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Re: [Qemu-devel] [PATCH v2] Add a stp file for usage from build director


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH v2] Add a stp file for usage from build directory
Date: Wed, 29 May 2013 08:29:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6

Il 29/05/2013 02:28, Alon Levy ha scritto:
> For systemtap the location of the process being tapped is crucial, as a
> result the existing stp file requires installation for use.
> 
> There are now two files:
> $(TARGET_DIR)/$(QEMU_PROG).stp-installed: copied to $(tapdir)/$(QEMU_PROG).stp
> $(TARGET_DIR)/$(QEMU_PROG).stp: pointing to the built binary, usable
>                                 without installation
> 
> To use:
> stap -I $(TARGET_DIR) ...

Looks good, thanks!

Paolo

> Signed-off-by: Alon Levy <address@hidden>
> ---
>  Makefile.target | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/Makefile.target b/Makefile.target
> index ce4391f..a44c8ed 100644
> --- a/Makefile.target
> +++ b/Makefile.target
> @@ -35,7 +35,7 @@ config-target.h: config-target.h-timestamp
>  config-target.h-timestamp: config-target.mak
>  
>  ifdef CONFIG_TRACE_SYSTEMTAP
> -stap: $(QEMU_PROG).stp
> +stap: $(QEMU_PROG).stp-installed $(QEMU_PROG).stp
>  
>  ifdef CONFIG_USER_ONLY
>  TARGET_TYPE=user
> @@ -43,14 +43,24 @@ else
>  TARGET_TYPE=system
>  endif
>  
> -$(QEMU_PROG).stp: $(SRC_PATH)/trace-events
> +$(QEMU_PROG).stp-installed: $(SRC_PATH)/trace-events
>       $(call quiet-command,$(TRACETOOL) \
>               --format=stap \
>               --backend=$(TRACE_BACKEND) \
>               --binary=$(bindir)/$(QEMU_PROG) \
>               --target-arch=$(TARGET_ARCH) \
>               --target-type=$(TARGET_TYPE) \
> +             < $< > $@,"  GEN   $(TARGET_DIR)$(QEMU_PROG).stp-installed")
> +
> +$(QEMU_PROG).stp: $(SRC_PATH)/trace-events
> +     $(call quiet-command,$(TRACETOOL) \
> +             --format=stap \
> +             --backend=$(TRACE_BACKEND) \
> +             --binary=$(realpath .)/$(QEMU_PROG) \
> +             --target-arch=$(TARGET_ARCH) \
> +             --target-type=$(TARGET_TYPE) \
>               < $< > $@,"  GEN   $(TARGET_DIR)$(QEMU_PROG).stp")
> +
>  else
>  stap:
>  endif
> @@ -186,7 +196,7 @@ endif
>  endif
>  ifdef CONFIG_TRACE_SYSTEMTAP
>       $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset"
> -     $(INSTALL_DATA) $(QEMU_PROG).stp 
> "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset"
> +     $(INSTALL_DATA) $(QEMU_PROG).stp-installed 
> "$(DESTDIR)$(qemu_datadir)/../systemtap/tapset/$(QEMU_PROG).stp"
>  endif
>  
>  GENERATED_HEADERS += config-target.h
> 
s



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