diff options
Diffstat (limited to 'lib/xray/xray_x86_64.cc')
| -rw-r--r-- | lib/xray/xray_x86_64.cc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/xray/xray_x86_64.cc b/lib/xray/xray_x86_64.cc index 3c12682cc..e17f00ac3 100644 --- a/lib/xray/xray_x86_64.cc +++ b/lib/xray/xray_x86_64.cc @@ -258,9 +258,9 @@ bool probeRequiredCPUFeatures() XRAY_NEVER_INSTRUMENT { // We check whether rdtscp support is enabled. According to the x86_64 manual, // level should be set at 0x80000001, and we should have a look at bit 27 in - // EDX. That's 0x8000000 (or 1u << 26). + // EDX. That's 0x8000000 (or 1u << 27). __get_cpuid(0x80000001, &EAX, &EBX, &ECX, &EDX); - if (!(EDX & (1u << 26))) { + if (!(EDX & (1u << 27))) { Report("Missing rdtscp support.\n"); return false; } |