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Currently VMO in Zircon create using the zx_vmo_create is resizable
by default, but we'll be changing this in the future, requiring an
explicit flag to make the VMO resizable.
Prepare for this change by passing ZX_VMO_RESIZABLE option to all
zx_vmo_create calls that need resizable VMO.
Differential Revision: https://reviews.llvm.org/D61450
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359803 91177308-0d34-0410-b5e6-96231b3b80d8
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`COMPILER_RT_UNITTEST_LINK_FLAGS` is dropped in many places, unlike
`COMPILER_RT_UNITTEST_CFLAGS`. This patch attempts to remove that
inconsistency.
Previously reviewed as part of D58951.
Reviewers: sfertile, peter.smith, pzheng, phosek, Hahnfeld, nemanjai, jasonliu
Reviewed By: sfertile
Subscribers: jsji, kubamracek, dberris, mgorny, delcypher, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D60143
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359733 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This CL implements the memory reclaiming function `releaseFreeMemoryToOS`
and its associated classes. Most of this code was originally written by
Aleksey for the Primary64 in sanitizer_common, and I made some changes to
be able to implement 32-bit reclaiming as well. The code has be restructured
a bit to accomodate for freelist of batches instead of the freearray used
in the current sanitizer_common code.
Reviewers: eugenis, vitalybuka, morehouse, hctim
Reviewed By: vitalybuka
Subscribers: srhines, mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D61214
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359567 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
As with the sanitizer_common allocator, the SCM allows for efficient
mapping between sizes and size-classes, table-free.
It doesn't depart significantly from the original, except that we
allow the use of size-class 0 for other purposes (as opposed to
chunks of size 0). The Primary will use it to hold TransferBatches.
Reviewers: vitalybuka, eugenis, hctim, morehouse
Reviewed By: vitalybuka
Subscribers: srhines, mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D61088
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359199 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The Secondary allocator wraps the platform allocation primitives. It is
meant to be used for larger sizes that the Primary can't fullfill, as
it will be slower, and sizes are multiple of the system page size.
This also changes some of the existing code, notably the opaque
platform data being passed to the platform specific functions: we can
shave a couple of syscalls on Fuchsia by storing additional data (this
addresses a TODO).
Reviewers: eugenis, vitalybuka, hctim, morehouse
Reviewed By: morehouse
Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D60787
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359097 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
As with other Sanitizers, and the current version of Scudo, we can
provide flags in differents way: at compile time, through a weak
function, through an environment variable.
This change adds support for the configuration flags, and the string
parsers. Those are fairly similar to the sanitizer_common way of doing
things.
Reviewers: morehouse, hctim, vitalybuka
Reviewed By: morehouse, vitalybuka
Subscribers: mgorny, delcypher, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D59597
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@358011 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This change adds fatal error messages for various error conditions that
will be added later in the code.
This also addresses a `TODO` now that we have `reportCheckFailed` (which
lead me to notice a few variables that were not cased properly so I
changed that as well).
Reviewers: morehouse, hctim, vitalybuka
Reviewed By: morehouse, hctim, vitalybuka
Subscribers: mgorny, delcypher, jfb, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D59551
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@356556 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Add some string utility functions, notably to format strings, get
lengths, convert a string to a number. Those functions will be
used in reports and flags (coming up next). They were mostly borrowed
from sanitizer_common.
Make use of the string length function in a couple places in the
platform code that was checked in with inlined version of it.
Add some tests.
Reviewers: morehouse, eugenis, vitalybuka, hctim
Reviewed By: morehouse, vitalybuka
Subscribers: mgorny, delcypher, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D59262
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@356457 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This CL implements the checksumming functions. This departs from the
current Scudo code in one aspect: the software version is no longer
CRC32 but a BSD checksum. This is because the software CRC32 was too
impactful in terms of performances, the BSD checksum has no array
lookup which is better (and saves 1KB of data).
As with the current version, we only flip the CRC compiler flag for
a single compilation unit by default, to allow for a library compiled
with HW CRC32 to work on a system without HW CRC32.
There is some platform & hardware specific code in those files, but
since departs from a mere platform split, it felt right to me to have
it that way.
Reviewers: morehouse, eugenis, vitalybuka, hctim, mcgrathr
Reviewed By: morehouse
Subscribers: mgorny, delcypher, jfb, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D59116
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355923 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This adds simple local & global stats classes to be used by the Primary
and Secondary, and associated test. Note that we don't need the strict
atomicity of the addition & subtraction (as is in sanitizer_common) so
we just use load & store.
