do_build: make more posix shell compliant

diff --git a/do_build b/do_build
index 84b225cc27dbe80e23aede60c8bf9fb63cc4be96..51bea9c34c0b019272cdd6d4a6333953989710fd 100755 (executable)
--- a/do_build
+++ b/do_build
@@ -35,6 +35,7 @@ $cmd <<-EOF
        KCONFIG_ALLCONFIG=\$e cross -n -N -a x86_64 -c $gcc_version O=\$d allmodconfig || exit 1
        echo "Forking x86 build ..."
        /usr/bin/time cross -n -N -a x86_64 -c $gcc_version O=\$d -j$j_factor -s > \$log_x86 2>&1 &
+       x86_64_pid=\$!
 
        echo Building: powerpc ppc64_defconfig
        d="$bparent/powerpc_ppc64_defconfig"
@@ -43,6 +44,7 @@ $cmd <<-EOF
        cross -n -N -a powerpc64 -k powerpc -c $gcc_version O=\$d ppc64_defconfig || exit 1
        echo "Forking powerpc build ..."
        /usr/bin/time cross -n -N -a powerpc64 -k powerpc -c $gcc_version O=\$d -j$j_factor -s > \$log_ppc 2>&1 &
+       ppc64_pid=\$!
 
        echo Building: arm multi_v7_defconfig
        d="$bparent/arm_multi_v7_defconfig"
@@ -51,6 +53,7 @@ $cmd <<-EOF
        cross -n -N -a arm -c $gcc_version O=\$d multi_v7_defconfig || exit 1
        echo "Forking arm build ..."
        /usr/bin/time cross -n -N -a arm -c $gcc_version O=\$d -j$j_factor -s > \$log_arm 2>&1 &
+       arm_pid=\$!
 
        echo Building: perf
        d="$bparent/perf"
@@ -58,8 +61,9 @@ $cmd <<-EOF
        log_perf=\$d.log
        echo "Forking perf build ..."
        /usr/bin/time make -s -C tools/perf JOBS=$j_factor O=\$d > \$log_perf 2>&1 &
+       perf_pid=\$!
 
-       wait %4
+       wait \$perf_pid
        rc=\$?
 
        if [ \$rc -ne 0 ]; then
@@ -67,9 +71,9 @@ $cmd <<-EOF
                echo "ERROR: perf build failed - log follows"
                echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
                cat \$log_perf
-               kill %1
-               kill %2
-               kill %3
+               kill \$x86_64_pid
+               kill \$ppc64_pid
+               kill \$arm_pid
                killall make
                rm .scmversion
                exit 1
@@ -80,7 +84,7 @@ $cmd <<-EOF
                cat \$log_perf
        fi
 
-       wait %3
+       wait \$arm_pid
        rc=\$?
 
        if [ \$rc -ne 0 ]; then
@@ -88,8 +92,8 @@ $cmd <<-EOF
                echo "ERROR: arm multi_v7_defconfig build failed - log follows"
                echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
                cat \$log_arm
-               kill %1
-               kill %2
+               kill \$x86_64_pid
+               kill \$ppd64_pid
                killall make
                rm .scmversion
                exit 1
@@ -100,7 +104,7 @@ $cmd <<-EOF
                cat \$log_arm
        fi
 
-       wait %2
+       wait \$ppc64_pid
        rc=\$?
 
        if [ \$rc -ne 0 ]; then
@@ -108,7 +112,7 @@ $cmd <<-EOF
                echo "ERROR: powerpc ppc64_defconfig build failed - log follows"
                echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
                cat \$log_ppc
-               kill %1
+               kill \$x86_64_pid
                killall make
                rm .scmversion
                exit 1
@@ -119,7 +123,7 @@ $cmd <<-EOF
                cat \$log_ppc
        fi
 
-       wait %1
+       wait \$x86_64_pid
        rc=\$?
 
        if [ \$rc -ne 0 ]; then