tree b9798a06c68528cd5bb20a71c6b7a6d9e4376320
parent d750afe6ce7dc23dd76374ba4e2f81fcd758b6ce
author Xing Xue <xingxue@outlook.com> 1624485250 -0400
committer Copybara-Service <copybara-worker@google.com> 1624989688 -0700

[libc++abi][AIX] Enable calculating addresses with DW_EH_PE_datarel

Summary:
This patch enables calculating relative addresses with the DW_EH_PE_datarel encoding using a 'base' for AIX. After setting registers for jumping to the user code in gxx_personality_v0(), 'base' is cached in exception_header member catchTemp for use in __cxa_call_unexpected if ttypeIndex is less than 0 (exception spec).

Reviewed by: MaskRay, sfertile, compnerd, libc++abi

Differential Revision: https://reviews.llvm.org/D101298

GitOrigin-RevId: afd3607c8f369a4f1989387cb1eed35976968c89