Diffusion FreeBSD src repository - subversion rS368454

Stack unwinding robustness fixes for RISC-V.
rS368454
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Description

Stack unwinding robustness fixes for RISC-V.

Push the kstack_contains check down into unwind_frame() so that it is honored by DDB and DTrace.

Check that the trapframe for an exception frame is contained in the traced thread's kernel stack for DDB traces.

Reviewed by: markj
Obtained from: CheriBSD
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D27357

Details

Provenance

jhb	Authored on

Reviewer

markj

Differential Revision

D27357: Stack unwinding robustness fixes for RISC-V.

Parents

rS368453: Missed adding netgraph to mtree in r368443:

Branches

Unknown

Tags

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Event Timeline

jhb committed rS368454: Stack unwinding robustness fixes for RISC-V..Dec 8 2020, 5:57 PM

jhb added an edge: D27357: Stack unwinding robustness fixes for RISC-V..

Changes (6)

Path

Size

head/

sys/

cddl/

dev/

dtrace/

riscv/

dtrace_isa.c

fbt/

fbt.c

riscv/

include/

riscv/

rS368454

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head/sys/cddl/dev/dtrace/riscv/dtrace_isa.c

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head/sys/cddl/dev/fbt/fbt.c

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head/sys/riscv/include/stack.h

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head/sys/riscv/riscv/db_trace.c

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head/sys/riscv/riscv/stack_machdep.c

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head/sys/riscv/riscv/unwind.c

Stack unwinding robustness fixes for RISC-V.rS368454Actions

Description

Details

Event Timeline

Changes (6)

rS368454

head/sys/cddl/dev/dtrace/riscv/dtrace_isa.c

head/sys/cddl/dev/fbt/fbt.c

head/sys/riscv/include/stack.h

head/sys/riscv/riscv/db_trace.c

head/sys/riscv/riscv/stack_machdep.c

head/sys/riscv/riscv/unwind.c

Stack unwinding robustness fixes for RISC-V.
rS368454
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