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589 Commits

Author SHA1 Message Date
mycroft
ac7236712a ELF32_ST_TYPE -> ELF_ST_TYPE 2004-12-17 10:53:27 +00:00
skrll
38fb01be3a Apply fixes from Charles: 
- Fix how _rtld_relocate_nonplt_self deals with REL32 relocations.

- Change the assert so that it is correct for binutils 2.14 and 2.15.

There are still problems with the libraries generated with binutils 2.15,
but at least ld.elf_so doesn't crash.
 2004-12-15 10:26:29 +00:00
skrll
2728318e3c Add __RCSIDs. 
OK'd by mycroft.
 2004-10-22 05:39:56 +00:00
uwe
255de8f40e Preserve r2 in _rtld_bind_start - in r2 functions that return 
aggregate types are passed the address of the memory area to store the
returned result to.

Fixes PR port-sh3/26949.
 2004-09-14 21:34:01 +00:00
rearnsha
3fa803b523 Check the type of symbols; if it's a Thumb function, then set the Thumb 
bit in the relocated value (JUMP_SLOT, ABS32 & GLOB_DAT).
 2004-08-21 11:14:07 +00:00
rearnsha
c3e148044f Use BX if available. 2004-08-21 11:12:03 +00:00
thorpej
2a63e04007 - Change the strong dlfcn names in libc to ___name, and make the __name 
versions used by others in libc weak, so that we have:
	name: weak
	__name: weak
	___name: strong
- Add __name strong aliases of the dlfcn names in ld.elf_so, so that we have:
	name: strong
	__name: strong

This allows ld.elf_so to self-resolve both the name and __name variants
of the dlfcn functions, the former being required for dlfcn support in
applications, the latter being required for dlfcn support in libc.

Fixes the problem described in:

    http://mail-index.netbsd.org/tech-toolchain/2004/07/17/0000.html

Reviewed by Nick.
 2004-07-18 17:26:19 +00:00
petrov
1ee4832b70 Don't print relocated content (in DEBUG mode) as it can cause 
misaligned access. It needs to be done differently if needed at all.
Fix PR port-sparc64/20907.
 2004-07-17 05:03:33 +00:00
cube
d1b3d841ee Make ld.elf_so use the new sysctl API. That allows the user to give any 
sysctl variable name in /etc/ld.so.conf.  It also makes the ld.elf_so
binary slightly smaller (at least on i386), and has no impact on
performance.

Fixes PR 26100.
 2004-07-05 11:50:07 +00:00
skrll
701ae47cdf Fix the dynamic linker for hppa using ELF. 
Lazy binding doesn't work 100% of the time so force immediate binding.
One possible reason is that the PLT stub blows away r20 which the
compiler might not take into account.
 2004-05-17 13:16:02 +00:00
skrll
e88c851d08 Test before commit. 2004-05-17 11:00:01 +00:00
skrll
0556cd7d3c Re-arrange/correct some asserts. 2004-05-17 10:23:58 +00:00
skrll
8431fb3c4c Wrap a couple of lines to <80 columns 2004-05-14 11:59:14 +00:00
skrll
c788a1a535 Whitespace. 2004-05-14 11:11:02 +00:00
skrll
212b905081 Garbage collect the RTLD_RELOCATE_SELF error. 2004-05-12 20:23:29 +00:00
skrll
c0148a0dfe Add a debug message. 2004-05-12 20:12:37 +00:00
mhitch
b6825b1e42 The -symbolic flag in gcc 2.95.3 is not passed to the linker, which is 
required.  Restore the -Bsymbolic option in LDFLAGS on the vax.  Fixes
the problem with ld.elf_so mentioned on port-vax.
 2004-04-28 02:04:56 +00:00
skrll
236df38503 Be more pedantic about where we use -shared, etc. 2004-03-24 08:01:26 +00:00
atatat
1de60baa7c The <sys/sysctl.h> header already provides a perfectly good struct for 
this purpose, so...uh...use it.
 2004-03-16 05:25:12 +00:00
enami
76eaac1d6f Whitespace. 2004-02-26 21:45:59 +00:00
skrll
52581467e2 Whitespace. 2004-02-23 21:27:20 +00:00
skrll
4d30716d36 Remove the millicode hack - its not needed anymore. 
Get the entry point right.
 2004-02-23 21:20:40 +00:00
uwe
8eb5ba6d09 Use CC instead of LD to link the ld.elf_so. This will correctly link 
"millicode" from libgcc_pic.a on platforms that need it.

From Nick Hudson <skrll@netbsd>.
 2004-02-22 01:39:43 +00:00
skrll
b5330c98c7 Add the standard XXX about CPPFLAGS and -fpic here. 2004-02-21 16:02:06 +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
enami
074a9e8fee Salvage the instruction to save the pointer to ps_strings for later use 
so that setproctitle() works again.  The problem reported by Naoki Fukaumi
on japanese mailing list.

