Commit Graph

33 Commits

Author SHA1 Message Date
zhijian fd3ba1f862 Title: Export unique symbol list with llvm-nm new option "--export-symbols"
Summary:

the patch implement of following functionality.
1. export the symbols from archive or object files.
2. sort the export symbols. (based on same symbol name and visibility)
3. delete the duplicate export symbols (based on same symbol name and visibility)
4. print out the  unique and sorted export symbols (print the symbol name and visibility).

there are two new options are add in the patch
1. --export-symbols (enable the functionality of export unique symbol)
2. --no-rsrc (exclude the symbol name begin with "__rsrc" from be exporting from xcoff object file)

Export symbol list for xcoff object file has the same functionality as
The patch has the same functionality as
https://www.ibm.com/docs/en/xl-c-aix/13.1.0?topic=library-exporting-symbols-createexportlist-utility

Reviewers: James Henderson,Fangrui Song
Differential Revision: https://reviews.llvm.org/D112735
2022-02-17 11:37:33 -05:00
Kristof Beyls 520a925272 Fix 2 RestructuredText warnings. 2022-02-16 14:16:52 +01:00
zhijian 0135aa7b98 [llvm-nm] add a new option -X to specify the type of object file llvm-nm should examine
Summary:
Added a new option "-X" to specify, which type of object file should be examine.

For example:

1. "llvm-nm -X64 archive.a" only deal with the 64bit object files in the archive.a ,ignore the all 32bit object files in the archive.a
2. "llvm-nm -X32 xcoffobj32.o xcoffobj64.o " only deal with the 32bit object file "xcoffobj32.o" , 64bit object file "xcoffobj64.o" will be ignored

Reviewers: James Henderson,Fangrui Song
Differential Revision: https://reviews.llvm.org/D118193
2022-02-15 09:43:31 -05:00
Fangrui Song cae3b831f4 [llvm-nm] Switch command line parsing from llvm::cl to OptTable
Part of https://lists.llvm.org/pipermail/llvm-dev/2021-July/151622.html
"Binary utilities: switch command line parsing from llvm::cl to OptTable"

Users should generally observe no difference as long as they only use intended
option forms. Behavior changes:

* `-t=d` is removed. Use `-t d` instead.
* `--demangle=0` cannot be used. Omit the option or use `--no-demangle` instead.
* `--help-list` is removed. This is a `cl::` specific option.

Note:

* `-t` diagnostic gets improved.
* This patch avoids cl::opt collision if we decide to support multiplexing for binary utilities
* One-dash long options are still supported.
* The `-s` collision (`-s segment section` for Mach-O) is unfortunate. `-s` means `--print-armap` in GNU nm.
* This patch removes the last `cl::multi_val` use case from the `llvm/lib/Support/CommandLine.cpp` library

`-M` (`--print-armap`), `-U` (`--defined-only`), and `-W` (`--no-weak`)
are now deprecated. They could conflict with future GNU nm options.
(--print-armap has an existing alias -s, so GNU will unlikely add a new one.
--no-weak (not in GNU nm) is rarely used anyway.)

`--just-symbol-name` is now deprecated in favor of
`--format=just-symbols` and `-j`.

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D105330
2021-07-07 13:34:33 -07:00
Martin Storsjö b42fb6811e [llvm-nm] Support the -V option, print that the tool is compatible with GNU nm
This unlocks some codepaths in libtool.

Differential Revision: https://reviews.llvm.org/D102321
2021-05-13 22:36:25 +03:00
Fangrui Song 8fbedb6b90 [llvm-nm] Add --format=just-symbols and make --just-symbol-name its alias
https://sourceware.org/bugzilla/show_bug.cgi?id=27487 binutils will have
--format=just-symbols/-j as well.

Arbitrarily prefer `-j` to `--format=sysv`. Previously `--format=sysv -j` prints
in the sysv format while `-j` takes precedence over other formats.

Differential Revision: https://reviews.llvm.org/D98569
2021-03-16 10:07:01 -07:00
Keith Smiley 64240f8138 llvm-nm: add flag to suppress no symbols warning
This spelling matches binutils https://sourceware.org/bugzilla/show_bug.cgi?id=27408

Differential Revision: https://reviews.llvm.org/D83152
2021-03-07 16:20:13 -08:00
Peter Collingbourne bd7defeb94 llvm-nm: Implement --special-syms.
Differential Revision: https://reviews.llvm.org/D82251
2020-06-22 13:05:47 -07:00
Cyndy Ishida 28fefcc83c [llvm][llvm-nm] add TextAPI/MachO support
Summary:
This completes the needed glueing to support reading tbd files from nm.
This includes specifying which slice filtering with `--arch` and a new
option specifically for tbd files `--add-inlinedinfo` which will show
the reexported libraries that are appended in the tbd file.

