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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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| .. | ||
| esp32 | ||
| esp32s2 | ||
| esp32s3 | ||
| lx6 | ||
| lx7 | ||
| xtensa | ||
| .gitignore | ||
| arch.h | ||
| elf.h | ||
| inttypes.h | ||
| irq.h | ||
| limits.h | ||
| loadstore.h | ||
| setjmp.h | ||
| simcall.h | ||
| stdarg.h | ||
| syscall.h | ||
| types.h | ||