scripts/build/libc/glibc.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 14 18:09:36 2008 +0000 (2008-09-14)
changeset 852 c17bb66e2aa5
parent 850 ef8549b58b6f
child 872 fd4bf138f08f
permissions -rw-r--r--
Enhance setting the minimum kernel version glibc will run against.
Ideally, eglibc should also benefit for that, but the current code does not set it.

/trunk/scripts/build/libc/glibc.sh | 38 33 5 0 +++++++++++++++---
/trunk/config/libc/glibc.in | 4 2 2 0 +-
/trunk/config/libc/uClibc.in | 2 2 0 0 +
/trunk/config/libc/eglibc.in | 4 2 2 0 +-
/trunk/config/libc/glibc-eglibc-common.in | 80 68 12 0 +++++++++++++++++++++++++++++++------
/trunk/config/libc.in | 69 38 31 0 ++++++++++++++++++--------------
6 files changed, 145 insertions(+), 52 deletions(-)
     1 # This file adds functions to build glibc
     2 # Copyright 2007 Yann E. MORIN
     3 # Licensed under the GPL v2. See COPYING in the root of this package
     4 
     5 do_print_filename() {
     6     [ "${CT_LIBC}" = "glibc" ] || return 0
     7     echo "glibc-${CT_LIBC_VERSION}"
     8     for addon in $(do_libc_add_ons_list " "); do
     9         # NPTL addon is not to be downloaded, in any case
    10         [ "${addon}" = "nptl" ] && continue || true
    11         echo "glibc-${addon}-${CT_LIBC_VERSION}"
    12     done
    13 }
    14 
    15 # Download glibc
    16 do_libc_get() {
    17     # Ah! Not all GNU folks seem stupid. All glibc releases are in the same
    18     # directory. Good. Alas, there is no snapshot there. I'll deal with them
    19     # later on... :-/
    20     CT_GetFile "${CT_LIBC_FILE}"                        \
    21                {ftp,http}://ftp.gnu.org/gnu/glibc       \
    22                ftp://gcc.gnu.org/pub/glibc/releases     \
    23                ftp://gcc.gnu.org/pub/glibc/snapshots
    24 
    25     # C library addons
    26     for addon in $(do_libc_add_ons_list " "); do
    27         # NPTL addon is not to be downloaded, in any case
    28         [ "${addon}" = "nptl" ] && continue || true
    29         CT_GetFile "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}" \
    30                    {ftp,http}://ftp.gnu.org/gnu/glibc       \
    31                    ftp://gcc.gnu.org/pub/glibc/releases     \
    32                    ftp://gcc.gnu.org/pub/glibc/snapshots
    33     done
    34 
    35     return 0
    36 }
    37 
    38 # Extract glibc
    39 do_libc_extract() {
    40     CT_ExtractAndPatch "${CT_LIBC_FILE}"
    41 
    42     # C library addons
    43     for addon in $(do_libc_add_ons_list " "); do
    44         # NPTL addon is not to be extracted, in any case
    45         [ "${addon}" = "nptl" ] && continue || true
    46         CT_ExtractAndPatch "${CT_LIBC}-${addon}-${CT_LIBC_VERSION}"
    47     done
    48 
    49     return 0
    50 }
    51 
    52 # There is nothing to do for glibc check config
    53 do_libc_check_config() {
    54     :
    55 }
    56 
    57 # This function installs the glibc headers needed to build the core compiler
    58 do_libc_headers() {
    59     # Only need to install bootstrap glibc headers for gcc-3.0 and above?  Or maybe just gcc-3.3 and above?
    60     # See also http://gcc.gnu.org/PR8180, which complains about the need for this step.
    61     grep -q 'gcc-[34]' "${CT_SRC_DIR}/${CT_CC_FILE}/ChangeLog" 2>/dev/null || return 0
    62 
    63     CT_DoStep INFO "Installing C library headers"
    64 
    65     mkdir -p "${CT_BUILD_DIR}/build-libc-headers"
    66     cd "${CT_BUILD_DIR}/build-libc-headers"
    67 
    68     CT_DoLog EXTRA "Configuring C library"
    69 
    70     # The following three things have to be done to build glibc-2.3.x, but they don't hurt older versions.
    71     # 1. override CC to keep glibc's configure from using $TARGET-gcc. 
