root / target-s390x / gdbstub.c @ 986a2998
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/*
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* s390x gdb server stub
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*
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* Copyright (c) 2003-2005 Fabrice Bellard
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* Copyright (c) 2013 SUSE LINUX Products GmbH
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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static int cpu_gdb_read_register(CPUS390XState *env, uint8_t *mem_buf, int n) |
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{ |
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uint64_t val; |
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int cc_op;
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switch (n) {
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case S390_PSWM_REGNUM:
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cc_op = calc_cc(env, env->cc_op, env->cc_src, env->cc_dst, env->cc_vr); |
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val = deposit64(env->psw.mask, 44, 2, cc_op); |
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return gdb_get_regl(mem_buf, val);
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case S390_PSWA_REGNUM:
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return gdb_get_regl(mem_buf, env->psw.addr);
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case S390_R0_REGNUM ... S390_R15_REGNUM:
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return gdb_get_regl(mem_buf, env->regs[n-S390_R0_REGNUM]);
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case S390_A0_REGNUM ... S390_A15_REGNUM:
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return gdb_get_reg32(mem_buf, env->aregs[n-S390_A0_REGNUM]);
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case S390_FPC_REGNUM:
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return gdb_get_reg32(mem_buf, env->fpc);
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case S390_F0_REGNUM ... S390_F15_REGNUM:
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return gdb_get_reg64(mem_buf, env->fregs[n-S390_F0_REGNUM].ll);
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} |
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return 0; |
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} |
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static int cpu_gdb_write_register(CPUS390XState *env, uint8_t *mem_buf, int n) |
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{ |
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target_ulong tmpl; |
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uint32_t tmp32; |
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int r = 8; |
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tmpl = ldtul_p(mem_buf); |
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tmp32 = ldl_p(mem_buf); |
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switch (n) {
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case S390_PSWM_REGNUM:
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env->psw.mask = tmpl; |
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env->cc_op = extract64(tmpl, 44, 2); |
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break;
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case S390_PSWA_REGNUM:
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env->psw.addr = tmpl; |
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break;
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case S390_R0_REGNUM ... S390_R15_REGNUM:
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env->regs[n-S390_R0_REGNUM] = tmpl; |
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break;
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case S390_A0_REGNUM ... S390_A15_REGNUM:
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env->aregs[n-S390_A0_REGNUM] = tmp32; |
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r = 4;
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break;
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case S390_FPC_REGNUM:
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env->fpc = tmp32; |
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r = 4;
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break;
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case S390_F0_REGNUM ... S390_F15_REGNUM:
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env->fregs[n-S390_F0_REGNUM].ll = tmpl; |
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break;
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default:
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return 0; |
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} |
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return r;
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} |