Line data    Source code

       1             : #ifdef __PLUMED_HAS_ASMJIT
       2             : // This file is part of AsmJit project <https://asmjit.com>
       3             : //
       4             : // See asmjit.h or LICENSE.md for license and copyright information
       5             : // SPDX-License-Identifier: Zlib
       6             : 
       7             : #include "api-build_p.h"
       8             : #include "environment.h"
       9             : 
      10             : ASMJIT_BEGIN_NAMESPACE
      11             : 
      12             : // X86 Target
      13             : // ----------
      14             : //
      15             : //   - 32-bit - Linux, OSX, BSD, and apparently also Haiku guarantee 16-byte
      16             : //              stack alignment. Other operating systems are assumed to have
      17             : //              4-byte alignment by default for safety reasons.
      18             : //   - 64-bit - stack must be aligned to 16 bytes.
      19             : //
      20             : // ARM Target
      21             : // ----------
      22             : //
      23             : //   - 32-bit - Stack must be aligned to 8 bytes.
      24             : //   - 64-bit - Stack must be aligned to 16 bytes (hardware requirement).
      25       27492 : uint32_t Environment::stackAlignment() const noexcept {
      26       27492 :   if (is64Bit()) {
      27             :     // Assume 16-byte alignment on any 64-bit target.
      28             :     return 16;
      29             :   }
      30             :   else {
      31             :     // The following platforms use 16-byte alignment in 32-bit mode.
      32           0 :     if (isPlatformLinux() ||
      33           0 :         isPlatformBSD() ||
      34           0 :         isPlatformApple() ||
      35             :         isPlatformHaiku()) {
      36             :       return 16u;
      37             :     }
      38             : 
      39           0 :     if (isFamilyARM())
      40             :       return 8;
      41             : 
      42             :     // Bail to 4-byte alignment if we don't know.
      43           0 :     return 4;
      44             :   }
      45             : }
      46             : 
      47             : ASMJIT_END_NAMESPACE
      48             : 
      49             : #endif // __PLUMED_HAS_ASMJIT