forked from OSchip/llvm-project
947f969244
Summary: As mentioned in D69104, glibc changed ABI recently with the [[ https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=2f959dfe849e0646e27403f2e4091536496ac0f0| 2f959dfe ]] change. D69104 dealt with just 32-bit ARM, but that is just one of the many affected architectures. E.g. x86_64, i?86, riscv64, sparc 32-bit, s390 31-bit are affected too (and various others). This patch instead of adding a long list of further architectures that wouldn't be checked ever next to arm 32-bit changes the structures to match the 2.31 layout and performs the checking on Linux for ipc_perm mode position/size only on non-Linux or on Linux with glibc 2.31 or later. I think this matches what is done for aarch64 already. If needed, we could list architectures that haven't changed ABI (e.g. powerpc), so that they would be checked even with older glibcs. AFAIK sanitizers don't actually use ipc_perm.mode and so all they care about is the size and alignment of the whole structure. Note, s390 31-bit and arm 32-bit big-endian changed ABI even further, there will now be shmctl with old symbol version and shmctl@@GLIBC_2.31 which will be incompatible. I'm afraid this isn't really solvable unless the sanitizer libraries are symbol versioned and use matching symbol versions to glibc symbols for stuff they intercept, plus use dlvsym. This patch doesn't try to address that. Patch by Jakub Jelinek. Reviewers: kcc, eugenis, dvyukov Reviewed By: eugenis Subscribers: jyknight, kristof.beyls, fedor.sergeev, simoncook, PkmX, s.egerton, steven.zhang, #sanitizers, llvm-commits Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D70662 |
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| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .arcconfig | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| README.txt | ||
README.txt
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================