Commit Graph

128 Commits

Author SHA1 Message Date
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
aurel32 2b1319c85c User-mode GDB stub improvements - handle fork
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
2008-12-18 22:44:04 +00:00
aurel32 19bf517b7f target-alpha: gdb-stub support
(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5945 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07 23:26:32 +00:00
aurel32 3faf778e9d gdbstub: kill a warning
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5943 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07 23:26:17 +00:00
blueswir1 69d6451c3e Fix some new warnings introduced after r5022
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5933 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-07 19:30:18 +00:00
aurel32 8d4acf9b90 gdbstub: Fix access to PPC FPRs
Obviously, someone forgot to rebase the index before accessing one of
the 32 FPRs.

Signed-off-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@5821 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-30 16:23:18 +00:00
aliguori 880a757838 gdbstub: manage CPUs as threads (Jan Kiszka)
This patch enhances QEMU's built-in debugger for SMP guest debugging.
Using the thread support of the gdb remote protocol, each VCPU is mapped
on a pseudo thread and exposed to the gdb frontend. This way you can
easy switch the focus of gdb between the VCPUs and observe their states.
On breakpoint hit, the focus is automatically adjusted just as for
normal multi-threaded application under gdb control.

Furthermore, the patch propagates breakpoint and watchpoint insertions
or removals to all CPUs, not just the current one as it was the case so
far. Without this, SMP guest debugging was practically unfeasible.

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@5743 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18 20:30:24 +00:00
aliguori a1d1bb3101 Refactor and enhance break/watchpoint API (Jan Kiszka)
This patch prepares the QEMU cpu_watchpoint/breakpoint API to allow the
succeeding enhancements this series comes with.

First of all, it overcomes MAX_BREAKPOINTS/MAX_WATCHPOINTS by switching
to dynamically allocated data structures that are kept in linked lists.
This also allows to return a stable reference to the related objects,
required for later introduced x86 debug register support.

Breakpoints and watchpoints are stored with their full information set
and an additional flag field that makes them easily extensible for use
beyond pure guest debugging.

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@5738 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18 20:07:32 +00:00
aliguori d6fc1b397b gdbstub: Return appropriate watch message to gdb (Jan Kiszka)
Return the appropriate type prefix (r, a, none) when reporting
watchpoint hits to the gdb front-end.

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@5737 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18 19:55:44 +00:00
aliguori 5ccfae10a7 Implement "info chardev" command. (Gerd Hoffmann)
This patch makes qemu keep track of the character devices in use and
implements a "info chardev" monitor command to print a list.

qemu_chr_open() sticks the devices into a linked list now.  It got a new
argument (label), so there is a name for each device.  It also assigns a
filename to each character device.  By default it just copyes the
filename passed in.  Individual drivers can fill in something else
though.  qemu_chr_open_pty() sets the filename to name of the pseudo tty
allocated.

Output looks like this:

  (qemu) info chardev
  monitor: filename=unix:/tmp/run.sh-26827/monitor,server,nowait
  serial0: filename=unix:/tmp/run.sh-26827/console,server
  serial1: filename=pty:/dev/pts/5
  parallel0: filename=vc:640x480

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5575 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-31 17:31:29 +00:00
blueswir1 5b3715bfda Use snprintf to please OpenBSD linker
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5529 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-25 11:18:12 +00:00
aurel32 3d7b417e13 target-ppc: Convert XER accesses to TCG
Define XER bits as a single register and access them individually to
avoid defining 5 32-bit registers (TCG doesn't permit to map 8-bit
registers).

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5500 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-21 11:28:46 +00:00
aurel32 064f6633d6 gdbstub: remove unused local variable
Signed-off-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@5489 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-14 19:23:35 +00:00
edgar_igl d7b6967af4 CRIS: Handle GDB writes to pregs.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5461 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11 19:32:21 +00:00
pbrook 56aebc8916 Add GDB XML register description support.
Signed-off-by: Paul Brook <paul@codesourcery.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5459 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-11 17:55:29 +00:00
ths f01be15458 Move the active FPU registers into env again, and use more TCG registers
to access them.

Signed-off-by: Thiemo Seufer <ths@networkno.de>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5252 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-18 11:57:27 +00:00
blueswir1 7ccfb2eb5f Fix warnings that would be caused by gcc flag -Wwrite-strings
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5206 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-14 06:45:34 +00:00
blueswir1 363a37d520 Fix OpenBSD linker warnings
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5044 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-21 17:58:08 +00:00
ths b5dc7732e1 More efficient target register / TC accesses.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-27 10:02:35 +00:00
pbrook 0f459d16c3 Clean up MMIO TLB handling.
The IO index is now stored in its own field, instead of being wedged
into the vaddr field.  This eliminates the ROMD and watchpoint host
pointer weirdness.  The IO index space is expanded by 1 bit, and
several additional bits are made available in the TLB vaddr field.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4704 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-09 00:20:13 +00:00
blueswir1 96d1912622 Fix Sparc32plus GDBstub support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4689 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-07 08:03:05 +00:00
edgar_igl 1f487ee9b8 Support signal reception in user-mode. Handle when the peer terminates or aborts the connection.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4483 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-17 22:20:53 +00:00
edgar_igl 7d03f82f81 Add support for the 'k' (kill) and 'D' (detach) packets (Jason Wessel).
Implement the 'k' gdbserial packet which kills the qemu instance via
the debugger stub.

Implement the 'D' detach packet for the gdb stub such that you can
disconnect gdb with the "detach" command.  This required implementing
a cpu_breakpoint_remove_all() and a cpu_watchpoint_remove_all()
function to cleanup all the breakpoints and watchpoints prior to
leaving the gdb stub else simulation can stop with no debugger
attached.

On a '?' packet remove all the breakpoints and watchpoints.  This is
considered more of a safety net in case you force killed gdb or it
crashed and you are reconnecting.  The identical behavior exists for
kgdb in the linux kernel.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4478 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-17 18:58:29 +00:00
bellard 798085733c x86_64 and better i386 support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4394 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09 14:40:22 +00:00
edgar_igl fde3fd6184 Remove x86-64 specific reg fillers.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4392 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-09 08:50:01 +00:00