| /* Copyright (C) 1999-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Philip Blundell <philb@gnu.org>, 1999. |
| |
| 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 <sys/ucontext.h> |
| #include "kernel-features.h" |
| |
| #define SIGCONTEXT siginfo_t *_si, struct ucontext * |
| #define SIGCONTEXT_EXTRA_ARGS _si, |
| |
| /* The sigcontext structure changed between 2.0 and 2.1 kernels. On any |
| modern system we should be able to assume that the "new" format will be |
| in use. */ |
| |
| #define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.arm_pc) |
| #define GET_FRAME(ctx) ADVANCE_STACK_FRAME ((void *) ctx->uc_mcontext.arm_fp) |
| #define GET_STACK(ctx) ((void *) (ctx)->uc_mcontext.arm_sp) |
| |
| #define ADVANCE_STACK_FRAME(frm) \ |
| ((struct layout *)frm - 1) |
| |
| #define CALL_SIGHANDLER(handler, signo, ctx) \ |
| (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx)) |
| |
| /* There is no reliable way to get the sigcontext unless we use a |
| three-argument signal handler. */ |
| #define __sigaction(sig, act, oact) ({ \ |
| (act)->sa_flags |= SA_SIGINFO; \ |
| (__sigaction) (sig, act, oact); \ |
| }) |
| |
| #define sigaction(sig, act, oact) ({ \ |
| (act)->sa_flags |= SA_SIGINFO; \ |
| (sigaction) (sig, act, oact); \ |
| }) |
