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* Changes to MI Linux emulation code necessary to run 32-bit Linux binariesTim J. Robbins2004-08-161-34/+56
| | | | | | | | | | | | | | | | | | on AMD64, and the general case where the emulated platform has different size pointers than we use natively: - declare certain structure members as l_uintptr_t and use the new PTRIN and PTROUT macros to convert to and from native pointers. - declare some structures __packed on amd64 when the layout would differ from that used on i386. - include <machine/../linux32/linux.h> instead of <machine/../linux/linux.h> if compiling with COMPAT_LINUX32. This will need to be revisited before 32-bit and 64-bit Linux emulation support can coexist in the same kernel. - other small scattered changes. This should be a no-op on i386 and Alpha. Notes: svn path=/head/; revision=133816
* Back out the following revisions:Max Khon2003-11-051-6/+6
| | | | | | | | | | | | | | | | | | | | | 1.36 +73 -60 src/sys/compat/linux/linux_ipc.c 1.83 +102 -48 src/sys/kern/sysv_shm.c 1.8 +4 -0 src/sys/sys/syscallsubr.h That change was intended to support vmware3, but wantrem parameter is useless because vmware3 uses SYSV shared memory to talk with X server and X server is native application. The patch worked because check for wantrem was not valid (wantrem and SHMSEG_REMOVED was never checked for SHMSEG_ALLOCATED segments). Add kern.ipc.shm_allow_removed (integer, rw) sysctl (default 0) which when set to 1 allows to return removed segments in shm_find_segment_by_shmid() and shm_find_segment_by_shmidx(). MFC after: 1 week Notes: svn path=/head/; revision=122088
* Use __FBSDID().David E. O'Brien2003-06-101-2/+3
| | | | Notes: svn path=/head/; revision=116173
* Change the semantics of sysv shm emulation to take a additionalMartin Blapp2003-05-051-60/+73
| | | | | | | | | | | | | | | | | | | | argument to the functions shm{at,ctl}1 and shm_find_segment_by_shmid{x}. The BSD semantics didn't allow the usage of shared segment after being marked for removal through IPC_RMID. The patch involves the following functions: - shmat - shmctl - shm_find_segment_by_shmid - shm_find_segment_by_shmidx - linux_shmat - linux_shmctl Submitted by: Orlando Bassotto <orlando.bassotto@ieo-research.it> Reviewed by: marcel Notes: svn path=/head/; revision=114724
* Deprecate machine/limits.h in favor of new sys/limits.h.Alexander Kabaev2003-04-291-2/+1
| | | | | | | | | | Change all in-tree consumers to include <sys/limits.h> Discussed on: standards@ Partially submitted by: Craig Rodrigues <rodrigc@attbi.com> Notes: svn path=/head/; revision=114216
* Clean up whitespace and remove register keyword.Dag-Erling Smørgrav2003-03-031-16/+16
| | | | Notes: svn path=/head/; revision=111798
* More caddr_t removal, in conjunction with copy{in,out}(9) this time.Dag-Erling Smørgrav2003-03-031-3/+3
| | | | | | | Also clean up some egregious casts and incorrect use of sizeof. Notes: svn path=/head/; revision=111797
* Add function linux_msg() for regulating output from the linux emulationAlfred Perlstein2003-01-021-3/+2
| | | | | | | | | | | | | | code, make the emulator use it. Rename unsupported_msg() to unimplemented_syscall(). Rename some arguments for clarity Fixup grammar. Requested by: bde Notes: svn path=/head/; revision=108541
* - Add support for IPC_64 extensions into shmctl(2), semctl(2) and msgctl(2);Maxim Sobolev2002-10-111-23/+285
| | | | | | | | | | | | | | | | - add wrappers for mmap2(2) and ftruncate64(2) system calls; - don't spam console with printf's when VFAT_READDIR_BOTH ioctl(2) is invoked; - add support for SOUND_MIXER_READ_STEREODEVS ioctl(2); - make msgctl(IPC_STAT) and IPC_SET actually working by converting from BSD msqid_ds to Linux and vice versa; - properly return EINVAL if semget(2) is called with nsems being negative. Reviewed by: marcel Approved by: marcel Tested with: LSB runtime test Notes: svn path=/head/; revision=104893
* Fix typo in the BSD copyright: s/withough/without/Jens Schweikhardt2002-06-021-1/+1
| | | | | | | | Spotted and suggested by: des MFC after: 3 weeks Notes: svn path=/head/; revision=97748
* In msgrcv(), set msgtyp correctly. Hardwiring 0 as the message typeMarcel Moolenaar2002-05-181-1/+1
| | | | | | | | | | | | | yields incorrect behaviour. The hardwiring was present in the very first commit that implemented msgrcv() (revision 1.4) and hasn't been changed since. The native implementation was complete at that time, so there doesn't seem to be a reason for the hardwiring from a technical point of view. Submitted by: Reinier Bezuidenhout <rbezuide@yahoo.com> Notes: svn path=/head/; revision=96840
