__SYS_REG 1280 third_party/tcmalloc/chromium/src/base/linux_syscall_support.h __SYS_REG(name) \ __SYS_REG 1406 third_party/tcmalloc/chromium/src/base/linux_syscall_support.h __SYS_REG(clone) __SYS_REG 1196 third_party/tcmalloc/vendor/src/base/linux_syscall_support.h __SYS_REG(name) \ __SYS_REG 1322 third_party/tcmalloc/vendor/src/base/linux_syscall_support.h __SYS_REG(clone)