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* Wrap recv to avoid warningsBlue Swirl2011-07-251-1/+1
| | | | | | | | | | | | | Avoid warnings like these by wrapping recv(): CC slirp/ip_icmp.o /src/qemu/slirp/ip_icmp.c: In function 'icmp_receive': /src/qemu/slirp/ip_icmp.c:418:5: error: passing argument 2 of 'recv' from incompatible pointer type [-Werror] /usr/local/lib/gcc/i686-mingw32msvc/4.6.0/../../../../i686-mingw32msvc/include/winsock2.h:547:32: note: expected 'char *' but argument is of type 'struct icmp *' Remove also casts used to avoid warnings. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* Remove exec-all.h include directivesBlue Swirl2011-06-261-1/+1
| | | | | | Most exec-all.h include directives are now useless, remove them. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* target-mips/gdbstub: remove old CONFIG_SOFTFLOAT #ifndefAurelien Jarno2011-06-031-4/+0
| | | | | | | | target-mips has been switched to softfloat only long ago, but a #ifndef CONFIG_SOFTFLOAT has been forgotten. Remove it. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* s390x: Adjust GDB stubAlexander Graf2011-05-201-2/+6
| | | | | | | | We have successfully lazilized cc computation, so we need to manually trigger its calculation when gdb wants to fetch it. We also changed the variable name, so writing it writes into a different field now. Signed-off-by: Alexander Graf <agraf@suse.de>
* gdbstub: Catch and report more vmstop reasonsJan Kiszka2011-04-031-10/+39
| | | | | | | | | | | | | When the VM goes into stop state while there is a gdb frontend attached, it makes sense to inform gdb about this fact and at least a bit about the stop reason. Basically, all stops are interesting except for the temporary VMSTOP_SAVE/LOADVM. The patch maps the relevant VMSTOP reasons on unique and more or less associatable signals that gdb understands. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* lm32: gdbstub supportMichael Walle2011-03-071-0/+76
| | | | | | | This patch adds lm32 support to the gdbstub. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* Improve vm_stop reason declarationsJan Kiszka2011-02-141-9/+10
| | | | | | | | | | Define and use dedicated constants for vm_stop reasons, they actually have nothing to do with the EXCP_* defines used so far. At this chance, specify more detailed reasons so that VM state change handlers can evaluate them. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* gdbstub: Close connection in gdb_exitFabien Chouteau2011-01-161-0/+6
| | | | | | | | | | | On Windows, this is required to flush the remaining data in the IO stream, otherwise Gdb do not receive the last packet. Version 2: Fix linux-user build error. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
* Use gcc warning flag -Wnested-externsBlue Swirl2010-09-181-1/+0
| | | | | | | | | If the compiler supports the warning flag -Wnested-externs, use it. Avoid the only warning by moving the declaration of xml_builtin to a more proper place. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* remove exec-all.h inclusion from cpu.hPaolo Bonzini2010-07-031-0/+1
| | | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* GDB exit status for semihostingPaul Brook2010-06-161-14/+20
| | | | | | Report exit status to GDB when a semihosted application exits. Signed-off-by: Paul Brook <paul@codesourcery.com>
* sparc: Fix lazy flag calculation on interrupts, refactorBlue Swirl2010-05-091-8/+8
| | | | | | | | | | | | Recalculate Sparc64 CPU flags on interrupts, otherwise some earlier flags could be stored to pstate. Refactor PSR/CCR/CWP handling: concentrate the actual functions to op_helper.c. Thanks to Igor Kovalenko for reporting. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* target-sh4: Fix gdb read/write registertakasi-y@ops.dti.ne.jp2010-02-271-13/+14
| | | | | | | | cpu_gdb_read_register(): Fix n={8...15} case. cpu_gdb_write_register(): Fix n={8...15} case and runaway "case:". Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Fix to 'gdb detach' stubDaniel Gutson2010-02-271-0/+1