* Introduce [IPC|SHM]_[INFO|STAT] to shmctl to makeMichael Reifenberger2001-10-281-3/+52
| | | | | | | `/compat/linux/usr/bin/ipcs -m` happy. Notes: svn path=/head/; revision=85623
* Swap the src and dst arguments of the bcopy added in theMarcel Moolenaar2001-09-281-1/+1
| | | | | | | previous commit. It ain't memcpy... *cough* Notes: svn path=/head/; revision=84067
* The arg parameter is passed by value in Linux, but not in FreeBSD.Marcel Moolenaar2001-09-261-5/+6
| | | | | | | | | | | | We still have to account for a copyin. Make sure the copyin will succeed by passing the FreeBSD syscall a pointer to userspace, albeit one that's automagically mapped into kernel space. Reported by: mr, Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org> Tested by: Mitsuru IWASAKI <iwasaki@jp.FreeBSD.org> Notes: svn path=/head/; revision=83955
* Implement LINUX_[SEM|IPC]_[STAT|INFO]Michael Reifenberger2001-09-151-2/+58
| | | | | | | | | | to make /compat/linux/usr/bin/ipcs -s happy. PR: kern/29698 (part) Reviewed by: audit Notes: svn path=/head/; revision=83501
* KSE Milestone 2Julian Elischer2001-09-121-28/+28
| | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=83366
* Round of cleanups and enhancements. These include (in random order):Marcel Moolenaar2001-09-081-126/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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. Notes: svn path=/head/; revision=83221
* Don't auto-generate the syscalls.Marcel Moolenaar2000-12-031-4/+0
| | | | Notes: svn path=/head/; revision=69539
* Revert auto-generation. The Alpha port is broken.Marcel Moolenaar2000-11-101-0/+4
| | | | | | | Syncing with it is wrong. Notes: svn path=/head/; revision=68583
* Sync with Alpha:Marcel Moolenaar2000-11-091-4/+0
| | | | | | | | Do not use sysent.c, proto.h and syscall.h in source tree; use auto-generated versions. Notes: svn path=/head/; revision=68519
* Support for the linux ipc syscalls on the alpha, where each one hasAndrew Gallatin2000-11-011-13/+15
| | | | | | | | its own syscall rather than going through a demux function like linux_ipc() on i386 Notes: svn path=/head/; revision=68214
* The MI/MD split wasn't perfect and the MI files need hacks for theDavid E. O'Brien2000-11-011-0/+4
| | | | | | | | | AlphaLinux compat bits. This will be better cleaned up soon. Agreed to what ever was necessary by: marcel Notes: svn path=/head/; revision=68201
* Update include directives.Marcel Moolenaar2000-08-221-58/+15
| | | | | | | | | | Make the sem*, msg* and shm* function non-static as they are called from MD code. Move linux_ipc to MD code. Notes: svn path=/head/; revision=64906
* Linux doesn't complain if you remove a msg queue that doesn't existMarcel Moolenaar1999-09-231-1/+3
| | | | | | | (given the proper permissions). Notes: svn path=/head/; revision=51602
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* ".. x11amp appears to be calling shmctl(id, IPC_RMID, 0) and the emulationJordan K. Hubbard1998-06-021-9/+13
| | | | | | | | | | | layer does not like the null shmid_ds buffer pointer. The emulation layer returned an error without ever calling FreeBSD's shmctl, so the segments were not being deleted when the reference count went to zero." Submitted by: Kevin Street <street@iname.com> Notes: svn path=/head/; revision=36587
* Move the "retval" (3rd) parameter from all syscall functions and putPoul-Henning Kamp1997-11-061-51/+51
| | | | | | | | | | | | | | | it in struct proc instead. This fixes a boatload of compiler warning, and removes a lot of cruft from the sources. I have not removed the /*ARGSUSED*/, they will require some looking at. libkvm, ps and other userland struct proc frobbing programs will need recompiled. Notes: svn path=/head/; revision=30994
* Implement linux_semop, linux_semget and linux_semctl.KATO Takenori1997-10-281-4/+136
| | | | | | | PR: 4355 Notes: svn path=/head/; revision=30804
* Ops the arguments to copyin was in the wrong order..Søren Schmidt1997-08-101-2/+2
| | | | | | | This has survived since the first version, sigh. Notes: svn path=/head/; revision=28039
* Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are notPeter Wemm1997-02-221-1/+1
| | | | | | | ready for it yet. Notes: svn path=/head/; revision=22975
* Make the long-awaited change from $Id$ to $FreeBSD$Jordan K. Hubbard1997-01-141-1/+1
| | | | | | | | | | | This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise. Notes: svn path=/head/; revision=21673
