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b91f93a02c
Add debuginfod support to core_target::build_file_mappings and locate_exec_from_corefile_build_id to enable the downloading of missing executables and shared libraries referenced in core files. Also add debuginfod support to solib_map_sections so that previously downloaded shared libraries can be retrieved from the local debuginfod cache. When core file shared libraries are found locally, verify that their build-ids match the corresponding build-ids found in the core file. If there is a mismatch, attempt to query debuginfod for the correct build and print a warning if unsuccessful: warning: Build-id of /lib64/libc.so.6 does not match core file. Also disable debuginfod when gcore invokes gdb. Debuginfo is not needed for core file generation so debuginfod queries will slow down gcore unnecessarily.
82 lines
3.3 KiB
C
82 lines
3.3 KiB
C
/* debuginfod utilities for GDB.
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Copyright (C) 2020-2022 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef DEBUGINFOD_SUPPORT_H
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#define DEBUGINFOD_SUPPORT_H
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#include "gdbsupport/scoped_fd.h"
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/* Query debuginfod servers for a source file associated with an
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executable with BUILD_ID. BUILD_ID can be given as a binary blob or
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a null-terminated string. If given as a binary blob, BUILD_ID_LEN
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should be the number of bytes. If given as a null-terminated string,
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BUILD_ID_LEN should be 0.
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SRC_PATH should be the source file's absolute path that includes the
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compilation directory of the CU associated with the source file.
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For example if a CU's compilation directory is `/my/build` and the
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source file path is `/my/source/foo.c`, then SRC_PATH should be
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`/my/build/../source/foo.c`.
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If the file is successfully retrieved, its path on the local machine
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is stored in DESTNAME. If GDB is not built with debuginfod, this
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function returns -ENOSYS. */
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extern scoped_fd
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debuginfod_source_query (const unsigned char *build_id,
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int build_id_len,
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const char *src_path,
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gdb::unique_xmalloc_ptr<char> *destname);
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/* Query debuginfod servers for a debug info file with BUILD_ID.
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BUILD_ID can be given as a binary blob or a null-terminated string.
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If given as a binary blob, BUILD_ID_LEN should be the number of bytes.
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If given as a null-terminated string, BUILD_ID_LEN should be 0.
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FILENAME should be the name or path of the main binary associated with
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the separate debug info. It is used for printing messages to the user.
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If the file is successfully retrieved, its path on the local machine
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is stored in DESTNAME. If GDB is not built with debuginfod, this
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function returns -ENOSYS. */
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extern scoped_fd
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debuginfod_debuginfo_query (const unsigned char *build_id,
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int build_id_len,
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const char *filename,
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gdb::unique_xmalloc_ptr<char> *destname);
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/* Query debuginfod servers for an executable file with BUILD_ID.
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BUILD_ID can be given as a binary blob or a null-terminated string.
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If given as a binary blob, BUILD_ID_LEN should be the number of bytes.
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If given as a null-terminated string, BUILD_ID_LEN should be 0.
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FILENAME should be the name or path associated with the executable.
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It is used for printing messages to the user.
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If the file is successfully retrieved, its path on the local machine
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is stored in DESTNAME. If GDB is not built with debuginfod, this
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function returns -ENOSYS. */
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extern scoped_fd debuginfod_exec_query (const unsigned char *build_id,
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int build_id_len,
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const char *filename,
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gdb::unique_xmalloc_ptr<char>
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*destname);
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#endif /* DEBUGINFOD_SUPPORT_H */
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