Commit Graph

1850 Commits

Author SHA1 Message Date
mycroft 26043b23b0 Make room for the argument save area in _rtld_start(). The PLT stub already
made room from _rtld_bind_start(), but add a comment explaining the instruction
it uses.
2002-09-26 02:14:10 +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 0079455251 Add a comment explaining some of the magick. 2002-09-25 22:29:12 +00:00
mycroft f6db390b5a Fix a bug that caused PLT entries to effectively not be patched.
Also, fix more bugs in the large-PLT case -- my test program works now.
2002-09-25 22:25:11 +00:00
mycroft 2997d64776 Make this work with PLTs larger than 8192 entries (64KB). Not tested
exhaustively, but it works in some simple cases.
2002-09-25 21:11:18 +00:00
mycroft d4e6f3ff08 Swap registers %o0 and %o1 in the binder stub to say one instruction.
Fix an obvious bug in the 64-bit PLT fixup: the SLLX was by 12 bits, when it
should be 32.

Fix what *appear* to be two bugs in the >32768 PLT entry stub:
* One division was wrong (/14 rather than /24).
* We need to subtract 1048576 (to make the offset relative to the beginning of
  the upper section), not add it.
This path is still untested, and buggy.
2002-09-25 16:35:08 +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 afb1082706 _rtld_bind_start_0_stub() is not actually used. 2002-09-25 14:36:37 +00:00
mycroft 028dd5150a Push a multiple from _rtld_bind_start_[01]() to _rtld_bind(). 2002-09-25 14:35:39 +00:00
mycroft 23b2275ee8 Partly fix this port -- still needs a self-reloc function. 2002-09-25 08:37:57 +00:00
mycroft a9c999925c We don't need to save quite as many registers in the stub. 2002-09-25 08:00:26 +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 305b0ffce5 #if defined -> #ifdef 2002-09-25 06:43:46 +00:00
itojun d80101c91c Allocate vis_user on the stack instead of using malloc(). This
way we don't have to worry about malloc() failure.  Also closes
a memory leak since vis_user was never free()d.  Lack of malloc()
checking pointed out by Peter Werner.
from openbsd
2002-09-25 04:57:59 +00:00
mycroft 896795d8a3 Minor cleanup, for clarity. 2002-09-25 03:57:15 +00:00
mycroft a3c903f7cb Resolve the GOT before doing relocations. Then, when doing relocations, for
symbols in the global part of the symbol table, use the updated GOT entry
rather than doing a lookup.  (This provides the same effect as `-z combreloc'
on other platforms -- at most one lookup is done per symbol.)

Unfortunately, it is necessary to turn off lazy binding on MIPS.  As the
comment says:

