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* cortex-m0/panic: Use newly provided functions to access panic dataPatryk Duda2020-10-011-9/+17
| | | | | | | | | | | | | | | This change removes usage of PANIC_DATA_PTR where possible. Now panic data is accessed through functions that performs more checks and in case of writing also moves other data when necessary. BUG=b:165773837, b:162254118 BRANCH=none TEST=make -j buildall Signed-off-by: Patryk Duda <pdk@semihalf.com> Change-Id: I2a5b474b03a65ce4a5c77cf5f5b671d1d72095f2 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2381711 Reviewed-by: Jett Rink <jettrink@chromium.org>
* LICENSE: remove unnecessary (c) after CopyrightTom Hughes2019-06-191-1/+1
| | | | | | | | | | | | | | | | Ran the following command: git grep -l 'Copyright (c)' | \ xargs sed -i 's/Copyright (c)/Copyright/g' BRANCH=none BUG=none TEST=make buildall -j Change-Id: I6cc4a0f7e8b30d5b5f97d53c031c299f3e164ca7 Signed-off-by: Tom Hughes <tomhughes@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1663262 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
* cortex-m0: Generate vector table in CPatrick Georgi2018-10-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Different versions of the linker behave differently when mixing object built with lto enabled (desirable for code size reduction) and disabled (assembler code), especially when they refer to each other symbols: The file evaluation order of the linker becomes important as it eliminates dead code at various points in time, and LTO code referring to non-LTO code or vice versa, is not visible at early runs. Sadly, just changing the order on the command line isn't sufficient: What works for gcc8 breaks gcc6 (and may behave different in even more ways on gcc4 or other versions). Therefore, implement the vector table in C, so it's compiled in LTO mode, just like the code it refers to. This is a port of Change-Id: I9b75f6558f0357e18000ff1161096c8f9c94a8ac BUG=b:65441143 BRANCH=none TEST=with this change the vector table for whiskers looks much more reasonable (ie. not mostly empty) Change-Id: Ifd39289ecb16b81cdf41427ce190984510d3fd3c Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://chromium-review.googlesource.com/1120333 Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Tested-by: Patrick Georgi <pgeorgi@chromium.org> Tested-by: Jonathan Brandmeyer <jbrandmeyer@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/1177382 Reviewed-by: Jonathan Brandmeyer <jbrandmeyer@chromium.org>
* assert/panic: mark noreturn to inform the compilerPatrick Georgi2018-07-121-0/+1
| | | | | | | | | | | | | BUG=b:65441143 BRANCH=none TEST=buildall with gcc8.1 stops failing on this family of functions Change-Id: I44f9d643e46f955ea0cd0b5893c2806a4e3f52b0 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://chromium-review.googlesource.com/1126315 Commit-Ready: Patrick Georgi <pgeorgi@chromium.org> Tested-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
* cleanup: Fix gcc 5.2.1 compile errorsShawn Nematbakhsh2015-11-111-1/+1
| | | | | | | | | | | | | | | BUG=chromium:552006 BRANCH=None TEST=`make buildall -j` and also verify panic reporting works on glados_pd. Change-Id: Ic9f1ec6b5297389df0d46bb38a67c156901ed956 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/311253 Commit-Ready: Shawn N <shawnn@gmail.com> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* UART: Remove unused uart.h header includesAnton Staaf2015-09-081-1/+0
| | | | | | | | | | | | | | Signed-off-by: Anton Staaf <robotboy@chromium.org> BRANCH=None BUG=None TEST=make buildall -j Change-Id: Ife068807f79f6435292643c49afa1a9a30ae7080 Reviewed-on: https://chromium-review.googlesource.com/296733 Commit-Ready: Anton Staaf <robotboy@chromium.org> Tested-by: Anton Staaf <robotboy@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org>
* Add option to enable GCC LTOVincent Palatin2015-05-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | Add CONFIG_LTO to use GCC Link-Time Optimizations to try to reduce the flash footprint of the firmware. Add additional protection to some functions/data to avoid removal by the linker when their usage is not obvious. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=make buildall (with and without LTO enable on all boards) Change-Id: I586b8c1eda4592b416c85383b65153c1d5ab0059 Reviewed-on: https://chromium-review.googlesource.com/271291 Trybot-Ready: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
* lm4: stm32: Store panic data in backup registers on hard resetShawn Nematbakhsh2015-03-141-5/+24
| | | | | | | | | | | | | | | | | | On hard reset / hibernate, RAM will be erased and panic data will normally be lost. When software panic data saving is enabled, try to save this data just before hard reset and restore it when we come back up. BUG=chrome-os-partner:37380 TEST=Manual on Samus with WP + SW sync enabled. Boot AP, then run "crash divzero" on console. After hard reset, verify that "panicinfo" dumps data and shows divzero exception code. BRANCH=Samus Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: I9516dd4b6db12ef35e512cc4710f9b97d7e663cb Reviewed-on: https://chromium-review.googlesource.com/255912 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* cortex-m*: Save panicinfo on non-exception panicsShawn Nematbakhsh2015-02-181-0/+22
| | | | | | | | | | | | | | | | | | Make non-exception "software" panics such as stack overflow and assert failure save a panic log. Log the panic type in r4, and misc. panic data in r5 so that panic reasons can be distinguished. BUG=chrome-os-partner:36744 TEST=Manual on samus_pd. Run 'crash divzero' then 'panicinfo' after reboot. Verify that panic info is printed with "r4 :dead6660". Trigger stack overflow, verify that panic info is printed with "r4 :dead6661". BRANCH=Samus Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: I5f7a8eb0a5c2ac5799d29bb241deb24fabf38f68 Reviewed-on: https://chromium-review.googlesource.com/249912 Tested-by: Alec Berg <alecaberg@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org>
* Add Cortex-M0 core supportVincent Palatin2014-03-111-0/+178
The Cortex-M0 core is based on ARMv6-M instruction set rather than ARMv7-M as Cortex-M3 and M4. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=run console on STM32F072, and pass all available unit-tests on target. Change-Id: I9bdf6637132ba4a3e739d388580a72b4c84e930e Reviewed-on: https://chromium-review.googlesource.com/188982 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org>
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