From: "Alex Bennée" <alex.bennee@linaro.org>
To: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: peter.maydell@linaro.org, "Thomas Huth" <thuth@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Wainer dos Santos Moschetta" <wainersm@redhat.com>,
qemu-devel@nongnu.org, "Willian Rampazzo" <willianr@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Alexandre Iooss" <erdnaxe@crans.org>,
"Mahmoud Mandour" <ma.mandourr@gmail.com>
Subject: Re: [PULL 32/40] tcg/plugins: enable by default for most TCG builds
Date: Fri, 16 Jul 2021 14:16:01 +0100 [thread overview]
Message-ID: <87sg0etn47.fsf@linaro.org> (raw)
In-Reply-To: <a3f05bc9-808d-0572-3e17-df9cf9418b4e@de.ibm.com>
Christian Borntraeger <borntraeger@de.ibm.com> writes:
> On 16.07.21 08:54, Christian Borntraeger wrote:
>> On 12.07.21 14:26, Alex Bennée wrote:
>>> Aside from a minor bloat to file size the ability to have TCG plugins
>>> has no real impact on performance unless a plugin is actively loaded.
>>> Even then the libempty.so plugin shows only a minor degradation in
>>> performance caused by the extra book keeping the TCG has to do to keep
>>> track of instructions. As it's a useful feature lets just enable it by
>>> default and reduce our testing matrix a little.
>>>
>>> We need to move our linker testing earlier so we can be sure we can
>>> enable the loader module required. As we have ruled out static &
>>> plugins in an earlier patch we can also reduce the indent a little.
>>>
>>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>>> Reviewed-by: Thomas Huth <thuth@redhat.com>
>>> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
>>> Cc: Paolo Bonzini <pbonzini@redhat.com>
>>> Message-Id: <20210709143005.1554-33-alex.bennee@linaro.org>
>> I cant reproduce it manually but in our build regression this fails
>> with
>
> I can now reproduce when adding
> --extra-ldflags="-Wl,--build-id -pie -Wl,-z,relro -Wl,-z,now"
> to the configure script (on "20.04.2 LTS)
Whats your full configure line? And this is on the s390x-cloud machine?
--
Alex Bennée
next prev parent reply other threads:[~2021-07-16 13:17 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-12 12:26 [PULL for 6.1 00/40] testing and plugin updates Alex Bennée
2021-07-12 12:26 ` [PULL 01/40] Jobs based on custom runners: documentation and configuration placeholder Alex Bennée
2021-07-12 12:26 ` [PULL 02/40] Jobs based on custom runners: build environment docs and playbook Alex Bennée
2021-07-12 12:26 ` [PULL 03/40] Jobs based on custom runners: docs and gitlab-runner setup playbook Alex Bennée
2021-07-12 12:26 ` [PULL 04/40] Jobs based on custom runners: add job definitions for QEMU's machines Alex Bennée
2021-07-12 12:26 ` [PULL 05/40] tests/tcg: also disable the signals test for plugins Alex Bennée
2021-07-12 12:26 ` [PULL 06/40] build: validate that system capstone works before using it Alex Bennée
2021-07-12 12:26 ` [PULL 07/40] gitlab: support for FreeBSD 12, 13 and macOS 11 via cirrus-run Alex Bennée
2021-07-12 12:26 ` [PULL 08/40] cirrus: delete FreeBSD and macOS jobs Alex Bennée
2021-07-12 12:26 ` [PULL 09/40] hw/usb/ccid: remove references to NSS Alex Bennée
2021-07-12 12:26 ` [PULL 10/40] tests/docker: don't use BUILDKIT in GitLab either Alex Bennée
