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69 Commits

Author SHA1 Message Date
nakayama dbbd50a95f Add missing comma. 2011-03-31 12:47:01 +00:00
martin 9f905ee41c Add support for TLS relocations 2011-03-30 09:22:29 +00:00
joerg cb1cd7e860 Add basic locking to ld.elf_so. 2011-03-25 18:07:04 +00:00
joerg f40b256f09 Reduce header pollution for mdreloc.c. Make Obj_Entry argument of 
_rtld_relocate_nonplt_objects non-const in preparation for TLS support.
 2010-08-06 16:33:17 +00:00
christos 12bd4dbd45 PR/39240: Satoshi Suetake: Don't fail when attempting to resolve weak symbols 
when we are doing immediate binding, leave them alone and they will be dealt
with later during lazy binding. From skrll@
 2010-01-13 20:17:21 +00:00
mrg 750ad3d59d simplify the logic for compat ld.elf_so and move it here. we now can 
find the libc objdir for multiple compat ld.elf_so's, too.
 2009-12-13 09:31:47 +00:00
mrg f7f0bc40ae rename LD32DIR to MLIBDIR. 2009-12-13 08:25:20 +00:00
lukem b4fba76b41 Fix const issues (cast const pointers to "const uint8_t *" instead of "caddr_t") 
NOTE: change based on ../i386/mdreloc.c 1.27
XXX: not compile tested
 2009-03-16 02:46:47 +00:00
mrg 9108f12f6b move the defines for RTLD_ARCH_SUBDIR into a sub-sub-makefile so we can 
grab these values via reach-over more easily.
 2009-01-06 02:15:06 +00:00
mrg 8679e33545 if LD32DIR is defined: 
- look in src/compat/lib/libc for libc_pic.
- define RTLD_ARCH_SUBDIR to "i386" or "sparc" for amd64 and sparc64
  builds, respectively
if RTLD_ARCH_SUBDIR is defined, add this path before
RTLD_DEFAULT_LIBRARY_PATH in the default search path.
 2008-10-26 07:11:54 +00:00
matt 38bdc8954f Refactor common code to _rtld_relocate_plt_object to i386 and arm so they 
act like the other versions.
In _rtld_bind, if the result is 0, call _rtld_die.
Initialize _rtld_sym_zero.st_value to -_rtld_objself.maprelocbase.  Now when
the symbol is resolved, st_value + maprelocbase will equal 0 and the above
check in _rtld_bind will fire and a call to NULL will be avoided.
 2008-07-24 04:39:25 +00:00
martin ce099b4099 Remove clause 3 and 4 from TNF licenses 2008-04-28 20:22:51 +00:00
mrg 82f7733046 in _rtld_bind() initialise result to appease GCC4. 2006-05-20 07:09:44 +00:00
perry ae6ae2c362 Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete. 2005-12-24 20:56:41 +00:00
skrll 680596d08e Add __RCSID. 2005-08-20 19:01:16 +00:00
skrll 9f486044a0 KNF 2005-08-15 10:52:42 +00:00
lukem 3ed9ffcae1 Explicitly prefix ld(1) options in LDFLAGS with "-Wl," rather than 
using the ${LDFLAGS:@F@-Wl,$F@} make substitution because that breaks
if LDFLAGS is already set.
 2005-06-04 16:17:17 +00:00
martin 0a1196da3e Add LD_BIND_NOW support for sparc and remove some relocation types that 
are not supposed to happen in 32bit code.
From Nick Hudson.
 2005-01-09 14:58:15 +00:00
martin 995d8a8e4b Add support for unaligned relocs on sparc, from PR 26858. 
Should also fix PR 25901 and PR 18296.
 2005-01-05 09:18:53 +00:00
skrll d93f13855a Move common LDFLAGS into Makefile from arch/*/Makefile.inc 2004-02-21 15:56:03 +00:00
skrll 151426159b Whitespace. 2004-02-20 20:58:24 +00:00
skrll 5f573ab68d ANSIfy and de-__P(). 2003-07-24 10:12:25 +00:00
mycroft 33131cb294 Update copyright. 2003-03-01 15:14:59 +00:00
mycroft eea1001a73 Adjust for the fact that the GOT is all 0s in new binutils -- do the trick of 
disassembling a call to _DYNAMIC to determine its real address, and using the
first entry of the GOT as its base-relative address.

