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emacs/src/unexsol.c
Paul Eggert 0328b6de4a Port better to POSIX hosts lacking _setjmp.
* configure.ac (HAVE__SETJMP, HAVE_SIGSETJMP): New symbols.
(_setjmp, _longjmp): Remove.
* src/lisp.h: Include <setjmp.h> here, since we use its symbols here.
All instances of '#include <setjmp.h>' removed, if the
only reason for the instance was because "lisp.h" was included.
(sys_jmp_buf, sys_setjmp, sys_longjmp): New symbols.
Unless otherwise specified, replace all uses of jmp_buf, _setjmp,
and _longjmp with the new symbols.  Emacs already uses _setjmp if
available, so this change affects only POSIXish hosts that have
sigsetjmp but not _setjmp, such as some versions of Solaris and
Unixware.  (Also, POSIX-2008 marks _setjmp as obsolescent.)
* src/image.c (_setjmp, _longjmp) [HAVE_PNG && !HAVE__SETJMP]: New macros.
(png_load_body) [HAVE_PNG]:
(PNG_LONGJMP) [HAVE_PNG && PNG_LIBPNG_VER < 10500]:
(PNG_JMPBUF) [HAVE_PNG && PNG_LIBPNG_VER >= 10500]:
Use _setjmp and _longjmp rather than sys_setjmp and sys_longjmp,
since PNG requires jmp_buf.  This is the only exception to the
general rule that we now use sys_setjmp and sys_longjmp.
This exception is OK since this code does not change the signal
mask or longjmp out of a signal handler.

Fixes: debbugs:12446
2012-09-15 00:06:56 -07:00

30 lines
654 B
C

/* Trivial unexec for Solaris. */
#include <config.h>
#include "unexec.h"
#include <dlfcn.h>
#include "lisp.h"
#include "character.h"
#include "buffer.h"
#include "charset.h"
#include "coding.h"
void
unexec (const char *new_name, const char *old_name)
{
Lisp_Object data;
Lisp_Object errstring;
if (! dldump (0, new_name, RTLD_MEMORY))
return;
data = Fcons (build_string (new_name), Qnil);
synchronize_system_messages_locale ();
errstring = code_convert_string_norecord (build_string (dlerror ()),
Vlocale_coding_system, 0);
xsignal (Qfile_error,
Fcons (build_string ("Cannot unexec"), Fcons (errstring, data)));
}