Commit Graph

27 Commits

Author SHA1 Message Date
Patrik Flykt 7c0a245d32 arch: Rename reserved function names
Rename reserved function names in arch/ subdirectory. The Python
script gen_priv_stacks.py was updated to follow the 'z_' prefix
naming.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-04-03 17:31:00 -04:00
Patrik Flykt 24d71431e9 all: Add 'U' suffix when using unsigned variables
Add a 'U' suffix to values when computing and comparing against
unsigned variables.

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-28 17:15:58 -05:00
Patrik Flykt 4344e27c26 all: Update reserved function names
Update reserved function names starting with one underscore, replacing
them as follows:
   '_k_' with 'z_'
   '_K_' with 'Z_'
   '_handler_' with 'z_handl_'
   '_Cstart' with 'z_cstart'
   '_Swap' with 'z_swap'

This renaming is done on both global and those static function names
in kernel/include and include/. Other static function names in kernel/
are renamed by removing the leading underscore. Other function names
not starting with any prefix listed above are renamed starting with
a 'z_' or 'Z_' prefix.

Function names starting with two or three leading underscores are not
automatcally renamed since these names will collide with the variants
with two or three leading underscores.

Various generator scripts have also been updated as well as perf,
linker and usb files. These are
   drivers/serial/uart_handlers.c
   include/linker/kobject-text.ld
   kernel/include/syscall_handler.h
   scripts/gen_kobject_list.py
   scripts/gen_syscall_header.py

Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-11 13:48:42 -04:00
Krzysztof Chruscinski 27459a13e4 arch: Add LOG_PANIC to fault handlers
Added LOG_PANIC to fault handlers to ensure that log is flush and
logger processes messages in a blocking way in fault handler.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2018-09-27 13:11:26 +05:30
Andrew Boie 8eaff5d6d2 k_thread_abort(): assert if abort essential thread
Previously, this was only done if an essential thread self-exited,
and was a runtime check that generated a kernel panic.

Now if any thread has k_thread_abort() called on it, and that thread
is essential to the system operation, this check is made. It is now
an assertion.

_NANO_ERR_INVALID_TASK_EXIT checks and printouts removed since this
is now an assertion.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-09-07 16:35:16 -07:00
Andrew Boie e3550a29ff stack_sentinel: hang system on failure
Stack sentinel doesn't prevent corruption, it just notices when
it happens. Any memory could be in a bad state and it's more
appropriate to take the entire system down rather than just kill
the thread.

Fatal testcase will still work since it installs its own
_SysFatalErrorHandler.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-06-08 13:49:36 -05:00
Andrew Boie 998f905445 arches: declare _SysFatalErrorHandler __weak
This function is intended to be easily overridable by applications.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-06-08 13:49:36 -05:00
Andrew Boie 5dcb279df8 debug: add stack sentinel feature
This places a sentinel value at the lowest 4 bytes of a stack
memory region and checks it at various intervals, including when
servicing interrupts or context switching.

This is implemented on all arches except ARC, which supports stack
bounds checking directly in hardware.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-05-13 15:14:41 -04:00
Andrew Boie cdb94d6425 kernel: add k_panic() and k_oops() APIs
Unlike assertions, these APIs are active at all times. The kernel will
treat these errors in the same way as fatal CPU exceptions. Ultimately,
the policy of what to do with these errors is implemented in
_SysFatalErrorHandler.

If the archtecture supports it, a real CPU exception can be triggered
which will provide a complete register dump and PC value when the
problem occurs. This will provide more helpful information than a fake
exception stack frame (_default_esf) passed to the arch-specific exception
handling code.

Issue: ZEP-843
Change-Id: I8f136905c05bb84772e1c5ed53b8e920d24eb6fd
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-04-22 10:31:49 -04:00
Kumar Gala cc334c7273 Convert remaining code to using newly introduced integer sized types
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.  This handles the remaining includes and kernel, plus
touching up various points that we skipped because of include
dependancies.  We also convert the PRI printf formatters in the arch
code over to normal formatters.

Jira: ZEP-2051

Change-Id: Iecbb12601a3ee4ea936fd7ddea37788a645b08b0
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-21 11:38:23 -05:00
Kumar Gala bf53ebf2c8 arch: convert to using newly introduced integer sized types
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.  There are few places we dont convert over to the new
types because of compatiability with ext/HALs or for ease of transition
at this point.  Fixup a few of the PRI formatters so we build with newlib.

Jira: ZEP-2051

Change-Id: I7d2d3697cad04f20aaa8f6e77228f502cd9c8286
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-21 12:08:12 +00:00
David B. Kinder ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
Anas Nashif c1347b4730 kernel: replace all remaining nanokernel occurances
replace include <nanokernel.h> with <kernel.h> everywhere and also fix
any remaining mentions of nanokernel.

Keep the legacy samples/tests as is.

Change-Id: Iac48447bd191e83f21a719c69dc26233216d08dc
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-25 14:34:43 -05:00
Anas Nashif cb888e6805 kernel: remove nano/micro wording and usage
Also remove some old cflags referencing directories that do not exist
anymore.
Also replace references to legacy APIs in doxygen documentation of
various functions.

