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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2021-01-22 00:29:29 +0300 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@redhat.com> | 2021-01-26 20:33:02 +0300 |
| commit | f4b4bc10b0b85ec66f1a9bf5dddf475e6695b6d2 (patch) | |
| tree | ffaa44223a525cff4da9616f8583340ae9e75786 /net/unix/af_unix.c | |
| parent | cde07a4e4434ddfb9b1616ac971edf6d66329804 (diff) | |
| download | linux-f4b4bc10b0b85ec66f1a9bf5dddf475e6695b6d2.tar.xz | |
x86/xen: Support objtool vmlinux.o validation in xen-head.S
The Xen hypercall page is filled with zeros, causing objtool to fall
through all the empty hypercall functions until it reaches a real
function, resulting in a stack state mismatch.
The build-time contents of the hypercall page don't matter because the
page gets rewritten by the hypervisor. Make it more palatable to
objtool by making each hypervisor function a true empty function, with
nops and a return.
Cc: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/0883bde1d7a1fb3b6a4c952bc0200e873752f609.1611263462.git.jpoimboe@redhat.com
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions