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llvm-project/compiler-rt/lib/scudo/standalone/CMakeLists.txt

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[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
add_compiler_rt_component(scudo_standalone)
[GWP-ASan] enable/disable and fork support. Summary: * Implement enable() and disable() in GWP-ASan. * Setup atfork handler. * Improve test harness sanity and re-enable GWP-ASan in Scudo. Scudo_standalone disables embedded GWP-ASan as necessary around fork(). Standalone GWP-ASan sets the atfork handler in init() if asked to. This requires a working malloc(), therefore GWP-ASan initialization in Scudo is delayed to the post-init callback. Test harness changes are about setting up a single global instance of the GWP-ASan allocator so that pthread_atfork() does not create dangling pointers. Test case shamelessly stolen from D72470. Reviewers: cryptoad, hctim, jfb Subscribers: mgorny, jfb, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D73294
2020-01-11 08:01:01 +08:00
if (COMPILER_RT_HAS_GWP_ASAN)
[NFC] Guard scudo_standalone's optional dependency on GWP-ASan behind flags.
2019-12-14 02:55:53 +08:00
add_dependencies(scudo_standalone gwp_asan)
endif()
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
scudo: Create a public include directory. NFCI. For MTE error reporting we will need to expose interfaces for crash handlers to use to interpret scudo headers and metadata. The intent is that these interfaces will live in scudo/interface.h. Move the existing interface.h into an include/scudo directory and make it independent of the internal headers, so that we will be able to add the interfaces there. Differential Revision: https://reviews.llvm.org/D76648
2020-03-24 07:08:18 +08:00
include_directories(../.. include)
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
set(SCUDO_CFLAGS)
list(APPEND SCUDO_CFLAGS
[scudo][standalone] Optimization pass Summary: This introduces a bunch of small optimizations with the purpose of making the fastpath tighter: - tag more conditions as `LIKELY`/`UNLIKELY`: as a rule of thumb we consider that every operation related to the secondary is unlikely - attempt to reduce the number of potentially extraneous instructions - reorganize the `Chunk` header to not straddle a word boundary and use more appropriate types Note that some `LIKELY`/`UNLIKELY` impact might be less obvious as they are in slow paths (for example in `secondary.cc`), but at this point I am throwing a pretty wide net, and it's consistant and doesn't hurt. This was mosly done for the benfit of Android, but other platforms benefit from it too. An aarch64 Android benchmark gives: - before: ``` BM_youtube/min_time:15.000/repeats:4/manual_time_mean 445244 us 659385 us 4 BM_youtube/min_time:15.000/repeats:4/manual_time_median 445007 us 658970 us 4 BM_youtube/min_time:15.000/repeats:4/manual_time_stddev 885 us 1332 us 4 ``` - after: ``` BM_youtube/min_time:15.000/repeats:4/manual_time_mean 415697 us 621925 us 4 BM_youtube/min_time:15.000/repeats:4/manual_time_median 415913 us 622061 us 4 BM_youtube/min_time:15.000/repeats:4/manual_time_stddev 990 us 1163 us 4 ``` Additional since `-Werror=conversion` is enabled on some platforms we are built on, enable it upstream to catch things early: a few sign conversions had slept through and needed additional casting. Reviewers: hctim, morehouse, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: srhines, mgorny, javed.absar, kristof.beyls, delcypher, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D64664 llvm-svn: 366918
2019-07-25 00:36:01 +08:00
-Werror=conversion
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
-Wall
-nostdinc++)
[scudo][standalone] Do not error out on spurious C(XX) flags 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 llvm-svn: 353418