    72     # 2. disable linuxthreads, which needs a real cross-compiler to generate tcb-offsets.h properly
    73     # 3. build with gcc 3.2 or later
    74     # Compare these options with the ones used when building glibc for real below - they're different.
    75     # As of glibc-2.3.2, to get this step to work for hppa-linux, you need --enable-hacker-mode
    76     # so when configure checks to make sure gcc has access to the assembler you just built...
    77     # Alternately, we could put ${PREFIX}/${TARGET}/bin on the path.
    78     # Set --build so maybe we don't have to specify "cross-compiling=yes" below (haven't tried yet)
    79     # Note: the warning
    80     # "*** WARNING: Are you sure you do not want to use the `linuxthreads'"
    81     # *** add-on?"
    82     # is ok here, since all we want are the basic headers at this point.
    83     # Override libc_cv_ppc_machine so glibc-cvs doesn't complain
    84     # 'a version of binutils that supports .machine "altivec" is needed'.
    85 
    86     addons_config="--enable-add-ons=$(do_libc_add_ons_list ,)"
    87     # We need to remove any threading addon when installing headers
    88     addons_config="${addons_config//nptl/}"
    89     addons_config="${addons_config//linuxthreads/}"
    90     addons_config=$(echo "${addons_config}" |sed -r -e 's/^,+//; s/,+$//; s/,+/,/g;')
    91 
    92     extra_config="${addons_config}"
    93     min_kernel_config=
    94     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
    95         *enable-kernel*) ;;
    96         *)  if [    "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" \
    97                  -o "${CT_LIBC_GLIBC_USE_HEADERS_MIN_KERNEL}" = "y"    ]; then
    98                 min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
    99             fi
   100             ;;
   101     esac
   102     extra_config="${extra_config} ${min_kernel_config}"
   103 
   104     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
   105     CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
   106     CT_DoLog DEBUG "Extra config passed : '${extra_config}'"
   107 
   108     libc_cv_ppc_machine=yes                     \
   109     CC=${cross_cc}                              \
   110     CT_DoExecLog ALL                            \
   111     "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure"   \
   112         --build="${CT_UNIQ_BUILD}"              \
   113         --host="${CT_TARGET}"                   \
   114         --prefix=/usr                           \
   115         --with-headers="${CT_HEADERS_DIR}"      \
   116         --without-cvs                           \
   117         --disable-sanity-checks                 \
   118         --enable-hacker-mode                    \
   119         ${extra_config}                         \
   120         --without-nptl
   121 
   122     CT_DoLog EXTRA "Installing C library headers"
   123 
   124     if grep -q GLIBC_2.3 "${CT_SRC_DIR}/${CT_LIBC_FILE}/ChangeLog"; then
   125         # glibc-2.3.x passes cross options to $(CC) when generating errlist-compat.c,
   126         # which fails without a real cross-compiler.
   127         # Fortunately, we don't need errlist-compat.c, since we just need .h
   128         # files, so work around this by creating a fake errlist-compat.c and
   129         # satisfying its dependencies.
   130         # Another workaround might be to tell configure to not use any cross
   131         # options to $(CC).
   132         # The real fix would be to get install-headers to not generate
   133         # errlist-compat.c.
   134         # Note: BOOTSTRAP_GCC is used by:
   135         # patches/glibc-2.3.5/glibc-mips-bootstrap-gcc-header-install.patch
   136 
   137         libc_cv_ppc_machine=yes                         \
   138         CT_DoExecLog ALL                                \
   139         make CFLAGS="-O -DBOOTSTRAP_GCC"                \
   140              OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"    \
   141              sysdeps/gnu/errlist.c
   142         mkdir -p stdio-common
   143 
   144         # sleep for 2 seconds for benefit of filesystems with lousy time
   145         # resolution, like FAT, so make knows for sure errlist-compat.c doesn't
   146         # need generating
   147         sleep 2
   148         CT_DoExecLog ALL touch stdio-common/errlist-compat.c
   149     fi
   150     # Note: BOOTSTRAP_GCC (see above)
   151     libc_cv_ppc_machine=yes                         \
   152     CT_DoExecLog ALL                                \
   153     make cross-compiling=yes                        \
   154          install_root=${CT_SYSROOT_DIR}             \
   155          CFLAGS="-O -DBOOTSTRAP_GCC"                \
   156          ${LIBC_SYSROOT_ARG}                        \
   157          OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"    \
   158          install-headers
   159 
   160     # Two headers -- stubs.h and features.h -- aren't installed by install-headers,
   161     # so do them by hand.  We can tolerate an empty stubs.h for the moment.
