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186724e751
This change adds a new interface DSL for specifying objects (with methods) and interfaces (that expose objects, and optionally have their own methods). Significant changes: - Add the new scripts/definitions Python module to parse the DSL - Add the new definitions directory containing DSL definition files - Use cog to generate syscall-related code in kernel and libj6 - Unify ordering of pointer + length pairs in interfaces
57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
// vim: ft=cpp
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#include <stddef.h>
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#include "kutil/memory.h"
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#include "console.h"
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#include "debug.h"
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#include "log.h"
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#include "syscall.h"
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extern "C" {
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void syscall_invalid(uint64_t call);
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}
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/*[[[cog code generation
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from definitions.context import Context
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ctx = Context(definitions_path)
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ctx.parse("syscalls.def")
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syscalls = ctx.interfaces['syscalls']
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cog.outl(f"constexpr size_t num_syscalls = {len(syscalls.methods)};")
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]]]*/
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/// [[[end]]]
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uintptr_t syscall_registry[num_syscalls] __attribute__((section(".syscall_registry")));
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void
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syscall_invalid(uint64_t call)
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{
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console *cons = console::get();
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cons->set_color(9);
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cons->printf("\nReceived unknown syscall: %02x\n", call);
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cons->set_color();
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_halt();
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}
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void
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syscall_initialize()
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{
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kutil::memset(&syscall_registry, 0, sizeof(syscall_registry));
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/*[[[cog code generation
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for id, scope, method in syscalls.methods:
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if scope:
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name = f"{scope.name}_{method.name}"
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else:
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name = method.name
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cog.outl(f"syscall_registry[{id}] = reinterpret_cast<uintptr_t>(syscalls::{name});")
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cog.outl(f"""log::debug(logs::syscall, "Enabling syscall {id:x} as {name}");""")
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cog.outl("")
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]]]*/
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//[[[end]]]
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}
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