2019-02-07 23:44:36 +08:00
# Remove -stdlib= which is unused when passing -nostdinc++.
string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
append_list_if(COMPILER_RT_HAS_FFREESTANDING_FLAG -ffreestanding SCUDO_CFLAGS)
append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SCUDO_CFLAGS)
scudo: Support memory tagging in the secondary allocator. This patch enhances the secondary allocator to be able to detect buffer overflow, and (on hardware supporting memory tagging) use-after-free and buffer underflow. Use-after-free detection is implemented by setting memory page protection to PROT_NONE on free. Because this must be done immediately rather than after the memory has been quarantined, we no longer use the combined allocator quarantine for secondary allocations. Instead, a quarantine has been added to the secondary allocator cache. Buffer overflow detection is implemented by aligning the allocation to the right of the writable pages, so that any overflows will spill into the guard page to the right of the allocation, which will have PROT_NONE page protection. Because this would require the secondary allocator to produce a header at the correct position, the responsibility for ensuring chunk alignment has been moved to the secondary allocator. Buffer underflow detection has been implemented on hardware supporting memory tagging by tagging the memory region between the start of the mapping and the start of the allocation with a non-zero tag. Due to the cost of pre-tagging secondary allocations and the memory bandwidth cost of tagged accesses, the allocation itself uses a tag of 0 and only the first four pages have memory tagging enabled. This is a reland of commit 7a0da8894348 which was reverted in commit 9678b07e42ee. This reland includes the following changes: - Fix the calculation of BlockSize which led to incorrect statistics returned by mallinfo(). - Add -Wno-pedantic to silence GCC warning. - Optionally add some slack at the end of secondary allocations to help work around buggy applications that read off the end of their allocation. Differential Revision: https://reviews.llvm.org/D93731
2020-12-22 10:39:03 +08:00
append_list_if(COMPILER_RT_HAS_WNO_PEDANTIC -Wno-pedantic SCUDO_CFLAGS)
[Scudo][CMake] Add -fno-lto to Scudo libraries -fno-lto is in SANITIZER_COMMON_CFLAGS but not here. Don't use SANITIZER_COMMON_CFLAGS because of performance issues. See https://bugs.llvm.org/show_bug.cgi?id=46838. Fixes $ ninja TScudoCUnitTest-i386-Test on an LLVM build with -DLLVM_ENABLE_LTO=Thin. check-scudo now passes. Reviewed By: cryptoad Differential Revision: https://reviews.llvm.org/D84805
2020-07-29 05:29:13 +08:00
# FIXME: find cleaner way to agree with GWPAsan flags
append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SCUDO_CFLAGS)
[GWP-ASan] Crash Handler API. Summary: Forewarning: This patch looks big in #LOC changed. I promise it's not that bad, it just moves a lot of content from one file to another. I've gone ahead and left inline comments on Phabricator for sections where this has happened. This patch: 1. Introduces the crash handler API (crash_handler_api.h). 2. Moves information required for out-of-process crash handling into an AllocatorState. This is a trivially-copied POD struct that designed to be recovered from a deceased process, and used by the crash handler to create a GWP-ASan report (along with the other trivially-copied Metadata struct). 3. Implements the crash handler API using the AllocatorState and Metadata. 4. Adds tests for the crash handler. 5. Reimplements the (now optionally linked by the supporting allocator) in-process crash handler (i.e. the segv handler) using the new crash handler API. 6. Minor updates Scudo & Scudo Standalone to fix compatibility. 7. Changed capitalisation of errors (e.g. /s/Use after free/Use After Free). Reviewers: cryptoad, eugenis, jfb Reviewed By: eugenis Subscribers: merge_guards_bot, pcc, jfb, dexonsmith, mgorny, cryptoad, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D73557
2020-02-06 07:39:03 +08:00
if (COMPILER_RT_HAS_GWP_ASAN)
append_list_if(COMPILER_RT_HAS_OMIT_FRAME_POINTER_FLAG -fno-omit-frame-pointer
SCUDO_CFLAGS)
append_list_if(COMPILER_RT_HAS_OMIT_FRAME_POINTER_FLAG
-mno-omit-leaf-frame-pointer SCUDO_CFLAGS)
endif() # COMPILER_RT_HAS_GWP_ASAN
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
if(COMPILER_RT_DEBUG)
list(APPEND SCUDO_CFLAGS -O0)
else()
list(APPEND SCUDO_CFLAGS -O3)
endif()
set(SCUDO_LINK_FLAGS)
list(APPEND SCUDO_LINK_FLAGS -Wl,-z,defs,-z,now,-z,relro)
append_list_if(COMPILER_RT_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs SCUDO_LINK_FLAGS)
if(ANDROID)
scudo: Only use the Android reserved TLS slot when building libc's copy of the allocator. When we're not building libc's allocator, just use a regular TLS variable. This lets the unit tests pass on Android devices whose libc uses Scudo. Otherwise libc's copy of Scudo and the unit tests' copy will both try to use the same TLS slot, in likely incompatible ways. This requires using ELF TLS, so start passing -fno-emulated-tls when building the library and the unit tests on Android. Differential Revision: https://reviews.llvm.org/D70472
2019-11-20 05:58:06 +08:00
list(APPEND SCUDO_CFLAGS -fno-emulated-tls)
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
