src/sys/alpha/linux/linux_sysvec.c, branch release/5.2.1

Add sysentvec->sv_fixlimits() hook so that we can catch cases on 64 bit

2003-09-25T01:10:26+00:00

systems where the data/stack/etc limits are too big for a 32 bit process.

Move the 5 or so identical instances of ELF_RTLD_ADDR() into imgact_elf.c.

Supply an ia32_fixlimits function.  Export the clip/default values to
sysctl under the compat.ia32 heirarchy.

Have mmap(0, ...) respect the current p->p_limits[RLIMIT_DATA].rlim_max
value rather than the sysctl tweakable variable.  This allows mmap to
place mappings at sensible locations when limits have been reduced.

Have the imgact_elf.c ld-elf.so.1 placement algorithm use the same
method as mmap(0, ...) now does.

Note that we cannot remove all references to the sysctl tweakable
maxdsiz etc variables because /etc/login.conf specifies a datasize
of 'unlimited'.  And that causes exec etc to fail since it can no
longer find space to mmap things.

Rename P_THREADED to P_SA. P_SA means a process is using scheduler

2003-06-15T00:31:24+00:00

activations.

Use __FBSDID().

2003-06-10T17:02:51+00:00

Add missing includes from previous commit.

2003-03-27T18:18:35+00:00

Reported by:	des

Add a cleanup function to destroy the osname_lock and call it on module

2003-03-26T18:29:44+00:00

unload.

Submitted by:	gallatin
Reported by:	Martin Karlsson

Sync up linux and svr compat elf fixup functions for exec(). These

2003-03-21T19:49:34+00:00

functions are now all basically identical except that alpha linux uses
Elf64 arguments and svr4 and i386 linux use Elf32.  The fixups include
changing the first argument to be a register_t ** to match the prototype
for fixup functions, asserting that the process in the image_params struct
is always curproc and removing unnecessary locking to read credentials as a
result, and a few style fixes.

Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to

2002-09-01T21:41:24+00:00

sysentvec.  Initialized all fields of all sysentvecs, which will allow
them to be used instead of constants in more places.  Provided stack
fixup routines for emulations that previously used the default.

Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable

2002-07-20T02:56:12+00:00

handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).

Fix typo in the BSD copyright: s/withough/without/

2002-06-02T20:05:59+00:00

Spotted and suggested by:	des
MFC after:	3 weeks

Remove __P(). This was tested on the GENERIC kernel.

2002-03-20T18:58:47+00:00