When the emulation stops with a hard exception it's very useful for
debugging purposes to dump the current guest memory layout (for an
example see /proc/self/maps) beside the CPU registers.
The open_self_maps() function provides such a memory dump, but since
it's located in the syscall.c file, various changes (add #includes, make
this function externally visible, ...) are needed to be able to call it
from the existing EXCP_DUMP() macro.
This patch takes another approach by re-defining EXCP_DUMP() to call
target_exception_dump(), which is in syscall.c, consolidates the log
print functions and allows to add the call to dump the memory layout.
Beside a reduced code footprint, this approach keeps the changes across
the various callers minimal, and keeps EXCP_DUMP() highlighted as
important macro/function.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <Y1bzAWbw07WBKPxw@p100>
[lv: remove pc declaration and setting]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Highlight of this PR is Linus Heckemann's GHashTable patch which
brings massive general performance improvements of 9p server
somewhere between factor 6 .. 12.
* Bin Meng's g_mkdir patch is a preparatory patch for upcoming
Windows host support of 9p server.
* The rest of the patches in this PR are 9p test code restructuring
and refactoring changes to improve readability and to ease
maintenance of 9p test code on the long-term.
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Merge tag 'pull-9p-20221024' of https://github.com/cschoenebeck/qemu into staging
9pfs: performance, Windows host prep, tests restructure
* Highlight of this PR is Linus Heckemann's GHashTable patch which
brings massive general performance improvements of 9p server
somewhere between factor 6 .. 12.
* Bin Meng's g_mkdir patch is a preparatory patch for upcoming
Windows host support of 9p server.
* The rest of the patches in this PR are 9p test code restructuring
and refactoring changes to improve readability and to ease
maintenance of 9p test code on the long-term.
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# gpg: Signature made Mon 24 Oct 2022 06:54:07 EDT
# gpg: using RSA key 96D8D110CF7AF8084F88590134C2B58765A47395
# gpg: issuer "qemu_oss@crudebyte.com"
# gpg: Good signature from "Christian Schoenebeck <qemu_oss@crudebyte.com>" [unknown]
# gpg: WARNING: The key's User ID is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: ECAB 1A45 4014 1413 BA38 4926 30DB 47C3 A012 D5F4
# Subkey fingerprint: 96D8 D110 CF7A F808 4F88 5901 34C2 B587 65A4 7395
* tag 'pull-9p-20221024' of https://github.com/cschoenebeck/qemu: (23 commits)
tests/9p: remove unnecessary g_strdup() calls
tests/9p: merge v9fs_tunlinkat() and do_unlinkat()
tests/9p: merge v9fs_tlink() and do_hardlink()
tests/9p: merge v9fs_tsymlink() and do_symlink()
tests/9p: merge v9fs_tlcreate() and do_lcreate()
tests/9p: merge v9fs_tmkdir() and do_mkdir()
tests/9p: convert v9fs_tflush() to declarative arguments
tests/9p: simplify callers of twrite()
tests/9p: convert v9fs_twrite() to declarative arguments
tests/9p: simplify callers of tlopen()
tests/9p: convert v9fs_tlopen() to declarative arguments
tests/9p: simplify callers of treaddir()
tests/9p: convert v9fs_treaddir() to declarative arguments
tests/9p: simplify callers of tgetattr()
tests/9p: convert v9fs_tgetattr() to declarative arguments
tests/9p: simplify callers of tattach()
tests/9p: merge v9fs_tattach(), do_attach(), do_attach_rqid()
tests/9p: merge v9fs_tversion() and do_version()
tests/9p: simplify callers of twalk()
tests/9p: merge *walk*() functions
...
