src/libexec/rtld-elf, branch releng/9.1 FreeBSD source tree MFC r239470: Do not call process_nodelete with NULL object pointer. 2012-08-21T22:42:46+00:00 Alexander Kabaev kan@FreeBSD.org 2012-08-21T22:42:46+00:00 bcdef61dc35bda912d30dac22f4dce33461dc635 The place where the function is called can be reached if object loading and relocation fails too, in which case obj pointer will be NULL. Do not call process_nodelete then, or crash will follow. Pointy hat to: kan Approved by: re (kib) 
The place where the function is called can be reached if object loading
and relocation fails too, in which case obj pointer will be NULL. Do not
call process_nodelete then, or crash will follow.

Pointy hat to: kan
Approved by: re (kib)
MFC r239253: Pospone the DF_1_NODELETE processing until object DAG is 2012-08-20T16:57:27+00:00 Alexander Kabaev kan@FreeBSD.org 2012-08-20T16:57:27+00:00 98774675cac7c699f7fa8b58f80784de01dd36b8 fully loaded. Trying to up the reference from the load loop risks missing dependencies that have not been loaded yet. Approved by: re (kib) 
fully loaded.

Trying to up the reference from the load loop risks missing
dependencies that have not been loaded yet.

Approved by: re (kib)
MFC r239019: Parse notes only after object structure had been allocated. 2012-08-20T15:05:29+00:00 Alexander Kabaev kan@FreeBSD.org 2012-08-20T15:05:29+00:00 994d4633d6f74eab99dbe914962c1d5e4855c03d Approved by: re (kib) 
Approved by: re (kib)
MFC r237659: 2012-07-05T15:34:55+00:00 Konstantin Belousov kib@FreeBSD.org 2012-07-05T15:34:55+00:00 22758c811ceeafc7c252dcc3d8d58be01c81af02 Ensure that for the object which is a dependency for some filtee, relocations are performed before the object's initializer is called. Approved by: re (kensmith) 
Ensure that for the object which is a dependency for some filtee,
relocations are performed before the object's initializer is called.

Approved by:	re (kensmith)
MFC r237058: 2012-06-28T14:13:45+00:00 Konstantin Belousov kib@FreeBSD.org 2012-06-28T14:13:45+00:00 9bf1b8666c493af328ec8c4d16998d995f863c56 Eliminate the static buffer used to read the first page of the mapped object, and eliminate the pread(2) call as well. Mmap the first page of the object temporaly, and unmap it on error or last use. Potentially, this leaves one-page gap between succeeding dlopen(3), but there are other mmap(2) consumers as well. Fix several cases were the whole mapping of the object leaked on error. Use MAP_PREFAULT_READ for mmap(2) calls which map real object pages 
Eliminate the static buffer used to read the first page of the mapped
object, and eliminate the pread(2) call as well. Mmap the first
page of the object temporaly, and unmap it on error or last use.
Potentially, this leaves one-page gap between succeeding dlopen(3),
but there are other mmap(2) consumers as well.

Fix several cases were the whole mapping of the object leaked on error.

Use MAP_PREFAULT_READ for mmap(2) calls which map real object pages
MFC: r231618, r233231 (partial) 2012-06-21T13:01:00+00:00 Marius Strobl marius@FreeBSD.org 2012-06-21T13:01:00+00:00 5a884913126c3f633efbe0ccbe661e4a471a9de3 Add thread-local storage support for ARM to rtld-elf Reviewed by: cognet Obtained from: NetBSD 
Add thread-local storage support for ARM to rtld-elf

Reviewed by:    cognet
Obtained from:  NetBSD
MFC: 234851, 235059 2012-06-03T18:16:17+00:00 Baptiste Daroussin bapt@FreeBSD.org 2012-06-03T18:16:17+00:00 f0d8abd4d9ac7d1c8b559600d15db014f9801e18 Add two special directives to libmap.conf: include <file>: Parse the contents of file before continuing with the current file. includedir <dir>: Parse the contents of every file in dir that ends in .conf before continuing with the current file. Any file or directory encountered while processing include or includedir directives will be parsed exactly once, even if it is encountered multiple times. Approved by: des (mentor) 
Add two special directives to libmap.conf:
include <file>:
  Parse the contents of file before continuing with the current file.
includedir <dir>:
  Parse the contents of every file in dir that ends in .conf before continuing
  with the current file.
Any file or directory encountered while processing include or includedir
directives will be parsed exactly once, even if it is encountered multiple
times.

Approved by:	des (mentor)
MFC r234840: 2012-05-13T12:50:42+00:00 Konstantin Belousov kib@FreeBSD.org 2012-05-13T12:50:42+00:00 7507b05f01bc2f5cc0b558b6f4f78aba85f761be Split the symlook_obj1 into a loop iterating over the ELF object symbol hash elements, and a helper matched_symbol() which match the given hash entry and request, performing needed type and version checks. MFC r234841: Add GNU hash support for rtld. MFC r235054: Work around a situation where symlook_obj() could be called for the object for which digest_dynamic1() was not done yet. Just return EINVAL and do not try to dereference NULL buckets hash array. 
Split the symlook_obj1 into a loop iterating over the ELF object symbol
hash elements, and a helper matched_symbol() which match the given hash
entry and request, performing needed type and version checks.

MFC r234841:
Add GNU hash support for rtld.

MFC r235054:
Work around a situation where symlook_obj() could be called for the
object for which digest_dynamic1() was not done yet. Just return
EINVAL and do not try to dereference NULL buckets hash array.
MFC r234170: 2012-04-19T10:17:28+00:00 Konstantin Belousov kib@FreeBSD.org 2012-04-19T10:17:28+00:00 037cfc9ee77bd26caf4e6cc32b69aef99847938f Propagate the current state of rtld_bind_lock to dlopen_object() calls through the filter loading call chain. This fixes attempts to write-lock the already locked rtld_bind_lock when filter loading is initiated by relocation of dlopening dso. 
Propagate the current state of rtld_bind_lock to dlopen_object() calls
through the filter loading call chain. This fixes attempts to
write-lock the already locked rtld_bind_lock when filter loading is
initiated by relocation of dlopening dso.
MFC r233927: 2012-04-08T04:09:55+00:00 Konstantin Belousov kib@FreeBSD.org 2012-04-08T04:09:55+00:00 9cd3611186f6c23b09c26d3586bbf1bf56cc5468 Properly handle absent AT_CANARY aux entry. 
Properly handle absent AT_CANARY aux entry.