From 2bf1f4a12e3577f7483aaa185c6917d8ba94a9bc Mon Sep 17 00:00:00 2001 From: Jim Blandy Date: Tue, 10 Jul 2001 21:15:28 +0000 Subject: * valops.c (value_cast): When casting a pointer to an integer, don't convert it to an address. --- gdb/valops.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'gdb/valops.c') diff --git a/gdb/valops.c b/gdb/valops.c index 7cc025d..dc987c4 100644 --- a/gdb/valops.c +++ b/gdb/valops.c @@ -281,7 +281,18 @@ value_cast (struct type *type, register value_ptr arg2) break; /* fall out and go to normal handling */ } } - longest = value_as_long (arg2); + + /* When we cast pointers to integers, we mustn't use + POINTER_TO_ADDRESS to find the address the pointer + represents, as value_as_long would. GDB should evaluate + expressions just as the compiler would --- and the compiler + sees a cast as a simple reinterpretation of the pointer's + bits. */ + if (code2 == TYPE_CODE_PTR) + longest = extract_unsigned_integer (VALUE_CONTENTS (arg2), + TYPE_LENGTH (type2)); + else + longest = value_as_long (arg2); return value_from_longest (type, convert_to_boolean ? (LONGEST) (longest ? 1 : 0) : longest); } -- cgit v1.1