[llvm-branch-commits] [compiler-rt] dd3f250 - apply kDtvOffset correctly

[Vitaly Buka via llvm-branch-commits]

Author: Vitaly Buka
Date: 2024-09-10T17:59:59-07:00
New Revision: dd3f250c25b9284c32e414c8ef762386328a914d

URL: https://github.com/llvm/llvm-project/commit/dd3f250c25b9284c32e414c8ef762386328a914d
DIFF: https://github.com/llvm/llvm-project/commit/dd3f250c25b9284c32e414c8ef762386328a914d.diff

LOG: apply kDtvOffset correctly

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp

Removed: 
    


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diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp
index 6e77676fabf091..bf84a2ff60c91c 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp
@@ -152,8 +152,8 @@ DTLS::DTV *DTLS_on_tls_get_addr(void *arg_void, void *res,
     tls_size = 0;
   }
   if (tls_size) {
-    CHECK_LE(tls_beg, reinterpret_cast<uptr>(res) + kDtvOffset);
-    CHECK_LT(reinterpret_cast<uptr>(res) + kDtvOffset, tls_beg + tls_size);
+    CHECK_LE(tls_beg, reinterpret_cast<uptr>(res) - kDtvOffset);
+    CHECK_LT(reinterpret_cast<uptr>(res) - kDtvOffset, tls_beg + tls_size);
   }
   dtv->beg = tls_beg;
   dtv->size = tls_size;