aboutsummaryrefslogtreecommitdiff
path: root/sys/modules/linux
Commit message (Collapse)AuthorAgeFilesLines
* MFC: linux: Make module standalone-buildableWarner Losh2024-07-031-0/+2
| | | | | | Add opt_inet.h and opt_usb.h to make linux module buildable standalone. (cherry picked from commit c5f906d32d2bc8e37f1e1911382e27af7e6240ff)
* sys: Remove $FreeBSD$: one-line sh patternWarner Losh2023-08-231-1/+0
| | | | | | | Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ Similar commit in current: (cherry picked from commit 031beb4e239b)
* linux(4): Trim unused opt_usb.h from modules MakefilesDmitry Chagin2023-03-011-1/+0
| | | | | | MFC after: 2 weeks (cherry picked from commit 825fbd087e6150eaf601612a5e7468ddc808e004)
* linux(4): Get rid of the opt_compat.h include.Dmitry Chagin2023-02-261-1/+0
| | | | | | | | | Since e013e369 COMPAT_LINUX, COMPAT_LINUX32 build options are removed, so include of opt_compat.h is no more needed. MFC after: 2 weeks (cherry picked from commit 10d16789a383a5b9e007dfd4c2e7844e044eaf7d)
* modules: Add missing opt_*.h files for stand-alone compileWarner Losh2023-02-261-0/+1
| | | | | | | | Standalone compile that we at least create these opt_*.h files. Sponsored by: Netflix (cherry picked from commit 010175a76d0676ff8d9b8d54276aff093abbc3f2)
* linux(4): Attach netlink on i386.Dmitry Chagin2023-02-091-0/+1
| | | | | | | Discussed with: melifaro MFC after: 3 days (cherry picked from commit 07db1f36848c008efb7ab6b37e199212560833ae)
* linux(4): Add coredump support to i386.Dmitry Chagin2023-02-091-1/+1
| | | | | | MFC after: 1 week (cherry picked from commit cc1b0f7d9626bbd116429014444cbf61edf708a2)
* linux: populate sv_syscallnames in each sysentvecMitchell Horne2022-11-061-0/+1
| | | | | | | | | | | | | | This allows the syscallname() function to give a usable result for Linux ABIs. Reported by: jrtc27 Reviewed by: jrtc27, markj, jhb MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D37199 (cherry picked from commit 1da65dcb1c57fae7be75ddf1bd300ddf19ced850) (cherry picked from commit f396f9b6c96f6d68d4e3606ddb090287230fc565)
* linux, linux64: improve SRCS formattingMitchell Horne2022-11-061-12/+40
| | | | | | | | | | | Sort the entries alphabetically, and list them with one entry per line. This makes the diffs much cleaner when adding or removing a new entry, as I will do in the next commit. MFC after: 1 week Sponsored by: The FreeBSD Foundation (cherry picked from commit 331784880821c6aa55188d0950e98d898c42203c)
* linux(4); Move vdso_selector_x86.c to the linux_common moduleDmitry Chagin2022-06-171-2/+2
| | | | | | MFC after: 2 weeks (cherry picked from commit 2b378d59a98a4eb1dab173c4db3b48f385c47728)
* linux(4): Deduplicate translate_traps()Dmitry Chagin2022-06-171-1/+2
| | | | | | | | | As translate_traps() is common for x86 Linuxulators, move it under x86/linux. MFC after: 2 weeks (cherry picked from commit 2434137f690dabc35586ab45fc4c4ecc5b71184f)
* linux(4): Implement vdso getcpu for x86.Dmitry Chagin2022-06-171-1/+1
| | | | | | | | This is modeled after f2395455 (by kib@). MFC after: 2 weeks (cherry picked from commit 5a6a4fb284b1a9c4b4105fd6ab8143356f3ef3f7)
* linux(4): Add a simple rseq syscall implementation.Dmitry Chagin2022-06-171-1/+1
| | | | | | | | | | | To avoid annoyng messages from glibc-2.35 test suite add the simple implementation of rseq syscall which is do nothing for now. I plan to implement it if and when the API stabilizes. MFC after: 2 weeks (cherry picked from commit ee55d560e89ac8de37def993a13d2582638273b7)
* linux: mv sys/i386/linux/linux_ptrace{,_machdep}.cEdward Tomasz Napierala2022-06-171-2/+2
| | | | | | | | | | | In preparation for machine-independent sys/compat/linux/linux_ptrace.c, rename the i386-specific Linux ptrace(2) implementation. No functional changes. Sponsored By: EPSRC Differential Revision: https://reviews.freebsd.org/D32757 (cherry picked from commit 4dfd612286ec2ecc7a05f3d4fd65a58f4b05f74c)
* linux(4): Fix amd64 gcc build.Dmitry Chagin2022-06-171-3/+5
| | | | | | | | | | Do not specify memory model and mregparm for amd64, it's only available on IA-32 architecture. Reported by: jhb, jrtc27 MFC after: 2 weeks (cherry picked from commit b0fa09a0a7e30f301cc58750dedb3d88ec39992d)
