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| author | Peter Zijlstra <peterz@infradead.org> | 2017-03-30 17:49:27 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-04-03 10:22:40 +0200 |
| commit | b5effd3815ccbe3df1a015a6d67d8a24a27813d5 (patch) | |
| tree | 297de309e13268cd225e688b1a0d35e97869ae74 /arch/x86/kernel/vmlinux.lds.S | |
| parent | 19d436268dde95389c616bb3819da73f0a8b28a8 (diff) | |
| download | talos-op-linux-b5effd3815ccbe3df1a015a6d67d8a24a27813d5.tar.gz talos-op-linux-b5effd3815ccbe3df1a015a6d67d8a24a27813d5.zip | |
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/x86/kernel/vmlinux.lds.S')
| -rw-r--r-- | arch/x86/kernel/vmlinux.lds.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index c74ae9ce8dc4..c8a3b61be0aa 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -146,6 +146,7 @@ SECTIONS _edata = .; } :data + BUG_TABLE . = ALIGN(PAGE_SIZE); __vvar_page = .; |
