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misc: Make jit_note and related functions take a const argument

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Make jit_memcpy, jit_memmove, jit_data take const pointers to
allow jit_note to be used with a const string (e.g. a string
literal, __FILE__ or __func__). This is needed for GNU Smalltalk
to silence compiler warnings.

Sadly "const jit_pointer_t" is not the same as "typedef const void *"
so I introduced a new typedef for a const jit pointer. The other
option would be to replace jit_pointer_t with void*.
This commit is contained in:
Holger Hans Peter Freyther 2014-10-26 22:21:42 +01:00 • committed by pcpa
parent 44519452d9
commit 2229200c44
5 changed files with 12 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/lightning.h
View file

@ -120,6 +120,7 @@ typedef jit_uint64_t jit_uword_t;
typedef float jit_float32_t;
typedef double jit_float64_t;
typedef void* jit_pointer_t;
typedef const void* jit_const_pointer_t;
typedef jit_int32_t jit_bool_t;
typedef jit_int32_t jit_gpr_t;
typedef jit_int32_t jit_fpr_t;
@ -856,10 +857,10 @@ extern void _jit_destroy_state(jit_state_t*);
#define jit_address(node) _jit_address(_jit, node)
extern jit_pointer_t _jit_address(jit_state_t*, jit_node_t*);
extern jit_node_t *_jit_data(jit_state_t*, jit_pointer_t,
extern jit_node_t *_jit_data(jit_state_t*, jit_const_pointer_t,
jit_word_t, jit_int32_t);
extern jit_node_t *_jit_name(jit_state_t*, char*);
extern jit_node_t *_jit_note(jit_state_t*, char*, int);
extern jit_node_t *_jit_note(jit_state_t*, const char*, int);
extern jit_node_t *_jit_label(jit_state_t*);
extern jit_node_t *_jit_forward(jit_state_t*);
extern jit_node_t *_jit_indirect(jit_state_t*);

4
include/lightning/jit_private.h
View file

@ -611,8 +611,8 @@ extern void _jit_set_note(jit_state_t*, jit_note_t*, char*, int, jit_int32_t);
#define jit_annotate() _jit_annotate(_jit)
extern void _jit_annotate(jit_state_t*);
extern jit_pointer_t jit_memcpy(jit_pointer_t,jit_pointer_t,jit_word_t);
extern jit_pointer_t jit_memmove(jit_pointer_t,jit_pointer_t,jit_word_t);
extern jit_pointer_t jit_memcpy(jit_pointer_t,jit_const_pointer_t,jit_word_t);
extern jit_pointer_t jit_memmove(jit_pointer_t,jit_const_pointer_t,jit_word_t);
extern void jit_alloc(jit_pointer_t*, jit_word_t);
extern void jit_realloc(jit_pointer_t*, jit_word_t, jit_word_t);
void jit_free(jit_pointer_t*);

4
lib/jit_memory.c
View file

@ -39,7 +39,7 @@ static jit_free_func_ptr jit_free_ptr = jit_default_free_func;
* Implementation
*/
jit_pointer_t
jit_memcpy(jit_pointer_t dst, jit_pointer_t src, jit_word_t size)
jit_memcpy(jit_pointer_t dst, jit_const_pointer_t src, jit_word_t size)
{
if (size)
return (memcpy(dst, src, size));
@ -47,7 +47,7 @@ jit_memcpy(jit_pointer_t dst, jit_pointer_t src, jit_word_t size)
}
jit_pointer_t
jit_memmove(jit_pointer_t dst, jit_pointer_t src , jit_word_t size)
jit_memmove(jit_pointer_t dst, jit_const_pointer_t src , jit_word_t size)
{
if (size)
return (memmove(dst, src, size));

2
lib/jit_note.c
View file

@ -70,7 +70,7 @@ _jit_name(jit_state_t *_jit, char *name)
}
jit_node_t *
_jit_note(jit_state_t *_jit, char *name, int line)
_jit_note(jit_state_t *_jit, const char *name, int line)
{
jit_node_t *node;

8
lib/lightning.c
View file

@ -44,7 +44,7 @@
/*
* Prototypes
*/
static jit_word_t hash_data(jit_pointer_t, jit_word_t);
static jit_word_t hash_data(jit_const_pointer_t, jit_word_t);
#define new_pool() _new_pool(_jit)
static void _new_pool(jit_state_t*);
@ -536,9 +536,9 @@ _jit_load(jit_state_t *_jit, jit_int32_t reg)
}
static jit_word_t
hash_data(jit_pointer_t data, jit_word_t length)
hash_data(jit_const_pointer_t data, jit_word_t length)
{
jit_uint8_t *ptr;
const jit_uint8_t *ptr;
jit_word_t i, key;
for (i = key = 0, ptr = data; i < length; i++)
key = (key << (key & 1)) ^ ptr[i];
@ -558,7 +558,7 @@ _jit_address(jit_state_t *_jit, jit_node_t *node)
}
jit_node_t *
_jit_data(jit_state_t *_jit, jit_pointer_t data,
_jit_data(jit_state_t *_jit, jit_const_pointer_t data,
jit_word_t length, jit_int32_t align)
{
jit_word_t key;