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Re: exp/1811: "set var x = y" doesn't work properly if sizeof(x) < sizeof(register)
- From: cagney at redhat dot com
- To: gdb-prs at sources dot redhat dot com, nobody at sources dot redhat dot com, tausq at debian dot org
- Date: 18 Nov 2004 15:05:33 -0000
- Subject: Re: exp/1811: "set var x = y" doesn't work properly if sizeof(x) < sizeof(register)
- Reply-to: cagney at redhat dot com, gdb-prs at sources dot redhat dot com, nobody at sources dot redhat dot com, tausq at debian dot org, gdb-gnats at sources dot redhat dot com
Synopsis: "set var x = y" doesn't work properly if sizeof(x) < sizeof(register)
State-Changed-From-To: open->feedback
State-Changed-By: cagney
State-Changed-When: Thu Nov 18 15:05:32 2004
State-Changed-Why:
Check:
else if (CONVERT_REGISTER_P (regnum, type))
{
/* The ISA/ABI need to something weird when obtaining the
specified value from this register. It might need to
re-order non-adjacent, starting with REGNUM (see MIPS and
i386). It might need to convert the [float] register into
the corresponding [integer] type (see Alpha). The assumption
is that REGISTER_TO_VALUE populates the entire value
including the location. */
REGISTER_TO_VALUE (frame, regnum, type, VALUE_CONTENTS_RAW (v));
VALUE_LVAL (v) = lval_register;
VALUE_FRAME_ID (v) = get_frame_id (frame);
VALUE_REGNUM (v) = regnum;
you should be able to perform arbitrary conversions.
http://sources.redhat.com/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gdb&pr=1811