| 2563b9d9652b794ffdfea26247ae1c995635bcc9 |
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25-Jun-2014 |
Steven Rostedt (Red Hat) <rostedt@goodmis.org> |
sparc64,ftrace: Remove check of obsolete variable function_trace_stop
Nothing sets function_trace_stop to disable function tracing anymore.
Remove the check for it in the arch code.
Link: http://lkml.kernel.org/r/20140703.211820.1674895115102216877.davem@davemloft.net
Cc: David S. Miller <davem@davemloft.net>
OKed-to-go-through-tracing-tree-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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| 035df35d968323f6f463c8789553e8589efcbcd4 |
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14-Apr-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Allocate sufficient stack space in ftrace stubs.
128 bytes is sufficient for the register window save area, but the
calling conventions allow the callee to save up to 6 incoming argument
registers into the stack frame after the register window save area.
This means a minimal stack frame is 176 bytes (128 + (6 * 8)).
This fixes random crashes when using the function tracer.
Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 9960e9e8944f9b1ca6af5f7d26400ca45b429600 |
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07-Apr-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Add function graph tracer support.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| a71d1d6bb1b26e566e5c06c37857f4cdc1664780 |
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07-Apr-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Give a stack frame to the ftrace call sites.
It's the only way we'll be able to implement the function
graph tracer properly.
A positive is that we no longer have to worry about the
linker over-optimizing the tail call, since we don't
use a tail call any more.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| ddacd0bc70fe724eba2b5967dd5b68e10d41486c |
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13-Apr-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Kill CONFIG_STACK_DEBUG code.
The generic stack tracer does this job just as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 63b754957371c23b7515399a977a2e1d361a036c |
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13-Apr-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Add HAVE_FUNCTION_TRACE_MCOUNT_TEST and tidy up.
Check function_trace_stop at ftrace_caller
Toss mcount_call and dummy call of ftrace_stub, unnecessary.
Document problems we'll have if the final kernel image link
ever turns on relaxation.
Properly size 'ftrace_call' so it looks right when inspecting
instructions under gdb et al.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 166e553a575f09485f6d0df8a1ef3c5991f7d953 |
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09-Dec-2009 |
David S. Miller <davem@davemloft.net> |
sparc64: Fix stack debugging IRQ stack regression.
Commit 4f70f7a91bffdcc39f088748dc678953eb9a3fbd
(sparc64: Implement IRQ stacks.) has two bugs.
First, the softirq range check forgets to subtract STACK_BIAS
before comparing with %sp. Next, on failure the wrong label
is jumped to, resulting in a bogus stack being loaded.
Reported-by: Igor Kovalenko <igor.v.kovalenko@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 478b8fecda511942404ac232897a718cecd13e48 |
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03-Dec-2008 |
Sam Ravnborg <sam@ravnborg.org> |
sparc,sparc64: unify lib/
o Renamed files in sparc64 to <name>_64.S when identical
to sparc32 files.
o iomap.c were equal for sparc32 and sparc64
o adjusted sparc/Makefile now we have only one lib/
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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