Commit Graph

17 Commits

Author SHA1 Message Date
Leandro Pereira 2f5659d4d2 arch: x86: Unwind the stack on fatal errors
Prints up to 8 stack frames, with the following format:
  RETURN_ADDR(ARGUMENTS)

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2018-03-16 14:12:15 -07:00
Andy Ross 6eef2f1485 misc: Add a FORCE_NO_ASSERT kconfig directive
The mbedtls test is hitting a compiler bug where two subtests will
soft fail on qemu_xtensa when assertions are enabled.  This is despite
the fact that:

+ The failure is entirely internal to the mbedtls suite.
+ The mbedtls code does not use zephyr asserts
+ The mbedtls code does not call into zephyr code that might assert.
+ The behavior persists even when an irq_lock() is held across the
  entire test, ruling out any asserts in interrupt/exception context.
+ And EVEN WHEN the mbedtls library blobs are bytewise identical
  between assert and non-assert cases.

The bug seems to be a layout thing where the mbedtls code behavior
differently based on code address and/or link-time optimizations
(xtensa has a few).

Unfortunately sanitycheck enables assertions by setting CFLAGS
directly and not via kconfig, so we can't fix this by turning the
feature off in an app right now.  This patch adds a simple "override"
flag that can be set by apps like this that hit bugs.

Again, note that zephyr assertions are not used nor needed by this one
test.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-02-16 10:44:29 -05:00
Anas Nashif ff42bdd0a0 debug: remove option GDB_INFO
This feature is X86 only and is not used or being tested. It is legacy
feature and no one can prove it actually works. Remove it until we have
proper documentation and samples and multi architecture support.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-02-12 13:58:28 -08:00
Paul Sokolovsky 84e3d3e7e8 libc: Kconfig: Move STDOUT_CONSOLE from subsys/debug
This option is clearly not related to debugging, but affects libc
features.

Fixes: #5566

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2018-01-11 12:47:10 -05:00
Anas Nashif 429c2a4d9d kconfig: fix help syntax and add spaces
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-13 17:43:28 -06:00
Anas Nashif f46c0c2472 kconfig: remove deprecated DEBUG_TRACING_KERNEL_OBJECTS
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-09 08:48:51 -06:00
Anas Nashif a254359c1a kconfig: stack_usage: remove extra space
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-12-09 08:48:51 -06:00
Anas Nashif 1092a25978 kconfig: move GDB_INFO kconfig to subsys/debug
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-11-27 22:15:30 -05:00
Andrew Boie 756f907274 misc: userspace support for printk()
To avoid making a system call for every character emitted, there is now
a small line buffer if userspace is enabled. The interface to the kernel
is a new system call which takes a sized buffer of console data.

If userspace is not enabled this works like before.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-10-11 09:23:57 -07:00
Andrew Boie 0f669132a0 kernel: remove gdb_server
This is unmaintained and currently has no known users. It was
added to support a Wind River project. If in the future we need it
again, we should re-introduce it with an exception-based mechanism
for catching out-of-bounds memory queries from the debugger.

The mem_safe subsystem is also removed, it is only used by the
GDB server. If its functionality is needed in the future, it
shoudl be replaced with an exception-based mechanism.

The _image_{ram, rom, text}_{start, end} linker variables have
been left in place, they will be re-purposed and expanded to
support memory protection.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2017-06-19 14:29:40 -04:00
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
Leandro Pereira 86b0260e97 kconfig: Move debugging-related options from misc/ to subsys/debug/
This should fix the grouping for debugging options appearing in the
main "menuconfig" menu.

Change-Id: I7ddf3a6f3d025bf82ba63099b30e47a40d7c3187
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-04-28 23:41:16 +00:00
Anas Nashif 919b3f0878 kconfig: fixed Kconfig name in comments
Change-Id: Ia22e9df4b9d836635aef1d4b59efec8ce58815d6
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2017-04-10 16:07:09 +00:00
Youvedeep Singh 724fcffbef debug: Remove dependency of unsetting X86_IAMCU for CONFIG_DEBUG_INFO.
CONFIG_DEBUG_INFO was disabled for IAMCU targets. As per Jira update forked
arch/code is gone. So it should not block enabling DEBUG_INFO for IAMCU.

Currently CONFIG_DEBUG_INFO depends on (x86 = y && !X86_IAMCU)
CONFIG_DEBUG_INFO can not be set for IAMCU. this patch removes dependency.

Jira: ZEP-601

Change-Id: Ib5635096f83f7b931c277b667a55c6d54f8e946a
Signed-off-by: Youvedeep Singh <youvedeep.singh@intel.com>
2017-04-09 14:52:28 +00:00
Leandro Pereira 570634a259 kernel: Add OpenOCD support
In order for OpenOCD to have a high-level view of an RTOS, it uses the
GDB protocol to obtain symbols from the system.

The GDB protocol, however, does not allow obtaining fields from
structures directly, and hardcoding offsets is not only brittle (due to
possibly different architectures or changes in the code), it's also
infeasible considering Zephyr is highly-configurable and parts of key
structs can be compiled in or out.

Export an array with offsets for these key structs. Also add a version
element in that array to allow changes in those structs.

Change-Id: I83bcfa0a7bd57d85582e5ec6efe70e1cceb1fc51
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
2017-02-11 03:57:19 +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 569f0b4105 debug: move debug features from misc to subsys/debug
Change-Id: I446be0202325cf3cead7ce3024ca2047e3f7660d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 19:58:40 +00:00