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Revision 978fae9f

ID978fae9f1ac47e22890a1bd9ebf5fa46fe8b6ef7

Added by Peter Maydell over 10 years ago

linux-user/signal.c: Avoid using uninitialized data in ARM sigreturn

Rephrase code used in ARM sigreturn functions to avoid using
uninitialized variables. This fixes one genuine problem ('frame'
would not be initialized if we took the error-exit path because
our stackpointer was misaligned) and one which is clang being
alarmist (frame_addr wouldn't be initialized, though this is
harmless since unlock_user_struct ignores its second argument
in these cases; however since we don't generally make use of
this not-really-documented effect it's better avoided).

Signed-off-by: Peter Maydell <>
Message-id:
Signed-off-by: Anthony Liguori <>

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