- 20 Feb, 2018 1 commit
-
-
Bill Budge authored
- Changes assert to reflect that we might exceed the number of attempts to allocate a padded memory region while attempting to get an aligned allocation and return null instead. Bug: chromium:813587 Change-Id: I0e225f50b7a64a2f2a72de15322525574445efbd Reviewed-on: https://chromium-review.googlesource.com/926968Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#51401}
-
- 02 Feb, 2018 1 commit
-
-
Bill Budge authored
- Adds a DCHECK to FreePages that size is a multiple of allocation granularity. - Makes VirtualMemory::Free conform to this. This is to conform more closely to Chromium's page allocator API. Bug:chromium:756050 Change-Id: I673e1c225b8bd1009775de1597b575120bd06f8e Reviewed-on: https://chromium-review.googlesource.com/898008Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#51064}
-
- 24 Jan, 2018 1 commit
-
-
Michael Starzinger authored
This reverts commit bf19e60c. Reason for revert: Two issues discovered with W^X in V8's 6.5 branch (see v8:7272 and chromium:793428). Still need a way to disable the feature. Original change's description: > [platform] Remove {PageAllocator::kReadWriteExecute}. > > Now that write-protection of code memory is enabled everywhere and V8 is > fully W^X compliant, we can remove the permission mode in question. > > R=hpayer@chromium.org > BUG=v8:6792 > > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: I80fe95ac6bb0e2d1ad6d993154ce45d492d941be > Reviewed-on: https://chromium-review.googlesource.com/866855 > Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Reviewed-by: Bill Budge <bbudge@chromium.org> > Cr-Commit-Position: refs/heads/master@{#50770} TBR=bbudge@chromium.org,mstarzinger@chromium.org,hpayer@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: v8:6792 Change-Id: If4a205497ac83084a4092560363affb13b391462 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/883461Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#50834}
-
- 22 Jan, 2018 1 commit
-
-
Michael Starzinger authored
Now that write-protection of code memory is enabled everywhere and V8 is fully W^X compliant, we can remove the permission mode in question. R=hpayer@chromium.org BUG=v8:6792 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I80fe95ac6bb0e2d1ad6d993154ce45d492d941be Reviewed-on: https://chromium-review.googlesource.com/866855 Commit-Queue: Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Reviewed-by:
Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#50770}
-
- 19 Jan, 2018 1 commit
-
-
Bill Budge authored
- Changes OS::Allocate to first try an exact size aligned allocation, then padded allocations. All padded allocations should be trimmed. Bug: chromium:800511 Change-Id: Iccab2eddbf2a3b08d2b83b95f96c766c9fad7a82 Reviewed-on: https://chromium-review.googlesource.com/875242Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#50706}
-
- 21 Dec, 2017 1 commit
-
-
Bill Budge authored
- Adds SetRandomMmapSeed method. - Removes random seed from OS::Initialize signature. Bug: chromium:756050 Change-Id: I46ef6a92efb8b97541b90383d08776dd73a35a0c Reviewed-on: https://chromium-review.googlesource.com/836907Reviewed-by:
Bill Budge <bbudge@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#50280}
-
- 19 Dec, 2017 1 commit
-
-
Bill Budge authored
- Uses a mutex to prevent races on getting random mmap addresses, on POSIX and Windows. Original change's description: > [Memory] Speculative fix for sanitizer flakiness. > > - When allocating virtual memory, make sure addresses don't interfere > with hard-coded sanitizer regions. > > Bug: v8:7146 > Change-Id: I5bcb664b32bf53c8581772fe329190da6033701f > Reviewed-on: https://chromium-review.googlesource.com/833171 > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Commit-Queue: Bill Budge <bbudge@chromium.org> > Cr-Commit-Position: refs/heads/master@{#50208} Bug: v8:7146 Change-Id: I5a82f2a1f6136498fb2aa7a37e0206c506545073 Reviewed-on: https://chromium-review.googlesource.com/834453Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#50216}
-
- 22 Nov, 2017 2 commits
-
-
Bill Budge authored
Bug: v8:6928 Change-Id: Ie414566a8286e0ccb54447828aea660e13bafb94 Reviewed-on: https://chromium-review.googlesource.com/783632Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#49587}
-
Bill Budge authored
