cpu_abort()

[qemu] / exec.c

diff --git a/exec.c b/exec.c
index 8f332c9..79c2bd0 100644 (file)
--- a/exec.c
+++ b/exec.c
@@ -70,7 +70,7 @@ unsigned long host_page_mask;
 
 static PageDesc *l1_map[L1_SIZE];
 
-void page_init(void)
+static void page_init(void)
 {
     /* NOTE: we can always suppose that host_page_size >=
        TARGET_PAGE_SIZE */
@@ -190,10 +190,11 @@ void page_set_flags(unsigned long start, unsigned long end, int flags)
     spin_unlock(&tb_lock);
 }
 
-void cpu_x86_tblocks_init(void)
+void cpu_exec_init(void)
 {
     if (!code_gen_ptr) {
         code_gen_ptr = code_gen_buffer;
+        page_init();
     }
 }
 
@@ -531,3 +532,50 @@ void page_unprotect_range(uint8_t *data, unsigned long data_size)
         page_unprotect(addr);
     }
 }
+
+/* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr <
+   tb[1].tc_ptr. Return NULL if not found */
+TranslationBlock *tb_find_pc(unsigned long tc_ptr)
+{
+    int m_min, m_max, m;
+    unsigned long v;
+    TranslationBlock *tb;
+
+    if (nb_tbs <= 0)
+        return NULL;
+    if (tc_ptr < (unsigned long)code_gen_buffer ||
+        tc_ptr >= (unsigned long)code_gen_ptr)
+        return NULL;
+    /* binary search (cf Knuth) */
+    m_min = 0;
+    m_max = nb_tbs - 1;
+    while (m_min <= m_max) {
+        m = (m_min + m_max) >> 1;
+        tb = &tbs[m];
+        v = (unsigned long)tb->tc_ptr;
+        if (v == tc_ptr)
+            return tb;
+        else if (tc_ptr < v) {
+            m_max = m - 1;
+        } else {
+            m_min = m + 1;
+        }
+    } 
+    return &tbs[m_max];
+}
+
+void cpu_abort(CPUState *env, const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    fprintf(stderr, "qemu: fatal: ");
+    vfprintf(stderr, fmt, ap);
+    fprintf(stderr, "\n");
+#ifdef TARGET_I386
+    cpu_x86_dump_state(env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
+#endif
+    va_end(ap);
+    abort();
+}
+