freebsd-src.git - FreeBSD sources

Age	Commit message (Collapse)	Author
2023-08-16	sys: Remove $FreeBSD$: two-line .h pattern	Warner Losh
	Remove /^\s\\n \*\s+\$FreeBSD\$$\n/
2023-02-02	kstack_contains(): account for struct pcb on stack	Konstantin Belousov
	for arm64, arm, powerpc, and riscv Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D38320
2023-02-02	Move kstack_contains() and GET_STACK_USAGE() to MD machine/stack.h	Konstantin Belousov
	Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D38320
2021-02-01	arm64: Improve DDB backtrace support	Jessica Clarke
	The existing implementation relies on each trap handler saving a normal stack frame record, which is a waste of time and space when we're already saving a trapframe to the stack. It's also wrong as it currently saves LR not ELR. Instead of patching it up, rewrite it based on the RISC-V implementation with inspiration from the amd64 implementation for how to handle vectored traps to provide an improved implementation. This includes compressing the information down to one line like other architectures rather than the highly-verbose old form that repeats itself by printing LR and FP in one frame only to print them as PC and SP in the next. It also includes printing out actually useful information about the traps that occurred, though FAR is not saved in the trapframe so we cannot print it (in general it can be clobbered between when the trap happened and now), only ESR. The AAPCS also allows the stack frame record to be located anywhere in the frame, not just the top, so the caller's SP is not at a fixed offset from the callee's FP like on almost all other architectures in existence. This means there is no way to derive the caller's SP in the unwinder, and so we have to drop that bit of (unused) state everywhere. Reviewed by: jhb, markj Differential Revision: https://reviews.freebsd.org/D28026
2020-12-08	Check that the frame pointer is within the current stack.	John Baldwin
	This same check is used on other architectures. Previously this would permit a stack frame to unwind into any arbitrary kernel address (including unmapped addresses). Reviewed by: andrew, markj Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D27362 Notes: svn path=/head/; revision=368455
2020-12-01	Use uintptr_t instead of uint64_t for pointers in stack frames.	John Baldwin
	Reviewed by: andrew Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D27361 Notes: svn path=/head/; revision=368245
2015-06-11	Split out db_unwind_frame() so it can be used by DTrace.	Ruslan Bukin
	Sponsored by: ARM Ltd. Differential Revision: https://reviews.freebsd.org/D2741 Notes: svn path=/head/; revision=284257
2015-04-13	Bring in the start of the arm64 kernel.	Andrew Turner
	This is only the minimum set of files needed to boot in qemu. As such it is missing a few things. The bus_dma code is currently only stub functions with a full implementation from the development tree to follow. The gic driver has been copied as the interrupt framework is different. It is expected the two drivers will be merged by the arm intrng project, however this will need to be imported into the tree and support for arm64 would need to be added. This includes code developed by myself, SemiHalf, Ed Maste, and Robin Randhawa from ARM. This has been funded by the FreeBSD Foundation, with early development by myself in my spare time with assistance from Robin. Differential Revision: https://reviews.freebsd.org/D2199 Reviewed by: emaste, imp Relnotes: yes Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=281494