7.3. Operating System Interface

LSB-conforming applications shall use the Operating System Interfaces as defined in Chapter 3 of the Intel® Itanium™ Processor-specific Application Binary Interface.

7.3.1. Processor Execution Mode

Applications must assume that they will execute in the least privileged user mode (i.e. level 3). Other privilege levels are reserved for the Operating System.

7.3.2. Exception Interface

7.3.2.1. Introduction

LSB-conforming implementations shall support the exception interface as specified in Intel® Itanium™ Processor-specific Application Binary Interface, section 3.3.1.

7.3.3. Signal Delivery

LSB-conforming systems shall deliver signals as specified in Intel® Itanium™ Processor-specific Application Binary Interface, section 3.3.2.

7.3.3.1. Signal Handler Interface

The signal handler interface shall be as specified in Intel® Itanium™ Processor-specific Application Binary Interface, section 3.3.3.

7.3.4. Debugging Support

The LSB does not specify debugging information.

7.3.5. Process Startup

LSB-conforming systems shall initialize processes as specified in Intel® Itanium™ Processor-specific Application Binary Interface, section 3.3.5.