a1c965da1e
Sixty-five headers sat side by side in include/, so `#include "irq.h"` said nothing about where irq.h was or what it belonged to, and errno.h, stat.h and fcntl.h at the top shadowed the system's for any host tool built with -I./include. They are in folders now -- arch/ core/ fs/ dev/ gfx/ net/ uapi/ (and ldls/ for the Linux driver layer) -- and every include names the folder, as Linux's do: "core/proc.h". Done mechanically and checked the hard way: the kernel built from this tree disassembles identically to the one built from the tree before it. The full image boots, and userland is the same set of programs. Paths in docs and comments follow; docs/guides/layout.md has a table of what is where, and tools/fix-includes.py rewrites old-style includes from the folders in the tree, for code written before this. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S1giNvrHTrPMPw7V6x1kQ4
29 lines
No EOL
591 B
ArmAsm
29 lines
No EOL
591 B
ArmAsm
#include "core/syscall.h"
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#include "arch/traps.h"
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.code64
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.section .text
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.global start
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start:
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lea init(%rip), %rdi
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lea argv(%rip), %rsi
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mov $SYS_exec, %rax
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syscall
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exit:
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mov $SYS_exit, %rax
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syscall
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jmp exit
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// The kernel's very first exec. There is no fallback and there deliberately
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// is not one: /bin/init was the older, hardcoded fork-a-shell process 1, it was
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// unreachable from the day this string changed, and an unreachable fallback is
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// a thing that rots rather than a thing that saves you.
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init:
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.string "/bin/schinit"
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.p2align 3
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argv:
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.quad init
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.quad 0
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