[dmd-internals] [D-Programming-Language/dmd] f8bcda: fix Issue 13117 - Executable size of hello world e...

GitHub via dmd-internals dmd-internals at puremagic.com
Thu Jul 17 00:18:18 PDT 2014


  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: f8bcda05a8193c4180815d067713cf4b6e7884bf
      https://github.com/D-Programming-Language/dmd/commit/f8bcda05a8193c4180815d067713cf4b6e7884bf
  Author: Martin Nowak <code at dawg.eu>
  Date:   2014-07-17 (Thu, 17 Jul 2014)

  Changed paths:
    M src/backend/elfobj.c

  Log Message:
  -----------
  fix Issue 13117 - Executable size of hello world explodes from 472K to 2.7M

- This problem seems to stem from mixed writeable flags for the
  .deh/.minfo sections in PIC/non-PIC code. The ld.bfd linker would
  still try to bracket the sections, even though it previously mapped
  them to different segments, thereby creating one huge segment which
  contains all read-only and all writeable data plus the big hole in
  between them.

- fixed by always marking those sections as writeable


  Commit: 528e49d77fee84581fa9f055ef1ebd5c765ee469
      https://github.com/D-Programming-Language/dmd/commit/528e49d77fee84581fa9f055ef1ebd5c765ee469
  Author: Martin Nowak <code at dawg.eu>
  Date:   2014-07-17 (Thu, 17 Jul 2014)

  Changed paths:
    A test/runnable/test13117.d
    A test/runnable/test13117b.d

  Log Message:
  -----------
  regression tests for binary size

- test will fail when binaries increase by about 10%
  above the current size


  Commit: 5f3a83a890a3e3f106e89d5423993eae9945dc3b
      https://github.com/D-Programming-Language/dmd/commit/5f3a83a890a3e3f106e89d5423993eae9945dc3b
  Author: Walter Bright <walter at walterbright.com>
  Date:   2014-07-17 (Thu, 17 Jul 2014)

  Changed paths:
    M src/backend/elfobj.c
    A test/runnable/test13117.d
    A test/runnable/test13117b.d

  Log Message:
  -----------
  Merge pull request #3778 from MartinNowak/fix13117

fix Issue 13117 - Executable size of hello world explodes from 472K to 2.7M


Compare: https://github.com/D-Programming-Language/dmd/compare/db51609c3c74...5f3a83a890a3


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