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[TSan] [Darwin] Fix off by one in TSAN init due to MemoryRangeIsAvailable #169008

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[TSan] [Darwin] Fix off by one in TSAN init due to MemoryRangeIsAvailable #169008

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2 changes: 1 addition & 1 deletion compiler-rt/lib/tsan/rtl/tsan_platform_mac.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -235,7 +235,7 @@ void InitializePlatformEarly() {
}
// In some configurations, the max_vm is expanded, but much of this space is
// already mapped. TSAN will not work in this configuration.
if (!MemoryRangeIsAvailable(HiAppMemEnd() - 1, HiAppMemEnd())) {
if (!MemoryRangeIsAvailable(HiAppMemEnd() - 1, HiAppMemEnd() - 1)) {
Report(
"ThreadSanitizer: Unsupported virtual memory layout: Address %p is "
"already mapped.\n",
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