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a0e31f3a38
Pull siginfo fix from Eric Biederman:
"During the merge window an issue with si_perf and the siginfo ABI came
up. The alpha and sparc siginfo structure layout had changed with the
addition of SIGTRAP TRAP_PERF and the new field si_perf.
The reason only alpha and sparc were affected is that they are the
only architectures that use si_trapno.
Looking deeper it was discovered that si_trapno is used for only a few
select signals on alpha and sparc, and that none of the other
_sigfault fields past si_addr are used at all. Which means technically
no regression on alpha and sparc.
While the alignment concerns might be dismissed the abuse of si_errno
by SIGTRAP TRAP_PERF does have the potential to cause regressions in
existing userspace.
While we still have time before userspace starts using and depending
on the new definition siginfo for SIGTRAP TRAP_PERF this set of
changes cleans up siginfo_t.
- The si_trapno field is demoted from magic alpha and sparc status
and made an ordinary union member of the _sigfault member of
siginfo_t. Without moving it of course.
- si_perf is replaced with si_perf_data and si_perf_type ending the
abuse of si_errno.
- Unnecessary additions to signalfd_siginfo are removed"
* 'for-v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo
signal: Deliver all of the siginfo perf data in _perf
signal: Factor force_sig_perf out of perf_sigtrap
signal: Implement SIL_FAULT_TRAPNO
siginfo: Move si_trapno inside the union inside _si_fault
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| .. | ||
| syscalls | ||
| .gitignore | ||
| asm-offsets.c | ||
| bootinfo_proc.c | ||
| dma.c | ||
| early_printk.c | ||
| entry.S | ||
| head.S | ||
| ints.c | ||
| irq.c | ||
| machine_kexec.c | ||
| Makefile | ||
| module.c | ||
| pcibios.c | ||
| process.c | ||
| ptrace.c | ||
| relocate_kernel.S | ||
| setup_mm.c | ||
| setup_no.c | ||
| setup.c | ||
| signal.c | ||
| sun3-head.S | ||
| sys_m68k.c | ||
| syscalltable.S | ||
| time.c | ||
| traps.c | ||
| uboot.c | ||
| vectors.c | ||
| vmlinux-nommu.lds | ||
| vmlinux-std.lds | ||
| vmlinux-sun3.lds | ||
| vmlinux.lds.S | ||