Remove the first label and redirect all uses to the second.
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This allows us to easily find all branches that use a label.
Since 'refs' is only tested vs zero, remove it and test for
an empty list instead. Drop the use of bitfields, which had
been used to pack refs into a single 32-bit word.
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When CONFIG_PROFILER is set there are various undefined references to
profile_getclock. Include the header which defines this function.
For example:
../tcg/tcg.c: In function ‘tcg_gen_code’:
../tcg/tcg.c:4905:51: warning: implicit declaration of function ‘profile_getclock’ [-Wimplicit-function-declaration]
4905 | qatomic_set(&prof->opt_time, prof->opt_time - profile_getclock());
| ^~~~~~~~~~~~~~~~
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230303084948.3351546-1-rjones@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reusing TEMP_TB interferes with detecting whether the
temp can be adjusted to TEMP_EBB.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All of these have obvious and quite local scope.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
While the argument can only be TEMP_EBB or TEMP_TB,
it's more obvious this way.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
TEMP_NORMAL is a subset of TEMP_EBB. Promote single basic
block temps to single extended basic block.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Attempt to reduce the lifetime of TEMP_TB.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This makes it easier to assign blame with perf.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use TEMP_TB as that is more explicit about the default
lifetime of the data. While "global" and "local" used
to be contrasting, we have more lifetimes than that now.
Do not yet rename tcg_temp_local_new_*, just the enum.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Just because the label reference count is more than 1 does
not mean we cannot remove a branch-to-next. By doing this
first, the label reference count may drop to 0, and then
the label itself gets removed as before.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Change the temps_in_use check to use assert not fprintf.
Move the assert for double-free before the check for count,
since that is the more immediate problem.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221219170806.60580-2-philmd@linaro.org>
This enables allocation of i128. The type is not yet
usable, as we have not yet added data movement ops.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Fill in the parameters for the host ABI for Int128 for
those backends which require no extra modification.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Fill in the parameters for libffi for Int128.
Adjust the interpreter to allow for 16-byte return values.
Adjust tcg_out_call to record the return value length.
Call parameters are no longer all the same size, so we
cannot reuse the same call_slots array for every function.
Compute it each time now, but only fill in slots required
for the call we're about to make.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This will be used by _WIN64 to return i128. Not yet used,
because allocation is not yet enabled.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Replace the flat array tcg_target_call_oarg_regs[] with
a function call including the TCGCallReturnKind.
Extend the set of registers for ARM to r0-r3 to match the ABI:
https://github.com/ARM-software/abi-aa/blob/main/aapcs32/aapcs32.rst#result-return
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These will be used by some hosts, both 32 and 64-bit, to pass and
return i128. Not yet used, because allocation is not yet enabled.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Implement the function for arm, i386, and s390x, which will use it.
Add stubs for all other backends.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When allocating a temp to the stack frame, consider the
base type and allocate all parts at once.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Many hosts pass and return 128-bit quantities like sequential
64-bit quantities. Treat this just like we currently break
down 64-bit quantities for a 32-bit host.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Correctly handle large types while lowering.
Fixes: fac87bd2a4 ("tcg: Add temp_subindex to TCGTemp")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There are actually a whole bunch of helpers that don't affect memory
that we shouldn't instrument. They are helpfully identified by the
TCG_CALL_NO_SIDE_EFFECTS flag which marks out lookup_tb_ptr as well as
a lot of the maths helpers. To avoid the string compare we introduce a
new flag for plugin internals so we skip that too.
Related: #1381
Signed-off-by: Emilio Cota <cota@braap.org>
Message-Id: <20230108164731.61469-4-cota@braap.org>
[AJB: updated to skip all no SE plugins, add flag for plugin helper]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230124180127.1881110-34-alex.bennee@linaro.org>
We now have the option to generate direct or indirect
goto_tb depending on the dynamic displacement, thus
the define is no longer necessary or completely accurate.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Stop overloading jmp_target_arg for both offset and address,
depending on TCG_TARGET_HAS_direct_jump. Instead, add a new
field to hold the jump insn offset and always set the target
address in jmp_target_addr[]. This will allow a tcg backend
to use either direct or indirect depending on displacement.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This can replace four other variables that are references
into the TranslationBlock structure.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This will shortly be used for more than reset.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The INDEX_op_goto_tb opcode needs no register allocation.
