12bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg/*===-- disassemble.c - tool for testing libLLVM and llvm-c API -----------===*\ 22bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* *| 32bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* The LLVM Compiler Infrastructure *| 42bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* *| 52bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* This file is distributed under the University of Illinois Open Source *| 62bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* License. See LICENSE.TXT for details. *| 72bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* *| 82bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|*===----------------------------------------------------------------------===*| 92bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* *| 102bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* This file implements the --disassemble command in llvm-c-test. *| 112bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* --disassemble reads lines from stdin, parses them as a triple and hex *| 122bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* machine code, and prints disassembly of the machine code. *| 132bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg|* *| 142bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg\*===----------------------------------------------------------------------===*/ 152bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 162bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg#include "llvm-c-test.h" 172bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg#include "llvm-c/Disassembler.h" 182bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg#include "llvm-c/Target.h" 192bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg#include <stdio.h> 202bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg#include <stdlib.h> 212bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 222bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborgstatic void pprint(int pos, unsigned char *buf, int len, const char *disasm) { 2390fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi int i; 242bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf("%04x: ", pos); 2590fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi for (i = 0; i < 8; i++) { 262bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg if (i < len) { 272bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf("%02x ", buf[i]); 282bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } else { 292bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf(" "); 302bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 312bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 322bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 332bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf(" %s\n", disasm); 342bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg} 352bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 362bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborgstatic void do_disassemble(const char *triple, unsigned char *buf, int siz) { 372bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg LLVMDisasmContextRef D = LLVMCreateDisasm(triple, NULL, 0, NULL, NULL); 3890fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi char outline[1024]; 3990fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi int pos; 402bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 412bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg if (!D) { 422bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf("ERROR: Couldn't create disassebler for triple %s\n", triple); 432bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg return; 442bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 452bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 4690fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi pos = 0; 472bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg while (pos < siz) { 482bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg size_t l = LLVMDisasmInstruction(D, buf + pos, siz - pos, 0, outline, 492bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg sizeof(outline)); 502bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg if (!l) { 512bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg pprint(pos, buf + pos, 1, "\t???"); 522bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg pos++; 532bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } else { 542bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg pprint(pos, buf + pos, l, outline); 552bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg pos += l; 562bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 572bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 582bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 592bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg LLVMDisasmDispose(D); 602bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg} 612bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 622bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborgstatic void handle_line(char **tokens, int ntokens) { 632bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg unsigned char disbuf[128]; 642bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg size_t disbuflen = 0; 652bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg char *triple = tokens[0]; 6690fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi int i; 672bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 682bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg printf("triple: %s\n", triple); 692bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 7090fd79a222652126ee7d85f3afb2cd85aa51b2f9NAKAMURA Takumi for (i = 1; i < ntokens; i++) { 712bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg disbuf[disbuflen++] = strtol(tokens[i], NULL, 16); 722bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg if (disbuflen >= sizeof(disbuf)) { 732bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg fprintf(stderr, "Warning: Too long line, truncating\n"); 742bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg break; 752bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 762bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg } 772bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg do_disassemble(triple, disbuf, disbuflen); 782bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg} 792bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 802bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborgint disassemble(void) { 812bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg LLVMInitializeAllTargetInfos(); 822bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg LLVMInitializeAllTargetMCs(); 832bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg LLVMInitializeAllDisassemblers(); 842bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 852bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg tokenize_stdin(handle_line); 862bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg 872bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg return 0; 882bef1a6b25d938210547cd0f5ba4a08abdad2583Anders Waldenborg} 89