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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2016-10-31 18:05:44 +0100
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-11-03 20:37:48 +0100
commit191739597c6d380692885cfdd8dd8aa4f31f029d (patch)
treeb3f05ce72f7a87433905698dd58371048c904812 /libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
parent7825930078208462655e107677656c45014e91b4 (diff)
microblaze: add NPTL/TLS support from GNU libc
Not perfect, but a starting point. Some tests of the test suite are failing.
Diffstat (limited to 'libc/sysdeps/linux/microblaze/jmpbuf-unwind.h')
-rw-r--r--libc/sysdeps/linux/microblaze/jmpbuf-unwind.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h b/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
index 2c1c0793c..155792b37 100644
--- a/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
+++ b/libc/sysdeps/linux/microblaze/jmpbuf-unwind.h
@@ -10,3 +10,28 @@
containing a local variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf)[0].__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) \
+ ((void *) (address) < (void *) (jmpbuf)[0].__sp)
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf regs)
+{
+ void *sp = (void *) regs[0].__sp;
+ return (uintptr_t) sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < _jmpbuf_sp (_jmpbuf) - (_adj))
+
+#endif