From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cagney To: Eli Zaretskii Cc: gdb-patches@sources.redhat.com Subject: Re: [rfc/rfa:doc] INTEGER_TO_ADDRESS; Was: INTEGER_TO_ADDRESS(), thoughts? Date: Wed, 03 Oct 2001 13:29:00 -0000 Message-id: <3BBB751B.70601@cygnus.com> References: <3BA7F150.9060302@cygnus.com> <3BB0F62D.1080702@cygnus.com> <3BB8CA42.8030209@cygnus.com> <7458-Tue02Oct2001091222+0300-eliz@is.elta.co.il> X-SW-Source: 2001-10/msg00061.html > Since most of this sentence is in plural, I think it should start with > "When the users copy". Hmm, I changed it all to single. Along with the other tweeks I ended up with: + + @item INTEGER_TO_ADDRESS (@var{type}, @var{buf}) + @findex INTEGER_TO_ADDRESS + @cindex converting integers to addresses + Define this when the architecture needs to handle non-pointer to address + conversions specially. Converts that value to an address according to + the current architectures conventions. + + @emph{Pragmatics: When the user copies a well defined expression from + their source code and pass it, as a parameter, to @value{GDBN}'s + @code{print} command, they should get the same value as would have been + computed by the target program. Any deviation from this rule can cause + major confusion and annoyance, and needs to be justified carefully. In + other words, @value{GDBN} doesn't really have the freedom to do these + conversions in clever and useful ways. It has, however, been pointed + out that users aren't complaining about how @value{GDBN} casts integers + to pointers; they are complaining that they can't take an address from a + disassembly listing and give it to @code{x/i}. Adding an architecture + method like @code{INTEGER_TO_ADDRESS} certainly makes it possible for + @value{GDBN} to ``get it right'' in all circumstances.} + + @xref{Target Architecture Definition, , Pointers Are Not Always + Addresses}. hope its right, Andrew