target/arm: Avoid tcg_const_ptr in disas_simd_zip_trn

It is easy enough to use mov instead of or-with-zero and relying
on the optimizer to fold away the or.  Use an array for the output,
rather than separate tcg_res{l,h} variables.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Avoid tcg_const_* in translate-mve.c

All uses are in the context of an accumulator conditionally
having a zero input.  Split the rda variable to rda_{i,o},
and set rda_i to tcg_constant_foo(0) when required.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Avoid tcg_const_ptr in gen_sve_{ldr,str}

This hides the implicit initialization of a variable.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Improve trans_BFCI

Reorg temporary usage so that we can use tcg_constant_i32.
tcg_gen_deposit_i32 already has a width == 32 special case,
so remove the check here.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Create gen_set_rmode, gen_restore_rmode

Split out common subroutines for handing rounding mode
changes during translation.  Use tcg_constant_i32 and
tcg_temp_new_i32 instead of tcg_const_i32.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Consistently use ARMFPRounding during translation

In preparation for extracting new helpers, ensure that
the rounding mode is represented as ARMFPRounding and
not FloatRoundMode.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Improve arm_rmode_to_sf

Use proper enumeration types for input and output.
Use a const array to perform the mapping, with an
assert that the input is valid.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Handle FPROUNDING_ODD in arm_rmode_to_sf

While this enumerator has been present since the first commit,
it isn't ever used.  The first actual use of round-to-odd came
with SVE, which currently uses float_round_to_odd instead of
the arm-specific enumerator.

Amusingly, the comment about unhandled TIEAWAY has been
out of date since the initial commit of translate-a64.c.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Use rmode >= 0 for need_rmode

Initialize rmode to -1 instead of keeping two variables.
This is already used elsewhere in translate-a64.c.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Replace tcg_const_i64 in tcg-op.c

These three instances got missed in previous conversion.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Avoid tcg_const_i32

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Drop some temp initialization

The temp variables here are always set afterward;
the initialization with a constant was discarded.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Use setcondi instead of explicit allocation

This removes the only use of temp.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Rename t_off10 and use tcg_constant_i32

While temp3 could simply be initialized with tcg_constant_i32,
the renaming makes the purpose clearer.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Split t_n as constant from temp as variable

As required, allocate temp separately.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg/sparc: Avoid tcg_const_tl in gen_edge

Push tcg_constant_tl into the shift argument directly.
Since t1 no longer exists as a temp, replace with lo1,
whose last use was just above.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sh4: Avoid tcg_const_i32

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sh4: Avoid tcg_const_i32 for TAS.B

Since we're assigning to cpu_sr_t in the end,
use that as the intermediate temp as well.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Avoid tcg_const_i64

All uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Avoid tcg_const_i32

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Avoid tcg_const_i32 when new temp needed

These three cases use a constant as first input, and
then overwrite the temp in the output.  Separate them.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Use cpu_psw_z as temp in flags computation

Since PSW_Z = PSW_S, we can move that assignment to the end
and use PSW_Z as a temporary while computing PSW_O.
Use tcg_constant_i32 instead of tcg_const_i32.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Use tcg_gen_abs_i32

Remove the local definition of rx_abs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/ppc: Avoid tcg_const_i64 in do_vector_shift_quad

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/ppc: Split out gen_vx_vmul10

Move the body out of this large macro.
Use tcg_constant_i64.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Avoid tcg_const_* throughout

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Avoid tcg_const_tl in gen_r6_ld

Allocate a separate temp for modification.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Split out gen_lxr

Common subroutine for LDR and LWR.
Use tcg_constant_tl of ~1 instead of tcg_const_tl of 0x..fe.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Split out gen_lxl

Common subroutine for LDL and LWL.
Use tcg_constant_tl instead of tcg_const_tl and t2.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/m68k: Avoid tcg_const_* throughout

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/m68k: Avoid tcg_const_i32 in bfop_reg

