src/gdb ChangeLog ada-valprint.c testsuite/Cha ...

[brobecke at sourceware dot org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	brobecke@sourceware.org	2010-12-29 08:02:59

Modified files:
	gdb            : ChangeLog ada-valprint.c 
	gdb/testsuite  : ChangeLog 
	gdb/testsuite/gdb.ada: arrayptr.exp 
	gdb/testsuite/gdb.ada/arrayptr: foo.adb 

Log message:
	[Ada] print null array pointer as `0x0' rather than `(null)'
	
	Trying to print a variable defined as an access to an unconstrained
	array:
	
	type String_Access is access String;
	S1 : String_Access;
	
	If that variable is null, then GDB prints its value in an odd way:
	
	(gdb) print S1
	$1 = (string_bug.string_access) (null)
	^^^^^^
	
	This patch changes the debugger behavior to print the pointer using
	the same output we'd use for any null pointer:
	
	(gdb) print S1
	$1 = (string_bug.string_access) 0x0
	
	It also adds an assert, helping us verify an assumption.
	
	gdb/ChangeLog:
	
	* ada-valprint.c (ada_val_print_1): Print null array pointers as
	`0x0' rather than `(null)'.  Add assertion.
	
	gdb/testsuite/ChangeLog:
	
	* gdb.ada/arrayptr/foo.adb: Add new local variable Null_String.
	* gdb.ada/arrayptr.exp: Add test printing that new variable.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.12413&r2=1.12414
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ada-valprint.c.diff?cvsroot=src&r1=1.68&r2=1.69
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.2534&r2=1.2535
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.ada/arrayptr.exp.diff?cvsroot=src&r1=1.4&r2=1.5
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.ada/arrayptr/foo.adb.diff?cvsroot=src&r1=1.3&r2=1.4