Re: [Qemu-devel] [PATCH] Make tb_alloc static.

[Tristan Gingold]

On Wed, Feb 09, 2011 at 07:52:52PM +0100, Aurelien Jarno wrote:
> 
> What about moving tb_alloc() (with tb_free()) higher in the file? After
> all it make sense to have the function creating or destructing a tb
> before the function manipulating them.

Thanks.  Like this ?

Tristan.


This function is only used within exec.c, so no need to make it public.

Signed-off-by: Tristan Gingold <address@hidden>
---
 exec-all.h |    1 -
 exec.c     |   52 ++++++++++++++++++++++++++--------------------------
 2 files changed, 26 insertions(+), 27 deletions(-)

diff --git a/exec-all.h b/exec-all.h
index 81497c0..c062693 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -182,7 +182,6 @@ static inline unsigned int tb_phys_hash_func(tb_page_addr_t 
pc)
     return (pc >> 2) & (CODE_GEN_PHYS_HASH_SIZE - 1);
 }
 
-TranslationBlock *tb_alloc(target_ulong pc);
 void tb_free(TranslationBlock *tb);
 void tb_flush(CPUState *env);
 void tb_link_page(TranslationBlock *tb,
diff --git a/exec.c b/exec.c
index 477199b..9a7a752 100644
--- a/exec.c
+++ b/exec.c
@@ -649,6 +649,32 @@ void cpu_exec_init(CPUState *env)
 #endif
 }
 
+/* Allocate a new translation block. Flush the translation buffer if
+   too many translation blocks or too much generated code. */
+static TranslationBlock *tb_alloc(target_ulong pc)
+{
+    TranslationBlock *tb;
+
+    if (nb_tbs >= code_gen_max_blocks ||
+        (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size)
+        return NULL;
+    tb = &tbs[nb_tbs++];
+    tb->pc = pc;
+    tb->cflags = 0;
+    return tb;
+}
+
+void tb_free(TranslationBlock *tb)
+{
+    /* In practice this is mostly used for single use temporary TB
+       Ignore the hard cases and just back up if this TB happens to
+       be the last one generated.  */
+    if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) {
+        code_gen_ptr = tb->tc_ptr;
+        nb_tbs--;
+    }
+}
+
 static inline void invalidate_page_bitmap(PageDesc *p)
 {
     if (p->code_bitmap) {
@@ -1227,32 +1253,6 @@ static inline void tb_alloc_page(TranslationBlock *tb,
 #endif /* TARGET_HAS_SMC */
 }
 
-/* Allocate a new translation block. Flush the translation buffer if
-   too many translation blocks or too much generated code. */
-TranslationBlock *tb_alloc(target_ulong pc)
-{
-    TranslationBlock *tb;
-
-    if (nb_tbs >= code_gen_max_blocks ||
-        (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size)
-        return NULL;
-    tb = &tbs[nb_tbs++];
-    tb->pc = pc;
-    tb->cflags = 0;
-    return tb;
-}
-
-void tb_free(TranslationBlock *tb)
-{
-    /* In practice this is mostly used for single use temporary TB
-       Ignore the hard cases and just back up if this TB happens to
-       be the last one generated.  */
-    if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) {
-        code_gen_ptr = tb->tc_ptr;
-        nb_tbs--;
-    }
-}
-
 /* add a new TB and link it to the physical page tables. phys_page2 is
    (-1) to indicate that only one page contains the TB. */
 void tb_link_page(TranslationBlock *tb,
-- 
1.7.3.GIT