freebsd-src/libexec
Konstantin Belousov 082f959ac8 Fix several problems with our ELF filters implementation.
Do not relocate twice an object which happens to be needed by loaded
binary (or dso) and some filtee opened due to symbol resolution when
relocating need objects.  Record the state of the relocation
processing in Obj_Entry and short-circuit relocate_objects() if
current object already processed.

Do not call constructors for filtees loaded during the early
relocation processing before image is initialized enough to run
user-provided code.  Filtees are loaded using dlopen_object(), which
normally performs relocation and initialization.  If filtee is
lazy-loaded during the relocation of dso needed by the main object,
dlopen_object() runs too earlier, when most runtime services are not
yet ready.

Postpone the constructors call to the time when main binary and
depended libraries constructors are run, passing the new flag
RTLD_LO_EARLY to dlopen_object().  Symbol lookups callers inform
symlook_* functions about early stage of initialization with
SYMLOOK_EARLY.  Pass flags through all functions participating in
object relocation.

Use the opportunity and fix flags argument to find_symdef() in
arch-specific reloc.c to use proper name SYMLOOK_IN_PLT instead of
true, which happen to have the same numeric value.

Reported and tested by:	theraven
Reviewed by:	kan
MFC after:	2 weeks
2012-03-20 13:20:49 +00:00
..
atrun Make WARNS=6 the default for libexec/. 2010-01-02 09:50:19 +00:00
bootpd Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
comsat Make comsat(8) approximately 15% smaller. 2011-12-10 18:35:26 +00:00
fingerd Forgot to initialize the debug variable. 2010-04-01 13:16:32 +00:00
ftpd Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
getty Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
lukemftpd Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
mail.local Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
mknetid Replace index() and rindex() calls with strchr() and strrchr(). 2012-01-03 18:51:58 +00:00
pppoed In libexec/pppoed/pppoed.c, use the correct printf length modifier for a 2011-12-16 16:07:39 +00:00
rbootd Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
revnetgroup Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
rlogind Replace index() and rindex() calls with strchr() and strrchr(). 2012-01-03 18:51:58 +00:00
rpc.rquotad The NFS quota-reporting RPC uses 32-bit sized fields. We approximate 2010-04-25 00:05:51 +00:00
rpc.rstatd Fixed static linkage. 2010-02-26 09:41:16 +00:00
rpc.rusersd Port all apps in libexec/ from libulog to utmpx. 2010-01-13 18:28:58 +00:00
rpc.rwalld add __unused 2010-12-19 13:05:17 +00:00
rpc.sprayd Make WARNS=6 the default for libexec/. 2010-01-02 09:50:19 +00:00
rshd Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
rtld-aout Spelling fixes for libexec/ 2012-01-07 16:09:54 +00:00
rtld-elf Fix several problems with our ELF filters implementation. 2012-03-20 13:20:49 +00:00
save-entropy
smrsh Define several extra macros in bsd.sys.mk and sys/conf/kern.pre.mk, to 2012-02-28 18:30:18 +00:00
talkd Remove unneeded use of struct timezone. 2010-08-08 02:45:48 +00:00
tcpd Make WARNS=6 the default for libexec/. 2010-01-02 09:50:19 +00:00
telnetd
tftp-proxy Make WARNS=6 the default for libexec/. 2010-01-02 09:50:19 +00:00
tftpd Avoid error log for transfer stop w/o error code. 2012-02-21 14:59:07 +00:00
ulog-helper Minor cleanups to ulog-helper: 2011-06-21 17:59:51 +00:00
ypxfr Consistently set RPCGEN_CPP when running rpcgen, so the C preprocessor 2012-02-07 09:27:07 +00:00
Makefile Add a new library: libulog. 2009-12-03 15:48:24 +00:00
Makefile.inc Make WARNS=6 the default for libexec/. 2010-01-02 09:50:19 +00:00