scripts/build/debug/500-strace.sh
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 1901 bdb3a98e064b
child 2867 ef6dad58ab1c
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 # Build script for strace
     2 
     3 do_debug_strace_get() {
     4     CT_GetFile "strace-${CT_STRACE_VERSION}" http://mesh.dl.sourceforge.net/sourceforge/strace/
     5     # Downloading from sourceforge leaves garbage, cleanup
     6     CT_DoExecLog ALL rm -f "${CT_TARBALLS_DIR}/showfiles.php"*
     7 }
     8 
     9 do_debug_strace_extract() {
    10     CT_Extract "strace-${CT_STRACE_VERSION}"
    11     CT_Patch "strace" "${CT_STRACE_VERSION}"
    12 }
    13 
    14 do_debug_strace_build() {
    15     CT_DoStep INFO "Installing strace"
    16     mkdir -p "${CT_BUILD_DIR}/build-strace"
    17     CT_Pushd "${CT_BUILD_DIR}/build-strace"
    18 
    19     CT_DoLog EXTRA "Configuring strace"
    20     CT_DoExecLog CFG                                        \
    21     "${CT_SRC_DIR}/strace-${CT_STRACE_VERSION}/configure"   \
    22         --build=${CT_BUILD}                                 \
    23         --host=${CT_TARGET}                                 \
    24         --prefix=/usr
    25 
    26     CT_DoLog EXTRA "Building strace"
    27     CT_DoExecLog ALL make
    28 
    29     CT_DoLog EXTRA "Installing strace"
    30     CT_DoExecLog ALL make DESTDIR="${CT_DEBUGROOT_DIR}" install
    31 
    32     CT_Popd
    33     CT_EndStep
    34 }
    35