1 /*===-- disassemble.c - tool for testing libLLVM and llvm-c API -----------===*\
3 |* The LLVM Compiler Infrastructure *|
5 |* This file is distributed under the University of Illinois Open Source *|
6 |* License. See LICENSE.TXT for details. *|
8 |*===----------------------------------------------------------------------===*|
10 |* This file implements the --disassemble command in llvm-c-test. *|
11 |* --disassemble reads lines from stdin, parses them as a triple and hex *|
12 |* machine code, and prints disassembly of the machine code. *|
14 \*===----------------------------------------------------------------------===*/
16 #include "llvm-c-test.h"
17 #include "llvm-c/Disassembler.h"
18 #include "llvm-c/Target.h"
22 static void pprint(int pos, unsigned char *buf, int len, const char *disasm) {
23 printf("%04x: ", pos);
24 for (int i = 0; i < 8; i++) {
26 printf("%02x ", buf[i]);
32 printf(" %s\n", disasm);
35 static void do_disassemble(const char *triple, unsigned char *buf, int siz) {
36 LLVMDisasmContextRef D = LLVMCreateDisasm(triple, NULL, 0, NULL, NULL);
39 printf("ERROR: Couldn't create disassebler for triple %s\n", triple);
46 size_t l = LLVMDisasmInstruction(D, buf + pos, siz - pos, 0, outline,
49 pprint(pos, buf + pos, 1, "\t???");
52 pprint(pos, buf + pos, l, outline);
60 static void handle_line(char **tokens, int ntokens) {
61 unsigned char disbuf[128];
63 char *triple = tokens[0];
65 printf("triple: %s\n", triple);
67 for (int i = 1; i < ntokens; i++) {
68 disbuf[disbuflen++] = strtol(tokens[i], NULL, 16);
69 if (disbuflen >= sizeof(disbuf)) {
70 fprintf(stderr, "Warning: Too long line, truncating\n");
74 do_disassemble(triple, disbuf, disbuflen);
77 int disassemble(void) {
78 LLVMInitializeAllTargetInfos();
79 LLVMInitializeAllTargetMCs();
80 LLVMInitializeAllDisassemblers();
82 tokenize_stdin(handle_line);