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commit 53a52f17d96c8d47c79a7dafa81426317e89c7c1 upstream.
arch/sh/kernel/kgdb.c: In function 'sleeping_thread_to_gdb_regs':
arch/sh/kernel/kgdb.c:225:32: error: implicit declaration of function 'task_stack_page' [-Werror=implicit-function-declaration]
arch/sh/kernel/kgdb.c:242:23: error: dereferencing pointer to incomplete type
arch/sh/kernel/kgdb.c:243:22: error: dereferencing pointer to incomplete type
arch/sh/kernel/kgdb.c: In function 'singlestep_trap_handler':
arch/sh/kernel/kgdb.c:310:27: error: 'SIGTRAP' undeclared (first use in this function)
arch/sh/kernel/kgdb.c:310:27: note: each undeclared identifier is reported only once for each function it appears in
This was introduced by commit 16559ae48c76 ("kgdb: remove #include
<linux/serial_8250.h> from kgdb.h").
[geert@linux-m68k.org: reworded and reformatted]
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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kgdb_nmicallback expects valid register state, so just fetch the register
state with get_irq_regs() as on other platforms.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Presently we're using a pretty dumbed-down implementation that copies
over register state visible from the thread info, leaving the bulk of the
switch_to state uncopied.
Given that we're also depending on register bank toggling for switch_to
optimization we ought to also explicitly zero out the GP regs that reside
in an alternate bank in order to prevent handing back garbage.
There are a few extra registers that we have state for in switch_to, so
copy those over while we're at it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This updates sh following the generic kgdb changes adding support
for individual register get/set for kgdb/kdb use.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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kgdb needs a kgdb_roundup_cpus() definition in the architecture backend,
so just copy over the MIPS version, which already does what we want.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Quite a bit of fallout all over the place, nothing terribly exciting.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Implement kgdb_arch_pc() which adjusts the pc if it needs to be
adjusted after a software breakpoint trap.
Implement kgdb_arch_set_pc() which is a new required function in the
kgdb debug core.
When processing a single step return zero in the error exception field
so that the debug core can distinguish between a single step trap and
a breakpoint trap generically.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
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This kills off kgdb's breakpoint handler and ties in to the notifier
chain instead.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The kgdb stub has traditionally tied in to the NMI slot, and manually
handled debounce. Now that we have a generic way to do this instead, all
of the stub-specific debounce silliness can be killed off.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Save the VBR allowing GDB to dump full registers set but do not reload it
as soon as the kgdb_handle_exception is invoked.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This is now clashing with a driver, so just rename it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This migrates from the old bitrotted kgdb stub implementation and moves
to the generic stub. In the process support for SH-2/SH-2A is also added,
which the old stub never provided.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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