Commit Graph

2591 Commits

Author SHA1 Message Date
skrll
ff1072d23a Whitespace. 2011-03-10 12:53:42 +00:00
joerg
aad599979d Add TLS support infrastructure. For dynamic binaries, ld.elf_so exports
_rtld_tls_allocate and _rtld_tls_free. libpthread uses this functions to
setup the thread private area of all new threads. ld.elf_so is
responsible for setting up the private area for the initial thread.
Similar functions are called from _libc_init for static binaries, using
dl_iterate_phdr to access the ELF Program Header.

Add test cases to exercise the different TLS storage models. Test cases
are compiled and installed on all platforms, but are skipped on
platforms not marked for TLS support.

This material is based upon work partially supported by
The NetBSD Foundation under a contract with Joerg Sonnenberger.

It is inspired by the TLS support in FreeBSD by Doug Rabson and the
clean ups of the DragonFly port of the original FreeBSD modifications.
2011-03-09 23:10:05 +00:00
bouyer
063f96f3c2 merge the bouyer-quota2 branch. This adds a new on-disk format
to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.

See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.
2011-03-06 17:08:10 +00:00
matt
4fee4fe7b3 Don't rely on >32bit math. 2011-03-04 00:40:48 +00:00
pooka
33ee52c7dc make DEBUG compile without RTLD_DEBUG 2011-02-24 10:58:54 +00:00
matt
483a1c95a2 Fix problem with bss-plt objects which a reloc index, not offset.
(secure-plt uses an offset (index*sizeof(rela), bss-plt uses an index)
secure-plt will now take the offset and divide by 12 for an index.
2011-02-10 02:28:20 +00:00
pooka
eb725c2168 Call daemon() later to make sure there is a listening socket by
the time the foreground process exits.

discussed with mrg.
2011-02-06 19:00:53 +00:00
skrll
3770380428 Unbreak gdb by ensuring _rtld_debug_state is in the dynamic symbol table.
mmm 1 line diffs

mmm not breaking backwards compatibility for anything known/unknown or
public/private.
2011-01-25 12:25:43 +00:00
matt
709c8a2f01 Move powerpc gotptr to the end to preserve binary compatibility. 2011-01-16 15:56:37 +00:00
matt
b094d98191 Warn about DT_TEXTRELs 2011-01-16 02:36:05 +00:00
matt
d31dbd7578 Add secure-plt support for powerpc to ld.elf_so. As part of this, we have to
stop calling into the GOT/_DYNAMIC since they are no longer executable.
2011-01-16 01:22:29 +00:00
christos
bfd4da8575 PR/44390: Paul Koning: make code gcc-4.5.1 friendly. 2011-01-14 23:56:13 +00:00
pooka
09159e5c0a Make sure bozo_auth_check_401() isn't called with a NULL "request".
reviewed by mrg
2011-01-12 19:29:24 +00:00
plunky
f302f6417c the Name for this manpage is "ld.aout_so". Use it. 2011-01-01 16:34:52 +00:00
skrll
f1d73a2c94 Add support for DF_1_BIND_NOW, DF_1_NODELETE and DF_1_NOOPEN marked
objects, and the RTLD_NODELETE and RTLD_NOLOAD flags to dlopen(3).

Mark libpthread as DF_1_NOOPEN and use it to test the functionality.

Somewhat taken from FreeBSD.

Fixes PR 42029.

OK from christos and joerg.
2010-12-24 12:41:42 +00:00
mlelstv
e5275d16e0 Deduce raw device correctly by prepending "r" to basename. 2010-12-23 18:08:41 +00:00
skrll
1f45aab781 Sprinkle some KNF. 2010-12-19 17:26:51 +00:00
skrll
ad7786ec8b Remove unnecessary #ifdef RTLD_DEBUG 2010-12-19 17:17:50 +00:00
wiz
617acddc41 Remove superfluous Pp. 2010-12-17 08:50:26 +00:00
skrll
1ee8ff33ba Remove implementation detail.
Bump date.
2010-12-17 07:04:52 +00:00
joerg
c4120e324e Replace use of errlist with a single concatenated version and an offset
array. This requires less storage and avoids one runtime relocation per
errno value.
2010-12-16 22:52:32 +00:00
joerg
67cc8c0871 Don't use normal environment handling functions from libc, but iterate
once over the array and clean out entries as needed.
2010-12-16 22:47:27 +00:00
skrll
126c589398 s/rdbg/dbg/ in a few places. 2010-12-16 19:59:39 +00:00
skrll
76d5f138f4 Remove incorrect comment. 2010-12-16 19:35:38 +00:00
wiz
fbc697a1ed Note that $ORIGIN kernel support (in kern/kern_exec.c) is currently disabled.
Info from skrll@.
Bump date.
2010-12-16 19:25:41 +00:00
tls
eaa351b215 When invoking a content handler specified via -C, set the REDIRECT_STATUS
CGI variable to "200".  This approximates the Apache behavior which is
required by phpcgi in PHP 5.3 (and by some compilations of older PHP
versions).

