Sergei Organov wrote:
Hello,
A short patch below ensures exit(), etc. prototypes are provided in
<stdlib.h> even when CYGINT_ISO_EXIT is undefined.
For me it solves the problem that I don't wish to use libc_startup
package, but do use exit()/abort() routines in applications. So the
situation is that application itself provides implementation of those
functions, while their declarations are expected to be found in the
<stdlib.h>.
Then you should add your own package and implement CYGINT_ISO_EXIT; or
declare them in your own application-specific header. Only OS definitions
should go in <stdlib.h>.
For eCos source base itself, it solves the following problem. If one
configures eCos, e.g., like is shown below, and tries to compile with
rather recent GCC (v.3+; old versions of GCC happened to declare exit()
internally), she gets the following error:
$ ecosconfig new sparc_leon
$ ecosconfig remove libc_startup
$ ecosconfig check
Target: sparc_leon
Template: default
Removed:
CYGPKG_LIBC_STARTUP
No conflicts
$ make
[...]
/home/osv/src/ecos/packages/language/c/libc/signals/current/src/siginit.cxx: In
function `void cyg_libc_signals_default_handler(int)':
/home/osv/src/ecos/packages/language/c/libc/signals/current/src/siginit.cxx:395:
error: `exit' undeclared (first use this function)
/home/osv/src/ecos/packages/language/c/libc/signals/current/src/siginit.cxx:395:
error: (Each undeclared identifier is reported only once for each function it
appears in.)
That's a separate problem due to failing to take into account CDL
dependencies. Fixed with the attached patch, checked in.
Jifl
Index: ChangeLog
===================================================================
RCS file: /cvs/ecos/ecos/packages/language/c/libc/signals/current/ChangeLog,v
retrieving revision 1.9
diff -u -5 -p -r1.9 ChangeLog
--- ChangeLog 26 Jun 2003 05:25:30 -0000 1.9
+++ ChangeLog 27 Sep 2007 15:29:09 -0000
@@ -1,5 +1,10 @@
+2007-09-27 Jonathan Larmour <[EMAIL PROTECTED]>
+
+ * src/siginit.cxx (cyg_libc_signals_default_handler): Handle case where
+ CYGINT_ISO_EXIT not available.
+
2003-06-26 Jonathan Larmour <[EMAIL PROTECTED]>
* include/signal.h: Remove unused definitions that had been used
for embryonic POSIX signals support.
Index: src/siginit.cxx
===================================================================
RCS file:
/cvs/ecos/ecos/packages/language/c/libc/signals/current/src/siginit.cxx,v
retrieving revision 1.3
diff -u -5 -p -r1.3 siginit.cxx
--- src/siginit.cxx 23 May 2002 23:07:09 -0000 1.3
+++ src/siginit.cxx 27 Sep 2007 15:29:09 -0000
@@ -54,10 +54,11 @@
//========================================================================
// CONFIGURATION
#include <pkgconf/libc_signals.h> // libc signals configuration
+#include <pkgconf/isoinfra.h> // isoinfra defs, including CYGINT_ISO_EXIT
// INCLUDES
#include <cyg/infra/cyg_type.h> // Common type definitions and support
#include <signal.h> // Main signals definitions
@@ -390,11 +391,15 @@ cyg_libc_signals_default_handler(int sig
{
CYG_REPORT_FUNCNAME( "cyg_libc_signals_default_handler" );
CYG_REPORT_FUNCARG1( "signal number = %d", sig );
+#if CYGINT_ISO_EXIT
exit(1000 + sig); // FIXME
+#else
+ CYG_FAIL("Default signal handler called - no exit available");
+#endif
CYG_REPORT_RETURN();
} // cyg_libc_signals_default_handler()
#ifdef CYGSEM_LIBC_SIGNALS_THREAD_SAFE
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