gentoo: support running tests under sandbox

when glibc runs its tests, it does so by invoking the local library loader.
in Gentoo, we build/run inside of our "sandbox" which itself is linked against
libdl (so that it can load libraries and pull out symbols).  the trouble
is that when you upgrade from an older glibc to the new one, often times
internal symbols change name or abi.  this is normally OK as you cannot use
libc.so from say version 2.3.6 but libpthread.so from say version 2.5, so
we always say "keep all of the glibc libraries from the same build".  but
when glibc runs its tests, it uses dynamic paths to point to its new local
copies of libraries.  if the test doesnt use libdl, then glibc doesnt add
its path, and when sandbox triggers the loading of libdl, glibc does so
from the host system system.  this gets us into the case of all libraries
are from the locally compiled version of glibc except for libdl.so.

http://bugs.gentoo.org/56898

diff --git a/Makeconfig b/Makeconfig
index cef0f06b640966ad60072d1085b1f7fdd1a7fcb2..d01ee2d90df3cdc4776901bdba511c84aba082ef 100644 (file)
--- a/Makeconfig
+++ b/Makeconfig
@@ -616,7 +616,7 @@ comma = ,
 sysdep-library-path = \
 $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
                                       $(filter -Wl$(comma)-rpath-link=%,\
-                                               $(sysdep-LDFLAGS)))))
+                                               $(sysdep-LDFLAGS)))) $(common-objpfx)/dlfcn)
 # $(run-via-rtld-prefix) is a command that, when prepended to the name
 # of a program built with the newly built library, produces a command
 # that, executed on the host for which the library is built, runs that

diff --git a/iconvdata/run-iconv-test.sh b/iconvdata/run-iconv-test.sh
index 5dfb69fe3a724ea2415201179274822b79e90d9e..669c2e40dad129ce213ad2d3c8fc955d5cf646e3 100755 (executable)
--- a/iconvdata/run-iconv-test.sh
+++ b/iconvdata/run-iconv-test.sh
@@ -31,7 +31,7 @@ temp2=$codir/iconvdata/iconv-test.yyy
 trap "rm -f $temp1 $temp2" 1 2 3 15
 
 # We have to have some directories in the library path.
-LIBPATH=$codir:$codir/iconvdata
+LIBPATH=$codir:$codir/iconvdata:$codir/dlfcn
 
 # How the start the iconv(1) program.
 ICONV='$codir/elf/ld.so --library-path $LIBPATH --inhibit-rpath ${from}.so \

diff --git a/nptl/tst-tls6.sh b/nptl/tst-tls6.sh
index 846c3219e5bee6166c158a8c90ab50e35c4faa0b..dae92783eaff9c60285dcc6adec41550b755bdb4 100755 (executable)
--- a/nptl/tst-tls6.sh
+++ b/nptl/tst-tls6.sh
@@ -26,7 +26,7 @@ run_program_env=$1; shift
 logfile=$common_objpfx/nptl/tst-tls6.out
 
 # We have to find libc and nptl
-library_path=${common_objpfx}:${common_objpfx}nptl
+library_path=${common_objpfx}:${common_objpfx}nptl:${common_objpfx}/dlfcn
 tst_tls5="${test_via_rtld_prefix} ${common_objpfx}/nptl/tst-tls5"
 
 > $logfile