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SubjectRe: [PATCH 11/11] liblockdep: preload helper
Date
Hi Sasha,

On Wed, 6 Feb 2013 17:11:34 -0500, Sasha Levin wrote:
> This is a simple wrapper to make using liblockdep on existing applications
> much easier.
>
> After running 'make && make install', it becomes quite simple to test things
> with liblockdep. For example, to try it on perf:
>
> liblockdep perf

Shouldn't it be 'lockdep perf ...'?

Thanks,
Namhyung

>
> No other integration required.
>
> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
> ---
> tools/lib/lockdep/Makefile | 12 ++++++++----
> tools/lib/lockdep/lockdep | 3 +++
> 2 files changed, 11 insertions(+), 4 deletions(-)
> create mode 100755 tools/lib/lockdep/lockdep
>
> diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
> index 245f8ba..b22122f 100644
> --- a/tools/lib/lockdep/Makefile
> +++ b/tools/lib/lockdep/Makefile
> @@ -34,7 +34,9 @@ DESTDIR ?=
> DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
>
> prefix ?= /usr/local
> -bindir_relative = lib
> +libdir_relative = lib
> +libdir = $(prefix)/$(libdir_relative)
> +bindir_relative = bin
> bindir = $(prefix)/$(bindir_relative)
>
> export DESTDIR DESTDIR_SQ INSTALL
> @@ -90,13 +92,14 @@ objtree := $(CURDIR)
> src := $(srctree)
> obj := $(objtree)
>
> -export prefix bindir src obj
> +export prefix libdir bindir src obj
>
> # Shell quotes
> +libdir_SQ = $(subst ','\'',$(libdir))
> bindir_SQ = $(subst ','\'',$(bindir))
> -bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
>
> LIB_FILE = liblockdep.a liblockdep.so
> +BIN_FILE = lockdep
>
> CONFIG_INCLUDES =
> CONFIG_LIBS =
> @@ -229,7 +232,8 @@ define do_install
> endef
>
> install_lib: all_cmd
> - $(Q)$(call do_install,$(LIB_FILE),$(bindir_SQ))
> + $(Q)$(call do_install,$(LIB_FILE),$(libdir_SQ))
> + $(Q)$(call do_install,$(BIN_FILE),$(bindir_SQ))
>
> install: install_lib
>
> diff --git a/tools/lib/lockdep/lockdep b/tools/lib/lockdep/lockdep
> new file mode 100755
> index 0000000..616bf9a
> --- /dev/null
> +++ b/tools/lib/lockdep/lockdep
> @@ -0,0 +1,3 @@
> +#! /bin/bash
> +
> +LD_PRELOAD=liblockdep.so "$@"


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