rajamesandClaude Opus 5.5
954b4d5f70
KernelArgs gains screen_boot; cmdline.c parses screen=boot (with or without --; any other value: off). With it, the v4 boot keeps the console mirrored to the framebuffer after POST, with the TTF font, and says 'Screen: the console stays on until login (screen=boot)'; login and logout work as without it, and nothing can be typed without Zuse. Without it, unchanged. For the SER5, which has no known serial port (ruled 2026-10-28). BRINGUP.md: the smoke test's stick and starforth.cfg. Tests: screen_boot (new) failed on amd64 and aarch64 before, passes on all three ISAs after; screen_dark_until_login, screen_dark_after_logout, zuse pass. Acceptance: amd64, aarch64, riscv64 to [zuse@Hera] ok>, POST 538/538, dict_hash 0xfec8c47cfc6f437f; v4 suite and test-32 0 failures. Plan: docs/v4.0.0/plans/2026-10-27-stick-4-one-disk.md, Task 5. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
60 lines
2.5 KiB
C
60 lines
2.5 KiB
C
/*
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* kernel_args.h — boot command-line argument structure and defaults
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*
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* KernelArgs is populated by the UEFI loader from LoadOptions (or the
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* one-shot StarForthBootArgs NVRAM variable) and carried to kernel_main
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* via BootInfo.args. All fields have safe defaults so the kernel boots
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* normally when no arguments are present.
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*/
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#ifndef STARKERNEL_KERNEL_ARGS_H
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#define STARKERNEL_KERNEL_ARGS_H
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#include <stdint.h>
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/* ---- Buffer size -------------------------------------------------------- */
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/* Shared by BootInfo.args.raw, the NVRAM variable payload, and cmdline.c. */
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#define KERNEL_ARGS_CMDLINE_MAX 512
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/* ---- Defaults ----------------------------------------------------------- */
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#define KARGS_DEFAULT_STACK_SIZE (2ULL * 1024ULL * 1024ULL) /* 2 MB */
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#define KARGS_DEFAULT_HEAP_SIZE (2ULL * 1024ULL * 1024ULL * 1024ULL) /* 2 GB */
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#define KARGS_DEFAULT_LOG_LEVEL 2 /* warn — quiet by default; --log-level=info/debug re-enables ECW word-execution tracing */
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#define KARGS_DEFAULT_RUN_DOE 0
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/* Which system runs, where a kernel carries both (boards/BRINGUP.md A6,
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* ruled 2026-10-14: one image, chosen at boot). DEFAULT means the build's
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* own default (kernel/Makefile V4_DEFAULT). */
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#define KARGS_SYSTEM_DEFAULT 0
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#define KARGS_SYSTEM_V3 3
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#define KARGS_SYSTEM_V4 4
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/* ---- Log level constants ------------------------------------------------ */
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#define KARGS_LOG_DEBUG 0
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#define KARGS_LOG_INFO 1
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#define KARGS_LOG_WARN 2
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#define KARGS_LOG_ERROR 3
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/* ---- REBOOT escape hatch ------------------------------------------------ */
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/* Max consecutive REBOOT attempts before the escape hatch fires.
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* On the Nth boot the counter is checked; if >= REBOOT_MAX_TRIES the
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* REBOOT word drops to REPL instead of calling ResetSystem. */
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#define REBOOT_MAX_TRIES 3
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/* ---- Struct ------------------------------------------------------------ */
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typedef struct {
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/* Memory sizing — 0 means "use default" */
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uint64_t stack_size; /* --stack=<N>[KMG] */
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uint64_t heap_size; /* --heap=<N>[KMG] */
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/* Runtime behaviour */
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int run_doe; /* --doe (0 = off) */
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int log_level; /* --log-level=... (KARGS_LOG_*) */
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int system; /* system=v3 | system=v4 (KARGS_SYSTEM_*), 2026-10-14 */
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int screen_boot; /* screen=boot: the console stays on the screen until login (0 = off), 2026-10-28 */
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/* Raw unparsed cmdline; always NUL-terminated */
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char raw[KERNEL_ARGS_CMDLINE_MAX];
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} KernelArgs;
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#endif /* STARKERNEL_KERNEL_ARGS_H */
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