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2018-12-28sh: kernel: convert to SPDX identifiersKuninori Morimoto1-0/+1
Update license to use SPDX-License-Identifier instead of verbose license text. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Kuninori Morimoto <[email protected]> Reviewed-by: Simon Horman <[email protected]> Cc: Rich Felker <[email protected]> Cc: Yoshinori Sato <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-07-26atomic: use <linux/atomic.h>Arun Sharma1-1/+1
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <[email protected]> Reviewed-by: Eric Dumazet <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: David Miller <[email protected]> Cc: Eric Dumazet <[email protected]> Acked-by: Mike Frysinger <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2009-08-22sh: unwinder: Use a special bug flag for unwinder traps.Paul Mundt1-21/+0
This simplifies the unwinder trap handling, dropping the use of the special trapa vector and simply piggybacking on top of the BUG support. A new BUGFLAG_UNWINDER is added for flagging the unwinder fault, before continuing on with regular BUG dispatch. Signed-off-by: Paul Mundt <[email protected]>
2009-08-22Merge branch 'sh/dwarf-unwinder' of git://github.com/mfleming/linux-2.6 into ↵Paul Mundt1-6/+27
sh/dwarf-unwinder
2009-08-22sh: Export unwind_stack() to satisfy modular oprofile.Paul Mundt1-0/+2
If the oprofile code is built as a module, unwind_stack() as used by the oprofile backtrace code is not available, causing build breakage. Signed-off-by: Paul Mundt <[email protected]>
2009-08-21sh: unwinder: Introduce UNWINDER_BUG() and UNWINDER_BUG_ON()Matt Fleming1-6/+27
We can't assume that if we execute the unwinder code and the unwinder was already running that it has faulted. Clearly two kernel threads can invoke the unwinder at the same time and may be running simultaneously. The previous approach used BUG() and BUG_ON() in the unwinder code to detect whether the unwinder was incapable of unwinding the stack, and that the next available unwinder should be used instead. A better approach is to explicitly invoke a trap handler to switch unwinders when the current unwinder cannot continue. Signed-off-by: Matt Fleming <[email protected]>
2009-08-13sh: Allow multiple stack unwinders to be setupMatt Fleming1-0/+162
Provide an interface for registering stack unwinders, where each unwinder is given a rating that describes its accuracy and complexity. The more accurate an unwinder is, the more complex it is. If a the current stack unwinder faults, then the stack unwinder with the next highest accuracy will be used in its place (provided one is available). For example, this allows unwinders, such as the DWARF unwinder, to liberally sprinkle BUG()s to catch badly formed DWARF debug info. Signed-off-by: Matt Fleming <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
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