static always_inline int clz32(uint32_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
if (val)
return __builtin_clz(val);
else
static always_inline int clz64(uint64_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
if (val)
return __builtin_clzll(val);
else
static always_inline int ctz32 (uint32_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
if (val)
return __builtin_ctz(val);
else
static always_inline int ctz64 (uint64_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
if (val)
return __builtin_ctz(val);
else
static always_inline int ctpop32 (uint32_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
return __builtin_popcount(val);
#else
val = (val & 0x55555555) + ((val >> 1) & 0x55555555);
static always_inline int ctpop64 (uint64_t val)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
return __builtin_popcountll(val);
#else
val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL);
#include "hw.h"
#include "pc.h"
#include "qemu-timer.h"
+#include "osdep.h"
//#define DEBUG_APIC
//#define DEBUG_IOAPIC
/* Find first bit starting from msb */
static int fls_bit(uint32_t value)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
return 31 - __builtin_clz(value);
#else
unsigned int ret = 0;
/* Find first bit starting from lsb */
static int ffs_bit(uint32_t value)
{
-#if defined(__GNUC__) && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#if QEMU_GNUC_PREREQ(3, 4)
return __builtin_ffs(value) - 1;
#else
unsigned int ret = 0;
#define qemu_printf printf
+#if defined (__GNUC__) && defined (__GNUC_MINOR_)
+# define QEMU_GNUC_PREREQ(maj, min) \
+ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+#else
+# define QEMU_GNUC_PREREQ(maj, min) 0
+#endif
+
void *qemu_memalign(size_t alignment, size_t size);
void *qemu_vmalloc(size_t size);
void qemu_vfree(void *ptr);