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Groups > linux.kernel > #1349258

[PATCH] tools: Support relative directory path for 'O='

From Josh Poimboeuf <jpoimboe@redhat.com>
Newsgroups linux.kernel
Subject [PATCH] tools: Support relative directory path for 'O='
Date 2016-03-03 16:00 +0100
Message-ID <r8CTo-8sH-27@gated-at.bofh.it> (permalink)
References <r8CA2-8lg-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Running "make O=foo" (with a relative directory path) fails with:

  scripts/Makefile.include:3: *** O=foo does not exist.  Stop.
  /home/jpoimboe/git/linux/Makefile:1547: recipe for target 'tools/objtool' failed

The tools Makefile gets confused by the relative path and tries to build
objtool in tools/foo.  Convert the output directory to an absolute path
before passing it to the tools Makefile.

Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 3100e74..5b3723c 100644
--- a/Makefile
+++ b/Makefile
@@ -1541,11 +1541,11 @@ image_name:
 # Clear a bunch of variables before executing the submake
 tools/: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
 
 tools/%: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(O) subdir=tools -C $(src)/tools/ $*
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
 
 # Single targets
 # ---------------------------------------------------------------------------
-- 
2.4.3

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Thread

linux-next: Tree for Mar 3 Stephen Rothwell <sfr@canb.auug.org.au> - 2016-03-03 07:10 +0100
  Re: linux-next: Tree for Mar 3 Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-03-03 12:10 +0100
    Re: linux-next: Tree for Mar 3 Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-03-03 12:20 +0100
      Re: linux-next: Tree for Mar 3 Josh Poimboeuf <jpoimboe@redhat.com> - 2016-03-03 15:40 +0100
        [PATCH] tools: Support relative directory path for 'O=' Josh Poimboeuf <jpoimboe@redhat.com> - 2016-03-03 16:00 +0100
          [tip:core/objtool] tools: Support relative directory path for 'O=' tip-bot for Josh Poimboeuf <tipbot@zytor.com> - 2016-03-03 18:10 +0100
        [PATCH] objtool: Warn if libelf is missing Josh Poimboeuf <jpoimboe@redhat.com> - 2016-03-03 18:50 +0100
    Re: linux-next: Tree for Mar 3 Guenter Roeck <linux@roeck-us.net> - 2016-03-03 13:10 +0100

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