tools/llvm-c-test/object.c

   1 /*===-- object.c - tool for testing libLLVM and llvm-c API ----------------===*\
   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 implements the --object-list-sections and --object-list-symbols  *|
  11 |* commands in llvm-c-test.                                                   *|
  12 |*                                                                            *|
  13 \*===----------------------------------------------------------------------===*/
  14
  15 #include "llvm-c-test.h"
  16 #include "llvm-c/Object.h"
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19
  20 int object_list_sections(void) {
  21   LLVMMemoryBufferRef MB;
  22   LLVMObjectFileRef O;
  23   char *msg = NULL;
  24
  25   if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
  26     fprintf(stderr, "Error reading file: %s\n", msg);
  27     exit(1);
  28   }
  29
  30   O = LLVMCreateObjectFile(MB);
  31   if (!O) {
  32     fprintf(stderr, "Error reading object\n");
  33     exit(1);
  34   }
  35
  36   LLVMSectionIteratorRef sect = LLVMGetSections(O);
  37   while (!LLVMIsSectionIteratorAtEnd(O, sect)) {
  38     printf("'%s': @0x%08" PRIx64 " +%" PRIu64 "\n", LLVMGetSectionName(sect),
  39            LLVMGetSectionAddress(sect), LLVMGetSectionSize(sect));
  40
  41     LLVMMoveToNextSection(sect);
  42   }
  43
  44   LLVMDisposeSectionIterator(sect);
  45
  46   LLVMDisposeObjectFile(O);
  47
  48   return 0;
  49 }
  50
  51 int object_list_symbols(void) {
  52   LLVMMemoryBufferRef MB;
  53   LLVMObjectFileRef O;
  54   char *msg = NULL;
  55
  56   if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
  57     fprintf(stderr, "Error reading file: %s\n", msg);
  58     exit(1);
  59   }
  60
  61   O = LLVMCreateObjectFile(MB);
  62   if (!O) {
  63     fprintf(stderr, "Error reading object\n");
  64     exit(1);
  65   }
  66
  67   LLVMSectionIteratorRef sect = LLVMGetSections(O);
  68   LLVMSymbolIteratorRef sym = LLVMGetSymbols(O);
  69   while (!LLVMIsSymbolIteratorAtEnd(O, sym)) {
  70
  71     LLVMMoveToContainingSection(sect, sym);
  72     printf("%s @0x%08" PRIx64 "/0x%08" PRIx64 " +%" PRIu64 " (%s)\n",
  73            LLVMGetSymbolName(sym), LLVMGetSymbolAddress(sym),
  74            LLVMGetSymbolFileOffset(sym), LLVMGetSymbolSize(sym),
  75            LLVMGetSectionName(sect));
  76
  77     LLVMMoveToNextSymbol(sym);
  78   }
  79
  80   LLVMDisposeSymbolIterator(sym);
  81
  82   LLVMDisposeObjectFile(O);
  83
  84   return 0;
  85 }