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-rw-r--r--iconv/gconv_int.h28
-rw-r--r--iconv/loop.c73
-rw-r--r--iconv/skeleton.c67
3 files changed, 28 insertions, 140 deletions
diff --git a/iconv/gconv_int.h b/iconv/gconv_int.h
index da792a9..4b247a8 100644
--- a/iconv/gconv_int.h
+++ b/iconv/gconv_int.h
@@ -26,6 +26,34 @@
__BEGIN_DECLS
+/* We have to provide support for machines which are not able to handled
+ unaligned memory accesses. Some of the character encodings have
+ representations with a fixed width of 2 or 4 bytes. */
+#define get16(addr) \
+({ \
+ const struct { uint16_t r; } __attribute__ ((__packed__)) *__ptr \
+ = (__typeof(__ptr))(addr); \
+ __ptr->r; \
+})
+#define get32(addr) \
+({ \
+ const struct { uint32_t r; } __attribute__ ((__packed__)) *__ptr \
+ = (__typeof(__ptr))(addr); \
+ __ptr->r; \
+})
+
+#define put16(addr, val) \
+do { \
+ struct { uint16_t r; } __attribute__ ((__packed__)) *__ptr \
+ = (__typeof(__ptr))(addr); \
+ __ptr->r = val; \
+} while (0)
+#define put32(addr, val) \
+do { \
+ struct { uint32_t r; } __attribute__ ((__packed__)) *__ptr \
+ = (__typeof(__ptr))(addr); \
+ __ptr->r = val; \
+} while (0)
/* Structure for alias definition. Simply two strings. */
struct gconv_alias
diff --git a/iconv/loop.c b/iconv/loop.c
index 963c59c..9d8a7cc 100644
--- a/iconv/loop.c
+++ b/iconv/loop.c
@@ -57,75 +57,10 @@
#include <stddef.h>
#include <libc-diag.h>
-/* We have to provide support for machines which are not able to handled
- unaligned memory accesses. Some of the character encodings have
- representations with a fixed width of 2 or 4 bytes. But if we cannot
- access unaligned memory we still have to read byte-wise. */
#undef FCTNAME2
#if _STRING_ARCH_unaligned || !defined DEFINE_UNALIGNED
-/* We can handle unaligned memory access. */
-# define get16(addr) *((const uint16_t *) (addr))
-# define get32(addr) *((const uint32_t *) (addr))
-
-/* We need no special support for writing values either. */
-# define put16(addr, val) *((uint16_t *) (addr)) = (val)
-# define put32(addr, val) *((uint32_t *) (addr)) = (val)
-
# define FCTNAME2(name) name
#else
-/* Distinguish between big endian and little endian. */
-# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define get16(addr) \
- (((const unsigned char *) (addr))[1] << 8 \
- | ((const unsigned char *) (addr))[0])
-# define get32(addr) \
- (((((const unsigned char *) (addr))[3] << 8 \
- | ((const unsigned char *) (addr))[2]) << 8 \
- | ((const unsigned char *) (addr))[1]) << 8 \
- | ((const unsigned char *) (addr))[0])
-
-# define put16(addr, val) \
- ({ uint16_t __val = (val); \
- ((unsigned char *) (addr))[0] = __val; \
- ((unsigned char *) (addr))[1] = __val >> 8; \
- (void) 0; })
-# define put32(addr, val) \
- ({ uint32_t __val = (val); \
- ((unsigned char *) (addr))[0] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[1] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[2] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[3] = __val; \
- (void) 0; })
-# else
-# define get16(addr) \
- (((const unsigned char *) (addr))[0] << 8 \
- | ((const unsigned char *) (addr))[1])
-# define get32(addr) \
- (((((const unsigned char *) (addr))[0] << 8 \
- | ((const unsigned char *) (addr))[1]) << 8 \
- | ((const unsigned char *) (addr))[2]) << 8 \
- | ((const unsigned char *) (addr))[3])
-
-# define put16(addr, val) \
- ({ uint16_t __val = (val); \
- ((unsigned char *) (addr))[1] = __val; \
- ((unsigned char *) (addr))[0] = __val >> 8; \
- (void) 0; })
-# define put32(addr, val) \
- ({ uint32_t __val = (val); \