2021-07-12 12:26 ` [PULL 11/40] tests/docker: use project specific container registries Alex Bennée
2021-07-12 12:26 ` [PULL 12/40] tests/docker: use explicit docker.io registry Alex Bennée
2021-07-12 12:26 ` [PULL 13/40] tests/docker: remove FEATURES env var from templates Alex Bennée
2021-07-12 12:26 ` [PULL 14/40] tests/docker: fix sorting in package lists Alex Bennée
2021-07-12 12:26 ` [PULL 15/40] tests/docker: fix mistakes in centos " Alex Bennée
2021-07-12 12:26 ` [PULL 16/40] tests/docker: fix mistakes in fedora package list Alex Bennée
2021-07-12 12:26 ` [PULL 17/40] tests/docker: fix mistakes in ubuntu package lists Alex Bennée
2021-07-12 12:26 ` [PULL 18/40] tests/docker: remove mingw packages from Fedora Alex Bennée
2021-07-12 12:26 ` [PULL 19/40] tests/docker: expand centos8 package list Alex Bennée
2021-07-12 12:26 ` [PULL 20/40] tests/docker: expand fedora " Alex Bennée
2021-07-12 12:26 ` [PULL 21/40] tests/docker: expand ubuntu1804 " Alex Bennée
2021-07-12 12:26 ` [PULL 22/40] tests/docker: expand ubuntu2004 " Alex Bennée
2021-07-12 12:26 ` [PULL 23/40] tests/docker: expand opensuse-leap " Alex Bennée
2021-07-12 12:26 ` [PULL 24/40] tests/vm: update NetBSD to 9.2 Alex Bennée
2021-07-12 12:26 ` [PULL 25/40] tests/vm: update openbsd to release 6.9 Alex Bennée
2021-07-12 12:26 ` [PULL 26/40] tests/tcg: make test-mmap a little less aggressive Alex Bennée
2021-07-12 12:26 ` [PULL 27/40] plugins: fix-up handling of internal hostaddr for 32 bit Alex Bennée
2021-07-12 12:26 ` [PULL 28/40] meson.build: move TCG plugin summary output Alex Bennée
2021-07-12 12:26 ` [PULL 29/40] configure: don't allow plugins to be enabled for a non-TCG build Alex Bennée
2021-07-12 12:26 ` [PULL 30/40] configure: add an explicit static and plugins check Alex Bennée
2021-07-12 12:26 ` [PULL 31/40] configure: stop user enabling plugins on Windows for now Alex Bennée
2021-07-12 12:26 ` [PULL 32/40] tcg/plugins: enable by default for most TCG builds Alex Bennée
2021-07-16 6:54 ` Christian Borntraeger
2021-07-16 11:28 ` Christian Borntraeger
2021-07-16 13:16 ` Alex Bennée [this message]
2021-07-16 14:51 ` Richard Henderson
2021-07-16 14:58 ` Christian Borntraeger
2021-07-16 15:31 ` Christian Borntraeger
2021-07-16 16:02 ` Richard Henderson
2021-07-12 12:26 ` [PULL 33/40] contrib/plugins: enable -Wall for building plugins Alex Bennée
2021-07-12 12:26 ` [PULL 34/40] contrib/plugins: add execlog to log instruction execution and memory access Alex Bennée
2021-07-12 12:26 ` [PULL 35/40] docs/devel: tcg-plugins: add execlog plugin description Alex Bennée
2021-07-12 12:26 ` [PULL 36/40] plugins: Added a new cache modelling plugin Alex Bennée
2021-07-12 12:26 ` [PULL 37/40] plugins/cache: Enable cache parameterization Alex Bennée
2021-07-12 12:26 ` [PULL 38/40] plugins/cache: Added FIFO and LRU eviction policies Alex Bennée
2021-07-12 12:26 ` [PULL 39/40] docs/devel: Added cache plugin to the plugins docs Alex Bennée
2021-07-12 12:26 ` [PULL 40/40] MAINTAINERS: Added myself as a reviewer for TCG Plugins Alex Bennée
2021-07-12 12:56 ` [PULL for 6.1 00/40] testing and plugin updates Alex Bennée
2021-07-12 14:51 ` Alex Bennée
2021-07-12 22:19 ` Alex Bennée
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