xv6_launch.json

{
    "version": "0.2.0",
    "configurations": [      
        {
            "type": "gdb",
            "request": "attach",
            "name": "Attach to Qemu",
            "autorun": ["add-symbol-file ${workspaceFolder}/kernel/kernel"],
            "target": ":1234",
            "remote": true,
            "cwd": "${workspaceFolder}",
            "valuesFormatting": "parseText",
            "gdbpath": "riscv64-unknown-elf-gdb",
            "showDevDebugOutput":true,
            "internalConsoleOptions": "openOnSessionStart",
            "printCalls": true,
            "stopAtConnect": true,
            //"debugServer": 4711,//tiaoshi
            "qemuPath": "qemu-system-riscv64",
            "qemuArgs": [
                "-machine", "virt", "-bios", "none",
                "-kernel", "${workspaceFolder}/kernel/kernel",
                "-m", "128M", "-smp", "2", "-nographic",
                "-global", "virtio-mmio.force-legacy=false",
                "-drive", "file=${workspaceFolder}/fs.img,if=none,format=raw,id=x0",
                "-device", "virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0",
                
                "-s", "-S"
            ],
            "program_counter_id": 32,
            "first_breakpoint_group": "kernel",
            "second_breakpoint_group":"${workspaceFolder}/user/init.c",
            "kernel_memory_ranges":[["0x80000000","0xffffffffffffffff"]],
            "user_memory_ranges":[["0x0000000000000000","0x80000000"]],
            "border_breakpoints":[
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":6
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":11
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":16
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":21
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":26
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":31
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":36
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":41
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":46
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":51
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":56
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":61
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":66
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":71
                },{
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":76
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":81
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":86
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":91
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":96
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":101
                },
                {
                    "filepath": "${workspaceFolder}/user/usys.S",
                    "line":106
                },
                {
                    "filepath": "${workspaceFolder}/kernel/trap.c",
                    "line":129
                }
            ],
            "hook_breakpoints":[
                {
                    "breakpoint": {
                        "file": "${workspaceFolder}/kernel/sysfile.c",
                        "line": 464
                    },
                    "behavior": {
                        "isAsync": true,
                        "functionArguments": "",
                        "functionBody": "let p=await this.getStringVariable('path'); return '${workspaceFolder}/user/'+p+'.c' "
                    }
                }
            ],
           "filePathToBreakpointGroupNames": {
                "isAsync": false,
                "functionArguments": "filePathStr",
                "functionBody": "if (filePathStr.includes('kernel')) { return ['kernel']; } else if (filePathStr === '${workspaceFolder}/user/usys.S') { return ['${workspaceFolder}/user/ln.c', '${workspaceFolder}/user/ls.c', '${workspaceFolder}/user/rm.c', '${workspaceFolder}/user/sh.c', '${workspaceFolder}/user/wc.c', '${workspaceFolder}/user/cat.c', '${workspaceFolder}/user/echo.c', '${workspaceFolder}/user/grep.c', '${workspaceFolder}/user/init.c', '${workspaceFolder}/user/kill.c', '${workspaceFolder}/user/ulib.c', '${workspaceFolder}/user/grind.c', '${workspaceFolder}/user/mkdir.c', '${workspaceFolder}/user/printf.c', '${workspaceFolder}/user/zombie.c', '${workspaceFolder}/user/umalloc.c', '${workspaceFolder}/user/forktest.c', '${workspaceFolder}/user/stressfs.c', '${workspaceFolder}/user/usertests.c']; } else if (filePathStr.includes('user') && filePathStr !== '${workspaceFolder}/user/usys.S') { return [filePathStr]; } else { return ['kernel']; }"
            },
            "breakpointGroupNameToDebugFilePaths":{
                "isAsync": false,
                "functionArguments": "groupName",
                "functionBody": "if (groupName === 'kernel') {        return ['${workspaceFolder}/kernel/kernel'];    }    else {        let pathSplited = groupName.split('/');            let filename = pathSplited[pathSplited.length - 1].split('.');         let filenameWithoutExtension = filename[filename.length - 2];        return ['${workspaceFolder}/user/' + '_' + filenameWithoutExtension];    }"
            }
        }
    ]
}