Re: Fix assert.h on darwin (before 8.0)

[Andrew Pinski <pinskia@physics.uc.edu>]

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On Nov 6, 2004, at 6:46 PM, Joseph S. Myers wrote:

> On Sat, 6 Nov 2004, Andrew Pinski wrote:
>
>> Darwin (before 8) has a very messed up assert.h and uses __eprintf
>> which is very wrong.  This patch fixes that by adding an assert.h
>> which does not use __eprintf at all.
>
> Your assert.h doesn't seem to print either the text of the asserted
> expression or the name of the current function in the message, though 
> C99 requires both.

Looks like most asserts don't include the current function either
but what the hack, if doing an assert.h, better to do it right.
Also fixed in this version of the patch is making sure that we
don't match darwin10 which should have a fixed up assert.h already.

OK? Bootstrapped and tested on powerpc-darwin7.6.0.

This is now also known as PR 18383.

Thanks,
Andrew Pinski

ChangeLog:

	* config.gcc (*-*-darwin*): Add t-darwin-pre8 for pre
	darwin 8 targets.  Also fix matching for post darwin 7
	targets for the header file darwin7.h
	* config/t-darwin-pre8: New file. Add assert.h to the	EXTRA_HEADERS.
	* config/darwin-assert.h: New file. Assert.h for darwin.


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Index: config/darwin-assert.h
===================================================================
RCS file: config/darwin-assert.h
diff -N config/darwin-assert.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ config/darwin-assert.h	8 Nov 2004 21:26:04 -0000
@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+/* Allow this file to be included multiple times
+   with different settings of NDEBUG.  */
+#undef assert
+#undef __assert
+
+#ifdef NDEBUG
+#define assert(ignore) ((void) 0)
+#else
+
+#define assert(expression)  \
+  ((void) ((expression) ? 0 : __assert (#expression, __FUNCTION__, __FILE__, __LINE__)))
+
+#define __assert(expression, function, file, lineno)  \
+  (printf ("%s:%u: In `%s' failed assertion `%s'\n",		\
+	      file, lineno, function, expression),	\
+   abort (), 0)
+
+#endif
Index: config/t-darwin-pre8
===================================================================
RCS file: config/t-darwin-pre8
diff -N config/t-darwin-pre8
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ config/t-darwin-pre8	8 Nov 2004 21:26:04 -0000
@@ -0,0 +1,5 @@
+EXTRA_HEADERS += $(objdir)/darwininclude/assert.h
+$(objdir)/darwininclude/assert.h: $(srcdir)/config/darwin-assert.h
+	mkdir -p $(objdir)/darwininclude
+	cp $(srcdir)/config/darwin-assert.h $(objdir)/darwininclude/assert.h
+
Index: config.gcc
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.gcc,v
retrieving revision 1.495
diff -u -p -r1.495 config.gcc
--- config.gcc	21 Oct 2004 22:28:22 -0000	1.495
+++ config.gcc	8 Nov 2004 21:26:04 -0000
@@ -332,12 +332,16 @@ esac
 case ${target} in
 *-*-darwin*)
   case ${target} in
-    *-darwin[0-6]*) ;;
+    *-darwin[0-6] | *-darwin[0-6].*) ;;
     *) tm_file="${tm_file} darwin7.h" ;;
   esac
   tm_file="${tm_file} darwin.h"
   tm_p_file="${tm_p_file} darwin-protos.h"
   tmake_file="t-darwin t-slibgcc-darwin"
+  case ${target} in
+    *-darwin[0-7] | *-darwin[0-7].*) tmake_file="${tmake_file} t-darwin-pre8";;
+    *) ;;
+  esac
   target_gtfiles="\$(srcdir)/config/darwin.c"
   c_target_objs="darwin-c.o"
   cxx_target_objs="darwin-c.o"