/* Copyright (C) 1991, 1992 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 Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include /* Store the calling environment in ENV, also saving the signal mask if SAVEMASK is nonzero. Return 0. */ int DEFUN(sigsetjmp, (env, savemask), sigjmp_buf env AND int savemask) { if (savemask) env[0].__savemask = sigprocmask(SIG_BLOCK, (sigset_t *) NULL, &env[0].__sigmask) == 0; else env[0].__savemask = 0; #define REGS \ REG (bx);\ REG (si);\ REG (di) /* Save the general registers. */ #define REG(xx) asm volatile ("movl %%e" #xx ",%0" : \ "=m" ((long int) ((env[0].__jmpbuf)[0].__##xx)) : ) REGS; /* Save the return PC. */ (env[0].__jmpbuf)[0].__pc = (PTR) ((PTR *) &env)[-1]; /* Save caller's FP, not our own. */ (env[0].__jmpbuf)[0].__bp = (PTR) ((PTR *) &env)[-2]; /* Save caller's SP, not our own. */ (env[0].__jmpbuf)[0].__sp = (PTR) &env; return 0; }