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| author | Joel Brobecker <brobecker@gnat.com> | 2010-12-29 08:02:58 +0000 |
|---|---|---|
| committer | Joel Brobecker <brobecker@gnat.com> | 2010-12-29 08:02:58 +0000 |
| commit | 237fdcbd30b5d8d69b6fb8bd2e4333541843f8f0 (patch) | |
| tree | ee1748ce280d93d915d40becb75dc67e4c297926 /gdb/testsuite | |
| parent | 4b88473c312f66c7fba0c1a5d862cd5f95b732c2 (diff) | |
| download | gdb-237fdcbd30b5d8d69b6fb8bd2e4333541843f8f0.tar.gz | |
[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.
Diffstat (limited to 'gdb/testsuite')
| -rw-r--r-- | gdb/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.ada/arrayptr.exp | 1 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.ada/arrayptr/foo.adb | 2 |
3 files changed, 8 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 5124dbb8b65..4580f60021b 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2010-12-29 Joel Brobecker <brobecker@adacore.com> + * gdb.ada/arrayptr/foo.adb: Add new local variable Null_String. + * gdb.ada/arrayptr.exp: Add test printing that new variable. + +2010-12-29 Joel Brobecker <brobecker@adacore.com> + * gdb.ada/lang_switch.exp: Correct expected parameter value. 2010-12-25 Andreas Schwab <schwab@linux-m68k.org> diff --git a/gdb/testsuite/gdb.ada/arrayptr.exp b/gdb/testsuite/gdb.ada/arrayptr.exp index 0f450a0f476..43a04c1c064 100644 --- a/gdb/testsuite/gdb.ada/arrayptr.exp +++ b/gdb/testsuite/gdb.ada/arrayptr.exp @@ -44,3 +44,4 @@ gdb_test "print string_p" \ "= \\(foo\\.string_access\\) 0x\[0-9a-zA-Z\]+" \ "print string_p" +gdb_test "print null_string" "= \\(foo\\.string_access\\) 0x0" diff --git a/gdb/testsuite/gdb.ada/arrayptr/foo.adb b/gdb/testsuite/gdb.ada/arrayptr/foo.adb index 8cedd870138..c11ccfb2a86 100644 --- a/gdb/testsuite/gdb.ada/arrayptr/foo.adb +++ b/gdb/testsuite/gdb.ada/arrayptr/foo.adb @@ -19,6 +19,8 @@ procedure Foo is type String_Access is access String; String_P : String_Access := new String'("Hello"); + Null_String : String_Access := null; begin Do_Nothing (String_P'Address); -- STOP + Do_Nothing (Null_String'Address); end Foo; |