| 976867b5 | 10-Nov-2021 |
Med Ismail Bennani <[email protected]> |
[lldb/test] Update TestScriptedProcess to use skinny corefiles
This patch changes the ScriptedProcess test to use a stack-only skinny
corefile as a backing store.
The corefile is saved as a tempora
[lldb/test] Update TestScriptedProcess to use skinny corefiles
This patch changes the ScriptedProcess test to use a stack-only skinny
corefile as a backing store.
The corefile is saved as a temporary file at the beginning of the test,
and a second target is created for the ScriptedProcess. To do so, we use
the SBAPI from the ScriptedProcess' python script to interact with the
corefile process.
This patch also makes some small adjustments to the other ScriptedProcess
scripts to resolve some inconsistencies and removes the raw memory dump
that was previously checked in.
Differential Revision: https://reviews.llvm.org/D112047
Signed-off-by: Med Ismail Bennani <[email protected]>
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| a758c9f7 | 08-Oct-2021 |
Med Ismail Bennani <[email protected]> |
[lldb/Plugins] Add memory region support in ScriptedProcess
This patch adds support for memory regions in Scripted Processes.
This is necessary to read the stack memory region in order to
reconstruc
[lldb/Plugins] Add memory region support in ScriptedProcess
This patch adds support for memory regions in Scripted Processes.
This is necessary to read the stack memory region in order to
reconstruct each stackframe of the program.
In order to do so, this patch makes some changes to the SBAPI, namely:
- Add a new constructor for `SBMemoryRegionInfo` that takes arguments
such as the memory region name, address range, permissions ...
This is used when reading memory at some address to compute the offset
in the binary blob provided by the user.
- Add a `GetMemoryRegionContainingAddress` method to `SBMemoryRegionInfoList`
to simplify the access to a specific memory region.
With these changes, lldb is now able to unwind the stack and reconstruct
each frame. On top of that, reloading the target module at offset 0 allows
lldb to symbolicate the `ScriptedProcess` using debug info, similarly to an
ordinary Process.
To test this, I wrote a simple program with multiple function calls, ran it in
lldb, stopped at a leaf function and read the registers values and copied
the stack memory into a binary file. These are then used in the python script.
Differential Revision: https://reviews.llvm.org/D108953
Signed-off-by: Med Ismail Bennani <[email protected]>
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