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* Implement accept4 syscall.dchagin2009-06-011-0/+1
| | | | | Approved by: kib (mentor) MFC after: 1 month
* Somewhere between 2.6.23 and 2.6.27, Linux added SOCK_CLOEXEC anddchagin2009-05-161-0/+1
| | | | | | | | | | SOCK_NONBLOCK flags, that allow to save fcntl() calls. Implement a variation of the socket() syscall which takes a flags in addition to the type argument. Approved by: kib (mentor) MFC after: 1 month
* To avoid excessive code duplication move MI definitions to the MIdchagin2009-05-071-8/+0
| | | | | | | header file. As it is defined in Linux. Approved by: kib (mentor) MFC after: 1 month
* Add AT_PLATFORM, AT_HWCAP and AT_CLKTCK auxiliary vector entries whichdchagin2009-03-041-0/+4
| | | | | | | | | | | | | | are used by glibc. This silents the message "2.4+ kernel w/o ELF notes?" from some programs at start, among them are top and pkill. Do the assignment of the vector entries in elf_linux_fixup() as it is done in glibc. Fix some minor style issues. Submitted by: Marcin Cieslak <saper at SYSTEM PL> Approved by: kib (mentor) MFC after: 1 week
* Make linux_sendmsg() and linux_recvmsg() work on linux32/amd64.kib2008-11-291-0/+16
| | | | | | | | Change types used in the linux' struct msghdr and struct cmsghdr definitions to the properly-sized architecture-specific types. Move ancillary data handler from linux_sendit() to linux_sendmsg(). Submitted by: dchagin
* In the robust futexes list head, futex_offset shall be signed,kib2008-11-161-1/+1
| | | | | | and glibc actually supplies negative offsets. Change l_ulong to l_long. Submitted by: dchagin
* Correctly fill siginfo for the signals delivered by linux tkill/tgkill.kib2008-10-191-11/+21
| | | | | | | | | | | | | | | | | | | | | It is required for async cancellation to work. Fix PROC_LOCK leak in linux_tgkill when signal delivery attempt is made to not linux process. Do not call em_find(p, ...) with p unlocked. Move common code for linux_tkill() and linux_tgkill() into linux_do_tkill(). Change linux siginfo_t definition to match actual linux one. Extend uid fields to 4 bytes from 2. The extension does not change structure layout and is binary compatible with previous definition, because i386 is little endian, and each uid field has 2 byte padding after it. Reported by: Nicolas Joly <njoly pasteur fr> Submitted by: dchangin MFC after: 1 month
* Make robust futexes work on linux32/amd64. Use PTRIN to readkib2008-10-141-0/+11
| | | | | | | | user-mode pointers. Change types used in the structures definitions to properly-sized architecture-specific types. Submitted by: dchagin MFC after: 1 week
* Implement the linux syscallskib2008-04-081-2/+0
| | | | | | | | | openat, mkdirat, mknodat, fchownat, futimesat, fstatat, unlinkat, renameat, linkat, symlinkat, readlinkat, fchmodat, faccessat. Submitted by: rdivacky Sponsored by: Google Summer of Code 2007 Tested by: pho
* The kernel version of Linux statfs64 is actually supposed to takedwmalone2007-09-181-0/+13
| | | | | | | | | | | | | 3 arguments, but we had forgotten the second argument. Also make the Linux statfs64 struct depend on the architecture because it has an extra 4 bytes padding on amd64 compared to i386. The three argument fix is from David Taylor, the struct statfs64 stuff is my fault. With this patch I can install i386 Linux matlab on an amd64 machine. Submitted by: David Taylor <davidt_at_yadt.co.uk> Approved by: re (kensmith)
* Implement the openat() linux syscalljulian2007-03-291-0/+3
| | | | | Submitted by: Roman Divacky (rdivacky@) MFC after: 2 weeks
* MFP4: 115220, 115222jkim2007-03-021-149/+161
| | | | | - Fix style(9) and reduce diff between amd64 and i386. - Prefix Linuxulator macros with LINUX_ to prevent future collision.
