[PATCH] D30901: [ELF] - Fill between executable sections with trap instructions

[George Rimar via Phabricator via llvm-commits]

grimar created this revision.

Currently, LLD leaves padding between executable sections as-is, so they are 0. 
That is not desirable. Disassemblers would interpret the sequences of 0 bytes at 
end of each function as machine instructions and print out bogus disassembly.

Patch adds filling of gaps between executable sections with one byte target 
specific trap instruction.

This is PR32227.


https://reviews.llvm.org/D30901

Files:
  ELF/LinkerScript.cpp
  ELF/LinkerScript.h
  ELF/OutputSections.cpp
  ELF/SyntheticSections.cpp
  ELF/Target.cpp
  ELF/Target.h
  test/ELF/linkerscript/excludefile.s
  test/ELF/linkerscript/sections-padding-exec.s
  test/ELF/sections-padding-exec-i686.s
  test/ELF/sections-padding-exec.s

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