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* linux-user: Fix mmap_lock orderingRiku Voipio2009-12-191-2/+2
| | | | | | | | | mmap_lock() can be called while tb_lock() is being held. To avoid deadlock when one thread is holding mmap_lock and another tb_lock, _always_ lock first tb_lock(). Signed-off-by: Riku Voipio <riku.voipio@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Fix ARM userspace strex implementation.Paul Brook2009-12-111-0/+1
| | | | Signed-off-by: Paul Brook <paul@codesourcery.com>
* Add missing break.Paul Brook2009-11-241-0/+1
| | | | Signed-off-by: Paul Brook <paul@codesourcery.com>
* ARM atomic ops rewritePaul Brook2009-11-221-0/+80
| | | | | | Implement ARMv6 atomic ops (ldrex/strex) using the same trick as PPC. Signed-off-by: Paul Brook <paul@codesourcery.com>
* target-mips: rename CP0_LLAddr into lladdrAurelien Jarno2009-11-221-2/+2
| | | | | | | | The variable CP0_LLAddr represent the full lladdr, not the actual register value, which is only part of this value and depends on the CPU. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* user: move CPU reset call to main.c for x86/PPC/SparcBlue Swirl2009-11-071-0/+4
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Revert "Get rid of _t suffix"Anthony Liguori2009-10-011-12/+12
| | | | | | | | | | | | In the very least, a change like this requires discussion on the list. The naming convention is goofy and it causes a massive merge problem. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Get rid of _t suffixmalc2009-10-011-12/+12
| | | | | | | Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
* Revert "Fix Sparc/Linux host breakage by ↵Blue Swirl2009-09-131-21/+0
| | | | | | | | df70204db53e3611af986f434e74a882bce190ca" This reverts commit 91b40c5be84a478e98c0416325844a7f66d0efae. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Fix Sparc/Linux host breakage by df70204db53e3611af986f434e74a882bce190caBlue Swirl2009-09-131-0/+21
| | | | | | | | | | | While i386, x86_64 and Sparc64/OpenBSD still worked after df70204db53e3611af986f434e74a882bce190ca, Sparc32 and Sparc64 Linux hosts broke. Partially revert the commit: make the restored code conditional to !CONFIG_USER_PIE. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Fix text relocations in linux-user targetsKirill A. Shutemov2009-09-121-26/+0
| | | | | | | | | | | | | There is a link hack in linux-user which produces an executable that looks like PIE, but always has text relocations since all object files isn't position-independent (compiled without -fpic/-fpie). Dynamic loader has to do more work to load a binary with text relocations. The best way to keep this functionality is to build a true PIE without text relocations. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Replace local ADDRX/PADDRX macros with TARGET_FMT_lx/plxBlue Swirl2009-08-161-3/+3
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Sparc64: replace tsptr with helper routineIgor Kovalenko2009-08-041-1/+1
| | | | | | | | | | | | | | | | | | | tl and tsptr of members sparc64 cpu state must be changed simultaneously to keep trap state window in sync with current trap level. Currently translation of store to tl does not change tsptr, which leads to corrupt trap state on corresponding trap level. This patch removes tsptr from sparc64 cpu state and replaces all uses with call to helper routine. Changes v0->v1: - reimplemented helper routine with tcg generator - on cpu reset trap type and pstate are populated with power-on reset values, including tl=maxtl Signed-off-by: igor.v.kovalenko@gmail.com Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* linux-user: handle POWERPC_EXCP_STCXNathan Froyd2009-08-031-0/+68
| | | | | | | | We handle conditional stores as an exception so we can ensure that no other thread is changing memory out from underneath us. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: malc <av1474@comtv.ru>
* rename USE_NPTL to CONFIG_USE_NPTLJuan Quintela2009-07-271-3/+3
| | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Userspace guest address offsettingPaul Brook2009-07-171-0/+45
| | | | | | | | | | Re-implement GUEST_BASE support. Offset guest ddress space by default if the guest binary contains regions below the host mmap_min_addr. Implement support for i386, x86-64 and arm hosts. Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Paul Brook <paul@codesourcery.com>
* Update to a hopefully more future proof FSF addressBlue Swirl2009-07-161-3/+1
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Avoid SIGSEGV when dumping cpu state without enabled loggingmalc2009-07-151-1/+2
| | | | Signed-off-by: malc <av1474@comtv.ru>
* consolidate user cpu_{in, out}[bwl] into ioport-user.cIsaku Yamahata2009-07-091-33/+0
| | | | | Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Merge commit 'linux-user/linux-user-for-upstream' into tmp-stagingAnthony Liguori2009-07-091-3/+5
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| * linux-user: increment MAX_ARG_PAGESArnaud Patard2009-07-081-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's a error When doing something like that : find / -type f -print0 | xargs -0 echo [ done in a arm chroot with qemu-arm and linux binfmt stuff or with find / -type f -print0 | qemu-arm -L <path> <path>/usr/bin/xargs -0 echo ] Doing this outsite qemu is fine. The problem was the huge number of parameters. Increasing MAX_ARG_PAGES is fixing that. While I was at it, I've modified linux-user/main.c to report error code of loader_exec. It helps to debug/know what's wrong. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* | MIPS atomic instructionsPaul Brook2009-07-091-0/+60
| | | | | | | | | | | | Implement MIPS ll/sc instructions using atomic compare+exchange. Signed-off-by: Paul Brook <paul@codesourcery.com>
* | Fix MIPS sys_clonePaul Brook2009-07-091-1/+1
|/ | | | | | The clone syscall takes 6 args. Signed-off-by: Paul Brook <paul@codesourcery.com>
* linux-user: implemented ELF coredump support for ARM targetMika Westerberg2009-06-161-7/+35
| | | | | | | | | | | | When target process is killed with signal (such signal that should dump core) a coredump file is created. This file is similar than coredump generated by Linux (there are few exceptions though). Riku Voipio: added support for rlimit Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
* microblaze: linux-user support.Edgar E. Iglesias2009-05-261-0/+96
| | | | Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* linux-user: ppc signal handlingNathan Froyd2009-05-161-0/+5
| | | | | | | | | Implement setup_{,rt_}frame and do_{,rt_}sigreturn for PPC 32-bit. Use the same TARGET_QEMU_ESIGRETURN hack as for MIPS to avoid clobbering register state on a sigreturn. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: malc <av1474@comtv.ru>
* Replace gcc variadic macro extension with C99 versionBlue Swirl2009-05-131-6/+6
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* MIPS signal handling fixes.pbrook2009-04-211-0/+5
| | | | | | | | | | | | | | | | | | Also fixes a register corruption bug in do_sigreturn. When "returning" from sigreturn we are actually restoring the virtual cpu state from the signal frame. This is actually surprisingly hard to observe in practice. Typically an thread be blocked in a FUTEX_WAIT call when the signal arrives, so the effect is a spurious syscall success and the introduction of a subtle race condition. On x86/arm a syscall modifies a single word sized register, so do_sigreturn can just return that value. On MIPS a syscall clobbers multiple registers, so we need additional smarts. My solution is to invent a magic errno value that means "don't touch CPU state". git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7194 c046a42c-6fe2-441c-8c8c-71466251a162
* MIPS: Raise SIGSEGV, not SIGILL when an access faults.pbrook2009-04-211-0/+7
| | | | | | | Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7193 c046a42c-6fe2-441c-8c8c-71466251a162
* linux-user: add support for passing contents of argv0aurel322009-04-151-1/+37
| | | | | | | | | | | | | Added switch -0 (zero) which can be used to pass argv[0] to target process. The main use is for a binfmt_misc wrapper when the "P - preserve-argv[0]" setting is used. From: Mika Westerberg Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7115 c046a42c-6fe2-441c-8c8c-71466251a162
* Enable generic accepts-anything cpu by default for usermode emulation.pbrook2009-04-091-1/+1
| | | | | | | Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7051 c046a42c-6fe2-441c-8c8c-71466251a162
* Add --with-pkgversion.pbrook2009-04-071-1/+1
| | | | | | | | | | Allows distributors to identify their builds without needing to hack the sources. Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7036 c046a42c-6fe2-441c-8c8c-71466251a162
* Add new command line option -singlestep for tcg single stepping.aurel322009-04-051-0/+5
| | | | | | | | | | | | | | This replaces a compile time option for some targets and adds this feature to targets which did not have a compile time option. Add monitor command to enable or disable single step mode. Modify monitor command "info status" to display single step mode. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7004 c046a42c-6fe2-441c-8c8c-71466251a162
* Use a dedicated function to request exit from execution loopaurel322009-03-071-1/+1
| | | | | | Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
* The _exit syscall is used for both thread termination in NPTL applications,pbrook2009-03-071-0/+20
