Diffusion FreeBSD src repository e8b2980e4a12

i386 doreti: stop saving/restoring %ecx around calls into C
e8b2980e4a12
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Description

i386 doreti: stop saving/restoring %ecx around calls into C

There is no reason to do this. Instead just calculate it later.

Reviewed by: jhb
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D36302

Details

Provenance

kib	Authored on Aug 18 2022, 4:07 AM

Reviewer

Differential Revision

D36302: Series of fixes for i386

Parents

rGdc4a2d1d0e83: i386: do not allow userspace to set tf_trapno on sigreturn(2)

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Event Timeline

kib committed rGe8b2980e4a12: i386 doreti: stop saving/restoring %ecx around calls into C (authored by kib).Aug 24 2022, 7:12 PM

kib added an edge: D36302: Series of fixes for i386.Aug 24 2022, 7:25 PM

kib mentioned this in rG79ceb5107b3b: i386 doreti: stop saving/restoring %ecx around calls into C.Aug 31 2022, 1:32 AM

tijl mentioned this in rGcfdc649e455b: i386 doreti: Fix calculation of stack frame size.Sep 2 2022, 2:44 PM

tijl mentioned this in rG5d45f99a1ed8: i386 doreti: Fix calculation of stack frame size.Sep 2 2022, 3:06 PM

Changes (1)

Path

Size

sys/

i386/

i386/

rGe8b2980e4a12

sys/i386/i386/exception.s

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