__NR_gettid 226 arch/x86/include/generated/uapi/asm/unistd_32.h #define __NR_gettid 224 __NR_gettid 190 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_gettid 186 __NR_gettid 168 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_gettid (__X32_SYSCALL_BIT + 186)