From: cyril@ti.com (Cyril Chemparathy)
To: linux-arm-kernel@lists.infradead.org
Subject: Forced HW_BREAKPOINT
Date: Tue, 30 Nov 2010 18:56:18 -0500 [thread overview]
Message-ID: <4CF58F22.6070803@ti.com> (raw)
Hi,
I am running an ARM1176JZ-S based SoC, on which HW breakpoints do not
seem to function for some reason.
Unfortunately the current Kconfig forces HW_BREAKPOINT if PERF_EVENTS is
enabled on ARMV6 (commit 19852e59002fbba1c2c6ba0f154095a37ad2ac03):
> + select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
As a result, I am unable to use the PMU for OProfile, without having hw
breakpoints barf at boot. Is there any dependency between h/w
breakpoints and PMU that I am missing? If not, does H/W breakpoints
have be forced here?
Regards
Cyril.
next reply other threads:[~2010-11-30 23:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-30 23:56 Cyril Chemparathy [this message]
2010-12-01 9:54 ` Forced HW_BREAKPOINT Will Deacon
2010-12-01 16:17 ` Cyril Chemparathy
2010-12-01 16:28 ` Will Deacon
2010-12-01 16:48 ` Cyril Chemparathy
2010-12-01 17:32 ` Will Deacon
2010-12-01 20:14 ` Cyril Chemparathy
2010-12-02 9:37 ` Will Deacon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4CF58F22.6070803@ti.com \
--to=cyril@ti.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.