   162     # See e.g. http://gcc.gnu.org/ml/gcc/2002-01/msg00900.html
   163     mkdir -p "${CT_HEADERS_DIR}/gnu"
   164     CT_DoExecLog ALL touch "${CT_HEADERS_DIR}/gnu/stubs.h"
   165     CT_DoExecLog ALL cp -v "${CT_SRC_DIR}/${CT_LIBC_FILE}/include/features.h"  \
   166                            "${CT_HEADERS_DIR}/features.h"
   167 
   168     # Building the bootstrap gcc requires either setting inhibit_libc, or
   169     # having a copy of stdio_lim.h... see
   170     # http://sources.redhat.com/ml/libc-alpha/2003-11/msg00045.html
   171     CT_DoExecLog ALL cp -v bits/stdio_lim.h "${CT_HEADERS_DIR}/bits/stdio_lim.h"
   172 
   173     # Following error building gcc-4.0.0's gcj:
   174     #  error: bits/syscall.h: No such file or directory
   175     # solved by following copy; see http://sourceware.org/ml/crossgcc/2005-05/msg00168.html
   176     # but it breaks arm, see http://sourceware.org/ml/crossgcc/2006-01/msg00091.html
   177     [ "${CT_ARCH}" != "arm" ] && CT_DoExecLog ALL cp -v misc/syscall-list.h "${CT_HEADERS_DIR}/bits/syscall.h" || true
   178 
   179     # Those headers are to be manually copied so gcc can build properly
   180     pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
   181     pthreadtypes_h=
   182     case "${CT_THREADS}" in
   183         nptl)
   184             # NOTE: for some archs, the pathes are different, but they are not
   185             # supported by crosstool-NG right now. See original crosstool when they are.
   186             pthread_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_THREADS}/sysdeps/pthread/pthread.h"
   187             pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/nptl/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/bits/pthreadtypes.h"
   188             if [ ! -f "${pthreadtypes_h}" ]; then
   189                 pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/${CT_LIBC}-ports-${CT_LIBC_VERSION}/sysdeps/unix/sysv/linux/${CT_KERNEL_ARCH}/nptl/bits/pthreadtypes.h"
   190             fi
   191             ;;
   192         linuxthreads)
   193             pthreadtypes_h="${CT_SRC_DIR}/${CT_LIBC_FILE}/linuxthreads/sysdeps/pthread/bits/pthreadtypes.h"
   194             ;;
   195         *)
   196             pthread_h=
   197             pthreadtypes_h=
   198             ;;
   199     esac
   200     if [ -n "${pthread_h}" ]; then
   201         CT_DoExecLog ALL cp -v "${pthread_h}" "${CT_HEADERS_DIR}/pthread.h"
   202     fi
   203     if [ -n "${pthreadtypes_h}" ]; then
   204         CT_DoExecLog ALL cp -v "${pthreadtypes_h}" "${CT_HEADERS_DIR}/bits/pthreadtypes.h"
   205     fi
   206 
   207     CT_EndStep
   208 }
   209 
   210 # Build and install start files
   211 do_libc_start_files() {
   212     # Needed only in the NPTL case. Otherwise, return.
   213     [ "${CT_THREADS}" = "nptl" ] || return 0
   214 
   215     CT_DoStep INFO "Installing C library start files"
   216 
   217     mkdir -p "${CT_BUILD_DIR}/build-libc-startfiles"
   218     cd "${CT_BUILD_DIR}/build-libc-startfiles"
   219 
   220     CT_DoLog EXTRA "Configuring C library"
   221 
   222     # Add some default glibc config options if not given by user.