# Put the shared library in the global group. For more details, see
# android-changes-for-ndk-developers.md#changes-to-library-search-order
append_list_if(COMPILER_RT_HAS_Z_GLOBAL -Wl,-z,global SCUDO_LINK_FLAGS)
endif()
set(SCUDO_HEADERS
[scudo][standalone] Introduce the combined allocator Summary: The Combined allocator hold together all the other components, and provides a memory allocator interface based on various template parameters. This will be in turn used by "wrappers" that will provide the standard C and C++ memory allocation functions, but can be used as is as well. This doesn't depart significantly from the current Scudo implementation except for a few details: - Quarantine batches are now protected by a header a well; - an Allocator instance has its own TSD registry, as opposed to a static one for everybody; - a function to iterate over busy chunks has been added, for Android purposes; This also adds the associated tests, and a few default configurations for several platforms, that will likely be further tuned later on. Reviewers: morehouse, hctim, eugenis, vitalybuka Reviewed By: morehouse Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63231 llvm-svn: 363569
2019-06-17 23:23:11 +08:00
allocator_config.h
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
atomic_helpers.h
[scudo][standalone] Add bytemap classes 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 llvm-svn: 355416
2019-03-06 01:36:11 +08:00
bytemap.h
[scudo][standalone] Implement checksumming functions 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 llvm-svn: 355923
2019-03-12 22:46:31 +08:00
checksum.h
[scudo][standalone] Introduce the chunk header Summary: ... and its related functions. The structure and its functionalities are identical to existing ones. The header stores information on a `scudo::Chunk` to be able to detect inconsitencies or potential corruption attempts. It is checksummed for that purpose. Reviewers: morehouse, eugenis, vitalybuka, hctim Reviewed By: vitalybuka Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D61654 llvm-svn: 360290
2019-05-09 05:54:02 +08:00
chunk.h
[scudo][standalone] Introduce the combined allocator Summary: The Combined allocator hold together all the other components, and provides a memory allocator interface based on various template parameters. This will be in turn used by "wrappers" that will provide the standard C and C++ memory allocation functions, but can be used as is as well. This doesn't depart significantly from the current Scudo implementation except for a few details: - Quarantine batches are now protected by a header a well; - an Allocator instance has its own TSD registry, as opposed to a static one for everybody; - a function to iterate over busy chunks has been added, for Android purposes; This also adds the associated tests, and a few default configurations for several platforms, that will likely be further tuned later on. Reviewers: morehouse, hctim, eugenis, vitalybuka Reviewed By: morehouse Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63231 llvm-svn: 363569
2019-06-17 23:23:11 +08:00
combined.h
[scudo][standalone] Add flags & related parsers 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 llvm-svn: 358011
2019-04-09 22:57:25 +08:00
flags.h
flags_parser.h
[scudo][standalone] Introduce the Secondary allocator 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 llvm-svn: 359097
2019-04-24 22:20:49 +08:00
fuchsia.h
[scudo][standalone] Add a standalone vector class 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 llvm-svn: 354999
2019-02-28 00:30:05 +08:00
internal_defs.h
linux.h
[scudo][standalone] Introduce platform specific code & mutexes 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 llvm-svn: 354895
2019-02-27 00:47:25 +08:00
list.h
[scudo][standalone] Introduce the Primary(s) and LocalCache Summary: This CL introduces the 32 & 64-bit primary allocators, and associated Local Cache. While the general idea is mostly similar to what exists in sanitizer_common, it departs from the original code somewhat significantly: - the 64-bit primary no longer uses a free array at the end of a region but uses batches of free blocks in region 0, allowing for a convergence with the 32-bit primary behavior; - as a result, there is only one (templated) local cache type for both primary allocators, and memory reclaiming can be implemented similarly for the 32-bit & 64-bit platforms; - 64-bit primary regions are handled a bit differently: we do not reserve 4TB of memory that we split, but reserve `NumClasses * 2^RegionSizeLog`, each region being offseted by a random number of pages from its computed base. A side effect of this is that the 64-bit primary works on 32-bit platform (I don't think we want to encourage it but it's an interesting side effect); Reviewers: vitalybuka, eugenis, morehouse, hctim Reviewed By: morehouse Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D61745 llvm-svn: 361159
2019-05-20 22:40:04 +08:00
local_cache.h
[scudo][standalone] Introduce platform specific code & mutexes 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 llvm-svn: 354895
2019-02-27 00:47:25 +08:00
mutex.h
[scudo][standalone] Add a standalone vector class 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 llvm-svn: 354999
2019-02-28 00:30:05 +08:00
platform.h
