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| author | Thomas Schwinge <thomas@codesourcery.com> | 2012-07-17 10:06:02 +0200 |
|---|---|---|
| committer | Thomas Schwinge <thomas@codesourcery.com> | 2012-07-17 10:06:02 +0200 |
| commit | f7db31703ab2e11b162d4e0e3b4af0c1c971b6cd (patch) | |
| tree | 3c1f2de92251e71867338b86b94fcbfff9a0a7fb | |
| parent | dc97c227c95dd521594f1eaa472399b9fba03b2a (diff) | |
| download | glibc-f7db31703ab2e11b162d4e0e3b4af0c1c971b6cd.tar.gz | |
x86_64: makecontext: exit (0) if uc_link is the null pointer.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/__start_context.S | 5 |
2 files changed, 8 insertions, 2 deletions
@@ -1,4 +1,9 @@ 2012-07-17 Thomas Schwinge <thomas@codesourcery.com> + + * sysdeps/unix/sysv/linux/x86_64/__start_context.S + (__start_context): Preserve zero value for regular exit case. + +2012-07-17 Thomas Schwinge <thomas@codesourcery.com> Andreas Krebbel <Andreas.Krebbel@de.ibm.com> * manual/setjmp.texi (setcontext): Clarify normal process diff --git a/sysdeps/unix/sysv/linux/x86_64/__start_context.S b/sysdeps/unix/sysv/linux/x86_64/__start_context.S index 77d322e046..9f2ee23736 100644 --- a/sysdeps/unix/sysv/linux/x86_64/__start_context.S +++ b/sysdeps/unix/sysv/linux/x86_64/__start_context.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2002. @@ -39,8 +39,9 @@ ENTRY(__start_context) call JUMPTARGET(__setcontext) /* If this returns (which can happen if the syscall fails) we'll exit the program with the return error value (-1). */ + movq %rax,%rdi -2: movq %rax,%rdi +2: call HIDDEN_JUMPTARGET(exit) /* The 'exit' call should never return. In case it does cause the process to terminate. */ |