1. 07 Sep, 2012 1 commit
    • Paul Eggert's avatar
      Signal-handler cleanup. · 2fe28299
      Paul Eggert authored
      Emacs's signal handlers were written in the old 4.2BSD style with
      sigblock and sigmask and so forth, and this led to some
      inefficiencies and confusion.  Rewrite these to use
      pthread_sigmask etc. without copying signal sets around.  Also,
      get rid of the confusing macros 'SIGNAL_THREAD_CHECK' and
      'signal', and instead use functions that do not attempt to take
      over the system name space.  This patch causes Emacs's text
      segment to shrink by 0.7% on my platform, Fedora 17 x86-64.
      * configure.ac (PTY_OPEN, PTY_TTY_NAME_SPRINTF):
      Adjust to syssignal.h changes.
      (SIGNAL_H_AB): Remove; no longer needed.
      * src/alloc.c, src/emacsgtkfixed.c, src/nsfns.m, src/widget.c, src/xmenu.c:
      Do not include <signal.h> or "syssignal.h", as these
      modules do not use signals.
      * src/atimer.c, src/callproc.c, src/data.c, src/dispnew.c, src/emacs.c:
      * src/floatfns.c, src/gtkutil.c, src/keyboard.c, src/process.c, src/sound.c:
      * src/sysdep.c, src/term.c, src/xterm.c:
      Do not include <signal.h>, as "syssignal.h" does that for us now.
      * src/atimer.c (sigmask_atimers): New function.
      (block_atimers, unblock_atimers): New functions,
      replacing the old macros BLOCK_ATIMERS and UNBLOCK_ATIMERS.
      All uses replaced.
      * src/conf_post.h [SIGNAL_H_AHB]: Do not include <signal.h>;
      no longer needed here.
      * src/emacs.c (main): Inspect existing signal handler with sigaction,
      so that there's	no need to block and unblock SIGHUP.
      * src/sysdep.c (struct save_signal): New member 'action', replacing
      old member 'handler'.
      (save_signal_handlers, restore_signal_handlers):
      Use sigaction instead of 'signal' to save and restore.
      (get_set_sighandler, set_sighandler) [!WINDOWSNT]:
      New function.  All users of 'signal' modified to use set_sighandler
      if they're writeonly, and to use sys_signal if they're read+write.
      (emacs_sigaction_init, forwarded_signal): New functions.
      (sys_signal): Remove.  All uses replaced by calls to sigaction
      and emacs_sigaction_init, or by direct calls to 'signal'.
      (sys_sigmask) [!__GNUC__]: Remove; no longer needed.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove;
      all uses replaced by pthread_sigmask etc. calls.
      * src/syssignal.h: Include <signal.h>.
      (emacs_sigaction_init, forwarded_signal): New decls.
      (SIGMASKTYPE): Remove.  All uses replaced by its definiens, sigset_t.
      (SIGEMPTYMASK): Remove; all uses replaced by its definiens, empty_mask.
      (sigmask, sys_sigmask): Remove; no longer needed.
      (sigpause): Remove.  All uses replaced by its definiens, sigsuspend.
      (sigblock, sigunblock, sigfree):
      (sigsetmask) [!defined sigsetmask]:
      Remove.  All uses replaced by pthread_sigmask.
      (signal): Remove.  Its remaining uses (with SIG_DFL and SIG_IGN)
      no longer need to be replaced, and its typical old uses
      are now done via emacs_sigaction_init and sigaction.
      (sys_sigblock, sys_sigunblock, sys_sigsetmask): Remove decls.
      (sys_sigdel): Remove; unused.
      (NSIG): Remove a FIXME; the code's fine.  Remove an unnecessary ifdef.
      
