diff options
| author | Keith Walker <keith.walker@arm.com> | 2020-03-26 09:40:28 +0000 |
|---|---|---|
| committer | Keith Walker <keith.walker@arm.com> | 2020-04-07 11:51:59 +0100 |
| commit | 01dc10774eb87bc2f114a0e2d77083dbec62226b (patch) | |
| tree | cafc26bc1c175ce85a068bb822b38bf453850659 /lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp | |
| parent | 08fab9ebecf72a682279d75489dc2460121cbeed (diff) | |
[ARM] unwinding .pad instructions missing in execute-only prologue
If the stack pointer is altered for local variables and we are generating
Thumb2 execute-only code the .pad directive is missing.
Usually the size of the adjustment is stored in a PC-relative location
and loaded into a register which is then added to the stack pointer.
However when we are generating execute-only code code the size of the
adjustment is instead generated using the MOVW/MOVT instruction pair.
As a by product of handling the execute-only case this also fixes an
existing issue that in the none execute-only case the .pad directive was
generated against the load of the constant to a register instruction,
instead of the instruction which adds the register to the stack pointer.
Differential Revision: https://reviews.llvm.org/D76849
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp')
0 files changed, 0 insertions, 0 deletions