[PATCH] D118494: [lldb] Observe SG_READ_ONLY flag in MachO binaries

Fri Jan 28 15:58:24 PST 2022

kastiglione added inline comments.

================
Comment at: lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp:1436
     result |= ePermissionsReadable;
-  if (seg_cmd.initprot & VM_PROT_WRITE)
+  if ((seg_cmd.initprot & VM_PROT_WRITE) && !(seg_cmd.flags & SG_READ_ONLY))
     result |= ePermissionsWritable;
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augusto2112 wrote:
> Could we add a new value in the enumeration? Something like ePermissionsLinkerWritable? As it is right now this would be dangerous for the existing file-cache optimization as we'd happily read pointers that are supposed to be fixed by the linker from the file-cache.
That works for me. I think we'd want `ePermissionsLoaderWritable`.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D118494/new/

https://reviews.llvm.org/D118494