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target-or32: Add linux user support

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Add QEMU OpenRISC linux user support.

Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Jia Liu 2012-07-20 15:50:52 +08:00 • committed by Blue Swirl
parent a8720299f1
commit d962783e98
8 changed files with 422 additions and 4 deletions
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100
linux-user/main.c
View file

@ -2306,6 +2306,93 @@ done_syscall:
}
#endif
#ifdef TARGET_OPENRISC
void cpu_loop(CPUOpenRISCState *env)
{
int trapnr, gdbsig;
for (;;) {
trapnr = cpu_exec(env);
gdbsig = 0;
switch (trapnr) {
case EXCP_RESET:
qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
exit(1);
break;
case EXCP_BUSERR:
qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
gdbsig = SIGBUS;
break;
case EXCP_DPF:
case EXCP_IPF:
cpu_dump_state(env, stderr, fprintf, 0);
gdbsig = TARGET_SIGSEGV;
break;
case EXCP_TICK:
qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
break;
case EXCP_ALIGN:
qemu_log("\nAlignment pc is %#x\n", env->pc);
gdbsig = SIGBUS;
break;
case EXCP_ILLEGAL:
qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
gdbsig = SIGILL;
break;
case EXCP_INT:
qemu_log("\nExternal interruptpc is %#x\n", env->pc);
break;
case EXCP_DTLBMISS:
case EXCP_ITLBMISS:
qemu_log("\nTLB miss\n");
break;
case EXCP_RANGE:
qemu_log("\nRange\n");
gdbsig = SIGSEGV;
break;
case EXCP_SYSCALL:
env->pc += 4; /* 0xc00; */
env->gpr[11] = do_syscall(env,
env->gpr[11], /* return value */
env->gpr[3], /* r3 - r7 are params */
env->gpr[4],
env->gpr[5],
env->gpr[6],
env->gpr[7],
env->gpr[8], 0, 0);
break;
case EXCP_FPE:
qemu_log("\nFloating point error\n");
break;
case EXCP_TRAP:
qemu_log("\nTrap\n");
gdbsig = SIGTRAP;
break;
case EXCP_NR:
qemu_log("\nNR\n");
break;
default:
qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
gdbsig = TARGET_SIGILL;
break;
}
if (gdbsig) {
gdb_handlesig(env, gdbsig);
if (gdbsig != TARGET_SIGTRAP) {
exit(1);
}
}
process_pending_signals(env);
}
}
#endif /* TARGET_OPENRISC */
#ifdef TARGET_SH4
void cpu_loop(CPUSH4State *env)
{
@ -3386,6 +3473,8 @@ int main(int argc, char **argv, char **envp)
#else
cpu_model = "24Kf";
#endif
#elif defined TARGET_OPENRISC
cpu_model = "or1200";
#elif defined(TARGET_PPC)
#ifdef TARGET_PPC64
cpu_model = "970fx";
@ -3788,6 +3877,17 @@ int main(int argc, char **argv, char **envp)
env->hflags |= MIPS_HFLAG_M16;
}
}
#elif defined(TARGET_OPENRISC)
{
int i;
for (i = 0; i < 32; i++) {
env->gpr[i] = regs->gpr[i];
}
env->sr = regs->sr;
env->pc = regs->pc;
}
#elif defined(TARGET_SH4)
{
int i;