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44 Commits

Author SHA1 Message Date
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
tv 3ecc6b044e Some local changes accidentally made it into the last commit; back that 
part out (noticed by mycroft; thanks!)
 1998-07-15 11:26:28 +00:00
tv 77a275d732 Change ld.so default behavior to RTLD_LOCAL, and make RTLD_LOCAL into a 
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
mhitch c01fadd882 Don't forget to update _rtld_objtail when _rtld_dlclose() removes the 
current tail entry.
 1998-06-16 03:24:13 +00:00
mhitch 082edecc20 Add support for mips. 1998-03-25 04:12:32 +00:00
mrg 896c1cce87 WARNS?=1 1997-10-08 08:55:35 +00:00
cgd 7631ac43fd make sure that ld.elf_so's path is in the data segment 1997-04-15 07:15:46 +00:00
cgd fbf6ff628e put in two identifying notes, which new binutils snapshots will turn 
into PT_NOTE sections so they can be examined by execve() to figure
out whether this is a native binary, what emulation it's to be run under,
etc.
 1997-03-21 05:39:42 +00:00
cgd 0b2b5475a4 nclude dlfcn.h, and pull RLTD_LAZY in from there. Assume that RTLD_NOW is 
RLTD_LAZY + 1 (for now), if it's not defined.  RTLD_NOW should be defined
in dlfcn.h, since some code (e.g. X11) wants it and assumes that it has
the value currently used by our RTLD_LAZY.
 1996-12-18 22:27:29 +00:00
cgd 41fe218b25 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.
 1996-12-16 20:37:55 +00:00