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Hi!
I pushed the following as commit
967705fee12b4c02456fedbeb4c0dc6e79469ca7:
* sysdeps/sh/abort-instr.h: New file.
* sysdeps/unix/sysv/linux/sh/makecontext.S (.Lexitcode): Terminate the
process in case exit returns.
diff --git a/sysdeps/sh/abort-instr.h b/sysdeps/sh/abort-instr.h
new file mode 100644
index 0000000..69381ae
--- /dev/null
+++ b/sysdeps/sh/abort-instr.h
@@ -0,0 +1,3 @@
+/* An instruction which should crash any program is `sleep'. */
+#define ABORT_INSTRUCTION_ASM sleep
+#define ABORT_INSTRUCTION asm ("sleep")
diff --git a/sysdeps/unix/sysv/linux/sh/makecontext.S b/sysdeps/unix/sysv/linux/sh/makecontext.S
index a847bb6..ec9ce91 100644
--- a/sysdeps/unix/sysv/linux/sh/makecontext.S
+++ b/sysdeps/unix/sysv/linux/sh/makecontext.S
@@ -17,6 +17,7 @@
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
+#include <abort-instr.h>
#include "ucontext_i.h"
@@ -124,9 +125,9 @@ ENTRY(__makecontext)
#endif
jsr @r1
mov r0, r4
-0:
- bra 0b
- nop
+ /* The 'exit' call should never return. In case it does cause the
+ process to terminate. */
+ ABORT_INSTRUCTION_ASM
.align 2
#ifdef PIC
GrÃÃe,
Thomas
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