[PATCH 1/3] jit: introduce alloc_exec_buffer()

[Tomek Grabiec]

Signed-off-by: Tomek Grabiec <tgrab...@gmail.com>
---
 include/lib/buffer.h |    1 +
 jit/emit.c           |    9 ++-------
 lib/buffer.c         |   12 +++++++++++-
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/include/lib/buffer.h b/include/lib/buffer.h
index 6a59e78..60a3d23 100644
--- a/include/lib/buffer.h
+++ b/include/lib/buffer.h
@@ -23,6 +23,7 @@ struct buffer {
        struct buffer_operations *ops;
 };
 
+struct buffer *alloc_exec_buffer(void);
 struct buffer *__alloc_buffer(struct buffer_operations *);
 struct buffer *alloc_buffer(void);
 void free_buffer(struct buffer *);
diff --git a/jit/emit.c b/jit/emit.c
index 1a45a1f..c62f1b5 100644
--- a/jit/emit.c
+++ b/jit/emit.c
@@ -152,11 +152,6 @@ static void emit_resolution_blocks(struct basic_block *bb, 
struct buffer *buf)
        }
 }
 
-static struct buffer_operations exec_buf_ops = {
-       .expand = NULL,
-       .free   = NULL,
-};
-
 int emit_machine_code(struct compilation_unit *cu)
 {
        unsigned long frame_size;
@@ -164,7 +159,7 @@ int emit_machine_code(struct compilation_unit *cu)
        struct buffer *buf;
        int err = 0;
 
-       buf = __alloc_buffer(&exec_buf_ops);
+       buf = alloc_exec_buffer();
        if (!buf)
                return warn("out of memory"), -ENOMEM;
 
@@ -220,7 +215,7 @@ struct jit_trampoline *alloc_jit_trampoline(void)
 
        memset(trampoline, 0, sizeof(*trampoline));
 
-       trampoline->objcode = __alloc_buffer(&exec_buf_ops);
+       trampoline->objcode = alloc_exec_buffer();
        if (!trampoline->objcode)
                goto failed;
 
diff --git a/lib/buffer.c b/lib/buffer.c
index 2e94dc5..1da5257 100644
--- a/lib/buffer.c
+++ b/lib/buffer.c
@@ -10,10 +10,20 @@
 #include <stdlib.h>
 #include <string.h>
 
+static struct buffer_operations exec_buf_ops = {
+       .expand = NULL,
+       .free   = NULL,
+};
+
+struct buffer *alloc_exec_buffer(void)
+{
+       return __alloc_buffer(&exec_buf_ops);
+}
+
 struct buffer *__alloc_buffer(struct buffer_operations *ops)
 {
        struct buffer *buf;
-       
+
        buf = malloc(sizeof *buf);
        if (!buf)
                return NULL;
-- 
1.6.0.6


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