                         * XXX DANGER WILL ROBINSON!
                         * You might think this is stupid, as it intentionally
                         * defeats lazy binding -- and you'd be right.
                         * Unfortunately, for lazy binding to work right, we
                         * need to a way to force the GOT slots used for
                         * function pointers to be resolved immediately.  This
                         * is supposed to be done automatically by the linker,
                         * by not outputting a PLT slot and setting st_value
                         * to 0, but GNU ld does not do so reliably.
2002-09-25 03:52:06 +00:00
mycroft 646628d7fa DOH! Adjust all the stack slots in _rtld_bind_start() so that the saved $a0
is not in _rtld_bind_mips()'s $a3 argument save area.
2002-09-24 21:57:20 +00:00
mycroft fb3dfbb81b Add a comment about the function pointer nonsense. 2002-09-24 20:27:07 +00:00
mycroft 216a20fcc4 Put back the `in_plt' nonsense for now.
It turns out there is some deep-seated wackiness WRT function pointer
comparisons...
2002-09-24 20:23:11 +00:00
mycroft 9d1d2c30c8 Reverse the previous patch, but make the dbg()s more informative. 2002-09-24 18:28:42 +00:00
mycroft 8510028476 Touch up a little more -- some of the dbg()s never actually printed anything. 2002-09-24 18:25:54 +00:00
mycroft 1ad20cb78f Previous change was done wrong. 2002-09-24 18:23:14 +00:00
junyoung d0e76e42b6 G/c dbg()'s. 2002-09-24 18:03:46 +00:00
junyoung 5afbf1cbce Make sure that dbg() is disabled if LD_DEBUG is not defined. Now
debugging is easier with RTLD_DEBUG_RELOC.
2002-09-24 17:51:11 +00:00
mycroft 64d3d6215a Ignore JMP_SLOT relocs when doing non-PLT relocations. The relalim trimming
hack doesn't always work, because ld(1) sometimes puts the sections in the
wrong order.
2002-09-24 15:04:48 +00:00
mycroft bddb0d021d Similarly, remove support for short arguments. 2002-09-24 14:09:43 +00:00
mycroft fa344ccc4b Remove quad support. We don't need it, and it wastes a lot of space. (It
pulls in {,u}{div,mod}di3() and qdivrem().)
2002-09-24 14:05:33 +00:00
mycroft 56288dc0e5 %ld -> %p 2002-09-24 13:59:31 +00:00
mycroft fa5df29420 Include xassert() only if DEBUG, like the real assert().
Also, xassert() calls abort(), so there's no need to do it in all of the
callers.
2002-09-24 13:06:07 +00:00
mycroft 7f44855294 Remove the SVR4_LIBDIR madness. 2002-09-24 12:52:20 +00:00
mycroft 3c16ffb1dd Woops, unmap the first page in the `win' case, too.
Tidy up a bit.
2002-09-24 12:44:58 +00:00
mycroft 72b0e512c3 Change the comment about l_offs. 2002-09-24 12:18:32 +00:00
mycroft 9d8c69b929 Remove vestiges of VARPSZ. 2002-09-24 12:12:07 +00:00
junyoung 175c20cbcf Nuke PAGESIZE. 2002-09-24 09:45:59 +00:00
junyoung 4b4a707c66 Use _rtld_pagesz instead of PAGESIZE. 2002-09-24 09:35:13 +00:00
junyoung d190613fbb space -> tab. 2002-09-24 09:26:43 +00:00
junyoung 93f2d9023a Don't need to use union any longer. 2002-09-24 09:22:51 +00:00
junyoung 272e959468 Remove '\n' at the end of dbg strings. 2002-09-24 08:56:30 +00:00
junyoung 61e1361da6 END_SYM is no longer used. 2002-09-24 06:43:14 +00:00
mycroft 97aed9957d -I${.CURDIR} is done at the top-level, so there's no need to do it here. 2002-09-24 01:59:44 +00:00
mycroft b59c269424 Nuke reference to RTLD_RELOCATE_SELF. 2002-09-24 01:58:44 +00:00
mycroft c3ece2a45f Use/require AT_PAGESZ on all platforms. (The kernel has exported it for ~3
years now.)  Use _rtld_pagesz instead of getpagesize() to determine the page
size in our local malloc().  Saves a system call.

Also, since we're now relocated early, we don't need to be careful to avoid
globals, so most of the VARPSZ hacks are eliminated.
2002-09-24 01:24:44 +00:00
mycroft d1351c627c Um, a little bit of sanity here:
l_addr is always supposed to be obj->relocbase -- or so says the GDB code that
uses it.  So, set it to this on all platforms.  It already was on VAX
explicitly, and on everything else except MIPS implicitly (because
mapbase==relocbase for all existing shlibs).  For some silly/stupid reason, a
new field was created that the MIPS GDB currently uses.
Another MD #ifdef bites it.
2002-09-24 00:33:39 +00:00
mycroft f1184d192e Very minor cleanup of the previous. 2002-09-24 00:02:46 +00:00
mycroft 86103e2f0e Several small changes that shave 7-8% off the simple-exec-loop test:
* Rename _rtld_find_library() to _rtld_load_library().  It now calls
  _rtld_load_object() if necessary to actually load the object, rather
  than having the caller do it.  To do this, it also takes the `mode'
  argument that gets passed to _rtld_load_object().

* On a related note, remove _rtld_check_library(), and instead call
  _rtld_load_object() to instead try actually loading the object.  We
  save two extra namei's and a bunch of redundant work (almost
  literally the same code) this way.

* In _rtld_map_object(), mmap(2) the first page read-only, rather than
  read(2)ing it.

* In _rtld_symlook_obj(), compare the *second* character of the symbol
  name before calling strcmp().  (This first character is too
  frequently `_', and turns out to not be helpful, in libc.)