Reviewers: morehouse, vitalybuka, eugenis, flowerhack, dmmoore415
Reviewed By: morehouse, vitalybuka
Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D59031
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355643 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The bytemap classes will be used by the primary32 allocator to associate
classes with memory regions. It's similar to the sanitizer_common one
except for the fact that the base (level1) maps are mapped instead of
being static to reduce the memory footprint of an uninitialized allocator.
Reviewers: vitalybuka, eugenis, morehouse, flowerhack, dmmoore415, mcgrathr
Reviewed By: vitalybuka, morehouse
Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D58723
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355416 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
A missing `STATIC` entailed some annoying to debug failures wrt 32 vs 64
binaries. Additionally I noticed I was using the wrong variable (the Scudo
one as opposed to the Scudo Standalone one).
See https://reviews.llvm.org/D58184#1412417 and below for discussion.
Reviewers: vitalybuka, eugenis, brzycki
Reviewed By: vitalybuka, brzycki
Subscribers: mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D58794
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355203 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This CL adds a standalone vector class that will be used by the scoped
strings when they land. We reimplement our own vector class because we
can't use the std library one.
It's mostly borrowed from the current sanitizer_common one, with LLVM
code style changes.
Additionnally a casing change in a function name that slipped through
the previous review (the function isn't used yet).
Reviewers: vitalybuka, eugenis, flowerhack, dmmoore415, mcgrathr, morehouse
Reviewed By: vitalybuka
Subscribers: mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D58689
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354999 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This CL adds the platform specific code for Fuchsia, Linux & Android,
as well as some tests related to those (more tests to come later).
While some of it is pretty much a straight port of the existing scudo &
sanitizer_common code, the memory mapping functions have been reworked
a bit to fit the limited usage scenario that Scudo has for them.
For Fuchsia, I can now track the Vmar/Vmo pair for memory mappings if
there is an intent to grow or decommit some mapping (that will be
useful for the Primary).
Reviewers: eugenis, vitalybuka, mcgrathr, phosek, flowerhack, morehouse, dmmoore415
Reviewed By: vitalybuka, morehouse
Subscribers: kcc, dvyukov, srhines, mgorny, delcypher, jfb, jdoerfert, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D58184
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354895 91177308-0d34-0410-b5e6-96231b3b80d8
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Add missed value "libcxxabi" and introduce SANITIZER_TEST_CXX for linking
unit tests. This needs to be a full C++ library and cannot be libcxxabi.
Recommit r354132 which I reverted in r354153 because it broke a sanitizer
bot. This was because of the "fixes" for pthread linking, so I've removed
these changes.
Differential Revision: https://reviews.llvm.org/D58012
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354198 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts r354132 because it breaks sanitizer-x86_64-linux:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/19915
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354153 91177308-0d34-0410-b5e6-96231b3b80d8
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Add missed value "libcxxabi" and introduce SANITIZER_TEST_CXX for linking
unit tests. This needs to be a full C++ library and cannot be libcxxabi.
Differential Revision: https://reviews.llvm.org/D58012
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@354132 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The standalone Scudo version is being built with `-Werror` which can be
tripped by extraneous command line arguments. We have little control over
those as they can be passed down to us by `CMAKE_C(XX)_FLAGS`, the reported
scenario involving `-stdlib=libc++` (see https://reviews.llvm.org/D57412#1384504).
To work around this, disable `-Wunused-command-line-argument`.
Reviewers: eugenis, vitalybuka, Eugene.Zelenko
Reviewed By: eugenis
Subscribers: mgorny, delcypher, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D57757
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353418 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This is the initial check-in for the Standalone version of Scudo.
The project is initially going to live in scudo/standalone then will
replace scudo. See http://lists.llvm.org/pipermail/llvm-dev/2019-January/129113.html
for details.
This initial CL is meant to lay out the project structure, of both
code & tests, providing a minimal amount of functionalities, namely
various definitions, some atomic helpers and an intrusive list.
(empty.cc is just here to have a compilation unit, but will go away
in the upcoming CLs).
Initial support is restricted to Linux i386 & x86_64 in make files
and will be extended once things land & work.
We will grow organically from here, adding functionalities in limited
amounts.
Reviewers: morehouse, eugenis, vitalybuka, kcc, mcgrathr, flowerhack
Reviewed By: morehouse, vitalybuka
Subscribers: srhines, mgorny, krytarowski, delcypher, jfb, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D57412
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353055 91177308-0d34-0410-b5e6-96231b3b80d8
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