Commit Graph

121 Commits

Author SHA1 Message Date
ed
f590bf3733 ANSIfy ldconfig and the aout bits it still uses from rtld-aout.
(Why is aout support still there?)
2009-12-29 21:07:17 +00:00
delphij
830453071a 64-bit clean + WARNS=6:
- Convert the (char *) cast+cast backs magic to
	  memcpy(3).  Without this, the resulting code
	  is potentially risky with higher optimization
	  levels.
	- Avoid same name when calling local variables,
	  as well as global symbols.  This reduces
	  confusion for both human and compiler.
	- Add necessary casts, consts
	- Use new style function defination.
	- Minor style.Makefile(5) tweak
	- Bump WARNS?= from 0 to 6

** for the aout code: changes are intentionally limited
   to ease maintaince.
2005-01-14 12:22:57 +00:00
trhodes
4fcbaea729 Restore these files to make ldconfig(8) happy. 2005-01-11 16:40:29 +00:00
trhodes
8af8fbaa58 Remove a.out runtime linker. It doesn't build and was removed from the
build over two years ago by peter.

The binary a.out version of ld.so can be obtained from misc/compat22 or
src/lib/compat/compat22.

Discussed on:	-arch
Voted yes:	jhb, ru, linimon, delphij
2005-01-11 06:15:19 +00:00
ru
f0fbc30e0d Introduce the PRECIOUSPROG knob in bsd.prog.mk, similar
to PRECIOUSLIB from bsd.lib.mk.  The side effect of this
is making installing the world under jail(8) possible by
using another knob, NOFSCHG.

Reviewed by:	oliver
2004-11-03 18:01:21 +00:00
ru
20fbd172b2 Mechanically kill hard sentence breaks. 2004-07-02 21:28:50 +00:00
schweikh
d3367c5f5d Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,
especially in troff files.
2003-01-01 18:49:04 +00:00
ru
041d1287e8 Uniformly refer to a file system as "file system".
Approved by:	re
2002-12-12 17:26:04 +00:00
peter
a51c9b6627 Initiate deorbit burn for the i386-only a.out related support. Moves are
under way to move the remnants of the a.out toolchain to ports.  As the
comment in src/Makefile said, this stuff is deprecated and one should not
expect this to remain beyond 4.0-REL.  It has already lasted WAY beyond
that.

Notable exceptions:
gcc - I have not touched the a.out generation stuff there.
ldd/ldconfig - still have some code to interface with a.out rtld.
old as/ld/etc - I have not removed these yet, pending their move to ports.
some includes - necessary for ldd/ldconfig for now.

Tested on: i386 (extensively), alpha
2002-09-17 01:49:00 +00:00
alfred
a7dd0de84a Assume __STDC__, remove non-__STDC__ code. 2002-05-28 18:57:20 +00:00
dwmalone
33776f88dc Change brk's prototype from char *brk(const char *) to int brk(const void *)
and sbrk's prototype from char *sbrk(int) to void *sbrk(intptr_t).

This makes us more consistant with NetBSD and standards which include
these functions. Bruce pointed out that ptrdiff_t would probably
have been better than intptr_t, but this doesn't match other
implimentations.

Also remove local declarations of sbrk and unnecessary casting.

PR:		32296
Tested by:	Harti Brandt <brandt@fokus.gmd.de>
MFC after:	1 month
2002-01-24 12:11:31 +00:00
ru
ad71f55b36 Fixed some of style bugs. 2001-09-12 10:04:42 +00:00
sheldonh
9bfb9eedcd Use STD{ERR,IN,OUT}_FILENO instead of their numeric values. The
definitions are more readable, and it's possible that they're
more portable to pathalogical platforms.

Submitted by:   David Hill <david@phobia.ms>
2001-07-26 11:02:39 +00:00
ru
5e14a6862e mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 10:49:54 +00:00
ru
45d92a4319 - Backout botched attempt to intoduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:22:12 +00:00
ru
eb847b5e24 mdoc(7) police: simplify construct. 2001-02-14 09:56:37 +00:00
ru
8a6f8b5fe4 mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:38:02 +00:00
ru
04d60c1164 Prepare for mdoc(7)NG. 2001-01-16 09:15:57 +00:00
ru
5fe0f042a4 Prepare for mdoc(7)NG. 2000-12-27 14:15:06 +00:00
obrien
c2ee1dcc02 Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.
2000-12-09 09:35:55 +00:00
jdp
fb6b385092 Move the man pages for the a.out dynamic linker into the 1aout
section.  I created rtld.1aout earlier with a repository copy.