* Also in _rtld_symlook_obj(), remove the bogus STT_FUNC special case
  -- this also allows removing the `in_plt' argument to
  _rtld_symlook_list() and _rtld_symlook_obj().

Also:

* In _rtld_obj_from_addr(), rather than trying to look up `_end' in
  the each object, instead use obj->mapsize as the upper bound.
2002-09-23 23:56:46 +00:00
mycroft aae6c28cf9 null commit 2002-09-23 12:44:34 +00:00
itojun a9fc5f306a poll.h, not sys/poll.h 2002-09-23 03:32:34 +00:00
mycroft c3a2d8b7ba Add combreloc code here too. 2002-09-21 17:51:44 +00:00
junyoung 930998f892 Print the name of dynamic linker actually loaded. 2002-09-21 05:24:17 +00:00
mycroft 9a36a8340f Use the argument to stilloob() for the poll... 2002-09-20 19:13:24 +00:00
mycroft e62e5a8b1a Remove dead code. 2002-09-20 19:11:17 +00:00
mycroft 49ac051d58 Remove a small piece of dead code. 2002-09-20 19:07:34 +00:00
junyoung 48910dcfc1 Cosmetic changes (long lines). 2002-09-20 03:39:22 +00:00
itojun 89b1e287f7 find_user() in process.c does an unbounded copy into a destination
buffer that is smaller in size than the source buffer.

also, there is no guarantee that any of the string components of
the request packet are null terminated.

in some cases, not all elements of the response buffer are
explicitly set. specifically pad and addr. a talk client can spy to
see which host is talking to which host by sending out regular
packets, to which talkd responds without clearing the addr element.