Split out a dedicated helper function for it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Similar to the existing set_jmp_reset_offset. Include the
rw->rx address space conversion done by arm and s390x, and
forgotten by mips and riscv.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Similar to the existing set_jmp_reset_offset. Move any assert for
TCG_TARGET_HAS_direct_jump into the new function (which now cannot
be build-time). Will be unused if TCG_TARGET_HAS_direct_jump is
constant 0, but we can't test for constant in the preprocessor,
so just mark it G_GNUC_UNUSED.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The INDEX_op_exit_tb opcode needs no register allocation.
Split out a dedicated helper function for it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add ability to dump /tmp/perf-<pid>.map and jit-<pid>.dump.
The first one allows the perf tool to map samples to each individual
translation block. The second one adds the ability to resolve symbol
names, line numbers and inspect JITed code.
Example of use:
perf record qemu-x86_64 -perfmap ./a.out
perf report
or
perf record -k 1 qemu-x86_64 -jitdump ./a.out
DEBUGINFOD_URLS= perf inject -j -i perf.data -o perf.data.jitted
perf report -i perf.data.jitted
Co-developed-by: Vanderson M. do Rosario <vandersonmr2@gmail.com>
Co-developed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230112152013.125680-4-iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This eliminates an ifdef for TCI, and will be required for
expanding the call for TCGv_i128.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Instead of requiring a separate hash table lookup,
put a pointer to the CIF into TCGHelperInfo.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org>
[PMD: Split from bigger patch]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221122180804.938-4-philmd@linaro.org>
In the unlikely case of invalid typecode mask, the function
will abort instead of returning a NULL pointer.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org>
[PMD: Split from bigger patch]
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221122180804.938-2-philmd@linaro.org>
Pre-compute the function call layout for each helper at startup.
Drop TCG_CALL_DUMMY_ARG, as we no longer need to leave gaps
in the op->args[] array. This allows several places to stop
checking for NULL TCGTemp, to which TCG_CALL_DUMMY_ARG mapped.
For tcg_gen_callN, loop over the arguments once. Allocate the TCGOp
for the call early but delay emitting it, collecting arguments first.
This allows the argument processing loop to emit code for extensions
and have them sequenced before the call.
For tcg_reg_alloc_call, loop over the arguments in reverse order,
which allows stack slots to be filled first naturally.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly have the possibility of more that two outputs,
though only for calls (for which preferences are moot). Avoid
direct references to op->output_pref[] when possible.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have been allocating a worst case number of arguments
to support calls. Instead, allow the size to vary.
By default leave space for 4 args, to maximize reuse,
but allow calls to increase the number of args to 32.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split patch in two]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-3-philmd@linaro.org>
In order to have variable size allocated TCGOp, pass the number
of arguments we use (and would allocate) up to tcg_op_alloc().
This alters tcg_emit_op(), tcg_op_insert_before() and
tcg_op_insert_after() prototypes.
In tcg_op_alloc() ensure the number of arguments is in range.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Extracted from bigger patch]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221218211832.73312-2-philmd@linaro.org>
Change 32-bit tci TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EVEN, to
force 32-bit values to be aligned to 64-bit. With a small reorg
to the argument processing loop, this neatly replaces an ifdef for
CONFIG_TCG_INTERPRETER.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For 64-bit hosts that had TCG_TARGET_EXTEND_ARGS, set
TCG_TARGET_CALL_ARG_I32 to TCG_CALL_ARG_EXTEND.
Otherwise, use TCG_CALL_ARG_NORMAL.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
For 32-bit hosts when TCG_TARGET_CALL_ALIGN_ARGS was set, use
TCG_CALL_ARG_EVEN. For 64-bit hosts, TCG_TARGET_CALL_ALIGN_ARGS
was silently ignored, so always use TCG_CALL_ARG_NORMAL.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add a helper function for computing the size of a type.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Allocate the first of a pair at the lower address, and the
second of a pair at the higher address. This will make it
easier to find the beginning of the larger memory block.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The first thing that temp_sync does is check mem_coherent,
so there's no need for the caller to do so.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Record the location of a TCGTemp within a larger object.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There are several instances where we need to be able to
allocate a pair of registers to related inputs/outputs.
