This is the mail archive of the
gdb-patches@sourceware.org
mailing list for the GDB project.
Re: [PATCH 5/8] Detect a frameless frame by comparing the FP register to -1.
- From: Yao Qi <qiyaoltc at gmail dot com>
- To: John Baldwin <jhb at freebsd dot org>
- Cc: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>, binutils at sourceware dot org
- Date: Mon, 13 Jun 2016 12:22:41 +0100
- Subject: Re: [PATCH 5/8] Detect a frameless frame by comparing the FP register to -1.
- Authentication-results: sourceware.org; auth=none
- References: <1465678115-58170-1-git-send-email-jhb at FreeBSD dot org> <1465678115-58170-6-git-send-email-jhb at FreeBSD dot org>
On Sat, Jun 11, 2016 at 9:48 PM, John Baldwin <jhb@freebsd.org> wrote:
>
> - if (cache->saved_regs[MEDIA_FP_REGNUM] >= 0)
> + if (cache->saved_regs[MEDIA_FP_REGNUM] == -1)
> cache->uses_fp = 1;
I suspect it should be " != -1". saved_regs[MEDIA_FP_REGNUM] is initialized
to -1, so if it is not the initialized value (-1), FP should be set in
the prologue, and mark the flag uses_fp.
--
Yao (éå)