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      1 /* Copyright (C) 2007-2010 The Android Open Source Project
      2 **
      3 ** This software is licensed under the terms of the GNU General Public
      4 ** License version 2, as published by the Free Software Foundation, and
      5 ** may be copied, distributed, and modified under those terms.
      6 **
      7 ** This program is distributed in the hope that it will be useful,
      8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
      9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     10 ** GNU General Public License for more details.
     11 */
     12 
     13 /*
     14  * Contains implementation of routines that encapsulte an API for parsing
     15  * an ELF file containing debugging information in DWARF format.
     16  */
     17 
     18 #include "elff_api.h"
     19 #include "elf_file.h"
     20 #include "dwarf_defs.h"
     21 
     22 #ifdef __cplusplus
     23 extern "C" {
     24 #endif
     25 
     26 ELFF_HANDLE
     27 elff_init(const char* elf_file_path)
     28 {
     29   ElfFile* elf_file = ElfFile::Create(elf_file_path);
     30   return reinterpret_cast<ELFF_HANDLE>(elf_file);
     31 }
     32 
     33 void
     34 elff_close(ELFF_HANDLE handle)
     35 {
     36   if (handle != NULL) {
     37     delete reinterpret_cast<ElfFile*>(handle);
     38   }
     39 }
     40 
     41 int
     42 elff_is_exec(ELFF_HANDLE handle)
     43 {
     44   assert(handle != NULL);
     45   if (handle == NULL) {
     46     _set_errno(EINVAL);
     47     return -1;
     48   }
     49   return reinterpret_cast<ElfFile*>(handle)->is_exec();
     50 }
     51 
     52 int
     53 elff_get_pc_address_info(ELFF_HANDLE handle,
     54                          uint64_t address,
     55                          Elf_AddressInfo* address_info)
     56 {
     57   assert(handle != NULL && address_info != NULL);
     58   if (handle == NULL || address_info == NULL) {
     59     _set_errno(EINVAL);
     60     return -1;
     61   }
     62 
     63   if (reinterpret_cast<ElfFile*>(handle)->get_pc_address_info(address,
     64                                                               address_info)) {
     65     return 0;
     66   } else {
     67     return -1;
     68   }
     69 }
     70 
     71 void
     72 elff_free_pc_address_info(ELFF_HANDLE handle, Elf_AddressInfo* address_info)
     73 {
     74   assert(handle != NULL && address_info != NULL);
     75   if (handle == NULL || address_info == NULL) {
     76     return;
     77   }
     78   reinterpret_cast<ElfFile*>(handle)->free_pc_address_info(address_info);
     79 }
     80 
     81 #ifdef __cplusplus
     82 }   /* end of extern "C" */
     83 #endif
     84 
     85