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path: root/sys/i386/linux/linux_signal.c
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* Finish the Linuxulator MD/MI split.Marcel Moolenaar2000-08-221-555/+0
| | | | | | | | | | | | In summary: o This file has been moved to sys/compat/linux, o Any MD syscalls in this file are moved to linux_machdep.c in sys/i386/linux, o Include directives, makefiles and config files have been updated. Notes: svn path=/head/; revision=64931
* Fix LINT breakage.Archie Cobbs1999-12-051-1/+1
| | | | Notes: svn path=/head/; revision=54152
* Implement linux_sigaltstack.Marcel Moolenaar1999-11-301-11/+47
| | | | Notes: svn path=/head/; revision=53954
* sigset_t change (part 4 of 5)Marcel Moolenaar1999-09-291-281/+334
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ----------------------------- 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. Notes: svn path=/head/; revision=51793
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Implementation of linux_rt_sigaction and linux_rt_sigprocmask syscalls. BothMarcel Moolenaar1999-08-141-75/+216
| | | | | | | | | | | | | functions use the new sigset_t and sigaction_t which allows support for more than 32 signals. Only the lower 32 signals are supported for now. linux_rt_sigaction, linux_sigaction and linux_signal use linux_do_sigaction to do the actual work. That way unnecessary redundancy is avoided. The same has been done for linux_rt_sigprocmask and linux_sigprocmask. They call linux_do_sigprocmask to do the actual work. Notes: svn path=/head/; revision=49786
* Rename struct members sa_siginfo. POSIX reserves identifiers startingMartin Cracauer1999-07-061-17/+17
| | | | | | | | | | with sa_ when <signal.h> is included. They would conflict with the upcoming SA_SIGINFO implementation. Reviewed by: BDE Notes: svn path=/head/; revision=48620
* Fix up a few easy 'assignment used as truth value' and 'suggest parensPeter Wemm1999-05-061-8/+15
| | | | | | | | around && within ||' type warnings. I'm pretty sure I have not masked any problems here, I've committed real problem fixes seperately. Notes: svn path=/head/; revision=46571
* Kill(pid, 0) normally returns 0 on both FreeBSD and Redhat after havingSøren Schmidt1998-12-211-2/+2
| | | | | | | | | | | | performed all sorts of sanity checks. The FreeBSD linux emulator returns EINVAL in such a case. Allowing signal 0 to be passed to kill will result in compatible behaviour. PR: 9082 Submitted by: Marcel Moolenaar <marcel@scc.nl> Notes: svn path=/head/; revision=41986
* Fix a couple of out-of-bounds array references in mapping betweenJohn Polstra1998-10-111-4/+9
| | | | | | | | | Linux and FreeBSD signal numbers. Also, check signal numbers passed in from application programs for validity. Without these checks, it is trivial to panic the system from a Linux program. Notes: svn path=/head/; revision=40203
* Oops, the previous fix confused Linux's sigset_t with a pointer type.Bruce Evans1998-08-151-5/+5
| | | | | | | | | It can be integral or a struct in POSIX, so it is difficult to print, but it is actually declared as unsigned long. Assume that it is unsigned integral. Notes: svn path=/head/; revision=38344
* Fixed print format errors.Bruce Evans1998-07-291-7/+9
| | | | Notes: svn path=/head/; revision=37950
* Move the "retval" (3rd) parameter from all syscall functions and putPoul-Henning Kamp1997-11-061-20/+19
| | | | | | | | | | | | | | | 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
* Removed unused #includes.Bruce Evans1997-07-201-3/+1
| | | | Notes: svn path=/head/; revision=27557
* 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
* update linux_times() and linux_utime() emulation,Peter Wemm1996-03-041-3/+6
| | | | | | | | fix sigsuspend() (actually back out my recent change there) and regen the syscall tables.. Notes: svn path=/head/; revision=14381
* Minor touch-up... make two functions static, and add missing $Id$Peter Wemm1996-03-021-3/+3
| | | | Notes: svn path=/head/; revision=14342
* Mega-commit for Linux emulator update.. This has been stress tested underPeter Wemm1996-03-021-80/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Clean up some warnings by using the generated structures in <sys/sysproto.h>Peter Wemm1995-12-151-9/+11
| | | | | | | | for passing to the bsd system calls, rather than inveninting our own equivalent structures. Notes: svn path=/head/; revision=12858
* Completed function declarations and added prototypes.Bruce Evans1995-11-221-3/+3
| | | | | | | | | 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/+259
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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