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These are the last sections not managed by the DWARFContext object. I
also introduce separate SectionType enums for dwo section variants, as
this is necessary for proper handling of single-file split dwarf.
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Windows on ARM always uses thumb mode, and doesn't have most of the
mechanisms that are used in e.g. ELF for distinguishing between arm
and thumb.
Differential Revision: https://reviews.llvm.org/D70796
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COFF section names can either be stored truncated to 8 chars, in the
section header, or as a longer section name, stored separately in the
string table.
libunwind locates the .eh_frame section by runtime introspection,
which only works for section names stored in the section header (as
the string table isn't mapped at runtime). To support this behaviour,
lld always truncates the section names for sections that will be
mapped, like .eh_frame.
Differential Revision: https://reviews.llvm.org/D70745
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Include the fancier DWARF5 sections too.
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Summary:
This patch addresses an ambiguity in how our existing tests invoke the
compiler. Roughly two thirds of our current "shell" tests invoke the
compiler to build the executables for the host. However, there is also
a significant number of tests which don't build a host binary (because
they don't need to run it) and instead they hardcode a certain target.
We also have code which adds a bunch of default arguments to the %clang
substitutions. However, most of these arguments only really make sense
for the host compilation. So far, this has worked mostly ok, because the
arguments we were adding were not conflicting with the target-hardcoding
tests (though they did provoke an occasional "argument unused" warning).
However, this started to break down when we wanted to use
target-hardcoding clang-cl tests (D69031) because clang-cl has a
substantially different command line, and it was getting very confused
by some of the arguments we were adding on non-windows hosts.
This patch avoid this problem by creating separate %clang(xx,_cl)_host
substutitions, which are specifically meant to be used for compiling
host binaries. All funny host-specific options are moved there. To
ensure that the regular %clang substitutions are not used for compiling
host binaries (skipping the extra arguments) I employ a little
hac^H^H^Htrick -- I add an invalid --target argument to the %clang
substitution, which means that one has to use an explicit --target in
order for the compilation to succeed.
Reviewers: JDevlieghere, aprantl, mstorsjo, espindola
Subscribers: emaste, arichardson, MaskRay, jfb, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D69619
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errors out on
llvm::object::createBinary returns an Expected<>, which requires
not only checking the object for success, but also requires consuming
the Error, if one was set.
Use LLDB_LOG_ERROR for this case, and change an existing similar log
statement to use it as well, to make sure the Error is consumed even
if the log channel is disabled.
Differential Revision: https://reviews.llvm.org/D69646
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Summary:
This enables us to reason about whether a given address can be
executable, for instance during unwinding.
Reviewers: amccarth, mstorsjo
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D69102
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The virtual container/header section caused the section list to be
offset by one, but by using FindSectionByID, the layout of the
section list shouldn't matter.
Differential Revision: https://reviews.llvm.org/D69366
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In an attempt to ensure that every part of the module's memory image is
accounted for, D56537 created a special "container section" spanning the
entire image. While that seemed reasonable at the time (and it still
mostly does), it did create a problem of what to put as the "file size"
of the section, because the image is not continuous on disk, as we
generally assume (which is why I put zero there). Additionally, this
arrangement makes it unclear what kind of permissions should be assigned
to that section (which is what my next patch does).
To get around these, this patch partially reverts D56537, and goes back
to top-level sections. Instead, what I do is create a new "section" for
the object file header, which is also being loaded into memory, though
its not considered to be a section in the strictest sense. This makes it
possible to correctly assign file size section, and we can later assign
permissions to it as well.
Reviewers: amccarth, mstorsjo
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D69100
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Summary:
After D69041, we no longer have to manually remove the .symtab section
once yaml2obj was run.
Reviewers: espindola, alexshap
Subscribers: emaste, arichardson, MaskRay, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D69254
llvm-svn: 375415
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This matches all other architectures listed in the same file.
This fixes debugging aarch64 executables with lldb-server, which
otherwise fails, with log messages like these:
Target::SetArchitecture changing architecture to aarch64 (aarch64-pc-windows-msvc)
Target::SetArchitecture Trying to select executable file architecture aarch64 (aarch64-pc-windows-msvc)
ArchSpec::SetArchitecture sets the vendor to llvm::Triple::PC
for any coff/win32 combination, and if this doesn't match the triple
set by the PECOFF module, things doesn't seem to work with when
using lldb-server.
Differential Revision: https://reviews.llvm.org/D68939
llvm-svn: 374867
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We don't actually need the section content for this tests.
llvm-svn: 374382
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This was failing for me because of this error:
llvm-objcopy: error: 'build/tools/lldb/test/ObjectFile/ELF/Output/minidebuginfo-set-and-hit-breakpoint.test.tmp.mini_debuginfo': section '.dynsym' cannot be removed because it is referenced by the section '.hash'
Patch by Konrad Kleine!
llvm-svn: 374352
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The original patch got reverted because it broke `check-lldb` on a clean
build. This fixes that.
llvm-svn: 374201
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as it appears to have broken check-lldb.
This reverts r374184 (git commit 22314179f0660c172514b397060fd8f34b586e82)
llvm-svn: 374187
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LLDB has three major testing strategies: unit tests, tests that exercise
the SB API though dotest.py and what we currently call lit tests. The
later is rather confusing as we're now using lit as the driver for all
three types of tests. As most of this grew organically, the directory
structure in the LLDB repository doesn't really make this clear.
The 'lit' tests are part of the root and among these tests there's a
Unit and Suite folder for the unit and dotest-tests. This layout makes
it impossible to run just the lit tests.
This patch changes the directory layout to match the 3 testing
strategies, each with their own directory and their own configuration
file. This means there are now 3 directories under lit with 3
corresponding targets:
- API (check-lldb-api): Test exercising the SB API.
- Shell (check-lldb-shell): Test exercising command line utilities.
- Unit (check-lldb-unit): Unit tests.
Finally, there's still the `check-lldb` target that runs all three test
suites.
Finally, this also renames the lit folder to `test` to match the LLVM
repository layout.
Differential revision: https://reviews.llvm.org/D68606
llvm-svn: 374184
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