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46cb8d9a32
Implements for sv39 and sv48 VMA layout. Userspace only has access to the bottom half of vma range. The top half is used by kernel. There is no dedicated vsyscall or heap segment. PIE program is allocated to start at TASK_SIZE/3*2. Maximum ASLR is ARCH_MMAP_RND_BITS_MAX+PAGE_SHIFT=24+12=36 Loader, vdso and other libraries are allocated below stack from the top. Also change RestoreAddr to use 4 bits to accommodate MappingRiscv64_48 Reviewed by: MaskRay, dvyukov, asb, StephenFan, luismarques, jrtc27, hiraditya, vitalybuka Differential Revision: https://reviews.llvm.org/D145214 D145214 was reverted because one file was missing in the latest commit. Luckily the file was there in the previous commit, probably the author missed uploading that file with latest commit. Co-authored-by: Alex Fan <alex.fan.q@gmail.com> |
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| cmake | ||
| docs | ||
| include | ||
| lib | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-tidy | ||
| .gitignore | ||
| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.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. ================================