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This is a leftover from before the recent function merge and
refactoring patches:
As these functions do not return control to the caller in
between, it is not necessary to duplicate strings passed to them.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <0f80141cde3904ed0591354059da49d1d60bcdbc.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tunlinkat() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <1dea593edd464908d92501933c068388c01f1744.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tlink() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <cb4d42203e1e4e6027df4924bbe4bdbc002f668b.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tsymlink() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <563f3ad04fe596ce0ae1e2654d1d08237f18c830.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tlcreate() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <4c01b2caa5f5b54a2020fc92701deadd2abf0571.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 2 functions into a single function
v9fs_tmkdir() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <b87b2c972921df980440ff5b2d3e6bb8163d6551.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tflush().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <91b7b154298c500d100b05137146c2905c3acdec.1664917004.git.qemu_oss@crudebyte.com>
Now as twrite() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <7f280ec6a1f9d8afed46567a796562c4dc28afa9.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_twrite().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <be0326e2d9ab66f68c06b1766ddf103849d570b4.1664917004.git.qemu_oss@crudebyte.com>
Now as tlopen() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <f74b6153e079fc7a340e5cb575ee32e0fe1e0ae6.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tlopen().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <765ab515353c56f88f0a163631f626a44e9565d6.1664917004.git.qemu_oss@crudebyte.com>
Now as treaddir() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <7cec6f2c7011a481806c34908893b7282702a7a6.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_treaddir().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <a66aae4ceb19ec12d245b8c7f33a639584c8e272.1664917004.git.qemu_oss@crudebyte.com>
Now as tgetattr() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <60c6a083f320b86f3172951445df7bbc895932e2.1664917004.git.qemu_oss@crudebyte.com>
Use declarative function arguments for function v9fs_tgetattr().
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <d340a91be96fbfecfb8dacdd7558223b3c0d0e2c.1664917004.git.qemu_oss@crudebyte.com>
Now as tattach() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <9b50e5b89a0072e84a9191d18c19a53546a28bba.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify those 3 functions into a single function
v9fs_tattach() by using a declarative function arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <a6756b30bf2a1b25729c5bbabd1c9534a8f20d6f.1664917004.git.qemu_oss@crudebyte.com>
As with previous patches, unify functions v9fs_tversion() and do_version()
into a single function v9fs_tversion() by using a declarative function
arguments approach.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <2d253491aaffd267ec295f056dda47456692cd0c.1664917004.git.qemu_oss@crudebyte.com>
Now as twalk() is using a declarative approach, simplify the
code of callers of this function.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <8b9d3c656ad43b6c953d6bdacd8d9f4c8e599b2a.1664917004.git.qemu_oss@crudebyte.com>
Introduce declarative function calls.
There are currently 4 different functions for sending a 9p 'Twalk'
request: v9fs_twalk(), do_walk(), do_walk_rqids() and
do_walk_expect_error(). They are all doing the same thing, just in a
slightly different way and with slightly different function arguments.
Merge those 4 functions into a single function by using a struct for
function call arguments and use designated initializers when calling
this function to turn usage into a declarative approach, which is
better readable and easier to maintain.
Also move private functions genfid(), split() and split_free() from
virtio-9p-test.c to virtio-9p-client.c.
Based-on: <E1odrya-0004Fv-97@lizzy.crudebyte.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <607969dbfbc63c1be008df9131133711b046e979.1664917004.git.qemu_oss@crudebyte.com>
The previous implementation would iterate over the fid table for
lookup operations, resulting in an operation with O(n) complexity on
the number of open files and poor cache locality -- for every open,
stat, read, write, etc operation.
This change uses a hashtable for this instead, significantly improving
the performance of the 9p filesystem. The runtime of NixOS's simple
installer test, which copies ~122k files totalling ~1.8GiB from 9p,
decreased by a factor of about 10.
Signed-off-by: Linus Heckemann <git@sphalerite.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
[CS: - Retain BUG_ON(f->clunked) in get_fid().
- Add TODO comment in clunk_fid(). ]
Message-Id: <20221004104121.713689-1-git@sphalerite.org>
[CS: - Drop unnecessary goto and out: label. ]
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
This patch is pure refactoring, it does not change behaviour.
virtio-9p-test.c grew to 1657 lines. Let's split this file up between
actual 9p test cases vs. 9p test client, to make it easier to
concentrate on the actual 9p tests.
Move the 9p test client code to a new unit virtio-9p-client.c, which
are basically all functions and types prefixed with v9fs_* already.
Note that some client wrapper functions (do_*) are preserved in
virtio-9p-test.c, simply because these wrapper functions are going to
be wiped with subsequent patches anyway.
As the global QGuestAllocator variable is moved to virtio-9p-client.c,
add a new function v9fs_set_allocator() to be used by virtio-9p-test.c
instead of fiddling with a global variable across units and libraries.
