From bbab82c25da9b504c0804119840de7aeab0eeeba Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Tue, 4 Aug 2015 12:35:50 +0200 Subject: Properly terminate FDE in makecontext for ix86 (bug 18635) --- sysdeps/unix/sysv/linux/i386/makecontext.S | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sysdeps/unix/sysv/linux/i386/makecontext.S') diff --git a/sysdeps/unix/sysv/linux/i386/makecontext.S b/sysdeps/unix/sysv/linux/i386/makecontext.S index 8364fb98ee..bcf8de68ef 100644 --- a/sysdeps/unix/sysv/linux/i386/makecontext.S +++ b/sysdeps/unix/sysv/linux/i386/makecontext.S @@ -83,6 +83,10 @@ ENTRY(__makecontext) #else movl $L(exitcode), (%edx) #endif + /* We need to terminate the FDE here instead of after ret because + the unwinder looks at ra-1 for unwind information. */ + cfi_endproc + /* 'makecontext' returns no value. */ ret @@ -92,7 +96,6 @@ ENTRY(__makecontext) the context 'makecontext' manipulated at the time of the 'makecontext' call. If the pointer is NULL the process must terminate. */ - cfi_endproc L(exitcode): /* This removes the parameters passed to the function given to 'makecontext' from the stack. EBX contains the number of -- cgit 1.4.1