Add 'p' and 'm' register constraints for this, in order to
be able to allocate the even/odd register first or second.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In preparation of introducing paired registers,
massage a bit process_op_defs()'s switch case.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
[PMD: Split from bigger patch, 1/3]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221219220925.79218-2-philmd@linaro.org>
We now check the consistency of reg_to_temp[] with each update,
so the utility of checking consistency at the end of each
opcode is minimal. In addition, the form of this check is
quite expensive, consuming 10% of a checking-enabled build.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Create two new functions, set_temp_val_{reg,nonreg}.
Assert that the reg_to_temp mapping is correct before
any changes are made.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The assignment to mem_coherent should be done with any
modification, not simply with a newly allocated register.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The hppa host code has been removed since 2013; this
should have been deleted at the same time.
Fixes: 802b508123 ("tcg-hppa: Remove tcg backend")
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Replace goto allocate_in_reg with a boolean.
Remove o_preferred_regs which isn't used, except to copy.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Remove whitespace at end of line, plus one place this also
highlights some missing braces.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
- cleanup win32/64 docker files
- update test-mingw test
- add flex/bison to debian-all-test
- handle --enable-static/--disable-pie in config
- extend timeouts on x86_64 avocado tests
- add flex/bison to debian-hexagon-cross
- use regular semihosting for nios2 check-tcg
- fix obscure linker error to nios2 softmmu tests
- various windows portability fixes for tests
- clean-up of MAINTAINERS
- use -machine none when appropriate in avocado
- make raspi2_initrd test detect shutdown
- disable sh4 rd2 tests on gitlab
- re-enable threadcount/linux-test for sh4
- clean-up s390x handling of "ex" instruction
- better handle new CPUs in execlog plugin
- pass CONFIG_DEBUG_TCG to plugin builds
- try and avoid races in test-io-channel-command
- speed up ssh key checking for tests/vm
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Merge tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu into staging
testing and plugin updates for 7.2:
- cleanup win32/64 docker files
- update test-mingw test
- add flex/bison to debian-all-test
- handle --enable-static/--disable-pie in config
- extend timeouts on x86_64 avocado tests
- add flex/bison to debian-hexagon-cross
- use regular semihosting for nios2 check-tcg
- fix obscure linker error to nios2 softmmu tests
- various windows portability fixes for tests
- clean-up of MAINTAINERS
- use -machine none when appropriate in avocado
- make raspi2_initrd test detect shutdown
- disable sh4 rd2 tests on gitlab
- re-enable threadcount/linux-test for sh4
- clean-up s390x handling of "ex" instruction
- better handle new CPUs in execlog plugin
- pass CONFIG_DEBUG_TCG to plugin builds
- try and avoid races in test-io-channel-command
- speed up ssh key checking for tests/vm
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# gpg: Signature made Tue 01 Nov 2022 09:49:39 EDT
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* tag 'pull-testing-for-7.2-011122-3' of https://github.com/stsquad/qemu: (31 commits)
tests/vm: use -o IdentitiesOnly=yes for ssh
tests/unit: cleanups for test-io-channel-command
contrib/plugins: protect execlog's last_exec expansion
contrib/plugins: enable debug on CONFIG_DEBUG_TCG
tests/tcg: include CONFIG_PLUGIN in config-host.mak
target/s390x: fake instruction loading when handling 'ex'
target/s390x: don't probe next pc for EXecuted insns
target/s390x: don't use ld_code2 to probe next pc
tests/tcg: re-enable threadcount for sh4
tests/tcg: re-enable linux-test for sh4
tests/avocado: disable sh4 rd2 tests on Gitlab
tests/avocado: raspi2_initrd: Wait for guest shutdown message before stopping
tests/avocado: set -machine none for userfwd and vnc tests
MAINTAINERS: fix-up for check-tcg Makefile changes
MAINTAINERS: add features_to_c.sh to gdbstub files
MAINTAINERS: add entries for the key build bits
hw/usb: dev-mtp: Use g_mkdir()
block/vvfat: Unify the mkdir() call
tcg: Avoid using hardcoded /tmp
semihosting/arm-compat-semi: Avoid using hardcoded /tmp
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Use g_get_tmp_dir() to get the directory to use for temporary files.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221006151927.2079583-3-bmeng.cn@gmail.com>
Message-Id: <20221027183637.2772968-12-alex.bennee@linaro.org>
When registering helpers via FFI for TCI, the inner loop that iterates
parameters of the helper reuses (and thus pollutes) the same variable
used by the outer loop that iterates all helpers, thus made some helpers
unregistered.