- Change VirtualMemory to match OS memory concepts. Rename Release Free, ReleasePartial to Release. - Adds comments to make the semantics clear. Right now V8 munmaps on POSIX, making address space available, while on Windows it is only possible to decommit. Bug: chromium:756050 Change-Id: I6ba04d857ab9e1ca1f273e9e766e0825e67210cc Reviewed-on: https://chromium-review.googlesource.com/783513Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#49586}
-
- 21 Nov, 2017 1 commit
-
-
Bill Budge authored
- Eliminates CommitRegion and UncommitRegion methods, replacing them with calls to SetPermissions. - Makes a similar change to the API of VirtualMemory. - This changes system calls from mmap to mprotect on most POSIX platforms. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Ib10f8293c9398c6c1e729cd7d686b7c97e6a5d75 Reviewed-on: https://chromium-review.googlesource.com/769679Reviewed-by:
Hannes Payer <hpayer@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#49552}
-
- 16 Nov, 2017 2 commits
-
-
Bill Budge authored
- Adds SetPermissions method which returns bool result. - Eliminates Guard, SetReadAndWritable, SetReadAndExecutable, and SetReadWriteAndExecutable methods. - Adds some Fuchsia memory allocation implementation. - Some minor fixes in usage of OS::AllocatePageSize and OS::CommitPageSize. - Adds DCHECKs for sanitizing parameters to OS::Allocate/Free. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I966ec6f029dd0371d70eca20bae197d87956f8b5 Reviewed-on: https://chromium-review.googlesource.com/760657 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#49430}
-
Hannes Payer authored
This CL also narrows the rw scopes on various call sites. Bug: chromium:774108,v8:6792 Change-Id: I41a6f5dc4948833baaa441fb998ef40d8a832619 Reviewed-on: https://chromium-review.googlesource.com/758370 Commit-Queue: Hannes Payer <hpayer@chromium.org> Reviewed-by:
Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#49411}
-
- 14 Nov, 2017 1 commit
-
-
Bill Budge authored
This is a reland of 4899bcb6 This is a reland of b73ee334 Original change's description: > [Memory] Use OS::Allocate for all OS memory allocations. > > - Eliminates OS::ReserveRegion and OS::ReserveAlignedRegion. > - Changes OS::Allocate to take alignment parameter, reorders parameters > to match page_allocator. > - Since the size of memory allocation can be deduced, don't return the > amount of memory allocated. > - Changes reservation of aligned address space. Before we would reserve > (size + alignment) rounded up to page size. This is too much, because > maximum misalignment is (alignment - page_size). > - On Windows and Cygwin, we release an oversize allocation and > immediately retry at the aligned address in the allocation. If we > lose the address due to a race, we just retry. > - Clean up all the calls to OS::Allocate in codegen and tests by adding > helper AllocateSystemPage function (allocation.h) and > AllocateAssemblerBuffer (cctest.h). > - Changes 'assm' to 'masm' in some targets for consistency when using > a macro-assembler. > > - Eliminates OS::ReleaseRegion, replacing with calls to OS::Free. > - Adds bool return value to OS::Free. > - Cleans up types of flags, protection on Windows and Cygwin. > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: I306dbe042cc867670fdc935abca29db074b0da71 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Iad3c025334e8f8d7d647be99a36a11ee449c9087 Reviewed-on: https://chromium-review.googlesource.com/767014 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#49363}
-
- 11 Nov, 2017 1 commit
-
-
Jakob Gruber authored
Revert this and its follow-up as suspect for current canary OOM crasher. This reverts commit 4899bcb6. This reverts commit b73ee334. TBR=adamk@chromium.org,hpayer@chromium.org Bug: chromium:783708 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I4c00582e7ab2df22216ad6732e2843e9958db0c0 Reviewed-on: https://chromium-review.googlesource.com/765447Reviewed-by:
Jakob Gruber <jgruber@chromium.org> Reviewed-by:
Bill Budge <bbudge@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#49315}
-
- 10 Nov, 2017 1 commit
-
-
Bill Budge authored
- Eliminates OS::ReleaseRegion, replacing with calls to OS::Free. - Adds bool return value to OS::Free. - Cleans up types of flags, protection on Windows and Cygwin. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I6a642374e33876966a5552fb0cdf552dc6d79aaa Reviewed-on: https://chromium-review.googlesource.com/762345 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#49305}
