Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

When restoring register values, increase the stack register for skipped
values.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NAndrzej Zaborowski <andrew.zaborowski@intel.com>

tlb_set_page isn't meaningful for userspace emulation, so remove it.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Move definitions for subpage handling into !CONFIG_USER_ONLY code.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Fix function signature for userspace disassembler symbol lookup.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Only include ioport.h where it is actually needed.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Userspace doesn't have physical memory, so cpu_physical_memory_rw
makes no sense.  This is only used to implement cpu_memory_rw_debug, so
just implement that directly instead.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Userspace emulation doesn't have a physical address space, so
l1_phys_map makes no sense. This code is never actually used, so don't
try and build it.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Remove bogus virtual->physical address translation in
breakpoint_invalidate for userspace emulation.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

implementation only widened the 32bit source vector elements into a
64bit destination vector but forgot to perform the actual shifting
operation.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: NRiku Voipio <riku.voipio@nokia.com>
Acked-by: NLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The rounding/truncating options were inverted. truncating
was done when rounding was meant and vice verse.
Signed-off-by: NRiku Voipio <riku.voipio@nokia.com>
Acked-by: NLaurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

If you make use of hw breakpoints on a 32bit x86 linux host, qemu
will segmentation fault when processing the exception.

The problem is that the value of env is stored in $ebp in the op_helper
raise_exception() function, and it can have the wrong value when
calling it from non generated code.

It is possible to work around the problem by restoring the value of
env before calling raise_exception() using a new helper function that
takes (CPUState *) as one of the arguments.
Signed-off-by: NJason Wessel <jason.wessel@windriver.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Move userland PALcode handling into linux-user main loop so that
we can send signals from there.  This also makes alpha_palcode.c
system-level only, so don't build it for userland.  Add defines
for GENTRAP PALcall mapping to signals.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

IEEE FP instructions are split up so that the rounding mode
coming from the instruction and exceptions (both masking and
delivery) are handled external to the base FP operation.
FP exceptions are properly raised for non-finite inputs to
instructions that do not indicate software completion.

A shortcut is applied if CONFIG_SOFTFLOAT_INLINE is defined
at the top of translate.c: data is loaded and stored into
FP_STATUS directly instead of using the functional interface
defined by "softfloat.h".
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Invalid opcode messages can be perfectly normal, for example if this
code is never executed. Don't print an error message on the console,
but keep the message in the log for debugging purposes.
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

This reverts commit 6454e7be.

Signed-off-by: Nmalc <av1474@comtv.ru>

Trivial patch to fix the spelling of "parameters".
Signed-off-by: Nmalc <av1474@comtv.ru>

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

Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Acked-by: NGerd Hoffmann <kraxel@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Since kernel uimage is getting bigger,
old fixed loading bases will result in regions overlap.

Add pad for fdt and ramdisk, so that they won't overlap with uimage.
Signed-off-by: NLiu Yu <yu.liu@freescale.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

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

It's convinent to use rom to checking overlap, to reset etc.
And uImage and ramdisk loading has already moved to it.

Also, after we add fdt to rom, free it.
Signed-off-by: NLiu Yu <yu.liu@freescale.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

So that the following registers init could be flushed back to kvm.
Signed-off-by: NLiu Yu <yu.liu@freescale.com>
Acked-by: NHollis Blanchard <hollis@penguinppc.org>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

cpu_gdb_read_register(): Fix n={8...15} case.
cpu_gdb_write_register(): Fix n={8...15} case and runaway "case:".
Signed-off-by: NTakashi YOSHII <takasi-y@ops.dti.ne.jp>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The shifts in the gen_evsplat* functions were expecting rA to be masked,
not extracted, and so used the wrong shift amounts to sign-extend or pad
with zeroes.
Signed-off-by: NNathan Froyd <froydnj@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The CRF_{CH,CL,CH_OR_CL,CH_AND_CL} constants were all off by one bit
position.  Because of this, the SPE evcmp* family of instructions would
store values in the result condition register that were also off by one
bit position.

Fixed by using the CRF_{LT,GT,EQ,SO} constants for the shift amounts.
Signed-off-by: NNathan Froyd <froydnj@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Compilation of m68k-softmmu or m68k-linux-user on arm host
(or cross compilation for arm) results in a linker warning:

  LINK  m68k-softmmu/qemu-system-m68k
m68k-dis.o: warning: definition of `floatformat_ieee_single_little' overriding common
arm-dis.o: warning: common is here
/usr/lib/gcc/arm-linux-gnueabi/4.3.2/../../../../arm-linux-gnueabi/bin/ld: Warning: size of symbol `floatformat_ieee_single_little' changed from 4 in arm-dis.o to 48 in m68k-dis.o

floatformat_ieee_single_little is declared in arm-dis.c and m68k-dis.c,
and both declarations don't match, so this is an error.

The symbol is not needed in arm-dis.c, so I removed it there.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Commit b5ec5ce0 broke 'make install' from non source-dir build. Fix.
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

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: NDaniel Gutson <dgutson@codesourcery.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

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

Signed-off-by: Nmalc <av1474@comtv.ru>

b551ec04 fixed
the compilation for 32 bit hosts, but introduced
a new error for 64 bit hosts:

tcg_temp_new_ptr needs a matching tcg_temp_free_ptr.
Signed-off-by: NStefan Weil <weil@mail.berlios.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

If -usbdevice is used on a machine with no USB busses, usb_create
will fail and return NULL.  Patch below handles this failure gracefully
rather than crashing when we try to init the device.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Tix typo in default-configs/arm-softmmu.mak
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Replace the EXCP_ARITH_OVERFLOW placeholder with the complete
set of bits from the EXC_SUM IPR.  Use them in the existing
places where we raise arithmetic exceptions.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The existing set of IPRs is totally irrelevant to user-mode emulation.
Indeed, they most are irrelevant to implementing kernel-mode emulation,
and would only be relevant to PAL-mode emulation, which I suspect that
no one will ever attempt.

Reducing the set of processor registers reduces the size of the CPU state.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The fpcr_exc_status, fpcr_exc_mask, and fpcr_dyn_round fields
are stored in <softfloat.h> format for convenience during
regular execution.

Revert the addition of float_exception_mask to float_status,
added in ba0e276d.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

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: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>