include/exec: Provide the tswap() functions for target independent code, too

In some cases of target independent code, it would be useful to have access
to the functions that swap endianess in case it differs between guest and
host. Thus re-implement the tswapXX() functions in a new header that can be
included separately. The check whether the swapping is needed continues to
be done at compile-time for target specific code, while it is done at
run-time in target-independent code.

Message-Id: <20230411183418.1640500-3-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 1 insertions, 63 deletions

diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index 090922e4a8..ad824fee52 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -21,6 +21,7 @@
 
 #include "exec/cpu-common.h"
 #include "exec/memory.h"
+#include "exec/tswap.h"
 #include "qemu/thread.h"
 #include "hw/core/cpu.h"
 #include "qemu/rcu.h"
@@ -44,69 +45,6 @@
 #define BSWAP_NEEDED
 #endif
 
-#ifdef BSWAP_NEEDED
-
-static inline uint16_t tswap16(uint16_t s)
-{
-    return bswap16(s);
-}
-
-static inline uint32_t tswap32(uint32_t s)
-{
-    return bswap32(s);
-}
-
-static inline uint64_t tswap64(uint64_t s)
-{
-    return bswap64(s);
-}
-
-static inline void tswap16s(uint16_t *s)
-{
-    *s = bswap16(*s);
-}
-
-static inline void tswap32s(uint32_t *s)
-{
-    *s = bswap32(*s);
-}
-
-static inline void tswap64s(uint64_t *s)
-{
-    *s = bswap64(*s);
-}
-
-#else
-
-static inline uint16_t tswap16(uint16_t s)
-{
-    return s;
-}
-
-static inline uint32_t tswap32(uint32_t s)
-{
-    return s;
-}
-
-static inline uint64_t tswap64(uint64_t s)
-{
-    return s;
-}
-
-static inline void tswap16s(uint16_t *s)
-{
-}
-
-static inline void tswap32s(uint32_t *s)
-{
-}
-
-static inline void tswap64s(uint64_t *s)
-{
-}
-
-#endif
-
 #if TARGET_LONG_SIZE == 4
 #define tswapl(s) tswap32(s)
 #define tswapls(s) tswap32s((uint32_t *)(s))