3b249d2661
qemu.h is included in various non-linux-user files (which mostly want the TaskState struct and the functions for doing usermode access to guest addresses like lock_user(), unlock_user(), get_user*(), etc). Split out the parts that are only used in linux-user itself into a new user-internals.h. This leaves qemu.h with basically three things: * the definition of the TaskState struct * the user-access functions and macros * do_brk() all of which are needed by code outside linux-user that includes qemu.h. The addition of all the extra #include lines was done with sed -i '/include.*qemu\.h/a #include "user-internals.h"' $(git grep -l 'include.*qemu\.h' linux-user) (and then undoing the change to fpa11.h). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210908154405.15417-8-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/*
|
|
* qemu user cpu loop
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
*
|
|
* This program 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu-common.h"
|
|
#include "qemu.h"
|
|
#include "user-internals.h"
|
|
#include "cpu_loop-common.h"
|
|
#include "signal-common.h"
|
|
|
|
void cpu_loop(CPUOpenRISCState *env)
|
|
{
|
|
CPUState *cs = env_cpu(env);
|
|
int trapnr;
|
|
abi_long ret;
|
|
target_siginfo_t info;
|
|
|
|
for (;;) {
|
|
cpu_exec_start(cs);
|
|
trapnr = cpu_exec(cs);
|
|
cpu_exec_end(cs);
|
|
process_queued_cpu_work(cs);
|
|
|
|
switch (trapnr) {
|
|
case EXCP_SYSCALL:
|
|
env->pc += 4; /* 0xc00; */
|
|
ret = do_syscall(env,
|
|
cpu_get_gpr(env, 11), /* return value */
|
|
cpu_get_gpr(env, 3), /* r3 - r7 are params */
|
|
cpu_get_gpr(env, 4),
|
|
cpu_get_gpr(env, 5),
|
|
cpu_get_gpr(env, 6),
|
|
cpu_get_gpr(env, 7),
|
|
cpu_get_gpr(env, 8), 0, 0);
|
|
if (ret == -TARGET_ERESTARTSYS) {
|
|
env->pc -= 4;
|
|
} else if (ret != -TARGET_QEMU_ESIGRETURN) {
|
|
cpu_set_gpr(env, 11, ret);
|
|
}
|
|
break;
|
|
case EXCP_DPF:
|
|
case EXCP_IPF:
|
|
case EXCP_RANGE:
|
|
info.si_signo = TARGET_SIGSEGV;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_SEGV_MAPERR;
|
|
info._sifields._sigfault._addr = env->pc;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_ALIGN:
|
|
info.si_signo = TARGET_SIGBUS;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_BUS_ADRALN;
|
|
info._sifields._sigfault._addr = env->pc;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_ILLEGAL:
|
|
info.si_signo = TARGET_SIGILL;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_ILL_ILLOPC;
|
|
info._sifields._sigfault._addr = env->pc;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_FPE:
|
|
info.si_signo = TARGET_SIGFPE;
|
|
info.si_errno = 0;
|
|
info.si_code = 0;
|
|
info._sifields._sigfault._addr = env->pc;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_INTERRUPT:
|
|
/* We processed the pending cpu work above. */
|
|
break;
|
|
case EXCP_DEBUG:
|
|
info.si_signo = TARGET_SIGTRAP;
|
|
info.si_errno = 0;
|
|
info.si_code = TARGET_TRAP_BRKPT;
|
|
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
|
|
break;
|
|
case EXCP_ATOMIC:
|
|
cpu_exec_step_atomic(cs);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
process_pending_signals(env);
|
|
}
|
|
}
|
|
|
|
void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
cpu_set_gpr(env, i, regs->gpr[i]);
|
|
}
|
|
env->pc = regs->pc;
|
|
cpu_set_sr(env, regs->sr);
|
|
}
|