CRIS support in toplevel, by Edgar E. Iglesias.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3363 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/cpu-exec.c b/cpu-exec.c
index 55758fa..d09b564 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -210,6 +210,10 @@
flags = env->ps;
cs_base = 0;
pc = env->pc;
+#elif defined(TARGET_CRIS)
+ flags = 0;
+ cs_base = 0;
+ pc = env->pc;
#else
#error unsupported CPU
#endif
@@ -284,6 +288,7 @@
#elif defined(TARGET_PPC)
#elif defined(TARGET_MIPS)
#elif defined(TARGET_SH4)
+#elif defined(TARGET_CRIS)
/* XXXXX */
#else
#error unsupported target CPU
@@ -335,6 +340,8 @@
do_interrupt(env);
#elif defined(TARGET_ALPHA)
do_interrupt(env);
+#elif defined(TARGET_CRIS)
+ do_interrupt(env);
#elif defined(TARGET_M68K)
do_interrupt(0);
#endif
@@ -385,7 +392,7 @@
cpu_loop_exit();
}
#if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_MIPS) || \
- defined(TARGET_PPC) || defined(TARGET_ALPHA)
+ defined(TARGET_PPC) || defined(TARGET_ALPHA) || defined(TARGET_CRIS)
if (interrupt_request & CPU_INTERRUPT_HALT) {
env->interrupt_request &= ~CPU_INTERRUPT_HALT;
env->halted = 1;
@@ -517,6 +524,11 @@
if (interrupt_request & CPU_INTERRUPT_HARD) {
do_interrupt(env);
}
+#elif defined(TARGET_CRIS)
+ if (interrupt_request & CPU_INTERRUPT_HARD) {
+ do_interrupt(env);
+ env->interrupt_request &= ~CPU_INTERRUPT_HARD;
+ }
#elif defined(TARGET_M68K)
if (interrupt_request & CPU_INTERRUPT_HARD
&& ((env->sr & SR_I) >> SR_I_SHIFT)
@@ -576,6 +588,8 @@
cpu_dump_state(env, logfile, fprintf, 0);
#elif defined(TARGET_ALPHA)
cpu_dump_state(env, logfile, fprintf, 0);
+#elif defined(TARGET_CRIS)
+ cpu_dump_state(env, logfile, fprintf, 0);
#else
#error unsupported target CPU
#endif
@@ -769,6 +783,7 @@
#elif defined(TARGET_MIPS)
#elif defined(TARGET_SH4)
#elif defined(TARGET_ALPHA)
+#elif defined(TARGET_CRIS)
/* XXXXX */
#else
#error unsupported target CPU
@@ -1200,6 +1215,51 @@
/* never comes here */
return 1;
}
+#elif defined (TARGET_CRIS)
+static inline int handle_cpu_signal(unsigned long pc, unsigned long address,
+ int is_write, sigset_t *old_set,
+ void *puc)
+{
+ TranslationBlock *tb;
+ int ret;
+
+ if (cpu_single_env)
+ env = cpu_single_env; /* XXX: find a correct solution for multithread */
+#if defined(DEBUG_SIGNAL)
+ printf("qemu: SIGSEGV pc=0x%08lx address=%08lx w=%d oldset=0x%08lx\n",
+ pc, address, is_write, *(unsigned long *)old_set);
+#endif
+ /* XXX: locking issue */
+ if (is_write && page_unprotect(h2g(address), pc, puc)) {
+ return 1;
+ }
+
+ /* see if it is an MMU fault */
+ ret = cpu_cris_handle_mmu_fault(env, address, is_write, 1, 0);
+ if (ret < 0)
+ return 0; /* not an MMU fault */
+ if (ret == 0)
+ return 1; /* the MMU fault was handled without causing real CPU fault */
+
+ /* now we have a real cpu fault */
+ tb = tb_find_pc(pc);
+ if (tb) {
+ /* the PC is inside the translated code. It means that we have
+ a virtual CPU fault */
+ cpu_restore_state(tb, env, pc, puc);
+ }
+#if 0
+ printf("PF exception: NIP=0x%08x error=0x%x %p\n",
+ env->nip, env->error_code, tb);
+#endif
+ /* we restore the process signal mask as the sigreturn should
+ do it (XXX: use sigsetjmp) */
+ sigprocmask(SIG_SETMASK, old_set, NULL);
+ cpu_loop_exit();
+ /* never comes here */
+ return 1;
+}
+
#else
#error unsupported target CPU
#endif
