Linux Standard Base Core Specification for S390 | ||
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The ESA/390 Architecture is specified by the following documents
Only the features of ESA/390 processor instruction set and the following optional instructions may be assumed to be present:
additional floating point facility
compare and move extended facility
immediate and relative instruction facility
string instruction facility
square-root facility
An application should determine if any additional instruction set features are available before using those additional features. If a feature is not present, then a conforming application shall not use it.
Conforming applications shall not invoke the implementations underlying system call interface directly. The interfaces in the implementation base libraries shall be used instead.
Rationale: Implementation-supplied base libraries may use the system call interface but applications must not assume any particular operating system or kernel version is present.
Applications conforming to this specification must provide feedback to the user if a feature that is required for correct execution of the application is not present. Applications conforming to this specification should attempt to execute in a diminished capacity if a required instruction set feature is not present.
This specfication does not provide any performance guarantees of a conforming system. A system conforming to this specification may be implemented in either hardware or software.
LSB-conforming applications shall use the data representation as defined in Chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
See chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
See chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
See chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
See chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
See chapter 1 of the LINUX for S/390 ELF Application Binary Interface Supplement.
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