The documentation and help messages have recommended the double-dash forms for
quite a while. Remove one-dash long options which are not recognized by GNU
style `getopt_long`.
`-arch` is kept as it is in the manpage of classic nm
https://keith.github.io/xcode-man-pages/nm.1.html
Note: the dyldinfo related options don't have a test.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D105948
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
Exclude AArch64 mapping symbols ($x and $d) for symtab symbolization as
it was done for ARM since D95916 tom bring bots back to green state.
This is implemented by setting SF_FormatSpecific such that
llvm-symbolizer will ignore them, and use this flag to re-implement
llvm-nm --special-syms option which make it work for both targets.
Differential Revision: https://reviews.llvm.org/D98803
Some of these options have a degree of incidental coverage, or are for
Mach-O only. This patch adds dedicated ELF (where applicable) coverage.
Differential Revision: https://reviews.llvm.org/D96602
Reviewed by: rupprecht, Higuoxing
This adds colons to separate the file name from the message, removes a
duplicate space, and removes a trailing full stop from some messages.
These help bring the error messages into line with other tools, as well
as making all llvm-nm message more self-consistent.
Differential Revision: https://reviews.llvm.org/D96601
Reviewed by: Higuoxing, rupprecht, MaskRay
Avoid calling getFlags on a non-existent symbol.
The way this is triggered is by calling strip -N on a binary, which sets
the MH_NLIST_OUTOFSYNC_WITH_DYLDINFO header flag. Then, in the
LC_FUNCTION_STARTS command, nm is trying to print the stripped symbols
and needs the proper checks.
This patch extends D58439 (`llvm/test/{yaml2obj,obj2yaml}/**/*.yaml`) and runs all
`llvm/test/**/*.yaml`
Many directories have configured `.yaml` (see the deleted lit.local.cfg
files). Yet still some don't configure .yaml and have caused stale tests:
* 8c5825befb test/llvm-readobj
* bdc3134e23 test/ExecutionEngine
Just hoist .yaml to `llvm/test/lit.cfg.py`. Also delete .cxx which is
not used. The number of tests running on my machine increases from 38304 to 38309.
The list of new tests:
```
ExecutionEngine/RuntimeDyld/X86/ELF_x86-64_none.yaml
Object/archive-error-tmp.txt
tools/llvm-ar/coff-weak.yaml
tools/llvm-readobj/ELF/verneed-flags.yaml
tools/obj2yaml/COFF/bss.s
```
Reviewed By: grimar, jhenderson, rupprecht
Differential Revision: https://reviews.llvm.org/D83350
This change adds tests for llvm-nm, llvm-objdump and llvm-size when dumping symbol tables with invalid sh_size (sh_size % sizeof(Elf_Sym) != 0).
Reviewed By: jhenderson, MaskRay
Differential Revision: https://reviews.llvm.org/D77864
Summary:
Note: This revision is very similar to D62296.
In D75756, we need `getDynamicSymbolIterators()` to skip first NULL symbol in `.dynsym`. And I believe it might be worth pointing this out in a separate patch to gather you experts' opinions.
I have checked that current code base will not be affected by this change.
```
dynamic_symbol_begin()
|- dynamic_symbol_end(): Ok
`- getDynamicSymbolIterators()
|- addDynamicElfSymbols(): llvm/tools/llvm-objdump/llvm-objdump.cpp, Line 934
| Ok, NULL symbol will be omitted by Line 945-947
| StringRef Name = unwrapOrError(Symbol.getName(), Obj->getName());
| if (Name.empty()) continue;
|- dumpSymbolNameFromObject(): llvm/tools/llvm-nm/llvm-nm.cpp, Line 1192
| There's no test for dumping dynamic debugging symbol. This patch helps improve llvm-nm behavior. (we should add test for this later)
`- computeSymbolSizes(): llvm/lib/Object/SymbolSize.cpp, Line 52
|- OProfileJITEventListener::notifyObjectLoaded(): llvm/lib/ExecutionEngine/OProfileJIT/OProfileJITEventListener.cpp, Line 92
| Ok, NULL symbol will be omitted by Line 94-95
| if (!Sym.getType() || *Sym.getType() != SF_Function) continue;
|- IntelJITEventListener::notifyObjectLoaded(): llvm/lib/ExecutionEngine/IntelJITEvents/IntelJITEventListener.cpp, Line 98
| Ok, NULL symbol will be omitted by Line 124-126 (same as previous one)
|- PerfJITEventListener::notifyObjectLoaded(): llvm/lib/ExecutionEngine/PerfJITEvents/PerfJITEventListener.cpp, Line 244
| Ok, NULL symbol will be omitted by Line 254-256, (same as previous one)
|- SymbolizableObjectFile::create(): llvm/lib/DebugInfo/Symbolize/SymbolizableObjectFile.cpp, Line 73
| Ok, NULL symbol will be omitted by Line 75
| res->addSymbol()
| In addSymbol(), Line 167-168
| if (!Sec || (Obj && Obj->section_end() == *Sec)) return std::error_code();
|- dumpCXXData(): llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp, Line 189
| Ok, NULL symbol will be omitted by Line 199-202
| object::section_iterator SecI = *SecIOrErr;
| // Skip external symbols.
| if (SecI == Obj->section_end())
| continue;
`- printLineInfoForInput(): llvm/tools/llvm-rtdyld/llvm-rtdyld.cpp, Line 418
Ok, NULL symbol will be omitted by Line 430-477
if (Type == object::SymbolRef::ST_Function) {
...
