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| author | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2023-01-23 11:13:18 +0000 |
|---|---|---|
| committer | Srinath Parvathaneni <srinath.parvathaneni@arm.com> | 2023-01-23 11:16:26 +0000 |
| commit | 55a2d8096a799c682922b03bef7c0d4e4c1c8d7b (patch) | |
| tree | b24a2615e7f89c7ca433fa2b63d295b5e1e962be /gcc/fortran | |
| parent | 273874e925a544d96b8a9999d4c870c1f5191eeb (diff) | |
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arm: Add support for new frame unwinding instruction "0xb5".
This patch adds support for Arm frame unwinding instruction "0xb5" [1]. When
an exception is taken and "0xb5" instruction is encounter during runtime
stack-unwinding, we use effective vsp as modifier in pointer authentication.
On completion of stack unwinding if "0xb5" instruction is not encountered
then CFA will be used as modifier in pointer authentication.
[1] https://github.com/ARM-software/abi-aa/releases/download/2022Q3/ehabi32.pdf
libgcc/ChangeLog:
2022-11-09 Srinath Parvathaneni <srinath.parvathaneni@arm.com>
* config/arm/pr-support.c (__gnu_unwind_execute): Decode opcode
"0xb5".
Diffstat (limited to 'gcc/fortran')
0 files changed, 0 insertions, 0 deletions