* linux(4): Fix i386 gcc build.Dmitry Chagin2022-06-171-3/+3
| | | | | | | | | | Do not specify memory model for i386. Seems that clang silencly ignores -mcmodel unlike gcc. Reported by: jhb MFC after: 2 weeks (cherry picked from commit de273c83a10c5807b52b7479e477854b77baa912)
* linux(4); Almost complete the vDSO.Dmitry Chagin2022-06-171-20/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vDSO (virtual dynamic shared object) is a small shared library that the kernel maps R/O into the address space of all Linux processes on image activation. The vDSO is a fully formed ELF image, shared by all processes with the same ABI, has no process private data. The primary purpose of the vDSO: - non-executable stack, signal trampolines not copied to the stack; - signal trampolines unwind, mandatory for the NPTL; - to avoid contex-switch overhead frequently used system calls can be implemented in the vDSO: for now gettimeofday, clock_gettime. The first two have been implemented, so add the implementation of system calls. System calls implemenation based on a native timekeeping code with some limitations: - ifunc can't be used, as vDSO r/o mapped to the process VA and rtld can't relocate symbols; - reading HPET memory is not implemented for now (TODO). In case on any error vDSO system calls fallback to the kernel system calls. For unimplemented vDSO system calls added prototypes which call corresponding kernel system call. Relnotes: yes Tested by: trasz (arm64) Differential revision: https://reviews.freebsd.org/D30900 MFC after: 2 weeks (cherry picked from commit 9931033bbfbe56a037723638cf3712366c6d943f)
* linux(4): implement coredump supportEdward Tomasz Napierala2022-06-171-0/+1
| | | | | | | | | | | | | Implement dumping core for Linux binaries on amd64, for both 32- and 64-bit executables. Some bits are still missing. This is based on a prototype by chuck@. Reviewed By: kib Sponsored By: EPSRC Differential Revision: https://reviews.freebsd.org/D30019 (cherry picked from commit 447636e43c08d697664512a50f00f93f41c0a79f)
* Fix some modules to export more used symbolsKonstantin Belousov2021-11-251-0/+2
| | | | (cherry picked from commit 5bb3134a8c21cb87b30e135ef168483f0333dabb)
* Fix i386 linux module after r367395.Tijl Coosemans2020-12-051-2/+2
| | | | | | | | | | | | | In r367395 parts of machine dependent linux_dummy.c were moved to a new machine independent file sys/compat/linux/linux_dummy.c and the existing linux_dummy.c was renamed to linux_dummy_machdep.c. Add linux_dummy_machdep.c to the linux module for i386. Rename sys/amd64/linux32/linux_dummy.c for consistency. Add the new linux_dummy.c to the linux module for i386. Notes: svn path=/head/; revision=368372
* linux(4): Deduplicate unimpl/dummy syscall handlersConrad Meyer2020-11-051-0/+6
| | | | | | | | | | No functional change. Reviewed by: emaste, trasz Differential Revision: https://reviews.freebsd.org/D27099 Notes: svn path=/head/; revision=367395
* Pass -fuse-ld=/path/to/ld if ${LD} != "ld"Alex Richardson2020-08-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is needed so that setting LD/XLD is not ignored when linking with $CC instead of directly using $LD. Currently only clang accepts an absolute path for -fuse-ld= (Clang 12+ will add a new --ld-path flag), so we now warn when building with GCC and $LD != "ld" since that might result in the wrong linker being used. We have been setting XLD=/path/to/cheri/ld.lld in CheriBSD for a long time and used a similar version of this patch to avoid linking with /usr/bin/ld. This change is also required when building FreeBSD on an Ubuntu with Clang: In that case we set XCC=/usr/lib/llvm-10/bin/clang and since /usr/lib/llvm-10/bin/ does not contain a "ld" binary the build fails with `clang: error: unable to execute command: Executable "ld" doesn't exist!` unless we pass -fuse-ld=/usr/lib/llvm-10/bin/ld.lld. This change passes -fuse-ld instead of copying ${XLD} to WOLRDTMP/bin/ld since then we would have to ensure that this file does not exist while building the bootstrap tools. The cross-linker might not be compatible with the host linker (e.g. when building on macos: host-linker= Mach-O /usr/bin/ld, cross-linker=LLVM ld.lld). Reviewed By: brooks, emaste Differential Revision: https://reviews.freebsd.org/D26055 Notes: svn path=/head/; revision=364761
