diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/__start_context.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/__start_context.S | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/__start_context.S b/sysdeps/unix/sysv/linux/x86_64/__start_context.S deleted file mode 100644 index d05ddc6a01..0000000000 --- a/sysdeps/unix/sysv/linux/x86_64/__start_context.S +++ /dev/null @@ -1,49 +0,0 @@ -/* Copyright (C) 2002-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Jaeger <aj@suse.de>, 2002. - - 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 <sysdep.h> - -/* This is the helper code which gets called if a function which is - registered with 'makecontext' returns. In this case we have to - install the context listed in the uc_link element of the context - 'makecontext' manipulated at the time of the 'makecontext' call. - If the pointer is NULL the process must terminate. */ - - -ENTRY(__start_context) - /* This removes the parameters passed to the function given to - 'makecontext' from the stack. RBX contains the address - on the stack pointer for the next context. */ - movq %rbx, %rsp - - /* Don't use pop here so that stack is aligned to 16 bytes. */ - movq (%rsp), %rdi /* This is the next context. */ - testq %rdi, %rdi - je 2f /* If it is zero exit. */ - - call __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: - call HIDDEN_JUMPTARGET(exit) - /* The 'exit' call should never return. In case it does cause - the process to terminate. */ - hlt -END(__start_context) |