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* sysent: GC sys/tools/makesyscalls.luaBrooks Davis2024-10-301-1710/+0
| | | | System call entry generation now lives in sys/tools/syscalls/*
* makesyscalls.lua: converstion -> conversionBrooks Davis2024-10-221-1/+1
| | | | Reported by: agge3 <sterspark@gmail.com>
* sysent: fix a couple more do-no-edit commentsBrooks Davis2024-10-031-0/+2
| | | | | | | Add blank like after comment to align with upcoming refactor for makesysent.lua. Fixes: 0d490c6a445a sysent: make header comments more consistent
* sysent: make header comments more consistentBrooks Davis2024-10-011-4/+11
| | | | | | An upcoming refactor appends do-not-merge comments to all headers centrally to do the same to reduce the final diff. Headers also start with a comment line (for /*) and end with a blank line.
* sysent: Remove comment aligningagge32024-10-011-24/+4
| | | | | | | | Comment aligning was inconsistent and required a ton of book-keeping. Replaced comment aligning with a simple, single tab out. Pull Request: https://github.com/freebsd/freebsd-src/pull/1441 Signed-off-by: agge3 <sterspark@gmail.com>
* makesyscalls: generate core libsys headerBrooks Davis2024-04-161-0/+91
| | | | | | | | | Create a header covering most of the "stable" libsys interfaces. Specifically __sys_<foo> syscall stubs and __sys_<foo>_t typedefs for those interfaces. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D44386
* sysproto.h: sys/acl.h -> sys/types.hBrooks Davis2024-04-151-1/+1
| | | | | | | | | In sysproto.h, stop including sys/acl.h as syscall defintions now use __acl* types from sys/_types.h. Add sys/types.h to provide types previously provided by sys/param.h (via sys/acl.h). Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D44467
* libsys: don't try to expose yieldBrooks Davis2024-03-071-0/+4
| | | | | | | | | | The undocumented yield system call has never been implemented via libc or libsys (except accidentally for <15 minutes in 1998 between commits abd529cebab9 and 0db2fac06ab7). Avoid trying to export it now to avoid failures when linking with --no-undefined-version. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D44236
* lib{c,sys}: expose _getlogin consistentlyBrooks Davis2024-02-291-1/+1
| | | | | | | | | | Historically we exposed _getlogin as a private symbol on a per-arch basis (except on aarch64 and riscv) for no obvious reason. We now need to expose it for libc's use so remove the special case from makesyscalls.lua and expose it in the generated syscalls.map. Reviewed by: kib Differential Revision: https://reviews.freebsd.org/D44116
* makesyscalls: generate private syscall symbolsBrooks Davis2024-02-051-0/+16
| | | | | | | | | | | | | | | | | For libsys we need to expose all the private symbols (_ and __sys_ prefixes) so libsys can replace the libc versions. Rather than trying to maintain a table, teach makesyscalls to generate it. There are a small number of "_" prefixed symbols that are exposed as public interfaces rather than in the private symbol space. Since the list is short, just hardcode it for now. If doesn't appear that we need to export freebsd#_foo symbols for compat system calls explicitly. If it turns out we do, there are probably few enough of them to handle seperately. Reviewed by: kib, emaste, imp Pull Request: https://github.com/freebsd/freebsd-src/pull/908
* makesyscalls: add COMPAT14 supportBrooks Davis2023-12-011-0/+1
| | | | | | Reviewed by: kevans, imp Fixes: 84d12f887c91f Add a COMPAT_FREEBSD14 kernel option Differential Revision: https://reviews.freebsd.org/D42861
* makesyscall: Simplify a bit emitting syscall declarationsOlivier Certner2023-11-211-8/+5
| | | | | | | Reviewed by: kevans, imp MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D42168
* makesyscalls: don't make syscall.mk by defaultBrooks Davis2023-11-181-1/+1
| | | | | | | | | | | We only want to produce syscall.mk for the main syscall table so default to not producing it (send it to /dev/null) and add a syscalls.conf to sys/kern to trigger the creation of sys/sys/syscall.mk. This eliminates the need for entries in other syscalls.conf files and is a cleaner pattern going forward. Reviewed by: kevans, imp Differential Revision: https://reviews.freebsd.org/D42663
* sys: Remove $FreeBSD$: two-line lua tagWarner Losh2023-08-161-2/+0
| | | | Remove /^--\n--\s*\$FreeBSD\$.*$\n/
* makesyscall: Stop generating $FreeBSD$Warner Losh2023-06-091-14/+8
