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lld in 2bfee35 started emitting relocations for some intra-section jumps
between global symbols. This shifted the code around a bit, invalidating
text expectations.
Change the symbols to local to keep the previous behavior.
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I'm unable to get this test working there.
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It does not seem to run automatically on windows.
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D71372 introduced: `Unwind/thread-step-out-ret-addr-check.test` failing on
Fedora 30 Linux x86_64.
[lldb] Add additional validation on return address in 'thread step-out'
https://reviews.llvm.org/D71372
One problem is the underscored `_nonstandard_stub` in the `.s` file but not in
the LLDB command:
(lldb) breakpoint set -n nonstandard_stub
Breakpoint 1: no locations (pending).
WARNING: Unable to resolve breakpoint to any actual locations.
(lldb) process launch
Process 21919 exited with status = 0 (0x00000000)
Process 21919 launched: '/home/jkratoch/redhat/llvm-monorepo-clangassert/tools/lldb/test/Unwind/Output/thread-step-out-ret-addr-check.test.tmp' (x86_64)
(lldb) thread step-out
error: invalid thread
(lldb) _
Another problem is that Fedora Linux has executable stack by default and all
programs indicate non-executable stack by `PT_GNU_STACK`, after fixing the
underscore I was getting:
(lldb) thread step-out
Process 22294 exited with status = 0 (0x00000000)
(lldb) _
A different approach was tried as:
[lldb] Refactor thread-step-out-ret-addr-check test to use .data instead of stack variable
https://reviews.llvm.org/D71789
Differential revision: https://reviews.llvm.org/D71784
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systems.
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Previously, if the current function had a nonstandard stack layout/ABI, and had a valid
data pointer in the location where the return address is usually located, data corruption
would occur when the breakpoint was written. This could lead to an incorrectly reported
crash or silent corruption of the program's state. Now, if the above check fails, the command safely aborts.
Differential Revision: https://reviews.llvm.org/D71372
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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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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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