When a Swift module built with debug info imports a library without
debug info from a textual interface, the textual interface is
necessary to reconstruct types defined in the library's interface. By
recording the Swift interface files in DWARF dsymutil can collect them
and LLDB can find them.
This patch teaches dsymutil to look for DW_TAG_imported_modules and
records all references to parseable Swift ingterfrace files and copies
them to
a.out.dSYM/Contents/Resources/<Arch>/<ModuleName>.swiftinterface
<rdar://problem/49751748>
llvm-svn: 358921
to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
The unobufscation support for BCSymbolMaps was the last piece of code
that hasn't been upstreamed yet. This patch contains a reworked version
of the existing code and relevant tests.
Differential revision: https://reviews.llvm.org/D56346
llvm-svn: 350580
Before this patch we were returning an empty string in case we couldn't
create the output file. Now we return an expected string so we can
return and print the proper issue. We now return errors instead of bools
and defer printing to the call site.
llvm-svn: 344983
Dsymutil's update functionality was broken on Windows because we tried
to rename a file while we're holding open handles to that file. TempFile
provides a solution for this through its keep(Twine) method. This patch
changes dsymutil to make use of that functionality.
Differential revision: https://reviews.llvm.org/D49860
llvm-svn: 338216
This patch add support for emitting DWARF5 accelerator tables
(.debug_names) from dsymutil. Just as with the Apple style accelerator
tables, it's possible to update existing dSYMs. This patch includes a
test that show how you can convert back and forth between the two types.
If no kind of table is specified, dsymutil will default to generating
Apple-style accelerator tables whenever it finds those in its input. The
same is true when there are no accelerator tables at all. Finally, in
the remaining case, where there's at least one DWARF v5 table and no
Apple ones, the output will contains a DWARF accelerator tables
(.debug_names).
Differential revision: https://reviews.llvm.org/D49137
llvm-svn: 337980
When implementing the DWARF accelerator tables in dsymutil I ran into an
assertion in the assembler. Debugging these kind of issues is a lot
easier when looking at the assembly instead of debugging the assembler
itself. Since it's only a matter of creating an AsmStreamer instead of a
MCObjectStreamer it made sense to turn this into a (hidden) dsymutil
feature.
Differential revision: https://reviews.llvm.org/D49079
llvm-svn: 336561
The original binary holder has an optimization where it caches a static
library (archive) between consecutive calls to GetObjects. However, the
actual memory buffer wasn't cached between calls.
This made sense when dsymutil was processing objects one after each
other, but when processing them in parallel, several binaries have to be
in memory at the same time. For this reason, every link context
contained a binary holder.
Having one binary holder per context is problematic, because the same
static archive was cached for every object file. Luckily, when the file
is mmap'ed, this was only costing us virtual memory.
This patch introduces a new BinaryHolder variant that is fully cached,
for all the object files it load, as well as the static archives. This
way, we don't have to give up on this optimization of bypassing the
file system.
Differential revision: https://reviews.llvm.org/D48501
llvm-svn: 335990
This patch splits off some abstractions used by dsymutil's dwarf linker
and moves them into separate header and implementation files. This
almost halves the number of LOC in DwarfLinker.cpp and makes it a lot
easier to understand what functionality lives where.
Differential revision: https://reviews.llvm.org/D48647
llvm-svn: 335749
As noted by Adrian on llvm-commits, PrintHTMLEscaped and PrintEscaped in
StringExtras did not conform to the LLVM coding guidelines. This commit
rectifies that.
llvm-svn: 333669
When printing string in the Plist, we weren't escaping the characters
which lead to invalid XML. This patch adds the escape logic to
StringExtras.
rdar://39785334
llvm-svn: 333565
This commit adds a color category so tools can document this option and
enables it for dwarfdump and dsymuttil.
rdar://problem/40498996
llvm-svn: 333176
Create convenience functions for printing error, warning and note to
stdout. Previously we had similar functions being used in dsymutil, but
given that this pattern is so common it makes sense to make it available
globally.
llvm-svn: 330091
We have a few functions that virtually all command wants to run on
process startup/shutdown. This patch adds InitLLVM class to do that
all at once, so that we don't need to copy-n-paste boilerplate code
to each llvm command's main() function.
Differential Revision: https://reviews.llvm.org/D45602
llvm-svn: 330046
The DwarfLinker can have some very deep recursion that can max out the
(significantly smaller) stack when using threads. We don't want this
limitation when we only have a single thread. We already have this
workaround for the architecture-related threading. This patch applies
the same workaround to the parallel analysis and cloning.
