rtld: Microoptimize rtld_start on i386
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Authored by dchagin on Jul 9 2023, 12:15 PM.

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bdragon

imp

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kib

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rG86c63225ea21: rtld: Microoptimize rtld_start on i386

Summary

Initial stack pointer is always preserved in calle-saved %esi,
use it bellow to pass initial stack pointer to _rtld().

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Repository

rG FreeBSD src repository

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No Test Coverage

Build Status

Buildable 52521
Build 49412: arc lint + arc unit

Event Timeline

dchagin created this revision.Jul 9 2023, 12:15 PM

Herald added subscribers: bdragon, imp. · View Herald TranscriptJul 9 2023, 12:15 PM

dchagin requested review of this revision.Jul 9 2023, 12:15 PM

Harbormaster completed remote builds in B52521: Diff 124375.Jul 9 2023, 12:15 PM

dchagin added a reviewer: kib.Jul 9 2023, 12:17 PM

kib accepted this revision.Jul 9 2023, 1:45 PM

This revision is now accepted and ready to land.Jul 9 2023, 1:45 PM

Closed by commit rG86c63225ea21: rtld: Microoptimize rtld_start on i386 (authored by dchagin). · Explain WhyJul 11 2023, 12:12 PM

This revision was automatically updated to reflect the committed changes.

dchagin added a commit: rG86c63225ea21: rtld: Microoptimize rtld_start on i386.

Revision Contents
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Path

Size

libexec/

rtld-elf/

i386/

rtld_start.S

3 lines

Diff 124375

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libexec/rtld-elf/i386/rtld_start.S

rtld: Microoptimize rtld_start on i386ClosedPublicActions