This clears the way for the ELF dynamic linker man page, which I
will commit next.
2000-01-29 03:13:49 +00:00
phantom
270eb4b19a .Nm += "rtld"
apropos(1) now knows about rtld(1) manpage.
1999-09-28 05:35:59 +00:00
peter
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
jdp
65a1e124be Fix a bug in the handling of minor version numbers. Formerly, the
rtld would accept the first shared library it found with the right
major version number, even if the minor version number was too low.
If a different version of the shared library with an adequate minor
version number appeared later in the search path, it would not be
found.

Now the rtld searches all locations first looking for a library
with a minor version that is high enough.  Only if such a library
is not found will it fall back to accepting a minor version number
that is too low.  As before, a warning comes out in that case.

This solves some problems encountered when building an older world
on a -current system.
1998-11-07 01:59:39 +00:00
jdp
2b7c06f6c8 Don't recognize a file as an a.out shared library unless it has at
least 2 version numbers.  This fixes the bug where the dynamic
linker would try to load an ELF shared library if it found one.

Note, this change also fixes the same thing in "ld", because the
code is shared.

For "ld" there is still a problem with ".a" libraries, which cannot
be distinguished by name.  I haven't decided what, if anything, to
do about that.
1998-09-05 20:28:48 +00:00
jb
3e545efab0 Chaneg MACHINE to MACHINE_ARCH to support MACHINE=pc98. 1998-09-05 08:31:10 +00:00
mckay
bb26cf57dc Pass me the pointy hat with the extra sequins. Just a moment, while I get
it to sit right...

The __error() hack gave out the wrong address.  It returned the address of
errno in ld.so instead of the address of errno in the main program.  Oops.

The hack is now correct, just in time to be obsoleted by elf.
1998-08-22 15:51:41 +00:00
mckay
446517db81 Since I got no objections to this patch, and no one has offered any
alternative, I present .. ta! da! .. the __error() hack.

This patch to the a.out dynamic loader provides old a.out binaries
with __error() if they are linked with an older libc that lacks it,
but are also linked against a library that needs it.

There is a smaller, tricker hack that takes advantage of the fact
that ld.so has __error() too, courtesy of the new libc, but this
hack is the straightforward version.
1998-06-21 14:22:29 +00:00
brian
e484ff1d7f Search for libraries in dlopen() when the specified path
contains no ``/''s.
Elf already searches it seems.
Mostly submitted by: Mike Smith <mike@smith.net.au>
1998-06-07 03:53:08 +00:00
peter
afda9795b1 Seperate the Paul Kranenburg a.out rtld stuff into a stand-alone area away
from the gpl ld code.  This is part 2 of something that I began in 1996.
A repository copy has happened behind cvs's back.
1998-06-01 13:00:32 +00:00
sos
bc60c8025e ELF preparation step 2:
Move a.out libraries to /usr/lib/aout to make space for ELF libs.
Make rtld usr /usr/lib/aout as default library path.
Make ldconfig reject /usr/lib as an a.out library path.
Fix various Makefiles for LIBDIR!=/usr/lib breakage.

This will after a make world & reboot give a system that no
longer uses /usr/lib/*, infact one could remove all the old
libraries there, they are not used anymore.

We are getting close to an ELF make world, but I'll let this
all settle for a week or two...
1998-05-26 20:12:56 +00:00
jdp
d5b09c81ec Implement dladdr. 1998-02-06 16:46:46 +00:00
jdp
6301239883 Make emacs work again. This is a workaround for the fact that the
emacs a.out file, self-generated by emacs's "unexec" function in
"unexsunos4.c", is invalid.  In particular, its "_end" symbol has
the wrong value.  The dynamic linker was using the value of that
symbol to initialize its sbrk break level.

The workaround is to peek at the executable's a.out header in
memory, and calculate what "_end" should be based on the segment
sizes.

I will work out a fix for emacs and send it to the FSF.  This
dynamic linker workaround is still worthwhile, if only to avoid
forcing all emacs users to build a new version.

Note: xemacs gives a bogus warning at startup, for related reasons.
The warning is harmless and can safely be ignored.  I will send a
patch to the xemacs maintainers to get rid of it, and meanwhile
add a patch file to our port.
1997-12-05 02:06:37 +00:00
jdp
e61aa81fab Get rid of the dynamic linker's internal malloc package, and arrange
things so that it uses the same malloc as is used by the program
being executed.  This has several advantages, the big one being
that you can now debug core dumps from dynamically linked programs
and get useful information out of them.  Until now, that didn't
work.  The internal malloc package placed the tables describing
the loaded shared libraries in a mapped region of high memory that
was not written to core files.  Thus the debugger had no way of
determining what was loaded where in memory.  Now that the dynamic
linker uses the application's malloc package (normally, but not
necessarily, the system malloc), its tables end up in the regular
heap area where they will be included in core dumps.  The debugger
now works very well indeed, thank you very much.

