Using a local m68k floatx80_twotox()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-8-laurent@vivier.eu>
Using a local m68k floatx80_etox()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-7-laurent@vivier.eu>
Using a local m68k floatx80_log2()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-6-laurent@vivier.eu>
Using a local m68k floatx80_log10()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-5-laurent@vivier.eu>
Using a local m68k floatx80_logn()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-4-laurent@vivier.eu>
Using a local m68k floatx80_lognp1()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-3-laurent@vivier.eu>
This functions is needed by upcoming m68k softfloat functions.
Source code copied for WinUAE (tag 3500)
(The WinUAE file has been copied from QEMU and has
the QEMU licensing notice)
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180305203910.10391-2-laurent@vivier.eu>
This pull request supersedes ppc-for-2.12-20180302 which had compile
problems with some gcc versions. It also contains a few additional
patches.
Highlights are:
* New Sam460ex machine type
* Yet more fixes related to vcpu id allocation for spapr
* Numerous macio cleanupsr
* Some enhancements to the Spectre/Meltdown fixes for pseries,
allowing use of a better mitigation for indirect branch based
exploits
* New pseries machine types with Spectre/Meltdown mitigations
enabled (stop gap until libvirt and management understands the
machine options)
* A handful of other fixes
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.12-20180306' into staging
ppc patch queue 2018-03-06
This pull request supersedes ppc-for-2.12-20180302 which had compile
problems with some gcc versions. It also contains a few additional
patches.
Highlights are:
* New Sam460ex machine type
* Yet more fixes related to vcpu id allocation for spapr
* Numerous macio cleanupsr
* Some enhancements to the Spectre/Meltdown fixes for pseries,
allowing use of a better mitigation for indirect branch based
exploits
* New pseries machine types with Spectre/Meltdown mitigations
enabled (stop gap until libvirt and management understands the
machine options)
* A handful of other fixes
# gpg: Signature made Tue 06 Mar 2018 04:01:00 GMT
# gpg: using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-2.12-20180306: (30 commits)
PowerPC: Add TS bits into msr_mask
adb: add trace-events for monitoring keyboard/mouse during bus enumeration
PPC: e500: Fix duplicate kernel load and device tree overlap
hw/ppc/spapr,e500: Use new property "stdout-path" for boot console
ppc/spapr-caps: Define the pseries-2.12-sxxm machine type
ppc/spapr-caps: Convert cap-ibs to custom spapr-cap
ppc/spapr-caps: Convert cap-sbbc to custom spapr-cap
ppc/spapr-caps: Convert cap-cfpc to custom spapr-cap
ppc/spapr-caps: Add support for custom spapr_capabilities
target/ppc: Check mask when setting cap_ppc_safe_indirect_branch
macio: remove macio_init() function
macio: move setting of CUDA timebase frequency to macio_common_realize()
mac_newworld: use object link to pass OpenPIC object to macio
openpic: move OpenPIC state and related definitions to openpic.h
openpic: move KVM-specific declarations into separate openpic_kvm.h file
mac_oldworld: use object link to pass heathrow PIC object to macio
macio: move macio related structures and defines into separate macio.h file
heathrow: change heathrow_pic_init() to return the heathrow device
heathrow: convert to trace-events
heathrow: QOMify heathrow PIC
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
During migration, after MSR bits is synced, cpu_post_load() will use
msr_mask to determine which PPC MSR bits will be applied into the target
side. Hardware Transaction Memory(HTM) has been supported since Power8,
but TS0/TS1 bit was not in msr_mask yet. That will prevent target KVM
from loading TM checkpointed values.
This patch adds TS bits into msr_mask for Power8, so that transactional
application can be migrated across qemu.
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is useful to help diagnose problems related to address clashes during
MacOS 9 boot.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This patch fixes an incorrect behavior when the -kernel argument has been
specified without -bios. In this case the kernel was loaded twice. At address
32M as a raw image and afterwards by load_elf/load_uimage at the
corresponding load address. In this case the region for the device tree and
the raw kernel image may overlap.
The patch fixes the behavior by loading the kernel image once with
load_elf/load_uimage and skips loading the raw image.
When here do not use bios_name/size for the kernel and use a more generic
name called payload_name/size.
New in v3: dtb must be stored between kernel and initrd because Linux can
handle the dtb only within the first 64MB. Add a comment to
clarify the behavior.
Signed-off-by: David Engraf <david.engraf@sysgo.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Linux kernel commit 2a9d832cc9aae21ea827520fef635b6c49a06c6d
(of: Add bindings for chosen node, stdout-path) deprecated chosen property
"linux,stdout-path" and "stdout".
