diff options
Diffstat (limited to 'translate-all.c')
| -rw-r--r-- | translate-all.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/translate-all.c b/translate-all.c index f35522e377..5aded3d3bd 100644 --- a/translate-all.c +++ b/translate-all.c @@ -31,6 +31,7 @@ #include "tcg.h" #if defined(CONFIG_USER_ONLY) #include "qemu.h" +#include "exec/exec-all.h" #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) #include <sys/param.h> #if __FreeBSD_version >= 700104 @@ -58,6 +59,7 @@ /* #define DEBUG_TB_INVALIDATE */ /* #define DEBUG_TB_FLUSH */ +/* #define DEBUG_LOCKING */ /* make various TB consistency checks */ /* #define DEBUG_TB_CHECK */ @@ -66,6 +68,28 @@ #undef DEBUG_TB_CHECK #endif +/* Access to the various translations structures need to be serialised via locks + * for consistency. This is automatic for SoftMMU based system + * emulation due to its single threaded nature. In user-mode emulation + * access to the memory related structures are protected with the + * mmap_lock. + */ +#ifdef DEBUG_LOCKING +#define DEBUG_MEM_LOCKS 1 +#else +#define DEBUG_MEM_LOCKS 0 +#endif + +#ifdef CONFIG_SOFTMMU +#define assert_memory_lock() do { /* nothing */ } while (0) +#else +#define assert_memory_lock() do { \ + if (DEBUG_MEM_LOCKS) { \ + g_assert(have_mmap_lock()); \ + } \ + } while (0) +#endif + #define SMC_BITMAP_USE_THRESHOLD 10 typedef struct PageDesc { @@ -173,6 +197,23 @@ void tb_lock_reset(void) #endif } +#ifdef DEBUG_LOCKING +#define DEBUG_TB_LOCKS 1 +#else +#define DEBUG_TB_LOCKS 0 +#endif + +#ifdef CONFIG_SOFTMMU +#define assert_tb_lock() do { /* nothing */ } while (0) +#else +#define assert_tb_lock() do { \ + if (DEBUG_TB_LOCKS) { \ + g_assert(have_tb_lock); \ + } \ + } while (0) +#endif + + static TranslationBlock *tb_find_pc(uintptr_t tc_ptr); void cpu_gen_init(void) |