add rkprobes to probe function and instructions,change parameter of trap_handler, update rust-toolchain

kernel/Cargo.lock

@@ -514,6 +514,7 @@ dependencies = [
  "rcore-fs-sfs",
  "rcore-memory",
  "riscv",
+ "rkprobes",
  "rlibc",
  "rvm",
  "smoltcp",
@@ -642,6 +643,12 @@ dependencies = [
  "riscv-target",
 ]
 
+[[package]]
+name = "riscv-decode"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "920466101a1ec4ffac2ab9b72fa780eff62defa0ae9c4f77a07fa41dfd5450e6"
+
 [[package]]
 name = "riscv-target"
 version = "0.1.2"
@@ -652,6 +659,18 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "rkprobes"
+version = "0.1.0"
+source = "git+https://github.com/hm1229/rkprobes?rev=d6e0f96#d6e0f962618329315f7806cec66f2891822e8999"
+dependencies = [
+ "lazy_static",
+ "log",
+ "riscv-decode",
+ "spin",
+ "trapframe",
+]
+
 [[package]]
 name = "rlibc"
 version = "1.0.0"

kernel/Cargo.toml

@@ -90,6 +90,7 @@ x86_64 = "0.11"
 
 [target.'cfg(any(target_arch = "riscv32", target_arch = "riscv64"))'.dependencies]
 riscv = { git = "https://github.com/rcore-riscv-hypervisor-dev/riscv" , rev = "3f5efb1", features = ["inline-asm", "hypervisor"] }
+rkprobes = { git = "https://github.com/hm1229/rkprobes", rev = "d6e0f96" }
 
 [target.'cfg(target_arch = "aarch64")'.dependencies]
 aarch64 = { git = "https://github.com/rcore-os/aarch64", version = "3.0.1" }

kernel/src/arch/riscv/interrupt/mod.rs

@@ -36,12 +36,12 @@ pub unsafe fn restore(flags: usize) {
 /// This function is called from `trap.asm`.
 #[no_mangle]
 pub extern "C" fn trap_handler(tf: &mut TrapFrame) {
-    trap_handler_no_frame(&mut tf.sepc);
+    trap_handler_no_frame(tf);
 }
 
 use crate::memory::AccessType;
 #[inline]
-pub fn trap_handler_no_frame(sepc: &mut usize) {
+pub fn trap_handler_no_frame(tf: &mut TrapFrame) {
     use self::scause::{Exception as E, Interrupt as I, Trap};
     let scause = scause::read();
     let stval = stval::read();
@@ -51,11 +51,12 @@ pub fn trap_handler_no_frame(sepc: &mut usize) {
         Trap::Interrupt(I::SupervisorExternal) => external(),
         Trap::Interrupt(I::SupervisorSoft) => ipi(),
         Trap::Interrupt(I::SupervisorTimer) => timer(),
-        Trap::Exception(E::LoadPageFault) => page_fault(stval, sepc, AccessType::read(is_user)),
-        Trap::Exception(E::StorePageFault) => page_fault(stval, sepc, AccessType::write(is_user)),
+        Trap::Exception(E::LoadPageFault) => page_fault(stval, &mut tf.sepc, AccessType::read(is_user)),
+        Trap::Exception(E::StorePageFault) => page_fault(stval, &mut tf.sepc, AccessType::write(is_user)),
         Trap::Exception(E::InstructionPageFault) => {
-            page_fault(stval, sepc, AccessType::execute(is_user))
+            page_fault(stval, &mut tf.sepc, AccessType::execute(is_user))
         }
+        Trap::Exception(E::Breakpoint) => rkprobes::kprobes_trap_handler(tf),
         _ => {
             let bits = scause.bits();
             panic!("unhandled trap {:?} ({})", scause.cause(), bits);

kernel/src/lib.rs

@@ -8,7 +8,6 @@
 #![feature(negative_impls)]
 #![feature(alloc_prelude)]
 #![feature(const_fn)]
-#![feature(const_if_match)]
 #![feature(const_in_array_repeat_expressions)]
 #![deny(unused_must_use)]
 #![deny(stable_features)]