eb66267d81
Allow rpaths in setuid binaries, noticed by tron. This is already done
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for ELF systems; make it uniform for a.out.
1999-04-23 19:29:30 +00:00
ff6c8ce557
Add ld.so hacks for arm32, and reenable ld.aout_so on arm32. As is well
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known, XXX this needs a real fix.
1999-02-27 03:34:05 +00:00
0810c73a0e
Move the ldentry initialization up so that dl*() from init sections
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works.
1999-01-28 23:58:49 +00:00
d2db1ca59a
* Add header file containing definitions shared among all a.out
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linker related utilities.
* Adjust makefile to new location in `src/libexec'
* Have rtld.c use the new shlib.h and ld.h headers.
1998-12-17 11:34:10 +00:00
b53366509b
Deal with compiler warnings: format strings, prototypes, variable initialization.
1998-12-15 21:35:17 +00:00
42ba16dee7
Make the BINDER debug messages a bit more useful (print index and jmpslot
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address too).
1998-10-23 00:44:44 +00:00
4f1a79cfbd
Back out change to md_make_gotreloc which added 4 arguement of got_t *.
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Add argument to md_fix_jmpslot indicating whether this the first (i.e
tranfer) jmpslot or not. Add better support for VAX (the VAX can support
pure text code; let ld that advantage of it). Checking in verified and
working versions of rtld VAX support routines.
1998-10-19 03:09:31 +00:00
e6b129450c
Exit early from alloc_link_map() if we have no object; only relevant
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when tracing. (PR#6140)
1998-09-12 15:03:19 +00:00
0a97faa040
Assign my copyrights to TNF.
1998-09-05 13:08:38 +00:00
93f8d753f8
Small changes to make debugging a little easier.
1998-08-13 07:34:05 +00:00
41a070136b
When DEBUG, log init and fini calls.
1998-08-06 00:03:28 +00:00
77a275d732
Change ld.so default behavior to RTLD_LOCAL, and make RTLD_LOCAL into a
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new flag bit. Keep RTLD_GLOBAL as an actual flag bit so it won't be
re-used, or may be used for something later. Mask the dlopen() mode bits
in ld.elf_so so a comparison against RTLD_NOW works. (RTLD_{LOCAL,GLOBAL}
needs to be implemented for ld.elf_so.)
1998-07-14 22:18:36 +00:00
76bc8071eb
Clear the error indicator after retrieval (xref. dlerror(3)).
1998-05-30 18:28:31 +00:00
294ed94908
Optimize symbol/string table access slightly by precomputing their
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locations at load time. These values don't change once the object is loaded.
1998-05-19 12:15:38 +00:00
d123bc84d4
Implement `dladdr()': find nearest symbol given an address.
1998-05-12 21:22:28 +00:00
ab8a4c5234
Allow a non-RTLD_GLOBAL object to refer to symbols in itself.
1998-03-26 23:33:12 +00:00
d47d43b956
Use file size from fstat(2) to map the hints file, instead of fiddling
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with incremental mmap()'s. Squashes a bug which caused only the first
page of the hints file to unmapped.
1998-03-18 23:21:46 +00:00
5ea8bb6d05
Implement RTLD_GLOBAL dlopen(3) flag.
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Rename internal flags to avoid <dlfcn.h> name space collisions.
1998-03-15 23:10:21 +00:00
b5f4c3ad5e
Check for short hints file (noticed by Chuck Silvers).
1998-03-15 21:24:27 +00:00
28ad88290d
Remove spurious extra newline.
1998-03-03 00:36:24 +00:00
4462053ab3
Fill in missing (default) mmap(2) flags.
1998-02-20 09:27:18 +00:00
9084f293a7
Print a warning message if we detect that a "copy symbol" has changed
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size in a shared library. Also, always use our expected size to copy
the item in, on the assumption that doing so generally minimizes the
damage (maybe it's better to just bail out?).
1998-02-17 23:07:33 +00:00
10cc9f3b70
RCS Id police
1998-01-05 22:00:34 +00:00
72023de51f
Do not free dlopen'ed map structures twice.
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Plug memory leak when opening the same object mor than once.
1997-06-30 22:10:06 +00:00
7a27a9dd43
Fix typo in free_link_map(); noticed by Mike Grupenhoff.
1997-06-30 20:49:40 +00:00
c682966345
Patch from Chris Demetriou to unmap an object on last dlclose(), which
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had not be implemented. It would cause an "adress space leak" and, if
the same object would opened multiple time, unwanted relocations.
