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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2017-03-01 00:05:04 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-01 14:20:18 +0100 |
| commit | 55149d06534ae2a7ba5f7a078353deb89b3fe891 (patch) | |
| tree | 790133e15f28b26db448d1157b4953e881ef2fa0 /tools | |
| parent | 2d6be4abf514fc26c83d239c7f31da1f95e4a31d (diff) | |
objtool, compiler.h: Fix __unreachable section relocation size
Linus reported the following commit broke module loading on his laptop:
d1091c7fa3d5 ("objtool: Improve detection of BUG() and other dead ends")
It showed errors like the following:
module: overflow in relocation type 10 val ffffffffc02afc81
module: 'nvme' likely not compiled with -mcmodel=kernel
The problem is that the __unreachable section addresses are stored using
the '.long' asm directive, which isn't big enough for .text section
kernel addresses. Use relative addresses instead:
".long %c0b - .\t\n"
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: d1091c7fa3d5 ("objtool: Improve detection of BUG() and other dead ends")
Link: http://lkml.kernel.org/r/20170301060504.oltm3iws6fmubnom@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions