crt0_ia(3) Library Functions Manual crt0_ia(3)
NAME
crt0_ia: crt0.o - execution startup routines for Integrity systems
SYNOPSIS
Remarks
This manpage describes for Integrity systems. For on PA-RISC systems, see crt0_pa(3).
DESCRIPTION
The C, aC++, and FORTRAN compilers link in the object file for statically-bound programs to provide startup capabilities and environments
for program execution. It contains startup code that must be linked using to every statically-bound program. In a dynamically linked
program (the default method), the object file is not used, and all actions normally associated with it are instead done by the dynamic
loader dld.so(5).
processes initializers and terminators. Initializers are routines that are called before the program entry point and terminators are rou-
tines that are called when the program terminates via the routine. Initializers are invoked in reverse order of the link line so that
dependent libraries are initialized before the libraries that depend on them. Terminators, on the other hand, are invoked in the forward
order.
does not define any variables. It, however, sets the following global variables:
A variable of type long containing the number of arguments.
An array of character pointers to the arguments themselves.
An array of character pointers to the environment in which the
program will run. This array is terminated by a null pointer.
A variable of type long containing the system id value for an executable program.
A variable of type long containing the requested thread local storage size. This variable is initialized with data from the ker-
nel.
A variable of type void * containing load information passed from the kernel.
A variable of type void * whose value equals to the global pointer.
A symbol named is also declared in as an enumeration constant, and is incompatible with the declaration in In
order to include both header files, it is necessary to define the macro before including This will force the
header file to omit the conflicting definition of The enumeration constant is equivalent to in that context, and
may be used instead. See ttrace(2).
AUTHOR
The features described in this entry originated from AT&T UNIX System III.
FILES
SEE ALSO
System Tools
aCC(1) invoke the HP-UX aC++ compiler
cc(1) invoke the HP-UX C compiler
dld.so(5) the dynamic loader
exec(2) execute a file
f90(1) invoke the HP-UX FORTRAN compiler
ld(1) invoke the link editor
Miscellaneous
end(3C) symbol of the last locations in program
Integrity Systems Only crt0_ia(3)