Tidy up the whole function, hoisting is_bfffo as a common test
for whether tlen and tofs needed. Use tcg_constant_i32, and load
a separate temporary for mask.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/m68k: Avoid tcg_const_i32 when modified

In several instances, a temp is initialized with a
for use as a constant, and then subsequently used
as an unrelated temp.  Split them.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/i386: Avoid use of tcg_const_* throughout

All uses are strictly read-only.  Most of the obviously so,
as direct arguments to gen_helper_*.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Avoid use of tcg_const_i32 throughout

All uses were read-write, so replace with a new
allocation and initialization.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Avoid tcg_const_i64 in trans_fid_f

Use a C test instead of a pre-processor test for the id.
Use tcg_constant_i64 instead of tcg_const_i64.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/cris: Avoid use of tcg_const_i32 throughout

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/avr: Avoid use of tcg_const_i32 throughout

All remaining uses are strictly read-only.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/avr: Avoid use of tcg_const_i32 in SBIC, SBIS

The use of separate data/port variables is existing
practice elsewhere, e.g. SBI, CBI.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Remove guards around `NB_MMU_MODES`

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-24-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/xtensa: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-23-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/tricore: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-22-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sparc: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-21-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/sh4: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-20-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-19-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/rx: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-18-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/riscv: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-17-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/ppc: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-16-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/openrisc: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-15-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/nios2: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-14-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-13-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/microblaze: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-12-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/m68k: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-11-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/loongarch: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-10-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/i386: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-9-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hppa: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-8-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/hexagon: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-7-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/cris: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-6-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/avr: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-5-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/arm: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-4-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/alpha: Remove `NB_MMU_MODES` define

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-3-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec: Set default `NB_MMU_MODES` to 16

Signed-off-by: Anton Johansson <anjo@rev.ng>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230306175230.7110-2-anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

tcg: Create tcg/tcg-temp-internal.h

Move the tcg_temp_free_* and tcg_temp_ebb_new_* declarations
and inlines to the new header.  These are private to the
implementation, and will prevent tcg_temp_free_* from creeping
back into the guest front ends.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
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>

target/s390x: Remove g_out, g_out2, g_in1, g_in2 from DisasContext

These fields are no longer read, so remove them and the writes.

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Remove assert vs g_in2

These were trying to determine if o->in2 was available for
use as a temporary.  It's better to just allocate a new one.

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Drop tcg_temp_free from translate.c

Translators are no longer required to free tcg temporaries.

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Drop tcg_temp_free from translate_vx.c.inc

Translators are no longer required to free tcg temporaries.

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/s390x: Drop free_compare

Translators are no longer required to free tcg temporaries.
Remove the g1 and g2 members of DisasCompare, as they were
used to track which temps needed to be freed.

Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from vr54xx_translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from tx79_translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from translate_addr_const.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from octeon_translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from nanomips_translate.c.inc

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from mxu_translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from msa_translate.c

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

target/mips: Drop tcg_temp_free from micromips_translate.c.inc

Translators are no longer required to free tcg temporaries.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Merge tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu into staging

Pull request linux-user 20230308-v2

Fix gdt on i386/x86_64
Handle traps on sparc
Add translation for argument of msync
Emulate CLONE_PIDFD flag in clone
handle netlink flag NLA_F_NESTED
fix sockaddr_in6 endianness
Fix brk() to release pages
fill out task state in /proc/self/stat
add support for xtensa FDPIC
Fix unaligned memory access in prlimit64 syscall
add target to host netlink conversions
fix timerfd read endianness conversion
Fix access to /proc/self/exe
Add strace for prlimit64() syscall