}
```
Reviewers: grimar, jhenderson, MaskRay
Reviewed By: jhenderson, MaskRay
Subscribers: rupprecht, arphaman, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D76081
To improve consistency and avoid unneeded shell feature (output
redirection).
While here, make other changes to improve consistency
--docnum 1 => --docnum=1
-docnum=x => --docnum=x
Previously we were reporting this error if we were list no symbols
which is not the same thing as the file containing no symbols.
Also, always report the filename when printing errors.
This matches the GNU nm behaviour.
This a followup to https://reviews.llvm.org/D52810
Differential Revision: https://reviews.llvm.org/D72658
Mostly this adds testing for certain aliases in more explicit ways.
There are also a few tidy-ups, and additions of missing testing, where
the feature was either not tested at all, or not tested explicitly and
sufficiently.
Reviewed by: MaskRay, rupprecht, grimar
Differential Revision: https://reviews.llvm.org/D71116
Summary:
Also changes the wasm YAML format to reflect the possibility of having
multiple return types and to put the returns after the params for
consistency with the binary encoding.
Reviewers: aheejin, sbc100
Subscribers: dschuff, jgravelle-google, hiraditya, sunfish, arphaman, rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69156
llvm-svn: 375283
Fix: add a 'consumeError()' call to ObjectFile.cpp.
This error was never checked.
Original commit message:
It adds a test case for a problem fixed by D66976 <https://reviews.llvm.org/D66976>.
It was introduced by me in D66089 <https://reviews.llvm.org/D66089>.
The error reported was never consumed because of a wrong variable name used,
so it could fail when LLVM_ENABLE_ABI_BREAKING_CHECKS is used.
Differential revision: https://reviews.llvm.org/D67002
llvm-svn: 370669
It adds a test case for a problem fixed by D66976.
It was introduced by me in D66089.
The error reported was never consumed because of a wrong variable name used,
so it could fail when LLVM_ENABLE_ABI_BREAKING_CHECKS is used.
Differential revision: https://reviews.llvm.org/D67002
llvm-svn: 370661
For type values that do not have proper names, print reasonable representation
in llvm-nm, llvm-readobj and llvm-readelf, matching GNU tools.s
Fixes PR41713.
Differential Revision: https://reviews.llvm.org/D65537
llvm-svn: 368451
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
Summary:
https://bugs.llvm.org/show_bug.cgi?id=41353
I'm new to LLVM and C++ so please do not hesitate to iterate with me on this fix.
Patch by Mike Pozulp!
Reviewers: rupprecht, zbrid, grimar, jhenderson
Reviewed By: rupprecht, jhenderson
Subscribers: jhenderson, chrisjackson, MaskRay, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61117
llvm-svn: 361595
This restores part of r359311 that was reverted by r359830.
Rewrite the symbol types to fix several issues.
Notable difference is that the type of __init_array_start changes from
't' to 'd'.
GNU nm used to mark ELF symbols relative to .init_array as 't'
https://sourceware.org/bugzilla/show_bug.cgi?id=24505 (before 2.33)
because ".init" is the prefix. The bug was copied by r287803.
Reviewed By: jhenderson
Differential Revision: https://reviews.llvm.org/D61551
llvm-svn: 360339
In addition, fix and convert the two tests to yaml2obj based. This
allows us to delete two executables.
X86/weak.test: 'v' was not tested
X86/init-fini.test: symbol types of __bss_start _edata _end were wrong
GNU nm reports __init_array_start as 't', and __preinit_array_start as 'd'.
__init_array_start is 't' just because its section ".init_array" starts with ".init"
'd' makes more sense and allows us to drop the weird SHT_INIT_ARRAY rule.
So, change __init_array_start to 'd' instead.
llvm-svn: 359311
Only display help from the llvm-nm category instead of all llvm options, which make it much more usable.
There's still an issue with -s, which is probably a bug in llvm::cl and worth another commit.
Differential Revision: https://reviews.llvm.org/D60411
llvm-svn: 358185
GNU nm has --no-demangle, so llvm-nm should too. It disables the
--demangle switch. The patch also allows --demangle to be specified
multiple times (the last of all --no-demangle/--demangle switches
takes precedence).
Reviewed by: grimar, rupprecht, mattd
Differential Revision: https://reviews.llvm.org/D60134
llvm-svn: 357575
Specifically, compute and Print Type and Section columns.
This is a re-commit of rL354833, after fixing the Asan problem found a a buildbot.
Differential Revision: https://reviews.llvm.org/D59060
llvm-svn: 355742
Summary:
In the clang UI, replaces -mthread-model posix with -matomics as the
source of truth on threading. In the backend, replaces
-thread-model=posix with the atomics target feature, which is now
collected on the WebAssemblyTargetMachine along with all other used
features. These collected features will also be used to emit the
target features section in the future.
The default configuration for the backend is thread-model=posix and no
atomics, which was previously an invalid configuration. This change
makes the default valid because the thread model is ignored.
A side effect of this change is that objects are never emitted with
passive segments. It will instead be up to the linker to decide
whether sections should be active or passive based on whether atomics
are used in the final link.
Reviewers: aheejin, sbc100, dschuff
Subscribers: mehdi_amini, jgravelle-google, hiraditya, sunfish, steven_wu, dexonsmith, rupprecht, jfb, jdoerfert, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D58742
llvm-svn: 355112
Fangrui Song