linux

iv/linux

History

Eric W. Biederman c7fff9288d signal: Remove the generic __ARCH_SI_TRAPNO support

Now that __ARCH_SI_TRAPNO is no longer set by any architecture remove
all of the code it enabled from the kernel.

On alpha and sparc a more explict approach of using
send_sig_fault_trapno or force_sig_fault_trapno in the very limited
circumstances where si_trapno was set to a non-zero value.

The generic support that is being removed always set si_trapno on all
fault signals.  With only SIGILL ILL_ILLTRAP on sparc and SIGFPE and
SIGTRAP TRAP_UNK on alpla providing si_trapno values asking all senders
of fault signals to provide an si_trapno value does not make sense.

Making si_trapno an ordinary extension of the fault siginfo layout has
enabled the architecture generic implementation of SIGTRAP TRAP_PERF,
and enables other faulting signals to grow architecture generic
senders as well.

v1: https://lkml.kernel.org/r/m18s4zs7nu.fsf_-_@fess.ebiederm.org
v2: https://lkml.kernel.org/r/20210505141101.11519-8-ebiederm@xmission.com
Link: https://lkml.kernel.org/r/87bl73xx6x.fsf_-_@disp2133
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

2021-07-23 13:14:13 -05:00

alpha

signal/alpha: si_trapno is only used with SIGFPE and SIGTRAP TRAP_UNK

2021-07-23 13:10:26 -05:00

arc

Kbuild updates for v5.14

2021-07-10 11:01:38 -07:00

arm

arm: Add compile-time asserts for siginfo_t offsets

2021-07-23 11:56:54 -05:00

arm64

arm64: Add compile-time asserts for siginfo_t offsets