mirror of
https://github.com/opnsense/src.git
synced 2026-06-06 15:22:34 -04:00
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).
96 lines
2.5 KiB
Lua
Executable file
96 lines
2.5 KiB
Lua
Executable file
#!/usr/libexec/flua
|
|
--
|
|
-- SPDX-License-Identifier: BSD-2-Clause
|
|
--
|
|
-- Copyright (c) 2024 Tyler Baxter <agge@FreeBSD.org>
|
|
-- Copyright (c) 2023 Warner Losh <imp@bsdimp.com>
|
|
-- Copyright (c) 2019 Kyle Evans <kevans@FreeBSD.org>
|
|
--
|
|
|
|
-- Setup to be a module, or ran as its own script.
|
|
local syscall_h = {}
|
|
local script = not pcall(debug.getlocal, 4, 1) -- TRUE if script.
|
|
if script then
|
|
-- Add library root to the package path.
|
|
local path = arg[0]:gsub("/[^/]+.lua$", "")
|
|
package.path = package.path .. ";" .. path .. "/../?.lua"
|
|
end
|
|
|
|
local FreeBSDSyscall = require("core.freebsd-syscall")
|
|
local generator = require("tools.generator")
|
|
|
|
-- File has not been decided yet; config will decide file. Default defined as
|
|
-- /dev/null.
|
|
syscall_h.file = "/dev/null"
|
|
|
|
-- Libc has all the STD, NOSTD and SYSMUX system calls in it, as well as
|
|
-- replaced system calls dating back to FreeBSD 7. We are lucky that the
|
|
-- system call filename is just the base symbol name for it.
|
|
function syscall_h.generate(tbl, config, fh)
|
|
-- Grab the master system calls table, and prepare bookkeeping for
|
|
-- the max system call number.
|
|
local s = tbl.syscalls
|
|
local max = 0
|
|
|
|
-- Bind the generator to the parameter file.
|
|
local gen = generator:new({}, fh)
|
|
|
|
-- Write the generated preamble.
|
|
gen:preamble("System call numbers.")
|
|
|
|
for _, v in pairs(s) do
|
|
local c = v:compatLevel()
|
|
if v.num > max then
|
|
max = v.num
|
|
end
|
|
if v.type.UNIMPL then
|
|
goto skip
|
|
elseif v.type.RESERVED then
|
|
goto skip
|
|
elseif v.type.NODEF then
|
|
goto skip
|
|
elseif v.type.STD or v.type.NOSTD or v.type.SYSMUX or
|
|
c >= 7 then
|
|
gen:write(string.format("#define\t%s%s%s\t%d\n",
|
|
config.syscallprefix, v:compatPrefix(), v.name,
|
|
v.num))
|
|
elseif c >= 0 then
|
|
local comment
|
|
if c == 0 then
|
|
comment = "obsolete"
|
|
elseif c == 3 then
|
|
comment = "old"
|
|
else
|
|
comment = "freebsd" .. c
|
|
end
|
|
gen:write(string.format("\t\t\t\t/* %d is %s %s */\n",
|
|
v.num, comment, v.name))
|
|
end
|
|
::skip::
|
|
end
|
|
gen:write(string.format("#define\t%sMAXSYSCALL\t%d\n",
|
|
config.syscallprefix, max + 1))
|
|
end
|
|
|
|
-- Entry of script:
|
|
if script then
|
|
local config = require("config")
|
|
|
|
if #arg < 1 or #arg > 2 then
|
|
error("usage: " .. arg[0] .. " syscall.master")
|
|
end
|
|
|
|
local sysfile, configfile = arg[1], arg[2]
|
|
|
|
config.merge(configfile)
|
|
config.mergeCompat()
|
|
|
|
-- The parsed system call table.
|
|
local tbl = FreeBSDSyscall:new{sysfile = sysfile, config = config}
|
|
|
|
syscall_h.file = config.syshdr -- change file here
|
|
syscall_h.generate(tbl, config, syscall_h.file)
|
|
end
|
|
|
|
-- Return the module.
|
|
return syscall_h
|