
|
||||
|
||||
rs_timer_init();
|
||||
io_mfence();
|
||||
|
||||
rs_jiffies_init();
|
||||
io_mfence();
|
||||
|
||||
rs_kthread_init();
|
||||
io_mfence();
|
||||
|
||||
io_mfence();
|
||||
rs_clocksource_boot_finish();
|
||||
|
||||
io_mfence();
|
||||
|
||||
cpu_init();
|
||||
|
||||
ps2_keyboard_init();
|
||||
io_mfence();
|
||||
|
||||
rs_pci_init();
|
||||
|
||||
|
||||
// 这里必须加内存屏障，否则会出错
|
||||
io_mfence();
|
||||
smp_init();
|
||||
|
||||
io_mfence();
|
||||
rs_futex_init();
|
||||
cli();
|
||||
rs_hpet_init();
|
||||
rs_hpet_enable();
|
||||
rs_tsc_init();
|
||||
|
||||
io_mfence();
|
||||
|
||||
kvm_init();
|
||||
|
||||
io_mfence();
|
||||
// 系统初始化到此结束，剩下的初始化功能应当放在初始内核线程中执行
|
||||
|
||||
apic_timer_init();
|
||||
// while(1);
|
||||
io_mfence();
|
||||
sti();
|
||||
while (1)
|
||||
;
|
||||
}
|
||||
|
||||
// 操作系统内核从这里开始执行
|
||||
void Start_Kernel(void)
|
||||
{
|
||||
|
||||
// 获取multiboot2的信息
|
||||
uint64_t mb2_info, mb2_magic;
|
||||
__asm__ __volatile__("movq %%r15, %0 \n\t"
|
||||
"movq %%r14, %1 \n\t"
|
||||
"movq %%r13, %2 \n\t"
|
||||
"movq %%r12, %3 \n\t"
|
||||
: "=r"(mb2_info), "=r"(mb2_magic), "=r"(bsp_gdt_size), "=r"(bsp_idt_size)::"memory");
|
||||
reload_gdt();
|
||||
reload_idt();
|
||||
|
||||
mb2_info &= 0xffffffff;
|
||||
mb2_magic &= 0xffffffff;
|
||||
multiboot2_init(mb2_info, mb2_magic);
|
||||
io_mfence();
|
||||
system_initialize();
|
||||
io_mfence();
|
||||
|
||||
// idle
|
||||
while (1)
|
||||
{
|
||||
// 如果调用的时候，启用了中断，则hlt。否则认为是bug
|
||||
if (get_rflags() & 0x200)
|
||||
{
|
||||
// kdebug("hlt");
|
||||
hlt();
|
||||
}
|
||||
else
|
||||
{
|
||||
BUG_ON(1);
|
||||
pause();
|
||||
}
|
||||
}
|
||||
}
|
||||
#pragma GCC pop_options
|
||||
@ -7,7 +7,7 @@ use hashbrown::HashMap;
|
||||
|
||||
use crate::{
|
||||
arch::mm::LowAddressRemapping,
|
||||
include::bindings::bindings::{gfp_t, vm_flags_t, PAGE_U_S},
|
||||
include::bindings::bindings::{gfp_t, PAGE_U_S},
|
||||
kerror,
|
||||
libs::{align::page_align_up, spinlock::SpinLock},
|
||||
mm::MMArch,
|
||||
@ -140,7 +140,7 @@ pub unsafe extern "C" fn rs_unmap_at_low_addr() -> usize {
|
||||
#[no_mangle]
|
||||
unsafe extern "C" fn rs_mmio_create(
|
||||
size: u32,
|
||||
_vm_flags: vm_flags_t,
|
||||
_vm_flags: u64,
|
||||
res_vaddr: *mut u64,
|
||||
res_length: *mut u64,
|
||||
) -> i32 {
|
||||
|
||||
@ -1,6 +0,0 @@
|
||||
#pragma once
|
||||
#include <common/glib.h>
|
||||
#include <common/spinlock.h>
|
||||
#include <common/atomic.h>
|
||||
|
||||
typedef uint64_t vm_flags_t;
|
||||
@ -1,7 +1,6 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/glib.h>
|
||||
#include <mm/mm-types.h>
|
||||
#include <process/process.h>
|
||||
|
||||
extern void rs_pseudo_map_phys(uint64_t virt_addr, uint64_t phys_addr, uint64_t size);
|
||||
|
||||
@ -1,6 +1,4 @@
|
||||
#pragma once
|
||||
|
||||
#include "proc-types.h"
|
||||
|
||||
extern void rs_preempt_disable();
|
||||
extern void rs_preempt_enable();
|
||||
|
||||
@ -1,22 +0,0 @@
|
||||
#pragma once
|
||||
|
||||
#include "ptrace.h"
|
||||
#include <DragonOS/stdint.h>
|
||||
|
||||
// 进程最大可拥有的文件描述符数量
|
||||
#define PROC_MAX_FD_NUM 16
|
||||
|
||||
// 进程的内核栈大小 32K
|
||||
#define STACK_SIZE 32768
|
||||
|
||||
// 进程的运行状态
|
||||
// 正在运行
|
||||
#define PROC_RUNNING (1 << 0)
|
||||
// 可被信号打断
|
||||
#define PROC_INTERRUPTIBLE (1 << 1)
|
||||
// 不可被信号打断
|
||||
#define PROC_UNINTERRUPTIBLE (1 << 2)
|
||||
// 挂起
|
||||
#define PROC_ZOMBIE (1 << 3)
|
||||
// 已停止
|
||||
#define PROC_STOPPED (1 << 4)
|
||||
@ -14,11 +14,8 @@
|
||||
#include <common/errno.h>
|
||||
#include <common/glib.h>
|
||||
#include <filesystem/vfs/VFS.h>
|
||||
#include <mm/mm-types.h>
|
||||
#include <syscall/syscall.h>
|
||||
|
||||
#include "proc-types.h"
|
||||
|
||||
/**
|
||||
* @brief 进程退出时执行的函数
|
||||
*
|
||||
|
||||
@ -2,7 +2,7 @@
|
||||
|
||||
#include <arch/arch.h>
|
||||
#if ARCH(I386) || ARCH(X86_64)
|
||||
#include <arch/x86_64/x86_64_ipi.h>
|
||||
#include <arch/x86_64/include/x86_64_ipi.h>
|
||||
#else
|
||||
#error "error type of arch!"
|
||||
#endif
|
||||
|
||||
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Reference in New Issue
Block a user