Differential revision: https://reviews.llvm.org/D45172
llvm-svn: 329093
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
This is a follow-up to r327137 where we unified error handling for the
DwarfLinker. This replaces calls to errs() and outs() with the
appropriate ostream wrapper everywhere in dsymutil.
llvm-svn: 327411
When processing a dSYM bundle, use llvm::sys::path to join the different
path components instead of using a string with hard coded forward
slashes as separators.
llvm-svn: 324622
This commit attempts to re-land the r324480 which was reverted in
r324493 because it broke the Windows bots. For now I disabled the two
update tests on Windows until I'm able to debug this.
Differential revision: https://reviews.llvm.org/D42880
llvm-svn: 324592
Now that dsymutil can generate accelerator tables, we can upstream the
update logic that, as the name implies, updates the accelerator tables
in an existing dSYM bundle. In combination with `-minimize` this can be
used to remove redundant .debug_(inlines|pubtypes|pubnames).
Differential revision: https://reviews.llvm.org/D42880
llvm-svn: 324480
Passing -minimize to dsymutil prevents the emission of .debug_inlines,
.debug_pubnames, and .debug_pubtypes in favor of the Apple accelerator
tables.
The actual check in the DWARF linker was added in r323655. This patch
simply enables it.
Differential revision: https://reviews.llvm.org/D42688
llvm-svn: 323812
Threading was disabled in r317263 because it broke a test in combination
with `-DLLVM_ENABLE_THREADS=OFF`. This was because a ThreadPool warning
was piped to llvm-dwarfdump which was expecting to read an object from
stdin.
This patch re-enables threading and fixes the offending test.
Unfortunately this required more than just moving the ThreadPool out of
the for loop because of the TempFile refactoring that took place in the
meantime.
Differential revision: https://reviews.llvm.org/D41180
llvm-svn: 320601
This patch adds support for running the DWARF verifier on the linked
debug info files. If the -verify options is specified and verification
fails, dsymutil exists with abort with non-zero exit code. This behavior
is *not* enabled by default.
Differential revision: https://reviews.llvm.org/D40777
llvm-svn: 320033
This patch implements `getBundleInfo`, which uses CoreFoundation to
obtain information about the CFBundle. This information is needed to
populate the Plist in the dSYM bundle.
This change only applies to darwin and is an NFC as far as other
platforms are concerned.
Differential revision: https://reviews.llvm.org/D40244
llvm-svn: 319416
This moves the file handling out of DwarfLinker.cpp.
This fixes what is at least an oddity if not a bug. DwarfLinker.cpp
was using ToolOutputFile, which uses RemoveFileOnSignal. The issue is
that dsymutil.cpp uses that too. It is now clear from the interface
that only dsymutil.cpp is responsible for creating and deleting files.
llvm-svn: 318334
This makes the command line options consistent with llvm-cov and
llvm-profdata, which both use `-num-threads` and `-j`.
This also addresses the conflict reported after landing D39355.
Differential revision: https://reviews.llvm.org/D39496
llvm-svn: 317104
This patch adds the --threads option to dsymutil to process
architectures in parallel. The feature is already present in the version
distributed with Xcode, but was not yet upstreamed.
This is NFC as far as the linking behavior is concerned. As threads are
used automatically, the current tests cover the change in
implementation.
Differential revision: https://reviews.llvm.org/D39355
llvm-svn: 316999
This patch adds timestamp verification for swiftmodule files. A new flag
is provided to allows us to disable this check in order to allow testing
of this feature.
Differential revision: https://reviews.llvm.org/D38686
llvm-svn: 315684
This patch adds timestamp verification for swiftmodule files.
- A new flag is provided to allows us to continue testing of the code
for embedding the__swift_ast. (git doesn't maintain timestamps)
- Adds a new test for fat (arm) binaries.
Differential revision: https://reviews.llvm.org/D38686
llvm-svn: 315456
Most callers were not expecting the exit(0) and trying to exit with a
different value.
This also adds back the call to cl::PrintHelpMessage in llvm-ar.
llvm-svn: 312761
looking for it along $PATH. This allows installs of LLVM tools outside of
$PATH to find the symbolizer and produce pretty backtraces if they crash.
llvm-svn: 272232
llvm-dsymutil used to create the temporary files in the output directory.
This works fine except when the output directory contains a '%' char, which
is then replaced by llvm::sys::fs::createUniqueFile() generating an invalid
path.
Just use the default temp dir for those files.
llvm-svn: 268304
Even if we don't have it in PATH, lipo should usually exist in the same directory
as dsymutil. Keep the fallback looking up the PATH, it's very useful when
testing a non-installed executable.
llvm-svn: 249762
Adrian Prantl