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4cc973986d
Fixes a flaw in implementations of arch_is_in_isr() that could manifest on SMP systems. If the reading of the current CPU's nested interrupt count is not fully atomic on an SMP system, then an ill-timed context switch could occur leaving the caller reading the nested interrupt count of a different CPU. This also applies a little defensive programming to cortex_a_r's arch_is_in_nested_exception(). Although this routine is presently only called with interrupts locked (which will prevent the thread from migrating), switching to use _current_cpu instead of arch_curr_cpu() is safer as should the routine ever be called without meeting the locking criteria, it can be detected and fixed. Signed-off-by: Peter Mitsis <peter.mitsis@intel.com> |
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| .. | ||
| arc | ||
| arm | ||
| arm64 | ||
| common | ||
| mips | ||
| posix | ||
| riscv | ||
| rx | ||
| sparc | ||
| x86 | ||
| xtensa | ||
| archs.yml | ||
| CMakeLists.txt | ||
| Kconfig | ||