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TestNoreturnUnwind fails on arm/aarch32 linux targets.
Bug is already described for x86_64 android targets in llvm.org/pr31192.
llvm-svn: 290821
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llvm-svn: 288032
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Reviewers: clayborg, labath
Subscribers: jaydeep, bhushan, slthakur, lldb-commits
Differential Revision: https://reviews.llvm.org/D24122
llvm-svn: 281031
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*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
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Summary:
The issue arises due to the wrong unwinder used for the first
stack frame, where the default unwinder returns erroneous frame
whereas the fallback would have given the correct frame had it
been used.
The following fix consists of two parts ->
1) The first part changes the unwinding strategy, earlier the
default unwinder was used to get 2 more stack frames and if it
failed a fallback unwinder was used. Now we try to obtain as many
frames (max 10) as we can get from default unwinder and also
fallback unwinder and use the one that gives more number of frames.
2) Normally unwindplans are assosciated with functions and the
row to be used is obtained from the offset (obtained from the low_pc
of the function symbol). Sometimes it may occur that the unwindplan
is assosciated to the complete Elf section in which case the offset
calculation would be wrong as the debugger uses the same offset originally
obtained from the function symbol. Hence this offset is recalculated.
Reviewers: tberghammer, lldb-commits, labath, jasonmolenda
Subscribers: jingham
Differential Revision: http://reviews.llvm.org/D21221
llvm-svn: 274750
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llvm-svn: 259838
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Summary:
The issue arises because LLDB is not
able to read the vdso library correctly.
The fix adds memory allocation callbacks
to allocate sufficient memory in case the
requested offsets don't fit in the memory
buffer allocated for the ELF.
Reviewers: lldb-commits, clayborg, deepak2427, ovyalov, labath, tberghammer
Differential Revision: http://reviews.llvm.org/D16107
llvm-svn: 258122
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Summary:
The testcase TestNoreturnUnwind.py was failing
because the unwind from the vdso library was not
successful for clang compiler while it was passing
for gcc. It was passing for gcc since the unwind plan
used was the assembly plan and the ebp register was
set by the main function in case of gcc and was not
used by the functions in the call flow to the vdso, whereas
clang did not emit assembly prologue for main and so
the assembly unwind was failing. Normally in case of
failure of assembly unwind, lldb switches to EH CFI frame
based unwinding, but this was not happening for
the first frame. This patch tries to fix this behaviour by
falling to EH CFI frame based unwinding in case of assembly
unwind failure even for the first frame.
The test is still marked as XFAIL since it relys on the fix
of another bug.
Reviewers: lldb-commits, jingham, zturner, tberghammer, jasonmolenda
Subscribers: jasonmolenda
Differential Revision: http://reviews.llvm.org/D15046
llvm-svn: 257465
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Reviewed By: Tamas Berghammer, Pavel Labath
Differential Revision: http://reviews.llvm.org/D15428
llvm-svn: 255525
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This module was originally intended to be imported by top-level
scripts to be able to find the LLDB packages and third party
libraries. Packages themselves shouldn't need to import it,
because by the time it gets into the package, the top-level
script should have already done this. Indeed, it was just
adding the same values to sys.path multiple times, so this
patch is essentially no functional change.
To make sure it doesn't get re-introduced, we also delete the
`use_lldb_suite` module from `lldbsuite/test`, although the
original copy still remains in `lldb/test`
llvm-svn: 251963
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For convenience, we had added the folder that dotest.py was in
to sys.path, so that we could easily write things like
`import lldbutil` from anywhere and any test. This introduces
a subtle problem when using Python's package system, because when
unittest2 imports a particular test suite, the test suite is detached
from the package. Thus, writing "import lldbutil" from dotest imports
it as part of the package, and writing the same line from a test
does a fresh import since the importing module was not part of
the same package.
The real way to fix this is to use absolute imports everywhere. Instead
of writing "import lldbutil", we need to write "import
lldbsuite.test.util". This patch fixes up that and all other similar
cases, and additionally removes the script directory from sys.path
to ensure that this can't happen again.
llvm-svn: 251886
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This is the conclusion of an effort to get LLDB's Python code
structured into a bona-fide Python package. This has a number
of benefits, but most notably the ability to more easily share
Python code between different but related pieces of LLDB's Python
infrastructure (for example, `scripts` can now share code with
`test`).
llvm-svn: 251532
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