Introduce the new property "stdout-path" and continue supporting the older
property to remain compatible with existing/older firmware. This older property
can be deprecated after 5 years.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The sxxm (speculative execution exploit mitigation) machine type is a
variant of the 2.12 machine type with workarounds for speculative
execution vulnerabilities enabled by default.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Convert cap-ibs (indirect branch speculation) to a custom spapr-cap
type.
All tristate caps have now been converted to custom spapr-caps, so
remove the remaining support for them.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Don't explicitly list "?"/help option, trust convention]
[dwg: Fold tristate removal into here, to not break bisect]
[dwg: Fix minor style problems]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
There are currently 2 implemented types of spapr-caps, boolean and
tristate. However there may be a need for caps which don't fit either of
these options. Add a custom capability type for which a list of custom
valid strings can be specified and implement the get/set functions for
these. Also add a field for help text to describe the available options.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[dwg: Change "help" option to "?" matching qemu conventions]
[dwg: Add ATTRIBUTE_UNUSED to avoid breaking bisect]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Check the character and character_mask field when setting
cap_ppc_safe_indirect_branch based on the hypervisor response
to KVM_PPC_GET_CPU_CHAR. Previously the mask field wasn't checked
which was incorrect.
Fixes: 8acc2ae5 (target/ppc/kvm: Add cap_ppc_safe_[cache/bounds_check/indirect_branch])
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Move the remaining comment into macio.c for reference, then remove the
macio_init() function and instantiate the macio devices for both Old World
and New World machines via qdev_init_nofail() directly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This removes the last of the functionality from macio_init() in preparation
for its subsequent removal.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Also switch macio_newworld_realize() over to use it rather than using the pic_mem
memory region directly.
Now that both Old World and New World macio devices no longer make use of the
pic_mem memory region directly, we can remove it.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is to faciliate access to OpenPICState when wiring up the PIC to the macio
controller.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is needed before the next patch because the target-dependent kvm stub
uses the existing kvm_openpic_connect_vcpu() declaration, making it impossible
to move the device-specific declarations into the same file without breaking
ppc-linux-user compilation.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
memory region directly.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This enables the device to be made available during the setup of the Old World
machine. In order to pass back the previous set of IRQs we temporarily introduce
a new pic_irqs parameter until it can be removed.
An additional benefit of this change is that it is also possible to remove the
pic_mem pointer used for macio by accessing the memory region via sysbus.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Now that the ESCC device is instantiated directly via qdev, move it to within
the macio device and wire up the IRQs and memory regions using the sysbus API.
This enables to remove the now-obsolete escc_mem parameter to the macio_init()
function.
(Note this patch also contains small touch-ups to the formatting in
macio_escc_legacy_setup() and ppc_heathrow_init() in order to keep checkpatch
happy)
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The current recommendation is to embed subdevices directly within their container
device, so do this for the DBDMA device.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
VSMT must be set in order to compute VCPU ids. This means that the
following functions must not be called before spapr_set_vsmt_mode()
was called:
- spapr_vcpu_id()
- spapr_is_thread0_in_vcore()
- xics_max_server_number()
We had a recent regression where the latter would be called before VSMT
was set, and broke migration of some old machine types. This patch
adds assert() in the above functions to avoid problems in the future.
Also, since VSMT is really a CPU related thing, spapr_set_vsmt_mode() is
now called from spapr_init_cpus(), just before the first VSMT user.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Some older machine types create more ICPs than needed. We hence
need to register up to xics_max_server_number() dummy ICPs to
accomodate the migration of these machine types.
Recent VSMT rework changed xics_max_server_number() to return
DIV_ROUND_UP(max_cpus * spapr->vsmt, smp_threads)
instead of
DIV_ROUND_UP(max_cpus * kvmppc_smt_threads(), smp_threads);
The change is okay but it requires spapr->vsmt to be set, which
isn't the case with the current code. This causes the formula to
return zero and we don't create dummy ICPs. This breaks migration
of older guests as reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=1549087
The dummy ICP workaround doesn't really have a dependency on XICS
itself. But it does depend on proper VCPU id numbering and it must
be applied before creating vCPUs (ie, creating real ICPs). So this
patch moves the workaround to spapr_init_cpus(), which already
assumes VSMT to be set.
Fixes: 72194664c8 ("spapr: use spapr->vsmt to compute VCPU ids")
Reported-by: Lukas Doktor <ldoktor@redhat.com>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add emulation of aCube Sam460ex board based on AMCC 460EX embedded SoC.
This is not a complete implementation yet with a lot of components
still missing but enough for the U-Boot firmware to start and to boot
a Linux kernel or AROS.
Signed-off-by: François Revol <revol@free.fr>
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This is the PCIX controller found in newer 440 core SoCs e.g. the
AMMC 460EX. The device tree refers to this as plb-pcix compared to
the plb-pci controller in older 440 SoCs.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
[dwg: Remove hwaddr from trace-events, that doesn't work with some
trace backends]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Commit 5d0fb1508e "spapr: consolidate the VCPU id numbering logic
in a single place" introduced a helper to detect thread0 of a virtual
core based on its VCPU id. This is used to create CPU core nodes in
the DT, but it is broken in TCG.
$ qemu-system-ppc64 -nographic -accel tcg -machine dumpdtb=dtb.bin \
-smp cores=16,maxcpus=16,threads=1
$ dtc -f -O dts dtb.bin | grep POWER8
PowerPC,POWER8@0 {
PowerPC,POWER8@8 {
instead of the expected 16 cores that we get with KVM:
$ dtc -f -O dts dtb.bin | grep POWER8
PowerPC,POWER8@0 {
PowerPC,POWER8@8 {
PowerPC,POWER8@10 {
PowerPC,POWER8@18 {
PowerPC,POWER8@20 {
PowerPC,POWER8@28 {
PowerPC,POWER8@30 {
PowerPC,POWER8@38 {
PowerPC,POWER8@40 {
PowerPC,POWER8@48 {
PowerPC,POWER8@50 {
PowerPC,POWER8@58 {
PowerPC,POWER8@60 {
PowerPC,POWER8@68 {
PowerPC,POWER8@70 {
PowerPC,POWER8@78 {
This happens because spapr_get_vcpu_id() maps VCPU ids to
cs->cpu_index in TCG mode. This confuses the code in
spapr_is_thread0_in_vcore(), since it assumes thread0 VCPU
ids to have a spapr->vsmt spacing.
spapr_get_vcpu_id(cpu) % spapr->vsmt == 0
Actually, there's no real reason to expose cs->cpu_index instead
of the VCPU id, since we also generate it with TCG. Also we already
set it explicitly in spapr_set_vcpu_id(), so there's no real reason
either to call kvm_arch_vcpu_id() with KVM.
This patch unifies spapr_get_vcpu_id() to always return the computed
VCPU id both in TCG and KVM. This is one step forward towards KVM<->TCG
migration.
Fixes: 5d0fb1508e
Reported-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Mostly patches that are only indirectly related to the block layer, but I've
reviewed them and there is no maintainer.
-----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Pull request
Mostly patches that are only indirectly related to the block layer, but I've
reviewed them and there is no maintainer.
# gpg: Signature made Mon 05 Mar 2018 09:39:50 GMT
# gpg: using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/block-pull-request:
README: Document 'git-publish' workflow
Add a git-publish configuration file
tests/libqos: Check for valid dev pointer when looking for PCI devices
util/uri.c: wrap single statement blocks with braces {}
util/uri.c: remove brackets that wrap `return` statement's content.
