Ivan Grokhotkov 04b95f3567 freertos: don't clobber a4 while spilling register windows ... Commit 891eb3b0 was fixing an issue with PS and EPC1 not being preserved after the window spill procedure. It did so by saving PS in a2 and EPC1 in a4. However the a4 register may be a live register of another window in the call stack, and if it is overwritten and then spilled to the stack, then the corresponding register value will end up being corrupted. In practice the problem would show up as an IllegalInstruction exception, when trying to return from a function when a0 value was 0x40020. Fix by using a0 register instead of a4 as scratch. Also fix a comment about xthal_save_extra_nw, as this function in fact doesn't clobber a4 or a5 because XCHAL_NCP_NUM_ATMPS is defined as 1. Closes https://github.com/espressif/esp-idf/issues/5758		2020-09-02 15:40:41 +02:00
..
include/freertos	Revert "Merge branch 'feature/gdb_stub_task_state' into 'master'"	2020-07-09 17:16:47 +02:00
test	freertos: don't clobber a4 while spilling register windows	2020-09-02 15:40:41 +02:00
xtensa	freertos: don't clobber a4 while spilling register windows	2020-09-02 15:40:41 +02:00
CMakeLists.txt	esp_system: introduce intermediary function to call after system init	2020-06-19 18:40:10 +10:00
component.mk	Exception handlers for LoadStoreError and LoadStoreAlignmentError	2020-02-26 20:21:59 +08:00
croutine.c	Add UNTESTED_FUNCTION() call to untested functions, make Kconfig option to enable that to map to assert()	2016-09-27 11:36:30 +08:00
event_groups.c	freertos: removed likely macros from non-port specifics parts of freertos	2020-01-03 14:42:57 -03:00
FreeRTOS-openocd.c	freertos: fix defining uxTopUsedPriority for esp32s2beta	2019-10-29 16:38:48 +01:00
Kconfig	freertos: ensure the interrupt stack is aligned	2020-08-05 12:51:41 +02:00
license.txt	Initial public version	2016-08-17 23:08:22 +08:00
linker.lf	freertos: place xQueueGenericCreateStatic into flash	2020-04-22 16:06:13 +08:00
list.c	freertos: removed likely macros from non-port specifics parts of freertos	2020-01-03 14:42:57 -03:00
queue.c	freertos: removed likely macros from non-port specifics parts of freertos	2020-01-03 14:42:57 -03:00
sdkconfig.rename	Rename Kconfig options (components/freertos)	2019-05-21 09:09:01 +02:00
stdint.readme	Initial public version	2016-08-17 23:08:22 +08:00
tasks.c	freertos: fix compilation warning at -O2 level	2020-07-15 12:50:51 +00:00
timers.c	freertos: removed likely macros from non-port specifics parts of freertos	2020-01-03 14:42:57 -03:00