| To: | vagabon.xyz@gmail.com |
|---|---|
| Subject: | Re: [PATCH 7/7] Allow unwind_stack() to return ra for leaf function |
| From: | Atsushi Nemoto <anemo@mba.ocn.ne.jp> |
| Date: | Wed, 02 Aug 2006 10:51:26 +0900 (JST) |
| Cc: | ralf@linux-mips.org, linux-mips@linux-mips.org |
| In-reply-to: | <cda58cb80608011238q5b0e0eacje28f921d6e1c7700@mail.gmail.com> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <1154424439969-git-send-email-vagabon.xyz@gmail.com> <20060802.004848.97296551.anemo@mba.ocn.ne.jp> <cda58cb80608011238q5b0e0eacje28f921d6e1c7700@mail.gmail.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
On Tue, 1 Aug 2006 21:38:18 +0200, "Franck Bui-Huu" <vagabon.xyz@gmail.com> wrote: > Considering (wrongly) a nested function as a leaf one is not a big > issue. "ra" reg should _always_ store a valid address (nested or not). > The only (small) impact would be to skip an entry when showing the > backtrace. The unwind_stack() uses regs->regs[31] for a leaf, and regs->regs[31] always holds RA value of _top_ of the stack, not at that level. --- Atsushi Nemoto |
| Previous by Date: | Re: [PATCH 7/7] Allow unwind_stack() to return ra for leaf function, Franck Bui-Huu |
|---|---|
| Next by Date: | Re: [PATCH 6/7] Fix dump_stack(), Atsushi Nemoto |
| Previous by Thread: | Re: [PATCH 7/7] Allow unwind_stack() to return ra for leaf function, Franck Bui-Huu |
| Next by Thread: | Re: [PATCH 7/7] Allow unwind_stack() to return ra for leaf function, Franck Bui-Huu |
| Indexes: | [Date] [Thread] [Top] [All Lists] |