   223     extra_config=
   224     min_kernel_config=
   225     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
   226         *enable-kernel*) ;;
   227         *)  if [    "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" \
   228                  -o "${CT_LIBC_GLIBC_USE_HEADERS_MIN_KERNEL}" = "y"    ]; then
   229                 min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
   230             fi
   231             ;;
   232     esac
   233     extra_config="${extra_config} ${min_kernel_config}"
   234     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
   235         *-tls*) ;;
   236         *) extra_config="${extra_config} --with-tls"
   237     esac
   238     case "${CT_SHARED_LIBS}" in
   239         y) extra_config="${extra_config} --enable-shared";;
   240         *) extra_config="${extra_config} --disable-shared";;
   241     esac
   242     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
   243         y,) extra_config="${extra_config} --with-fp";;
   244         ,y) extra_config="${extra_config} --without-fp";;
   245     esac
   246     # Obviously, we want threads, as we come here only for NPTL
   247     extra_config="${extra_config} --with-__thread"
   248 
   249     addons_config="--enable-add-ons=$(do_libc_add_ons_list ,)"
   250     extra_config="${extra_config} ${addons_config}"
   251 
   252     # Add some default CC args
   253     glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
   254     glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
   255     # In case we're using a snapshot, fake a >=2.6 version.
   256     if [    "${CT_LIBC_V_LATEST}" = "y" \
   257          -o "${CT_LIBC_V_date}" = "y"   ]; then
   258         glibc_version_major=3
   259         glibc_version_minor=0
   260     fi
   261     if [    ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6    \
   262          -o ${glibc_version_major} -gt 2                                    ]; then
   263         # Don't use -pipe: configure chokes on it for glibc >= 2.6.
   264         CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
   265         extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
   266     else
   267         extra_cc_args="${CT_CFLAGS_FOR_HOST}"
   268     fi
   269     extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
   270 
   271     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
   272     CT_DoLog DEBUG "Using gcc for target    : '${cross_cc}'"
   273     CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
   274     CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
   275     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
   276 
   277     # Super-H really needs to set configparms as of gcc-3.4/glibc-2.3.2
   278     # note: this is awkward, doesn't work well if you need more than one
   279     # line in configparms
   280     echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
   281 
   282     echo "libc_cv_forced_unwind=yes" > config.cache
   283     echo "libc_cv_c_cleanup=yes" >> config.cache
   284 
   285     # Please see the comment for the configure step in do_libc().
   286 
   287     BUILD_CC=${CT_CC_NATIVE}                                        \
   288     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O "  \
   289     CC="${cross_cc} ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}"      \
   290     AR=${CT_TARGET}-ar                                              \
   291     RANLIB=${CT_TARGET}-ranlib                                      \
   292     CT_DoExecLog ALL                                                \
   293     "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure"                       \
   294         --prefix=/usr                                               \
   295         --build="${CT_UNIQ_BUILD}"                                  \
   296         --host=${CT_TARGET}                                         \
   297         --without-cvs                                               \
   298         --disable-profile                                           \
   299         --disable-debug                                             \
   300         --without-gd                                                \
   301         --with-headers="${CT_HEADERS_DIR}"                          \
   302         --cache-file=config.cache                                   \
   303         ${extra_config}                                             \
   304         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
   305 
   306 
   307     #TODO: should check whether slibdir has been set in configparms to */lib64
   308     #      and copy the startfiles into the appropriate libdir.
   309     CT_DoLog EXTRA "Building C library start files"
   310     CT_DoExecLog ALL make OBJDUMP_FOR_HOST="${CT_TARGET}-objdump" csu/subdir_lib
   311 
   312     CT_DoLog EXTRA "Installing C library start files"
   313     if [ "${CT_USE_SYSROOT}" = "y" ]; then
   314         CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/usr/lib/"
   315     else
   316         CT_DoExecLog ALL cp -fpv csu/crt[1in].o "${CT_SYSROOT_DIR}/lib/"
   317     fi
   318 
   319     CT_EndStep
   320 }
   321 
   322 # This function builds and install the full glibc
   323 do_libc() {
   324     CT_DoStep INFO "Installing C library"
   325 
   326     mkdir -p "${CT_BUILD_DIR}/build-libc"
   327     cd "${CT_BUILD_DIR}/build-libc"
   328 
   329     CT_DoLog EXTRA "Configuring C library"
   330 
   331     # Add some default glibc config options if not given by user.