| | | | | | | | | With 14 coming, we no longer need to generate the $FreeBSD$. We can likely MFC that to 13 as well. MFC After: 2 weeks Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D39879
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* makesyscalls.lua: Minor fluff removalWarner Losh2023-04-201-2/+2
| | | | | | | | luacheck pointed out two minor issues: line isn't declared as a global, so declare it local. Also remove an unused parameter. Suggested by: kevans Sponsored by: Netflix
* makesyscalls.lua: Use "sysxxx" consistentlyWarner Losh2023-04-201-8/+8
| | | | | | | Find the few places where we use 'sysxxx' and use "sysxxx" instead to be more consistent. Sponsored by: Netflix
* makesyscalls.lua: Make more luaishWarner Losh2023-04-201-124/+124
| | | | | | | | | x["y"] can be written as x.y, which looks better and is a more typical lua idiom. Sponsored by: Netflix Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D39709
* syscallarg_t: Add a type for system call argumentsBrooks Davis2022-03-281-5/+5
| | | | | | | | | | | | | | This more clearly differentiates system call arguments from integer registers and return values. On current architectures it has no effect, but on architectures where pointers are not integers (CHERI) and may not even share registers (CHERI-MIPS) it is necessiary to differentiate between system call arguments (syscallarg_t) and integer register values (register_t). Obtained from: CheriBSD Reviewed by: imp, kib Differential Revision: https://reviews.freebsd.org/D33780
* Revert "syscallarg_t: Add a type for system call arguments"Brooks Davis2022-01-121-5/+5
| | | | | | | | Missed issues in truss on at least armv7 and powerpcspe need to be resolved before recommit. This reverts commit 3889fb8af0b611e3126dc250ebffb01805152104. This reverts commit 1544e0f5d1f1e3b8c10a64cb899a936976ca7ea4.
* syscallarg_t: Add a type for system call argumentsBrooks Davis2022-01-121-5/+5
| | | | | | | | | | | | | | This more clearly differentiates system call arguments from integer registers and return values. On current architectures it has no effect, but on architectures where pointers are not integers (CHERI) and may not even share registers (CHERI-MIPS) it is necessiary to differentiate between system call arguments (syscallarg_t) and integer register values (register_t). Obtained from: CheriBSD Reviewed by: imp, kib Differential Revision: https://reviews.freebsd.org/D33780
* sysent: move away from allowing all compat options for other ABIsKyle Evans2021-12-171-16/+33
| | | | | | | | | | | | | | | Notably, the current compat_options only makes sense for native and freebsd32 ABIs. For the others, it just adds cruft. Switch to having sets of compat options, and default to the native set. Setup the other ABIs where it doesn't make sense to opt-out of the native set. This removes some redundant COMPAT_FREEBSD* stuff from Linuxolator bits. line_expr in makesyscalls.lua is fixed to allow empty strings to be specified, since they're harmless. Reviewed by: brooks, kib (both earlier version) Differential Revision: https://reviews.freebsd.org/D33356
* syscalls: add COMPAT13Konstantin Belousov2021-12-091-0/+1
| | | | | | | Reviewed by: brooks Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D33343
* makesyscalls: add a new SYSMUX typeBrooks Davis2021-11-291-5/+18
| | | | | | | | This type is for system call multiplexers (syscall(2), __syscall(2)) that don't have a normal handler and instead are handled in the machine-dependent syscall code. Reviewed by: kib, imp
* makesyscalls: strip _Contains_ argument annotationsBrooks Davis2021-11-221-0/+1
| | | | Reviewed by: kevans
* makesyscalls: add override of ABI change detectionBrooks Davis2021-11-221-0/+27
| | | | | | | | | | | While we can detect most ABI changes through analysis of syscalls.master with suitable annotations, to cases are handled in the core implementation and others have changes that can not be infered. Add two new config variables syscall_abi_change and syscall_no_abi_change which override the detected value. Both are space-seperated lists of syscall names. Reviewed by: kevans
* makesyscalls: automate detection of ABI changesBrooks Davis2021-11-221-9/+24
| | | | | | | | | Use pattern matching including matches of _Contains_*_ argument annotations to (mostly) determine which system calls require ABI-specific handling. Automatically treat syscalls as NOPROTO if no ABI changes are present. Reviewed by: kevans
* makesyscalls.lua: Add the ABI function prefix reliably.Brooks Davis2021-11-221-3/+7