util/uri.c: Coding style check, Only whitespace involved
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v1
iQEcBAABAgAGBQJanLRTAAoJEO8Ells5jWIRAxsH/3wX62o+msLjJHakjcu2OTMG
vdhnB8GfjC5HgMYbovG7TJ95KXg7VRodwru9zgJheTK7DG8fG0nFRuzr8L2tSAph
3s0YTFYDXJ6MBYD//ubdX+jNnchIvMlTX6yheAzcXvQb+nCcN2efN0XpSlGR+g4D
wGi1lWKurGEJE6RUfYPpbbUkjXjbbKyclE0RL+WBmmyruerXI8OxuXQ3GuHK75fb
cZLiToyP9+qnnDyT4lceG5vGRjYLtL8t1nB01M4UTr+tlCkMMsoOjufzGB/CDUdm
oGi1OuKRw06xTLroUJ/uiwSKQH6dMbrv6sLvk92dHnL9k2ZAjv2bVAgz8eAG7o0=
=pPIZ
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Mon 05 Mar 2018 03:06:59 GMT
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
tap: setting error appropriately when calling net_init_tap_one()
hw/net: Remove unnecessary header includes
net: Add a new convenience option "--nic" to configure default/on-board NICs
net: Remove the deprecated 'host_net_add' and 'host_net_remove' HMP commands
net: Remove the deprecated way of dumping network packets
net: Make net_client_init() static
net: Only show vhost-user in the help text if CONFIG_POSIX is defined
net: List available netdevs with "-netdev help"
net: Move error reporting from net_init_client/netdev to the calling site
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- Markus Armbruster: Modularize generated QAPI code
-----BEGIN PGP SIGNATURE-----
Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
iQEcBAABCAAGBQJamar4AAoJEKeha0olJ0NqaOcH/js0SXjzfny/qNziZ69I4diF
+hYXpO3MB6XkTME32nFgWpvosG11YaWHkfYbhEgGRIBR8OfmdbnLI5k/1jo9xl/5
OWA/PxVvZ50kK7oVFg1MfX+wDrYOL3XRrwv52LVp9l/QqSSMbcHmt8xYhF1Yb7Ij
JAmcGBVZIeY4k4rXvq1r6TR5f4ItyzkJBPUBtaj2PruSmQPOy+LlOCAjMaO3a+pk
aiRcjbIRWodcC5p5eT7GEdbfEpzxB2iVkyI1SUvDuJKAJfDkBvCE3B/vY7SOdw7I
5rZ4wRSxNHeTX/cjtJSftTrrG/DC4nPTMFGgxlv6ElcP70HhWQFAxoJjdjf6HGw=
=oaW2
-----END PGP SIGNATURE-----
Merge remote-tracking branch 'remotes/ericb/tags/pull-qapi-2018-03-01-v4' into staging
qapi patches for 2018-03-01
- Markus Armbruster: Modularize generated QAPI code
# gpg: Signature made Fri 02 Mar 2018 19:50:16 GMT
# gpg: using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg: aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-qapi-2018-03-01-v4: (30 commits)
qapi: Don't create useless directory qapi-generated
Fix up dangling references to qmp-commands.* in comment and doc
qapi: Move qapi-schema.json to qapi/, rename generated files
docs: Correct outdated information on QAPI
docs/devel/writing-qmp-commands: Update for modular QAPI
qapi: Empty out qapi-schema.json
Include less of the generated modular QAPI headers
qapi: Generate separate .h, .c for each module
watchdog: Consolidate QAPI into single file
qapi/common: Fix guardname() for funny filenames
qapi/types qapi/visit: Generate built-in stuff into separate files
qapi: Make code-generating visitors use QAPIGen more
qapi: Rename generated qmp-marshal.c to qmp-commands.c
qapi: Record 'include' directives in intermediate representation
qapi: Generate in source order
qapi: Record 'include' directives in parse tree
qapi: Concentrate QAPISchemaParser.exprs updates in .__init__()
qapi: Lift error reporting from QAPISchema.__init__() to callers
qapi/common: Eliminate QAPISchema.exprs
qapi: Improve include file name reporting in error messages
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
git-publish [1] is a convenient tool to send patches and has been
popular among QEMU developers. Recently it has been made available in
Fedora/Debian official repo.
One nice feature of the tool is a per-project configuration with
profiles, especially in which the cccmd option is a handy method to
create the Cc list.
[1]: https://github.com/stefanha/git-publish
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20180226030326.20219-2-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
dev could be NULL if the PCI device can not be found due to some
reasons, so we must not dereference the pointer in this case.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519713884-2346-1-git-send-email-thuth@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
For this patch, using curly braces to wrap `if` `while` `else` statements,
which only hold single statement. For example:
'''
if (cond)
statement;
'''
to
'''
if (cond) {
statement;
}
'''
And using tricks that compare the disassemblies before and after
code changes, to make sure code logic isn't changed:
'''
git checkout master
make util/uri.o
strip util/uri.o
objdump -Drx util/uri.o > /tmp/uri-master.txt
git checkout cleanupbranch
make util/uri.o
strip util/uri.o
objdump -Drx util/uri.o > /tmp/uri-cleanup.txt
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
only remove brackets that wrap `return` statements' content.
use `perl -pi -e "s/return \((.*?)\);/return \1;/g" util/uri.c`
to remove pattern like this: "return (1);"
Signed-off-by: Su Hang <suhang16@mails.ucas.ac.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519533358-13759-3-git-send-email-suhang16@mails.ucas.ac.cn
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using `clang-format -i util/uri.c` first, then change back few code
manually, to make sure only whitespace involved.
Signed-off-by: Su Hang <suhang16@mails.ucas.ac.cn>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1519533358-13759-2-git-send-email-suhang16@mails.ucas.ac.cn
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
