[all-commits] [llvm/llvm-project] db1e84: [lld-macho] Handle error cases properly for -expor...

[Greg McGary via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: db1e845a9646fb191109588ad58ee9ea6ea160a2
      https://github.com/llvm/llvm-project/commit/db1e845a9646fb191109588ad58ee9ea6ea160a2
  Author: Greg McGary <gkm at fb.com>
  Date:   2021-03-16 (Tue, 16 Mar 2021)

  Changed paths:
    M lld/MachO/Config.h
    M lld/MachO/Driver.cpp
    M lld/MachO/SymbolTable.cpp
    M lld/MachO/SymbolTable.h
    M lld/MachO/SyntheticSections.cpp
    M lld/test/MachO/export-options.s

  Log Message:
  -----------
  [lld-macho] Handle error cases properly for -exported_symbol(s_list)

This fixes defects in D98223 [lld-macho] implement options -(un)exported_symbol(s_list):
* disallow export of hidden symbols
* verify that whitelisted literal names are defined in the symbol table
* reflect export-status overrides in `nlist` attribute of `N_EXT` or `N_PEXT`

Thanks to @thakis for raising these issues

Differential Revision: https://reviews.llvm.org/D98381