[scudo][standalone] Introduce the Primary(s) and LocalCache Summary: This CL introduces the 32 & 64-bit primary allocators, and associated Local Cache. While the general idea is mostly similar to what exists in sanitizer_common, it departs from the original code somewhat significantly: - the 64-bit primary no longer uses a free array at the end of a region but uses batches of free blocks in region 0, allowing for a convergence with the 32-bit primary behavior; - as a result, there is only one (templated) local cache type for both primary allocators, and memory reclaiming can be implemented similarly for the 32-bit & 64-bit platforms; - 64-bit primary regions are handled a bit differently: we do not reserve 4TB of memory that we split, but reserve `NumClasses * 2^RegionSizeLog`, each region being offseted by a random number of pages from its computed base. A side effect of this is that the 64-bit primary works on 32-bit platform (I don't think we want to encourage it but it's an interesting side effect); Reviewers: vitalybuka, eugenis, morehouse, hctim Reviewed By: morehouse Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D61745 llvm-svn: 361159
2019-05-20 22:40:04 +08:00
primary32.h
primary64.h
[scudo][standalone] Introduce the Quarantine Summary: The Quarantine is used to hold chunks for a little while prior to actually releasing them for potential reuse. The code is pretty much the same as the sanitizer_common one, with additional shuffling of the quarantine batches to decrease predictability of allocation patterns when it is enabled. Reviewers: vitalybuka, eugenis, hctim, morehouse Reviewed By: morehouse Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D61385 llvm-svn: 360163
2019-05-07 23:40:09 +08:00
quarantine.h
[scudo][standalone] Add the memory reclaiming mechanism 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 llvm-svn: 359567
2019-04-30 22:56:18 +08:00
release.h
[scudo][standalone] Add error reports 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 llvm-svn: 356556
2019-03-20 22:31:23 +08:00
report.h
[scudo][standalone] Introduce the Secondary allocator 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 llvm-svn: 359097
2019-04-24 22:20:49 +08:00
secondary.h
[scudo][standalone] Introduce the SizeClassMap 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 llvm-svn: 359199
2019-04-25 23:49:34 +08:00
size_class_map.h
[scudo][standalone] Adding a stats class 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 llvm-svn: 355643
2019-03-08 05:44:35 +08:00
stats.h
[scudo][standalone] Add string utility functions 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 llvm-svn: 356457
2019-03-19 22:47:05 +08:00
string_utils.h
[scudo][standalone] Introduce the thread specific data structures Summary: This CL adds the structures dealing with thread specific data for the allocator. This includes the thread specific data structure itself and two registries for said structures: an exclusive one, where each thread will have its own TSD struct, and a shared one, where a pool of TSD structs will be shared by all threads, with dynamic reassignment at runtime based on contention. This departs from the current Scudo implementation: we intend to make the Registry a template parameter of the allocator (as opposed to a single global entity), allowing various allocators to coexist with different TSD registry models. As a result, TSD registry and Allocator are tightly coupled. This also corrects a couple of things in other files that I noticed while adding this. Reviewers: eugenis, vitalybuka, morehouse, hctim Reviewed By: morehouse Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D62258 llvm-svn: 362962
2019-06-11 00:50:52 +08:00
tsd.h
tsd_exclusive.h
tsd_shared.h
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
vector.h
wrappers_c_checks.h
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
wrappers_c.h
scudo: Create a public include directory. NFCI. For MTE error reporting we will need to expose interfaces for crash handlers to use to interpret scudo headers and metadata. The intent is that these interfaces will live in scudo/interface.h. Move the existing interface.h into an include/scudo directory and make it independent of the internal headers, so that we will be able to add the interfaces there. Differential Revision: https://reviews.llvm.org/D76648
2020-03-24 07:08:18 +08:00
include/scudo/interface.h
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
)
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
set(SCUDO_SOURCES
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
checksum.cpp
crc32_hw.cpp
common.cpp
flags.cpp
flags_parser.cpp
fuchsia.cpp
linux.cpp
[scudo][standalone] Shift some data from dynamic to static Summary: Most of our larger data is dynamically allocated (via `map`) but it became an hindrance with regard to init time, for a cost to benefit ratio that is not great. So change the `TSD`s, `RegionInfo`, `ByteMap` to be static. Additionally, for reclaiming, we used mapped & unmapped a buffer each time, which is costly. It turns out that we can have a static buffer, and that there isn't much contention on it. One of the other things changed here, is that we hard set the number of TSDs on Android to the maximum number, as there could be a situation where cores are put to sleep and we could miss some. Subscribers: mgorny, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D74696
2020-02-17 07:29:46 +08:00
release.cpp
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
report.cpp
string_utils.cpp
)
