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authorPeter Zijlstra <peterz@infradead.org>2017-03-30 17:49:27 +0200
committerIngo Molnar <mingo@kernel.org>2017-04-03 10:22:40 +0200
commitb5effd3815ccbe3df1a015a6d67d8a24a27813d5 (patch)
tree297de309e13268cd225e688b1a0d35e97869ae74 /arch/blackfin
parent19d436268dde95389c616bb3819da73f0a8b28a8 (diff)
debug: Fix __bug_table[] in arch linker scripts
The kbuild test robot reported this build failure on a number of architectures: > make.cross ARCH=arm > lib/lib.a(bug.o): In function `find_bug': > >> lib/bug.c:135: undefined reference to `__start___bug_table' > >> lib/bug.c:135: undefined reference to `__stop___bug_table' Caused by: 19d436268dde ("debug: Add _ONCE() logic to report_bug()") Which moved the BUG_TABLE from RO_DATA_SECTION() to RW_DATA_SECTION(), but a number of architectures don't use RW_DATA_SECTION(), so they ended up with no __bug_table[] ... Ideally all those would use RW_DATA_SECTION() in their linker scripts, but that's for another day. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kbuild test robot <fengguang.wu@intel.com> Cc: kbuild-all@01.org Cc: tipbuild@zytor.com Link: http://lkml.kernel.org/r/20170330154927.o6qmgfp4bdhrajbm@hirez.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 68069a120055..334ef8139b35 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -115,6 +115,8 @@ SECTIONS
__data_lma = LOADADDR(.data);
__data_len = SIZEOF(.data);
+ BUG_TABLE
+
/* The init section should be last, so when we free it, it goes into
* the general memory pool, and (hopefully) will decrease fragmentation
* a tiny bit. The init section has a _requirement_ that it be