from xs@kittenz.org
2002-09-19 14:39:51 +00:00
junyoung 18139870a5 Cosmetic changes. 2002-09-19 14:05:37 +00:00
christos 6d0f752a65 don't core dump setting progname if argv[0] == NULL. From xs@kittenz.org 2002-09-19 13:59:46 +00:00
lukem e3b1a0e70b use NETBSDSRCDIR as appropriate 2002-09-19 03:17:50 +00:00
mycroft 720a68f0ca select() -> poll() 2002-09-18 20:58:56 +00:00
mycroft 51581bcb01 select() -> poll() 2002-09-18 20:37:11 +00:00
mycroft 015ea63be5 Fix an error message. 2002-09-18 20:20:28 +00:00
mycroft 315144beb5 select() -> poll() 2002-09-18 20:17:55 +00:00
mycroft 5580adb284 select() -> poll() and nanosleep() 2002-09-18 20:04:51 +00:00
junyoung a5390eb121 _rtld_setup_pltgot() belongs to reloc.c. 2002-09-18 07:35:40 +00:00
lukem bafe5da620 use bsd.own.mk instead of the (obvious typo of) bsd.obj.mk 2002-09-18 06:24:33 +00:00
lukem 99fe9d3e76 minor makefile delint 2002-09-18 06:17:38 +00:00
junyoung 9754fa4d8e Make immediate binding work again by actually implementing
_rtld_relocate_plt_objects(). Note that this is for i386 only;
any efforts to make it work on other platforms are left to
those who are using them...
2002-09-17 07:29:46 +00:00
thorpej 7e6d181789 No PC24 relocs will ever be unaligned. Pointed out by mycroft. 2002-09-15 01:08:04 +00:00
thorpej 672853f217 It is possible for reloc entries to point to unaligned locations; handle
this.
2002-09-15 00:52:08 +00:00
thorpej a2130a3a09 It is possible for reloc entries to point to unaligned locations; handle
this.
2002-09-14 23:53:21 +00:00
thorpej b01748bb26 It is possible for reloc entries to point to unaligned locations; handle
this.
2002-09-14 23:21:13 +00:00
mycroft a95d62a38e In _rtld_bind_mips(), if the symbol is undefined, die. 2002-09-13 20:32:24 +00:00
mycroft 712b838f43 Kill the extra newline in assert messages. 2002-09-13 19:50:00 +00:00
mycroft cc2b1e9844 Add an explanatory comment. 2002-09-13 19:27:19 +00:00
mycroft e3db70741f Turn DEBUG back on by default. It doesn't take much space. 2002-09-13 18:28:58 +00:00
mycroft 60330f4a69 The sense of the SHN_ABS test has always been reversed. Fortunately nobody
ever tried to reference stuff like _DYNAMIC_LINK and _gp_disp in C code...
2002-09-13 17:36:00 +00:00
mycroft 8f7fa0cfde Put back the lazy binding. For some bizarre reason, the linker occasionally
does not create a PLT entry for a symbol, so we test st_value!=0 to see
whether we can do a PLT fixup.
2002-09-13 17:07:12 +00:00
mycroft a8dd8878cf Er, turn off lazy binding for the moment. It doesn't seem to be fully working. 2002-09-13 16:54:14 +00:00
mycroft c1cf8538ec Simplify the GOT relocation code somewhat. 2002-09-13 16:31:28 +00:00
mycroft e8b2fe1d2a Actually do lazy binding on this platform. 2002-09-13 16:03:20 +00:00
thorpej 7c96dd1581 Rename man/config.{c,h} to man/manconf.{c,h}, so we don't have to
worry about problems including "config.h" when building as a host
tool.
2002-09-13 15:56:37 +00:00
mycroft 89a39bb54e The textrel special case is only needed for MIPS (due to a bug in BFD). 2002-09-13 15:27:30 +00:00
mycroft 7a962f974a Kill the sparc64 argc conversion hack. 2002-09-13 14:23:07 +00:00