- ((unsigned char *) (addr))[3] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[2] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[1] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[0] = __val; \
- (void) 0; })
-# endif
-
# define FCTNAME2(name) name##_unaligned
#endif
#define FCTNAME(name) FCTNAME2(name)
@@ -349,10 +284,6 @@ FCTNAME (LOOPFCT) (struct __gconv_step *step,
#if !defined DEFINE_UNALIGNED && !_STRING_ARCH_unaligned \
&& MIN_NEEDED_INPUT != 1 && MAX_NEEDED_INPUT % MIN_NEEDED_INPUT == 0 \
&& MIN_NEEDED_OUTPUT != 1 && MAX_NEEDED_OUTPUT % MIN_NEEDED_OUTPUT == 0
-# undef get16
-# undef get32
-# undef put16
-# undef put32
# undef unaligned
# define DEFINE_UNALIGNED
@@ -540,8 +471,4 @@ gconv_btowc (struct __gconv_step *step, unsigned char c)
#undef LOOP_NEED_STATE
#undef LOOP_NEED_FLAGS
#undef LOOP_NEED_DATA
-#undef get16
-#undef get32
-#undef put16
-#undef put32
#undef unaligned
diff --git a/iconv/skeleton.c b/iconv/skeleton.c
index 673b474..9423d3f 100644
--- a/iconv/skeleton.c
+++ b/iconv/skeleton.c
@@ -204,73 +204,6 @@
#endif
-/* Define macros which can access unaligned buffers. These macros are
- supposed to be used only in code outside the inner loops. For the inner
- loops we have other definitions which allow optimized access. */
-#if _STRING_ARCH_unaligned
-/* We can handle unaligned memory access. */
-# define get16u(addr) *((const uint16_t *) (addr))
-# define get32u(addr) *((const uint32_t *) (addr))
-
-/* We need no special support for writing values either. */
-# define put16u(addr, val) *((uint16_t *) (addr)) = (val)
-# define put32u(addr, val) *((uint32_t *) (addr)) = (val)
-#else
-/* Distinguish between big endian and little endian. */
-# if __BYTE_ORDER == __LITTLE_ENDIAN
-# define get16u(addr) \
- (((const unsigned char *) (addr))[1] << 8 \
- | ((const unsigned char *) (addr))[0])
-# define get32u(addr) \
- (((((const unsigned char *) (addr))[3] << 8 \
- | ((const unsigned char *) (addr))[2]) << 8 \
- | ((const unsigned char *) (addr))[1]) << 8 \
- | ((const unsigned char *) (addr))[0])
-
-# define put16u(addr, val) \
- ({ uint16_t __val = (val); \
- ((unsigned char *) (addr))[0] = __val; \
- ((unsigned char *) (addr))[1] = __val >> 8; \
- (void) 0; })
-# define put32u(addr, val) \
- ({ uint32_t __val = (val); \
- ((unsigned char *) (addr))[0] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[1] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[2] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[3] = __val; \
- (void) 0; })
-# else
-# define get16u(addr) \
- (((const unsigned char *) (addr))[0] << 8 \
- | ((const unsigned char *) (addr))[1])
-# define get32u(addr) \
- (((((const unsigned char *) (addr))[0] << 8 \
- | ((const unsigned char *) (addr))[1]) << 8 \
- | ((const unsigned char *) (addr))[2]) << 8 \
- | ((const unsigned char *) (addr))[3])
-
-# define put16u(addr, val) \
- ({ uint16_t __val = (val); \
- ((unsigned char *) (addr))[1] = __val; \
- ((unsigned char *) (addr))[0] = __val >> 8; \
- (void) 0; })
-# define put32u(addr, val) \
- ({ uint32_t __val = (val); \
- ((unsigned char *) (addr))[3] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[2] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[1] = __val; \
- __val >>= 8; \
- ((unsigned char *) (addr))[0] = __val; \
- (void) 0; })
-# endif
-#endif
-
-
/* For conversions from a fixed width character set to another fixed width
character set we can define RESET_INPUT_BUFFER in a very fast way. */
#if !defined RESET_INPUT_BUFFER && !defined SAVE_RESET_STATE
generated by cgit v1.1 at 2024-12-29 11:01:41 +0000