Reviewers: ributzka, steven_wu, JDevlieghere, jhenderson

Reviewed By: JDevlieghere

Subscribers: hiraditya, MaskRay, dexonsmith, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81614
2020-06-11 18:54:16 -07:00
James Henderson 778a5e5734 [docs] Make --version text more correct
Follow-up to r371983. Referring to "this program" in the description of
the --version option in the documentation isn't exactly correct, because
the docs are not part of the program, and so "this program" doesn't
really refer to anything. This patch brings the other users of this
terminology into line with the new updates to llvm-size and
llvm-strings.

Reviewed by: alexshap, MaskRay

Differential Revision: https://reviews.llvm.org/D67618

llvm-svn: 372107
2019-09-17 11:43:42 +00:00
Nico Weber bb69208df8 Fix a few spellos in docs.
(Trying to debug an incremental build thing on a bot...)

llvm-svn: 371860
2019-09-13 14:58:24 +00:00
Alex Brachet 2eacf69880 Revert [tools] [llvm-nm] Default to reading from stdin not a.out
This reverts r365889 (git commit 60c81354b1)

llvm-svn: 366219
2019-07-16 15:33:43 +00:00
James Henderson 73e3336809 [docs][llvm-nm] Fix inconsistent grammar
llvm-svn: 366080
2019-07-15 16:40:34 +00:00
Alex Brachet 60c81354b1 [tools] [llvm-nm] Default to reading from stdin not a.out
Summary: This moves away from defaulting to a.out and uses stdin only if stdin has a file redirected to it. This has been discussed on the llvm-dev mailing list [[ https://lists.llvm.org/pipermail/llvm-dev/2019-July/133642.html | here ]].

Reviewers: jhenderson, rupprecht, MaskRay, chrisjackson

Reviewed By: jhenderson, MaskRay

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64290

llvm-svn: 365889
2019-07-12 10:20:01 +00:00
James Henderson 65d7511f38 [docs][llvm-nm] Improve some wording
In particular, the --debug-syms switch really doesn't have anything to
do with debuggers, so I've updated the document accordingly.

llvm-svn: 365461
2019-07-09 10:40:50 +00:00
James Henderson 92b32a9087 [docs][llvm-nm][llvm-objdump] Improve "See Also" section
The "See Also" section for llvm-nm didn't actually contain any links,
and the tools referred to didn't make much sense (referring to non-LLVM
tools, when we have equivalents, or tools that aren't really to do with
symbol dumping). llvm-objdump's didn't refer to llvm-readelf.

Reviewed by: grimar

Differential Revision: https://reviews.llvm.org/D63875

llvm-svn: 364552
2019-06-27 15:18:15 +00:00
James Henderson a056684c33 [docs][tools] Add missing "program" tags to rst files
Sphinx allows for definitions of command-line options using
`.. option <name>` and references to those options via `:option:<name>`.
However, it looks like there is no scoping of these options by default,
meaning that links can end up pointing to incorrect documents. See for
example the llvm-mca document, which contains references to -o that,
prior to this patch, pointed to a different document. What's worse is
that these links appear to be non-deterministic in which one is picked
(on my machine, some references end up pointing to opt, whereas on the
live docs, they point to llvm-dwarfdump, for example).

The fix is to add the .. program <name> tag. This essentially namespaces
the options (definitions and references) to the named program, ensuring
that the links are kept correct.

Reviwed by: andreadb

Differential Revision: https://reviews.llvm.org/D63873

llvm-svn: 364538
2019-06-27 13:24:46 +00:00
James Henderson 2c5ff94627 [docs][llvm-nm] Add missing options to documentation
There were several options missing from the documentation. This patch
adds them as well as improving some wording and separating the Mach-O
only options into a separate section.

Fixes https://bugs.llvm.org/show_bug.cgi?id=42234.

Reviewed by: MaskRay

Differential Revision: https://reviews.llvm.org/D63655

llvm-svn: 364176
2019-06-24 10:50:49 +00:00
James Henderson 3519d5535a [docs][llvm-nm] Improve symbol code documentation
The existing symbol code documentation was very incomplete. This patch
adds the missing codes, and defines them based on the current code
behaviour.

Fixes https://bugs.llvm.org/show_bug.cgi?id=42231.

