| /* Definition for thread-local data handling. nptl/x32 version. |
| Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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/>. */ |
| |
| #ifndef _X32_TLS_H |
| #define _X32_TLS_H 1 |
| |
| #include <sysdeps/x86_64/tls.h> |
| |
| #ifndef __ASSEMBLER__ |
| |
| /* X32 doesn't support 32-bit indirect calls via memory. Instead, we |
| load the 32-bit address from memory into the lower 32 bits of the |
| return-value register, which will automatically zero-extend the upper |
| 32 bits of the return-value register. We then do the indirect call |
| via the 64-bit return-value register. */ |
| # undef CALL_THREAD_FCT |
| # define CALL_THREAD_FCT(descr) \ |
| ({ void *__res; \ |
| asm volatile ("movl %%fs:%P2, %%edi\n\t" \ |
| "movl %%fs:%P1, %k0\n\t" \ |
| "callq *%q0" \ |
| : "=a" (__res) \ |
| : "i" (offsetof (struct pthread, start_routine)), \ |
| "i" (offsetof (struct pthread, arg)) \ |
| : "di", "si", "cx", "dx", "r8", "r9", "r10", "r11", \ |
| "memory", "cc"); \ |
| __res; }) |
| |
| #endif /* __ASSEMBLER__ */ |
| |
| #endif /* x32/tls.h */ |
