diff options
author | Andreas Färber <afaerber@suse.de> | 2013-07-07 12:50:22 +0200 |
---|---|---|
committer | Andreas Färber <afaerber@suse.de> | 2013-07-27 00:04:16 +0200 |
commit | 213c19d69fb9c7537afb8539bbdf12dba90ba0ef (patch) | |
tree | e67aaf0d36f4944f7a48a080447394f9e5640df5 /target-cris | |
parent | eabfc2398f3e4e553843c15b1e3a3af2a52a7fcb (diff) | |
download | hqemu-213c19d69fb9c7537afb8539bbdf12dba90ba0ef.zip hqemu-213c19d69fb9c7537afb8539bbdf12dba90ba0ef.tar.gz |
target-cris: Move cpu_gdb_{read,write}_register()
Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'target-cris')
-rw-r--r-- | target-cris/gdbstub.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/target-cris/gdbstub.c b/target-cris/gdbstub.c new file mode 100644 index 0000000..b48224a --- /dev/null +++ b/target-cris/gdbstub.c @@ -0,0 +1,125 @@ +/* + * 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 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/>. + */ + +static int +read_register_crisv10(CPUCRISState *env, uint8_t *mem_buf, int n) +{ + if (n < 15) { + GET_REG32(env->regs[n]); + } + + if (n == 15) { + GET_REG32(env->pc); + } + + if (n < 32) { + switch (n) { + case 16: + GET_REG8(env->pregs[n - 16]); + case 17: + GET_REG8(env->pregs[n - 16]); + case 20: + case 21: + GET_REG16(env->pregs[n - 16]); + default: + if (n >= 23) { + GET_REG32(env->pregs[n - 16]); + } + break; + } + } + return 0; +} + +static int cpu_gdb_read_register(CPUCRISState *env, uint8_t *mem_buf, int n) +{ + uint8_t srs; + + if (env->pregs[PR_VR] < 32) { + return read_register_crisv10(env, mem_buf, n); + } + + srs = env->pregs[PR_SRS]; + if (n < 16) { + GET_REG32(env->regs[n]); + } + + if (n >= 21 && n < 32) { + GET_REG32(env->pregs[n - 16]); + } + if (n >= 33 && n < 49) { + GET_REG32(env->sregs[srs][n - 33]); + } + switch (n) { + case 16: + GET_REG8(env->pregs[0]); + case 17: + GET_REG8(env->pregs[1]); + case 18: + GET_REG32(env->pregs[2]); + case 19: + GET_REG8(srs); + case 20: + GET_REG16(env->pregs[4]); + case 32: + GET_REG32(env->pc); + } + + return 0; +} + +static int cpu_gdb_write_register(CPUCRISState *env, uint8_t *mem_buf, int n) +{ + 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; +} |