freebsd-dev/libexec
Konstantin Belousov c8da4f07d7 Allow the NULL, RTLD_SELF and RTLD_NEXT handles to work with dlfunc(3).
dlfunc() called dlsym() to do the work, and dlsym() determines the dso
that originating the call by the return address. Due to this, dlfunc()
operated as if the caller is always the libc.

To fix this, move the dlfunc() to rtld, where it can call the internal
implementation of dlsym, and still correctly fetch return address.
Provide usual weak stub for the symbol from libc for static binaries.
dlfunc is put to FBSD_1.0 symver namespace in the ld.so export to
override dlfunc@FBSD_1.0 weak symbol, exported by libc.

Reported, analyzed and tested by:	Tijl Coosemans <tijl ulyssis org>
PR: standards/133339
Reviewed by:	kan
2009-04-03 19:17:23 +00:00
..
atrun
bootpd Use RTF_LLDATA. 2009-03-31 23:02:51 +00:00
comsat Fix handling of pts(4) device names in comsat(8). Also catch fork() errors. 2009-01-17 15:56:38 +00:00
fingerd Mark functions as __dead2 in order to help the LLVM static checker 2008-08-04 01:25:48 +00:00
ftpd o Fix typo: indentical -> identical. 2009-01-30 09:42:25 +00:00
getty
lukemftpd
mail.local
makekey
mknetid
pppoed
rbootd
revnetgroup
rlogind
rpc.rquotad Whitespace and style fixes, build at WARNS level 6. 2008-11-04 14:17:49 +00:00
rpc.rstatd Use sysctl to fetch stats from the kernel instead of reading variables 2008-06-10 18:47:43 +00:00
rpc.rusersd
rpc.rwalld
rpc.sprayd
rshd
rtld-aout
rtld-elf Allow the NULL, RTLD_SELF and RTLD_NEXT handles to work with dlfunc(3). 2009-04-03 19:17:23 +00:00
save-entropy
smrsh
talkd
tcpd
telnetd Convert telnetd(8) to use posix_openpt(2). 2008-11-13 19:05:27 +00:00
tftp-proxy
tftpd
ypxfr
Makefile add new build knobs and jigger some existing controls to improve 2008-09-21 22:02:26 +00:00
Makefile.inc