* Partial MFp4 of 114977:netchild2007-02-241-1/+1
| | | | | | Whitespace commit: Fix grammar, spelling and punctuation. Submitted by: "Scot Hetzel" <swhetzel@gmail.com>
* MFP4: 113025, 113146, 113177, 113203, 113500, 113546, 113570jkim2007-02-151-0/+9
| | | | | | | | - PROT_READ, PROT_WRITE, or PROT_EXEC implies PROT_READ and PROT_EXEC. Linux/ia64's i386 emulation layer does this and it complies with Linux header files. This fixes mmap05 LTP test case on amd64. - Do not adjust stack size when failure has occurred. - Synchronize i386 mmap/mprotect with amd64.
* Introduce some more SO_ option equivalents from Linux to FreeBSD.kib2007-02-011-0/+7
| | | | | | | The msg variable in linux_recvmsg() was not initialized. Copy it from userspace. Submitted by: rdivacky
* MFP4: 109655jkim2006-12-201-2/+2
| | | | | | | | - Move linux_nanosleep() from src/sys/amd64/linux32/linux32_machdep.c to src/sys/compat/linux/linux_time.c. - Validate timespec ranges before use as Linux kernel does. - Fix l_timespec structure. - Clean up style(9) nits.
* Backout the linux aio stuff. Several problems where identified and thenetchild2006-10-291-2/+0
| | | | | | | | | | | | | | | dynamic nature (if no native aio code is available, the linux part returns ENOSYS because of missing requisites) should be solved differently than it is. All this will be done in P4. Not included in this commit is a backout of the changes to the native aio code (removing static in some places). Those changes (and some more) will also be needed when the reworked linux aio stuff will reenter the tree. Requested by: rwatson Discussed with: rwatson
* MFP4 (with some minor changes):netchild2006-10-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement the linux_io_* syscalls (AIO). They are only enabled if the native AIO code is available (either compiled in to the kernel or as a module) at the time the functions are used. If the AIO stuff is not available there will be a ENOSYS. From the submitter: ---snip--- DESIGN NOTES: 1. Linux permits a process to own multiple AIO queues (distinguished by "context"), but FreeBSD creates only one single AIO queue per process. My code maintains a request queue (STAILQ of queue(3)) per "context", and throws all AIO requests of all contexts owned by a process into the single FreeBSD per-process AIO queue. When the process calls io_destroy(2), io_getevents(2), io_submit(2) and io_cancel(2), my code can pick out requests owned by the specified context from the single FreeBSD per-process AIO queue according to the per-context request queues maintained by my code. 2. The request queue maintained by my code stores contrast information between Linux IO control blocks (struct linux_iocb) and FreeBSD IO control blocks (struct aiocb). FreeBSD IO control block actually exists in userland memory space, required by FreeBSD native aio_XXXXXX(2). 3. It is quite troubling that the function io_getevents() of libaio-0.3.105 needs to use Linux-specific "struct aio_ring", which is a partial mirror of context in user space. I would rather take the address of context in kernel as the context ID, but the io_getevents() of libaio forces me to take the address of the "ring" in user space as the context ID. To my surprise, one comment line in the file "io_getevents.c" of libaio-0.3.105 reads: Ben will hate me for this REFERENCE: 1. Linux kernel source code: http://www.kernel.org/pub/linux/kernel/v2.6/ (include/linux/aio_abi.h, fs/aio.c) 2. Linux manual pages: http://www.kernel.org/pub/linux/docs/manpages/ (io_setup(2), io_destroy(2), io_getevents(2), io_submit(2), io_cancel(2)) 3. Linux Scalability Effort: http://lse.sourceforge.net/io/aio.html The design notes: http://lse.sourceforge.net/io/aionotes.txt 4. The package libaio, both source and binary: http://rpmfind.net/linux/rpm2html/search.php?query=libaio Simple transparent interface to Linux AIO system calls. 5. Libaio-oracle: http://oss.oracle.com/projects/libaio-oracle/ POSIX AIO implementation based on Linux AIO system calls (depending on libaio). ---snip--- Submitted by: Li, Xiao <intron@intron.ac>
* MFP4 (106538 + 106541):netchild2006-10-151-0/+1
| | | | | | Implement CLONE_VFORK. This fixes the clone05 LTP test. Submitted by: rdivacky
* Get rid of some nested includes.netchild2006-08-191-4/+0
| | | | | | Sponsored by: Google SoC 2006 Submitted by: rdivacky Noticed by: jhb
* Style fixes to comments.netchild2006-08-161-1/+2
| | | | | | Sponsored by: Google SoC 2006 Submitted by: rdivacky Noticed by: jhb, ssouhlal
