Changeset: 2657fe29eebf for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/2657fe29eebf
Modified Files:
cmake/monetdb-toolchain.cmake
monetdb_config.h.in
Branch: default
Log Message:
No unaligned memory access When using the undefined behavior sanitizer.
diffs (33 lines):
diff --git a/cmake/monetdb-toolchain.cmake b/cmake/monetdb-toolchain.cmake
--- a/cmake/monetdb-toolchain.cmake
+++ b/cmake/monetdb-toolchain.cmake
@@ -43,7 +43,6 @@ function(monetdb_default_compiler_option
if(${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
add_compile_options("-fsanitize=undefined")
add_compile_options("-fno-omit-frame-pointer")
- add_compile_definitions(UNDEFINED)
if(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.13.0")
add_link_options("-fsanitize=undefined")
else()
diff --git a/monetdb_config.h.in b/monetdb_config.h.in
--- a/monetdb_config.h.in
+++ b/monetdb_config.h.in
@@ -208,7 +208,8 @@
#cmakedefine WITH_TCMALLOC 1
#cmakedefine WITH_MALLOC "@WITH_MALLOC@"
-#cmakedefine SANITIZER 1
+#cmakedefine SANITIZER 1 /* address sanitizer */
+#cmakedefine UNDEFINED 1 /* undefined behavior sanitizer */
#define BUILD_TYPE "@BUILD_TYPE@"
#define EXTRA_C_FLAGS "@EXTRA_C_FLAGS@"
@@ -495,7 +496,7 @@ strndup(const char *s, size_t n)
}
#endif
-#if !defined(SANITIZER) && (defined(__x86_64__) || defined(__amd64__))
+#if !defined(SANITIZER) && !defined(UNDEFINED) && (defined(__x86_64__) ||
defined(__amd64__))
/* we can do unaligned access (e.g. read 8-byte value from a location
* which is not a multiple of 8; the list can be extended when we learn
* about more architectures */
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