Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20171010' into staging

Queued TCG patches

# gpg: Signature made Tue 10 Oct 2017 20:23:12 BST
# gpg:                using RSA key 0x64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20171010:
  tcg/mips: delete commented out extern keyword.
  tcg: define TCG_HIGHWATER
  util: move qemu_real_host_page_size/mask to osdep.h
  tcg: take .helpers out of TCGContext
  tci: move tci_regs to tcg_qemu_tb_exec's stack
  exec-all: extract tb->tc_* into a separate struct tc_tb
  translate-all: define and use DEBUG_TB_CHECK_GATE
  translate-all: define and use DEBUG_TB_INVALIDATE_GATE
  exec-all: introduce TB_PAGE_ADDR_FMT
  translate-all: define and use DEBUG_TB_FLUSH_GATE
  exec-all: bring tb->invalid into tb->cflags
  tcg: consolidate TB lookups in tb_lookup__cpu_state
  tcg: remove addr argument from lookup_tb_ptr
  tcg/mips: constify tcg_target_callee_save_regs
  tcg/i386: constify tcg_target_callee_save_regs
  cpu-exec: rename have_tb_lock to acquired_tb_lock in tb_find
  translate-all: make have_tb_lock static
  exec-all: fix typos in TranslationBlock's documentation
  tcg: fix corruption of code_time profiling counter upon tb_flush
  cputlb: bring back tlb_flush_count under !TLB_DEBUG

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 10 insertions, 8 deletions

diff --git a/tcg/tcg.c b/tcg/tcg.c
index dff9999bc6..4492e1eb3f 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -116,6 +116,8 @@ static int tcg_target_const_match(tcg_target_long val, TCGType type,
 static bool tcg_out_ldst_finalize(TCGContext *s);
 #endif
 
+#define TCG_HIGHWATER 1024
+
 static TCGRegSet tcg_target_available_regs[2];
 static TCGRegSet tcg_target_call_clobber_regs;
 
@@ -318,6 +320,7 @@ typedef struct TCGHelperInfo {
 static const TCGHelperInfo all_helpers[] = {
 #include "exec/helper-tcg.h"
 };
+static GHashTable *helper_table;
 
 static int indirect_reg_alloc_order[ARRAY_SIZE(tcg_target_reg_alloc_order)];
 static void process_op_defs(TCGContext *s);
@@ -328,7 +331,6 @@ void tcg_context_init(TCGContext *s)
     TCGOpDef *def;
     TCGArgConstraint *args_ct;
     int *sorted_args;
-    GHashTable *helper_table;
 
     memset(s, 0, sizeof(*s));
     s->nb_globals = 0;
@@ -356,7 +358,7 @@ void tcg_context_init(TCGContext *s)
 
     /* Register helpers.  */
     /* Use g_direct_hash/equal for direct pointer comparisons on func.  */
-    s->helpers = helper_table = g_hash_table_new(NULL, NULL);
+    helper_table = g_hash_table_new(NULL, NULL);
 
     for (i = 0; i < ARRAY_SIZE(all_helpers); ++i) {
         g_hash_table_insert(helper_table, (gpointer)all_helpers[i].func,
@@ -430,7 +432,7 @@ void tcg_prologue_init(TCGContext *s)
     /* Compute a high-water mark, at which we voluntarily flush the buffer
        and start over.  The size here is arbitrary, significantly larger
        than we expect the code generation for any one opcode to require.  */
-    s->code_gen_highwater = s->code_gen_buffer + (total_size - 1024);
+    s->code_gen_highwater = s->code_gen_buffer + (total_size - TCG_HIGHWATER);
 
     tcg_register_jit(s->code_gen_buffer, total_size);
 
@@ -982,7 +984,7 @@ void tcg_gen_callN(TCGContext *s, void *func, TCGArg ret,
     unsigned sizemask, flags;
     TCGHelperInfo *info;
 
-    info = g_hash_table_lookup(s->helpers, (gpointer)func);
+    info = g_hash_table_lookup(helper_table, (gpointer)func);
     flags = info->flags;
     sizemask = info->sizemask;
 
@@ -1211,8 +1213,8 @@ static char *tcg_get_arg_str_idx(TCGContext *s, char *buf,
 static inline const char *tcg_find_helper(TCGContext *s, uintptr_t val)
 {
     const char *ret = NULL;
-    if (s->helpers) {
-        TCGHelperInfo *info = g_hash_table_lookup(s->helpers, (gpointer)val);
+    if (helper_table) {
+        TCGHelperInfo *info = g_hash_table_lookup(helper_table, (gpointer)val);
         if (info) {
             ret = info->name;
         }
@@ -2836,8 +2838,8 @@ int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
 
     tcg_reg_alloc_start(s);
 
-    s->code_buf = tb->tc_ptr;
-    s->code_ptr = tb->tc_ptr;
+    s->code_buf = tb->tc.ptr;
+    s->code_ptr = tb->tc.ptr;
 
 #ifdef TCG_TARGET_NEED_LDST_LABELS
     s->ldst_labels = NULL;