gdb/debuginfod-support.h

   1 /* debuginfod utilities for GDB.
   2    Copyright (C) 2020-2023 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef DEBUGINFOD_SUPPORT_H
  20 #define DEBUGINFOD_SUPPORT_H
  21
  22 #include "gdbsupport/scoped_fd.h"
  23
  24 /* Query debuginfod servers for a source file associated with an
  25    executable with BUILD_ID.  BUILD_ID can be given as a binary blob or
  26    a null-terminated string.  If given as a binary blob, BUILD_ID_LEN
  27    should be the number of bytes.  If given as a null-terminated string,
  28    BUILD_ID_LEN should be 0.
  29
  30    SRC_PATH should be the source file's absolute path that includes the
  31    compilation directory of the CU associated with the source file.
  32    For example if a CU's compilation directory is `/my/build` and the
  33    source file path is `/my/source/foo.c`, then SRC_PATH should be
  34    `/my/build/../source/foo.c`.
  35
  36    If the file is successfully retrieved, return a file descriptor and store
  37    the file's local path in DESTNAME.  If unsuccessful, print an error message
  38    and return a negative errno.  If GDB is not built with debuginfod, this
  39    function returns -ENOSYS.  */
  40
  41 extern scoped_fd
  42 debuginfod_source_query (const unsigned char *build_id,
  43                          int build_id_len,
  44                          const char *src_path,
  45                          gdb::unique_xmalloc_ptr<char> *destname);
  46
  47 /* Query debuginfod servers for a debug info file with BUILD_ID.
  48    BUILD_ID can be given as a binary blob or a null-terminated string.
  49    If given as a binary blob, BUILD_ID_LEN should be the number of bytes.
  50    If given as a null-terminated string, BUILD_ID_LEN should be 0.
  51
  52    FILENAME should be the name or path of the main binary associated with
  53    the separate debug info.  It is used for printing messages to the user.
  54
  55    If the file is successfully retrieved, return a file descriptor and store
  56    the file's local path in DESTNAME.  If unsuccessful, print an error message
  57    and return a negative errno.  If GDB is not built with debuginfod, this
  58    function returns -ENOSYS.  */
  59
  60 extern scoped_fd
  61 debuginfod_debuginfo_query (const unsigned char *build_id,
  62                             int build_id_len,
  63                             const char *filename,
  64                             gdb::unique_xmalloc_ptr<char> *destname);
  65
  66 /* Query debuginfod servers for an executable file with BUILD_ID.
  67    BUILD_ID can be given as a binary blob or a null-terminated string.
  68    If given as a binary blob, BUILD_ID_LEN should be the number of bytes.
  69    If given as a null-terminated string, BUILD_ID_LEN should be 0.
  70
  71    FILENAME should be the name or path associated with the executable.
  72    It is used for printing messages to the user.
  73
  74    If the file is successfully retrieved, return a file descriptor and store
  75    the file's local path in DESTNAME.  If unsuccessful, print an error message
  76    and return a negative errno.  If GDB is not built with debuginfod, this
  77    function returns -ENOSYS.  */
  78
  79 extern scoped_fd debuginfod_exec_query (const unsigned char *build_id,
  80                                         int build_id_len,
  81                                         const char *filename,
  82                                         gdb::unique_xmalloc_ptr<char>
  83                                           *destname);
  84
  85 /* Query debuginfod servers for the binary contents of a ELF/DWARF section
  86    from a file matching BUILD_ID.  BUILD_ID can be given as a binary blob
  87    or a null-terminated string.  If given as a binary blob, BUILD_ID_LEN
  88    should be the number of bytes.  If given as a null-terminated string,
  89    BUILD_ID_LEN should be 0.
  90
  91    FILENAME should be the name or path associated with the file matching
  92    BUILD_ID.  It is used for printing messages to the user.
  93
  94    SECTION_NAME should be the name of an ELF/DWARF section.
  95
  96    If the file is successfully retrieved, return a file descriptor and store
  97    the file's local path in DESTNAME.  If unsuccessful, print an error message
  98    and return a negative errno.  If GDB is not built with debuginfod or
  99    libdebuginfod does not support section queries, this function returns
 100    -ENOSYS.  */
 101
 102 extern scoped_fd debuginfod_section_query (const unsigned char *build_id,
 103                                            int build_id_len,
 104                                            const char *filename,
 105                                            const char *section_name,
 106                                            gdb::unique_xmalloc_ptr<char>
 107                                              *destname);
 108 #endif /* DEBUGINFOD_SUPPORT_H */