5 Commits

Author	SHA1	Message	Date
Joakim Gebart	afc1dd3a6d	cortex-m4: Add atomic_cas implementation	2015-05-07 18:52:13 +02:00
Joakim Gebart	215ccc1213	core: Introduce atomic counters ... - Move generic implementation of atomic_set_return to core/atomic.c - Generic implementation of atomic compare and swap in core/atomic.c - atomic_cas is used to implement atomic counters in core/include/atomic.h - atomic_int_t is an atomic integer type - ATOMIC_INIT can be used as an initializer for atomic_int_t - ATOMIC_VALUE gets a reference to the value of an atomic integer	2015-05-07 18:52:13 +02:00
BytesGalore	a4d2ee307c	cpu: added extern "C" to headers	2014-11-24 19:10:15 +01:00
Hauke Petersen	e7fbaf3815	cpu: removed NAKED attribute from ISRs ... - removed the __attribute__((naked)) from ISRs - removed ISR_ENTER() and ISR_EXIT() macros Rationale: Cortex-Mx MCUs save registers R0-R4 automatically on calling ISRs. The naked attribute tells the compiler not to save any other registers. This is fine, as long as the code in the ISR is not nested. If nested, it will use also R4 and R5, which will then lead to currupted registers on exit of the ISR. Removing the naked will fix this.	2014-10-30 19:33:32 +01:00
Hauke Petersen	29e70c14d6	cpu: Initial import of cortex-m4_common	2014-07-16 17:20:50 +02:00