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llvm-mirror/docs/CommandGuide/dsymutil.rst
Jonas Devlieghere c0997f81d5 [dsymutil] Upstream emitting of papertrail warnings.
When running dsymutil as part of your build system, it can be desirable
for warnings to be part of the end product, rather than just being
emitted to the output stream. This patch upstreams that functionality.

Differential revision: https://reviews.llvm.org/D44639

llvm-svn: 328965
2018-04-02 10:40:43 +00:00

116 lines
3.4 KiB
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dsymutil - manipulate archived DWARF debug symbol files
=======================================================
SYNOPSIS
--------
| :program:`dsymutil` [*options*] *executable*
DESCRIPTION
-----------
:program:`dsymutil` links the DWARF debug information found in the object files
for an executable *executable* by using debug symbols information contained in
its symbol table. By default, the linked debug information is placed in a
``.dSYM`` bundle with the same name as the executable.
OPTIONS
-------
.. option:: --arch=<arch>
Link DWARF debug information only for specified CPU architecture types.
Architectures may be specified by name. When using this option, an error will
be returned if any architectures can not be properly linked. This option can
be specified multiple times, once for each desired architecture. All CPU
architectures will be linked by default and any architectures that can't be
properly linked will cause :program:`dsymutil` to return an error.
.. option:: --dump-debug-map
Dump the *executable*'s debug-map (the list of the object files containing the
debug information) in YAML format and exit. Not DWARF link will take place.
.. option:: -f, --flat
Produce a flat dSYM file. A ``.dwarf`` extension will be appended to the
executable name unless the output file is specified using the -o option.
.. option:: -z, --minimize
When used when creating a dSYM file, this option will suppress the emission of
the .debug_inlines, .debug_pubnames, and .debug_pubtypes sections since
dsymutil currently has better equivalents: .apple_names and .apple_types. When
used in conjunction with --update option, this option will cause redundant
accelerator tables to be removed.
.. option:: --no-odr
Do not use ODR (One Definition Rule) for uniquing C++ types.
.. option:: --no-output
Do the link in memory, but do not emit the result file.
.. option:: --no-swiftmodule-timestamp
Don't check the timestamp for swiftmodule files.
.. option:: -j <n>, --num-threads=<n>
Specifies the maximum number (``n``) of simultaneous threads to use when
linking multiple architectures.
.. option:: -o <filename>
Specifies an alternate ``path`` to place the dSYM bundle. The default dSYM
bundle path is created by appending ``.dSYM`` to the executable name.
.. option:: --oso-prepend-path=<path>
Specifies a ``path`` to prepend to all debug symbol object file paths.
.. option:: --papertrail
When running dsymutil as part of your build system, it can be desirable for
warnings to be part of the end product, rather than just being emitted to the
output stream. When enabled warnings are embedded in the linked DWARF debug
information.
.. option:: -s, --symtab
Dumps the symbol table found in *executable* or object file(s) and exits.
.. option:: --toolchain
Embed the toolchain in the dSYM bundle's property list.
.. option:: -u, --update
Update an existing dSYM file to contain the latest accelerator tables and
other DWARF optimizations. This option will rebuild the '.apple_names' and
'.apple_types' hashed accelerator tables.
.. option:: -v, --verbose
Display verbose information when linking.
.. option:: --version
Display the version of the tool.
.. option:: -y
Treat *executable* as a YAML debug-map rather than an executable.
EXIT STATUS
-----------
:program:`dsymutil` returns 0 if the DWARF debug information was linked
successfully. Otherwise, it returns 1.
SEE ALSO
--------
:manpage:`llvm-dwarfdump(1)`