* Add the linux 2.6.x stuff (not used by default!):netchild2006-08-151-0/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - TLS - complete - pid/tid mangling - complete - thread area - complete - futexes - complete with issues - clone() extension - complete with some possible minor issues - mq*/timer*/clock* stuff - complete but untested and the mq* stuff is disabled when not build as part of the kernel with native FreeBSD mq* support (module support for this will come later) Tested with: - linux-firefox - works, tested - linux-opera - works, tested - linux-realplay - doesnt work, issue with futexes - linux-skype - doesnt work, issue with futexes - linux-rt2-demo - works, tested - linux-acroread - doesnt work, unknown reason (coredump) and sometimes issue with futexes - various unix utilities in linux-base-gentoo3 and linux-base-fc4: everything tried worked On amd64 not everything is supported like on i386, the catchup is planned for later when the remaining bugs in the new functions are fixed. To test this new stuff, you have to run sysctl compat.linux.osrelease=2.6.16 to switch back use sysctl compat.linux.osrelease=2.4.2 Don't switch while running a linux program, strange things may or may not happen. Sponsored by: Google SoC 2006 Submitted by: rdivacky Some suggestions/help by: jhb, kib, manu@NetBSD.org, netchild
* regen after COMPAT_43 removalnetchild2006-03-181-0/+18
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* Add support for O_NOFOLLOW and O_DIRECT to Linux fcntl() F_GETFL/F_SETFL.mdodd2005-04-131-0/+5
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* Add a new type, l_uintptr_t, which is an unsigned integer type with thetjr2004-08-161-0/+4
| | | | | same width as a pointer under Linux. Add two new macros, PTRIN and PTROUT, which convert between l_uintptr_t and native pointers.
* Correctly map SIGSYS signal to/from Linux.kan2003-02-241-1/+1
| | | | Submitted by: "Georg-W. Koltermann" <g.w.k@web.de>
* Add IPv6 support for Linuxlator.ume2003-02-031-0/+1
| | | | | Reviewed by: dwmalone MFC after: 10 days
* Enable emulation of the F_GETLK64, F_SETLK64, and F_SETLKW64robert2002-07-091-0/+4
| | | | lock commands arguments to linux_fcntl64().
* Spell "separate" correctly.eric2002-04-051-1/+1
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* In FreeBSD's ifreq, ifr_ifru.ifru_flags is an array of two chars, while Linuxdes2001-10-151-1/+1
| | | | | defines it as a short. Change that to an array of one short so that FreeBSD's ifr_flags macro will work (it evaluates to ifr_ifru.ifru_flags[0]).
* Implement LINUX_[SEM|IPC]_[STAT|INFO]mr2001-09-151-0/+2
| | | | | | | to make /compat/linux/usr/bin/ipcs -s happy. PR: kern/29698 (part) Reviewed by: audit
* KSE Milestone 2julian2001-09-121-4/+4
| | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
* Round of cleanups and enhancements. These include (in random order):marcel2001-09-081-133/+248
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | o Introduce private types for use in linux syscalls for two reasons: 1. establish type independence for ease in porting and, 2. provide a visual queue as to which syscalls have proper prototypes to further cleanup the i386/alpha split. Linuxulator types are prefixed by 'l_'. void and char have not been "virtualized". o Provide dummy functions for all syscalls and remove dummy functions or implementations of truely obsolete syscalls. o Sanitize the shm*, sem* and msg* syscalls. o Make a first attempt to implement the linux_sysctl syscall. At this time it only returns one MIB (KERN_VERSION), but most importantly, it tells us when we need to add additional sysctls :-) o Bump the kenel version up to 2.4.2 (this is not the same as the KERN_VERSION MIB, BTW). o Implement new syscalls, of which most are specific to i386. Our syscall table is now up to date with Linux 2.4.2. Some highlights: - Implement the 32-bit uid_t and gid_t bases syscalls. - Implement a couple of 64-bit file size/offset bases syscalls. o Fix or improve numerous syscalls and prototypes. o Reduce style(9) violations while I'm here. Especially indentation inconsistencies within the same file are addressed. Re-indenting did not obfuscate actual changes to the extend that it could not be combined. NOTE: I spend some time testing these changes and found that if there were regressions, they were not caused by these changes AFAICT. It was observed that installing a RH 7.1 runtime environment did make matters worse. Hangs and/or reboots have been observed with and without these changes, so when it failed to make life better in cases it doesn't look like it made it worse.