* Allow overriding the tool used for stripping binariesAlex Richardson2020-08-111-2/+2
| | | | | | | | | | | | | | | | | | | Since the make variable STRIP is already used for other purposes, this uses STRIPBIN (which is also used for the same purpose by install(1). This allows using LLVM objcopy to strip binaries instead of the in-tree elftoolchain objcopy. We make use of this in CheriBSD since passing binaries generated by our toolchain to elftoolchain strip sometimes results in assertion failures. This allows working around https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248516 by specifying STRIPBIN=/path/to/llvm-strip Obtained from: CheriBSD Reviewed By: emaste, brooks Differential Revision: https://reviews.freebsd.org/D25988 Notes: svn path=/head/; revision=364119
* More fixes to build the kernel with a compiler that defaults to -fno-commonAlex Richardson2020-04-181-1/+1
| | | | | | | | | Using the same approach as the last commit for the files used by genassym.sh. Obtained from: CheriBSD Notes: svn path=/head/; revision=360072
* Replace -Werror with ${WERROR} in module buildsWarner Losh2019-08-251-1/+1
| | | | Notes: svn path=/head/; revision=351497
* Add warning to the Linuxulator makefiles that building it outside of aDmitry Chagin2019-05-131-0/+4
| | | | | | | | | | | kernel does not make sence. PR: 222861 MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20179 Notes: svn path=/head/; revision=347540
* Linuxulator depends on a fundamental kernel settings such as SMP. ManyDmitry Chagin2019-05-131-9/+0
| | | | | | | | | | | | | | | | | | | | | | of them listed in opt_global.h which is not generated while building modules outside of a kernel and such modules never match real cofigured kernel. So, we should prevent our users from building obviously defective modules. Therefore, remove the root cause of the building of modules outside of a kernel - the possibility of building modules with DEBUG or KTR flags. And remove all of DEBUG printfs as it is incomplete and in threaded programms not informative, also a half of system call does not have DEBUG printf. For debuging Linux programms we have dtrace, ktr and ktrace ability. PR: 222861 Reviewed by: trasz MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20178 Notes: svn path=/head/; revision=347538
* The build process generates assym.inc from genassym.o, so don't forgetDmitry Chagin2019-05-061-1/+2
| | | | | | | | | to clean genassym.o MFC after: 2 weeks Notes: svn path=/head/; revision=347196
* All genassym.sh usage need offset.incBryan Drewery2018-07-031-1/+1
| | | | Notes: svn path=/head/; revision=335910
* Fix futexes on i386 after the 4/4G split.Konstantin Belousov2018-04-241-3/+7
| | | | | | | | | | | Use proper method to access userspace. For now, only the slow copyout path is implemented. Reported and tested by: tijl (previous version) Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=332930
* Move most of the contents of opt_compat.h to opt_global.h.Brooks Davis2018-04-061-1/+1
| | | | | | | | | | | | | | | | | | | | | opt_compat.h is mentioned in nearly 180 files. In-progress network driver compabibility improvements may add over 100 more so this is closer to "just about everywhere" than "only some files" per the guidance in sys/conf/options. Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of sys/compat/linux/*.c. A fake _COMPAT_LINUX option ensure opt_compat.h is created on all architectures. Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the set of compiled files. Reviewed by: kib, cem, jhb, jtl Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D14941 Notes: svn path=/head/; revision=332122
* Rename assym.s to assym.incEd Maste2018-03-201-4/+4
| | | | | | | | | | | | assym is only to be included by other .s files, and should never actually be assembled by itself. Reviewed by: imp, bdrewery (earlier) Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D14180 Notes: svn path=/head/; revision=331254
