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-rw-r--r--libc/sysdeps/linux/arm/jmpbuf-unwind.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arm/jmpbuf-unwind.h b/libc/sysdeps/linux/arm/jmpbuf-unwind.h
index d83c6813b..d7b49e224 100644
--- a/libc/sysdeps/linux/arm/jmpbuf-unwind.h
+++ b/libc/sysdeps/linux/arm/jmpbuf-unwind.h
@@ -10,3 +10,20 @@
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <stdint.h>
+#include <unwind.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+#undef _JMPBUF_UNWINDS
+#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
+ ((void *) (address) < (void *) demangle (jmpbuf[__JMP_BUF_SP]))
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[__JMP_BUF_SP] - (_adj))
+#endif