/* * CRIS gdb server stub * * Copyright (c) 2003-2005 Fabrice Bellard * Copyright (c) 2013 SUSE LINUX Products GmbH * * This 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. * * This 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 this library; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu/osdep.h" #include "cpu.h" #include "exec/gdbstub.h" int crisv10_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) { CRISCPU *cpu = CRIS_CPU(cs); CPUCRISState *env = &cpu->env; if (n < 15) { return gdb_get_reg32(mem_buf, env->regs[n]); } if (n == 15) { return gdb_get_reg32(mem_buf, env->pc); } if (n < 32) { switch (n) { case 16: return gdb_get_reg8(mem_buf, env->pregs[n - 16]); case 17: return gdb_get_reg8(mem_buf, env->pregs[n - 16]); case 20: case 21: return gdb_get_reg16(mem_buf, env->pregs[n - 16]); default: if (n >= 23) { return gdb_get_reg32(mem_buf, env->pregs[n - 16]); } break; } } return 0; } int cris_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) { CRISCPU *cpu = CRIS_CPU(cs); CPUCRISState *env = &cpu->env; uint8_t srs; srs = env->pregs[PR_SRS]; if (n < 16) { return gdb_get_reg32(mem_buf, env->regs[n]); } if (n >= 21 && n < 32) { return gdb_get_reg32(mem_buf, env->pregs[n - 16]); } if (n >= 33 && n < 49) { return gdb_get_reg32(mem_buf, env->sregs[srs][n - 33]); } switch (n) { case 16: return gdb_get_reg8(mem_buf, env->pregs[0]); case 17: return gdb_get_reg8(mem_buf, env->pregs[1]); case 18: return gdb_get_reg32(mem_buf, env->pregs[2]); case 19: return gdb_get_reg8(mem_buf, srs); case 20: return gdb_get_reg16(mem_buf, env->pregs[4]); case 32: return gdb_get_reg32(mem_buf, env->pc); } return 0; } int cris_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) { CRISCPU *cpu = CRIS_CPU(cs); CPUCRISState *env = &cpu->env; uint32_t tmp; if (n > 49) { return 0; } tmp = ldl_p(mem_buf); if (n < 16) { env->regs[n] = tmp; } if (n >= 21 && n < 32) { env->pregs[n - 16] = tmp; } /* FIXME: Should support function regs be writable? */ switch (n) { case 16: return 1; case 17: return 1; case 18: env->pregs[PR_PID] = tmp; break; case 19: return 1; case 20: return 2; case 32: env->pc = tmp; break; } return 4; }