#include <inttypes.h>
#include <sys/mman.h>
+#include "config.h"
+#ifdef TARGET_I386
#include "cpu-i386.h"
+#endif
+#ifdef TARGET_ARM
+#include "cpu-arm.h"
+#endif
#include "exec.h"
//#define DEBUG_TB_INVALIDATE
-#define DEBUG_FLUSH
+//#define DEBUG_FLUSH
/* make various TB consistency checks */
//#define DEBUG_TB_CHECK
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 */
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();
}
}
}
return &tbs[m_max];
}
+
+static void tb_reset_jump_recursive(TranslationBlock *tb);
+
+static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n)
+{
+ TranslationBlock *tb1, *tb_next, **ptb;
+ unsigned int n1;
+
+ tb1 = tb->jmp_next[n];
+ if (tb1 != NULL) {
+ /* find head of list */
+ for(;;) {
+ n1 = (long)tb1 & 3;
+ tb1 = (TranslationBlock *)((long)tb1 & ~3);
+ if (n1 == 2)
+ break;
+ tb1 = tb1->jmp_next[n1];
+ }
+ /* we are now sure now that tb jumps to tb1 */
+ tb_next = tb1;
+
+ /* remove tb from the jmp_first list */
+ ptb = &tb_next->jmp_first;
+ for(;;) {
+ tb1 = *ptb;
+ n1 = (long)tb1 & 3;
+ tb1 = (TranslationBlock *)((long)tb1 & ~3);
+ if (n1 == n && tb1 == tb)
+ break;
+ ptb = &tb1->jmp_next[n1];
+ }
+ *ptb = tb->jmp_next[n];
+ tb->jmp_next[n] = NULL;
+
+ /* suppress the jump to next tb in generated code */
+ tb_reset_jump(tb, n);
+
+ /* suppress jumps in the tb on which we could have jump */
+ tb_reset_jump_recursive(tb_next);
+ }
+}
+
+static void tb_reset_jump_recursive(TranslationBlock *tb)
+{
+ tb_reset_jump_recursive2(tb, 0);
+ tb_reset_jump_recursive2(tb, 1);
+}
+
+void cpu_interrupt(CPUState *env)
+{
+ TranslationBlock *tb;
+
+ env->interrupt_request = 1;
+ /* if the cpu is currently executing code, we must unlink it and
+ all the potentially executing TB */
+ tb = env->current_tb;
+ if (tb) {
+ tb_reset_jump_recursive(tb);
+ }
+}
+
+
+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();
+}
+
+#ifdef TARGET_I386
+/* unmap all maped pages and flush all associated code */
+void page_unmap(void)
+{
+ PageDesc *p, *pmap;
+ unsigned long addr;
+ int i, j, ret, j1;
+
+ for(i = 0; i < L1_SIZE; i++) {
+ pmap = l1_map[i];
+ if (pmap) {
+ p = pmap;
+ for(j = 0;j < L2_SIZE;) {
+ if (p->flags & PAGE_VALID) {
+ addr = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS);
+ /* we try to find a range to make less syscalls */
+ j1 = j;
+ p++;
+ j++;
+ while (j < L2_SIZE && (p->flags & PAGE_VALID)) {
+ p++;
+ j++;
+ }
+ ret = munmap((void *)addr, (j - j1) << TARGET_PAGE_BITS);
+ if (ret != 0) {
+ fprintf(stderr, "Could not unmap page 0x%08lx\n", addr);
+ exit(1);
+ }
+ } else {
+ p++;
+ j++;
+ }
+ }
+ free(pmap);
+ l1_map[i] = NULL;
+ }
+ }
+ tb_flush();
+}
+#endif