forked from OSchip/llvm-project
cc1f318b5a
4.1+ Linux kernels map pie binaries at 0x55: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d1fd836dcf00d2028c700c7e44d2c23404062c90 Currently tsan does not support app memory at 0x55 (https://github.com/google/sanitizers/issues/503). Older kernels also map pie binaries at 0x55 when ASLR is disables (most notably under gdb). This change extends tsan mapping for linux/x86_64 to cover 0x554-0x568 app range and fixes both 4.1+ kernels and gdb. This required to slightly shrink low and high app ranges and move heap. The mapping become even more non-linear, since now we xor lower bits. Now even a continuous app range maps to split, intermixed shadow ranges. This breaks ShadowToMemImpl as it assumes linear mapping at least within a continuous app range (however it turned out to be already broken at least on arm64/42-bit vma as uncovered by r281970). So also change ShadowToMemImpl to hopefully a more robust implementation that does not assume a linear mapping. llvm-svn: 282152 |
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| .. | ||
| BlocksRuntime | ||
| asan | ||
| builtins | ||
| cfi | ||
| dfsan | ||
| esan | ||
| interception | ||
| lsan | ||
| msan | ||
| profile | ||
| safestack | ||
| sanitizer_common | ||
| scudo | ||
| tsan | ||
| ubsan | ||
| xray | ||
| CMakeLists.txt | ||
| lit.common.cfg | ||
| lit.common.configured.in | ||