48 lines
774 B
Python
48 lines
774 B
Python
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#!/usr/bin/env python3
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template = """.global {name}
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{name}:
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li a7, SYS_{name}
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ecall
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ret"""
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def genstub(syscall: str):
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return template.format(name=syscall)
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syscalls = [
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"fork",
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"exit",
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"wait",
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"pipe",
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"read",
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"write",
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"close",
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"kill",
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"exec",
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"open",
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"mknod",
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"unlink",
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"fstat",
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"link",
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"mkdir",
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"chdir",
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"dup",
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"getpid",
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"sbrk",
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"sleep",
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"uptime",
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"trace",
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"halt",
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]
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assembly = "\n\n".join(map(genstub, syscalls))
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# TODO: Perhaps do some more specific assertions on the code here
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assert len(assembly) > 0, "No assembly code generated. Something is fishy"
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print("# generated by usys.py - do not edit\n")
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print('#include "kernel/syscall.h"\n')
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print(assembly)
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