| | | | | | | The previous code mostly worked, but ended up adding bogus sys_<foo>() declerations. Reviewed by: kevans
* makesyscalls: allow config to force OBSOL and UNIMPLBrooks Davis2021-11-221-8/+45
| | | | | | | | | | The obsol and unimpl config variables are space-seperated lists of syscalls that should treated as being declared OBSOL and UNIMPL. The allows an ABI to exclude select system calls listed in syscalls.master. Reviewed by: kevans
* makesyscalls: handle 64-bit args on 32-bitBrooks Davis2021-11-221-19/+87
| | | | | | | | | | | | | | | | | | | | | | On 32-bit architectures, 64-bit arguments are passed in pairs of registers. On non-x86 architectures these arguments must be in evenly aligned registers which necessiciates inserting a pad register into the argument list. This has historically been supported by adding ifdefs around padded and unpadded syscall defintions in syscalls.master. In order to enable generation of 32-bit support files from the base syscalls.master, pull this support in to makesyscalls.lua enabled by adding pair_64bit to abi_flags. The changes to sys_proto.h simply add #ifdef PAD64_REQUIRED around pad arguments in struct <syscall>_args. In systrace_args(), replace static syscall index values with post-incremented indexs allowing a simple ifdef around the argument. Under -O1 or higher code generation is identical. systrace_entry_setargdesc() is a bit more complicated as we switch on argument indices. Solve this with some use of define/undef pairs to compute the correct indices. Reviewed by: kevans
* makesyscalls: handle arrays of pointersBrooks Davis2021-11-221-0/+12
| | | | | | | When the config variable abi_intptr_t is not "", transform arrays of pointers to arrays of abi_intptr_t. Reviewed by: kevans
* makesyscalls: handle longs in ABI compatBrooks Davis2021-11-221-0/+23
| | | | | | | | | | | | | | Replace long-derived types with their abi equivalent where required by the target ABI. There are two cases: - All pointers to types that go from 64-bit to 32-bit between the default ABI and the target ABI. - Signed arguments that go from 64-bit to 32-bit (these require sign-extension before passing to general kernel ABIs). This adds four new config variables: abi_long, semid_t, abi_size_t, and abi_u_long which default to long, size_t, and u_long respectively. Reviewed by: kevans
* makesyscalls.lua: Allow translation of intptr_t argumentsBrooks Davis2021-11-221-1/+6
| | | | | | | | Translate instances of intptr_t to the config value abi_intptr_t (defaults to "intptr_t"). Used in CheriABI to translate intptr_t to intcap_t for hybrid kernels. Reviewed by: kevans
* makesyscalls: intptr_t arguments are pointersBrooks Davis2021-11-221-2/+2
| | | | | | | Match intptr_t arguments as pointers. Currently this is a no-op change to systrace_args.c. Reviewed by: kevans
* makesyscalls: Add a way to include per-ABI headersBrooks Davis2021-11-221-0/+11
| | | | | | | | | | | | When the string %%ABI_HEADERS%% is found in syscalls.master, replace it with the contents of the abi_headers config variable. This allows an ABI-specific syscalls.conf to add lines like: #include <compat/freebsd32/freebsd32.h> when working from a shared syscalls.master. Reviewed by: kevans
* makesyscalls: allow multiple expressions for each abi changeBrooks Davis2021-11-221-6/+16
| | | | | | | Limitations in lua patterns means we need to be able to match more than one possible expression. Reviewed by: kevans
* makesyscalls: Fix expression for time_t_sizeBrooks Davis2021-11-221-1/+1
| | | | Reviewed by: kevans
* makesyscalls: Remove _native suffix handlingBrooks Davis2021-11-221-1/+0
| | | | | | This supported a hack we used in CheriBSD which has been removed. Reviewed by: kevans
* makesyscalls: make strip_abi_prefix more robustBrooks Davis2021-11-171-0/+3
| | | | | | | Allow strip_abi_prefix() to be called with nil and return nil in that case. This simplifies handling of RESERVED entries. Reviewed by: kevans
* makesyscalls: sprinkle some assert() on standard function callsKyle Evans2021-09-251-30/+34
| | | | | | | | | | | Improves our error reporting, ensuring that we aren't just ignoring errors in the common case. Note specifically the boundary where we have to change up our error handling approach. It's fine to error() out up until we create the tempdir, then the rest should try to handle it gracefully and abort(). A future change will clean this up further by pcall'ing all of the bits that cannot currently error() without cleaning up.
