HP-UX 11.0 provides a cross-platform development environment.
You can compile and link both 32-bit and 64-bit applications on
HP-UX 11.0 32-bit systems. Also, you can compile and link both 32-bit
and 64-bit applications on HP-UX 11.0 64-bit systems.
You can optionally install 64-bit versions of HP-UX 11.0 system
libraries on HP-UX 11.0 32-bit systems for cross-development. The
64-bit system libraries are in separate directories from the 32-bit
system libraries.
Linking 32-bit and 64-bit object files (.o,
.sl, .a)
together is not supported. All modules in a program must be linked
from either 32-bit objects or 64-bit objects.
You will need access to a 64-bit hardware platform running
the 64-bit version of HP-UX 11.0 in order to test 64-bit programs.
Compiler Options for Cross Development |
 |
Unless specified, HP compilers generate object files that
are compatible with the hardware on which you are compiling.
HP-UX 64-bit platforms use the PA-RISC 2.0 system architecture.
The default compilation mode for these systems is 32-bit narrow
mode for PA-RISC 2.0. PA-RISC 2.0 narrow mode programs only run
on PA-RISC 2.0 systems. The compiler command line option for this
mode is +DA2.0
or +DA2.0N. (+DA
means destination architecture.)
HP compilers generate 64-bit mode code when you specify the
+DA2.0W command-line
option. This is known as PA-RISC 2.0 wide mode. PA-RISC 2.0 wide
mode programs only run on PA-RISC 2.0 systems running the 64-bit
version of HP-UX.
Table 1-2 “Compiler Option / Hardware Architecture
Run-time Compatibility ” shows various compiler
options for compiling to 32-bit and 64-bit mode and what systems
the executables run on:
Table 1-2 Compiler Option / Hardware Architecture
Run-time Compatibility
Option | PA-RISC 1.1 32-bit Platforms | PA-RISC 2.0 64-bit Platforms |
|---|
+DA1.1 | X | X |
+DAportable | X | X |
+DA2.0
or +DA2.0N | N/A | X |
+DD64
[1] or +DA2.0W
[2] | N/A | X |
Please note the following cross-platform limitations:
Debugging and program dump analysis
tools for 64-bit programs are only supported on 64-bit HP-UX.
Kernel cross-platform development is not supported.
If the device driver refers to kernel header files and libraries,
development must be done on the same platform as the target run-time
platform.
Compiling in Networked Environments |
|
When compiles are performed using diskless workstations or
NFS-mounted file systems, the default code generation and scheduling
is based on the local host processor. The system model numbers of
the hosts where the source files reside do not affect the default
code generation.
For More Information:
See the /opt/langtools/lib/sched.models
file for system model numbers, architectures, and processor names.
Use the command model
to determine the model number of your system.
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