Fix this logic error by using a dedicated temporary variable for the
inner loop.
Fixes: 22f15579fa ("tcg: Build ffi data structures for helpers")
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Message-Id: <20221028072145.1593205-1-uwu@icenowy.me>
[rth: Move declaration of j to the for loop itself]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Since 9b9c37c364, we have only supported sparc64 cpus.
Debian and Gentoo now only support 64-bit sparc64 userland,
so it is time to drop the 32-bit sparc64 userland: sparc32plus.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The availability of tb->pc will shortly be conditional.
Introduce accessor functions to minimize ifdefs.
Pass around a known pc to places like tcg_gen_code,
where the caller must already have the value.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
G_NORETURN was introduced in glib 2.68, fallback to G_GNUC_NORETURN in
glib-compat.
Note that this attribute must be placed before the function declaration
(bringing a bit of consistency in qemu codebase usage).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <20220420132624.2439741-20-marcandre.lureau@redhat.com>
With TCG_OPF_COND_BRANCH, we extended the lifetimes of
globals across extended basic blocks. This means that
the liveness computed in pass 1 does not kill globals
in the same way as normal temps.
Introduce TYPE_EBB to match this lifetime, so that we
get correct register allocation for the temps that we
introduce during the indirect lowering pass.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: b4cb76e620 ("tcg: Do not kill globals at conditional branches")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All uses flush output immediately before or after qemu_log_unlock.
Instead of a separate call, move the flush into qemu_log_unlock.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-20-richard.henderson@linaro.org>
We have already looked up and locked the filepointer.
Use fprintf instead of qemu_log directly for output
in and around tcg_dump_ops.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-12-richard.henderson@linaro.org>
Inside qemu_log, we perform qemu_log_trylock/unlock, which need
not be done if we have already performed the lock beforehand.
Always check the result of qemu_log_trylock -- only checking
qemu_loglevel_mask races with the acquisition of the lock on
the logfile.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-10-richard.henderson@linaro.org>
This function can fail, which makes it more like ftrylockfile
or pthread_mutex_trylock than flockfile or pthread_mutex_lock,
so rename it.
To closer match the other trylock functions, release rcu_read_lock
along the failure path, so that qemu_log_unlock need not be called
on failure.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-8-richard.henderson@linaro.org>
Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.
This can help to make some code independent from qemu too.
gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[ For the s390x parts I'm involved in ]
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323155743.1585078-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We've had placeholders for these opcodes for a while,
and should have support on ppc, s390x and avx512 hosts.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The qemu_icache_linesize, qemu_icache_linesize_log,
qemu_dcache_linesize, and qemu_dcache_linesize_log variables are not
used in many files. Move them out of osdep.h to a new
qemu/cacheinfo.h, and document them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-5-peter.maydell@linaro.org
Renaming defines for quad in their various forms so that their signedness is
now explicit.
Done using git grep as suggested by Philippe, with a bit of hand edition to
keep assignments aligned.
Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220106210108.138226-2-frederic.petrot@univ-grenoble-alpes.fr
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
With arm32, the ABI gives us 8-byte alignment for the stack.
While it's possible to realign the stack to provide 16-byte alignment,
it's far easier to simply not encode 16-byte alignment in the
VLD1 and VST1 instructions that we emit.
Remove the assertion in temp_allocate_frame, limit natural alignment
to the provided stack alignment, and add a comment.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1999878
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210912174925.200132-1-richard.henderson@linaro.org>
Message-Id: <20211206191335.230683-2-richard.henderson@linaro.org>
This is a counterpart to the HMP "info opcount" command. It is being
added with an "x-" prefix because this QMP command is intended as an
ad hoc debugging tool and will thus not be modelled in QAPI as fully
structured data, nor will it have long term guaranteed stability.