-
- 09 Nov, 2017 1 commit
-
-
Bill Budge authored
This is a reland of 7e78506f Original change's description: > [Memory] Use OS::Allocate for all OS memory allocations. > > - Eliminates OS::ReserveRegion and OS::ReserveAlignedRegion. > - Changes OS::Allocate to take alignment parameter, reorders parameters > to match page_allocator. > - Since the size of memory allocation can be deduced, don't return the > amount of memory allocated. > - Changes reservation of aligned address space. Before we would reserve > (size + alignment) rounded up to page size. This is too much, because > maximum misalignment is (alignment - page_size). > - On Windows and Cygwin, we release an oversize allocation and > immediately retry at the aligned address in the allocation. If we > lose the address due to a race, we just retry. > - Clean up all the calls to OS::Allocate in codegen and tests by adding > helper AllocateSystemPage function (allocation.h) and > AllocateAssemblerBuffer (cctest.h). > - Changes 'assm' to 'masm' in some targets for consistency when using > a macro-assembler. > > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: I306dbe042cc867670fdc935abca29db074b0da71 > Reviewed-on: https://chromium-review.googlesource.com/749848 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#49235} Bug: chromium:756050 Change-Id: I333f7a6aea0bcb608d01cafb43e94893a4625b15 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/758509Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#49273}
-
- 08 Nov, 2017 2 commits
-
-
Bill Budge authored
This reverts commit 7e78506f. Reason for revert: Broke Android build on Arm64. Original change's description: > [Memory] Use OS::Allocate for all OS memory allocations. > > - Eliminates OS::ReserveRegion and OS::ReserveAlignedRegion. > - Changes OS::Allocate to take alignment parameter, reorders parameters > to match page_allocator. > - Since the size of memory allocation can be deduced, don't return the > amount of memory allocated. > - Changes reservation of aligned address space. Before we would reserve > (size + alignment) rounded up to page size. This is too much, because > maximum misalignment is (alignment - page_size). > - On Windows and Cygwin, we release an oversize allocation and > immediately retry at the aligned address in the allocation. If we > lose the address due to a race, we just retry. > - Clean up all the calls to OS::Allocate in codegen and tests by adding > helper AllocateSystemPage function (allocation.h) and > AllocateAssemblerBuffer (cctest.h). > - Changes 'assm' to 'masm' in some targets for consistency when using > a macro-assembler. > > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: I306dbe042cc867670fdc935abca29db074b0da71 > Reviewed-on: https://chromium-review.googlesource.com/749848 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#49235} TBR=bbudge@chromium.org,hpayer@chromium.org,mlippautz@chromium.org Change-Id: Ic09de4d63c19746a62e804b1f889817ffaebc330 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/758625Reviewed-by:
Bill Budge <bbudge@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#49242}
-
Bill Budge authored
- Eliminates OS::ReserveRegion and OS::ReserveAlignedRegion. - Changes OS::Allocate to take alignment parameter, reorders parameters to match page_allocator. - Since the size of memory allocation can be deduced, don't return the amount of memory allocated. - Changes reservation of aligned address space. Before we would reserve (size + alignment) rounded up to page size. This is too much, because maximum misalignment is (alignment - page_size). - On Windows and Cygwin, we release an oversize allocation and immediately retry at the aligned address in the allocation. If we lose the address due to a race, we just retry. - Clean up all the calls to OS::Allocate in codegen and tests by adding helper AllocateSystemPage function (allocation.h) and AllocateAssemblerBuffer (cctest.h). - Changes 'assm' to 'masm' in some targets for consistency when using a macro-assembler. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I306dbe042cc867670fdc935abca29db074b0da71 Reviewed-on: https://chromium-review.googlesource.com/749848 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#49235}
-
- 07 Nov, 2017 2 commits
-
-
Eric Holk authored