Approved by: Ross Harvey
 2004-02-18 23:04:49 +00:00
enami
f1740378ad Don't assume past the mmaped region is accessible. 2004-02-15 02:59:04 +00:00
enami
63fcb5a042 Fix warning message: the failed operation is not fstat but mmap. 2004-02-15 02:56:53 +00:00
mrauch
f06ab72b6e Change the symbol lookup order to search RTLD_GLOBAL objects 
before referencing object's DAG. This makes it possible for
C++ exceptions to work across shared libraries.

Patch taken from FreeBSD: src/libexec/rtld-elf/rtld.c: 1.67 -> 1.68,
committed there by kan@FreeBSD.org.
 2003-12-07 09:36:06 +00:00
christos
1a2b5965a9 Don't try to preload an empty string. 2003-11-25 14:36:49 +00:00
simonb
28817edd35 Restore handling of reloc entries that point to unaligned locations 
that seems to have disappeared in rev 1.34.

Thanks to Jason Thorpe for suggesting where to look.
Fixes the simple test case in PR port-mips/23366.
 2003-11-19 19:41:57 +00:00
lukem
130ab7336b Rework how MAKEVERBOSE operates: 
*	Don't bother prefixing commands with a line of  ${_MKCMD}\
	and instead rely upon "make -s".  This is less intrusive on
	all the Makefiles than the former.  Idea from David Laight.