   332     # We don't need to be conditional on wether the user did set different
   333     # values, as they CT_LIBC_GLIBC_EXTRA_CONFIG is passed after extra_config
   334 
   335     extra_config=
   336     min_kernel_config=""
   337     case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
   338         *enable-kernel*) ;;
   339         *)  if [    "${CT_LIBC_GLIBC_KERNEL_VERSION_AS_HEADERS}" = "y" \
   340                  -o "${CT_LIBC_GLIBC_USE_HEADERS_MIN_KERNEL}" = "y"    ]; then
   341                 min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
   342             fi
   343             ;;
   344     esac
   345     extra_config="${extra_config} ${min_kernel_config}"
   346 
   347     case "${CT_THREADS}" in
   348         nptl)           extra_config="${extra_config} --with-__thread --with-tls";;
   349         linuxthreads)   extra_config="${extra_config} --with-__thread --without-tls --without-nptl";;
   350         none)           extra_config="${extra_config} --without-__thread --without-nptl"
   351                         case "${CT_LIBC_GLIBC_EXTRA_CONFIG}" in
   352                             *-tls*) ;;
   353                             *) extra_config="${extra_config} --without-tls";;
   354                         esac
   355                         ;;
   356     esac
   357 
   358     case "${CT_SHARED_LIBS}" in
   359         y) extra_config="${extra_config} --enable-shared";;
   360         *) extra_config="${extra_config} --disable-shared";;
   361     esac
   362 
   363     case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
   364         y,) extra_config="${extra_config} --with-fp";;
   365         ,y) extra_config="${extra_config} --without-fp";;
   366     esac
   367 
   368     case "$(do_libc_add_ons_list ,)" in
   369         "") ;;
   370         *)  extra_config="${extra_config} --enable-add-ons=$(do_libc_add_ons_list ,)";;
   371     esac
   372 
   373     # Add some default CC args
   374     glibc_version_major=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^([^\.]+)\..*/\1/')
   375     glibc_version_minor=$(echo ${CT_LIBC_VERSION} |sed -r -e 's/^[^\.]+\.([^.]+).*/\1/')
   376     # In case we're using a snapshot, fake a >=2.6 version.
   377     if [    "${CT_LIBC_V_LATEST}" = "y" \
   378          -o "${CT_LIBC_V_date}" = "y"   ]; then
   379         glibc_version_major=3
   380         glibc_version_minor=0
   381     fi
   382     if [    ${glibc_version_major} -eq 2 -a ${glibc_version_minor} -ge 6    \
   383          -o ${glibc_version_major} -gt 2                                    ]; then
   384         # Don't use -pipe: configure chokes on it for glibc >= 2.6.
   385         CT_Test 'Removing "-pipe" for use with glibc>=2.6' "${CT_USE_PIPES}" = "y"
   386         extra_cc_args="${CT_CFLAGS_FOR_HOST/-pipe}"
   387     else
   388         extra_cc_args="${CT_CFLAGS_FOR_HOST}"
   389     fi
   390     extra_cc_args="${extra_cc_args} ${CT_ARCH_ENDIAN_OPT}"
   391 
   392     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
   393     CT_DoLog DEBUG "Using gcc for target    : '${cross_cc}'"
   394     CT_DoLog DEBUG "Configuring with addons : '$(do_libc_add_ons_list ,)'"
   395     CT_DoLog DEBUG "Extra config args passed: '${extra_config}'"
   396     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
   397 
   398     # sh3 and sh4 really need to set configparms as of gcc-3.4/glibc-2.3.2
   399     # note: this is awkward, doesn't work well if you need more than one line in configparms
   400     echo ${CT_LIBC_GLIBC_CONFIGPARMS} > configparms
   401 
   402     # For glibc 2.3.4 and later we need to set some autoconf cache
   403     # variables, because nptl/sysdeps/pthread/configure.in does not
   404     # work when cross-compiling.
   405     if [ "${CT_THREADS}" = "nptl" ]; then
   406         echo libc_cv_forced_unwind=yes
   407         echo libc_cv_c_cleanup=yes
   408     fi >config.cache
   409 
   410     # Configure with --prefix the way we want it on the target...
   411     # There are a whole lot of settings here.  You'll probably want
   412     # to read up on what they all mean, and customize a bit, possibly by setting GLIBC_EXTRA_CONFIG
   413     # Compare these options with the ones used when installing the glibc headers above - they're different.
