From fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Tue, 11 Oct 2016 08:56:52 +0200 Subject: Move target-* CPU file into a target/ folder We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier [m68k part] Acked-by: Bastian Koppelmann [tricore part] Acked-by: Michael Walle [lm32 part] Acked-by: Cornelia Huck [s390x part] Reviewed-by: Christian Borntraeger [s390x part] Acked-by: Eduardo Habkost [i386 part] Acked-by: Artyom Tarasenko [sparc part] Acked-by: Richard Henderson [alpha part] Acked-by: Max Filippov [xtensa part] Reviewed-by: David Gibson [ppc part] Acked-by: Edgar E. Iglesias [crisµblaze part] Acked-by: Guan Xuetao [unicore32 part] Signed-off-by: Thomas Huth --- target/cris/gdbstub.c | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 target/cris/gdbstub.c (limited to 'target/cris/gdbstub.c') diff --git a/target/cris/gdbstub.c b/target/cris/gdbstub.c new file mode 100644 index 0000000000..3a72ee2a98 --- /dev/null +++ b/target/cris/gdbstub.c @@ -0,0 +1,131 @@ +/* + * 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 . + */ +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "cpu.h" +#include "exec/gdbstub.h" + +int crisv10_cpu_gdb_read_register(CPUState *cs, uint8_t *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, uint8_t *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; +} -- cgit v1.2.3