* Share a single bsd-linux errno table across MD consumersEd Maste2018-03-161-1/+1
| | | | | | | | | | | | | | | | | | | | Three copies of the linuxulator linux_sysvec.c contained identical BSD to Linux errno translation tables, and future work to support other architectures will also use the same table. Move the table to a common file to be used by all. Make it 'const int' to place it in .rodata. (Some existing Linux architectures use MD errno values, but x86 and Arm share the generic set.) This change should introduce no functional change; a followup will add missing errno values. MFC after: 3 weeks Sponsored by: Turing Robotic Industries Inc. Differential Revision: https://reviews.freebsd.org/D14665 Notes: svn path=/head/; revision=331056
* Move assym.s to DPSRCS in linux modulesEd Maste2018-02-051-2/+2
| | | | | | | | | | assym.s exists only to be included by other .s files, and should not actually be assembled by itself. Sponsored by: Turing Robotic Industries Inc. Notes: svn path=/head/; revision=328883
* Revert r319053 due to lack of sence. As pointed out by kib@ opt_global.hDmitry Chagin2017-06-041-1/+1
| | | | | | | | | | contains such fundamental settings as e.g. SMP option and fake opt_global.h almost never match real configured kernels. Reported by: kib@ Notes: svn path=/head/; revision=319570
* On success, getrandom() Linux system call returns the number of bytes thatDmitry Chagin2017-05-281-1/+1
| | | | | | | | | | | | | | were copied to the buffer supplied by the user. Also fix getrandom() if Linuxulator modules are built without the kernel. PR: 219464 Submitted by: Maciej Pasternacki Reported by: Maciej Pasternacki MFC after: 1 week Notes: svn path=/head/; revision=319053
* Strip _binary_linux_locore_o_size from ${VDSO}.so as it is a low absoluteDmitry Chagin2017-05-281-0/+2
| | | | | | | | | | | symbol, and this breaks symbol lookup in ddb. Requested by: bde@ MFC after: 1 week Notes: svn path=/head/; revision=319052
* sys/modules: normalize .CURDIR-relative paths to SRCTOPEnji Cooper2017-03-041-2/+2
| | | | | | | | | | | This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 MFC after: 1 month Sponsored by: Dell EMC Isilon Notes: svn path=/head/; revision=314651
* Exclude -flto when building *genassym.oEd Maste2017-02-211-1/+1
| | | | | | | | | | | | | | | | | The build process generates *assym.h using nm from *genassym.o (which is in turn created from *genassym.c). When compiling with link-time optimization (LTO) using -flto, .o files are LLVM bitcode, not ELF objects. This is not usable by genassym.sh, so remove -flto from those ${CC} invocations. Submitted by: George Rimar Reviewed by: dim MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D9659 Notes: svn path=/head/; revision=314054
* Fix a copy/paste bug introduced during X86_64 Linuxulator work.Dmitry Chagin2016-07-101-1/+1
| | | | | | | | | | | | | | | | FreeBSD support NX bit on X86_64 processors out of the box, for i386 emulation use READ_IMPLIES_EXEC flag, introduced in r302515. While here move common part of mmap() and mprotect() code to the files in compat/linux to reduce code dupcliation between Linuxulator's. Reported by: Johannes Jost Meixner, Shawn Webb MFC after: 1 week XMFC with: r302515, r302516 Notes: svn path=/head/; revision=302517
* pass -fPIC to the assembler, not linkerEd Maste2016-02-251-2/+2
| | | | | | | | | | | | | | -fPIC has no effect on linking although it seems to be ignored by GNU ld.bfd. However, it causes ld.lld to terminate with an invalid argument error. Reviewed by: dchagin, kib MFC after: 1 month Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D5444 Notes: svn path=/head/; revision=296057
* For objcopy, use --input-target and --output-targetCraig Rodrigues2015-05-251-2/+2
| | | | | | | | | | | | When building with gcc 4.9 and binutils 2.25, using '--input' and '--output' returns an error message: objcopy: option `--input' is ambiguous Reported by: Jenkins Notes: svn path=/head/; revision=283506
* Rework signal code to allow using it by other modules, like linprocfs:Dmitry Chagin2015-05-241-1/+1
