* __HAVE_SYSCALL_INTERN. If this is defined, e_syscall is replaced by
e_syscall_intern, which is called at key places in the kernel. This can be
used to set a MD syscall handler pointer. This obsoletes and replaces the
*_HAS_SEPARATED_SYSCALL flags.
* __HAVE_MINIMAL_EMUL. If this is defined, certain (deprecated) elements in
struct emul are omitted.
*_emul_path variables
change macros CHECK_ALT_{CREAT|EXIST} to use that, 'root' doesn't need
to be passed explicitly any more and *_CHECK_ALT_{CREAT|EXIST} are removed
change explicit emul_find() calls in probe functions to get the emulation
path from the checked exec switch entry's emulation
remove no longer needed header files
add e_flags and e_syscall to struct emul; these are unsed and empty for now
* move all exec-type specific information from struct emul to execsw[] and
provide single struct emul per emulation
* elf:
- kern/exec_elf32.c:probe_funcs[] is gone, execsw[] how has one entry
per emulation and contains pointer to respective probe function
- interp is allocated via MALLOC() rather than on stack
- elf_args structure is allocated via MALLOC() rather than malloc()
* ecoff: the per-emulation hooks moved from alpha and mips specific code
to OSF1 and Ultrix compat code as appropriate, execsw[] has one entry per
emulation supporting ecoff with appropriate probe function
* the makecmds/probe functions don't set emulation, pointer to emulation is
part of appropriate execsw[] entry
* constify couple of structures
A fair bit of this, the m68k core dump and exec goo, can probably be
made into a generic m68k hpux module, eventually.
More to be placed in hpux_machdep.c - keep your eyes peeled...
* It compiles (and links).
* Make use of "/emul/hpux" where applicable.
* Untangle a bit, pulling some funtions from the monolithic
hpux_compat.c into hpux_file.c, hpux_exec.c, etc.
* Fix a couple of bugs.
Yet to do:
* Move hp300-specific functions into hp300/hp300/hpux_machdep.c.
* Make everything work properly (you laugh...)
These changes are sufficient to run some simple HP-UX 9.x executables,
including ls(1) (which will read password and group information from the
YP server correctly, albeit slowly), a simple "hello world", uname(1),
and a few other odds and ends. Dynamically linked executables work, and
demand-paging _seems_ to work properly. Major problems:
* socket and/or signal handling appears to need some work yet.
* 99% sure I didn't do exactly the right thing adjusting for the
fact that "kstack" is gone now.
* ktrace(1)'ing some executables (HP-UX telnet(1) is what I tried)
causes the HP-UX executable to dump core with a SIGSEGV for an
as of yet unknown reason.
This is mostly meant as a checkpoint/snapshot, to make it easier for others
to track progress on this code, and hack on it themselves. It's certainly
better off now than before.
simonb