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Diffstat (limited to 'sysdeps/powerpc/powerpc64/setjmp-bug21895.c')
-rw-r--r--sysdeps/powerpc/powerpc64/setjmp-bug21895.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/setjmp-bug21895.c b/sysdeps/powerpc/powerpc64/setjmp-bug21895.c
new file mode 100644
index 0000000000..945a251d95
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/setjmp-bug21895.c
@@ -0,0 +1,51 @@
+/* Shared object part of test for setjmp interoperability with static
+ dlopen BZ #21895.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <string.h>
+#include <setjmp.h>
+
+/* Copy r1 adress to a local variable. */
+#define GET_STACK_POINTER(sp) \
+ ({ \
+ asm volatile ("mr %0, 1\n\t" \
+ : "=r" (sp)); \
+ })
+
+jmp_buf jb;
+void (*bar)(jmp_buf, unsigned long);
+
+void
+lbar (unsigned long sp)
+{
+ bar(jb, sp);
+ for(;;);
+}
+
+void
+foo (void)
+{
+ unsigned long sp;
+ /* Copy r1 (stack pointer) to sp. It will be use later to get
+ TOC area. */
+ GET_STACK_POINTER(sp);
+ setjmp(jb);
+ lbar(sp);
+
+ for(;;);
+}