git: 81184e92e0d7 - stable/13 - makesyscalls.lua: Add a new syscall type: RESERVED
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Date: Tue, 19 Oct 2021 23:20:33 UTC
The branch stable/13 has been updated by brooks: URL: https://cgit.FreeBSD.org/src/commit/?id=81184e92e0d73714096bd49857670e3629994ce2 commit 81184e92e0d73714096bd49857670e3629994ce2 Author: Brooks Davis <brooks@FreeBSD.org> AuthorDate: 2021-10-19 23:19:56 +0000 Commit: Brooks Davis <brooks@FreeBSD.org> CommitDate: 2021-10-19 23:19:56 +0000 makesyscalls.lua: Add a new syscall type: RESERVED RESERVED syscall number are reserved for local/vendor use. RESERVED is identical to UNIMPL except that comments are ignored. Reviewed by: kevans Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D27988 (cherry picked from commit 119fa6ee8a8056aab5e4ab1719d3c563cdb4a95a) --- sys/kern/syscalls.master | 3 ++- sys/tools/makesyscalls.lua | 23 +++++++++++++++-------- 2 files changed, 17 insertions(+), 9 deletions(-) diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master index d3ec771aac6f..81f016a0c073 100644 --- a/sys/kern/syscalls.master +++ b/sys/kern/syscalls.master @@ -11,7 +11,7 @@ ; there is no audit event for the call at this time. For the ; case where the event exists, but we don't want auditing, the ; event should be #defined to AUE_NULL in audit_kevents.h. -; type one of STD, OBSOL, UNIMPL, COMPAT, COMPAT4, COMPAT6, +; type one of STD, OBSOL, RESERVED, UNIMPL, COMPAT, COMPAT4, COMPAT6, ; COMPAT7, COMPAT11, COMPAT12, NODEF, NOARGS, NOPROTO, NOSTD ; The COMPAT* options may be combined with one or more NO* ; options separated by '|' with no spaces (e.g. COMPAT|NOARGS) @@ -32,6 +32,7 @@ ; COMPAT11 included on COMPAT_FREEBSD11 #ifdef (FreeBSD 11 compat) ; COMPAT12 included on COMPAT_FREEBSD12 #ifdef (FreeBSD 12 compat) ; OBSOL obsolete, not included in system, only specifies name +; RESERVED reserved for local or vendor use ; UNIMPL not implemented, placeholder only ; NOSTD implemented but as a lkm that can be statically ; compiled in; sysent entry will be filled with lkmressys diff --git a/sys/tools/makesyscalls.lua b/sys/tools/makesyscalls.lua index 85b76a44150c..49a9e283e646 100644 --- a/sys/tools/makesyscalls.lua +++ b/sys/tools/makesyscalls.lua @@ -148,12 +148,13 @@ local known_abi_flags = { local known_flags = { STD = 0x00000001, OBSOL = 0x00000002, - UNIMPL = 0x00000004, - NODEF = 0x00000008, - NOARGS = 0x00000010, - NOPROTO = 0x00000020, - NOSTD = 0x00000040, - NOTSTATIC = 0x00000080, + RESERVED = 0x00000004, + UNIMPL = 0x00000008, + NODEF = 0x00000010, + NOARGS = 0x00000020, + NOPROTO = 0x00000040, + NOSTD = 0x00000080, + NOTSTATIC = 0x00000100, -- Compat flags start from here. We have plenty of space. } @@ -906,6 +907,10 @@ local function handle_unimpl(sysnum, sysstart, sysend, comment) end end +local function handle_reserved(sysnum, sysstart, sysend, comment) + handle_unimpl(sysnum, sysstart, sysend, "reserved for local use") +end + process_syscall_def = function(line) local sysstart, sysend, flags, funcname, sysflags local thr_flag, syscallret @@ -950,8 +955,8 @@ process_syscall_def = function(line) flags = flags | known_flags[flag] end - if (flags & known_flags["UNIMPL"]) == 0 and sysnum == nil then - abort(1, "Range only allowed with UNIMPL: " .. line) + if (flags & get_mask({"RESERVED", "UNIMPL"})) == 0 and sysnum == nil then + abort(1, "Range only allowed with RESERVED and UNIMPL: " .. line) end if (flags & known_flags["NOTSTATIC"]) ~= 0 then @@ -1115,6 +1120,8 @@ process_syscall_def = function(line) argalias) elseif flags & known_flags["OBSOL"] ~= 0 then handle_obsol(sysnum, funcname, funcomment) + elseif flags & known_flags["RESERVED"] ~= 0 then + handle_reserved(sysnum, sysstart, sysend) elseif flags & known_flags["UNIMPL"] ~= 0 then handle_unimpl(sysnum, sysstart, sysend, funcomment) else