* With this commit, I hereby pronounce gensetdefs past its use-by date.peter2001-06-131-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the a.out emulation of 'struct linker_set' with something a little more flexible. <sys/linker_set.h> now provides macros for accessing elements and completely hides the implementation. The linker_set.h macros have been on the back burner in various forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()), John Polstra (ELF clue) and myself (cleaned up API and the conversion of the rest of the kernel to use it). The macros declare a strongly typed set. They return elements with the type that you declare the set with, rather than a generic void *. For ELF, we use the magic ld symbols (__start_<setname> and __stop_<setname>). Thanks to Richard Henderson <rth@redhat.com> for the trick about how to force ld to provide them for kld's. For a.out, we use the old linker_set struct. NOTE: the item lists are no longer null terminated. This is why the code impact is high in certain areas. The runtime linker has a new method to find the linker set boundaries depending on which backend format is in use. linker sets are still module/kld unfriendly and should never be used for anything that may be modular one day. Reviewed by: eivind
* Allow debugging output to be controlled on a per-syscall granularity.jlemon2001-02-161-0/+8
| | | | | | Also clean up debugging output in a slightly more uniform fashion. The default behavior remains the same (all debugging output is turned on)
* Add mount syscall to linux emulation. Also improve emulation of reboot.jlemon2001-02-161-0/+9
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* Don't use p->p_sigstk.ss_flags to keep state of whether themarcel2000-11-301-1/+0
| | | | | | | | | | | | | | | process is on the alternate stack or not. For compatibility with sigstack(2) state is being updated if such is needed. We now determine whether the process is on the alternate stack by looking at its stack pointer. This allows a process to siglongjmp from a signal handler on the alternate stack to the place of the sigsetjmp on the normal stack. When maintaining state, this would have invalidated the state information and causing a subsequent signal to be delivered on the normal stack instead of the alternate stack. PR: 22286
* o Change the argument of linux_sigreturn to be a pointer to amarcel2000-11-231-10/+9
| | | | | | | | | | struct sigframe. We need more than only the signal context. o Properly convert the signal mask when setting up the signal frame in linux_sendsig and properly convert it back in linux_sigreturn. Do some cleanups and improve style while here.
* remove redundant declaration of bsd_to_linux_sigset()gallatin2000-11-161-1/+0
| | | | reviewed by: marcel
* Make linux_sendsig and linux_sigreturn use all 64 bits of agallatin2000-11-131-2/+42
| | | | | | | | | | | | | | | | | | linux_sigset_t by updating the linux_sigframe struct so as to include linux's "extramask" field. This field contains the upper 32-bits of the sigset. extramask sits behind a linux_fpstate struct, which I've defined primarily for padding purposes. While we're here, define LINUX_NSIG in terms of LINUX_NBPW (32) and LINUX_NSIG_WORDS (2). This fixes problems where threaded apps would accumulate a large number of zombies. This was happening because the exit signal resides in the upper 32-bits of the sigset and was never getting unmasked by the manager thread after the first child exited. PR: misc/18530 (may be related, originator not yet contacted) Reviewed by: marcel
* Revert auto-generation. The Alpha port is broken.marcel2000-11-101-1/+1
| | | | Syncing with it is wrong.
* Sync with Alpha:marcel2000-11-091-1/+1
| | | | | Do not use sysent.c, proto.h and syscall.h in source tree; use auto-generated versions.
