On 09/22/2011 11:48 AM, Pauli, David, MU wrote:
Hey,
I commented 2 lines in cap_flag.c:
From (line 24)
# [...]
#if (raised && good_cap_t(cap_d) && value >= 0 && value < __CAP_BITS
# && set >= 0 && set < NUMBER_OF_CAP_SETS) {
# [...]
To
# [...]
#if (raised && good_cap_t(cap_d) && value >= 0 //&& value < __CAP_BITS
# && set >= 0 && set < NUMBER_OF_CAP_SETS) {
# [...]
And (line 48)
# [...]
#if (good_cap_t(cap_d) && no_values > 0 && no_values <= __CAP_BITS
# && (set >= 0) && (set < NUMBER_OF_CAP_SETS)
# [...]
To
# [...]
#if (good_cap_t(cap_d) && no_values > 0 //&& no_values <= __CAP_BITS
# && (set >= 0) && (set < NUMBER_OF_CAP_SETS)
# [...]
Now the error with __CAP_BITS disappeared, but another error cames up:
# $ ./ltib -m scbuild -p libcap.spec
#
# Processing: libcap
# ====================
# Build path taken because: build key set, no prebuilt rpm,
#
# rpmbuild --dbpath
/usr/LTIB/ltib-mpc8313erdb-20081222/rootfs//var/lib/rpm --target ppc
--define '_unpackaged_files_terminate_build 0' --define '_target_cpu
ppc' --define '__strip strip' --define '_topdir
/usr/LTIB/ltib-mpc8313erdb-20081222/rpm' --define '_prefix /usr'
--define '_tmppath /usr/LTIB/ltib-mpc8313erdb-20081222/tmp' --define
'_mandir /usr/share/man' --define '_sysconfdir /etc' --define
'_localstatedir /var' -bc --short-circuit
/usr/LTIB/ltib-mpc8313erdb-20081222/dist/lfs-5.1/libcap/libcap.spec
# Building target platforms: ppc
# Building for target ppc
# Executing(%build): /bin/sh -e
/usr/LTIB/ltib-mpc8313erdb-20081222/tmp/rpm-tmp.3677
# + umask 022
# + cd /usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD
# + cd libcap-2.22
# + make
# make -C libcap all
# make[1]: Entering directory
`/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap'
# => making cap_names.list.h from
/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap/../libcap/include/linux/capability.h
# perl -e 'while ($l=<>) { if ($l =~ /^\#define[ \t](CAP[_A-Z]+)[
\t]+([0-9]+)\s+$/) { $tok=$1; $val=$2; $tok =~ tr/A-Z/a-z/; print
"{\"$tok\",$val},\n"; } }'
/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap/../libcap/include/linux/capability.h
| fgrep -v 0x > cap_names.list.h
# gcc -O2 -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -fPIC
-I/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap/../libcap/include
-I/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap/../libcap/include
_makenames.c -o _makenames
#./_makenames > cap_names.h
# /bin/sh: ./_makenames: cannot execute binary file
# make[1]: *** [cap_names.h] Error 126
# make[1]: Leaving directory
`/usr/LTIB/ltib-mpc8313erdb-20081222/rpm/BUILD/libcap-2.22/libcap'
# make: *** [all] Error 2
# error: Bad exit status from
/usr/LTIB/ltib-mpc8313erdb-20081222/tmp/rpm-tmp.3677 (%build)
#
#
# RPM build errors:
# Bad exit status from
/usr/LTIB/ltib-mpc8313erdb-20081222/tmp/rpm-tmp.3677 (%build)
# Build time for libcap: 0 seconds
#
# Failed building libcap
#
#
# f_scbuild() returned an error, exiting
# traceback:
# main:501
#
# Exiting on error or interrupt
What is wrong now =(
So long, David
The problem is that _makenames is being built with "gcc", but when
executing the .spec file (and resultant make), the toolchain has been
"spoofed" where /opt/ltib/usr/spoof is in the path; look in
/opt/ltib/usr/spoof and you'll see the tools that are spoofed such that
they point to the cross-toolchain instead of the native toolchain.
If you "file rpm/BUILD/libca-2.2/libcap/_makenames", you'll see its a
cross-compiled executabe, not compiled to run on the host. Since
_makenames is a utility used int he build process, you want it compiled
with the host compiler....
If you modify the libcap.spec file to use "make HOSTCC="$BUILDCC ..."
and modify rpm/BUILD/libcap-2.2/libcap/Makefile to compile/link
_makenames using $(HOSTCC) instead of $(CC), then I think it will get
past this problem (since that will build it with the host compiler, not
the cross compiler). Don't be surprised if this isn't the only place
your libcap-2.2 build breaks due to not being "cross-compilation
friendly"...
--
Peter Barada
[email protected]
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