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Summary:
llvm-cxxfilt wasn't correctly demangle COFF import thunk in those two
cases before:
* demangle in split mode (multiple words from commandline)
* the import thunk prefix was added no matter the later part of the
string can be demangled or not
Now llvm-cxxfilt should handle both case correctly.
Reviewers: compnerd, erik.pilkington, jhenderson
Reviewed By: jhenderson
Subscribers: jkorous, dexonsmith, ributzka, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71425
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Differential Revision: https://reviews.llvm.org/D71202
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See also e84468c1f.
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When committing dba420bc05ae, I missed that a darwin-specific change had
been recently introduced into llvm-cxxfilt, which my change ignored and
consequently broke the darwin build bot. This change fixes this issue as
well as improving naming/commenting of things related to this point so
that people are less likely to run into the same issue as I did.
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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
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Summary:
For platform that uses macho format, c++filt should be stripping the
leading underscore by default. Introduce the binutil compatible "-n"
option to control strip-undercore behaivor together with the existing
"-_" option and fallback to system default if none of them are set.
rdar://problem/57173514
Reviewers: compnerd, erik.pilkington, dexonsmith, mattd
Reviewed By: compnerd, erik.pilkington
Subscribers: jkorous, ributzka, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70250
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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
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I recently discovered a bug in llvm-cxxfilt introduced in r353743 but
was fixed later incidentally due to r355031. Specifically, llvm-cxxfilt
was attempting to call .back() on an empty string any time there was a
new line in the input. This was causing a crash in my debug builds only.
This patch simply adds a test that explicitly tests that llvm-cxxfilt
handles empty lines correctly. It may pass under release builds under
the broken behaviour, but it fails at least in debug builds.
Reviewed by: mattd
Differential Revision: https://reviews.llvm.org/D58785
llvm-svn: 355929
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non-alphanumerics.
This restores the patch that splits demangled stdin input on
non-alphanumerics. I had reverted this patch earlier because it broke
Windows build-bots. I have updated the test so that it passes on
Windows.
I was running the test from powershell and never saw the issue until I
switched to the mingw shell.
This reverts commit 628ab5c6820bdf3bb5a8e494b0fd9e7312ce7150.
llvm-svn: 355031
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non-alphanumerics."
This reverts commit 5cd5f8f2563395f8767f94604eb4c4bea8dcbea0.
The test passes on linux, but fails on the windows build-bots.
This test failure seems to be a quoting issue between my test and
FileCheck on Windows. I'm reverting this patch until I can replicate
and fix in my Windows environment.
llvm-svn: 355021
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The original intent was to enable this test for Windows; however, that
initial patch broke one of the build-bots. I temporarily disabled this
test on Windows until that issue was resolved. It was resolved in my
previous patch (cfd1d9742ee2d1b8dd6b7), and now I am re-enabling this
test.
llvm-svn: 355011
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Ideally this is a NFCI, used single quotes in most cases. Hopefully
this will make the Windows bot happy.
I've marked this unsupported on windows, until I get my windows box
setup with this patch to test. I'll remove that constraint after I'm
confident this will pass on windows. I just want to silence the
buildbots for now.
llvm-svn: 355007
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Summary:
This patch attempts to replicate GNU c++-filt behavior when splitting stdin input for demangling.
Previously, cxx-filt would split input only on spaces. Each delimited item is then demangled.
From what I have tested, GNU c++filt also splits input on any character that does not make
up the mangled name (notably commas, but also a large set of non-alphanumeric characters).
This patch splits stdin input on any character that does not belong to the Itanium mangling
format (since Itanium is currently the only supported format in llvm-cxxfilt).
This is an update to PR39990
Reviewers: jhenderson, tejohnson, compnerd
Reviewed By: compnerd
Subscribers: erik.pilkington, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D58416
llvm-svn: 354998
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Summary:
Originally, llvm-cxxfilt would treat a line as a single mangled item to be demangled.
If a mangled name appears in the middle of that string, that name would not be demangled.
GNU c++filt splits and demangles every word in a string that is piped to it via stdin.
Prior to this patch llvm-cxxfilt would never split strings piped to it.
This patch replicates the GNU behavior and splits strings that are piped to it via stdin.
This fixes PR39990
Reviewers: compnerd, jhenderson, davide
Reviewed By: compnerd, jhenderson
Subscribers: erik.pilkington, jhenderson, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D57350
llvm-svn: 353743
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Patch by Christopher James Halse Rogers!
llvm-svn: 328256
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The synthetic thunk for the import is prefixed with __imp_. Attempt to
undecorate the names when they begin with the __imp_ prefix.
llvm-svn: 298550
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Add the `--strip-underscore` option to llvm-cxxfilt to strip the leading
underscore. This is useful for when dealing with targets which add a
leading underscore.
llvm-svn: 292759
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By default c++filt demangles functions, though you can optionally pass
`-t` to have it decode types as well, behaving nearly identical to
`__cxa_demangle`. Add support for this mode.
llvm-svn: 292576
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c++filt does not attempt to demangle symbols which do not match its
expected format. This means that the symbol must start with _Z or ___Z
(block invocation function extension). Any other symbols are returned
as is. Note that this is different from the behaviour of __cxa_demangle
which will demangle fragments.
llvm-svn: 292467
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`c++filt` when given no arguments runs as a REPL, decoding each line as a
decorated name. Unify the test structure to be more uniform, with the tests for
llvm-cxxfilt living under test/tools/llvm-cxxfilt.
llvm-svn: 286777
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