When standard C libraries are added to BASELIBS to group them together with all other modules, there are multiple definitions for the putchar function. The one that is defined writing to the UART as standard output and the one that is provided by the standard C libraries. To solve this symbol conflict, putchar and getchar functions that use the UART as standard output/input are renamed to __wrap_putchar and __wrap_getchar and the linker options are extended by -Wl,-wrap option.
When linking an application, symbol pthread_setcancelstate is not known in standard C libraries, even if the pthread module is linked. This is because the pthread module is grouped with all other modules, but not with the default C libraries when they are added to LINK_FLAGS. Therefore, standard C libraries have to be added also to BASELIBS to group them with all other modules.
Fixes the problem that the compilation of an applications can throw unknown symbol errors for functions that aren't use at all. Thus, it is possible to remove the warning for unknown symbols and the compilation can abort if there are real unknown symbols.
- remove old header files
- fix new DMA header file macro definitions
- remove old cpu type groups (STM32L1XX_MD, STM32L1XX_MDP,
STM32L1XX_HD, STM32L1XX_XL)
- The __NOP() that was added in #8518 is now remooved.
- When DBG_STANDBY, DBG_STOP or DBG_SLEEP are set in DBG_CR a hardfault
occurs on wakeup from sleep. This was first diagnosed in #8518. When
enabled, a hardfault occured when returning from a branch to irq_restore()
we avoid the call by inlining the function call. See #11830 for more
details.
-include will throw no error if sam0_common/Makefile.features does not exist.
This may not have been intentional as none of the other sam0 implementations
do this.
Replace it with a normal include.
The `mips32r2_generic` CPU was only used by the `mips-malta` board which has
been removed. The reasons for this removal are the same as for the board:
- No hardware to test.
- The board that used this CPU is not available off the shelf.
- No UART input.
- No integrated flasher (one needs to use a separate Windows tool)
For more information and discussion around MIPS, see issues:
- #11831 (Removal of mips-malta)
- #11788 (General MIPS removal)
