Document search order

Explain when and how LD_LIBRARY_PATH, DT_RUNPATH and DT_RPATH are used.

Input OK guenther

LD_DEBUG is ignored for set-user-ID and set-group-ID executables

from Miod

spelling/consistency fix; from nam nguyen

Remove prebind support: binding to symbol table indices is too fragile
for our development process.

ok kettenis@ deraadt@

Delete descriptions of env variables that we don't actually support.
They all sound like bad ideas anyway.

ok matthew@ deraadt@

Remove LD_NORANDOM feature. It serves no usable purpose. Determinism
in this one specific area is not going to help debugging, because so
many other parts are non-deterministic.
ok guenthre matthew

Remove LD_NORANDOM feature. It serves no usable purpose. Determinism
in this one specific area is not going to help debugging, because so
many other parts are non-deterministic.
ok guenthre matthew jsing

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no more link(5). either remove references entirely, or point folks
to elf(5) instead;

ok miod

Remove an OpenBSD-specific tweak regarding .Xr spacing
and make it compatible with bsd.lv mandoc and with groff-1.21.
This tweak was originally added for compatibility with groff-1.15,
which is no lo

Remove an OpenBSD-specific tweak regarding .Xr spacing
and make it compatible with bsd.lv mandoc and with groff-1.21.
This tweak was originally added for compatibility with groff-1.15,
which is no longer needed.

ok jmc@ kristaps@

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prepends, not overrides default search path. with/ok kurt@

convert to new .Dd format;

document differences between LD_TRACE_LOADED_OBJECTS_FMT1 and
LD_TRACE_LOADED_OBJECTS_FMT2;

based on a diff from Michel Lavondes;
help/ok drahn

properly escape "%O"; ok jason

s/library/object for the format string stuff

add support for LD_TRACE_LOADED_OBJECTS_{FMT1/FMT2/PROGNAME}. Functionality
matches and expands on the old a.out ld.so formatting. ok drahn

These two env vars don't have a `=' in their name.

ok jmc

Fix wordo, pointed out by jmc@

prebind - how to prelink a binary without throwing security out the window

Prelink fixes the address of libraries making 'return to libc' attacks trival,
prebind uses a different method to achieve m

prebind - how to prelink a binary without throwing security out the window

Prelink fixes the address of libraries making 'return to libc' attacks trival,
prebind uses a different method to achieve most of the same gains, however
without adding any security conerns.

Still under development, now in-tree.

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Missing .Pp in -compact list

ok jmc@

minimal documentation for LD_DEBUG.
okay millert@, miod@

double `the the';

- smaller list width
- <> -> .Aq
- macro cleanup
- also kills a (new) groff warning

- document LD_BIND_NOW
- new sentence, new line
- comment out comments

patch from (and ok) drahn@

document LD_NORANDOM; input and ok from several ppl.

- simplify some macros
- fix a list

ok drahn@

put it in section 1