Reviewed by: rupprecht, mtrent, MaskRay

Differential Revision: https://reviews.llvm.org/D63327

llvm-svn: 364171
2019-06-24 09:53:02 +00:00
James Henderson 9485b265e8 [binutils] Add response file option to help and docs
Many LLVM-based tools already support response files (i.e. files
containing a list of options, specified with '@'). This change simply
updates the documentation and help text for some of these tools to
include it. I haven't attempted to fix all tools, just a selection that
I am interested in.

I've taken the opportunity to add some tests for --help behaviour, where
they were missing. We could expand these tests, but I don't think that's
within scope of this patch.

This fixes https://bugs.llvm.org/show_bug.cgi?id=42233 and
https://bugs.llvm.org/show_bug.cgi?id=42236.

Reviewed by: grimar, MaskRay, jkorous

Differential Revision: https://reviews.llvm.org/D63597

llvm-svn: 364036
2019-06-21 11:49:20 +00:00
James Henderson 4cfcacbdfe [docs] Fix typo
llvm-svn: 363138
2019-06-12 10:48:33 +00:00
James Henderson 2c16bb8034 [llvm-nm] Fix docs and help text for --print-size
The --print-size help text and documentation claimed that the size was
printed instead of the address, but this is incorrect. It is printed as
well as the address. This patch fixes this issue.

Reviewed by: MaskRay, mtrent, ruiu

Differential Revision: https://reviews.llvm.org/D63142

llvm-svn: 363136
2019-06-12 10:44:41 +00:00
James Henderson 5058ae0945 [docs][llvm-nm] Add darwin as --format option
llvm-svn: 363081
2019-06-11 15:58:10 +00:00
James Henderson 224410b7c1 [docs][llvm-nm] Make --help help text consistent with other options
llvm-svn: 363073
2019-06-11 14:55:31 +00:00
James Henderson be7f5c7158 [docs][llvm-nm] Fix documentation regarding llvm-nm reading stdin
llvm-nm reads a.out NOT stdin when no input file is specified. This
patch fixes the doc accordingly, and rephrases the surrounding sentence
slightly.

Reviewed by: grimar

Differential Revision: https://reviews.llvm.org/D63135

llvm-svn: 363065
2019-06-11 13:46:52 +00:00
Dave Lee d4f77a523b nm: Add -no-weak flag for hiding weak symbols
Summary:
This adds a new -no-weak flag to nm to hide weak symbols in its output.
This also adds a -W alias for this which is analogous to -U.

Patch by Keith Smiley

Reviewers: kastiglione, enderby, compnerd

Reviewed By: kastiglione

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48751

llvm-svn: 336126
2018-07-02 17:24:37 +00:00
Sam Clegg 531da0081f llvm-nm: Add support for symbol demangling (-C/--demangle)
Differential Revision: https://reviews.llvm.org/D34668

llvm-svn: 306718
2017-06-29 18:29:05 +00:00
Renato Golin 124f2593fc [docs] Fixing Sphinx warnings to unclog the buildbot
Lots of blocks had "llvm" or "nasm" syntax types but either weren't following
the syntax, or the syntax has changed (and sphinx hasn't keep up) or the type
doesn't even exist (nasm?).

Other documents had :options: what were invalid. I only removed those that had
warnings, and left the ones that didn't, in order to follow the principle of
least surprise.

This is like this for ages, but the buildbot is now failing on errors. It may
take a while to upgrade the buildbot's sphinx, if that's even possible, but
that shouldn't stop us from getting docs updates (which seem down for quite
a while).

Also, we're not losing any syntax highlight, since when it doesn't parse, it
doesn't colour. Ie. those blocks are not being highlighted anyway.

I'm trying to get all docs in one go, so that it's easy to revert later if we
do fix, or at least easy to know what's to fix.

llvm-svn: 276109
2016-07-20 12:16:38 +00:00
Hemant Kulkarni 5e005a1108 [llvm-nm] Add -radix option
Differential Revision: http://reviews.llvm.org/D16822

llvm-svn: 260392
2016-02-10 17:51:39 +00:00
Dmitri Gribenko 8cac835723 docs: command guide: cleanups, no text changes
llvm-svn: 188627
2013-08-18 08:32:32 +00:00
Daniel Dunbar 06b9f9ecaa [typo] An LLVM.
llvm-svn: 188589
2013-08-16 23:30:19 +00:00
Michael J. Spencer 838e5add7e [llvm-nm] Update documentation to cover object file support and arguments.
llvm-svn: 158120
2012-06-06 23:34:10 +00:00
Daniel Dunbar 8f4a8a636c [docs] Add ReST version of all the man pages.
- The POD versions are slated for execution, but are still around until
   llvm.org machinery is in place.

llvm-svn: 156384
2012-05-08 16:50:35 +00:00