scripts/build/binutils/sstrip.sh
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 1858 43d14939d956
child 2926 d304c8a7bfa8
permissions -rw-r--r--
config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
     1 # This will build and install sstrip to run on host and sstrip target files
     2 
     3 do_sstrip_get() { :; }
     4 do_sstrip_extract() { :; }
     5 do_sstrip() { :; }
     6 
     7 if [ "${CT_SSTRIP}" = "y" ]; then
     8     do_sstrip_get() {
     9         CT_GetFile sstrip .c http://git.buildroot.net/buildroot/plain/toolchain/sstrip
    10     }
    11 
    12     do_sstrip_extract() {
    13         # We leave the sstrip maintenance to the buildroot people:
    14         # -> any fix-up goes directly there
    15         # -> we don't have patches for it
    16         # -> we don't need to patch it
    17         # -> just create a directory in src/, and copy it there.
    18         CT_DoExecLog DEBUG mkdir -p "${CT_SRC_DIR}/sstrip"
    19         CT_DoExecLog DEBUG cp -v "${CT_TARBALLS_DIR}/sstrip.c" "${CT_SRC_DIR}/sstrip"
    20     }
    21 
    22     do_sstrip() {
    23         local sstrip_cflags
    24         CT_DoStep INFO "Installing sstrip"
    25         mkdir -p "${CT_BUILD_DIR}/build-sstrip"
    26         cd "${CT_BUILD_DIR}/build-sstrip"
    27 
    28         if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
    29             sstrip_cflags="-static"
    30         fi
    31 
    32         CT_DoLog EXTRA "Building sstrip"
    33         CT_DoExecLog ALL "${CT_HOST}-gcc" -Wall ${sstrip_cflags} -o sstrip "${CT_SRC_DIR}/sstrip/sstrip.c"
    34 
    35         CT_DoLog EXTRA "Installing sstrip"
    36         CT_DoExecLog ALL install -m 755 sstrip "${CT_PREFIX_DIR}/bin/${CT_TARGET}-sstrip"
    37 
    38         CT_EndStep
    39     }
    40 fi