Re: Comment from Chris:
"The a.out ld.so has some problems with dlclose. It doesn't properly
unmap objects which are dlclosed. That's a known problem (though a
serious one for programs which dlopen then dlclose lots of objects,
because it causes address space exhaustion), but it has a
previously-unknown side-effect.
If a single object is dlopened, then dlclosed, then dlopened _again_,
the relocations will be processed again. That causes obvious
problems."
1997-06-26 20:52:06 +00:00
ff90cf758b
Keep track of `dlsym()' symbol lookup scope differently. There's (currently)
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only one special case: a NULL argument to dlopen(); return a special
token for that case.
1997-05-03 08:00:02 +00:00
372fe2ff92
Catch up with const changes to dlopen() and dlsym() prototypes in
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<dlfcn.h>. Tested on i386 and hp300 for crt0.o and ld.so, verified
other references by inspection.
1997-01-03 22:37:58 +00:00
49dc4d2fe7
Deal with weak symbols when looking up in shared libraries.
1996-12-21 21:53:16 +00:00
c51687391d
Actually set the RTLD_DL flag in dlopen'ed shared objects, per PR#2791.
1996-10-06 19:03:32 +00:00
7d468e4a0c
Iff __m68k__, use a `slight hack' to determine the magic of the executable
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we're doing a dynamic link for, and change the page size used for offset
and size calculations if necessary. Allows the same ld.so to be used with
mixed m68k4k and m68k8k executables and libraries.
Thanks a million to Gordon Ross for the help in making this work!
1996-09-10 22:17:51 +00:00
55d51fbb95
Relax checking of minor version number in `findhint()'. Also use the
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directories from the hints (v.2) file for directory traversing.
This should take care of PR#1146.
1996-01-14 00:35:17 +00:00
ccc1c895ef
Deal with v.2 hint files (hint srch dirs not yet used).
1996-01-09 00:02:28 +00:00
2bb60e32ec
Make dlopen() search for libraries if given a name of the form
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`lib<name>.so[.xx[.yy]]' (per Erik M. Theisen; PR#1763; patch from PR
used in simplified form).
1995-12-28 17:57:32 +00:00
d04fcadcc2
Fix typo.
1995-10-09 09:24:59 +00:00
9d43c41208
New style RCS IDs.
1995-10-09 00:09:39 +00:00
b74b1d6456
Allow customized trace output, so ldd(1) can be more conveniently used
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as a filter.
Rearrange cascading stuff: remove two-level limit.
1995-10-08 23:43:28 +00:00
d4fe561742
Interface version 4:
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implement dlexit() (per Doug Rabson)
get actual rtld path from crt0
pass ld_entry back to crt0 in a better place
1995-09-23 22:46:24 +00:00
1a9159c7ba
Check for zero sized BSS to avoid a big no-op syscall (per Mike Hibler).
1995-08-31 22:07:25 +00:00
45359beaf4
Initialise after malloc (fixes PR#1149).
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Also, correct comparison when looking in `prefered' paths.
1995-06-20 23:07:03 +00:00
d680ed6b95
#include <dlfcn.h>
1995-06-05 00:08:38 +00:00
fdd7092874
Cache two more environment variable values.
1995-06-04 23:21:35 +00:00
ad760ce3d6
Implement compiled-in library search paths: any `-L' argument encountered
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while `dynamic link-mode' is on, is recorded in the executable. The
run-time linker will search these paths after $LD_LIBRARY_PATH but
before the default set and those currently in the hints file.
The feature is disabled whenever for set[ug]id programs.
1995-06-04 21:56:22 +00:00
28dba22b40
Fix bogosities in cascade stuff.
1995-04-01 20:56:55 +00:00
b6340cabe2
Burn LD_RUN_PATH; I didn't read the SVR5 man-pages carefully enough.
1995-03-06 22:59:10 +00:00
64edf8f86f
Code from Matthew Green to do DL cascading "in the first degree".
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Two `fprintf(stderr, ..)' => `warnx(..)'.
1995-03-06 20:51:24 +00:00
e46ed32748
Bummer! Undo mmap() changes in rev. 1.26; they royally screw up the
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kernel's pmap address preference mechanism.
1994-12-19 12:21:21 +00:00
e2025017e0
Handle "/dev/zero" stuff more globally.
1994-12-18 16:05:49 +00:00
b8937d605d
Re-arrange mmap() calls, per Charles' suggestion.
1994-12-18 15:38:55 +00:00
524e00b29b
Ensure contiguous chunks for all of an object's address space (text+data+bss).
1994-12-07 20:30:53 +00:00
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