summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/metag/jmpbuf-unwind.h
diff options
context:
space:
mode:
authorWaldemar Brodkorb <wbx@openadk.org>2015-11-13 06:37:45 +0100
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2015-11-13 18:28:42 +0100
commitd0039e5ac5fe09e04c849c46640c191caa4f9eda (patch)
tree391394f9ca391de13ffa5bb8caa92dff3c28f078 /libc/sysdeps/linux/metag/jmpbuf-unwind.h
parent5aa5761498f15a62d3523591384a8b6cd6f3dadc (diff)
metag: add missing header file
When installing header files a warning is generated, because the header is mandatory.
Diffstat (limited to 'libc/sysdeps/linux/metag/jmpbuf-unwind.h')
-rw-r--r--libc/sysdeps/linux/metag/jmpbuf-unwind.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/metag/jmpbuf-unwind.h b/libc/sysdeps/linux/metag/jmpbuf-unwind.h
new file mode 100644
index 000000000..175cd7ab0
--- /dev/null
+++ b/libc/sysdeps/linux/metag/jmpbuf-unwind.h
@@ -0,0 +1,22 @@
+/*
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <setjmp.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[JB_SP]))
+
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include <stdint.h>
+#include <unwind.h>
+
+#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)[JB_SP] - (_adj))
+#endif