Diffusion FreeBSD src repository - subversion rS291852

Move the check to see if we are tracing a function with the DTrace Function
rS291852
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Description

Move the check to see if we are tracing a function with the DTrace Function
Boundary Trace to assembly to reduce the overhead of these checks.

Submitted by: Howard Su <howard0su@gmail.com>
Relnotes: Yes
Differential Revision: https://reviews.freebsd.org/D4266

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Differential Revision

D4266: Check dtrace invop earlier, shotcut if it is dtrace fbt exception.

Parents

rS291851: It seems that at least some KVM versions advertise support for EIO

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andrew committed rS291852: Move the check to see if we are tracing a function with the DTrace Function.Dec 5 2015, 9:32 AM

Changes (6)

Path

Size

head/

sys/

arm/

arm/

include/

cddl/

dev/

fbt/

arm/

rS291852

head/sys/arm/arm/exception.S

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head/sys/arm/arm/genassym.c

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head/sys/arm/arm/trap-v6.c

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head/sys/arm/arm/undefined.c

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head/sys/arm/include/trap.h

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

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