diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2015-01-09 10:53:21 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2015-01-09 10:55:10 +0100 |
| commit | b9dfe0bed999d23ee8838d389637dd8aef83fafa (patch) | |
| tree | 1e1761aa65759226ca26fe931b1b48de4cf65af9 /kernel/futex_compat.c | |
| parent | 83ac237a950e130c974d0170cce30891dcd8f250 (diff) | |
livepatch: handle ancient compilers with more grace
We are aborting a build in case when gcc doesn't support fentry on x86_64
(regs->ip modification can't really reliably work with mcount).
This however breaks allmodconfig for people with older gccs that don't
support -mfentry.
Turn the build-time failure into runtime failure, resulting in the whole
infrastructure not being initialized if CC_USING_FENTRY is unset.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Diffstat (limited to 'kernel/futex_compat.c')
0 files changed, 0 insertions, 0 deletions