| NuttX-5.12 |
| ---------- |
| |
| This is the 59th release of NuttX. This is a critical bugfix release. |
| |
| * Fixed an important error in the signal trampoline logic. |
| Essentially, interrupts are re-enabled while the signal handler |
| executes, but the logic to re-disable the interrupts before |
| returning from the signal handler trampoline was missing. Under |
| certain circumstances, this can cause stack corruption. This |
| was discovered by David Hewson on an ARM9 platform, but since |
| the code has been leveraged, the bug has been propagated from |
| ARM to Cortex-M3, AVR32, M16C, SH1, ZNEO, eZ80, Z8, and Z80 -- |
| almost every architecture. The correction has been incorporated |
| for all architectures but only verified on a few. |
| |
| Other notable changes in NuttX-5.12: |
| |
| * A complete port for the AVR32 (AT32UC3B0256) is incorporated |
| in the source tree. Testing of this port is underway now. This |
| release was made before verifying this port in order to get the |
| important bugfix in place. |
| |
| * Other miscellaneous bugfix and enhancements as noted in the |
| ChangeLog. |
