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https://github.com/opnsense/src.git
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ec86d763d1
We haven't used this since commitbe67ea40c5in 2021 so stop carrying it forward. Also remove support for setting the list in syscalls.conf via the capenabled variable. This was last used by cloudabi (removed in 2021 by commitcf0ee8738e).
110 lines
2.7 KiB
Lua
Executable file
110 lines
2.7 KiB
Lua
Executable file
#!/usr/libexec/flua
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--
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-- SPDX-License-Identifier: BSD-2-Clause
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--
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-- Copyright (c) 2024 SRI International
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-- Copyright (c) 2024 Tyler Baxter <agge@FreeBSD.org>
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-- Copyright (c) 2023 Warner Losh <imp@bsdimp.com>
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-- Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
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--
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-- Setup to be a module, or ran as its own script.
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local libsys_h = {}
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local script = not pcall(debug.getlocal, 4, 1) -- TRUE if script.
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if script then
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-- Add library root to the package path.
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local path = arg[0]:gsub("/[^/]+.lua$", "")
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package.path = package.path .. ";" .. path .. "/../?.lua"
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end
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local FreeBSDSyscall = require("core.freebsd-syscall")
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local generator = require("tools.generator")
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local util = require("tools.util")
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-- File has not been decided yet; config will decide file. Default defined as
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-- /dev/null.
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libsys_h.file = "/dev/null"
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function libsys_h.generate(tbl, config, fh)
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-- Grab the master system calls table.
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local s = tbl.syscalls
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local print_decl = function (sc)
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return sc:native() and not sc.type.NODEF and
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not sc.type.SYSMUX and sc.name ~= "yield"
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end
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-- Bind the generator to the parameter file.
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local gen = generator:new({}, fh)
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-- Write the generated preamble.
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gen:preamble("Public system call stubs provided by libsys.\n" ..
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"\n" ..
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"Do not use directly, include <libsys.h> instead.")
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gen:write(string.format([[
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#ifndef __LIBSYS_H_
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#define __LIBSYS_H_
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#include <sys/_cpuset.h>
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#include <sys/_domainset.h>
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#include <sys/_ffcounter.h>
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#include <sys/_semaphore.h>
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#include <sys/_sigaltstack.h>
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#include <machine/ucontext.h> /* for mcontext_t */
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#include <sys/_ucontext.h>
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#include <sys/wait.h>
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]]))
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for name, _ in util.pairsByKeys(tbl.structs) do
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gen:write(string.format("struct %s;\n", name))
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end
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gen:write("union semun;\n")
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gen:write("\n__BEGIN_DECLS\n")
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for _, v in pairs(s) do
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if print_decl(v) then
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gen:write(string.format(
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"typedef %s (__sys_%s_t)(%s);\n",
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v.ret, v.name, v.argstr_type))
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end
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end
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gen:write("\n")
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for _, v in pairs(s) do
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if print_decl(v) then
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gen:write(string.format("%s __sys_%s(%s);\n",
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v.ret, v.name, v.argstr_type_var))
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end
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end
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gen:write("__END_DECLS\n")
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-- End
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gen:write("\n#endif /* __LIBSYS_H_ */\n")
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end
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-- Entry of script:
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if script then
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local config = require("config")
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if #arg < 1 or #arg > 2 then
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error("usage: " .. arg[0] .. " syscall.master")
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end
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local sysfile, configfile = arg[1], arg[2]
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config.merge(configfile)
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config.mergeCompat()
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-- The parsed syscall table.
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local tbl = FreeBSDSyscall:new{sysfile = sysfile, config = config}
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libsys_h.file = config.libsys_h -- change file here
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libsys_h.generate(tbl, config, libsys_h.file)
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end
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-- Return the module.
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return libsys_h
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