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# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu: (28 commits)
  linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64
  linux-user/sparc: Handle tag overflow traps
  linux-user/sparc: Handle floating-point exceptions
  linux-user/sparc: Handle unimplemented flush trap
  linux-user/sparc: Handle coprocessor disabled trap
  linux-user/sparc: Handle privilidged action trap
  linux-user/sparc: Handle priviledged opcode trap
  linux-user/sparc: Handle getcc, setcc, getpsr traps
  linux-user/sparc: Handle division by zero traps
  linux-user/sparc: Handle software breakpoint trap
  linux-user/sparc: Fix sparc64_{get, set}_context traps
  linux-user/sparc: Tidy window spill/fill traps
  linux-user/sparc: Use TT_TRAP for flush windows
  linux-user/sparc: Tidy syscall error return
  linux-user/sparc: Tidy syscall trap
  linux-user: Emulate CLONE_PIDFD flag in clone()
  linux-user: Add translation for argument of msync()
  linux-user: handle netlink flag NLA_F_NESTED
  linux-user: fix sockaddr_in6 endianness
  linux-user: Add strace for prlimit64() syscall
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into staging

Block layer patches

- fuse: Fix fallocate(PUNCH_HOLE) to zero out the range
- qed: remove spurious BDRV_POLL_WHILE()

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# gpg: Signature made Fri 10 Mar 2023 17:54:29 GMT
# gpg:                using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg:                issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* tag 'for-upstream' of https://repo.or.cz/qemu/kevin:
  qed: remove spurious BDRV_POLL_WHILE()
  iotests/308: Add test for 'write -zu'
  block/fuse: Let PUNCH_HOLE write zeroes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Merge tag 'pull-gitdm-100323-1' of https://gitlab.com/stsquad/qemu into staging

gitdm updates for:

  - IBM
  - Facebook
  - Individual contributors
  - Ventana

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# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* tag 'pull-gitdm-100323-1' of https://gitlab.com/stsquad/qemu:
  contrib/gitdm: add Idan to IBM's group map
  contrib/gitdm: Add Facebook the domain map
  contrib/gitdm: add Tsukasa as an individual contributor
  contrib/gitdm: Add Ventana Micro Systems to the domain map
  contrib/gitdm: Add VRULL to the domain map

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

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# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
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# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu: (44 commits)
  ebpf: fix compatibility with libbpf 1.0+
  docs/system/devices/igb: Add igb documentation
  tests/avocado: Add igb test
  igb: Introduce qtest for igb device
  tests/qtest/libqos/e1000e: Export macreg functions
  tests/qtest/e1000e-test: Fabricate ethernet header
  Intrdocue igb device emulation
  e1000: Split header files
  pcie: Introduce pcie_sriov_num_vfs
  net/eth: Introduce EthL4HdrProto
  e1000e: Implement system clock
  net/eth: Report if headers are actually present
  e1000e: Count CRC in Tx statistics
  e1000: Count CRC in Tx statistics
  e1000e: Combine rx traces
  MAINTAINERS: Add e1000e test files
  MAINTAINERS: Add Akihiko Odaki as a e1000e reviewer
  e1000e: Do not assert when MSI-X is disabled later
  hw/net/net_tx_pkt: Check the payload length
  hw/net/net_tx_pkt: Implement TCP segmentation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64

On linux user mode, CPUX86State::gdt::base from Different CPUX86State
Objects have same value, It is incorrect! Every CPUX86State::gdt::base
Must points to independent memory space.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1405
Signed-off-by: fanwenjie <fanwj@mail.ustc.edu.cn>
Message-Id: <4172b90.58b08.18631b77860.Coremail.fanwj@mail.ustc.edu.cn>
[lv: remove unnecessary casts, split overlong line]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle tag overflow traps

This trap is raised by taddcctv and tsubcctv insns.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-16-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle floating-point exceptions

Raise SIGFPE for ieee exceptions.

The other types, such as FSR_FTT_UNIMPFPOP, should not appear,
because we enable normal emulation of missing insns at the
start of sparc_cpu_realizefn().

