LinuxQuestions.org - gmon.out: No such file or directory

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gmon.out: No such file or directory

wonder@wonder-VirtualBox:~/layer$ ls
built-in.o gprof.output hello.mod.c main.c modules.order tempfile
cli.c hello.c hello.mod.o main.c~ Module.symvers
cli.c~ hello.c~ hello.o Makefile snull.h
core hello.ko main Makefile~ sysdep.h
wonder@wonder-VirtualBox:~/layer$ sudo gprof ./hello.o

gmon.out: No such file or directory

how to gprofile module

Code:

ccflags-y += -pg # enable profiling

obj-m += hello.o



hello.o:

    make -o hello -C /usr/src/linux-headers-3.8.0-29-generic -C /usr/include/i386-linux-gnu/sys M=$(PWD) modules



clean:

    make -C /usr/src/linux-headers-3.8.0-29-generic -C /usr/include/i386-linux-gnu/sys M=$(PWD) clean

I think maybe some line breaks got lost while posting.

Also, there is no question here.

question is how to gprofile module