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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335749 91177308-0d34-0410-b5e6-96231b3b80d8
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@328965 91177308-0d34-0410-b5e6-96231b3b80d8
This patch introduces the LinkContext which is necessary to have
dsymutil perform analysis and cloning of DIEs in parallel. As requested
in D43945, I'm landing this as two separate commits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@327382 91177308-0d34-0410-b5e6-96231b3b80d8
With autobrief enabled, these server no purpose anymore. Most of them
were already removed but this makes everything consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325769 91177308-0d34-0410-b5e6-96231b3b80d8
Some over-due gardening: this fixes a bunch of typos and makes the
formatting consistent with LLVM's style guide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@325768 91177308-0d34-0410-b5e6-96231b3b80d8
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324592 91177308-0d34-0410-b5e6-96231b3b80d8
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324480 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.
Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).
Reviewers: aprantl, friss
Subscribers: llvm-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D38504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315066 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.
Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).
Reviewers: aprantl, friss
Subscribers: llvm-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D38504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315014 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Xcode's dsymutil emits a __swift_ast DWARF section, which is required for debugging,
and which contains a byte-for-byte dump of the swiftmodule file.
Add this feature to llvm-dsymutil.
Tested with `gobjdump --dwarf=info -s`, by verifying that the contents of
`__DWARF.__swift_ast` match between Xcode's dsymutil and llvm-dsymutil
(Xcode's dwarfdump and llvm-dwarfdump don't currently recognize the
__swift_ast section).
Reviewers: aprantl, friss
Subscribers: llvm-commits, JDevlieghere
Differential Revision: https://reviews.llvm.org/D38504
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@315004 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
All changes are pretty straight-forward. I chose to use TimePoints with
second precision, as that is all that seems to be required here.
Reviewers: friss, zturner
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D25908
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286358 91177308-0d34-0410-b5e6-96231b3b80d8
This resubmits a3770391c5fb64108d565e12f61dd77ce71b5b4f,
which was reverted due to breakages on non-Windows machines.
Due to differences in template instantiation rules on Microsoft
and non-Microsoft platforms, a member access restriction was
triggering on non-Microsoft compilers. Previously, a friend
declaration for std::vector<> had been introduced into the
DebugMap class to make the member access restriction pass,
but the introduction of support for SmallVector<> meant that
an additional friend declaration would need to be added.
This didn't really make a lot of sense since the user of the
macro is probably only using one type (SmallVector<>, vector<>,
etc) and we could in theory add support for even more types
to this macro in the future (e.g. std::deque), so rather than
add another friend declaration, I just made the type being
referenced a public nested typedef instead of a private nested
typedef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277888 91177308-0d34-0410-b5e6-96231b3b80d8
This change just changes the data structure that ties symbol names,
object file address and linked binary addresses to accept mappings
with no object file address. Such symbol mappings are not fed into
the debug map yet, so this patch is NFC.
A subsequent patch will make use of this functionality for common
symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259317 91177308-0d34-0410-b5e6-96231b3b80d8
llvm-dsymutil needs to emit dSYM companion bundles. These are binary files
that replicate some of the orignal binary file properties (sections and
symbols). To get acces to these properties, pass the binary path in the
debug map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246011 91177308-0d34-0410-b5e6-96231b3b80d8
The DWARF linker isn't touched by this, the implementation links
individual files and merges them together into a fat binary by
calling out to the 'lipo' utility.
The main change is that the MachODebugMapParser can now return
multiple debug maps for a single binary.
The test just verifies that lipo would be invoked correctly, but
doesn't actually generate a binary. This mimics the way clang
tests its external iplatform tools integration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@244087 91177308-0d34-0410-b5e6-96231b3b80d8
The debug map contains the timestamp of the object files in references.
We do not check these in the general case, but it's really useful if
you have archives where different versions of an object file have been
appended. This allows llvm-dsymutil to find the right one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242965 91177308-0d34-0410-b5e6-96231b3b80d8
It will get a bit bigger in an upcoming commit. No need to have all
of that in the header.
Also move parseYAMLDebugMap() to the same place as the serialization
code. This way it will be able to share a private Context object with
it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239185 91177308-0d34-0410-b5e6-96231b3b80d8
With a couple more constructors that GCC thinks are necessary.
