d900731978
Resolve dlsym(3) and friends directly so that dlsym(RTLD_NEXT,...) works.
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Previously dlsym resolved to the version in crt0.o or libc which would
mean that the caller's shared object couldn't be determined correctly
using __builtin_return_address(0).
Mainly from FreeBSD, but adapted by me. Benefits of this solutions are:
- backward comptibility maintained
- existing broken binaries are fixed with a new ld.elf_so
- __mainprog_obj can be removed from crt0.o
- we do the same thing as FreeBSD
Fixes PR 22067.
OKed by Jason and Christos.
2003-08-12 09:18:38 +00:00
8e6ab8837d
Move UCB-licensed code from 4-clause to 3-clause licence.
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Patches provided by Joel Baker in PR 22284, verified by myself.
2003-08-07 09:46:37 +00:00
59b0f10729
KNF
2003-08-05 19:41:53 +00:00
99410184e7
netbsd.org->NetBSD.org
2003-07-26 19:24:24 +00:00
88bb1d9b3b
include <string.h> or <stdlib.h> for all prototypes
2003-07-26 15:04:38 +00:00
5f573ab68d
ANSIfy and de-__P().
2003-07-24 10:12:25 +00:00
ddc9322f3b
Support immediate binding on arm.
2003-07-21 15:34:35 +00:00
b2695e5a1f
arm and sh5 also have bogus DT_TEXTRELs. sh5 was already covered so just
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update the comment.
2003-07-21 15:17:55 +00:00
619dee76f6
Correct the in_plt parameter of a couple of _rtld_find_symdef calls.
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The mips_reloc.c case is a no-op as _rtld_symlook_obj ignores in_plt for
MIPS.
OK'ed by Charles.
2003-07-17 13:56:32 +00:00
d4cfd1c666
s/_rltd_obj_rtld/_rtld_objself/ in #ifdef notyet code.
2003-07-15 07:39:55 +00:00
9192c2eed4
Whitespace
2003-07-15 07:38:29 +00:00
fae2567c9b
Removed unused function.
2003-07-05 20:48:39 +00:00
0e65101f60
Add function prototype declarations.
2003-07-05 18:18:51 +00:00
a4878b4349
Bugfix: Don't pick addend both from reloc and contents at the same time.
2003-07-02 15:29:34 +00:00
6aeeb40d4a
Updated to work with current rtld code.
2003-06-30 00:50:46 +00:00
5404577abf
SH also has a bogus DT_TEXTREL, it seems.
2003-06-30 00:49:25 +00:00
a9f5b3f871
KNF- blank lines before code at start of functions.
2003-06-05 10:41:32 +00:00
683092605c
Add RTLD_FIRST, RTLD_NEXT, RTLD_DEFAULT, from FreeBSD
2003-05-30 15:43:33 +00:00
458dbd70ac
Fix alignment problem in debug output.
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Happens only under RTLD_DEBUG_RELOC.
2003-05-23 20:13:50 +00:00
f57f7ac072
Back out previous change for now -- it needs more work.
2003-04-24 16:55:29 +00:00
8826c5e475
Attempt to give dlsym() the same symbol-searching semantics as _rtld_bind().
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Tested in a handful of cases.
Reviewed by: a dead silence
2003-04-23 17:40:25 +00:00
0b8f02edad
Handle unaligned relocations, and RELATIVE relocs with non-zero addends.
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This gets binaries linked against libstdc++ working (FSVO "working").
2003-04-21 11:54:46 +00:00
e6b13790fa
SH5 needs __HAVE_FUNCTION_DESCRIPTORS defined in order for ld.elf_so
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to resolve SHmedia function pointers correctly.
2003-03-26 14:46:32 +00:00
d174ad2eab
Add support for shared libraries/dynamically linked binaries on sh5.
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With the latest SuperH toolchain, NetBSD/evbsh5 can now
run with a fully dynamic userland (modulo a few remaining
gremlins affecting a couple of binaries).
2003-03-25 13:11:53 +00:00
28d2056e12
make it compile in /usr/src/rescue directory.
2003-03-06 17:01:27 +00:00
7b28c56025
Align psections to their specified alignment (if possible). Use
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mmap(2) MAP_ALIGNED.
2003-03-06 07:34:56 +00:00
7cbba1750d
Shorten rtld_start() by 2 instructions or 8 bytes, and make it not use GOT
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entries.
