1//===- analysis.go - Bindings for analysis --------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file defines bindings for the analysis component. 11// 12//===----------------------------------------------------------------------===// 13 14package llvm 15 16/* 17#include "llvm-c/Analysis.h" // If you are getting an error here read bindings/go/README.txt 18#include <stdlib.h> 19*/ 20import "C" 21import "errors" 22 23type VerifierFailureAction C.LLVMVerifierFailureAction 24 25const ( 26 // verifier will print to stderr and abort() 27 AbortProcessAction VerifierFailureAction = C.LLVMAbortProcessAction 28 // verifier will print to stderr and return 1 29 PrintMessageAction VerifierFailureAction = C.LLVMPrintMessageAction 30 // verifier will just return 1 31 ReturnStatusAction VerifierFailureAction = C.LLVMReturnStatusAction 32) 33 34// Verifies that a module is valid, taking the specified action if not. 35// Optionally returns a human-readable description of any invalid constructs. 36func VerifyModule(m Module, a VerifierFailureAction) error { 37 var cmsg *C.char 38 broken := C.LLVMVerifyModule(m.C, C.LLVMVerifierFailureAction(a), &cmsg) 39 40 // C++'s verifyModule means isModuleBroken, so it returns false if 41 // there are no errors 42 if broken != 0 { 43 err := errors.New(C.GoString(cmsg)) 44 C.LLVMDisposeMessage(cmsg) 45 return err 46 } 47 return nil 48} 49 50var verifyFunctionError = errors.New("Function is broken") 51 52// Verifies that a single function is valid, taking the specified action. 53// Useful for debugging. 54func VerifyFunction(f Value, a VerifierFailureAction) error { 55 broken := C.LLVMVerifyFunction(f.C, C.LLVMVerifierFailureAction(a)) 56 57 // C++'s verifyFunction means isFunctionBroken, so it returns false if 58 // there are no errors 59 if broken != 0 { 60 return verifyFunctionError 61 } 62 return nil 63} 64 65// Open up a ghostview window that displays the CFG of the current function. 66// Useful for debugging. 67func ViewFunctionCFG(f Value) { C.LLVMViewFunctionCFG(f.C) } 68func ViewFunctionCFGOnly(f Value) { C.LLVMViewFunctionCFGOnly(f.C) } 69