analyze-inclusions (3132B)
1 #! /bin/sh 2 # 3 # Copyright (C) 2016 Red Hat, Inc. 4 # 5 # Author: Paolo Bonzini <pbonzini@redhat.com> 6 # 7 # Print statistics about header file inclusions. 8 # 9 # The script has two modes of execution: 10 # 11 # 1) if invoked with a path on the command line (possibly 12 # preceded by a "--" argument), it will run the analysis on 13 # an existing build directory 14 # 15 # 2) otherwise, it will configure and builds QEMU itself in a 16 # "+build" subdirectory which is left around when the script 17 # exits. In this case the command line is passed directly to 18 # "make" (typically used for a "-j" argument suitable for your 19 # system). 20 # 21 # Inspired by a post by Markus Armbruster. 22 23 case "x$1" in 24 x--) 25 shift 26 cd "$1" || exit $? 27 ;; 28 x-* | x) 29 mkdir -p +build 30 cd +build 31 test -f Makefile && make distclean 32 ../configure 33 make "$@" 34 ;; 35 *) 36 cd "$1" || exit $? 37 esac 38 39 QEMU_CFLAGS=$(sed -n s/^QEMU_CFLAGS=//p config-host.mak) 40 QEMU_INCLUDES=$(sed -n s/^QEMU_INCLUDES=//p config-host.mak | \ 41 sed 's/$(SRC_PATH)/../g' ) 42 CFLAGS=$(sed -n s/^CFLAGS=//p config-host.mak) 43 44 grep_include() { 45 find . -name "*.d" -exec grep -l "$@" {} + | wc -l 46 } 47 48 echo Found $(find . -name "*.d" | wc -l) object files 49 echo $(grep_include -F 'hw/hw.h') files include hw/hw.h 50 echo $(grep_include 'target/[a-z0-9]*/cpu\.h') files include cpu.h 51 echo $(grep_include -F 'qapi-types.h') files include qapi-types.h 52 echo $(grep_include -F 'trace/generated-tracers.h') files include generated-tracers.h 53 echo $(grep_include -F 'qapi/error.h') files include qapi/error.h 54 echo $(grep_include -F 'qom/object.h') files include qom/object.h 55 echo $(grep_include -F 'block/aio.h') files include block/aio.h 56 echo $(grep_include -F 'exec/memory.h') files include exec/memory.h 57 echo $(grep_include -F 'fpu/softfloat.h') files include fpu/softfloat.h 58 echo $(grep_include -F 'qemu/bswap.h') files include qemu/bswap.h 59 echo 60 61 awk1=' 62 /^# / { file = $3;next } 63 NR>1 { bytes[file]+=length()+1; lines[file]++ } 64 END { for(i in lines) print i,lines[i],bytes[i] }' 65 66 awk2=' 67 {tot_l+=$2;tot_b+=$3;tot_f++} 68 /\/usr.*\/glib/ {glib_l+=$2;glib_b+=$3;glib_f++;next} 69 /\/usr/ {sys_l+=$2;sys_b+=$3;sys_f++;next} 70 {qemu_l+=$2;qemu_b+=$3;qemu_f++;next} 71 END { 72 printf "%s\t %s\t %s\t %s\n", "lines", "bytes", "files", "source" 73 printf "%s\t %s\t %s\t %s\n", qemu_l, qemu_b, qemu_f, "QEMU" 74 printf "%s\t %s\t %s\t %s\n", sys_l, sys_b, sys_f, "system" 75 printf "%s\t %s\t %s\t %s\n", glib_l, glib_b, glib_f, "glib" 76 printf "%s\t %s\t %s\t %s\n", tot_l, tot_b, tot_f, "total" 77 }' 78 79 analyze() { 80 cc $QEMU_CFLAGS $QEMU_INCLUDES $CFLAGS -E -o - "$@" | \ 81 awk "$awk1" | awk "$awk2" 82 echo 83 } 84 85 echo osdep.h: 86 analyze ../include/qemu/osdep.h 87 88 echo hw/hw.h: 89 analyze -include ../include/qemu/osdep.h ../include/hw/hw.h 90 91 echo trace/generated-tracers.h: 92 analyze -include ../include/qemu/osdep.h trace/generated-tracers.h 93 94 echo target/i386/cpu.h: 95 analyze -DNEED_CPU_H -I../target/i386 -Ii386-softmmu -include ../include/qemu/osdep.h ../target/i386/cpu.h 96 97 echo hw/hw.h + NEED_CPU_H: 98 analyze -DNEED_CPU_H -I../target/i386 -Ii386-softmmu -include ../include/qemu/osdep.h ../include/hw/hw.h