12-04-2007
The procedure to build a kernel varies quite a bit from one release of HP-UX to another. Here is a
link to one of the procedures. I do not recommend copying /stand/system from one system to the next. Note that the procedure documented in that link does not trust /stand/system even on the box it was created on. The HP procedure recreates the system file each time a kernel is built. Also, depending on what you want to change, you may not need to rebuild the kernel. Again, stuff that is dynamicly reconfigurable also changes from release to release. You really need to look up the procedures for your HP-UX release and follow those. If the boxes are absolutely identical, copying /stand/vmunix over might work. But that is dangerous and could result in an unbootable system if anything goes wrong.
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LEARN ABOUT FREEBSD
sigreturn
SIGRETURN(2) BSD System Calls Manual SIGRETURN(2)
NAME
sigreturn -- return from signal
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <signal.h>
int
sigreturn(const ucontext_t *scp);
DESCRIPTION
The sigreturn() system call allows users to atomically unmask, switch stacks, and return from a signal context. The thread's signal mask and
stack status are restored from the context structure pointed to by scp. The system call does not return; the users stack pointer, frame
pointer, argument pointer, and processor status longword are restored from the context. Execution resumes at the specified pc. This system
call is used by the trampoline code and longjmp(3) when returning from a signal to the previously executing program.
RETURN VALUES
If successful, the system call does not return. Otherwise, a value of -1 is returned and errno is set to indicate the error.
ERRORS
The sigreturn() system call will fail and the thread context will remain unchanged if one of the following occurs.
[EFAULT] The scp argument points to memory that is not a valid part of the process address space.
[EINVAL] The process status longword is invalid or would improperly raise the privilege level of the process.
SEE ALSO
sigaction(2), setjmp(3), ucontext(3)
HISTORY
The sigreturn() system call appeared in 4.3BSD.
BSD
September 6, 2013 BSD