It's evil, but it works.
 2003-02-27 05:39:42 +00:00
mycroft 1c495430dd Remove the `self' args to _rtld_relocate_objects() and 
_rtld_relocate_nonplt_objects().
 2002-09-26 20:42:10 +00:00
mycroft 723a5f8a50 Remove a meaningless bit from a rdbg(). 2002-09-26 02:51:27 +00:00
mycroft f1c792d648 Make the stack frame 96 bytes, like GCC does. 2002-09-26 02:05:41 +00:00
mycroft bde7a965da Tweak the save instruction in the PLT stub rather than adding an instruction 
to the binder entry stub...
 2002-09-26 01:59:16 +00:00
mycroft d314d82b47 Allocate space for the argument space area in both _rtld_start() and 
_rtld_bind_start().  Not needed normally, but if we compile ld.elf_so with
-g, it blows up without this.
 2002-09-26 01:54:52 +00:00
mycroft 6bff9ffc3d For consistency, use Elf_Word* to point to code, not Elf_Addr*. 2002-09-25 22:33:54 +00:00
mycroft 9e31b44846 There is no need to save and restore a second register window in the binder 
stub.
 2002-09-25 14:38:51 +00:00
mycroft 729925dfb9 Push the _rtld_bind() interface into MD code -- it's just a trivial wrapper 
anyway.
 2002-09-25 07:27:49 +00:00
mycroft 9d8c69b929 Remove vestiges of VARPSZ. 2002-09-24 12:12:07 +00:00
mycroft a3b892d178 Nuke -DRTLD_RELOCATE_SELF and `dodebug' from orbit. 2002-09-12 22:56:28 +00:00
mycroft 547bc13b97 _rtld_bind_start() is not used in MI code, so declare it in the MD code. 2002-09-12 20:20:58 +00:00
mycroft ebf50cdfbc Update comments. 2002-09-12 17:18:37 +00:00
mycroft 5ee0e5e1c4 Pass the calculated relocation offset down to _rtld(). 2002-09-12 17:07:25 +00:00
mycroft e46eb805f1 This ld script is no longer necessary. 2002-09-11 19:46:04 +00:00
mycroft aa1330ce71 Do the _rtld_relocate_nonplt_self() thing for SPARC. 2002-09-11 19:11:05 +00:00
mycroft d22977bb61 Indent branch delay instructions. 2002-09-09 19:01:52 +00:00
mycroft c127ff08fb Nuke RTLD_RELOCATE_SELF for SPARC. 2002-09-09 18:10:20 +00:00
mycroft 492895a9f9 Expand the comment about the R_TYPE(RELATIVE) special-case, as it's not quite 
obvious from the code.  Also, just do it all the time, as an optimization.
 2002-09-06 15:51:23 +00:00
mycroft 3eee01c5b9 Make the reloc tables const. 2002-09-06 15:32:56 +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
mycroft b97e4047b7 Re-poison a lot of consts, now that the mark shite is gone. 2002-09-06 03:12:04 +00:00
mycroft a04012e731 Split _rtld_relocate_plt_object() into two MD functions: 
* _rtld_relocate_plt_lazy() fixes up all the relocs pointing to the PLT.  (On
  most platforms it just does a simple base-relative fixup; on SPARC it does
  nothing.)
* _rtld_relocate_plt_object() does immediate binding for a PLT entry.
The basic gist is that this saves a bit of time on SPARC (where the iteration
through the pltrela table was gratuitous), and a little less time on all other
platforms.  A whole lot of #ifdef'ed crap is moved out of reloc.c, too.

NOT tested on: hppa sh x86_64
 2002-09-06 03:05:35 +00:00
mycroft 5f016a11ef Repair a slight biff I made earlier -- do not exit the loop in 
_rtld_relocate_nonplt_objects() early.
 2002-09-06 02:01:39 +00:00
mycroft ac191986f3 Partially fix up some debug printf()s that don't need to use defobj. 2002-09-05 21:31:30 +00:00
mycroft bdc2ac1520 A few things: 
* Pass a symbol number to _rtld_find_symdef(), not a r_info.
* Don't try to do a symbol lookup when we find an unsupported relocation;
  instead get the symbol name from the referencing object's strtab.
* Add preliminary support for `-z combreloc'-style startup optimization on
  i386, `#ifdef COMBRELOC'.
 2002-09-05 21:21:06 +00:00
mycroft 74444a2ddb Rename _rtld_relocate_nonplt_object() to _rtld_relocate_nonplt_objects(), 
and push the outer loop into it.  This actually shaves a couple % off startup
time at least on PCs.
 2002-09-05 20:08:14 +00:00