# Enable the SSE 4.2 instruction set for crc32_hw.cpp, if available.
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
if (COMPILER_RT_HAS_MSSE4_2_FLAG)
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
set_source_files_properties(crc32_hw.cpp PROPERTIES COMPILE_FLAGS -msse4.2)
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
endif()
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
# Enable the AArch64 CRC32 feature for crc32_hw.cpp, if available.
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
# Note that it is enabled by default starting with armv8.1-a.
if (COMPILER_RT_HAS_MCRC_FLAG)
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
set_source_files_properties(crc32_hw.cpp PROPERTIES COMPILE_FLAGS -mcrc)
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
endif()
set(SCUDO_SOURCES_C_WRAPPERS
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
wrappers_c.cpp
)
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
set(SCUDO_SOURCES_CXX_WRAPPERS
compiler-rt: Rename .cc file in lib/scudo/standalone to .cpp Like r367463, but for scudo/standalone. llvm-svn: 367568
2019-08-01 22:36:38 +08:00
wrappers_cpp.cpp
)
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
[Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. Summary: Adds GWP-ASan to Scudo standalone. Default parameters are pulled across from the GWP-ASan build. No backtrace support as of yet. Reviewers: cryptoad, eugenis, pcc Reviewed By: cryptoad Subscribers: merge_guards_bot, mgorny, #sanitizers, llvm-commits, cferris, vlad.tsyrklevich, pcc Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71229
2019-12-14 01:09:34 +08:00
set(SCUDO_OBJECT_LIBS)
[GWP-ASan] enable/disable and fork support. Summary: * Implement enable() and disable() in GWP-ASan. * Setup atfork handler. * Improve test harness sanity and re-enable GWP-ASan in Scudo. Scudo_standalone disables embedded GWP-ASan as necessary around fork(). Standalone GWP-ASan sets the atfork handler in init() if asked to. This requires a working malloc(), therefore GWP-ASan initialization in Scudo is delayed to the post-init callback. Test harness changes are about setting up a single global instance of the GWP-ASan allocator so that pthread_atfork() does not create dangling pointers. Test case shamelessly stolen from D72470. Reviewers: cryptoad, hctim, jfb Subscribers: mgorny, jfb, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D73294
2020-01-11 08:01:01 +08:00
if (COMPILER_RT_HAS_GWP_ASAN)
[GWP-ASan] Crash Handler API. Summary: Forewarning: This patch looks big in #LOC changed. I promise it's not that bad, it just moves a lot of content from one file to another. I've gone ahead and left inline comments on Phabricator for sections where this has happened. This patch: 1. Introduces the crash handler API (crash_handler_api.h). 2. Moves information required for out-of-process crash handling into an AllocatorState. This is a trivially-copied POD struct that designed to be recovered from a deceased process, and used by the crash handler to create a GWP-ASan report (along with the other trivially-copied Metadata struct). 3. Implements the crash handler API using the AllocatorState and Metadata. 4. Adds tests for the crash handler. 5. Reimplements the (now optionally linked by the supporting allocator) in-process crash handler (i.e. the segv handler) using the new crash handler API. 6. Minor updates Scudo & Scudo Standalone to fix compatibility. 7. Changed capitalisation of errors (e.g. /s/Use after free/Use After Free). Reviewers: cryptoad, eugenis, jfb Reviewed By: eugenis Subscribers: merge_guards_bot, pcc, jfb, dexonsmith, mgorny, cryptoad, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D73557
2020-02-06 07:39:03 +08:00
list(APPEND SCUDO_OBJECT_LIBS
[scudo][standalone] Restore GWP-ASan flag parsing With D92696, the Scudo Standalone GWP-ASan flag parsing was changed to the new GWP-ASan optional one. We do not necessarily want this, as this duplicates flag parsing code in Scudo Standalone when using the GWP-ASan integration. This CL reverts the changes within Scudo Standalone, and increases `MaxFlags` to 20 as an addionnal option got us to the current max. Differential Revision: https://reviews.llvm.org/D95542