mycroft a18c524897 Figure out obj->pltrel(a) after the dynamic section is parsed, so the relative
order of DT_PLTREL and DT_JMPREL is irrelevant.  Removes the need for yet
another weird #ifdef.
Also, be slightly more careful with the rel(a)lim trimming.
2002-09-13 13:28:43 +00:00
mycroft c74fdd7069 Use the addend on GLOB_DAT relocs (same as ABS32). 2002-09-13 05:45:46 +00:00
mycroft c65330320a Do not use the implicit addend on REFQUAD relocs (same as GLOB_DAT). 2002-09-13 05:45:13 +00:00
mycroft daf8118731 Remove an old comment. 2002-09-13 04:09:49 +00:00
mycroft 2f59687514 Almost all of the items in here are done. 2002-09-13 04:05:00 +00:00
mycroft 777a2b8bb0 If we match a symbol name, but it's undefined, do not continue searching the
hash chain.
2002-09-13 03:40:40 +00:00
mycroft bbe45a0623 Remove a dumb #ifdef -- if VARPSZ is not defined on sparc, the build will
bomb anyway.
2002-09-13 03:22:08 +00:00
mycroft 4de09f873b Nuke an unneeded hack for the Alpha. 2002-09-13 03:17:21 +00:00
mycroft 807a6ace45 Nuke two frivolous assert()s. 2002-09-13 03:12:40 +00:00
mycroft 4b55da479c _rtld_bind() is not used on MIPS. Should probably move it to MD code. 2002-09-13 03:09:38 +00:00
itojun a05a73b5b6 revert previous. wtmp{,x} entries need not be \0-terminated, so
strncpy is more proper.
2002-09-13 02:58:54 +00:00
mycroft f64e457cee Remove one more `dodebug' argument. 2002-09-12 23:11:37 +00:00
mycroft a3b892d178 Nuke -DRTLD_RELOCATE_SELF and `dodebug' from orbit. 2002-09-12 22:56:28 +00:00
mycroft f13bdd9850 Add some consts. 2002-09-12 21:06:38 +00:00
mycroft 5ad776fbd2 Move another declaration that doesn't belong in MI source. 2002-09-12 20:27:34 +00:00
mycroft de4565ee93 Prototype different functions. 2002-09-12 20:24:03 +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 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 6530c89689 Slight tweak. 2002-09-12 18:43:17 +00:00
mycroft 326f270bfb The GOT is Elf_Addr[], not Elf_Word[]... 2002-09-12 18:36:43 +00:00
mycroft 6f0bda739f This ld script is now unnecessary. 2002-09-12 18:33:39 +00:00
mycroft 1165ce6f38 Clean up a little. 2002-09-12 18:28:53 +00:00
mycroft 2346aaad04 Move GOT relocation code from _rtld_setup_pltgot() to
_rtld_relocate_nonplt_objects().  Add GOT self-relocation in
_rtld_relocate_nonplt_self().
MIPS ld.elf_so can now relocate itself.
2002-09-12 18:21:18 +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 d04429c6a7 Figure out the relocation offset and pass it to _rtld(). 2002-09-12 17:43:30 +00:00
mycroft ebf50cdfbc Update comments. 2002-09-12 17:18:37 +00:00
mycroft ac81e3266b Snapshot of work to make MIPS ld.elf_so relocatable. 2002-09-12 17:08:32 +00:00
mycroft 5ee0e5e1c4 Pass the calculated relocation offset down to _rtld(). 2002-09-12 17:07:25 +00:00
wiz c4de963fb8 Bump date for -8. 2002-09-12 10:06:51 +00:00
wiz d5d10ab7d3 Sort options. 2002-09-12 09:34:24 +00:00
itojun 57afbee27d use strl*, not strn*. 2002-09-12 08:55:31 +00:00
lukem 38a05c7450 Use LOGIN_NAME_MAX instead of `10' for the size of the curname[] buffer.
Allows /etc/ftpchroot to work correctly for usernames > 9 characters.