This reverts commit 32f30f63. Reason for revert: broken Fuchsia build, https://logs.chromium.org/v/?s=chromium%2Fbb%2Fclient.v8%2FV8_Fuchsia%2F460%2F%2B%2Frecipes%2Fsteps%2Fcompile%2F0%2Fstdout Original change's description: > [platform] check return values from memory operations > > This change adds DCHECKs for calls such as mprotect, as well as marking some of > the memory allocation and deallocation routines as V8_MUST_USE_RESULT. This > additional checking gives us more useful information for failure in the presence > of, for example, address space exhaustion. > > Bug: > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: I5bc76c1da6160262d3d556fea49d284ddd4e02c5 > Reviewed-on: https://chromium-review.googlesource.com/721267 > Commit-Queue: Eric Holk <eholk@chromium.org> > Reviewed-by: Hannes Payer <hpayer@chromium.org> > Cr-Commit-Position: refs/heads/master@{#49164} TBR=hpayer@chromium.org,mlippautz@google.com,eholk@chromium.org Change-Id: Ie4b57b45c801dcce7884645f50ff74f833de6dc4 No-Presubmit: true No-Tree-Checks: true No-Try: true Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/756137Reviewed-by:
Eric Holk <eholk@chromium.org> Commit-Queue: Eric Holk <eholk@chromium.org> Cr-Commit-Position: refs/heads/master@{#49165}
-
Eric Holk authored
This change adds DCHECKs for calls such as mprotect, as well as marking some of the memory allocation and deallocation routines as V8_MUST_USE_RESULT. This additional checking gives us more useful information for failure in the presence of, for example, address space exhaustion. Bug: Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I5bc76c1da6160262d3d556fea49d284ddd4e02c5 Reviewed-on: https://chromium-review.googlesource.com/721267 Commit-Queue: Eric Holk <eholk@chromium.org> Reviewed-by:
Hannes Payer <hpayer@chromium.org> Cr-Commit-Position: refs/heads/master@{#49164}
-
- 06 Nov, 2017 1 commit
-
-
Hannes Payer authored
Bug: chromium:774108,v8:6792 Change-Id: Ibdb00bee4dc563663ef2151b489600a2b100f146 Reviewed-on: https://chromium-review.googlesource.com/739601 Commit-Queue: Hannes Payer <hpayer@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#49143}
-
- 03 Nov, 2017 1 commit
-
-
Bill Budge authored
- Sanitize Windows page size / alignment code. - Reorder some methods to match header file. - Rename AllocateAlignment to AllocatePageSize to be consistent with CommitPageSize. - Eliminate OS::Allocate overload with is_executable argument. - Eliminate base::OS::AllocateGuarded - it's not implemented. Bug: chromium:756050 Change-Id: I046bb019cddde0c0063d617adc2c94a23989d9d1 Reviewed-on: https://chromium-review.googlesource.com/742684 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Bill Budge <bbudge@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#49114}
-
- 20 Oct, 2017 1 commit
-
-
Hannes Payer authored
This CL provides the basic infrastructure on the GC side for write protected code pages. The only thing missing on the GC side is the out-of-line free list implementation. In this CL sweeper threads and the mutator need to synchronize when page protection mode changes. This would not be necessary if the sweepr use and out-of-line free list. Code allocation is currently protected by a CodeSpaceMemoryModificationScope. This may go away with a unification of code space allocation and initialization that will happen later. One thing missing in this CL: freshly added pages are still read+write+executable. This also needs to change: WIP Bug: chromium:774108,v8:6792 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Ib8d1ed1c09cc144791e462277bf43a4641e1490d Reviewed-on: https://chromium-review.googlesource.com/716379 Commit-Queue: Hannes Payer <hpayer@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Reviewed-by:
Yang Guo <yangguo@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#48774}
-
- 18 Oct, 2017 2 commits
-
-
Bill Budge authored