| | | | | | | | | | | | With this patch, 'gdb detach' correctly resumes the inferior execution after detaching the debugger. The bug was caused by qemu asking gdb to execute a syscall (isatty) after the detach, and then waiting (forever) for the reply. I fixed this by properly setting gdb_syscall_mode appropriately in the 'detach' packet handling, so subsequent syscalls are solved by qemu rather than gdb. Signed-off-by: Daniel Gutson <dgutson@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* target-alpha: Fix gdb access to fpcr and unique.Richard Henderson2010-02-231-34/+54
| | | | | | | | | | cpu_gdb_read/write_register need to access the fpcr via the cpu_alpha_load/store_fpcr functions. The unique register is number 66 in the gdb remote protocol. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* cris: Add CRISv10 gdbstub support.Edgar E. Iglesias2010-02-201-0/+36
| | | | Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* target-m68k: fix a typo in 'P' packet processingKazu Hirata2010-01-141-1/+1
| | | | | | | | | | | | | | | | | Attached is a patch to fix a typo in 'P' packet processing for M68K. Without this patch, QEMU fails to honor GDB's P packets from GDB (writing to registers) for the address registers (A0 - A7). The problem is because of an obvious typo. Notice that the second "if" condition is meant to be n < 16 in: if (n < 8) { : } else if (n < 8) { Signed-off-by: Kazu Hirata <kazu@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* gdbstub: add MIPS16 supportNathan Froyd2009-12-131-3/+15
| | | | | | | | The only thing to do here is to expose the current processor mode to GDB and to set the processor mode properly when we change the PC. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* S390 GDB stubAlexander Graf2009-12-051-0/+52
| | | | | | | | | | | | | | | In order to debug funny kernel breakages it's always good to have a working gdb stub around. While Uli's patches don't include one one, I needed one that's at least good enough for 'bt' and some variable examinations during early bootup. So here it is - the absolute basics to get the qemu gdb stub running with s390x targets. Sgined-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
* Don't leak file descriptorsKevin Wolf2009-12-031-0/+6
| | | | | | | | We're leaking file descriptors to child processes. Set FD_CLOEXEC on file descriptors that don't need to be passed to children to stop this misbehaviour. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* char: rename CHR_EVENT_RESET to CHR_EVENT_OPENEDAmit Shah2009-10-211-1/+1
| | | | | | | | | The char event RESET is emitted when a char device is opened. Give it a better name. Patchworks-ID: 35287 Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* gdbstub: x86: Switch 64/32 bit registers dynamicallyJan Kiszka2009-10-051-13/+42
| | | | | | | | | | | | | | | | | Commit 56aebc891674cd2d07b3f64183415697be200084 changed gdbstub in way that debugging 32 or 16-bit guest code is no longer possible with qemu for x86_64 guest CPUs. Since that commit, qemu only provides registers sets for 64-bit, forcing current and foreseeable gdb to also switch its architecture to 64-bit. And this breaks if the inferior is 32 or 16 bit. No question, this is a gdb issue. But, as it was confirmed in several discusssions with gdb people, it is a non-trivial thing to fix. So until qemu finds a gdb version attach with a rework x86 support, we have to work around it by switching the register layout as the guest switches its execution mode between 16/32 and 64 bit. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* gdbstub: fix coding style nitMichael S. Tsirkin2009-09-301-1/+1
| | | | | | | | Put space between = and * when dereferencing a pointer, to avoid confusion with old-style "*=" Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* kvm: Simplify cpu_synchronize_state()Avi Kivity2009-08-271-4/+4
| | | | | | | | | | | cpu_synchronize_state() is a little unreadable since the 'modified' argument isn't self-explanatory. Simplify it by making it always synchronize the kernel state into qemu, and automatically flush the registers back to the kernel if they've been synchronized on this exit. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* rename USE_NPTL to CONFIG_USE_NPTLJuan Quintela2009-07-271-1/+1
| | | | | Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* Update to a hopefully more future proof FSF addressBlue Swirl2009-07-161-2/+1
| | | | Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* gdbstub: x86: Support for setting segment registersJan Kiszka2009-07-161-17/+31
