1. 18 Jul, 2019 10 commits
  2. 17 Jul, 2019 15 commits
  3. 16 Jul, 2019 13 commits
  4. 15 Jul, 2019 2 commits
    • Brad King's avatar
      Tests: Drop RunCMake workaround for AIX ld warnings about GNU atexit · c2c3d225
      Brad King authored
      Drop the filtering added by commit e22c45d4 (Tests: Teach RunCMake to
      ignore AIX ld warnings about GNU atexit, 2018-02-28, v3.12.0-rc1~419^2~6).
      It is no longer needed now that we compute our own exports on AIX and
      do not get these warnings when using shared libraries.
      c2c3d225
    • Brad King's avatar
      AIX: Explicitly compute executable exports for both XL and GNU · 9f5c2040
      Brad King authored
      On AIX, symbols in executables must be exported in order to be visible
      to modules (plugins) they load via `dlopen`.  Prior to policy `CMP0065`,
      CMake linked all executables with flags to export symbols, but the NEW
      behavior for that policy is to do so only for executables that have the
      `ENABLE_EXPORTS` target property set.  In both cases, CMake has always
      used the AIX linker option `-bexpall` option to export symbols from
      executables.
      
      This has worked fairly well with the XL compiler, but with the GNU
      compiler it works only for C ABI symbols.  The reason is that `-bexpall`
      does not export symbols starting in `_` but the GNU C++ ABI mangles all
      symbols with a leading `_`.  Therefore we have only supported C ABI
      plugins with the GNU compiler on AIX.  Some projects have tried to work
      around this by replacing `-bexpall` with `-bexpfull`, but the latter
      often exports symbols that we do not want exported.
      
      Avoid using `-bexpall` for executables by instead using by our own
      internal `ExportImportList` script to compute symbol export lists from
      the object files to be linked into an executable.  Pass the explicitly
      computed export list to the AIX linker's `-bE:...` option.  We already
      do this for shared object exports.
      
      Issue: #19163
      9f5c2040