Original commit message:
[dsymutil] Accept a YAML debug map as input instead of a binary.
To do this, the user needs to pass the new -y flag.
As it wasn't tested before, the debug map YAML deserialization was
completely buggy (mainly because the DebugMapObject has a dual
mapping that allows to search by name and by address, but only the
StringMap got populated). It's fixed and tested in this commit by
augmenting some test with a 2 stage dwarf link: a frist llvm-dsymutil
reads the debug map and pipes it in a second instance that does the
actual link without touching the initial binary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238959 91177308-0d34-0410-b5e6-96231b3b80d8
To do this, the user needs to pass the new -y flag.
As it wasn't tested before, the debug map YAML deserialization was
completely buggy (mainly because the DebugMapObject has a dual
mapping that allows to search by name and by address, but only the
StringMap got populated). It's fixed and tested in this commit by
augmenting some test with a 2 stage dwarf link: a frist llvm-dsymutil
reads the debug map and pipes it in a second instance that does the
actual link without touching the initial binary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238941 91177308-0d34-0410-b5e6-96231b3b80d8
Doing so will allow us to also accept a YAML debug map in input as using
YAMLIO gives us the parsing for free. Being able to have textual debug
maps will in turn allow much more control over the tests, because 1/
no need to check-in a binary containing the debug map and 2/ it will allow
to use the same objects/IR files with made-up debug-maps to test
different scenari.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238781 91177308-0d34-0410-b5e6-96231b3b80d8
The debug map embedded by ld64 in binaries conatins function sizes.
These sizes are less precise than the ones given by the debug information
(byte granularity vs linker atom granularity), but they might cover code
that is referenced in the line table but not in the DIE tree (that might
very well be a compiler bug that I need to investigate later).
Anyway, extracting that information is necessary to be able to mimic
dsymutil's behavior exactly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232300 91177308-0d34-0410-b5e6-96231b3b80d8
It turns out the debug map will be interogated both by name and
by object file address. Add the latter capability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229177 91177308-0d34-0410-b5e6-96231b3b80d8
It will be needed to instantiate the Target object that we will
use to create all the MC objects for the dwarf emission.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226525 91177308-0d34-0410-b5e6-96231b3b80d8
utils/sort_includes.py.
I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225974 91177308-0d34-0410-b5e6-96231b3b80d8
The goal of this tool is to replicate Darwin's dsymutil functionality
based on LLVM. dsymutil is a DWARF linker. Darwin's linker (ld64) does
not link the debug information, it leaves it in the object files in
relocatable form, but embbeds a `debug map` into the executable that
describes where to find the debug information and how to relocate it.
When releasing/archiving a binary, dsymutil is called to link all the DWARF
information into a `dsym bundle` that can distributed/stored along with
the binary.
With this commit, the LLVM based dsymutil is just able to parse the STABS
debug maps embedded by ld64 in linked binaries (and not all of them, for
example archives aren't supported yet).
Note that the tool directory is called dsymutil, but the executable is
currently called llvm-dsymutil. This discrepancy will disappear once the
tool will be feature complete. At this point the executable will be renamed
to dsymutil, but until then you do not want it to override the system one.
Differential Revision: http://reviews.llvm.org/D6242
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224134 91177308-0d34-0410-b5e6-96231b3b80d8
The goal of this tool is to replicate Darwin's dsymutil functionality
based on LLVM. dsymutil is a DWARF linker. Darwin's linker (ld64) does
not link the debug information, it leaves it in the object files in
relocatable form, but embbeds a `debug map` into the executable that
describes where to find the debug information and how to relocate it.
When releasing/archiving a binary, dsymutil is called to link all the DWARF
information into a `dsym bundle` that can distributed/stored along with
the binary.
With this commit, the LLVM based dsymutil is just able to parse the STABS
debug maps embedded by ld64 in linked binaries (and not all of them, for
example archives aren't supported yet).
Note that the tool directory is called dsymutil, but the executable is
currently called llvm-dsymutil. This discrepancy will disappear once the
tool will be feature complete. At this point the executable will be renamed
to dsymutil, but until then you do not want it to override the system one.
Differential Revision: http://reviews.llvm.org/D6242
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223793 91177308-0d34-0410-b5e6-96231b3b80d8