| | | | | | | | | | | | | | | | | | | | 1. Linux sigset always 64 bit on all platforms. In order to move Linux sigset code to the linux_common module define it as 64 bit int. Move Linux sigset manipulation routines to the MI path. 2. Move Linux signal number definitions to the MI path. In general, they are the same on all platforms except for a few signals. 3. Map Linux RT signals to the FreeBSD RT signals and hide signal conversion tables to avoid conversion errors. 4. Emulate Linux SIGPWR signal via FreeBSD SIGRTMIN signal which is outside of allowed on Linux signal numbers. PR: 197216 Notes: svn path=/head/; revision=283474
* Implement epoll family system calls. This is a tiny wrapperDmitry Chagin2015-05-241-1/+1
| | | | | | | | | | | | | | | around kqueue() to implement epoll subset of functionality. The kqueue user data are 32bit on i386 which is not enough for epoll user data, so we keep user data in the proc emuldata. Initial patch developed by rdivacky@ in 2007, then extended by Yuri Victorovich @ r255672 and finished by me in collaboration with mjg@ and jillies@. Differential Revision: https://reviews.freebsd.org/D1092 Notes: svn path=/head/; revision=283441
* Refund the proc emuldata struct for future use. For now move flags fromDmitry Chagin2015-05-241-2/+3
| | | | | | | | | | | | | thread emuldata to proc emuldata as it was originally intended. As we can have both 64 & 32 bit Linuxulator running any eventhandler can be called twice for us. To prevent this move eventhandlers code from linux_emul.c to the linux_common.ko module. Differential Revision: https://reviews.freebsd.org/D1073 Notes: svn path=/head/; revision=283422
* Introduce a new module linux_common.ko which is intended for theDmitry Chagin2015-05-241-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | following primary purposes: 1. Remove the dependency of linsysfs and linprocfs modules from linux.ko, which will be architecture specific on amd64. 2. Incorporate into linux_common.ko general code for platforms on which we'll support two Linuxulator modules (for both instruction set - 32 & 64 bit). 3. Move malloc(9) declaration to linux_common.ko, to enable getting memory usage statistics properly. Currently linux_common.ko incorporates a code from linux_mib.c and linux_util.c and linprocfs, linsysfs and linux kernel modules depend on linux_common.ko. Temporarily remove dtrace garbage from linux_mib.c and linux_util.c Differential Revision: https://reviews.freebsd.org/D1072 In collaboration with: Vassilis Laganakos. Reviewed by: trasz Notes: svn path=/head/; revision=283421
* Implement vdso - virtual dynamic shared object. Through vdso LinuxDmitry Chagin2015-05-241-4/+25
| | | | | | | | | | | | exposes functions from kernel with proper DWARF CFI information so that it becomes easier to unwind through them. Using vdso is a mandatory for a thread cancelation && cleanup on a modern glibc. Differential Revision: https://reviews.freebsd.org/D1060 Notes: svn path=/head/; revision=283407
* Retire the '@' symlink. It isn't really needed and causes moreWarner Losh2014-11-061-4/+1
| | | | | | | | | | | | problems than it solves. SYSDIR is already defined almost always and can be used instead. Working around the one case where it isn't is much easier than working around the fact that @ may not exist in 18 other places. Differential Revision: https://reviews.freebsd.org/D1100 Notes: svn path=/head/; revision=274184
* Add foo_genassym.c files to DPSRCS so dependencies for them are generated.John Baldwin2014-10-271-0/+1
| | | | | | | | This ensures these objects are rebuilt to generate an updated header of assembly constants if needed. Notes: svn path=/head/; revision=273744
* move linux*_locore.s and linux*_support.s to SRCS, remove the OBJSWarner Losh2014-10-171-6/+5
| | | | | | | | | | | | | entry and remove now-redunant dependencies. Add assym.s to linux*_locore.s build, as it depends on it. With this change, linux*.ko no longer builds every time through a KERNFAST run. Sponsored by: Netflix Notes: svn path=/head/; revision=273206
generated by cgit v1.3 (git 2.53.0) at 2026-08-01 03:26:18 +0000