* makesyscalls: rip out arbitrary command executionKyle Evans2021-09-251-33/+2
| | | | | | | | | | | | | | This was previously needed only for CloudABI, which used it to generate its capenabled from syscalls.master. CloudABI was removed in cf0ee8738e31, so we don't need to support this anymore. Others looking to do similar things should come up with a more integrated technique, such as a .conf flag or pattern/glob support. brooks suggests that it could be done in modern makesyscalls.lua by adding a config flag to specify always-on/initial flags (CAPENABLED). Reviewed by: brooks, imp MFC after: never Differential Revision: https://reviews.freebsd.org/D32095
* makesyscalls: stop trying to remove . and .. in cleanupKyle Evans2021-09-251-1/+3
| | | | | lfs.dir() will include these entries, but os.remove() cannot remove them for obvious reasons.
* Drop cloudabiKonstantin Belousov2021-09-211-4/+2
| | | | | | | | | | | | | According to https://github.com/NuxiNL/cloudlibc: CloudABI is no longer being maintained. It was an awesome experiment, but it never got enough traction to be sustainable. There is no reason to keep it in FreeBSD. Approved by: ed (private mail) Reviewed by: emaste Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D31923
* makesyscalls.lua: add a CAPENABLED flagBrooks Davis2021-09-011-1/+3
| | | | | | | | | | The CAPENABLED flag indicates that the syscall can be used in capsicum capability mode. It is intended to replace capabilities.conf. Reviewed by: kevans, emaste MFC after: 1 week Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D31349
* makesyscalls.lua: improve generated file style(9) complianceEd Maste2021-05-131-4/+4
| | | | | | | | | | | | We generally like to avoid style changes when other changes are not planned. In this case there are some makesyscalls.lua changes in the pipeline, and this cleans up style nits in generated files that were highlighted by experiments with clang-format. Reviewed by: brooks, kevans MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D30235
* syscalls.master: Add a new syscall type: RESERVEDBrooks Davis2021-01-261-8/+15
| | | | | | | | | 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
* Make makesyscalls.lua initialize 'struct sysent' entries using c99Edward Tomasz Napierala2020-09-251-10/+17
| | | | | | | | | | | | designated initializers. This makes it easier to modify 'struct sysent' layout. Reviewed by: kevans Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D26530 Notes: svn path=/head/; revision=366145
* makesyscalls.lua: improve syscall ordering validationKyle Evans2020-08-041-6/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were two separate issues here: 1.) #if/#else wasn't taken into account at all for maxsyscall figures, but 2.) We didn't validate contiguous syscall numbers anyways... This kind of inconsistency is bad as we don't currently ensure explicit indexing of, e.g., the sysent array if one syscall is unimplemented/missing. This could be fixed and might be more robust, but it's also good to have the "documentation" that comes from being explicit as to what the missing syscalls are. The new version looks much like the awk version; stash off the current 'last highest syscall seen' if we hit an #if, restore to that if we hit an #else, and make sure that we're explicitly always defining the next syscall. The logic at the tail end of process_syscall_def that moves maxsyscall has been 'cleaned up' a little since we're now ensuring that it's monotonically increasing earlier in the function. At the moment I think it's unlikely we'd see range-definitions that are not UNIMPL, but there's no reason to specifically handle that case for bumping maxsyscall there. This change was provoked by reading the commit message for r363832 and realizing that this validation hadn't been included in the initial rewrite to lua. Reviewed by: brooks Differential Revision: https://reviews.freebsd.org/D25945 Notes: svn path=/head/; revision=363869
* makesyscalls.lua: generate all files in /tmp, write into place at the endKyle Evans2020-01-101-13/+23
| | | | | | | | | | | | | | | | This makes makesyscalls.lua more parallel-friendly, or at least not as hostile to the idea. We get into situations where we're running parallel if we end up with MAKE_JOBS>1 entering any of the sysent targets, since each output file is recognized a distinct build step that needs to be executed. Another commit will add some .ORDER to further improve the situation. Reported by: jhb Reviewed by: brooks Differential Revision: https://reviews.freebsd.org/D23098 Notes: svn path=/head/; revision=356603
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