I have a revolutionary idea.  Perhaps instead of imposing bizarre
requirements on other programs in the name of "security", the PHP
developers should make their own code compile with oh, I don't know,
maybe -Wuninitialized.  That might have an effect on the security of
systems using PHP rather than on the "security" of such systems...

...excuse me, got to go now, I think my airquotes just wore out.
2010-12-14 13:27:39 +00:00
joerg
67e01e0a99 Build ld.elf_so with -fvisibility=hidden. Exploit this for i386/x86_64
to simplify the assembler code.
2010-12-05 00:56:06 +00:00
joerg
91118529e4 ANSIfy 2010-12-03 23:07:49 +00:00
joerg
239c31f883 Add comment about the unusual stack alignment in .rtld_bind_start. 2010-12-03 22:48:25 +00:00
tron
1fbd900608 Don't use internal libc function __findenv(). 2010-11-14 22:09:16 +00:00
christos
acfd35dad9 PR/44010: YAMAMOTO Takashi: sbrk: grow 0xb3ba2000 failed, error = 12"
(due to setenv changes?)
Provide a mini unsetenv that does not allocate/free memory and does not
bother about locking.
2010-10-29 15:08:17 +00:00
skrll
8b916d603d Add cast so that usr.bin/ldd/elf32 builds. 2010-10-16 17:48:12 +00:00
skrll
e6cdac9c4b Implement dl_iterate_phdr.
Somewhat taken from FreeBSD. Manual page from OpenBSD.
2010-10-16 10:27:06 +00:00
skrll
0a77584d8f Revert previous for now. It's part of a larger commit which will arrive
soon.
2010-10-15 15:08:05 +00:00
skrll
a048346afd Be more tolerant to the location of PT_PHDR in the segment list. 2010-10-15 07:22:44 +00:00
christos
45bdf1678c restore binary compatibility for pre-2.0 binaries, requested by skrll and core. 2010-10-10 21:27:16 +00:00
skrll
a108583dc7 Oops. Remove trailing whitespace in previous. 2010-09-30 19:45:24 +00:00
skrll
d965c46816 Improve debug output. 2010-09-30 19:43:11 +00:00
skrll
0e07ba7138 Add the magic branch instruction that is used by GCC's
__canonicalize_funcptr_for_compare() function to fixup relocations in
order to do function pointer comparisons.

From OpenBSD.
2010-09-30 19:32:40 +00:00
skrll
06acf46b03 Introduce a new type Elf_Symindx for use in decoding the symbol hash table
section and allow this type to be overridden.

The ELF specification says it should always be uint32_t (Elf_Word), but
alpha decided to be different (not sure why). Define Elf_Symindx to be
uint64_t on alpha.

Alpha no longer uses non-standard definitions of Elf64_Sword and
Elf64_Word.  Remove the ability to override these types.

Fixes ld.elf_so after Herculean effort from me and martin.
2010-09-30 09:11:18 +00:00
matt
af56990d0c Make the GOT1_MASK 64-bit clean. 2010-09-24 15:20:52 +00:00
skrll
8f77c5159b Comment reformat. 2010-09-24 12:00:10 +00:00
skrll
2c56298dd9 Wrap long line. 2010-09-24 11:59:28 +00:00
skrll
09601c884f Whitespace. 2010-09-24 11:57:11 +00:00
skrll
6229c56fea Wrap long lines
Reformat comments.
2010-09-24 11:41:46 +00:00
joerg
11fdf81f84 Avoid casting from d_val to plttype of different signedness.
Just two booleans for the same purpose.
2010-09-23 13:03:35 +00:00
wiz
8d65c98f7a Fix typo. 2010-09-21 07:05:28 +00:00
mrg
df5be5736c merge bozohttpd 20100920 2010-09-20 23:11:38 +00:00
mrg
729c374954 initial import of bozohttpd 20100920. the only change missing in here is:
o  fix dynamic CGI content maps, from rudolf
2010-09-20 23:07:21 +00:00
mrg
44128f48a9 fix an error in the previous. 2010-09-20 22:18:22 +00:00