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Fix illegal instruction crash on some ARM systems #202

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May 22, 2021
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Fix illegal instruction crash on some ARM systems #202

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4 changes: 4 additions & 0 deletions src/jit_compiler_a64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -95,6 +95,10 @@ JitCompilerA64::JitCompilerA64()
{
memset(reg_changed_offset, 0, sizeof(reg_changed_offset));
memcpy(code, (void*) randomx_program_aarch64, CodeSize);

#ifdef __GNUC__
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Is this really gcc-specific? The Android SDK uses clang, will this work there, or is some other fix needed for an Android build?

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It's a GCC-specific builtin, but clang supports it and even defines __GNUC__. Also, the same #ifdef is used in other places here.

__builtin___clear_cache(reinterpret_cast<char*>(code), reinterpret_cast<char*>(code + CodeSize));
#endif
}

JitCompilerA64::~JitCompilerA64()
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