pike.git / src / pike_cpulib.c

version» Context lines:

pike.git/src/pike_cpulib.c:13: Inside #if defined(HAVE_X86_ASM)
  #if !defined (CL_X86_ASM_STYLE) && !defined (GCC_X86_ASM_STYLE)   #error Dont know how to inline assembler with this compiler   #endif      PMOD_EXPORT void x86_get_cpuid(int oper, INT32 *cpuid_ptr)   /* eax -> cpuid_ptr[0]    * ebx -> cpuid_ptr[1]    * edx -> cpuid_ptr[2]    * ecx -> cpuid_ptr[3] */   { - #ifdef HAVE_X86_64_ASM - #define cpuid_supported 1 - #else /* HAVE_IA32_ASM */ -  static int cpuid_supported = 0; -  if (!cpuid_supported) { -  int fbits=0; +    #ifdef CL_X86_ASM_STYLE    __asm { -  pushf -  pop eax -  mov ecx, eax -  xor eax, 00200000h -  push eax -  popf -  pushf -  pop eax -  xor ecx, eax -  mov fbits, ecx -  }; - #else /* GCC_X86_ASM_STYLE */ -  /* Note: gcc swaps the argument order... */ -  __asm__("pushf\n\t" -  "pop %%eax\n\t" -  "movl %%eax, %%ecx\n\t" -  "xorl $0x00200000, %%eax\n\t" -  "push %%eax\n\t" -  "popf\n\t" -  "pushf\n\t" -  "pop %%eax\n\t" -  "xorl %%eax, %%ecx\n\t" -  "movl %%ecx, %0" -  : "=m" (fbits) -  : -  : "cc", "eax", "ecx"); - #endif -  if (fbits & 0x00200000) { -  cpuid_supported = 1; -  } else { -  cpuid_supported = -1; -  } -  } - #endif /* HAVE_IA32_ASM */ -  -  if (cpuid_supported > 0) { - #ifdef CL_X86_ASM_STYLE -  __asm { +     mov eax, oper;    mov edi, cpuid_ptr;    cpuid;    mov [edi], eax;    mov [edi+4], ebx;    mov [edi+8], edx;    mov [edi+12], ecx;    };   #else /* GCC_X86_ASM_STYLE */   
pike.git/src/pike_cpulib.c:91:    __asm__ __volatile__("push %%rbx \n\t" /* save %rbx */    "cpuid \n\t"    "movl %%ebx, %1 \n\t" /* save what cpuid just put in %ebx */    "pop %%rbx \n\t" /* restore the old %rbx */    : "=a"(cpuid_ptr[0]),    "=r"(cpuid_ptr[1]),    "=d"(cpuid_ptr[2]),    "=c"(cpuid_ptr[3])    : "0"(oper)    : "cc"); - #endif - #endif -  } else { -  cpuid_ptr[0] = cpuid_ptr[1] = cpuid_ptr[2] = cpuid_ptr[3] = 0; + #endif /* SIZEOF_CHAR_P == 4 */ + #endif /* CL_X86_ASM_STYLE */   } - } +       #endif /* HAVE_IA32_ASM */