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

Description

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

(cherry picked from commit e8b2980e4a126407e15d33ee8d987385c8321261)

Details

Provenance
kibAuthored on Aug 18 2022, 4:07 AM
Parents
rGcd304fdbe95b: i386: do not allow userspace to set tf_trapno on sigreturn(2)
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