f32f3638f4
- Got rid of dummy proc[0]. Now proc[0] is init. - Added initcode.S to exec /init, so that /init is just a regular binary. - Moved exec out of sysfile to exec.c - Moved code dealing with fs guts (like struct inode) from sysfile.c to fs.c. Code dealing with system call arguments stays in sysfile.c - Refactored directory routines in fs.c; should be simpler. - Changed iget to return *unlocked* inode structure. This solves the lookup-then-use race in namei without introducing deadlocks. It also enabled getting rid of the dummy proc[0].
28 lines
335 B
ArmAsm
28 lines
335 B
ArmAsm
# Initial process execs /init.
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#include "syscall.h"
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#include "traps.h"
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# exec(init, argv)
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start:
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pushl $argv
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pushl $init
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pushl $0
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movl $SYS_exec, %eax
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int $T_SYSCALL
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# for(;;) exit();
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exit:
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movl $SYS_exit, %eax
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int $T_SYSCALL
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jmp exit
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# "/init\0"
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init:
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.string "/init\0"
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.p2align 2
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argv:
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.long init
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.long 0
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