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Detect if using C99 and use correct inline asm notation

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This commit is contained in:
Juliusz Sosinowicz
2023-12-27 17:25:08 +01:00
parent 4b21cf3efc
commit 157753defe
1 changed files with 11 additions and 4 deletions
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15
wolfssl/wolfcrypt/wc_port.h
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@ -1180,15 +1180,22 @@ WOLFSSL_ABI WOLFSSL_API int wolfCrypt_Cleanup(void);
#endif
#endif
#ifdef WOLF_C99
/* use alternate keyword for compatibility with -std=c99 */
#define XASM_VOLATILE(a) __asm__ volatile(a)
#else
#define XASM_VOLATILE(a) asm volatile(a)
#endif
#ifndef WOLFSSL_NO_FENCE
#if defined (__i386__) || defined(__x86_64__)
#define XFENCE() asm volatile("lfence")
#define XFENCE() XASM_VOLATILE("lfence")
#elif defined (__arm__) || defined(__aarch64__)
#define XFENCE() asm volatile("isb")
#define XFENCE() XASM_VOLATILE("isb")
#elif defined(__riscv)
#define XFENCE() asm volatile("fence")
#define XFENCE() XASM_VOLATILE("fence")
#elif defined(__PPC__)
#define XFENCE() asm volatile("isync; sync")
#define XFENCE() XASM_VOLATILE("isync; sync")
#else
#define XFENCE() do{}while(0)
#endif