2021-01-28 01:54:50 +08:00
RTGwpAsan RTGwpAsanBacktraceLibc RTGwpAsanSegvHandler)
[Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. Summary: Adds GWP-ASan to Scudo standalone. Default parameters are pulled across from the GWP-ASan build. No backtrace support as of yet. Reviewers: cryptoad, eugenis, pcc Reviewed By: cryptoad Subscribers: merge_guards_bot, mgorny, #sanitizers, llvm-commits, cferris, vlad.tsyrklevich, pcc Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71229
2019-12-14 01:09:34 +08:00
list(APPEND SCUDO_CFLAGS -DGWP_ASAN_HOOKS)
endif()
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
if(COMPILER_RT_HAS_SCUDO_STANDALONE)
[scudo][standalone] Introduce platform specific code & mutexes 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 llvm-svn: 354895
2019-02-27 00:47:25 +08:00
add_compiler_rt_object_libraries(RTScudoStandalone
ARCHS ${SCUDO_STANDALONE_SUPPORTED_ARCH}
SOURCES ${SCUDO_SOURCES}
ADDITIONAL_HEADERS ${SCUDO_HEADERS}
CFLAGS ${SCUDO_CFLAGS})
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
add_compiler_rt_object_libraries(RTScudoStandaloneCWrappers
ARCHS ${SCUDO_STANDALONE_SUPPORTED_ARCH}
SOURCES ${SCUDO_SOURCES_C_WRAPPERS}
ADDITIONAL_HEADERS ${SCUDO_HEADERS}
CFLAGS ${SCUDO_CFLAGS})
add_compiler_rt_object_libraries(RTScudoStandaloneCxxWrappers
ARCHS ${SCUDO_STANDALONE_SUPPORTED_ARCH}
SOURCES ${SCUDO_SOURCES_CXX_WRAPPERS}
ADDITIONAL_HEADERS ${SCUDO_HEADERS}
CFLAGS ${SCUDO_CFLAGS})
[scudo][standalone] Introduce platform specific code & mutexes 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 llvm-svn: 354895
2019-02-27 00:47:25 +08:00
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
add_compiler_rt_runtime(clang_rt.scudo_standalone
STATIC
[scudo][standalone] Introduce platform specific code & mutexes 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 llvm-svn: 354895
2019-02-27 00:47:25 +08:00
ARCHS ${SCUDO_STANDALONE_SUPPORTED_ARCH}
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
SOURCES ${SCUDO_SOURCES} ${SCUDO_SOURCES_C_WRAPPERS}
ADDITIONAL_HEADERS ${SCUDO_HEADERS}
CFLAGS ${SCUDO_CFLAGS}
[Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. Summary: Adds GWP-ASan to Scudo standalone. Default parameters are pulled across from the GWP-ASan build. No backtrace support as of yet. Reviewers: cryptoad, eugenis, pcc Reviewed By: cryptoad Subscribers: merge_guards_bot, mgorny, #sanitizers, llvm-commits, cferris, vlad.tsyrklevich, pcc Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71229
2019-12-14 01:09:34 +08:00
OBJECT_LIBS ${SCUDO_OBJECT_LIBS}
[scudo][standalone] Introduce the C & C++ wrappers [fixed] Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
2019-06-27 22:23:26 +08:00
PARENT_TARGET scudo_standalone)
add_compiler_rt_runtime(clang_rt.scudo_standalone_cxx
STATIC
ARCHS ${SCUDO_STANDALONE_SUPPORTED_ARCH}
SOURCES ${SCUDO_SOURCES_CXX_WRAPPERS}
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
ADDITIONAL_HEADERS ${SCUDO_HEADERS}
CFLAGS ${SCUDO_CFLAGS}
[Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. Summary: Adds GWP-ASan to Scudo standalone. Default parameters are pulled across from the GWP-ASan build. No backtrace support as of yet. Reviewers: cryptoad, eugenis, pcc Reviewed By: cryptoad Subscribers: merge_guards_bot, mgorny, #sanitizers, llvm-commits, cferris, vlad.tsyrklevich, pcc Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D71229
2019-12-14 01:09:34 +08:00
OBJECT_LIBS ${SCUDO_OBJECT_LIBS}
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
PARENT_TARGET scudo_standalone)
scudo: Add a basic malloc/free benchmark. Differential Revision: https://reviews.llvm.org/D71104
2019-12-06 08:44:07 +08:00
add_subdirectory(benchmarks)
[scudo] Initial standalone skeleton check-in 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 llvm-svn: 353055
2019-02-05 00:25:40 +08:00
if(COMPILER_RT_INCLUDE_TESTS)
add_subdirectory(tests)
endif()
endif()