| | | | | | | | | | This allows to set segment registers via gdb also in system emulation mode. Basic sanity checks are applied and nothing is changed if they fail. But screwing up the target via this interface will never be complicated, so I avoided being too paranoid here. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* gdbstub: x86: Refactor register accessJan Kiszka2009-07-161-73/+83
| | | | | | | | Clarify gdb's register set layout by using constants for cpu_gdb_read/write_register. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* gdbstub: Add vCont supportJan Kiszka2009-07-161-0/+58
| | | | | | | | | | This patch adds support for the vCont remote gdb command. It is used by gdb 6.8 or better to switch the debugging focus for single-stepping multi-threaded targets, ie. multi-threaded application in user mode emulation or VCPUs in system emulation. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* fix gdbstub support for multiple threads in usermode, v3Nathan Froyd2009-06-041-25/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When debugging multi-threaded programs, QEMU's gdb stub would report the correct number of threads (the qfThreadInfo and qsThreadInfo packets). However, the stub was unable to actually switch between threads (the T packet), since it would report every thread except the first as being dead. Furthermore, the stub relied upon cpu_index as a reliable means of assigning IDs to the threads. This was a bad idea; if you have this sequence of events: initial thread created new thread #1 new thread #2 thread #1 exits new thread #3 thread #3 will have the same cpu_index as thread #1, which would confuse GDB. (This problem is partly due to the remote protocol not having a good way to send thread creation/destruction events.) We fix this by using the host thread ID for the identifier passed to GDB when debugging a multi-threaded userspace program. The thread ID might wrap, but the same sort of problems with wrapping thread IDs would come up with debugging programs natively, so this doesn't represent a problem. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
* microblaze: Add GDB stub support.Edgar E. Iglesias2009-05-261-0/+32
| | | | Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
* Add 'static' to avoid a sparse warningblueswir12009-04-181-1/+1
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7175 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix ppc-softmmu warnings on OpenBSD hostblueswir12009-04-131-5/+5
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7099 c046a42c-6fe2-441c-8c8c-71466251a162
* factor out setting pc in gdbstubaurel322009-04-081-38/+25
| | | | | | | | | | | The code for handling the c and s packets both contain code for setting the pc. Move that code out to a common function. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Acked-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7039 c046a42c-6fe2-441c-8c8c-71466251a162
* gdbstub: Rework configuration via command line and monitor (Jan Kiszka)aliguori2009-04-051-14/+27
| | | | | | | | | | | | | | | | | | | | | | | Introduce a more canonical gdbstub configuration (system emulation only) via the new switch '-gdb dev'. Keep '-s' as shorthand for '-gdb tcp::1234'. Use the same syntax also for the corresponding monitor command 'gdbserver'. Its default remains to listen on TCP port 1234. Changes in v4: - Rebased over new command line switches meta file Changes in v3: - Fix documentation Changes in v2: - Support for pipe-based like to gdb (target remote | qemu -gdb stdio) - Properly update the qemu-doc 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@6992 c046a42c-6fe2-441c-8c8c-71466251a162
* gdbstub: Allow re-instantiation (Jan Kiszka)aliguori2009-03-281-21/+36
| | | | | | | | | | | | | | [ Note: depends on char closing fixes ] Properly clean up the gdbstub when the user tries to re-open it (possibly under a different address). Moreover, allow to shut it down from the monitor via 'gdbserver none'. 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@6913 c046a42c-6fe2-441c-8c8c-71466251a162
* gdbstub: Drop redundant memset after qemu_mallocz (Jan Kiszka)aliguori2009-03-281-2/+0
| | | | | | | | 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@6897 c046a42c-6fe2-441c-8c8c-71466251a162