Noted by Max Khon in the freebsd-stable mailing list, via Thomas Vogt in
private email.
2002-09-12 06:40:43 +00:00
kim 968e6be5e6 Replace -i with -8, which enables new 8-bit pass-through on the client. 2002-09-12 01:40:54 +00:00
bjh21 3cc5ae01bc Correct somewhere where, in rev 1.3, two new sentences had been dropped
into the middle of an existing sentence, and put them after it instead.
2002-09-11 23:11:41 +00:00
mycroft 1da1ca49f2 Do the _rtld_relocate_nonplt_self() thing here, and nuke the ld script. 2002-09-11 22:28:32 +00:00
mycroft fb69b8bec4 Implement _rtld_relocate_nonplt_self() here. 2002-09-11 21:14:08 +00:00
mycroft a57ae642a3 We don't use _GLOBAL_OFFSET_TABLE_ any more, so don't .global it. 2002-09-11 20:56:09 +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 f1725abea5 Add a _rtld_relocate_nonplt_self() here too. 2002-09-11 20:45:52 +00:00
mycroft 403e42f619 Do self-relocation similar to sparc. 2002-09-11 19:46:40 +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 82148aec74 The ld script is no longer necessary. 2002-09-11 18:20:47 +00:00
mycroft d603bed369 Implement _rtld_relocate_nonplt_self() on Alpha. 2002-09-11 18:18:37 +00:00
mycroft 735f9f38c0 Split the `self' case out of _rtld_relocate_nonplt_objects, into a new function
_rtld_relocate_nonplt_self(), which is called from _rtld_start.
Now we're completely relocated before main() is called.
We also no longer need _GOT_END_, so junk the ld script.

This code assumes that ld.elf_so only contains RELATIVE relocs, but that's
supposed to be the case for -Bsymbolic anyway.
2002-09-11 17:23:23 +00:00
junyoung b240241362 Add $NetBSD$. 2002-09-11 14:19:30 +00:00
joda a55a6f7fef now gone 2002-09-10 22:44:28 +00:00
joda 7d3aba796f don't build kfd; there are security issues with heimdal 0.4e, and we
don't actually need it
2002-09-10 22:17:04 +00:00
mycroft db439ed878 Only one linker script is needed. 2002-09-10 14:19:18 +00:00
itojun 6c581a525d tabify 2002-09-10 04:06:26 +00:00
kim 5d2f386289 Add a switch for easy enabling of single-byte 8-bit output.
This is somewhat of a hack, but I find it better than having
to run env(1) from inetd(8), or changing the environment for
inetd(8) itself (and thus all daemons started by it).
2002-09-10 03:29:01 +00:00
mycroft 289d4ac1a5 Remove unneeded cruft from _rtld_start. 2002-09-10 02:52:33 +00:00
mycroft d048e19122 Shorten the startup sequence by a few instructions. 2002-09-10 02:24:51 +00:00
mycroft 9f0e145106 Nuke RTLD_RELOCATE_SELF on ARM. 2002-09-09 19:28:36 +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 89520a5f6e Sync with current binutils. 2002-09-09 14:41:25 +00:00
mycroft ae0c8dfbc2 Get rid of RTLD_RELOCATE_SELF on i386.
* Add a ld.so.script that exports _GOT_END_.
* Prebind the GOT in _rtld_start.
* Skip over GOT relocs in _rtld_relocate_nonplt_objects().
This makes debugging work better at least.
2002-09-09 14:08:07 +00:00
wiz 221d594f18 Mention that -DDEBUG compilation is needed to get LD_DEBUG support.
Noted by Julio Merino in misc/18231.
2002-09-08 23:44:09 +00:00
thorpej 6a37882ec7 Fix a serious performance problem for large programs on the Alpha.
Large programs need multiple GOTs.  The lazy binding stub in the PLT
can be reached from any of these GOTs, but the dynamic linker only
has enough information to fix up the first GOT entry.  Thus, calls
through the other GOTs went through the time-consuming lazy binding
process on every call.

