Abstract: An operating system architecture and method which provides for transparent inheritance of memory management policies in data processing systems and enhanced memory management is disclosed. The operating system provides for a special “debug” process flag to be associated with debug and device management processes. When a source process transmits a message to a destination process, the operating system determines whether the source process is a debug process (i.e., whether the source process contains a debug process flag indicator associated therewith). If the source process is a debug process, a debug process flag indicator is also associated with the destination process. The operating system also reserves a portion of the device's memory (a reserve memory pool) which is only allocated to special “debug” process when the non-reserved pool of memory is depleted.

Abstract: A system and method for determining where bottlenecks in a program's data accesses occur and providing information to a software developer as to why the bottlenecks occur and what may be done to correct them. A stream of data access references is analyzed to determine data access patterns (also called data access sequences). The stream is analyzed to find frequently repeated data access sequences (called hot data streams). Properties of the hot data streams are calculated and upon selection of a hot data stream are displayed in a development tool that associates lines of code with the hot data streams.

Abstract: A method, a computer-implemented apparatus, and a computer program product for identifying a global breakpoint for debugging computer software are disclosed. The method includes the step of representing the global breakpoint in software code using an identifier of an executable file and an offset in the executable file. Preferably, the file identifier is an inode of a Unix or Unix-like operating system.

Abstract: An improved source-level debugger for object-oriented application programs which may include linked native language dynamic load libraries. The debugger is compatible with the Java Platform Debugger Architecture (“JPDA”), and provides new capabilities such as patching of Java variables and reading and writing strings from and to the application under test and being run by a local or remote Java Virtual Machine.

Abstract: A computer method, system and program product for debugging and/or monitoring an instruction set and having an improved breakpoint handling mechanism involving a hardware debug register set (or like breakpoint register means). Instead of patching a break instruction into a debuggee instruction sequence, re-inserting the original instruction and then single stepping through that instruction before replacing it with the patch, the original instruction is left in place and continuous execution is resumed. Before resuming however, the breakpoint register is set so that the break instruction can be re-applied while a flag (eg the Intel RF flag) is set so as to prevent a hardware break before that is desired.