Also ...

Bring the program a little closer to conformance with style(9).
There is still a long way to go.

Add minimal const correctness changes to get rid of compiler warnings
caused by the recent const changes in <dlfcn.h> and <link.h>.

Improve performance by eliminating redundant calculations of symbols'
hash values.
1997-11-29 03:32:48 +00:00
phk
d8ac409160 Many places in the code NULL is used in integer context, where
plain 0 should be used.  This happens to work because we #define
NULL to 0, but is stylistically wrong and can cause problems
for people trying to port bits of code to other environments.

PR:		2752
Submitted by:	Arne Henrik Juul <arnej@imf.unit.no>
1997-09-18 14:08:40 +00:00
wosch
fde8a8ec46 spelling corrections.
PR: docs/4450
Submitted by: josh@quick.net
1997-09-13 16:01:53 +00:00
nate
33a318e832 - In dlsym(), if the lookup fails using the original symbol, prepend an
underscore and try looking it up again.  This is a non-issue if we
  switch to ELF.

Reviewed by:	sef, jdp
1997-08-19 23:33:45 +00:00
jdp
2ed649b29b Implement dlsym(RTLD_NEXT, symbol). 1997-08-02 04:56:44 +00:00
max
233b3efa62 Typo fix.
PR:		3693
Submitted by:	Kazuo Horikawa <k-horik@yk.rim.or.jp>
1997-05-27 13:46:40 +00:00
dfr
b0fdd73677 Changes to support the kernel linker:
Add a -Bforcedynamic option which generates a dynamic object even
	if no shared libraries were given in the link.

	Make RRS in text section warnings conditional on "-assert pure-text"
	so that I can link non-PIC kernel modules without tons of link
	errors.  Changes to bsd.lib.mk to follow.

	Fix a couple of bugs exposed by the fact that the kernel is not
	linked at zero.

Reviewed by:	jdp
1997-05-13 10:23:47 +00:00
jdp
08224caae1 Fix a bug that caused the relocs for linker set members in shared
libraries to come out as 1-byte relocations instead of 4-byte
relocations.

Submitted by:	Doug Rabson <dfr@nlsystems.com>
1997-04-30 05:18:08 +00:00
bde
ea4c076a10 Fixed `make depend' and related bogons. LDFLAGS was used for
ld-specific flags.  LDFLAGS is really for ld-related flags for cc,
not for ld, and some flags, e.g., -Bshareable, mean completely
different things to cc and ld.  Having the wrong things in LDFLAGS
also broke the standard ${PROG} target.  This was kludged around
by using a special rule that depended on LDFLAGS being bogus.
Fixing `make depend' broke the special rule but fixed the standard
rule (except in the DESTDIR case, which was handled more strictly
here than elsewhere).
1997-04-16 11:31:32 +00:00
peter
245ba20d12 Revert $FreeBSD$ to $Id$ 1997-02-22 15:48:31 +00:00
jdp
d7912405bd Use xmalloc instead of malloc in two places, so that out-of-memory
conditions will be detected.

Submitted by:	Philippe Charnier <charnier@xp11.frmug.org>
1997-01-24 00:07:03 +00:00
jdp
282d267078 Pay attention to the environment variable "LD_IGNORE_MISSING_OBJECTS".
If it is set to a nonempty string, then simply skip any missing
shared libraries.  This came up in a discussion long ago as a
potentially useful feature at sysinstall time.  For example, an
X11 utility could be used without the X libraries being present,
provided the utility had a mode in which no X functions were actually
called.
1997-01-17 20:22:18 +00:00
jdp
dcd41564c5 If a library is found in the hints file, but the library doesn't exist,
ignore the hint.

This is a straightforward fix, and it should go into 2.2 after a burn-in
period of a few days.

Noticed by:	bde
1997-01-14 17:53:55 +00:00
jkh
808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
wosch
71f5160702 Sort cross references. 1997-01-13 00:25:51 +00:00
jdp
75efa0b561 Use the RTLD_NOW symbol, now that it is defined in <dlfcn.h>. 1997-01-12 19:59:26 +00:00
jdp
222e4ec967 Correct typos and spelling errors. 1997-01-12 00:19:14 +00:00