Commit Graph

20 Commits

Author SHA1 Message Date
9ec0aeeab5 debug.h: merge both instances into ihk/debug.h
We do not need two debug.h files.

Take Fujitsu's STATIC_ASSERT over BUILD_BUG_ON because it is more used

Change-Id: If04c17fbb7406ab15fe86267fed8d6da460cec62
Fujitsu: POSTK_DEBUG_ARCH_DEP_9
2019-03-01 05:10:35 +00:00
07aa96ef95 arm64: Scalable Vector Extension (SVE) support.
Change-Id: I3568687913f583edfaa297d5cf5ac91d319d97e9
2019-02-22 04:07:29 +00:00
fb24dcea2e unhandled_page_fault: Refactor architecture dependent parts
Fujitsu: REQ-12
Refs: #1012
Change-Id: I3c61f9cd3f514bdcd4a7f26e7c15043529269cf5
2019-02-14 16:25:57 +09:00
f5023c9730 page fault handler: protect thread accesses
current cpu's thread can be NULL during init, we don't want null derefs
in the page fault handler

Change-Id: I0a2c22b39cae2c258d211317cffc2408e19f3bbf
2019-02-07 02:41:50 +00:00
fe08ac4a67 arm: turn off cpu on panic
Since interrupts are disabled on panic, linux cannot reset a
panic'd core when NMI are disabled (for e.g. mcreboot/mcstop)

Just always offline it, so linux can get it back

Change-Id: If8107172375f2924e02bd4c36e24645ec38a8999
2019-02-07 02:37:31 +00:00
d4d78e9c61 Following arm64-support to development branch
This includes the following fixes:
* fix build of arch/arm64/kernel/vdso

Change-Id: I73b05034d29f7f8731ac17f9736edbba4fb2c639
2019-02-01 15:14:45 +09:00
f299fff266 stack: add hwcap auxval
Fix the AUXV_LEN to account for hwcap and remove the ifdefs

Change-Id: I303fc2c5fa4c8cea7ec9823f8580b8a66de2f58f
Fujitsu: POSTK_DEBUG_ARCH_DEP_65
2019-02-01 13:17:58 +09:00
fb98664f49 clone_thread: Add arch_clone_thread()
Fujitsu: POSTK_DEBUG_ARCH_DEP_23
Refs: #969
Change-Id: Ic15765b8c9e956c95fc50b333b01464d87450d3c
2018-11-21 07:10:01 +00:00
c3bfa3f6a9 move BUG_ON, panic and kprintf define to debug.h; add BUILD_BUG_ON
these functions are more logical to keep together there as they depend
on each other.

Also add a comment about the __printf attribute, if we have a quiet
period it would be useful to enable and clear the thousands of
warnings...

Change-Id: I47d3891c9cd87da28b2883c29384959f5abd1459
2018-10-11 09:03:53 +00:00
f57b0c5d4f wait: Delay wake-up parent within switch context
Fujitsu: POSTK_DEBUG_TEMP_FIX_41
Refs: #1006
Change-Id: Ia98e896505ad0f6549766604ade84550eee8bd2d
2018-08-30 02:13:51 +00:00
0fdeb254b3 switch context: Move to arch-dependent (arch_switch_context())
Fujitsu: POSTK_DEBUG_ARCH_DEP_22
Change-Id: I6faf8d9daa1e639350c2cd83db9bb27b9d37ba01
2018-08-30 02:13:34 +00:00
a6a9bac5b7 Protect more code by #ifdef PERF_ENABLE
Change-Id: I20a67c56c4d7817fdb87cc6a2aa47d68fe3eae8d
2018-08-22 06:03:12 +00:00
c716e87c53 execve: Clear sigaltstack and fp_regs
Fujitsu: POSTK_DEBUG_TEMP_FIX_19
Refs: #976
Change-Id: I16895eab13eecbb47b7e6da961fae82ee5e570ee
2018-08-01 15:11:05 +09:00
3185334c1c debug messages: implement dynamic debug
Heavily inspired off linux kernel's dynamic debug:
 * add a /sys/kernel/debug/dynamic_debug/control file
 (accessible from linux side in /sys/class/mcos/mcos0/sys/kernel/debug/dynamic_debug/control)
 * read from file to list debug statements (currently limited to 4k in size)
 * write to file with '[file foo ][func bar ][line [x][-[y]]] [+-]p' to change values

Side effects:
 * reindented all linker scripts, there is a new __verbose section
 * added string function strpbrk

Change-Id: I36d7707274dcc3ecaf200075a31a2f0f76021059
2018-07-26 14:16:31 +09:00
722ae0e7d5 ARM64 arch_clone_thread(): eliminate extra save_fp_regs() 2018-01-26 13:51:38 +09:00
2d7cb0af89 Add copy_fp_regs to ARM (same as for x86_64) 2017-10-18 09:20:52 +09:00
e664ffba18 Show context registers at the interrupt by SGI 6 2017-10-18 09:20:51 +09:00
d4cd756a91 x86/cpu.c: unhandled page fault: print pre-fault stack
Do basic manual unwinding and print raw stack addresses, with a
suggested invocation of addr2line to pretty-print the result.
2017-10-13 10:02:11 +09:00
4d4279121b process/vm; replace vm_range list by a rbtree
This replaces the chained list used to keep track of all memory ranges
of a process by a standard rbtree (no need of interval tree here
because there is no overlap)

Accesses that were done directly through vm_range_list before were
replaced by lookup_process_memory_range, even full list scan (e.g.
coredump).
The full scans will thus be less efficient because calls to rb_next()
will not be inlined, but these are rarer calls that can probably afford
this compared to code simplicity.

The only reference to the actual backing structure left outside of
process.c is a call to rb_erase in xpmem_free_process_memory_range.

v2: fix lookup_process_memory_range with small start address

v3: make vm_range_insert error out properly

Panic does not lead to easy debug, all error paths
are handled to just return someting on error

v4: fix lookup_process_memory_range (again)

That optimistically going left was a more serious bug than just
last iteration, we could just pass by a match and continue down
the tree if the match was not a leaf.

v5: some users actually needed leftmost match, so restore behavior
without the breakage (hopefully)
2017-10-13 10:00:27 +09:00
9989f41fd3 add arm64 support
- add arm64 dependent codes with GICv3 and SVE support
- fix bugs based on architecture separation requests
2017-09-05 15:06:27 +09:00