    *	Rename the variables use to print messages.  The scheme now is:
	    _MKMSG_FOO		Run  _MKMSG 'foo'
	    _MKTARGET_FOO	Run  _MKMSG_FOO ${.TARGET}
	From discussion with Alistair Crooks.
 2003-10-21 10:01:19 +00:00
fvdl
d83c6c4294 Don't use NULL for integers. 2003-10-21 01:19:10 +00:00
lukem
ddff99b7f4 rework to use the newer _MKMSGCREATE (et al) macros 2003-10-19 04:45:01 +00:00
lukem
6cf0d872cd support MAKEVERBOSE 2003-10-19 01:19:10 +00:00
matt
fd1caff7c2 Update to new reality. XXX _rtld_bind still needs to be written. 2003-10-06 16:08:35 +00:00
mycroft
65ed3bdcdd Make the effect of the hack clearer. 2003-09-24 10:25:26 +00:00
mycroft
7242c1114c One more tweak... 2003-09-24 10:18:52 +00:00
mycroft
7b234fd232 Make the comment a little more accurate. 2003-09-24 09:59:45 +00:00
mycroft
89ea37c60a Temporary workaround for some binutils/ld lossage. See the comment for more 
information.
 2003-09-24 09:55:35 +00:00
mycroft
5fb0b88880 Some notes... 2003-09-24 06:20:33 +00:00
enami
9c2e06fe24 Space after the keyword `if'. 2003-09-22 14:37:57 +00:00
mycroft
5bd33bcad6 Back out revision 1.100. There is something screwier going on. 2003-09-07 22:17:43 +00:00
mycroft
323a574dc3 dlsym() should not leave an error set. It confuses programs that check 
dlerror() (such as pkgsrc/graphics/transcode).
 2003-08-31 21:52:01 +00:00
skrll
d900731978 Resolve dlsym(3) and friends directly so that dlsym(RTLD_NEXT,...) works. 
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
agc
8e6ab8837d Move UCB-licensed code from 4-clause to 3-clause licence. 
Patches provided by Joel Baker in PR 22284, verified by myself.
 2003-08-07 09:46:37 +00:00
skrll
59b0f10729 KNF 2003-08-05 19:41:53 +00:00
salo
99410184e7 netbsd.org->NetBSD.org 2003-07-26 19:24:24 +00:00
mrg
88bb1d9b3b include <string.h> or <stdlib.h> for all prototypes 2003-07-26 15:04:38 +00:00
skrll
5f573ab68d ANSIfy and de-__P(). 2003-07-24 10:12:25 +00:00
skrll
ddc9322f3b Support immediate binding on arm. 2003-07-21 15:34:35 +00:00
skrll
b2695e5a1f arm and sh5 also have bogus DT_TEXTRELs. sh5 was already covered so just 
update the comment.
 2003-07-21 15:17:55 +00:00
skrll
619dee76f6 Correct the in_plt parameter of a couple of _rtld_find_symdef calls. 
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
skrll
d4cfd1c666 s/_rltd_obj_rtld/_rtld_objself/ in #ifdef notyet code. 2003-07-15 07:39:55 +00:00
skrll
9192c2eed4 Whitespace 2003-07-15 07:38:29 +00:00
marcus
fae2567c9b Removed unused function. 2003-07-05 20:48:39 +00:00
tsutsui
0e65101f60 Add function prototype declarations. 2003-07-05 18:18:51 +00:00
marcus
a4878b4349 Bugfix: Don't pick addend both from reloc and contents at the same time. 2003-07-02 15:29:34 +00:00
marcus
6aeeb40d4a Updated to work with current rtld code. 2003-06-30 00:50:46 +00:00
marcus
5404577abf SH also has a bogus DT_TEXTREL, it seems. 2003-06-30 00:49:25 +00:00
simonb
a9f5b3f871 KNF- blank lines before code at start of functions. 2003-06-05 10:41:32 +00:00
christos
683092605c Add RTLD_FIRST, RTLD_NEXT, RTLD_DEFAULT, from FreeBSD 2003-05-30 15:43:33 +00:00
petrov
458dbd70ac Fix alignment problem in debug output. 
Happens only under RTLD_DEBUG_RELOC.
 2003-05-23 20:13:50 +00:00
mycroft
f57f7ac072 Back out previous change for now -- it needs more work. 2003-04-24 16:55:29 +00:00
mycroft
8826c5e475 Attempt to give dlsym() the same symbol-searching semantics as _rtld_bind(). 
Tested in a handful of cases.
Reviewed by: a dead silence
 2003-04-23 17:40:25 +00:00
scw
0b8f02edad Handle unaligned relocations, and RELATIVE relocs with non-zero addends. 
This gets binaries linked against libstdc++ working (FSVO "working").
 2003-04-21 11:54:46 +00:00
scw
e6b13790fa SH5 needs __HAVE_FUNCTION_DESCRIPTORS defined in order for ld.elf_so 
to resolve SHmedia function pointers correctly.
 2003-03-26 14:46:32 +00:00
scw
d174ad2eab Add support for shared libraries/dynamically linked binaries on sh5. 
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
taca
28d2056e12 make it compile in /usr/src/rescue directory. 2003-03-06 17:01:27 +00:00
matt
7b28c56025 Align psections to their specified alignment (if possible). Use 
mmap(2) MAP_ALIGNED.
 2003-03-06 07:34:56 +00:00
mycroft
7cbba1750d Shorten rtld_start() by 2 instructions or 8 bytes, and make it not use GOT 
entries.
 2003-03-02 22:56:14 +00:00
mycroft
d2fd5f837d Shorten rtld_start() slightly -- there's a base-relative _DYNAMIC pointer at 
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
mycroft
33131cb294 Update copyright. 2003-03-01 15:14:59 +00:00
christos
861ff9be73 we have constants for all this crap. don't hard-code things. 2003-02-28 23:05:24 +00:00
mycroft
9939b38056 Eliminate GOT usage in rtld_start() on this platform, too. 2003-02-28 22:37:35 +00:00
thorpej
527c1efca7 Use the "__NetBSD_Version__" constant rather than the "NetBSD" constant 
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
mycroft
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
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
uwe
6a4d4259ae Do not add ${LIBC_PIC} to DPADD if MKPICINSTALL is "no". 2003-02-26 06:03:40 +00:00
wiz
990562bfef .Nm does not need a dummy argument ("") before punctuation or 
for correct formatting of the SYNOPSIS any longer.
 2003-02-25 10:34:36 +00:00
mycroft
c42fd7b479 Revert previous change. 2003-02-21 01:12:56 +00:00
fvdl
c8ba6436ed If fstat info was passed, and from it it can be seen that the file size 
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
matt
0655a07988 Fix bug where only 2/3 of the PLT was being synched with the icache. 
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
junyoung
8707cd2a36 Gracefully exit when invoked directly. Use of assert() here caused a segfault. 
Address PR#11785.
 2002-12-14 15:37:57 +00:00
junyoung
9e11602ee9 Remove comment which is not true any more. alpha and i386 support 
R_xxx_COPY relocations.
 2002-12-14 09:13:00 +00:00
junyoung
fd1f5e8f1b A bit speedup: in _rtld_load_object(), save the number of calls to 
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
thorpej
044aeabaad Bintuils-current initializes the GOT entries to 0 (instead of the 
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
mycroft
be3692c5a7 Back out the last two changes. They were misguided, and the code worked 
correctly before.
 2002-11-25 19:49:25 +00:00
fvdl
100e201ec6 Replace return -1 in rtld_bind with _rtld_die() call. 2002-11-24 18:19:23 +00:00
fvdl
d93db1cfce Implement self-relocation as is required now. 2002-11-24 18:16:45 +00:00
fvdl
5505734fa9 For the debug case, print relocbase as well at the start of _rtld(). 2002-11-24 18:13:30 +00:00
junyoung
2cc0cde8f5 Now _rtld_relocate_objects() returns with error as soon as any of 
subsequent calls in it fails.

Spotted by wiz and enami.
 2002-11-22 04:39:37 +00:00
junyoung
b5ffe4c33c Simplify code a bit. 2002-11-21 19:09:56 +00:00
nathanw
15f633fbd3 In _rtld_load_library(), ensure that the old _rtld_error state (a message from 
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
nathanw
6c24ccfd1f Remove "extern const chat *_rtld_error_message;". There is no such 
variable, and never has been.
 2002-11-14 20:11:48 +00:00
matt
01ba93bc3c Convert to register prefixes. 2002-10-31 20:23:25 +00:00
thorpej
b777dba640 _rtld_bind(): Don't use "rela" until after we've (potentially) adjusted 
it.
 2002-10-18 20:35:25 +00:00
junyoung
d0c512001c Embedded whitespace in dirname is supported again. 2002-10-06 01:36:36 +00:00
junyoung
2036ad0c3f A line whose length is 0 always begins with '#'. 2002-10-05 16:26:37 +00:00