xtensa-uclinux uses bFLT executable file format that cannot relocate
fields representing offsets from data to code. C++ objects built as PIC
use offsets to encode FDE structures. As a result C++ exception handling
doesn't work correctly on xtensa-uclinux. Don't use PIC by default on
xtensa-uclinux.
gcc/
2018-11-05 Max Filippov <jcmvbkbc@gmail.com>
* config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0.
From-SVN: r265823
+2018-11-05 Max Filippov <jcmvbkbc@gmail.com>
+
+ * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0.
+
2018-11-05 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/87871
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
-/* Always enable "-fpic" for Xtensa Linux. */
-#define XTENSA_ALWAYS_PIC 1
+/* Don't enable "-fpic" for Xtensa uclinux. */
+#define XTENSA_ALWAYS_PIC 0
#undef TARGET_LIBC_HAS_FUNCTION
#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function