2003-03-02 22:56:14 +00:00
d2fd5f837d
Shorten rtld_start() slightly -- there's a base-relative _DYNAMIC pointer at
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the beginning of the GOT, so we don't need an extra one here. Also, remove a
bogus comment -- we do in fact have to do fixups, because there are pointers in
ld.elf_so's data segment that need to be relocated.
2003-03-02 22:03:40 +00:00
33131cb294
Update copyright.
2003-03-01 15:14:59 +00:00
861ff9be73
we have constants for all this crap. don't hard-code things.
2003-02-28 23:05:24 +00:00
9939b38056
Eliminate GOT usage in rtld_start() on this platform, too.
2003-02-28 22:37:35 +00:00
527c1efca7
Use the "__NetBSD_Version__" constant rather than the "NetBSD" constant
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in the NetBSD version note. The old "NetBSD" constant was stuck in stone,
and thus didn't really convey any useful information.
2003-02-28 18:20:33 +00:00
9cb7d16b11
Similar to other rela platforms, do not use any GOT entries (other than the
...
first entry, which is a special case) in rtld_start, because they could be
all 0s. Instead we use the difference between the real _DYNAMIC address
(which we can determine on 68k with a "lea (%pc,_DYNAMIC),..." and the
base-relative one (at the beginning of the GOT) to figure out the relocation
offset.
Not needed for binutils-current, but I might as well fix it now.
2003-02-28 07:06:16 +00:00
eea1001a73
Adjust for the fact that the GOT is all 0s in new binutils -- do the trick of
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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
6a4d4259ae
Do not add ${LIBC_PIC} to DPADD if MKPICINSTALL is "no".
2003-02-26 06:03:40 +00:00
990562bfef
.Nm does not need a dummy argument ("") before punctuation or
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for correct formatting of the SYNOPSIS any longer.
2003-02-25 10:34:36 +00:00
c42fd7b479
Revert previous change.
2003-02-21 01:12:56 +00:00
c8ba6436ed
If fstat info was passed, and from it it can be seen that the file size
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is smaller than an ELF header, don't even bother to try to look at it.
Avoids coredumps with zero-sized files.
2003-02-06 12:38:17 +00:00
0655a07988
Fix bug where only 2/3 of the PLT was being synched with the icache.
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PLT entries are 12 bytes. Add a #define for that and replace the
explicit values with the PLT_ENTRY_SIZE. This bug can cause random
SIGILL signals to happen.
2003-01-11 01:33:56 +00:00
8707cd2a36
Gracefully exit when invoked directly. Use of assert() here caused a segfault.
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Address PR#11785.
2002-12-14 15:37:57 +00:00
9e11602ee9
Remove comment which is not true any more. alpha and i386 support
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R_xxx_COPY relocations.
2002-12-14 09:13:00 +00:00
fd1f5e8f1b
A bit speedup: in _rtld_load_object(), save the number of calls to
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strcmp() by performing path name length comparison first. In the test
with Mozilla, the number was reduced to 1068 from 7182 (yes, we saved
6114 strcmp()!).
2002-12-05 04:56:56 +00:00
044aeabaad
Bintuils-current initializes the GOT entries to 0 (instead of the
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base-relative offsets that were placed there previously), so we
must use a different mechanism to compute our reloc base.
Patch from Charles Hannum.
2002-12-04 01:19:37 +00:00
be3692c5a7
Back out the last two changes. They were misguided, and the code worked
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correctly before.
2002-11-25 19:49:25 +00:00
100e201ec6
Replace return -1 in rtld_bind with _rtld_die() call.
2002-11-24 18:19:23 +00:00
d93db1cfce
Implement self-relocation as is required now.
2002-11-24 18:16:45 +00:00
5505734fa9
For the debug case, print relocbase as well at the start of _rtld().
2002-11-24 18:13:30 +00:00
2cc0cde8f5
Now _rtld_relocate_objects() returns with error as soon as any of
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subsequent calls in it fails.
Spotted by wiz and enami.
2002-11-22 04:39:37 +00:00
b5ffe4c33c
Simplify code a bit.
2002-11-21 19:09:56 +00:00
15f633fbd3
In _rtld_load_library(), ensure that the old _rtld_error state (a message from
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a previous error, or NULL) is preserved if the search eventually succeeds.
Addresses the problem pointed out in PR pkg/19024.
2002-11-14 21:07:46 +00:00
skrll