[dmd-internals] [D-Programming-Language/dmd] 313132: new runtime registration for executables and share...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/dmd
  Commit: 313132b6e20c119fa64c6164574818421cb522ce
      https://github.com/D-Programming-Language/dmd/commit/313132b6e20c119fa64c6164574818421cb522ce
  Author: Martin Nowak <dawg at dawgfoto.de>
  Date:   2012-10-18 (Thu, 18 Oct 2012)

  Changed paths:
    M src/backend/elfobj.c
    M src/backend/melf.h

  Log Message:
  -----------
  new runtime registration for executables and shared libraries

- Put ModuleInfos and EH tables in bracketed sections. This
  works because the linker will preserve the order of first
  occurence for non-standard sections. Use local zero sized
  symbols as brackets to refer to the start and end.

- Pass ModuleInfos along with EH tables to a new druntime
  function _d_dso_registry. We output a function, a ctor
  entry, a dtor entry and a local data record in a COMDAT
  section group. The linker will merge multiple occurences
  per executable/shared library, thus resulting in only one
  registration.

- We can't create brackets for .bss, .data, .tbss and .tdata
  as these sections are already known to the linker. Thus it
  would merge input sections in link order. Creating custom
  input sections for those is not desirable because COMDAT
  through section prefixes (.data.TypeInfo) won't get merged
  into a single output section. The needed segments can be
  obtained by reading the program headers.

- Until REQUIRE_DSO_REGISTRY is set in elfobj.c any
  generated object remains compatible with the old mechanism
  that uses global bracket symbols.


  Commit: d64c579ea87b9c4f511b13a2a0bcc109ce1f7f1b
      https://github.com/D-Programming-Language/dmd/commit/d64c579ea87b9c4f511b13a2a0bcc109ce1f7f1b
  Author: dawg <dawg at dawgfoto.de>
  Date:   2012-10-18 (Thu, 18 Oct 2012)

  Changed paths:
    M test/runnable/testthread.d

  Log Message:
  -----------
  fix TLS layout in test


  Commit: a1cda0731007443b893efd26fb51f54efb8e1f1d
      https://github.com/D-Programming-Language/dmd/commit/a1cda0731007443b893efd26fb51f54efb8e1f1d
  Author: Walter Bright <walter at walterbright.com>
  Date:   2012-10-18 (Thu, 18 Oct 2012)

  Changed paths:
    M src/backend/elfobj.c
    M src/backend/melf.h
    M test/runnable/testthread.d

  Log Message:
  -----------
  Merge pull request #1043 from dawgfoto/SharedRuntime

new runtime registration for executables and shared libraries


Compare: https://github.com/D-Programming-Language/dmd/compare/881f9fcb7405...a1cda0731007