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bpo-42268: Fail the configure step if the selected compiler doesn't support memory sanitizer (GH-29806)
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@ -0,0 +1,2 @@
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Fail the configure step if the selected compiler doesn't support memory
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sanitizer. Patch by Pablo Galindo
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36
configure
vendored
36
configure
vendored
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@ -9920,8 +9920,44 @@ if test "${with_memory_sanitizer+set}" = set; then :
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withval=$with_memory_sanitizer;
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $withval" >&5
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$as_echo "$withval" >&6; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fsanitize=memory" >&5
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$as_echo_n "checking whether C compiler accepts -fsanitize=memory... " >&6; }
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if ${ax_cv_check_cflags___fsanitize_memory+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ax_check_save_flags=$CFLAGS
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CFLAGS="$CFLAGS -fsanitize=memory"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main ()
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{
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"; then :
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ax_cv_check_cflags___fsanitize_memory=yes
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else
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ax_cv_check_cflags___fsanitize_memory=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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CFLAGS=$ax_check_save_flags
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags___fsanitize_memory" >&5
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$as_echo "$ax_cv_check_cflags___fsanitize_memory" >&6; }
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if test "x$ax_cv_check_cflags___fsanitize_memory" = xyes; then :
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BASECFLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 -fno-omit-frame-pointer $BASECFLAGS"
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LDFLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 $LDFLAGS"
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else
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as_fn_error $? "The selected compiler doesn't support memory sanitizer" "$LINENO" 5
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fi
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# MSan works by controlling memory allocation, our own malloc interferes.
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with_pymalloc="no"
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@ -2565,8 +2565,10 @@ AC_ARG_WITH(memory_sanitizer,
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[enable MemorySanitizer allocation error detector, 'msan' (default is no)]),
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[
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AC_MSG_RESULT($withval)
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AX_CHECK_COMPILE_FLAG([-fsanitize=memory],[
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BASECFLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 -fno-omit-frame-pointer $BASECFLAGS"
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LDFLAGS="-fsanitize=memory -fsanitize-memory-track-origins=2 $LDFLAGS"
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],[AC_MSG_ERROR([The selected compiler doesn't support memory sanitizer])])
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# MSan works by controlling memory allocation, our own malloc interferes.
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with_pymalloc="no"
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],
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