* Guest debugging support for KVM (Jan Kiszka)aliguori2009-03-121-7/+17
| | | | | | | | | | | | | | | | | | | | | | | This is a backport of the guest debugging support for the KVM accelerator that is now part of the KVM tree. It implements the reworked KVM kernel API for guest debugging (KVM_CAP_SET_GUEST_DEBUG) which is not yet part of any mainline kernel but will probably be 2.6.30 stuff. So far supported is x86, but PPC is expected to catch up soon. Core features are: - unlimited soft-breakpoints via code patching - hardware-assisted x86 breakpoints and watchpoints Changes in this version: - use generic hook cpu_synchronize_state to transfer registers between user space and kvm - push kvm_sw_breakpoints into KVMState 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@6825 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
* Fix BSD userblueswir12009-03-071-3/+3
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6734 c046a42c-6fe2-441c-8c8c-71466251a162
* monitor: Pass-through for gdbstub (Jan Kiszka)aliguori2009-03-051-1/+53
| | | | | | | | | | | | | Create a monitor terminal and pass it through the gdbstub. This allows to use gdb's monitor command to access the QEMU monitor. Works for all commands except for non-detached migration and password retrieval (user will receive error messages instead). 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@6718 c046a42c-6fe2-441c-8c8c-71466251a162
* toplevel: remove error handling from qemu_malloc() callers (Avi Kivity)aliguori2009-02-051-8/+0
| | | | | | | | Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6531 c046a42c-6fe2-441c-8c8c-71466251a162
* target-ppc: Change core powerpc gdbstub bits to be XML-awareaurel322009-01-241-1/+22
| | | | | | | | | | | | | | | | | Define GDB_CORE_XML and hack things similarly to ARM so that despite the FP registers coming in between the GPRs and some status registers, everything works out OK no matter which kind of GDB we're communicating with. It matters whether we're built to target 64-bit or 32-bit cores. I think there are still problems if we are debugging 32-bit programs on a built-for-64-bit QEMU (QEMU will always send 64-bit registers), but I don't know if there's a good way around that at the time being. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6421 c046a42c-6fe2-441c-8c8c-71466251a162
* Rework vm_state_change notifiers (Jan Kiszka)aliguori2009-01-221-6/+5
| | | | | | | Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6402 c046a42c-6fe2-441c-8c8c-71466251a162
* add an init function parameter to qemu_chr_open()aurel322009-01-181-1/+1
| | | | | | | | | And use it for the malta emulation. Fix segfault introduced in revision 6352. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6365 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix bsd-user buildblueswir12009-01-151-0/+6
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6312 c046a42c-6fe2-441c-8c8c-71466251a162
* Fix gdbserver number of registers (Tristan Gingold)blueswir12009-01-131-2/+2
| | | | git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6280 c046a42c-6fe2-441c-8c8c-71466251a162
* gdbstub: fix gdbserver_forkedgar_igl2009-01-071-1/+1
| | | | | | | | | | | | | As reported by Martin Mohring fork doesn't work with NPTL. A fix is attached that makes the also attached test run (tested with ARM CodeSourcery 2008q3 on an x86_64 Fedora Core with kernel 2.6.23). Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6195 c046a42c-6fe2-441c-8c8c-71466251a162
* Update FSF address in GPL/LGPL boilerplateaurel322009-01-041-1/+1
| | | | | | | | | | The attached patch updates the FSF address in the GPL/LGPL boilerplate in most GPL/LGPLed files, and also in COPYING.LIB. Signed-off-by: Stuart Brady <stuart.brady@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
* User-mode GDB stub improvements - handle signalsaurel322008-12-181-15/+239
| | | | | | | | | | | | | Handle signals in the user-mode GDB stub. Report them to GDB, and allow it to change or cancel them. Also correct the protocol numbering; it happens to match Linux numbering for SIGINT and SIGTRAP, but that's just good fortune. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6096 c046a42c-6fe2-441c-8c8c-71466251a162
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