tree 71414ff8f696299f777ae89698df04961400e1f8
parent 17711a9a81788e5b124f89d46db5057c5b3945c2
author Lang Hames <lhames@gmail.com> 1663352588 -0700
committer Copybara-Service <copybara-worker@google.com> 1663360939 -0700

[ORC][ORC-RT][MachO] Reset __data and __common sections on library close.

If we want to be able to close and then re-open a library then we need to reset
the data section states when the library is closed. This commit updates
MachOPlatform and the ORC runtime to track __data and __common sections, and
reset the state in MachOPlatformRuntimeState::dlcloseDeinitialize.

This is only a first step to full support -- there are other data sections that
we're not capturing, and we'll probably want a more efficient representation
for the sections (rather than passing their string name over IPC), but this is
a reasonable first step.

This commit also contains a fix to MapperJITLinkMemoryManager that prevents it
from calling OnDeallocated twice in the case of an error.

GitOrigin-RevId: 47e9e588083493414d0abfbe33fe3566879c219b