This reverts commit d607f1e7. Reason for revert: Suspected cause of hanging tests: https://bugs.chromium.org/p/v8/issues/detail?id=6927#c13 Original change's description: > [Memory] Move GetRandomMmapAddr from base::OS platform to v8::internal. > > - Moves GetRandomMmapAddr from platform to v8::internal allocation > primitives, in preparation for delegating this to the embedder. > - Adds hint parameters to OS functions that used to use this function. > > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: Iad72e6eac9c08a3e22c2cd2b2905623b8e514ae0 > Reviewed-on: https://chromium-review.googlesource.com/677777 > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Commit-Queue: Bill Budge <bbudge@chromium.org> > Cr-Commit-Position: refs/heads/master@{#48124} TBR=bbudge@chromium.org,ulan@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: chromium:756050 Change-Id: I2c515934906e67b47ceea2863bc2992ac1d23ab3 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/726319 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Bill Budge <bbudge@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#48701}
-
Clemens Hammacher authored
This CL fixes all occurences that don't require special OWNER reviews, or can be reviewed by Michi. After this one, we should be able to reenable the readability/check cpplint check. R=mstarzinger@chromium.org Bug: v8:6837, v8:6921 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng;master.tryserver.v8:v8_linux_noi18n_rel_ng Change-Id: Ic81d68d5534eaa795b7197fed5c41ed158361d62 Reviewed-on: https://chromium-review.googlesource.com/721120 Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Reviewed-by:
Michael Starzinger <mstarzinger@chromium.org> Cr-Commit-Position: refs/heads/master@{#48670}
-
- 01 Oct, 2017 1 commit
-
-
Bill Budge authored
- Moves leak sanitizer code to callers of OS:: Memory functions. - Changes signature of OS::ReleasePartialRegion to be more generic, removing the parameters that only make sense as part of VirtualMemory. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I2f1401c9b0856b2eaf36b80b5f141e935ef63e1c Reviewed-on: https://chromium-review.googlesource.com/685741Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#48250}
-
- 22 Sep, 2017 1 commit
-
-
Bill Budge authored
- Moves GetRandomMmapAddr from platform to v8::internal allocation primitives, in preparation for delegating this to the embedder. - Adds hint parameters to OS functions that used to use this function. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Iad72e6eac9c08a3e22c2cd2b2905623b8e514ae0 Reviewed-on: https://chromium-review.googlesource.com/677777Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#48124}
-
- 21 Sep, 2017 1 commit
-
-
Bill Budge authored
This is a reland of f2cd10db Original change's description: > Reland "[Memory] Move VirtualMemory out of base:: platform." > > This is a reland of 4dd293d9 > Original change's description: > > [Memory] Move VirtualMemory out of base:: platform. > > > > - Moves base::VirtualMemory to v8::internal::VirtualMemory. > > - Makes VirtualMemory platform-independent by moving internals to new > > OS:: static methods, for each platform. > > > > This will make it easier to delegate memory management in VirtualMemory > > to V8::Platform, so that embedders like Blink can override it. We can't > > depend on V8::Platform in base/platform. > > > > Bug: chromium:756050 > > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > > Change-Id: Iadfe230b6850bd917727a373f277afded9883adf > > Reviewed-on: https://chromium-review.googlesource.com/653214 > > Commit-Queue: Bill Budge <bbudge@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#48048} > > Bug: chromium:756050 > Change-Id: Ib492c7c69f1833be127a571808301e96b84b8aa2 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Reviewed-on: https://chromium-review.googlesource.com/671125 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#48084} Bug: chromium:756050 Change-Id: Ie596730b5cefc38137cab7fc1f76613f5af7b825 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/675283Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Bill Budge <bbudge@chromium.org> Cr-Commit-Position: refs/heads/master@{#48113}
-
- 20 Sep, 2017 1 commit
-
-
Michael Hablich authored
