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#ifndef __GLIBC_COMPAT_SYMBOLS_H__
#define __GLIBC_COMPAT_SYMBOLS_H__ 1
/**
*
* Note: Patching a specific glibc symbol version is only required if *not* statically linking glibc,
* which should be preferred.
*
* Note: JogAmp's minimum GLIBC is 2.4 due to '__stack_chk_fail' (stack overflow checking)
*
* GLIBC 2.4 - March 2006 - Standard for LSB 4.0, Used in SLES 10
*
* We could add compile/link option '-fno-stack-protector', however stack protection seems reasonable
* and a pre 2006 distribution a bit too 'far fetched' for our multimedia bindings anyway.
*
* Check build-in macro definitions via 'gcc -dM -E - < /dev/null'
*/
#if defined(__linux__) /* Actually we like to test whether we link against GLIBC .. */
#if defined(__GNUC__)
#if defined(__aarch64__)
/* glibc 2.17 is the first glibc version that support aarch64
however memcpy is not versioned for aarch64 */
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__arm__)
/** On recent toolchain memcpy is no more versioned for arm
#define GLIBC_COMPAT_SYMBOL(FFF) __asm__(".symver " #FFF "," #FFF "@GLIBC_2.4");
*/
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__PPC64__)
/* PPC64 has multiple versions of memcpy from glibc 2.3 and onwards
* while PPC64LE only has one (introduced in glibc 2.17). PPC64LE is
* the more common of the two now so skip versioning. */
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__amd64__)
#define GLIBC_COMPAT_SYMBOL(FFF) __asm__(".symver " #FFF "," #FFF "@GLIBC_2.2.5");
#else
#define GLIBC_COMPAT_SYMBOL(FFF) __asm__(".symver " #FFF "," #FFF "@GLIBC_2.0");
#endif /*__amd64__*/
#elif defined(__clang__)
#if defined(__aarch64__)
/* glibc 2.17 is the first glibc version that support aarch64
however memcpy is not versioned for aarch64 */
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__arm__)
/** On recent toolchain memcpy is no more versioned for arm
#define GLIBC_COMPAT_SYMBOL(FFF) __asm__(".symver " #FFF "," #FFF "@GLIBC_2.4");
*/
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__PPC64__)
/* PPC64 has multiple versions of memcpy from glibc 2.3 and onwards
* while PPC64LE only has one (introduced in glibc 2.17). PPC64LE is
* the more common of the two now so skip versioning. */
#define GLIBC_COMPAT_SYMBOL(FFF)
#elif defined(__amd64__)
#define GLIBC_COMPAT_SYMBOL(FFF) asm(".symver " #FFF "," #FFF "@GLIBC_2.2.5");
#else
#define GLIBC_COMPAT_SYMBOL(FFF) asm(".symver " #FFF "," #FFF "@GLIBC_2.0");
#endif /*__amd64__*/
#else
#warning GLIBC_COMPAT_SYMBOL not supported with current compiler on GNU/Linux
#define GLIBC_COMPAT_SYMBOL(FFF)
#endif
#else
#warning GLIBC_COMPAT_SYMBOL not supported with target OS
#define GLIBC_COMPAT_SYMBOL(FFF)
#endif
GLIBC_COMPAT_SYMBOL(memcpy)
#endif /*__GLIBC_COMPAT_SYMBOLS_H__*/
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