Commit Graph

59 Commits

Author SHA1 Message Date
mycroft
bf04efbfda ld.elf_so has no textrels on arm, i386 or vax -- and shouldn't on any platform,
but that's beside the point.
2002-09-12 19:43:03 +00:00
mycroft
2b2534febf Add a `relocbase' argument to _rtld() and _rtld_init(), which is passed in
from the glue code in _rtld_start().  This is used to set objself.relocbase,
rather than assuming that it's the same as objself.mapbase (or 0 on MIPS).
Now -- with a bug fix to the kernel -- ld.elf_so can be linked at any VMA.
2002-09-12 17:45:41 +00:00
mycroft
fa0b5c37b2 This is a gratuitous null commit to force rtld.o to be rebuilt. 2002-09-11 20:48:21 +00:00
mycroft
6f0fac5efa Pass down an additional flag to _rtld_relocate_nonplt_objects() which
indicates whether we're relocating ld.elf_so itself.  Use this in some places
rather than hackish tests on `dodebug'.  (The Alpha and HPPA `dodebug' tests
were actually noops, because RTLD_RELOCATE_SELF is not set, and therefore
dodebug is always true.)
2002-09-06 15:17:53 +00:00
junyoung
3ffe941c3a Remove typedef which was never used. Meaningless comment as well. 2002-09-06 13:27:48 +00:00
mycroft
c59ffb0cc4 Remove all of the mark' code. This is responsible for the undefined PLT
symbol' errors, probably because the increment gets interrupted occasionally by
a signal.  In general, _rtld_bind() should not modify ANY internal state.
2002-09-05 21:57:09 +00:00
christos
23c8380404 save 4 system calls by using AT_{R,E}{U,G}ID. 2002-08-26 21:09:55 +00:00
soren
642c31b4a3 Remove extraneous \n's in {err,warn}{,x}. 2002-08-09 10:01:53 +00:00
fredette
e4526bd9fa Add support for dynamic linking on HP PA-RISC. 2002-07-10 15:12:33 +00:00
lukem
06de426449 SIMPLEQ rototill:
- implement SIMPLEQ_REMOVE(head, elm, type, field).  whilst it's O(n),
  this mirrors the functionality of SLIST_REMOVE() (the other
  singly-linked list type) and FreeBSD's STAILQ_REMOVE()
- remove the unnecessary elm arg from SIMPLEQ_REMOVE_HEAD().
  this mirrors the functionality of SLIST_REMOVE_HEAD() (the other
  singly-linked list type) and FreeBSD's STAILQ_REMOVE_HEAD()
- remove notes about SIMPLEQ not supporting arbitrary element removal
- use SIMPLEQ_FOREACH() instead of home-grown for loops
- use SIMPLEQ_EMPTY() appropriately
- use SIMPLEQ_*() instead of accessing sqh_first,sqh_last,sqe_next directly
- reorder manual page; be consistent about how the types are listed
- other minor cleanups
2002-06-01 23:50:52 +00:00
wiz
bf840df2cd __STDC__ is always defined on NetBSD. 2002-05-26 00:02:06 +00:00
thorpej
67b1884571 Add support for dynamic linking on the SuperH. From Marcus Comstedt,
with some bug fixes (namely, don't forget to consider the addend when
processing relocations) from me.
2002-02-03 23:34:42 +00:00
thorpej
6d9f5579ab Garbage-collect the OLD_GOT stuff. 2001-12-14 21:25:22 +00:00
thorpej
c7e9af3ef0 binutils-current ld emits DT_TEXTREL into _DYNAMIC on arm-elf. Handle
this.
2001-12-14 21:21:27 +00:00
christos
f8ad0818e5 Unloading objects, can cause other objects whose reference count becomes
0 to be unloaded. Make sure that when we unload those objects we remove
any references to them from the globals list... This fixes SIGSEGV with
apache+mod_php+mysql.

XXX: This fix should be pulled up.

