Identifying user managed software modules

Patent metadata

Field	Value
Publication number	US-10013249-B2
Application number	US-201715403645-A
Country	US
Kind code	B2
Filing date	Jan 11, 2017
Priority date	Dec 18, 2015
Publication date	Jul 3, 2018
Grant date	Jul 3, 2018

Abstract

A method for identifying user managed software modules includes: receiving a query that includes an input module name or an input address range. The method further includes, responsive to determining that the input module name or input address range of the received query is not stored in one or more data structures identifying one or more software modules that have been loaded into memory without a directed load, searching a data structure identifying software modules that have been loaded into memory via directed loads for the respective input module name or input address range.

First claim

What is claimed is:

1. A computer-implemented method comprising:
in response to a computer system storing a software module at an address according to a request for a directed load, adding, by the computer system, a name and an address range of the stored software module to a data structure identifying software modules that have been loaded into memory via directed loads;
receiving, by the computer system, a query that includes an input module name or an input address range; and
responsive to determining that the input module name or input address range of the received query is not stored in one or more data structures identifying one or more software modules that have been loaded into memory without a directed load, searching, by the computer system, the data structure identifying software modules that have been loaded into memory via directed loads for the respective input module name or input address range.

2. The computer-implemented method of claim 1 , further comprising:
responsive to determining that the input module name of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, returning, by the computer system, an address range associated with a software module matching the input module name in the data structure.

3. The computer-implemented method of claim 1 , further comprising:
responsive to determining that the input address range of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, returning, by the computer system, a name associated with a software module matching the input address range in the data structure.

4. The computer-implemented method of claim 1 , further comprising:
responsive to determining that the input module name or input address range of the received query is not stored in the data structure identifying software modules that have been loaded into memory via directed loads, returning, by the computer system, an indication that no match has been found.

5. The computer-implemented method of claim 1 , wherein the data structure identifying software modules that have been loaded into memory via directed loads includes a wrapping feature that replaces older entries when space for newer entries is required.

6. The computer-implemented method of claim 1 , wherein the data structure identifying software modules that have been loaded into memory via directed loads is a table.

7. The computer-implemented method of claim 1 , wherein the one or more data structures identifying one or more software modules that have been loaded into memory without directed loads includes one or more system control blocks.

8. A computer program product comprising:
one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising:
program instructions to, in response to a computer system storing a software module at an address according to a request for a directed load, add a name and an address range of the stored software module to a data structure identifying software modules that have been loaded into memory via directed loads;
program instructions to receive a query that includes an input module name or an input address range; and
program instructions to, responsive to determining that the input module name or input address range of the received query is not stored in one or more data structures identifying one or more software modules that have been loaded into memory without a directed load, search the data structure identifying software modules that have been loaded into memory via directed loads for the respective input module name or input address range.

9. The computer program product of claim 8 , further comprising:
program instructions to, responsive to determining that the input module name of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, return an address range associated with a software module matching the input module name in the data structure.

10. The computer program product of claim 8 , further comprising:
program instructions to, responsive to determining that the input address range of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, return a name associated with a software module matching the input address range in the data structure.

11. The computer program product of claim 8 , further comprising:
program instructions to, responsive to determining that the input module name or input address range of the received query is not stored in the data structure identifying software modules that have been loaded into memory via directed loads, return an indication that no match has been found.

12. The computer program product of claim 8 , wherein the data structure identifying software modules that have been loaded into memory via directed loads includes a wrapping feature that replaces older entries when space for newer entries is required.

13. The computer program product of claim 8 , wherein the data structure identifying software modules that have been loaded into memory via directed loads is a table.

14. The computer program product of claim 8 , wherein the one or more data structures identifying one or more software modules that have been loaded into memory without directed loads include one or more system control blocks.

15. A computer system comprising:
one or more computer processors;
one or more computer readable storage media;
program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:
program instructions to, in response to a computer system storing a software module at an address according to a request for a directed load, add a name and an address range of the stored software module to a data structure identifying software modules that have been loaded into memory via directed loads;
program instructions to receive a query that includes an input module name or an input address range; and
program instructions to, responsive to determining that the input module name or input address range of the received query is not stored in one or more data structures identifying one or more software modules that have been loaded into memory without a directed load, search the data structure identifying software modules that have been loaded into memory via directed loads for the respective input module name or input address range.

16. The computer system of claim 15 , further comprising:
program instructions to, responsive to determining that the input module name of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, return an address range associated with a software module matching the input module name in the data structure.

17. The computer system of claim 15 , further comprising:
program instructions to, responsive to determining that the input address range of the received query is stored in the data structure identifying software modules that have been loaded into memory via directed loads, return a name associated with a software module matching the input address range in the data structure.

18. The computer system of claim 15 , further comprising:
program instructions to, responsive to determining tha

Assignees

• IBM

Inventors

• Relson Peter J
• Thiemann Ulrich

Classifications

• G06F9/44521 Primary

  Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading · CPC title

• G06F8/70 Primary

  Software maintenance or management · CPC title

• G06F9/445

  Program loading or initiating (bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57) · CPC title

• G06F9/44557

  Code layout in executable memory · CPC title

• G06F16/2282

  Tablespace storage structures; Management thereof · CPC title