SH: makecontext: exit (0) if uc_link is the null pointer.

git-mirror · Jul 17, 2012 · 07cbfc2 · 07cbfc2
1 parent f7db317
commit 07cbfc2
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/ChangeLog b/ChangeLog
@@ -1,5 +1,8 @@
 2012-07-17  Thomas Schwinge  <thomas@codesourcery.com>
 
+	* sysdeps/unix/sysv/linux/sh/makecontext.S (.Lexitcode): Preserve
+	zero value for regular exit case.
+
 	* sysdeps/unix/sysv/linux/x86_64/__start_context.S
 	(__start_context): Preserve zero value for regular exit case.
 

diff --git a/sysdeps/unix/sysv/linux/sh/makecontext.S b/sysdeps/unix/sysv/linux/sh/makecontext.S
@@ -128,14 +128,15 @@ ENTRY(__makecontext)
 	cfi_restore (pr)
 	/* If this returns (which can happen if the syscall fails) we'll exit
 	   the program with the return error value (-1).  */
+	mov	r0, r4
 
 2:
 	mov.l	.Lexit, r1
 #ifdef PIC
 	add	r12, r1
 #endif
 	jsr	@r1
-	 mov	r0, r4
+	 nop
 	/* The 'exit' call should never return.  In case it does cause the
 	   process to terminate.  */
 	ABORT_INSTRUCTION_ASM