This reverts commit f2cd10db. Reason for revert: Blocks the roll https://chromium-review.googlesource.com/c/chromium/src/+/674623 Original change's description: > Reland "[Memory] Move VirtualMemory out of base:: platform." > > This is a reland of 4dd293d9 > Original change's description: > > [Memory] Move VirtualMemory out of base:: platform. > > > > - Moves base::VirtualMemory to v8::internal::VirtualMemory. > > - Makes VirtualMemory platform-independent by moving internals to new > > OS:: static methods, for each platform. > > > > This will make it easier to delegate memory management in VirtualMemory > > to V8::Platform, so that embedders like Blink can override it. We can't > > depend on V8::Platform in base/platform. > > > > Bug: chromium:756050 > > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > > Change-Id: Iadfe230b6850bd917727a373f277afded9883adf > > Reviewed-on: https://chromium-review.googlesource.com/653214 > > Commit-Queue: Bill Budge <bbudge@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#48048} > > Bug: chromium:756050 > Change-Id: Ib492c7c69f1833be127a571808301e96b84b8aa2 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Reviewed-on: https://chromium-review.googlesource.com/671125 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#48084} TBR=bbudge@chromium.org,ulan@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,scottmg@chromium.org Change-Id: I04176d77ca9ad8315b0e1bb2b21f40f2c8ab9536 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/674843Reviewed-by:
Michael Hablich <hablich@chromium.org> Commit-Queue: Michael Hablich <hablich@chromium.org> Cr-Commit-Position: refs/heads/master@{#48088}
-
- 19 Sep, 2017 1 commit
-
-
Bill Budge authored
This is a reland of 4dd293d9 Original change's description: > [Memory] Move VirtualMemory out of base:: platform. > > - Moves base::VirtualMemory to v8::internal::VirtualMemory. > - Makes VirtualMemory platform-independent by moving internals to new > OS:: static methods, for each platform. > > This will make it easier to delegate memory management in VirtualMemory > to V8::Platform, so that embedders like Blink can override it. We can't > depend on V8::Platform in base/platform. > > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: Iadfe230b6850bd917727a373f277afded9883adf > Reviewed-on: https://chromium-review.googlesource.com/653214 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#48048} Bug: chromium:756050 Change-Id: Ib492c7c69f1833be127a571808301e96b84b8aa2 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/671125 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#48084}
-
- 18 Sep, 2017 1 commit
-
-
Michael Hablich authored
This reverts commit 4dd293d9. Reason for revert: Blocks roll: https://chromium-review.googlesource.com/c/chromium/src/+/669785 Original change's description: > [Memory] Move VirtualMemory out of base:: platform. > > - Moves base::VirtualMemory to v8::internal::VirtualMemory. > - Makes VirtualMemory platform-independent by moving internals to new > OS:: static methods, for each platform. > > This will make it easier to delegate memory management in VirtualMemory > to V8::Platform, so that embedders like Blink can override it. We can't > depend on V8::Platform in base/platform. > > Bug: chromium:756050 > Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng > Change-Id: Iadfe230b6850bd917727a373f277afded9883adf > Reviewed-on: https://chromium-review.googlesource.com/653214 > Commit-Queue: Bill Budge <bbudge@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Cr-Commit-Position: refs/heads/master@{#48048} TBR=bbudge@chromium.org,ulan@chromium.org,hpayer@chromium.org,mlippautz@chromium.org,scottmg@chromium.org # Not skipping CQ checks because original CL landed > 1 day ago. Bug: chromium:756050 Change-Id: Ice2618ef72950e1b64c31434a239c626aa5e5970 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Reviewed-on: https://chromium-review.googlesource.com/670843Reviewed-by:
Michael Hablich <hablich@chromium.org> Reviewed-by:
Michael Achenbach <machenbach@chromium.org> Commit-Queue: Michael Hablich <hablich@chromium.org> Cr-Commit-Position: refs/heads/master@{#48062}
-
- 15 Sep, 2017 1 commit
-
-
Bill Budge authored
- Moves base::VirtualMemory to v8::internal::VirtualMemory. - Makes VirtualMemory platform-independent by moving internals to new OS:: static methods, for each platform. This will make it easier to delegate memory management in VirtualMemory to V8::Platform, so that embedders like Blink can override it. We can't depend on V8::Platform in base/platform. Bug: chromium:756050 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: Iadfe230b6850bd917727a373f277afded9883adf Reviewed-on: https://chromium-review.googlesource.com/653214 Commit-Queue: Bill Budge <bbudge@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#48048}
-
- 11 Sep, 2017 1 commit
-
-
Deepti Gandluri authored