* A start at an implemention of linux_rt_sendsig & linux_rt_sigreturngallatin2000-10-171-0/+80
| | | | | | | | | | | | | | and associated user-level signal trampoline glue. Without this patch, an SA_SIGINFO style handler can be installed by a linux app, but if the handler accesses its sip argument, it will get a garbage pointer and likely segfault. We currently supply a valid pointer, but its contents are mainly garbage. Filling this in properly is future work. This is the second of 3 commits that will get IBM's JDK 1.3 working with FreeBSD ...
* This is the first of 3 commits that will get IBM's JDK 1.3 workinggallatin2000-10-131-0/+8
| | | | | | | | | | | | | | | | | | | | | | | with FreeBSD (not including the MINSIGSTKSZ issue, which belongs to Marcel). Due to time constraints, I'm going to space them out over a few days. This fixes two problems with linux_sigaltstack() o ss == 0 is perfectly valid use, so do not fail in this case. o Fix flag handling: - Our SS_DISABLE is 4, linux's is 2, so we need conversion routines. These conversion routines will be needed by linux_rt_sendsig() and linux_rt_sigreturn (forthcoming), so they are not static. - Linux's flag 0 historically meant SS_ONSTACK according to a comment in their linux/kernel/signal.c file. Among other things, this fixes a warning from Sun's JDK 1.3: "Java HotSpot(TM) Client VM warning: cannot uninstall alt signal stack" Reviewed by: marcel Tested by: sto@stat.duke.edu, many others on freebsd-java@
* When sigaltstack is called with a stack size that's not smallermarcel2000-09-061-0/+3
| | | | | | | than LINUX_MINSIGSTKSZ but smaller than MINSIGSTKSZ, cheat and pass MINSIGSTKSZ to the kernel. This is a workaround. Submitted through: nate
* Fix #! script exec under linux emulation. If a script is exec'd from adillon2000-04-261-0/+2
| | | | | | | | | | program running under linux emulation, the script binary is checked for in /compat/linux first. Without this patch the wrong script binary (i.e. the FreeBSD binary) will be run instead of the linux binary. For example, #!/bin/sh, thus breaking out of linux compatibility mode. This solves a number of problems people have had installing linux software on FreeBSD boxes.
* Implement pluggable ioctl handlers.marcel1999-12-041-649/+301
| | | | | | | | | | | | | | | | | | | | | | | | Other modules can register and unregister ioctl handlers to extend the ioctls known by the Linuxulator. A recent application is the vmware port. The Linuxulator itself uses the new interface to register its handlers as well. Handlers for the following types of ioctls have been defined: cdrom console (=keyboard and VT handling) socket sound termio All ioctl related defines and declarations have been moved to a new file (linux_ioctl.h), except for the pluggable ioctl handler interface definition. While there, cleanup linux.h some more. linux.h and linux_ioctl.[ch] have been made to conform to style(9) as much as possible. Inspired and reviewed by: Vladimir N. Silyaev
* Implement linux_sigaltstack.marcel1999-11-301-0/+8
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* add linuxulator wrapper for SNDCTL_DSP_GETODELAYalfred1999-11-291-0/+1
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* sigset_t change (part 4 of 5)marcel1999-09-291-39/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ----------------------------- The compatibility code and/or emulators have been updated: iBCS2 now mostly uses the older syscalls. SVR4 now properly handles all signals. This has been achieved by using the new sigset_t throughout the emulator. The Linuxulator has been severely updated. Internally the new Linux sigset_t is made the default. These are then mapped to and from the new FreeBSD sigset_t. Also, rt_sigsuspend has been implemented in the Linuxulator. Implementing this syscall basicly caused all this sigset_t changing in the first place and the syscall has been used throughout the change as a means for testing. It basicly is too much work to undo the implementation so that it can later be added again. A special note on the use of sv_sigtbl and sv_sigsize in struct sysentvec: Every signal larger than sv_sigsize is not translated and is passed on to the signal handler unmodified. Signals in the range 1 upto and including sv_sigsize are translated. The rationale is that only the system defined signals need to be translated. The emulators also have been updated so that the translation tables are only indexed for valid (system defined) signals. This change also fixes the translation bug already in the SVR4 emulator.
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