Not only are the sve-related tb_flags fields unused when SVE is
disabled, but not all of the cpu registers are initialized properly
for computing same. This can corrupt other fields by ORing in -1,
which might result in QEMU crashing.
This bug was not present in 3.0, but this patch is cc'd to
stable because adf92eab90e3f5f34c285 where the bug was
introduced was marked for stable.
Backports commit e79b445d896deb61909be52b61b87c98a9ed96f7 from qemu
We emit a dummy variable in each .c file "to shut up OSX toolchain
warnings about empty .o files" (commit 252dc3105fc). Separate it from
the code preceding it (if any) with a blank line.
Backports commit 5f1450f5444b42cde4b1edc61ea5fdcd57404d3e from qemu
The generated qapi_event_send_FOO() take an Error ** argument. They
can't actually fail, because all they do with the argument is passing it
to functions that can't fail: the QObject output visitor, and the
@qmp_emit callback, which is either monitor_qapi_event_queue() or
event_test_emit().
Drop the argument, and pass &error_abort to the QObject output visitor
and @qmp_emit instead.
Backports commit 3ab72385b21d8d66df3f5fea42097ce264dc9d6b from qemu
build_params() returns '' instead of 'void' when there are no
parameters. Can't happen now, but the next commit will change that.
Backports commit bdd2d42b890b3a908fa3fbdc9661541e1b57eb15 from qemu
This was intentionally broken to make updating qemu as quick as possible
when it was woefully out of date, particularly because the interface of
qemu's TCG changed quite a bit, so this code would have needed to be
changed anyways.
Now that qemu is up to date for this variant of Unicorn, we can repair
this functionality and also--and I put massive emphasis on this, since
this wasn't done in the original Unicorn repo--*actually document what
the heck we're doing in this case*, so it's not a pain to change in the
future if we actually need to do that. It makes it much, much, simpler
for people not involved with qemu to understand what is going on in this
case.
These used to be necessary, as the relevant variables used to be void*,
thus making the casts necessary. Given they were changed to concrete
types over the course of backporting, these are unnecessary.
These functions, over the course of backporting qemu's newer changes,
were altered to return non-zero in the case of success, so we need to
update the cpu read/write functions as necessary.
* Haiku: fix broken gcc strong stack protector
* qemu: Backport minor Haiku fix
We need to push this fix upstream to qemu. If we don't
get it upstreamed, i'll circle back and patch it if
Unicorn updates its qemu version.
Backports commit c7be4a2160e15089563f207752fb346a38db18ec from unicorn
Adds SYSENTER to the whitelist of supported hookable instructions in unicorn
as well as fixes up the existing sysenter_hook_x86 regression test which was
previously failing
Fixesunicorn-engine/unicorn#995
Backports commit 0f14c473445661a633ca5bda3a91ba1a87c35c64 from unicorn
Update BadInstr and BadInstrX registers for nanoMIPS. The same
support for pre-nanoMIPS remains unimplemented.
Backports commit 7a5f784aa215df6bf5d674b4003f8df43bf3b2d4 from qemu
Use bits from configuration registers for availability control
of MT ASE instructions, rather than only ISA_MT bit in insn_flags.
This is done by adding a field in hflags for MT bit, and adding
functions check_mt() and check_cp0_mt().
Backports commit 9affc1c59279f482ff145e0371926f79b6448e3e from qemu
Implement support for nanoMIPS LLWP/SCWP instructions. Beside
adding core functionality of these instructions, this patch adds
support for availability control via configuration bit XNP.
Backports commit 0b16dcd180bdbe3add9edea42c2374d427882661 from qemu
Add CP0_Config3 and CP0_Config5 to DisasContext structure. This is
needed for implementing availability control of various instructions.
Backports commit ab77fc611bf004dfd25ecad5b2c11261e32012e9 from qemu
Implement emulation of nanoMIPS EXTW instruction. EXTW instruction
is similar to the MIPS r6 ALIGN instruction, except that it counts
the other way and in bits instead of bytes. We therefore generalise
gen_align() function into a new gen_align_bits() function (which
counts in bits instead of bytes and optimises when bits = size of
the word), and implement gen_align() and a new gen_ext() based on
that. Since we need to know the word size to check for when the
number of bits == the word size, the opc argument is replaced with
a wordsz argument (either 32 or 64).
Backports commit 821f2008c3c708e0e33158039ab55673a0f04519 from qemu
Added a helper for ROTX based on the pseudocode from the
architecture spec. This instraction was not present in previous
MIPS instruction sets.
Backports commit e222f5067269392af489731221750976d0cf3c05 from qemu
Add emulation of nanoMIPS instructions situated in pool p_lsx, and
emulation of LSA instruction as well.
Backports commit eac5266459fb83e70fbf33f95c7c846f89df5c6a from qemu
