Frederic Weisbecker
feef47d0cb
hw-breakpoints: Get the number of available registers on boot dynamically ...
The breakpoint generic layer assumes that archs always know in advance
the static number of address registers available to host breakpoints
through the HBP_NUM macro.
However this is not true for every archs. For example Arm needs to get
this information dynamically to handle the compatiblity between
different versions.
To solve this, this patch proposes to drop the static HBP_NUM macro
and let the arch provide the number of available slots through a
new hw_breakpoint_slots() function. For archs that have
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS selected, it will be called once
as the number of registers fits for instruction and data breakpoints
together.
For the others it will be called first to get the number of
instruction breakpoint registers and another time to get the
data breakpoint registers, the targeted type is given as a
parameter of hw_breakpoint_slots().
Reported-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: K. Prasad <prasad@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
2010-05-01 04:32:14 +02:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
kmemtrace: Fix up tracer registration
2009-10-01 11:53:44 +02:00
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
Merge branch 'master' into export-slabh
2010-04-05 11:37:28 +09:00
local_t: Move local.h include to ringbuffer.c and ring_buffer_benchmark.c
2010-01-05 15:34:50 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tracing/kprobes: Support basic types on dynamic events
2010-04-14 17:26:28 -03:00
tracing: add filter event logic to special, mmiotrace and boot tracers
2009-09-12 23:34:04 -04:00
tracing: Add correct/incorrect to sort keys for branch annotation output
2010-02-09 21:35:05 -05:00
tracing: Fix lockdep warning in global_clock()
2010-03-29 15:16:44 -04:00
x86, perf, bts, mm: Delete the never used BTS-ptrace code
2010-03-26 11:33:55 +01:00
perf: Correctly align perf event tracing buffer
2010-04-01 08:26:30 +02:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tracing: Remove show_format and related macros from TRACE_EVENT
2010-01-06 12:08:46 -05:00
tracing: switch function prints from %pf to %ps
2009-09-17 15:53:40 -04:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tracing: Add stack trace to irqsoff tracer
2009-12-11 13:19:51 -05:00
tracing/kprobes: Support basic types on dynamic events
2010-04-14 17:26:28 -03:00
hw-breakpoints: Get the number of available registers on boot dynamically
2010-05-01 04:32:14 +02:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
tracing: Add full state to trace_seq
2009-12-09 14:05:49 -05:00
tracing: consolidate code between trace_output.c and trace_function_graph.c
2009-09-11 14:24:13 -04:00
tracing: Remove markers
2009-09-18 21:22:08 +02:00
tracing: pass around ring buffer instead of tracer
2009-09-04 18:59:39 -04:00
locking: Convert __raw_spin* functions to arch_spin*
2009-12-14 23:55:32 +01:00
Merge branch 'linus' into perf/core
2010-04-08 13:37:18 +02:00
tracing: Fix circular dead lock in stack trace
2010-02-02 10:20:18 -05:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
perf events, x86/stacktrace: Make stack walking optional
2009-12-17 09:56:19 +01:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
feef47d0cb