commit 62c420f1286fde6dfa9c0bdf3f052b189b14e6a4
author David Spickett <david.spickett@linaro.org> Fri Nov 26 15:16:03 2021 +0000
committer Copybara-Service <copybara-worker@google.com> Fri Nov 26 07:41:10 2021 -0800
tree 322954455160573e01cb704dde831450ed90f73f
parent 482729197e706a24554543f30d12bd1876a425a4

Revert "Reland "[lldb] Remove non address bits when looking up memory regions""

This reverts commit fac3f20de55769d028bd92220e74f22fa57dd4b2.

I found this has broken how we detect the last memory region in
GetMemoryRegions/"memory region" command.

When you're debugging an AArch64 system with pointer authentication,
the ABI plugin will remove the top bit from the end address of the last
user mapped area.

(lldb)
[0x0000fffffffdf000-0x0001000000000000) rw- [stack]

ABI plugin removes anything above the 48th bit (48 bit virtual addresses
by default on AArch64, leaving an address of 0.

(lldb)
[0x0000000000000000-0x0000000000400000) ---

You get back a mapping for 0 and get into an infinite loop.

GitOrigin-RevId: 0df522969a7a0128052bd79182c8d58e00556e2f