| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2024-03-03 | For macppc, add missing CFI for cr2, cr3, cr4 | George Koehler | |
| clang -S was missing a line like ".cfi_offset cr2, -16" in functions that spill cr2 (or cr3, cr4) to the stack. This was breaking a few C++ exceptions. This fix adds the missing CFI. This will fix the C++ exception that was crashing egdb from ports/devel/gdb when you did "q to quit" in the pager. ok kettenis@ tobhe@ | |||
| 2024-02-27 | Linux still doesn't actually implement IBT for userland. And by the pace | Mark Kettenis | |
| things are going, it will take another decade before it does. But OpenBSD has it enabled *by default* already. Drop the #ifdef __linux__. This should hurt other OSes when they finally catch up with us. ok robert@, tb@ | |||
| 2024-02-19 | Revert the change that enabled retpoline thunks by default. The use of | Mark Kettenis | |
| retpolines makes IBT less useful and we have enabled additional mitigations in our kernel now that should make them (mostly) unnecessary. ok guenther@ | |||
| 2024-02-19 | Remove "noretpolineplt" from the list of known -z flags. Missed in the | Mark Kettenis | |
| previous commit. ok guenther@ | |||
| 2024-02-12 | Revert the change that enables retpoline PLTs by default. While these | Mark Kettenis | |
| provide a mitigation against branch speculation attacks, they also make IBT control flow integrity less effective. Our kernel now uses IBPB to as a mitigation against branch speculation attacks, so we can disable retpoline PLTs again. ok deraadt@ | |||
| 2024-02-07 | riscv64 fix: Handle relaxation reductions of more than 65536 bytes | Jeremie Courreges-Anglas | |
| Upstream commit: https://github.com/llvm/llvm-project/commit/9d37ea95df1b84cca9b5e954d8964c976a5e303e Already needed at least by ports/math/hdf5, prerequisite if we want to enable linker relaxation (clang upstream defaults). ok kettenis@ | |||
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2024-02-03 | On OpenBSD we always want IBT-compatible PLT entries. Currently we use | Mark Kettenis | |
| repoline PLT entries that were changed to include the necessary endbr64 instructions. But with -Wl,-znoretpolineplt we would still emit non-BIT PLT entries under certain circumstances. Fix this. ok deraadt@, guenther@ | |||
| 2024-01-26 | merge llvm libcxx 16.0.6 | Robert Nagy | |
| 2024-01-26 | import of libcxx-16.0.6 | Robert Nagy | |
| 2024-01-26 | merge llvm libcxxabi 16.0.6 | Robert Nagy | |
| 2021-04-28 | Import libc++ 11.1.0 release. | Patrick Wildt | |
| 2021-01-02 | Import libc++ 10.0.1 release. | Patrick Wildt | |
| 2024-01-26 | import of libcxxabi 16.0.6 | Robert Nagy | |
| 2024-01-26 | merge llvm libunwind 16.0.6 | Robert Nagy | |
| 2024-01-26 | import of llvm libunwind 16.0.6 | Robert Nagy | |
| 2024-01-26 | merge llvm compiler-rt 16.0.6 | Robert Nagy | |
| 2024-01-26 | import llvm compiler-rt 16.0.6 | Robert Nagy | |
| 2021-01-02 | Import libc++abi 10.0.1 release. | Patrick Wildt | |
| 2020-08-10 | Import compiler-rt 10.0.1 release. | Patrick Wildt | |
| ok kettenis@ | |||
| 2023-12-04 | protect access to the gnu warning map with a mutex to avoid random crashes | Robert Nagy | |
| discussed with, tested by and ok tb@ | |||
| 2023-12-03 | Collect .openbsd.syscalls sections into a new PT_OPENBSD_SYSCALLS segment. | Mark Kettenis | |
| This will be used soon to pin system calls to designated call sites. ok deraadt@ | |||
| 2023-11-26 | Add arm64 bti pads for range extension thunks. | Tobias Heider | |
| Large arm64 binaries like chromium use range extension thunks for accessing plt entries. Add bti landing pads for the additional indirection. upstream commit: 60827df765156cee6cca3dc5049388dde9dac1c0 ok kettenis@ | |||
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2023-11-20 | Stop erroring out when .gcc_except_table relocs point at discarded sections | Jeremie Courreges-Anglas | |