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <E1odrya-0004Fv-97@lizzy.crudebyte.com>
Use g_mkdir() to create a directory on all platforms.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20220927110632.1973965-27-bmeng.cn@gmail.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Rather than poking directly into RAM, add the bootinfo block as a proper
ROM, so that it's restored when rebooting the system. This way, if the
guest corrupts any of the bootinfo items, but then tries to reboot,
it'll still be restored back to normal as expected.
Then, since the RNG seed needs to be fresh on each boot, regenerate the
RNG seed in the ROM when reseting the CPU.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-Id: <20221023191340.36238-1-Jason@zx2c4.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The only issue with FMA instructions is that there are _a lot_ of them (30
opcodes, each of which comes in up to 4 versions depending on VEX.W and
VEX.L; a total of 96 possibilities). However, they can be implement with
only 6 helpers, two for scalar operations and four for packed operations.
(Scalar versions do not do any merging; they only affect the bottom 32
or 64 bits of the output operand. Therefore, there is no separate XMM
and YMM of the scalar helpers).
First, we can reduce the number of helpers to one third by passing four
operands (one output and three inputs); the reordering of which operands
go to the multiply and which go to the add is done in emit.c.
Second, the different instructions also dispatch to the same softfloat
function, so the flags for float32_muladd and float64_muladd are passed
in the helper as int arguments, with a little extra complication to
handle FMADDSUB and FMSUBADD.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Following a change on the kernel side (see link), pass BI_RNG_SEED
instead of BI_VIRT_RNG_SEED. This should have no impact on
compatibility, as there will simply be no effect if it's an old kernel,
which is how things have always been. We then use this as an opportunity
to add this to q800, since now we can, which is a nice improvement.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Laurent Vivier <laurent@vivier.eu>
Link: https://lore.kernel.org/lkml/20220923170340.4099226-3-Jason@zx2c4.com/
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Message-Id: <20220926113900.1256630-1-Jason@zx2c4.com>
[lv: s/^I/ /g]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
User space has been preferring this syscall for a while, due to its
closer match with C semantics, and newer platforms such as LoongArch
apparently have libc implementations that don't fallback to faccessat
so normal access checks are failing without the emulation in place.
Tested by successfully emerging several packages within a Gentoo loong
stage3 chroot, emulated on amd64 with help of static qemu-loongarch64.
Reported-by: Andreas K. Hüttel <dilfridge@gentoo.org>
Signed-off-by: WANG Xuerui <xen0n@gentoo.org>
Message-Id: <20221009060813.2289077-1-xen0n@gentoo.org>
[lv: removing defined(__NR_faccessat2) in syscall.c,
adding defined(TARGET_NR_faccessat2) on print_faccessat()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
These ioctls have been defined in linux/fs.h for a long time
* BLKGETSIZE64 - <2.6.12 (linux.git epoch)
* BLKDISCARD - 2.6.28 (d30a2605be9d5132d95944916e8f578fcfe4f976)
* BLKIOMIN - 2.6.32 (ac481c20ef8f6c6f2be75d581863f40c43874ef7)
* BLKIOOPT - 2.6.32 (ac481c20ef8f6c6f2be75d581863f40c43874ef7)
* BLKALIGNOFF - 2.6.32 (ac481c20ef8f6c6f2be75d581863f40c43874ef7)
* BLKPBSZGET - 2.6.32 (ac481c20ef8f6c6f2be75d581863f40c43874ef7)
* BLKDISCARDZEROES - 2.6.32 (98262f2762f0067375f83824d81ea929e37e6bfe)
* BLKSECDISCARD - 2.6.36 (8d57a98ccd0b4489003473979da8f5a1363ba7a3)
* BLKROTATIONAL - 3.2 (ef00f59c95fe6e002e7c6e3663cdea65e253f4cc)
* BLKZEROOUT - 3.6 (66ba32dc167202c3cf8c86806581a9393ec7f488)
* FIBMAP - <2.6.12 (linux.git epoch)
* FIGETBSZ - <2.6.12 (linux.git epoch)
and when building with latest glibc, we'll see compat definitions
in syscall.c anyway thanks to the previous patch. Thus we can
assume they always exist and remove the conditional checks.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221004093206.652431-3-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
GLibc changes prevent us from including linux/fs.h anymore,
and we previously adjusted to this in
commit 3cd3df2a95
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Tue Aug 2 12:41:34 2022 -0400
linux-user: fix compat with glibc >= 2.36 sys/mount.h
That change required adding compat ioctl definitions on the
QEMU side for any ioctls that we would otherwise obtain
from linux/fs.h. This commit adds more that were initially
missed, due to their usage being conditionalized in QEMU.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20221004093206.652431-2-berrange@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
AT_EXECFD gives access to the binary file even if
it is not readable (only executable).