This fix rewrites the PLT entries themselves to bypass the lazy binding
for those GOT entries that the dynamic linker can't fixup.

Fix from FreeBSD.

Note that now that we patch up the PLT, we need to put back the "imb"
that was removed from the binder exit path.
2002-09-08 02:48:28 +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
junyoung 3ffe941c3a Remove typedef which was never used. Meaningless comment as well. 2002-09-06 13:27:48 +00:00
mycroft 0df8d18100 Introduce a new flag, `isdynamic', which is used to remember whether the
executable was of type ET_DYN.  Use this instead of `mainprog' to determine
whether we need to do base-relative fixups of the PLT.  (This allows loading
non-relocatable objects, should we desire to do that at some point...)
2002-09-06 13:20:29 +00:00
mycroft 69b9a24021 More const poisoning. Now the entire _rtld_bind() path useds a const Obj_Entry. 2002-09-06 12:00:40 +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 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
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 1fa950d044 Fix one indentation error. 2002-09-05 20:12:43 +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
mycroft 00c3ad1f56 Split _rtld_relocate_nonplt_object() into separate MD files. 2002-09-05 18:25:45 +00:00
mycroft b4a8cd2dbf Split MIPS relocation goo into mips_reloc.c. 2002-09-05 17:58:02 +00:00
mycroft ae16986458 Simplify a couple of tests to !__mips__. 2002-09-05 17:06:11 +00:00
mycroft 9e3442dc47 Combine the code that skips COPY relocs on most platforms (other than MIPS).
Remove the code that skips JMP_SLOT relocs (thus making ld.elf_so bomb if it
hits one in the non-PLT relocation table).
2002-09-05 17:01:13 +00:00
mycroft cf2d41da85 If REL(A)SZ extends into .rel(a).plt, trim rel(a)lim. This is actually due to
what is arguably a bug in BFD on some platforms (at least PPC and SPARC), but
I can't fix old binaries.
2002-09-05 16:58:16 +00:00
junyoung 515622e6db Remove unused arguments of _rtld_find_symdef(). 2002-09-05 16:33:57 +00:00
mycroft 1ea7e8253b Remove support for PowerPC static relocations, which are not present in shared
objects, and in any case are implemented WRONG.  (They're symbol-relative, not
base-relative.)
2002-09-05 15:47:52 +00:00
mycroft f4cbd3d6e2 Remove unused prototypes (including one for a non-existant function!). 2002-09-05 15:45:54 +00:00
mycroft 2635aa544a Make _rtld_setup_pltgot() a consistent interface on all platforms. 2002-09-05 15:38:22 +00:00
mycroft 1e06edb63b There is no need to do an imb after each call to the binder, because we only
patch the GOT, not the PLT.  However, do an imb when setting up the PLT thunk,
just in case.
2002-09-04 19:13:00 +00:00
junyoung 937e5f4f83 Previous commit broke the normal build; this should really fix the
problem, toolchain/18020. From Frederick Bruckman <fredb@immanent.net>.
2002-09-04 16:57:47 +00:00
junyoung 9cc71f17e2 Fix a problem that 'make obj' doesn't work within tools/makewhatis. 2002-09-04 06:39:58 +00:00
mycroft 1b6aaa02a2 Turn off DEBUG by default, and compile with -O3. (Tested on Alpha, ARM,
x86 and PowerPC.)
2002-08-31 18:18:14 +00:00
lukem 3b473ec283 xerrx() needs to output a trailing newline as well 2002-08-27 10:37:33 +00:00
christos 23c8380404 save 4 system calls by using AT_{R,E}{U,G}ID. 2002-08-26 21:09:55 +00:00
itojun b46a0ef5ae use strlcpy. minor style fixes 2002-08-22 07:23:27 +00:00
christos d5935a17be enable utmpx support. this doesn't work correctly for chrooted ftpd's, but
I am leaving it to luke to fix.
2002-08-22 00:09:38 +00:00
christos 7c266e1884 support utmpx 2002-08-20 14:01:49 +00:00
christos 9d7f515ba2 add some more ifdefs, so that we don't define variables we don't use. 2002-08-20 13:58:22 +00:00
christos 7d62d2a173 utmpx support 2002-08-20 13:56:50 +00:00
christos c0b21fbbf7 Disable UTMPX support for now, because ftpd might chroot and we need
to keep files open.
2002-08-20 13:55:58 +00:00
christos 4b476b1883 utmpx support 2002-08-20 13:51:09 +00:00
christos 6c99012e39 PR/17999: FUKAUMI Naoki: Support wtmpx entries. 2002-08-20 13:12:00 +00:00
lukem f794aa60bb Use ${NETBSDSRCDIR}/some/path instead of ${.CURDIR}/../../some/path 2002-08-19 13:54:34 +00:00
itojun 2abe377059 defend against malicious line in ut_line, which could cause unwanted
writes to anything under /dev.  revoke setuid/gid privs earlier.
From: xs@kittenz.org
2002-08-16 20:21:48 +00:00
abs d88a5fe209 If the peer closes the connection in ttloop()
syslog(LOG_ERR, "ttloop:  peer died: %m");
is a little console spammingly excessive. Switch to LOG_INFO.
2002-08-12 09:19:00 +00:00
thorpej 9c104401d1 Build for "armeb". 2002-08-10 01:59:33 +00:00
soren 642c31b4a3 Remove extraneous \n's in {err,warn}{,x}. 2002-08-09 10:01:53 +00:00
soren 236006d5dc Remove extraneous \n's in {err,warn}{,x} that used to be printfs. 2002-08-08 13:24:12 +00:00
jmcneill 00a0bebf72 Include string.h so this application compiles. 2002-08-05 15:36:51 +00:00
christos f660736fac It is pointless to limit the login name for utmp's purposes here. 2002-08-01 18:52:06 +00:00
christos 5ba367f315 err, fix arg to warn. 2002-07-29 00:36:44 +00:00
christos 5e254dfcd4 jeez, this program included almost everything in /usr/include! 2002-07-29 00:35:49 +00:00
christos aa3ec0641b Add utmp_update 2002-07-28 22:38:50 +00:00
grant 6742cb1812 sweep of errx/warnx, remove unnecessary trailing \n 2002-07-20 08:36:17 +00:00
abs c2fcad8607 If /etc/ld.so.conf contains an invalid sysctl name any dynamically
executable that uses the library on that line has the rather cryptic
"sysctl" printed when it starts executing.

Switch to (_PATH_LD_HINTS": unknown sysctl for %s", name);

Discovered after someone copied /etc from an i386 to a sparc64 box.
2002-07-18 14:46:11 +00:00
wiz 7b9b4ac6f7 'environment', not 'enviroment' 2002-07-11 10:53:19 +00:00
fredette e4526bd9fa Add support for dynamic linking on HP PA-RISC. 2002-07-10 15:12:33 +00:00
itojun 373383a4ab typo in message. PR 17528 2002-07-08 23:01:57 +00:00
lukem a4449882c6 - Change lexer to support numbers > 2^31-1 (stored in an off_t), and allow
RESTart to use the larger numbers.
  Fix from Maxim Konovalov <maxim@freebsd.org>
- Update version
- Minor whitespace changes
2002-07-02 02:18:01 +00:00
tv bfa5cd6608 We really, actually, positively want to apply the ftpd.conf "passive"
option to all possible *PSV commands.  Some ftp servers are simply not
capable of passive connections, hence the option....
2002-06-30 04:54:43 +00:00