Commit Graph

3 Commits

Author SHA1 Message Date
Lang Hames c85d0aaa2a [JITLink] Switch to slab allocation for InProcessMemoryManager, re-enable test.
InProcessMemoryManager used to make separate memory allocation calls for each
permission level (RW, RX, RO), which could lead to target-out-of-range errors
if data and code were placed too far apart (this was the source of failures in
the JITLink/AArch64 testcase when it was first landed).

This patch updates InProcessMemoryManager to allocate a single slab which is
subdivided between text and data. This should guarantee that accesses remain
in-range provided that individual object files do not exceed 1Mb in size.
This patch also re-enables the JITLink/AArch64 testcase.

llvm-svn: 374948
2019-10-15 21:06:57 +00:00
Lang Hames e5c61cee44 [JITLink] Disable the MachO/AArch64 testcase while investigating bot failures.
The windows bots are failing due to a memory layout error. Temporarily disabling
while I investigate whether this can be worked around, or whether the test
should be disabled on Windows.

llvm-svn: 374500
2019-10-11 01:58:12 +00:00
Lang Hames 3cc04f6a41 [JITLink] Add an initial implementation of JITLink for MachO/AArch64.
This implementation has support for all relocation types except TLV.

Compact unwind sections are not yet supported, so exceptions/unwinding will not
work.

llvm-svn: 374476
2019-10-10 23:37:51 +00:00