Commit Graph

152 Commits

Author SHA1 Message Date
Blue Swirl 00aa0040e8 Wrap recv to avoid warnings
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>
2011-07-25 14:38:56 +00:00
Blue Swirl 2b41f10e18 Remove exec-all.h include directives
Most exec-all.h include directives are now useless, remove them.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-26 18:25:35 +00:00
Aurelien Jarno 142ab5bb87 target-mips/gdbstub: remove old CONFIG_SOFTFLOAT #ifndef
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>
2011-06-03 16:07:49 +02:00
Alexander Graf 59467bacfa s390x: Adjust GDB stub
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>
2011-05-20 17:35:12 +02:00
Jan Kiszka 425189a8ff gdbstub: Catch and report more vmstop reasons
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>
2011-04-03 23:57:39 +02:00
Michael Walle 0c45d3d4b9 lm32: gdbstub support
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>
2011-03-07 13:42:36 +01:00
Jan Kiszka e07bbac542 Improve vm_stop reason declarations
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>
2011-02-14 12:39:46 -02:00
Fabien Chouteau e2af15b2ad gdbstub: Close connection in gdb_exit
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>
2011-01-16 20:56:01 +01:00
Blue Swirl 0b65b9e105 Use gcc warning flag -Wnested-externs
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>
2010-09-18 07:02:16 +00:00
Paolo Bonzini a88790a14f remove exec-all.h inclusion from cpu.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-07-03 09:48:24 +03:00
Paul Brook 0e1c9c54af GDB exit status for semihosting
Report exit status to GDB when a semihosted application exits.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2010-06-16 13:03:51 +01:00
Blue Swirl 5a834bb47c sparc: Fix lazy flag calculation on interrupts, refactor
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>
2010-05-09 20:19:04 +00:00
takasi-y@ops.dti.ne.jp e192a45c16 target-sh4: Fix gdb read/write register
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>
2010-02-27 16:14:14 +01:00
Daniel Gutson 7ea06da32b Fix to 'gdb detach' stub
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>
2010-02-27 16:10:41 +01:00
Richard Henderson 7c5a90dd41 target-alpha: Fix gdb access to fpcr and unique.
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>
2010-02-23 23:36:22 +01:00
Edgar E. Iglesias 4a0b59fe3b cris: Add CRISv10 gdbstub support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2010-02-20 19:51:56 +01:00
Kazu Hirata b3d6b95998 target-m68k: fix a typo in 'P' packet processing
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>
2010-01-14 20:00:23 +01:00
Nathan Froyd ff1d1977ff gdbstub: add MIPS16 support
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>
2009-12-13 20:20:20 +01:00
Alexander Graf afcb0e4559 S390 GDB stub
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>
2009-12-05 17:36:06 +01:00
Kevin Wolf 40ff6d7e8d Don't leak file descriptors
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>
2009-12-03 11:45:50 -06:00
Amit Shah b6b8df560c char: rename CHR_EVENT_RESET to CHR_EVENT_OPENED
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>
2009-10-21 13:35:37 -05:00
Jan Kiszka 5f30fa18ad gdbstub: x86: Switch 64/32 bit registers dynamically
Commit 56aebc8916 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>
2009-10-05 09:32:45 -05:00
Michael S. Tsirkin 8f4bee23eb gdbstub: fix coding style nit
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>
2009-09-30 18:45:50 +00:00
Avi Kivity 4c0960c0c4 kvm: Simplify cpu_synchronize_state()
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>
2009-08-27 20:35:30 -05:00
Juan Quintela 2f7bb8780a rename USE_NPTL to CONFIG_USE_NPTL
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:10:55 -05:00
Blue Swirl 8167ee8839 Update to a hopefully more future proof FSF address
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-16 20:47:01 +00:00
Jan Kiszka 84273177f2 gdbstub: x86: Support for setting segment registers
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>
2009-07-16 08:28:13 -05:00
Jan Kiszka b1631e7a6f gdbstub: x86: Refactor register access
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>
2009-07-16 08:28:13 -05:00
Jan Kiszka dd32aa1047 gdbstub: Add vCont support
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>
2009-07-16 08:28:13 -05:00
Nathan Froyd 1e9fa73016 fix gdbstub support for multiple threads in usermode, v3
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>
2009-06-04 10:04:49 +01:00
Edgar E. Iglesias d74d6a99a0 microblaze: Add GDB stub support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26 21:11:04 +02:00
blueswir1 654efcf3ed Add 'static' to avoid a sparse warning
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7175 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-18 07:29:59 +00:00
blueswir1 2dc766dafc Fix ppc-softmmu warnings on OpenBSD host
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7099 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-13 16:06:19 +00:00
aurel32 fab9d28414 factor out setting pc in gdbstub
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
2009-04-08 21:29:37 +00:00
aliguori 59030a8cd4 gdbstub: Rework configuration via command line and monitor (Jan Kiszka)
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
2009-04-05 18:43:41 +00:00
aliguori 36556b20c5 gdbstub: Allow re-instantiation (Jan Kiszka)
[ 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
2009-03-28 18:05:53 +00:00
aliguori 0fe17f5efb gdbstub: Drop redundant memset after qemu_mallocz (Jan Kiszka)
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
2009-03-28 17:28:49 +00:00
aliguori e22a25c936 Guest debugging support for KVM (Jan Kiszka)
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
2009-03-12 20:12:48 +00:00
aurel32 3098dba01c Use a dedicated function to request exit from execution loop
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 21:28:24 +00:00
blueswir1 0b8a988c5d Fix BSD user
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6734 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 10:51:36 +00:00
aliguori 8a34a0fb03 monitor: Pass-through for gdbstub (Jan Kiszka)
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
2009-03-05 23:01:55 +00:00
aliguori 1eec614b36 toplevel: remove error handling from qemu_malloc() callers (Avi Kivity)
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
2009-02-05 22:06:18 +00:00
aurel32 e571cb477b target-ppc: Change core powerpc gdbstub bits to be XML-aware
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
2009-01-24 15:07:42 +00:00
aliguori 9781e0401a Rework vm_state_change notifiers (Jan Kiszka)
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
2009-01-22 17:15:29 +00:00
aurel32 ceecf1d158 add an init function parameter to qemu_chr_open()
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
2009-01-18 14:08:04 +00:00
blueswir1 c72d5bf87e Fix bsd-user build
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6312 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15 17:27:45 +00:00
blueswir1 5a37791249 Fix gdbserver number of registers (Tristan Gingold)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6280 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-13 16:28:01 +00:00
edgar_igl 9f6164d6f6 gdbstub: fix gdbserver_fork
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
2009-01-07 10:22:28 +00:00
aurel32 fad6cb1a56 Update FSF address in GPL/LGPL boilerplate
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
2009-01-04 22:05:52 +00:00
aurel32 ca587a8ebd User-mode GDB stub improvements - handle signals
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
2008-12-18 22:44:13 +00:00