| lang/gcc on riscv64 has a wart, it creates such relocs which upset ld.lld. The workaround I have used in lang/gcc since Sep 2022 doesn't work any more, so ask ld.lld to be more lenient. This will let the fortran ports and friends build on riscv64. clang has fixed since some time already, but our lang/gcc port will likely keep that wart for some time. Upstream report: https://reviews.llvm.org/D83244 Input and ok kettenis@ | |||
| 2023-11-20 | Code changes between llvm 13 and 16 mean that we have to drop the final dot | Mark Kettenis | |
| for the .openbsd.randomdata and .openbsd.mutable section merging code. ok jca@ | |||
| 2023-11-20 | Restore lost patch: downgrade RISCV ABI mismatch error to a warning | Jeremie Courreges-Anglas | |
| This lets lld link code with object files created with ld -b binary, as used by several ports (mupdf, postgresql-pllua, various games). Upstream report with an unfinished diff: https://reviews.llvm.org/D106378 ok gkoehler@ kettenis@ | |||
| 2023-11-20 | only enable bti and pac by default on arm64 | Jonathan Gray | |
| before this change, clang on armv7 defined __ARM_FEATURE_BTI_DEFAULT and __ARM_FEATURE_PAC_DEFAULT which broke the build of llvm libunwind ok kettenis@ deraadt@ | |||
| 2023-11-19 | Disable LOAD_STACK_GUARD on OpenBSD/armv7. It seems the implementation | Mark Kettenis | |
| is incomplete resulting in SIGSEGV with the OpenBSD default options. ok deraadt@, jsg@ | |||
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2023-11-19 | Fix cc -ftrapping-math on macppc | George Koehler | |
| Handle CALL_RM like CALL for 32-bit ELF. If a function call has the strictfp attribute, its opcode changes from CALL to CALL_RM. If a call uses the secure PLT, then it must getGlobalBaseReg() to set r30. After I rebuilt xenocara/lib/pixman with this change, Xorg stopped crashing on my macppc. pixman uses cc -ftrapping-math which puts strictfp on each function call. https://github.com/llvm/llvm-project/pull/72758 ok jca@ tobhe@ deraadt@ | |||
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2023-11-16 | downgrade -Wint-conversion to a warning | Robert Nagy | |
| autoconf might misinterpet this so we need to do a full sweep before it can be upgraded to an error again | |||
| 2023-11-12 | revert https://reviews.llvm.org/D135402 for now to shut lld up until we fix | Robert Nagy | |
| all the symbol lists | |||
| 2023-11-12 | Fix parsing of branch target protection options on arm64 to enable | Mark Kettenis | |
| BTI and PAC again by default on OpenBSD. ok robert@ | |||
| 2023-11-12 | flip the ignoreFunctionAddressEquality flag; lost in merging changes from ↵ | Robert Nagy | |
| llvm-13 | |||
| 2023-11-11 | merge lldb-16.0.6 | Robert Nagy | |
| 2023-11-11 | import lldb from LLVM-16.0.6 | Robert Nagy | |
| 2023-11-11 | merge lld-16.0.6 | Robert Nagy | |
| 2023-11-11 | import of lld from LLVM-16.0.6 | Robert Nagy | |
| 2023-11-11 | merge clang-16.0.6 | Robert Nagy | |
| 2023-11-11 | import of clang from LLVM-16.0.6 | Robert Nagy | |
| 2023-11-11 | merge llvm-16.0.6 | Robert Nagy | |
| 2023-11-11 | import of llvm from LLVM 16.0.6 | Robert Nagy | |
| 2021-04-28 | Import LLVM 11.1.0 release including clang, lld and lldb. | Patrick Wildt | |
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2020-08-03 | Import LLVM 10.0.0 release including clang, lld and lldb. | Patrick Wildt | |
| ok hackroom tested by plenty | |||
| 2023-10-23 | create __OpenBSD__ versions that use futex() with the correct number | Theo de Raadt | |
| of arguments and without using syscall(). the glibc people should be ashamed of the mess they created. ok miod | |||
| 2021-01-02 | Import libc++abi 10.0.1 release. | Patrick Wildt | |
| 2023-07-20 | Make sure -msign-return-address doesn't disable BTI support. | Mark Kettenis | |
| ok deraadt@ | |||
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