      Fixes: debbugs:12327
      2fe28299
  2. 04 Sep, 2012 2 commits
    • Paul Eggert's avatar
      Simplify redefinition of 'abort' (Bug#12316). · 1088b922
      Paul Eggert authored
      Do not try to redefine the 'abort' function.  Instead, redo
      the code so that it calls 'emacs_abort' rather than 'abort'.
      This removes the need for the NO_ABORT configure-time macro
      and makes it easier to change the abort code to do a backtrace.
      * configure.ac (NO_ABRT): Remove.
      * admin/CPP-DEFINES (NO_ABORT): Remove.
      * nt/inc/ms-w32.h (w32_abort) [HAVE_NTGUI]: Remove.
      * src/.gdbinit: Just stop at emacs_abort, not at w32_abort or abort.
      * src/emacs.c (abort) [!DOS_NT && !NO_ABORT]:
      Remove; sysdep.c's emacs_abort now takes its place.
      * src/lisp.h (emacs_abort): New decl.  All calls from Emacs code to
      'abort' changed to use 'emacs_abort'.
      * src/msdos.c (dos_abort) [defined abort]: Remove; not used.
      (abort) [!defined abort]: Rename to ...
      (emacs_abort): ... new name.
      * src/sysdep.c (emacs_abort) [!HAVE_NTGUI]: New function, taking
      the place of the old 'abort' in emacs.c.
      * src/w32.c, src/w32fns.c (abort): Do not #undef.
      * src/w32.c (emacs_abort): Rename from w32_abort.
      1088b922
    • Paul Eggert's avatar
      * configure.ac (_setjmp, _longjmp): Check by compiling · 7b6c362e
      Paul Eggert authored
      instead of by guessing.  The guesses were wrong for
      recent versions of Solaris, such as Solaris 11.
      7b6c362e
  3. 03 Sep, 2012 1 commit
  4. 02 Sep, 2012 1 commit
  5. 01 Sep, 2012 2 commits
  6. 26 Aug, 2012 1 commit
  7. 20 Aug, 2012 1 commit
  8. 17 Aug, 2012 2 commits
  9. 15 Aug, 2012 1 commit
  10. 10 Aug, 2012 2 commits
    • Glenn Morris's avatar
      Comments · 0aa8781f
      Glenn Morris authored
      0aa8781f
    • Glenn Morris's avatar
      Move DIRECTORY_SEP from lisp.h to config.h · 9374581a
      Glenn Morris authored
      * configure.ac (DIRECTORY_SEP): Move here from src/lisp.h.
      
      * src/lisp.h (DIRECTORY_SEP): Let configure set it.
      
      * nt/config.nt (DIRECTORY_SEP): Move here from src/lisp.h.
      
      * lib-src/movemail.c (DIRECTORY_SEP, IS_DIRECTORY_SEP):
      * lib-src/make-docfile.c (DIRECTORY_SEP, IS_DIRECTORY_SEP):
      * lib-src/emacsclient.c (DIRECTORY_SEP, IS_DIRECTORY_SEP, IS_DEVICE_SEP):
      Remove (they are in config.h now).
      9374581a
  11. 08 Aug, 2012 2 commits
  12. 07 Aug, 2012 2 commits
  13. 06 Aug, 2012 2 commits
    • Glenn Morris's avatar
      Guard against potential configure bug wrt HAVE_GETWD · 1db4583a
      Glenn Morris authored
      * configure.ac (BROKEN_GETWD) [unixware]: New define.
      
      * src/sysdep.c: Respect BROKEN_GETWD.
      1db4583a
    • Glenn Morris's avatar
      Remove GNU_LIBRARY_PENDING_OUTPUT_COUNT · 1c6f11f4
      Glenn Morris authored
      * configure.ac (GNU_LIBRARY_PENDING_OUTPUT_COUNT): Remove.
      (PENDING_OUTPUT_COUNT): Absorb GNU_LIBRARY_PENDING_OUTPUT_COUNT.
      (DISPNEW_NEEDS_STDIO_EXT): New define.
      
      * src/dispnew.c (GNU_LIBRARY_PENDING_OUTPUT_COUNT, PENDING_OUTPUT_COUNT):
      Let configure handle it.
      (stdio_ext.h) [DISPNEW_NEEDS_STDIO_EXT]: Include it.
      
      * nt/config.nt (GNU_LIBRARY_PENDING_OUTPUT_COUNT): Remove.
      (PENDING_OUTPUT_COUNT): Define it as dispnew.c used to.
      
      * admin/CPP-DEFINES (GNU_LIBRARY_PENDING_OUTPUT_COUNT): Remove.
      1c6f11f4
  14. 05 Aug, 2012 1 commit
  15. 03 Aug, 2012 1 commit
  16. 02 Aug, 2012 1 commit
    • Paul Eggert's avatar
      Port to Solaris 8. · 13294f95
      Paul Eggert authored
      Without this change, 'configure' fails because the recently-added
      wait3 prototype in config.h messes up later 'configure' tests.
      Fix this problem by droping wait3 and WRETCODE, as they're
      no longer needed on hosts that are current porting targets.
      * configure.ac (wait3, WRETCODE): Remove, fixing a FIXME.
      All uses changed to waitpid and WEXITSTATUS.
      * src/syswait.h (WRETCODE): Remove, consistently with ../configure.ac.
      13294f95
  17. 01 Aug, 2012 5 commits
  18. 31 Jul, 2012 12 commits