From: Jim Blandy <jimb@redhat.com>
To: "Martin M. Hunt" <hunt@redhat.com>
Cc: Andrew Cagney <cagney@gnu.org>, Mark Kettenis <kettenis@gnu.org>,
gdb@sources.redhat.com
Subject: Re: dwarf2-frame.c question for maintainers
Date: Fri, 16 Jul 2004 21:16:00 -0000 [thread overview]
Message-ID: <vt2zn5zzpn1.fsf@zenia.home> (raw)
In-Reply-To: <1089917359.3028.26.camel@dragon>
Here is a terse way to extract the least-significant end of the
register's value, regardless of endianness.
*** dwarf2-frame.c.~1.36.~ 2004-06-17 16:42:41.000000000 -0500
--- dwarf2-frame.c 2004-07-16 14:57:09.000000000 -0500
*************** read_reg (void *baton, int reg)
*** 214,219 ****
--- 214,222 ----
buf = (char *) alloca (register_size (gdbarch, regnum));
frame_unwind_register (next_frame, regnum, buf);
+ store_unsigned_integer
+ (buf, TYPE_LENGTH (builtin_type_void_data_ptr),
+ extract_unsigned_integer (buf, register_size (gdbarch, regnum)));
return extract_typed_address (buf, builtin_type_void_data_ptr);
}
Shouldn't that work? (Setting aside questions of whether it's
pleasing to extract, store, and then re-extract the value.)
prev parent reply other threads:[~2004-07-16 20:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-13 22:01 Martin M. Hunt
2004-07-14 17:29 ` Andrew Cagney
2004-07-14 17:56 ` Martin M. Hunt
2004-07-14 19:38 ` Andrew Cagney
2004-07-15 17:32 ` Mark Kettenis
2004-07-15 17:40 ` Martin M. Hunt
2004-07-15 18:15 ` Andrew Cagney
2004-07-15 18:35 ` Martin M. Hunt
2004-07-15 18:45 ` Andrew Cagney
2004-07-15 18:54 ` Martin M. Hunt
2004-07-16 21:16 ` Jim Blandy [this message]
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