CVS log for src/libexec/ld.elf_so/xprintf.c

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Keyword substitution: kv
Default branch: MAIN

pretend we know about %# and %j...

Merge changes from current as of 20200406

Fix typo in a comment.

Replace use of errlist with a single concatenated version and an offset
array. This requires less storage and avoids one runtime relocation per
errno value.

warns=4

sync with HEAD

support %z

not supporting %c is confusing and it only uses up a few bytes.

Add __RCSIDs.

OK'd by mycroft.

Apply patch (request by skrll in ticket #1702):
Bring "ld.elf_so" (mostly) in sync with NetBSD-current:
- MI and MD (e.g. under NetBSD-alpha) performance improvements
- RTLD_SELF, RTLD_NEXT, RTLD_DEFAULT support
- much better structured code
- closes PR bin/25464

Don't assume past the mmaped region is accessible.

ANSIfy and de-__P().

KNF- blank lines before code at start of functions.

Similarly, remove support for short arguments.

Remove quad support.  We don't need it, and it wastes a lot of space.  (It
pulls in {,u}{div,mod}di3() and qdivrem().)

Include xassert() only if DEBUG, like the real assert().
Also, xassert() calls abort(), so there's no need to do it in all of the
callers.

xerrx() needs to output a trailing newline as well

__STDC__ is always defined on NetBSD.

Pull up revisions 1.7-1.8 (requested by skrll):
  Add init/fini section support in crtbegin and crtend, and introduce
  support for DWARF2 exception handling.  Fixes PR#12865, PR#13488,
  PR#13489, and PR#13491.  Also fix ld.elf_so to deal appropriately.

Pointers are NULL.  Characters are '\0'.

Treat short and byte print formats as and cast to the right size.

Also print a newline after the error in the xwarnx case.

Make this compile without -DRTLD_LOADER and fix printf format problems on
the alpha.

KNF

Replace local xva_arg() inline function with macros similar to those in
the stdio vfprintf() function.  Fixes compilation errors on powerpc due
to differences in how va_list is implemented.

Support for {h,l,q,ll} modifiers and %p

First cut at an ELF shared loader.  Originally from John Polstra's FreeBSD elf
kit, then hacked on by Matt Thomas <matt@3am-software.com>, then by me (to
make it work with new versions of the toolchain, etc.).  This runs, but it's
in serious need of cleaning and/or a fair bit of reworking.  See the README
file for more information, and a list of things to do.