feat: update to new backtrace lib (#1049)

* feat: update to new backtrace lib

* feat: enable unwind for riscv64

---------

Co-authored-by: longjin <longjin@DragonOS.org>

kernel/src/arch/riscv64/link.ld

@@ -28,6 +28,7 @@ SECTIONS
 
 	. = ALIGN(4096);
 	text_start_pa = .;
+	__executable_start = .;
 	.text (text_start_pa): AT(text_start_pa - KERNEL_VMA)
 	{
 		_text = .;
@@ -39,6 +40,7 @@ SECTIONS
 		*(.text.*)
 
 		_etext = .;
+		__etext = .;
 	}
 	. = ALIGN(32768);
 	data_start_pa = .;

kernel/src/arch/riscv64/riscv64gc-unknown-none-elf.json

@@ -0,0 +1,28 @@
+{
+  "arch": "riscv64",
+  "code-model": "medium",
+  "cpu": "generic-rv64",
+  "crt-objects-fallback": "false",
+  "data-layout": "e-m:e-p:64:64-i64:64-i128:128-n32:64-S128",
+  "eh-frame-header": false,
+  "emit-debug-gdb-scripts": false,
+  "features": "+m,+a,+f,+d,+c",
+  "linker": "rust-lld",
+  "linker-flavor": "gnu-lld",
+  "llvm-abiname": "lp64d",
+  "llvm-target": "riscv64",
+  "max-atomic-width": 64,
+  "metadata": {
+    "description": "Bare RISC-V (RV64IMAFDC ISA)",
+    "host_tools": false,
+    "std": false,
+    "tier": 2
+  },
+  "panic-strategy": "unwind",
+  "relocation-model": "static",
+  "supported-sanitizers": [
+    "shadow-call-stack",
+    "kernel-address"
+  ],
+  "target-pointer-width": "64"
+}

kernel/src/arch/riscv64/syscall/mod.rs

@@ -36,7 +36,8 @@ pub(super) fn syscall_handler(syscall_num: usize, frame: &mut TrapFrame) -> () {
 
     let args = [frame.a0, frame.a1, frame.a2, frame.a3, frame.a4, frame.a5];
     syscall_return!(
-        Syscall::handle(syscall_num, &args, frame).unwrap_or_else(|e| e.to_posix_errno() as usize),
+        Syscall::catch_handle(syscall_num, &args, frame)
+            .unwrap_or_else(|e| e.to_posix_errno() as usize),
         frame,
         false
     );

kernel/src/arch/x86_64/link.lds

@@ -26,6 +26,7 @@ SECTIONS
 	. = ALIGN(32768);
 	. += KERNEL_VMA;
 	text_start_pa = .;
+	__executable_start = .;
 	.text (text_start_pa): AT(text_start_pa - KERNEL_VMA)
 	{
 		_text = .;
@@ -37,6 +38,7 @@ SECTIONS
 		*(.text.*)
 
 		_etext = .;
+		__etext = .;
 	}
 	. = ALIGN(32768);
 	data_start_pa = .;

kernel/src/arch/x86_64/syscall/mod.rs

@@ -118,8 +118,8 @@ pub extern "sysv64" fn syscall_handler(frame: &mut TrapFrame) {
         _ => {}
     }
     syscall_return!(
-        Syscall::handle(syscall_num, &args, frame).unwrap_or_else(|e| e.to_posix_errno() as usize)
-            as u64,
+        Syscall::catch_handle(syscall_num, &args, frame)
+            .unwrap_or_else(|e| e.to_posix_errno() as usize) as u64,
         frame,
         show
     );

kernel/src/arch/x86_64/x86_64-unknown-none.json

@@ -11,5 +11,5 @@
   "executables": true,
   "features": "-mmx,-sse,+soft-float",
   "disable-redzone": true,
-  "panic-strategy": "abort"
+  "panic-strategy": "unwind"
 }