This adds support for the retargetable locking implementation in
newlib 3. This feature will be enabled in the future toolchain builds.
With the present version of the toolchain, this code doesn't get used.
When _RETARGETABLE_LOCKING gets enabled, newlib locking implementation
will be modified as follows:
- Legacy ESP-specific _lock_xxx functions are preserved. This is done
because ROM copies of newlib in ESP32 and ESP32-S2 rely on these
functions through the function pointer table. Also there is some
code in IDF which still uses these locking functions.
- New __retarget_lock_xxx functions are introduced. Newlib expects
these functions to be provided by the system. These functions work
pretty much the same way as the ESP-specific _lock_xxx functions,
except one major difference: _lock_acquire receives the lock pointer
by value, and as such doesn't support lazy initialization.
- Static locks used by newlib are now explicitly initialized at
startup. Since it is unlikely that these static locks are used at
the same time, all compatible locks are set to point to the same
mutex. This saves a bit of RAM. Note that there are still many locks
not initialized statically, in particular those inside FILE
structures.
* Target components pull in xtensa component directly
* Use CPU HAL where applicable
* Remove unnecessary xtensa headers
* Compilation changes necessary to support non-xtensa gcc types (ie int32_t/uint32_t is no
longer signed/unsigned int).
Changes come from internal branch commit a6723fc
BSDs and Unices defined some non standardised functions and symbols used
for endianness handling: converting from Little Endian to Big Endian,
converting from Host to a specific representation, converting from a
specific representation to Host.
With this commit, a modified version of those symbols provided by
FreeBSD is imported.
The license of the imported code is still 2-Clause BSD.
Signed-off-by: Francesco Giancane <francesco.giancane@accenture.com>
Closes https://github.com/espressif/esp-idf/pull/4784
Programs and libraries using compiler and system information about
endianness often include the system header `<endian.h>`.
In `xtensa-gcc` compiler with `newlib` distribution, that file is located in
`<machine/endian.h>`; this means that `#include <endian.h>` would fail
at compile time.
This commit fixes the issue by adding a compatibility `<endian.h>`
header which in turn just includes `<machine/endian.h>`.
Signed-off-by: Francesco Giancane <francesco.giancane@accenture.com>
Merges https://github.com/espressif/esp-idf/pull/4784
newlib/assert: replace unlikely with likely to keep original assertion
newlib/assert: fix assert macro that uses likely
freertos/port: add the missing sdkconfig.h back
newlib/assert: assert macro back to a single line
This uses a hack (temporarily defining __rtems__ from a wrapper header
file) to include timeradd, timersub, and similar macros, without
modifying newlib headers.
This introduces the following changes :
* Implmentation added for pthread attribute related functions :
* pthread_attr_init
* pthread_attr_destroy
* pthread_attr_setdetachstate
* pthread_attr_getdetachstate
* pthread_attr_getstacksize
* pthread_attr_setstacksize
* pthread_create now supports passing attributes/configs through pthread_attr_t structure
* pthread_mutex_timedlock added
* pthread_exit added
* memory for joinable thread is freed before returning from pthread_join
Before entering the deep sleep, the RTC and FRC counters are synchronized. Updating the boot_time.
Added a unit test for this case.
Fixed warnings for MULTIPLE_STAGES
Closes https://github.com/espressif/esp-idf/issues/1840
- spaces->tabs in tasks.c
- update vfs_uart.c to use per-UART locks
- add license to vfs_uart.c
- allocate separate streams for stdout, stdin, stderr, so that they can be independently reassigned
- fix build system test failure
