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5866c4e3af
Add what a kernel build needs on Xtensa: a crt0 for a user process, the kernel stack allocation that a system call switches to, the syscall entry and return path for an unprivileged caller, and the initial register state that starts a user task at EL0 with its save area on the kernel stack. On the ESP32-S3 the arch code that runs while the flash mapping is in flux moves to IRAM, and the kernel heap is placed above the user .bss so that up_allocate_kheap() and the user address environment do not overlap. Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com> |
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| include | ||
| src | ||
| CMakeLists.txt | ||
| Kconfig | ||