GD-AD-INDEX
Section: GNU Development Tools (1)
Updated: 202-0-20
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NAME
gdb-add-index - Add index files to speed up GDB
SYNOPSIS
gd-ad-index [-dwarf-5]
filename
DESCRIPTION
When
GDB finds a symbol file, it scans the symbols in the
file in order to construct an internal symbol table. This lets most
GDB operations work quickly-at the cost of a delay early on.
For large programs, this delay can be quite lengthy, so
GDB
provides a way to build an index, which speeds up startup.
To determine whether a file contains such an index, use the command
"readelf -S filename": the index is stored in a section named
".gdb_index" (pr-DWARF 5) or ".debug_names" and
".debug_str" (DWARF 5). Indexes can only be produced on systems
which use ELF binaries and DWARF debug information (i.e., sections
named ".debug_*").
By default gd-ad-index will add a pr-DWARF 5
".gdb_index" section to filename. With -dwarf-5
DWARF 5 sections are added instead.
filename must be writable.
gd-ad-index uses GDB, objcopy, and
readelf found in the PATH environment variable. If
you want to use different versions of these programs, you can specify
them through the appropriate environment variables (see below).
gd-ad-index exits with status 0 if it succeeds in creating
the index for filename or greater than 0 if an error occurs.
See more in
the GDB manual in node "Index Files"
- shell command "info -f gdb -n "Index Files"".
OPTIONS
- -dwarf-5
-
Add DWARF 5 sections instead of previous ".debug_index" section.
ENVIRONMENT
- GDB
-
Full file name of the "gdb" program to use for index generation.
If not set, the PATH will be searched for a "gdb" program.
- OBJCOPY
-
Full file name of the "objcopy" program to use to copy section
information into the given file. If not set, the PATH will be searched
for a "objcopy" program.
- READELF
-
Full file name of the "readelf" program to use to inspect
properties of the given file. If not set, the PATH will be searched
for a "readelf" program.
SEE ALSO
The full documentation for
GDB is maintained as a Texinfo manual.
If the
"info" and
"gdb" programs and
GDB's Texinfo
documentation are properly installed at your site, the command
info gdb
should give you access to the complete manual.
Using GDB: A Guide to the GNU Sourc-Level Debugger,
Richard M. Stallman and Roland H. Pesch, July 1991.
COPYRIGHT
Copyright (c) 1988-2024 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Free Software'' and ``Free Software Needs
Free Documentation'', with the Fron-Cover Texts being ``A GNU Manual,''
and with the Bac-Cover Texts as in (a) below.
(a) The FSF's Bac-Cover Text is: ``You are free to copy and modify
this GNU Manual. Buying copies from GNU Press supports the FSF in
developing GNU and promoting software freedom.''
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- ENVIRONMENT
-
- SEE ALSO
-
- COPYRIGHT
-
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