parent
29d6d26644
commit
6f09af2c0f
@ -0,0 +1,29 @@
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use bitflags::*;
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bitflags! {
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pub struct SignalFlags: u32 {
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const SIGINT = 1 << 2;
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const SIGILL = 1 << 4;
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const SIGABRT = 1 << 6;
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const SIGFPE = 1 << 8;
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const SIGSEGV = 1 << 11;
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}
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}
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impl SignalFlags {
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pub fn check_error(&self) -> Option<(i32, &'static str)> {
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if self.contains(Self::SIGINT) {
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Some((-2, "Killed, SIGINT=2"))
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} else if self.contains(Self::SIGILL) {
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Some((-4, "Illegal Instruction, SIGILL=4"))
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} else if self.contains(Self::SIGABRT) {
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Some((-6, "Aborted, SIGABRT=6"))
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} else if self.contains(Self::SIGFPE) {
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Some((-8, "Erroneous Arithmetic Operation, SIGFPE=8"))
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} else if self.contains(Self::SIGSEGV) {
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Some((-11, "Segmentation Fault, SIGSEGV=11"))
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} else {
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None
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}
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}
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}
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@ -0,0 +1,10 @@
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#![no_std]
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#![no_main]
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#![allow(clippy::empty_loop)]
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extern crate user_lib;
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#[no_mangle]
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pub fn main(_argc: usize, _argv: &[&str]) -> ! {
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loop {}
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}
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#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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use riscv::register::sstatus::{self, SPP};
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#[no_mangle]
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fn main() -> i32 {
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println!("Try to access privileged CSR in U Mode");
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println!("Kernel should kill this application!");
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unsafe {
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sstatus::set_spp(SPP::User);
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}
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0
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}
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#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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use core::arch::asm;
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#[no_mangle]
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fn main() -> i32 {
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println!("Try to execute privileged instruction in U Mode");
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println!("Kernel should kill this application!");
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unsafe {
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asm!("sret");
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}
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0
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}
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#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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#[no_mangle]
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fn main() -> i32 {
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println!("Into Test store_fault, we will insert an invalid store operation...");
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println!("Kernel should kill this application!");
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unsafe {
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core::ptr::null_mut::<u8>().write_volatile(0);
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}
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0
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}
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@ -0,0 +1,46 @@
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#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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use user_lib::{exec, fork, get_time, kill, waitpid, waitpid_nb, SignalFlags};
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#[no_mangle]
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pub fn main(argc: usize, argv: &[&str]) -> i32 {
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assert_eq!(argc, 3, "argc must be 3!");
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let timeout_ms = argv[2]
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.parse::<isize>()
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.expect("Error when parsing timeout!");
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let pid = fork() as usize;
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if pid == 0 {
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if exec(argv[1], &[core::ptr::null::<u8>()]) != 0 {
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println!("Error when executing '{}'", argv[1]);
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return -4;
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}
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} else {
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let start_time = get_time();
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let mut child_exited = false;
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let mut exit_code: i32 = 0;
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loop {
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if get_time() - start_time > timeout_ms {
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break;
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}
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if waitpid_nb(pid, &mut exit_code) as usize == pid {
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child_exited = true;
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println!(
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"child exited in {}ms, exit_code = {}",
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get_time() - start_time,
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exit_code,
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);
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}
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}
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if !child_exited {
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println!("child has run for {}ms, kill it!", timeout_ms);
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kill(pid, SignalFlags::SIGINT.bits());
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assert_eq!(waitpid(pid, &mut exit_code) as usize, pid);
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println!("exit code of the child is {}", exit_code);
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}
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}
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0
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}
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Loading…
Reference in new issue