| #! /bin/sh |
| # |
| # Copyright (C) 2016 Red Hat, Inc. |
| # |
| # Author: Paolo Bonzini <pbonzini@redhat.com> |
| # |
| # Print statistics about header file inclusions. |
| # |
| # The script has two modes of execution: |
| # |
| # 1) if invoked with a path on the command line (possibly |
| # preceded by a "--" argument), it will run the analysis on |
| # an existing build directory |
| # |
| # 2) otherwise, it will configure and builds QEMU itself in a |
| # "+build" subdirectory which is left around when the script |
| # exits. In this case the command line is passed directly to |
| # "make" (typically used for a "-j" argument suitable for your |
| # system). |
| # |
| # Inspired by a post by Markus Armbruster. |
| |
| case "x$1" in |
| x--) |
| shift |
| cd "$1" || exit $? |
| ;; |
| x-* | x) |
| mkdir -p +build |
| cd +build |
| test -f Makefile && make distclean |
| ../configure |
| make "$@" |
| ;; |
| *) |
| cd "$1" || exit $? |
| esac |
| |
| QEMU_CFLAGS=$(sed -n s/^QEMU_CFLAGS=//p config-host.mak) |
| QEMU_INCLUDES=$(sed -n s/^QEMU_INCLUDES=//p config-host.mak | \ |
| sed 's/$(SRC_PATH)/../g' ) |
| CFLAGS=$(sed -n s/^CFLAGS=//p config-host.mak) |
| |
| grep_include() { |
| find . -name "*.d" -exec grep -l "$@" {} + | wc -l |
| } |
| |
| echo Found $(find . -name "*.d" | wc -l) object files |
| echo $(grep_include -F 'include/qemu-common.h') files include qemu-common.h |
| echo $(grep_include -F 'hw/hw.h') files include hw/hw.h |
| echo $(grep_include 'target-[a-z0-9]*/cpu\.h') files include cpu.h |
| echo $(grep_include -F 'qapi-types.h') files include qapi-types.h |
| echo $(grep_include -F 'trace/generated-tracers.h') files include generated-tracers.h |
| echo $(grep_include -F 'qapi/error.h') files include qapi/error.h |
| echo $(grep_include -F 'qom/object.h') files include qom/object.h |
| echo $(grep_include -F 'block/aio.h') files include block/aio.h |
| echo $(grep_include -F 'exec/memory.h') files include exec/memory.h |
| echo $(grep_include -F 'fpu/softfloat.h') files include fpu/softfloat.h |
| echo $(grep_include -F 'qemu/bswap.h') files include qemu/bswap.h |
| echo |
| |
| awk1=' |
| /^# / { file = $3;next } |
| NR>1 { bytes[file]+=length()+1; lines[file]++ } |
| END { for(i in lines) print i,lines[i],bytes[i] }' |
| |
| awk2=' |
| {tot_l+=$2;tot_b+=$3;tot_f++} |
| /\/usr.*\/glib/ {glib_l+=$2;glib_b+=$3;glib_f++;next} |
| /\/usr/ {sys_l+=$2;sys_b+=$3;sys_f++;next} |
| {qemu_l+=$2;qemu_b+=$3;qemu_f++;next} |
| END { |
| printf "%s\t %s\t %s\t %s\n", "lines", "bytes", "files", "source" |
| printf "%s\t %s\t %s\t %s\n", qemu_l, qemu_b, qemu_f, "QEMU" |
| printf "%s\t %s\t %s\t %s\n", sys_l, sys_b, sys_f, "system" |
| printf "%s\t %s\t %s\t %s\n", glib_l, glib_b, glib_f, "glib" |
| printf "%s\t %s\t %s\t %s\n", tot_l, tot_b, tot_f, "total" |
| }' |
| |
| analyze() { |
| cc $QEMU_CFLAGS $QEMU_INCLUDES $CFLAGS -E -o - "$@" | \ |
| awk "$awk1" | awk "$awk2" |
| echo |
| } |
| |
| echo osdep.h: |
| analyze ../include/qemu/osdep.h |
| |
| echo qemu-common.h: |
| analyze -include ../include/qemu/osdep.h ../include/qemu-common.h |
| |
| echo hw/hw.h: |
| analyze -include ../include/qemu/osdep.h ../include/hw/hw.h |
| |
| echo trace/generated-tracers.h: |
| analyze -include ../include/qemu/osdep.h trace/generated-tracers.h |
| |
| echo target-i386/cpu.h: |
| analyze -DNEED_CPU_H -I../target-i386 -Ii386-softmmu -include ../include/qemu/osdep.h ../target-i386/cpu.h |
| |
| echo hw/hw.h + NEED_CPU_H: |
| analyze -DNEED_CPU_H -I../target-i386 -Ii386-softmmu -include ../include/qemu/osdep.h ../include/hw/hw.h |