feat: added ignored function on profile

analyzer/opcode/opcode.go

@@ -40,6 +40,9 @@ func (op *opcode) Analyze(path string, withTrace bool) ([]*analyzer.Issue, error
 				if err != nil { // non-reachable portion ignored
 					continue
 				}
+				if common.ShouldIgnoreSource(source, op.profile.IgnoredFunctions) {
+					continue
+				}
 				if !withTrace {
 					source.CallStack = nil
 				}

analyzer/syscall/asm_syscall.go

@@ -63,6 +63,10 @@ func (a *asmSyscallAnalyser) Analyze(path string, withTrace bool) ([]*analyzer.I
 				if err != nil { // non-reachable portion ignored
 					continue
 				}
+				if common.ShouldIgnoreSource(source, a.profile.IgnoredFunctions) {
+					continue
+				}
+
 				if !withTrace {
 					source.CallStack = nil
 				}

common/stack_tracer.go

@@ -3,6 +3,7 @@ package common
 import (
 	"fmt"
 	"path/filepath"
+	"slices"
 
 	"github.com/ChainSafe/vm-compat/analyzer"
 	"github.com/ChainSafe/vm-compat/asmparser"
@@ -58,3 +59,13 @@ func TraceAsmCaller(
 	}
 	return src, nil
 }
+
+func ShouldIgnoreSource(callStack *analyzer.CallStack, functions []string) bool {
+	if callStack != nil {
+		if slices.Contains(functions, callStack.Function) {
+			return true
+		}
+		return ShouldIgnoreSource(callStack.CallStack, functions)
+	}
+	return false
+}

profile/cannon/cannon-32.yaml

@@ -2,6 +2,9 @@ vm: Cannon
 goos: linux
 goarch: mips
 ignored_functions:
+  - 'syscall.setrlimit'
+  - 'runtime.morestack'
+  - 'runtime.abort'
 
 allowed_opcodes:
   - opcode: '0x2'

profile/cannon/cannon-64.yaml

@@ -2,6 +2,9 @@ vm: Cannon
 goos: linux
 goarch: mips64
 ignored_functions:
+  - 'syscall.setrlimit'
+  - 'runtime.morestack'
+  - 'runtime.abort'
 
 allowed_opcodes:
   - opcode: '0x2'

profile/profile.go

@@ -16,12 +16,13 @@ type OpcodeInstruction struct {
 
 // VMProfile represents the configuration for a specific VM.
 type VMProfile struct {
-	VMName         string              `yaml:"vm"`
-	GOOS           string              `yaml:"goos"`
-	GOARCH         string              `yaml:"goarch"`
-	AllowedOpcodes []OpcodeInstruction `yaml:"allowed_opcodes"`
-	AllowedSycalls []int               `yaml:"allowed_syscalls"`
-	NOOPSyscalls   []int               `yaml:"noop_syscalls"`
+	VMName           string              `yaml:"vm"`
+	GOOS             string              `yaml:"goos"`
+	GOARCH           string              `yaml:"goarch"`
+	AllowedOpcodes   []OpcodeInstruction `yaml:"allowed_opcodes"`
+	AllowedSycalls   []int               `yaml:"allowed_syscalls"`
+	NOOPSyscalls     []int               `yaml:"noop_syscalls"`
+	IgnoredFunctions []string            `yaml:"ignored_functions"`
 }
 
 func (p *VMProfile) SetDefaults() {

profile/readme.md

@@ -12,7 +12,10 @@ A VM profile consists of the following fields:
 - `allowed_opcodes`: List of permitted opcodes with optional function values.
 - `allowed_syscalls`: List of system calls allowed by the VM.
 - `noop_syscalls`: List of system calls treated as no-ops by the VM.
-- `ignored_functions`: List of functions or blocks disabled on the VM (e.g., due to multithreading restrictions).
+- `ignored_functions`: List of functions or blocks disabled on the VM due to they might never be called in usual scenarios.
+  Example:
+    - 'syscall.setrlimit': Only executed in certain condition that doesn't meet with cannon, https://go.dev/src/syscall/rlimit.go
+    - 'runtime.morestack': Should execute in case of stack overflow, but not in usual case.
 
 ## Getting Opcode and Syscall Information
 Determining the correct opcodes and syscalls for a VM requires extensive research on the targeted VM