The existing HMP command is rewritten to call the QMP command.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is a counterpart to the HMP "info jit" command. It is being
added with an "x-" prefix because this QMP command is intended as an
ad hoc debugging tool and will thus not be modelled in QAPI as fully
structured data, nor will it have long term guaranteed stability.
The existing HMP command is rewritten to call the QMP command.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Pretending that the source is i64 when it is in fact i32 is
incorrect; we have type-changing opcodes that must be used.
This bug trips up the subsequent change to the optimizer.
Fixes: 4f2331e5b6
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These functions have been replaced by cpu_*_mmu as the
most proper interface to use from target code.
Hide these declarations from code that should not use them.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We're about to move this out of tcg.h, so rename it
as we did when moving MemOp.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Since 6eea04347e, all tcg backends support goto_ptr.
Remove the conditional, making support mandatory.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
In tcg_region_prologue_set, we reset TCGContext.code_gen_ptr.
So do that after we've used it to dump the prologue contents.
Fixes: b0a0794a0f
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We lost the ',' following the called function name.
Fixes: 3e92aa3443
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This will eventually simplify front-end usage, and will allow
backends to unset TCG_TARGET_HAS_MEMORY_BSWAP without loss of
optimization.
The argument is added during expansion, not currently exposed to the
front end translators. The backends currently only support a flags
value of either TCG_BSWAP_IZ, or (TCG_BSWAP_IZ | TCG_BSWAP_OZ),
since they all require zero top bytes and leave them that way.
At the existing call sites we pass in (TCG_BSWAP_IZ | TCG_BSWAP_OZ),
except for the flags-ignored cases of a 32-bit swap of a 32-bit
value and or a 64-bit swap of a 64-bit value, where we pass 0.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Assume that we'll have fewer temps allocated after
restarting with a fewer number of instructions.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This function should have been updated for vector types
when they were introduced.
Fixes: d2fd745fe8
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/367
Cc: qemu-stable@nongnu.org
Tested-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We should not be aligning the offset in temp_allocate_frame,
because the odd offset produces an aligned address in the end.
Instead, pass the logical offset into tcg_set_frame and add
the stack bias last.
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This operation is critical to staying within the interpretation
loop longer, which avoids the overhead of setup and teardown for
many TBs.
The check in tcg_prologue_init is disabled because TCI does
want to use NULL to indicate exit, as opposed to branching to
a real epilogue.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This requires adjusting where arguments are stored.
Place them on the stack at left-aligned positions.
Adjust the stack frame to be at entirely positive offsets.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Add libffi as a build requirement for TCI.
Add libffi to the dockerfiles to satisfy that requirement.
Construct an ffi_cif structure for each unique typemask.
Record the result in a separate hash table for later lookup;
this allows helper_table to stay const.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This will give us both flags and typemask for use later.
We also fix a dumping bug, wherein calls generated for plugins
fail tcg_find_helper and print (null) instead of either a name
or the raw function pointer.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We're going to change how to look up the call flags from a TCGop,
so extract it as a helper.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly be interested in distinguishing pointers
from integers in the helper's declaration, as well as a
true void return. We currently have two parallel 1 bit
fields; merge them and expand to a 3 bit field.
Our current maximum is 7 helper arguments, plus the return
makes 8 * 3 = 24 bits used within the uint32_t typemask.
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Introduce a function to remove everything emitted
since a given point.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
These variables belong to the jit side, not the user side.
Since tcg_init_ctx is no longer used outside of tcg/, move
the declaration to tcg-internal.h.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Shortly, the full code_gen_buffer will only be visible
to region.c, so move in_code_gen_buffer out-of-line.
Move the debugging versions of tcg_splitwx_to_{rx,rw}
to region.c as well, so that the compiler gets to see
the implementation of in_code_gen_buffer.
This leaves exactly one use of in_code_gen_buffer outside
of region.c, in cpu_restore_state. Which, being on the
exception path, is not performance critical.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Finish the divorce of tcg/ from hw/, and do not take
the max cpu value from MachineState; just remember what
we were passed in tcg_init.
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Start removing the include of hw/boards.h from tcg/.
Pass down the max_cpus value from tcg_init_machine,
where we have the MachineState already.
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
