[compiler-rt] 51d913a - [sanitizer] Remove CHECK from __sanitizer_get_dtls_size

[Vitaly Buka via llvm-commits]

Author: Vitaly Buka
Date: 2024-09-17T18:21:20-07:00
New Revision: 51d913af827567e6a0999609e7e624a422781870

URL: https://github.com/llvm/llvm-project/commit/51d913af827567e6a0999609e7e624a422781870
DIFF: https://github.com/llvm/llvm-project/commit/51d913af827567e6a0999609e7e624a422781870.diff

LOG: [sanitizer] Remove CHECK from __sanitizer_get_dtls_size

The check is too strict. It works for 2.38 I have,
but not for older glibc which used different
allocation code.

The check was introduced with #108345.

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 a17a14882d0e15..0db8547268f4e2 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_tls_get_addr.cpp
@@ -14,6 +14,7 @@
 
 #include "sanitizer_allocator_interface.h"
 #include "sanitizer_atomic.h"
+#include "sanitizer_common/sanitizer_common.h"
 #include "sanitizer_flags.h"
 #include "sanitizer_platform_interceptors.h"
 
@@ -115,7 +116,6 @@ SANITIZER_INTERFACE_WEAK_DEF(uptr, __sanitizer_get_dtls_size,
   const void *start = __sanitizer_get_allocated_begin(tls_begin);
   if (!start)
     return 0;
-  CHECK_EQ(start, tls_begin);
   uptr tls_size = __sanitizer_get_allocated_size(start);
   VReport(2, "__tls_get_addr: glibc DTLS suspected; tls={%p,0x%zx}\n",
           tls_begin, tls_size);