Moreover it can be opened with flags and mode that are not the ones
provided by do_openat() caller.
And it is not available because loader_exec() has closed it.
To avoid that, use only safe_openat() with the exec_path.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220927124357.688536-3-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
If path is /proc/self/exe, use the executable path
provided by exec_path.
Don't use execfd as it is closed by loader_exec() and otherwise
will survive to the exec() syscall and be usable child process.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220927124357.688536-2-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
In commit 80f0fe3a85 ("linux-user: Fix syscall parameter handling for
MIPS n32") the ABI problem regarding offset64 on MIPS n32 was fixed,
but still some cases remain where the n32 is incorrectly treated as any
other 32-bit ABI that passes 64-bit arguments in pairs of GPRs. Fix by
excluding TARGET_ABI_MIPSN32 from various TARGET_ABI_BITS == 32 checks.
Closes: https://gitlab.com/qemu-project/qemu/-/issues/1238
Signed-off-by: WANG Xuerui <xen0n@gentoo.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Andreas K. Hüttel <dilfridge@gentoo.org>
Cc: Joshua Kinard <kumba@gentoo.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Andreas K. Huettel <dilfridge@gentoo.org>
Message-Id: <20221006085500.290341-1-xen0n@gentoo.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
F16C only consists of two instructions, which are a bit peculiar
nevertheless.
First, they access only the low half of an YMM or XMM register for the
packed-half operand; the exact size still depends on the VEX.L flag.
This is similar to the existing avx_movx flag, but not exactly because
avx_movx is hardcoded to affect operand 2. To this end I added a "ph"
format name; it's possible to reuse this approach for the VPMOVSX and
VPMOVZX instructions, though that would also require adding two more
formats for the low-quarter and low-eighth of an operand.
Second, VCVTPS2PH is somewhat weird because it *stores* the result of
the instruction into memory rather than loading it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
VROUND, FSTCW and STMXCSR all have to perform the same conversion from
x86 rounding modes to softfloat constants. Since the ISA is consistent
on the meaning of the two-bit rounding modes, extract the common code
into a wrapper for set_float_rounding_mode.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If the destination is a memory register, op->n is -1. Going through
tcg_gen_gvec_dup_imm path is both useless (the value has been stored
by the gen_* function already) and wrong because of the out-of-bounds
access.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently the microdrive code uses device_legacy_reset() to reset
itself, and has its reset method call reset on the IDE bus as the
last thing it does. Switch to using device_cold_reset().
The only concrete microdrive device is the TYPE_DSCM1XXXX; it is not
command-line pluggable, so it is used only by the old pxa2xx Arm
boards 'akita', 'borzoi', 'spitz', 'terrier' and 'tosa'.
You might think that this would result in the IDE bus being
reset automatically, but it does not, because the IDEBus type
does not set the BusClass::reset method. Instead the controller
must explicitly call ide_bus_reset(). We therefore leave that
call in md_reset().
Note also that because the PCMCIA card device is a direct subclass of
TYPE_DEVICE and we don't model the PCMCIA controller-to-card
interface as a qbus, PCMCIA cards are not on any qbus and so they
don't get reset when the system is reset. The reset only happens via
the dscm1xxxx_attach() and dscm1xxxx_detach() functions during
machine creation.
Because our aim here is merely to try to get rid of calls to the
device_legacy_reset() function, we leave these other dubious
reset-related issues alone. (They all stem from this code being
absolutely ancient.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20221013174042.1602926-1-peter.maydell@linaro.org
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-10-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Since we always pass dc->pc_curr, fold the arithmetic to zero displacement.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on absolute values.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for TARGET_TB_PCREL, reduce reliance on
absolute values by passing in pc difference.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221020030641.2066807-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Stefan Hajnoczi