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unicore32: necessary modifications for other files to support unicore32

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Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Guan Xuetao 2011-04-12 16:27:03 +08:00 • committed by Blue Swirl
parent 8b5d487d4d
commit d2fbca9422
10 changed files with 202 additions and 14 deletions
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89
linux-user/main.c
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@ -816,6 +816,83 @@ void cpu_loop(CPUARMState *env)
#endif
#ifdef TARGET_UNICORE32
void cpu_loop(CPUState *env)
{
int trapnr;
unsigned int n, insn;
target_siginfo_t info;
for (;;) {
cpu_exec_start(env);
trapnr = uc32_cpu_exec(env);
cpu_exec_end(env);
switch (trapnr) {
case UC32_EXCP_PRIV:
{
/* system call */
get_user_u32(insn, env->regs[31] - 4);
n = insn & 0xffffff;
if (n >= UC32_SYSCALL_BASE) {
/* linux syscall */
n -= UC32_SYSCALL_BASE;
if (n == UC32_SYSCALL_NR_set_tls) {
cpu_set_tls(env, env->regs[0]);
env->regs[0] = 0;
} else {
env->regs[0] = do_syscall(env,
n,
env->regs[0],
env->regs[1],
env->regs[2],
env->regs[3],
env->regs[4],
env->regs[5]);
}
} else {
goto error;
}
}
break;
case UC32_EXCP_TRAP:
info.si_signo = SIGSEGV;
info.si_errno = 0;
/* XXX: check env->error_code */
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
queue_signal(env, info.si_signo, &info);
break;
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(env, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, &info);
}
}
break;
default:
goto error;
}
process_pending_signals(env);
}
error:
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
cpu_dump_state(env, stderr, fprintf, 0);
abort();
}
#endif
#ifdef TARGET_SPARC
#define SPARC64_STACK_BIAS 2047
@ -2925,6 +3002,8 @@ int main(int argc, char **argv, char **envp)
#endif
#elif defined(TARGET_ARM)
cpu_model = "any";
#elif defined(TARGET_UNICORE32)
cpu_model = "any";
#elif defined(TARGET_M68K)
cpu_model = "any";
#elif defined(TARGET_SPARC)
@ -3227,6 +3306,14 @@ int main(int argc, char **argv, char **envp)
env->regs[i] = regs->uregs[i];
}
}
#elif defined(TARGET_UNICORE32)
{
int i;
cpu_asr_write(env, regs->uregs[32], 0xffffffff);
for (i = 0; i < 32; i++) {
env->regs[i] = regs->uregs[i];
}
}
#elif defined(TARGET_SPARC)
{
int i;
@ -3367,7 +3454,7 @@ int main(int argc, char **argv, char **envp)
#error unsupported target CPU
#endif
#if defined(TARGET_ARM) || defined(TARGET_M68K)
#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
ts->stack_base = info->start_stack;
ts->heap_base = info->brk;
/* This will be filled in on the first SYS_HEAPINFO call. */