christos
2001-05-10 20:19:25 +00:00
pk
38fd9b8f99 Avoid the use of a `switch(){}' statement before _rtld_init() is called.
`switch()' code may be translated using a jump table approach which causes
it to reference the equivalent of a global variable, something that must
be avoided before _rtld_init() has run.
2001-02-03 13:25:00 +00:00
mycroft
0581ae5bad Make ldd(1) build again. 2000-11-10 23:53:04 +00:00
mycroft
2d376bed2b When dlopen()ing with RTLD_GLOBAL, also make dependent libraries RTLD_GLOBAL. 2000-11-10 21:31:30 +00:00
scottb
b5de616825 copy the real object filename to the rtld object path so that the
Dl_info structure can be properly filled by dladdr().
2000-08-28 04:15:54 +00:00
mycroft
94581370f5 The ELF ABI declares that argc must fill an `argument slot'. Make it so.
For __sparc_v9__ only, do a hack to make executables work temporarily before
and after the kernel is switched.
2000-07-26 15:40:07 +00:00
mycroft
43cfeb27a9 Catch up with type changes. Also:
* Apply DT_PLTRELSZ to (one of) pltrel or pltrela *after* we've finished
  parsing the headers, so we know which one.
* Fix sparc64 bogons.  (It works now!)
2000-07-26 02:07:34 +00:00
thorpej
a8248dcc27 Make it build on non-VARPSZ again. 2000-07-19 15:01:16 +00:00
eeh
55c1b7fb0d Fix some issues with SPARC V9 ELF binaries. 2000-07-18 22:33:55 +00:00
matt
824a084272 More VAX ELF changes. 2000-07-17 02:55:52 +00:00
matt
cc5d6b2a4d Initialize ld.elf_so's textsize. 2000-07-14 21:59:58 +00:00
christos
baeb94e0b1 Also set __mainprog_obj so .ini sections can call dlopen() 2000-06-16 19:51:05 +00:00
jdolecek
06d16ede1e slighly move the assert() added in last commit, so that it's
actually useful
2000-06-03 06:51:57 +00:00
jdolecek
2a05365bbb _rtld_unref_dag(): needed->obj might be null if the unreffed object has
some unsatisfied references (most often when compiled without necessary
	-Wl,-R), so check for that instead of causing null-dereference;
	this way the code has a chance to cleanup after itself and report
	the error to caller

Thanks to Jason Thorpe for helping fix this!
2000-06-02 22:52:28 +00:00
erh
a497b0d8ab Cause ld.elf_so to find the symbols for __progname and environ and set them. If we wait until crt0 gets around to doing it it's too late for any library init functions. 2000-04-15 05:41:46 +00:00
christos
46d52e1ec5 re-indent sanely _rtld_dlsym() [no functional change] 2000-04-15 05:27:49 +00:00
kleink
65b8f3b2eb Change _rtld_dlclose() to unload the object via _rtld_unload_object() rather
than by itself.  Besides being duplicated code the open-coded version
also did not take care of cleaning up after the object's DAG(!).
Fixes PR bin/8905.
2000-02-07 19:02:49 +00:00
christos
ea816c78b2 Enable parsing and mapping of hardware dependent libraries in ld.so.conf
To be documented in the man page.
1999-12-13 09:09:34 +00:00
thorpej
3bf43967ff Name consistencty nit: curmark -> _rtld_curmark 1999-11-10 18:48:19 +00:00
thorpej
70e2953dac Some slight cosmetic cleanup. 1999-11-10 18:34:49 +00:00
mycroft
305c949781 Changes from msaitoh to fix local/global symbol confusion, and to fix weak
symbol support -- updated by me for elf.h changes.
1999-11-07 00:21:12 +00:00
kleink
522cbf0248 Update to match new SVR4-style definition names in <sys/exec_elf.h>. 1999-10-25 13:55:06 +00:00
christos
fb292d7f02 enable /etc/ld.so.conf processing
[reviewed by thorpej]
1999-08-19 23:42:15 +00:00
kleink
1cc052ce00 Rearrange the shared library search path precedences to LD_LIBRARY_PATH >
runpath > built-in default; this is the behaviour of the SVR4 shared loader,
and gives users the opportunity to override the runpath.  (Addresses a report
on current-users by John Kohl.)
1999-08-01 19:47:07 +00:00
thorpej
4d256c199f When dlopen()'ing a shared object without an absolute pathname, search
for it in the rpath of the main program as well as the path specified
in LD_LIBRARY_PATH.
1999-07-22 00:18:19 +00:00
kleink
571aef82d9 Don't include the ident .note assembly when linting. 1999-06-15 15:54:28 +00:00
kleink
8b74e6d78e Implement LD_PRELOAD support. 1999-05-31 14:48:16 +00:00
ws
bf9c27b80b Add code to use the kernel provided page size.
Enable this on the powerpc only for now.
1999-04-18 19:40:06 +00:00
kleink
3b03384405 Update an i386-ismed comment. 1999-03-08 10:44:25 +00:00
christos
ec2edc19fd Make this compile without -DRTLD_LOADER and fix printf format problems on
the alpha.
1999-03-03 21:18:00 +00:00
christos
26475619ed KNF 1999-03-01 16:40:07 +00:00
pk
a32bf0c1c2 Just initialize the stack-based temporary `rtld self' object. 1999-02-27 10:35:16 +00:00
christos
84cb65780e Cleanup global variable access so rtld can be self relocating. Also KNF
reloc.c and move md sparc parts to arch/sparc/mdreloc.c
Now we don't need to load at address 0 on the i386 and the mips should be
trivial to fix.
1999-02-24 18:31:00 +00:00
christos
d72f81978d Add i386 bits 1999-01-10 18:18:56 +00:00
castor
dc6b4c42a3 Restore missing variable declaration with -DRTLD_DEBUG 1999-01-09 18:10:19 +00:00
ross
b899771419 Rewrite AuxInfo handling to track AuxID changes in sys/exec_elf.h. 1998-10-07 02:53:27 +00:00