On Xtensa, backtrace can not recover the two most significant bits of
the address, as the window call size is encoded in these bits.
Because of this, __builtin_return_address modifies these MSBs to
match those of the callee, "fixing" the address. An unfortunate side
effect is that the zero return address, which usually terminates the
backtrace, gets converted to 0x40000000. While there is a valid
instruction at this address, its occurrence in the backtrace is
highly unlikely: this is the first instruction of WindowOverflow4
vector, and IDF apps switch VECBASE to an IRAM location very early at
startup.
Even if frame->exccause != PANIC_RSN_CACHEERR, it is possible that
the cache error interrupt status is set. For example, this may happen
due to an invalid cache access in the panic handler itself.
Check cache error interrupt status instead of frame->exccause to
decide whether to do CPU reset or digital reset.
Also remove unnecessary esp_dport_access_int_pause from
esp_cache_err_get_cpuid, since the panic handler already calls
esp_dport_access_int_abort on entry.
* Don't bother checking the chip revision if it looks like the partition
doesn't really contain an app
* Don't print the "info" level about the revision & min revision unless
we're in the bootloader (otherwise it gets printed at random times
during the OTA process)
Since in b0491307, which has introduced the optimized window spill
procedure, _xt_context_save did not work correctly when called from
_xt_syscall_exc. This was because unlike _xt_lowint1, _xt_syscall_exc
does not save PS and EPC1. The new version of _xt_context_save
modified PS (on purpose) and EPC1 (accidentally, due to window
overflow exceptions), which resulted in a crash upon 'rfi' from the
syscall.
This commit adds restoring of PS and EPC1 in _xt_context_save. It also
slightly reduces the number of instructions used to prepare PS for
window spill.
Unit test for setjmp/longjmp (which were broken by this regression)
is added.
Closes https://github.com/espressif/esp-idf/issues/4541
1. fix the bug when modifying the channel info of peer node
2. fix the crash when modifying peer node between unencrypted and encrypted
3. fix the bug for fetch peer
4. modify the esp_wifi_set_channel() function
5. fix the bug that the channel parameter doesn't work when adding peer node
Closes https://github.com/espressif/esp-idf/issues/2833
Closes https://github.com/espressif/esp-idf/issues/4311
* If esp_vfs_spiffs_register is called with an explicit partition
label, other SPIFFS functions (info, format, unregister) must be
called with the same label.
* On the other hand, if label was NULL in the call to
esp_vfs_spiffs_register and the first matching partition was used,
calls to the rest of the SPIFFS functions should be done with NULL
partition_label argument.
Fix the Doxygen documentation. Update the example accordingly, in case
a user modifies "partition_label" value in esp_vfs_spiffs_conf_t conf
initializer.
Closes https://github.com/espressif/esp-idf/issues/4450
