This more clearly differentiates system call arguments from integer
registers and return values. On current architectures it has no effect,
but on architectures where pointers are not integers (CHERI) and may
not even share registers (CHERI-MIPS) it is necessiary to differentiate
between system call arguments (syscallarg_t) and integer register values
(register_t).
Obtained from: CheriBSD
Reviewed by: imp, kib
Differential Revision: https://reviews.freebsd.org/D33780
This can leak kernel stack data otherwise.
Reviewed by: imp, markj
Sponsored by: The University of Cambridge, Google, Inc.
Differential Revision: https://reviews.freebsd.org/D34594
This register set exposes the per-thread TLS register. It matches the
layout used by Linux on arm64. Linux does not implement this note for
32-bit arm.
Reviewed by: andrew, markj
Sponsored by: University of Cambridge, Google, Inc.
Differential Revision: https://reviews.freebsd.org/D34595
This includes adding support for NT_ARM_VFP for 32-bit binaries
running under aarch64 kernels both for ptrace(), and coredumps via the
kernel and gcore.
Reviewed by: andrew, markj
Sponsored by: University of Cambridge, Google, Inc.
Differential Revision: https://reviews.freebsd.org/D34448
Use nanotime instread of binuptime.
This change is for old and legacy platforms and does not impact any armv7 and later.
Might be MFCed to 13.0 once armv6 support is finally dropped in 14.0
Sponsored by: Stormshield
Reviewed by: mw
Obtained from: Semihalf
Differential revision: https://reviews.freebsd.org/D33719
To handle the different register layouts for different versions, add a
GIC_DB_SHOW() method. Currently this hook is only implemented for
versions 1 and 2.
Sponsored by: University of Cambridge, Google, Inc.
Differential Revision: https://reviews.freebsd.org/D34415
We assume EFI_PAGE_SIZE is the same as PAGE_SIZE, however this may not
be the case. Use the former when working with a list of pages from the
UEFI firmware so the correct size is used.
This will be needed on arm64 where PAGE_SIZE could be 16k or 64k in the
future. The other architectures have been updated to be consistent.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34510
The only valid condition for if_awg and aw_syscon is syscon.
EXT_RESOURCES is enabled in GENERIC since 12-CURRENT.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33833
EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33832
EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33831
EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33830
EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.
Reviewed by: kevans
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33829
Add a static assert for the siginfo_t, mcontext_t and ucontext_t
sizes. These are de-facto ABI options and cannot change size ever.
Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D34210
