/* -*-comment-start: "//";comment-end:""-*- * GNU Mes --- Maxwell Equations of Software * Copyright © 2016,2017,2018 Jan (janneke) Nieuwenhuizen * * This file is part of GNU Mes. * * GNU Mes is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or (at * your option) any later version. * * GNU Mes 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GNU Mes. If not, see . */ #include #include // *INDENT-OFF* long __sys_call (long sys_call) { long r; asm ( "mov %1,%%rax\n\t" "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call) : "rax" ); return r; } long __sys_call1 (long sys_call, long one) { long r; asm ( "mov %1,%%rax\n\t" "mov %2,%%rdi\n\t" "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call), "rm" (one) : "rax", "rdi" ); return r; } long __sys_call2 (long sys_call, long one, long two) { long r; asm ( "mov %1,%%rax\n\t" "mov %2,%%rdi\n\t" "mov %3,%%rsi\n\t" "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call), "rm" (one), "rm" (two) : "rax", "rdi", "rsi" ); return r; } long __sys_call3 (long sys_call, long one, long two, long three) { long r; asm ( "mov %2,%%rdi\n\t" "mov %3,%%rsi\n\t" "mov %4,%%rdx\n\t" "mov %1,%%rax\n\t" "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call), "rm" (one), "rm" (two), "rm" (three) : "rax", "rdi", "rsi", "rdx" ); return r; } long __sys_call4 (long sys_call, long one, long two, long three, long four) { long r; asm ( "mov %2,%%rdi\n\t" "mov %3,%%rsi\n\t" "mov %4,%%rdx\n\t" "mov %5,%%r10\n\t" "mov %1,%%rax\n\t" // ); // asm ( "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call), "rm" (one), "rm" (two), "rm" (three), "rm" (four) : "rax", "rdi", "rsi", "rdx", "r10" ); return r; } // *INDENT-ON* long _sys_call (long sys_call) { long r = __sys_call (sys_call); if (r < 0) { errno = -r; r = -1; } else errno = 0; return r; } long _sys_call1 (long sys_call, long one) { long r = __sys_call1 (sys_call, one); if (r < 0) { errno = -r; r = -1; } else errno = 0; return r; } long _sys_call2 (long sys_call, long one, long two) { long r = __sys_call2 (sys_call, one, two); if (r < 0) { errno = -r; r = -1; } else errno = 0; return r; } long _sys_call3 (long sys_call, long one, long two, long three) { long r = __sys_call3 (sys_call, one, two, three); if (r < 0) { errno = -r; r = -1; } else errno = 0; return r; } long _sys_call4 (long sys_call, long one, long two, long three, long four) { long r = __sys_call4 (sys_call, one, two, three, four); if (r < 0) { errno = -r; r = -1; } else errno = 0; return r; } long _sys_call6 (long sys_call, long one, long two, long three, long four, long five, long six) { long r; asm ( "mov %2,%%rdi\n\t" "mov %3,%%rsi\n\t" "mov %4,%%rdx\n\t" "mov %5,%%r10\n\t" "mov %6,%%r8\n\t" "mov %7,%%r9\n\t" "mov %1,%%rax\n\t" // ); // asm ( "syscall \n\t" "mov %%rax,%0\n\t" : "=r" (r) : "rm" (sys_call), "rm" (one), "rm" (two), "rm" (three), "rm" (four), "rm" (five), "rm" (six) : "rax", "rdi", "rsi", "rdx", "r10", "r8", "r9" ); return r; }