| | | | | | | | | | | | | and process termination in legacy applications. Try to guess which we want based on the presence of multiple threads. Also implement locking when modifying the CPU list. Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6735 c046a42c-6fe2-441c-8c8c-71466251a162
* Flush stdout after printing usage()blueswir12009-02-281-2/+2
| | | | | | | | | | | Fixes qemu-arm|grep cpu - with _exit() getting output from qemu --help is a bit random. Since no atexit() handlers are registered for user mode emulation, just use exit() instead. Signed-off-by: Riku Voipio <riku.voipio@iki.fi> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6657 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix crash caused by missing command line argumentsaurel322009-02-091-1/+7
| | | | | | | Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6580 c046a42c-6fe2-441c-8c8c-71466251a162
* linux-user: identify running binary in /proc/self/exeaurel322009-01-301-0/+3
| | | | | | | | | | | | Some applications like to test /proc/self/exe to find out who they are. Fake the result of readlink() for them. Use realpath() to return full path to binary (which the links /proc/self/exe are) Signed-off-by: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6485 c046a42c-6fe2-441c-8c8c-71466251a162
* linux-user: Add generic env variable handlingaurel322009-01-301-16/+34
| | | | | | | | | | | Adds support for qemu to modify target process environment variables using -E and -U commandline switches. This replaces eventually the -drop-ld-preload flag. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Riku Voipio <riku.voipio@iki.fi> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6484 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix user emulator breakage, based on patch by Riku Voipioblueswir12009-01-201-13/+15
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6371 c046a42c-6fe2-441c-8c8c-71466251a162
* Convert references to logfile/loglevel to use qemu_log*() macrosaliguori2009-01-151-19/+15
| | | | | | | | | | | | This is a large patch that changes all occurrences of logfile/loglevel global variables to use the new qemu_log*() macros. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6338 c046a42c-6fe2-441c-8c8c-71466251a162
* Get rid of user_mode_onlyaurel322009-01-141-1/+0
| | | | | | Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6305 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix more FSF addressesblueswir12009-01-051-1/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6192 c046a42c-6fe2-441c-8c8c-71466251a162
* User-mode GDB stub improvements - handle forkaurel322008-12-181-0/+4
| | | | | | | | | | Close gdbserver in child processes, so that only one stub tries to talk to GDB at a time. Updated from an earlier patch by Paul Brook. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6095 c046a42c-6fe2-441c-8c8c-71466251a162
* Introduce and use cache-utils.[ch]malc2008-12-101-1/+4
| | | | | | | | | | | | Thanks to Segher Boessenkool and Holis Blanchard. AIX and Darwin cache inquiry: http://gcc.gnu.org/ml/gcc-patches/2007-08/msg00388.html Auxiliary vectors: http://manugarg.googlepages.com/aboutelfauxiliaryvectors git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5973 c046a42c-6fe2-441c-8c8c-71466251a162
* x86: Debug register emulation (Jan Kiszka)aliguori2008-11-181-2/+2
| | | | | | | | | | | | | | | | Built on top of previously enhanced breakpoint/watchpoint support, this patch adds full debug register emulation for the x86 architecture. Many corner cases were considered, and the result was successfully tested inside a Linux guest with gdb, but I won't be surprised if one or two scenarios still behave differently in reality. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5747 c046a42c-6fe2-441c-8c8c-71466251a162
* ppc-linux-user: handle EXCP_DEBUGaurel322008-11-141-14/+13
| | | | | | | | | | | Replace POWERPC_EXCP_DEBUG by EXCP_DEBUG as the former can not happen in user mode emulation, while the later can happen and should be handled. Noticed by Andrew Stubbs. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5721 c046a42c-6fe2-441c-8c8c-71466251a162
* use target_mmap() to allocate idt, gdt and ldt (Kirill A. Shutemov).balrog2008-11-101-8/+15
| | | | | | | | | | env->*dt.base should fit target address space, so we should use target_mmap to allocate them. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5666 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix undeclared symbol warnings from sparseblueswir12008-10-261-2/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5539 c046a42c-6fe2-441c-8c8c-71466251a162
* CRIS: linux-user ERP compensation not needed anymore.edgar_igl2008-10-081-1/+0
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5449 c046a42c-6fe2-441c-8c8c-71466251a162