* Clean up -Wunused warnings.Gary Palmer1996-06-121-2/+1
| | | | | | | Reviewed by: bde Notes: svn path=/head/; revision=16322
* Mega-commit for Linux emulator update.. This has been stress tested underPeter Wemm1996-03-021-24/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | netscape-2.0 for Linux running all the Java stuff. The scrollbars are now working, at least on my machine. (whew! :-) I'm uncomfortable with the size of this commit, but it's too inter-dependant to easily seperate out. The main changes: COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386 machine dependent section into the linux emulator itself. The int 0x80 syscall code was almost identical to the lcall 7,0 code and a minor tweak allows them to both be used with the same C code. All kernels can now just modload the lkm and it'll DTRT without having to rebuild the kernel first. Like IBCS2, you can statically compile it in with "options LINUX". A pile of new syscalls implemented, including getdents(), llseek(), readv(), writev(), msync(), personality(). The Linux-ELF libraries want to use some of these. linux_select() now obeys Linux semantics, ie: returns the time remaining of the timeout value rather than leaving it the original value. Quite a few bugs removed, including incorrect arguments being used in syscalls.. eg: mixups between passing the sigset as an int, vs passing it as a pointer and doing a copyin(), missing return values, unhandled cases, SIOC* ioctls, etc. The build for the code has changed. i386/conf/files now knows how to build linux_genassym and generate linux_assym.h on the fly. Supporting changes elsewhere in the kernel: The user-mode signal trampoline has moved from the U area to immediately below the top of the stack (below PS_STRINGS). This allows the different binary emulations to have their own signal trampoline code (which gets rid of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so that the emulator can provide the exact "struct sigcontext *" argument to the program's signal handlers. The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which have the same values as the re-used SA_DISABLE and SA_ONSTACK which are intended for sigaction only. This enables the support of a SA_RESETHAND flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal semantics where the signal handler is reset when it's triggered. makesyscalls.sh no longer appends the struct sysentvec on the end of the generated init_sysent.c code. It's a lot saner to have it in a seperate file rather than trying to update the structure inside the awk script. :-) At exec time, the dozen bytes or so of signal trampoline code are copied to the top of the user's stack, rather than obtaining the trampoline code the old way by getting a clone of the parent's user area. This allows Linux and native binaries to freely exec each other without getting trampolines mixed up. Notes: svn path=/head/; revision=14331
* reran makesyscallsPeter Wemm1996-01-081-2/+1
| | | | | | | | Always call the SYSV ipc functions, stubs will take their place if necessary. Notes: svn path=/head/; revision=13334
* The Linux emulator depends on SYSV IPC but doesn't actually referenceGarrett Wollman1996-01-051-1/+3
| | | | | | | the options. Notes: svn path=/head/; revision=13264
* My first shot at get sound to work on the emulator.Søren Schmidt1995-12-291-5/+45
| | | | | | | | Inspired by the work Amancio Hasty has done, but implemented somewhat differently. Notes: svn path=/head/; revision=13111
* Update linux_ipc.c to use the now generated prototypes for the shm* callsPeter Wemm1995-12-151-9/+9
| | | | | | | it makes while emulating the linux equivalents. Notes: svn path=/head/; revision=12867
* Completed function declarations and added prototypes.Bruce Evans1995-11-221-6/+4
| | | | | | | | | Removed some unnecessary #includes. Fixed warnings about nested externs. Notes: svn path=/head/; revision=12458
* First incarnation of our Linux emulator or rather compatibility code.Søren Schmidt1995-06-251-0/+308
This first shot only incorporaties so much functionality that DOOM can run (the X version), signal handling is VERY weak, so is many other things. But it meets my milestone number one (you guessed it - running DOOM). Uses /compat/linux as prefix for loading shared libs, so it won't conflict with our own libs. Kernel must be compiled with "options COMPAT_LINUX" for this to work. Notes: svn path=/head/; revision=9313
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