Change-Id: I8fce3d1fe0f4defc44e6eb0ae09a4863e33a39db
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:03 +00:00
Benjamin Walsh 48db0b3443 arch/all: simpler _SysFatalErrorHandler()
- does not pull in printk(), for potential footprint gain
- does not pull in k_thread_abort(), for single-threaded systems

Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Change-Id: Ibc6a198b81a6cd73117d1e85aa05b92a4501a34d
2016-12-15 16:17:39 -05:00
Inaky Perez-Gonzalez 11bd718733 fatal error handlers: report which thread croaked
When a thread dies, at least print the pointer to it, so we can debug
better.

Change-Id: Ief6bbc0c221e2d5271c240a4b73df16413aa5e22
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
2016-11-17 14:36:50 +00:00
Benjamin Walsh f6ca7de09c kernel/arch: consolidate tTCS and TNANO definitions
There was a lot of duplication between architectures for the definition
of threads and the "nanokernel" guts. These have been consolidated.

Now, a common file kernel/unified/include/kernel_structs.h holds the
common definitions. Architectures provide two files to complement it:
kernel_arch_data.h and kernel_arch_func.h. The first one contains at
least the struct _thread_arch and struct _kernel_arch data structures,
as well as the struct _callee_saved and struct _caller_saved register
layouts. The second file contains anything that needs what is provided
by the common stuff in kernel_structs.h. Those two files are only meant
to be included in kernel_structs.h in very specific locations.

The thread data structure has been separated into three major parts:
common struct _thread_base and struct k_thread, and arch-specific struct
_thread_arch. The first and third ones are included in the second.

The struct s_NANO data structure has been split into two: common struct
_kernel and arch-specific struct _kernel_arch. The latter is included in
the former.

Offsets files have also changed: nano_offsets.h has been renamed
kernel_offsets.h and is still included by the arch-specific offsets.c.
Also, since the thread and kernel data structures are now made of
sub-structures, offsets have to be added to make up the full offset.
Some of these additions have been consolidated in shorter symbols,
available from kernel/unified/include/offsets_short.h, which includes an
arch-specific offsets_arch_short.h. Most of the code include
offsets_short.h now instead of offsets.h.

Change-Id: I084645cb7e6db8db69aeaaf162963fe157045d5a
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-11-12 07:04:52 -05:00
Andrew Boie 56f561e15e arches: use new kernel APIs
Change-Id: I4b6f5264d5295ebf4278991a1f4e2141bef6602f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-11-09 20:49:40 +00:00
Andrew Boie a62d4be68b nios2: remove support for legacy kernels
Change-Id: If16533a478e5cd10f924eb6abe4b25c9902733c5
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-11-04 11:45:14 -07:00
Andrew Boie 431607c20a nios2: port to unified kernel
With this patch we introduce unified kernel support for NIOS II.
Not all test cases have been ported, but the following command
currently succeeds with 43/43 passing test cases:

 $ sanitycheck --arch=nios2 -xKERNEL_TYPE=unified \
         --tag=unified_capable

Issue: ZEP-934
Change-Id: Id8effa0369a6a22c4d0a789fa2a8e108af0e0786
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-10-26 17:10:13 +00:00
Andrew Boie 1925d853cf nios2: fix incorrect printk() usage
Change-Id: Ib5102a8f0bc9dd8c6a43f94b3dfb3bc7cd16879b
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-08-28 07:47:28 -04:00
Andrew Boie 2eb86db529 nios2: optionally print cause code reason
This is at the expense of code size. The QEMU and MAX10
targets have plenty of space so enable it for these boards,
but leave off by default for others.

Change-Id: I93fdb7db14232727e9953b22490d8869ff3b60e7
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-18 19:26:37 +00:00
Andrew Boie 0b6c4febf1 nios2: get CPU features from ALT_CPU_* namespace
NIOS2_* namespace is deprecated.

Change-Id: I5a9b07ee33b20aa18509e9d789837f48199ab25d
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-12 18:09:53 +00:00
Andrew Boie c2ca9e609c nios2: fix debugging output
The faulting instruction was off by 4 bytes and we weren't printing
the exception cause code properly.

Change-Id: I86f4320c7be43dca96940186def56aa5e47bc49f
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 05:23:55 +00:00
Andrew Boie e2ff2fdd91 nios2: add base exception handling code
Change-Id: I56b0ec1a3576a77ca7bd6f2c0217de8053406927
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-22 16:42:20 +00:00
Andrew Boie 7f7337a0fe nios2: fatal: add _SysFatalErrorHandler and _Fault stub
ZEP-252 will handle implementation of the code here.

Change-Id: I3e9a6c7cdf2d5a3b0240317b772628fead528095
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-09 18:09:27 +00:00
Andrew Boie 9433895954 nios2: basic build, non-functional
Basic build framework for Nios2. Everything is stubbed out,
we just want to have a build going so that we can start to
parallelize implementation tasks.

This patch is not intended to be functional, but should be
able to produce a binary for all the nanokernel-based
sanity checks.

Change-Id: I12dd8ca4a2273f7662bee46175822c9bbd99202a
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-03 23:18:45 +00:00