   414     # Adding "--without-gd" option to avoid error "memusagestat.c:36:16: gd.h: No such file or directory" 
   415     # See also http://sources.redhat.com/ml/libc-alpha/2000-07/msg00024.html. 
   416     # Set BUILD_CC, or you won't be able to build datafiles
   417     # Set --build, else glibc-2.3.2 will think you're not cross-compiling, and try to run the test programs
   418 
   419     # OK. I'm fed up with those folks telling me what I should do.
   420     # I don't configure nptl? Well, maybe that's purposedly because
   421     # I don't want nptl! --disable-sanity-checks will shut up those
   422     # silly messages. GNU folks again, he?
   423 
   424     BUILD_CC=${CT_CC_NATIVE}                                        \
   425     CFLAGS="${CT_TARGET_CFLAGS} ${CT_LIBC_GLIBC_EXTRA_CFLAGS} -O"   \
   426     CC="${CT_TARGET}-gcc ${CT_LIBC_EXTRA_CC_ARGS} ${extra_cc_args}" \
   427     AR=${CT_TARGET}-ar                                              \
   428     RANLIB=${CT_TARGET}-ranlib                                      \
   429     CT_DoExecLog ALL                                                \
   430     "${CT_SRC_DIR}/${CT_LIBC_FILE}/configure"                       \
   431         --prefix=/usr                                               \
   432         --build=${CT_UNIQ_BUILD}                                    \
   433         --host=${CT_TARGET}                                         \
   434         --without-cvs                                               \
   435         --disable-profile                                           \
   436         --disable-debug                                             \
   437         --without-gd                                                \
   438         --disable-sanity-checks                                     \
   439         --cache-file=config.cache                                   \
   440         --with-headers="${CT_HEADERS_DIR}"                          \
   441         ${extra_config}                                             \
   442         ${CT_LIBC_GLIBC_EXTRA_CONFIG}
   443 
   444     if grep -l '^install-lib-all:' "${CT_SRC_DIR}/${CT_LIBC_FILE}/Makerules" > /dev/null; then
   445         # nptl-era glibc.
   446         # If the install-lib-all target (which is added by our make-install-lib-all.patch)
   447         # is present, it means we're building glibc-2.3.3 or later, and we can't
   448         # build programs yet, as they require libeh, which won't be installed
   449         # until full build of gcc
   450         # YEM-FIXME: This comment is misleading: latest glibc-s do not have the
   451         #            make-install-lib-all.patch applied, so do not pass through this
   452         #            part of the if statement; nonetheless, they do build, and
   453         #            the result is useable (maybe the dual-pass core gcc is
   454         #            responsible for this).
   455         GLIBC_INITIAL_BUILD_RULE=lib
   456         GLIBC_INITIAL_INSTALL_RULE="install-lib-all install-headers"
   457         GLIBC_INSTALL_APPS_LATER=yes
   458     else
   459         # classic glibc.  
   460         # We can build and install everything with the bootstrap compiler.
   461         # YEM-FIXME: See the above FIXME as well.
   462         GLIBC_INITIAL_BUILD_RULE=all
   463         GLIBC_INITIAL_INSTALL_RULE=install
   464         GLIBC_INSTALL_APPS_LATER=no
   465     fi
   466 
   467     # If this fails with an error like this:
   468     # ...  linux/autoconf.h: No such file or directory 
   469     # then you need to set the KERNELCONFIG variable to point to a .config file for this arch.
   470     # The following architectures are known to need kernel .config: alpha, arm, ia64, s390, sh, sparc
   471     # Note: LD and RANLIB needed by glibc-2.1.3's c_stub directory, at least on macosx
   472     # No need for PARALLELMFLAGS here, Makefile already reads this environment variable
   473     CT_DoLog EXTRA "Building C library"
   474     CT_DoExecLog ALL make LD=${CT_TARGET}-ld                        \
   475                            RANLIB=${CT_TARGET}-ranlib               \
   476                            OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"  \
   477                            ${GLIBC_INITIAL_BUILD_RULE}
   478 
   479     CT_DoLog EXTRA "Installing C library"
   480     CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}"          \
   481                           ${LIBC_SYSROOT_ARG}                       \
   482                           OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
   483                           ${GLIBC_INITIAL_INSTALL_RULE}
   484 
   485     # This doesn't seem to work when building a crosscompiler,
   486     # as it tries to execute localedef using the just-built ld.so!?
