[PATCH for v4.9 LTS 83/87] lib/Kconfig.debug: fix frv build failure

From: Levin, Alexander (Sasha Levin)
Date: Fri Jul 14 2017 - 21:32:41 EST

From: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>

[ Upstream commit da0510c47519fe0999cffe316e1d370e29f952be ]

The build of frv allmodconfig was failing with the errors like:

/tmp/cc0JSPc3.s: Assembler messages:
/tmp/cc0JSPc3.s:1839: Error: symbol `.LSLT0' is already defined
/tmp/cc0JSPc3.s:1842: Error: symbol `.LASLTP0' is already defined
/tmp/cc0JSPc3.s:1969: Error: symbol `.LELTP0' is already defined
/tmp/cc0JSPc3.s:1970: Error: symbol `.LELT0' is already defined

Commit 866ced950bcd ("kbuild: Support split debug info v4") introduced
splitting the debug info and keeping that in a separate file. Somehow,
the frv-linux gcc did not like that and I am guessing that instead of
splitting it started copying. The first report about this is at:


I will try and see if this can work with frv and if still fails I will
open a bug report with gcc. But meanwhile this is the easiest option to
solve build failure of frv.

Fixes: 866ced950bcd ("kbuild: Support split debug info v4")
Link: http://lkml.kernel.org/r/1482062348-5352-1-git-send-email-sudipm.mukherjee@xxxxxxxxx
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
Reported-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
lib/Kconfig.debug | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a6c8db1d62f6..f60e67217f18 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -145,7 +145,7 @@ config DEBUG_INFO_REDUCED

bool "Produce split debuginfo in .dwo files"
- depends on DEBUG_INFO
+ depends on DEBUG_INFO && !FRV
Generate debug info into separate .dwo files. This significantly
reduces the build directory size for builds with DEBUG_INFO,