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
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