1 /* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <http://www.gnu.org/licenses/>. */ 18 19 #define SIGCONTEXT struct sigcontext 20 #define SIGCONTEXT_EXTRA_ARGS 21 #define GET_PC(ctx) ((void *) ctx.eip) 22 #define GET_FRAME(ctx) ((void *) ctx.ebp) 23 #define GET_STACK(ctx) ((void *) ctx.esp_at_signal) 24 #define CALL_SIGHANDLER(handler, signo, ctx) \ 25 do { \ 26 int __tmp1, __tmp2, __tmp3, __tmp4; \ 27 __asm__ __volatile__ ("movl\t%%esp, %%edi\n\t" \ 28 "andl\t$-16, %%esp\n\t" \ 29 "subl\t%8, %%esp\n\t" \ 30 "movl\t%%edi, %c8-4(%%esp)\n\t" \ 31 "movl\t%1, 0(%%esp)\n\t" \ 32 "leal\t4(%%esp), %%edi\n\t" \ 33 "cld\n\t" \ 34 "rep\tmovsl\n\t" \ 35 "call\t*%0\n\t" \ 36 "cld\n\t" \ 37 "movl\t%9, %%ecx\n\t" \ 38 "subl\t%%edi, %%esi\n\t" \ 39 "leal\t4(%%esp,%%esi,1), %%edi\n\t" \ 40 "leal\t4(%%esp), %%esi\n\t" \ 41 "rep\tmovsl\n\t" \ 42 "movl\t%c8-4(%%esp), %%esp\n\t" \ 43 : "=a" (__tmp1), "=d" (__tmp2), "=S" (__tmp3), \ 44 "=c" (__tmp4) \ 45 : "0" (handler), "1" (signo), "2" (&ctx), \ 46 "3" (sizeof (struct sigcontext) / 4), \ 47 "n" ((sizeof (struct sigcontext) + 19) & ~15), \ 48 "i" (sizeof (struct sigcontext) / 4) \ 49 : "cc", "edi"); \ 50 } while (0) 51