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libc-emcc: Use alternate method to check getrandom support (#3848)

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Benbuck Nason
2024-10-09 19:57:47 -07:00
committed by GitHub
parent deacb7a8d8
commit 2b5e2d9c2c
1 changed files with 10 additions and 6 deletions
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16
core/iwasm/libraries/libc-emcc/libc_emcc_wrapper.c
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@ -7,8 +7,13 @@
#include "bh_log.h" #include "bh_log.h"
#include "wasm_export.h" #include "wasm_export.h"
#include "../interpreter/wasm.h" #include "../interpreter/wasm.h"
#if !defined(_DEFAULT_SOURCE) && !defined(BH_PLATFORM_LINUX_SGX)
#include "sys/syscall.h" #if defined(__linux__)
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 17, 0)
#define HAVE_SYSCALL_GETRANDOM
#include <sys/syscall.h>
#endif
#endif #endif
/* clang-format off */ /* clang-format off */
@ -270,11 +275,10 @@ getentropy_wrapper(wasm_exec_env_t exec_env, void *buffer, uint32 length)
{ {
if (buffer == NULL) if (buffer == NULL)
return -1; return -1;
#if defined(_DEFAULT_SOURCE) || defined(BH_PLATFORM_LINUX_SGX) \ #if defined(HAVE_SYSCALL_GETRANDOM)
|| defined(__APPLE__)
return getentropy(buffer, length);
#else
return syscall(SYS_getrandom, buffer, length, 0); return syscall(SYS_getrandom, buffer, length, 0);
#else
return getentropy(buffer, length);
#endif #endif
} }