From b5effd3815ccbe3df1a015a6d67d8a24a27813d5 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 30 Mar 2017 17:49:27 +0200 Subject: 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 Cc: Linus Torvalds Cc: Thomas Gleixner Cc: kbuild test robot 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 --- arch/cris/kernel/vmlinux.lds.S | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/cris') diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S index 979586261520..867f237d7c5c 100644 --- a/arch/cris/kernel/vmlinux.lds.S +++ b/arch/cris/kernel/vmlinux.lds.S @@ -68,6 +68,8 @@ SECTIONS __edata = . ; /* End of data section. */ _edata = . ; + BUG_TABLE + INIT_TASK_DATA_SECTION(PAGE_SIZE) . = ALIGN(PAGE_SIZE); /* Init code and data. */ -- cgit