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* exceptions: Catch exceptions at boot timeBenjamin Herrenschmidt2015-03-311-0/+2
| | | | | | | And print some informations about GPR state, backtrace, etc... Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
* Capture backtraces when measuring stack depthBenjamin Herrenschmidt2014-11-181-1/+2
| | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Stack checking extensionsBenjamin Herrenschmidt2014-11-171-0/+4
| | | | | | | | | | | | This patch adds: - Normal builds are done with -fstack-protector (we want to investigate using -fstack-protector-strong on gcc4.9 but for now we just use that - Build with STACK_CHECK=1 will use -fstack-protector-all and -pg and will check the stack in mcount Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* irq/occ/opal: Add self-sent dummy interruptBenjamin Herrenschmidt2014-10-241-0/+1
| | | | | | | | | | | | | This makes OPAL use the OCC interrupt facility to send itself an interrupt whenever the OPAL event bit is set as a result of an OPAL call that wasn't itself opal_handle_interrupt() or opal_handle_hmi() (both of which we know the OS will already deal with appropriately). This ensures that OPAL event changes are notified to Linux via its interrupt path which is necessary for it to properly broadcast the state change to its various clients. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Initial commit of Open Source releaseBenjamin Herrenschmidt2014-07-021-0/+85
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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