   487     #CT_DoLog EXTRA "Installing locales"
   488     #make localedata/install-locales install_root=${SYSROOT} 2>&1 |CT_DoLog ALL
   489 
   490     # Fix problems in linker scripts.
   491     #
   492     # 1. Remove absolute paths
   493     # Any file in a list of known suspects that isn't a symlink is assumed to be a linker script.
   494     # FIXME: test -h is not portable
   495     # FIXME: probably need to check more files than just these three...
   496     # Need to use sed instead of just assuming we know what's in libc.so because otherwise alpha breaks
   497     #
   498     # 2. Remove lines containing BUG per http://sources.redhat.com/ml/bug-glibc/2003-05/msg00055.html,
   499     # needed to fix gcc-3.2.3/glibc-2.3.2 targeting arm
   500     #
   501     # To make "strip *.so.*" not fail (ptxdist does this), rename to .so_orig rather than .so.orig
   502     CT_DoLog EXTRA "Fixing C library linker scripts"
   503     for file in libc.so libpthread.so libgcc_s.so; do
   504         for dir in lib lib64 usr/lib usr/lib64; do
   505             if [ -f "${CT_SYSROOT_DIR}/${dir}/${file}" -a ! -L ${CT_SYSROOT_DIR}/$lib/$file ]; then
   506                 CT_DoExecLog ALL cp -v "${CT_SYSROOT_DIR}/${dir}/${file}" "${CT_SYSROOT_DIR}/${dir}/${file}_orig"
   507                 CT_DoLog DEBUG "Fixing '${CT_SYS_ROOT_DIR}/${dir}/${file}'"
   508                 CT_DoExecLog ALL sed -i -r -e 's,/usr/lib/,,g;
   509                                                s,/usr/lib64/,,g;
   510                                                s,/lib/,,g;
   511                                                s,/lib64/,,g;
   512                                                /BUG in libc.scripts.output-format.sed/d' "${CT_SYSROOT_DIR}/${dir}/${file}"
   513             fi
   514         done
   515     done
   516 
   517     CT_EndStep
   518 }
   519 
   520 # This function finishes the glibc install
   521 do_libc_finish() {
   522     # Finally, build and install glibc programs, now that libeh (if any) is installed
   523     # Don't do this unless needed, 'cause it causes glibc-2.{1.3,2.2} to fail here with
   524     # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__deregister_frame_info'
   525     # .../gcc-3.4.1-glibc-2.1.3/build-glibc/libc.so.6: undefined reference to `__register_frame_info'
   526     [ "${GLIBC_INSTALL_APPS_LATER}" = "yes" ] || return 0
   527 
   528     CT_DoStep INFO "Finishing C library"
   529 
   530     cd "${CT_BUILD_DIR}/build-libc"
   531 
   532     CT_DoLog EXTRA "Re-building C library"
   533     CT_DoExecLog ALL make LD=${CT_TARGET}-ld RANLIB=${CT_TARGET}-ranlib
   534 
   535     CT_DoLog EXTRA "Installing missing C library components"
   536     # note: should do full install and then fix linker scripts, but this is faster
   537     for t in bin rootsbin sbin data others; do
   538         CT_DoExecLog ALL make install_root="${CT_SYSROOT_DIR}"          \
   539                               ${LIBC_SYSROOT_ARG}                       \
   540                               OBJDUMP_FOR_HOST="${CT_TARGET}-objdump"   \
   541                               install-${t}
   542     done
   543 
   544     CT_EndStep
   545 }
   546 
   547 # Build up the addons list, separated with $1
   548 do_libc_add_ons_list() {
   549     local sep="$1"
   550     local addons_list=$(echo "${CT_LIBC_ADDONS_LIST//,/${sep}}" |tr -s ,)
   551     case "${CT_THREADS}" in
   552         none)   ;;
   553         *)      addons_list="${addons_list}${sep}${CT_THREADS}";;
   554     esac
   555     [ "${CT_LIBC_GLIBC_USE_PORTS}" = "y" ] && addons_list="${addons_list}${sep}ports"
   556     addons_list="${addons_list%%${sep}}"
   557     echo "${addons_list##${sep}}"
   558 }
   559