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-15-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle unimplemented flush trap

For sparc64, TT_UNIMP_FLUSH == TT_ILL_INSN, so this is
already handled.  For sparc32, the kernel uses SKIP_TRAP.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-14-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle coprocessor disabled trap

Since qemu does not implement a sparc coprocessor, all such
instructions raise this trap.  Because of that, we never raise
the coprocessor exception trap, which would be vector 0x28.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-13-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle privilidged action trap

This is raised by using an %asi < 0x80 in user-mode.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-12-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle priviledged opcode trap

For the most part priviledged opcodes are ifdefed out of the
user-only sparc translator, which will then incorrectly produce
illegal opcode traps.  But there are some code paths that
properly raise TT_PRIV_INSN, so we must handle it.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-11-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle getcc, setcc, getpsr traps

These are really only meaningful for sparc32, but they're
still present for backward compatibility for sparc64.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-10-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle division by zero traps

In addition to the hw trap vector, there is a software trap
assigned for older sparc without hw division instructions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-9-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Handle software breakpoint trap

This is 'ta 1' for both v9 and pre-v9.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-8-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Fix sparc64_{get, set}_context traps

These traps are present for sparc64 with ilp32, aka sparc32plus.
Enabling them means adjusting the defines over in signal.c,
and fixing an incorrect usage of abi_ulong when we really meant
the full register, target_ulong.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-7-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Tidy window spill/fill traps

Add some macros to localize the hw difference between v9 and pre-v9.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230216054516.1267305-6-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Use TT_TRAP for flush windows

The v9 and pre-v9 code can be unified with this macro.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230216054516.1267305-5-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Tidy syscall error return

Reduce ifdefs with #define syscall_cc.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-4-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sparc: Tidy syscall trap

Use TT_TRAP.

For sparc32, 0x88 is the "Slowaris" system call, currently BAD_TRAP
in the kernel's ttable_32.S.  For sparc64, 0x110 is tl0_linux32, the
sparc32 trap, now folded into the TARGET_ABI32 case via TT_TRAP.

For sparc64, there does still exist trap 0x111 as tl0_oldlinux64,
which was replaced by 0x16d as tl0_linux64 in 1998.  Since no one
has noticed, don't bother implementing it now.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230216054516.1267305-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Emulate CLONE_PIDFD flag in clone()

Add emulation for the CLONE_PIDFD flag of the clone() syscall.
This flag was added in Linux kernel 5.2.

Successfully tested on a x86-64 Linux host with hppa-linux target.
Can be verified by running the testsuite of the qcoro debian package,
which breaks hard and kills the currently logged-in user without this
patch.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y4XoJCpvUA1JD7Sj@p100>
[lv: define CLONE_PIDFD if it is not]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Add translation for argument of msync()

msync() uses the flags MS_ASYNC, MS_INVALIDATE and MS_SYNC, which differ
between platforms, specifcally on alpha and hppa.

Add a target to host translation for those and wire up a nicer strace
output.

This fixes the testsuite of the macaulay2 debian package with a hppa-linux
guest on a x86-64 host.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <Y5rMcts4qe15RaVN@p100>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: handle netlink flag NLA_F_NESTED

Newer kernel versions require this flag to be present contrary to older
ones. Depending on the libnl version it is added or not.

Typically when using rtnl_link_inet6_set_addr_gen_mode, the netlink
packet generated may contain the following attribute:

with libnl 3.4

  {nla_len=16, nla_type=IFLA_AF_SPEC},
  [
    {nla_len=12, nla_type=AF_INET6},
    [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE]
  ]

with libnl 3.7

  {nla_len=16, nla_type=NLA_F_NESTED|IFLA_AF_SPEC},
  [
    {nla_len=12, nla_type=NLA_F_NESTED|AF_INET6},
    [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE]]
  ]

Masking the type is likely needed in other places. Only the above cases
are implemented in this patch.

Signed-off-by: Mathis Marion <mathis.marion@silabs.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230307154256.101528-3-Mathis.Marion@silabs.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: fix sockaddr_in6 endianness

The sin6_scope_id field uses the host byte order, so there is a
conversion to be made when host and target endianness differ.

Signed-off-by: Mathis Marion <mathis.marion@silabs.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230307154256.101528-2-Mathis.Marion@silabs.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user: Add strace for prlimit64() syscall

Add proper prlimit64() strace output.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221222190639.124078-1-deller@gmx.de>
[lvivier: use print_raw_param64()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>