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f9e68a2c82
Guard the native endian APIs we want to remove by surrounding them with TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API #ifdef'ry. Once a target gets cleaned we'll set the definition in the target config, then the target won't be able to use the legacy API anymore. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20260109165058.59144-19-philmd@linaro.org>
76 lines
1.4 KiB
C
76 lines
1.4 KiB
C
/*
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* Macros for swapping a value if the endianness is different
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* between the target and the host.
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*
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* SPDX-License-Identifier: LGPL-2.1-or-later
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*/
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#ifndef TSWAP_H
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#define TSWAP_H
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#include "qemu/bswap.h"
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#include "qemu/target-info.h"
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/*
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* If we're in target-specific code, we can hard-code the swapping
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* condition, otherwise we have to do (slower) run-time checks.
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*/
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#ifdef COMPILING_PER_TARGET
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#define target_needs_bswap() (HOST_BIG_ENDIAN != TARGET_BIG_ENDIAN)
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#else
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#define target_needs_bswap() (HOST_BIG_ENDIAN != target_big_endian())
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#endif /* COMPILING_PER_TARGET */
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#if defined(CONFIG_USER_ONLY) \
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|| !defined(TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API)
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static inline uint16_t tswap16(uint16_t s)
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{
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if (target_needs_bswap()) {
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return bswap16(s);
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} else {
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return s;
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}
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}
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static inline uint32_t tswap32(uint32_t s)
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{
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if (target_needs_bswap()) {
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return bswap32(s);
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} else {
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return s;
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}
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}
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static inline uint64_t tswap64(uint64_t s)
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{
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if (target_needs_bswap()) {
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return bswap64(s);
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} else {
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return s;
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}
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}
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static inline void tswap16s(uint16_t *s)
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{
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if (target_needs_bswap()) {
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*s = bswap16(*s);
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}
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}
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static inline void tswap32s(uint32_t *s)
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{
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if (target_needs_bswap()) {
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*s = bswap32(*s);
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}
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}
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static inline void tswap64s(uint64_t *s)
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{
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if (target_needs_bswap()) {
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*s = bswap64(*s);
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}
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}
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#endif
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#endif /* TSWAP_H */
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