- Memory.Grow with guard pages enabled should adjust amount of allocated memory, and not allocate a new buffer. This was disabled because previously the backing store was freed in the MemoryFinalizer, and we needed to be sure that the backing store is not released till the last buffer using it is released. This is now safe as we no longer use the MemoryFinalizer - SetProtection should use Guard/Unprotect that use mprotect underneath, instead of CommitRegion/UncommitRegion that use mmap - Move buffer allocation to the end to avoid inconsistent memory due to GC BUG=v8:5886 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I0d7edb884bd1e3167eb5fbced6953c6401688d40 Reviewed-on: https://chromium-review.googlesource.com/629517Reviewed-by:
Brad Nelson <bradnelson@chromium.org> Reviewed-by:
Eric Holk <eholk@chromium.org> Commit-Queue: Deepti Gandluri <gdeepti@chromium.org> Cr-Commit-Position: refs/heads/master@{#47960}
-
- 27 Jul, 2017 1 commit
-
-
Ulan Degenbaev authored
BUG=chromium:739644 Change-Id: I6c7d0f48c959826dd2a8587d7a321be4387ef39f Reviewed-on: https://chromium-review.googlesource.com/586529Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#46936}
-
- 14 Jul, 2017 1 commit
-
-
Ulan Degenbaev authored
Currently every VirtualMemory allocation on 64-bit systems uses a random 46-bit address hint for ASLR. This leads to wired page leak on MacOS discovered by Erik Chen (see crbug.com/700928 and https://chromium-review.googlesource.com/c/557958/): "The Darwin kernel [as of macOS 10.12.5] does not clean up page directory entries [PDE] created from mmap or mach_vm_allocate, even after the region is destroyed. Using a virtual address space that is too large causes a leak of about 1 wired [can never be paged out] page per call to mmap(). The page is only reclaimed when the process is killed." This patch changes VirtualMemory to accept the hint parameter explicitly. On MacOS the hints are confined to 4GB contiguous region. Algorithm: - On startup, set heap.mmap_region_base_ to a random address. - For each mmap use heap.mmap_region_base_ + (random_offset % (4*GB)). BUG=chromium:700928 Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng Change-Id: I2ae6a024e02fbe63f940105d7920b57c19abacc6 Reviewed-on: https://chromium-review.googlesource.com/558876 Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/master@{#46656}
-
- 03 Jul, 2017 1 commit
-
-
Ulan Degenbaev authored
Change-Id: I1cb2eb715646366d516c26b11849955990dcda53 Reviewed-on: https://chromium-review.googlesource.com/558881Reviewed-by:
Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#46383}
-
- 16 Jun, 2017 1 commit
-
-
Michael Lippautz authored
Affects the Windows case where we over reserve for alignment reasons but actually already get aligned memory. Implemented on allocator level to potentially cover other platforms as well. Bug: Change-Id: I4859451f157e1e363db27413a43345fdd1990a06 Reviewed-on: https://chromium-review.googlesource.com/535454 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by:
Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#45970}
-
- 09 Jun, 2017 1 commit
-
-
Ulan Degenbaev authored
This reduces confusion with GC write barrier. The word "barrier" is reserved for GC write barrier and "fence" for memory ordering fence. BUG=v8:6474 Change-Id: Ic4352f04430eaca742b72db1580ee0a42a1ffefb Reviewed-on: https://chromium-review.googlesource.com/528103Reviewed-by:
Andreas Haas <ahaas@chromium.org> Commit-Queue: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#45813}
-
- 04 May, 2017 1 commit
-
-
Eric Holk authored
AllocateGuarded previously fell back on Allocate and then called Guard to set the protection to PROT_NONE. Linux commits RW memory, but the important thing here is to reserve the address space without committing it. This change adds a new variant of Allocate that takes explicit permission bits so that AllocateGuarded allocates non-RW memory from the beginning. Bug: v8:6320 Change-Id: I7962acbed09938951bf3bb4af2d1f302adba2547 Reviewed-on: https://chromium-review.googlesource.com/491928 Commit-Queue: Eric Holk <eholk@chromium.org> Reviewed-by:
Mircea Trofin <mtrofin@chromium.org> Reviewed-by:
Jochen Eisinger <jochen@chromium.org> Cr-Commit-Position: refs/heads/master@{#45075}
-
- 17 Mar, 2017 1 commit
-
-
jgruber authored
Default to the chromium-internal build config (instead of the more permissive no_chromium_code config). BUG=v8:5878 Review-Url: https://codereview.chromium.org/2758563002 Cr-Commit-Position: refs/heads/master@{#43909}
-