[webkit-changes] [WebKit/WebKit] 2cc0a6: [Darwin] Call `sys_icache_invalidate()` directly i...

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2cc0a6b10cf0baa6837106ba91a4ac92d59c516a
      https://github.com/WebKit/WebKit/commit/2cc0a6b10cf0baa6837106ba91a4ac92d59c516a
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-03-14 (Tue, 14 Mar 2023)

  Changed paths:
    M Source/JavaScriptCore/assembler/ARM64Assembler.h
    M Source/JavaScriptCore/assembler/ARMv7Assembler.h

  Log Message:
  -----------
  [Darwin] Call `sys_icache_invalidate()` directly in `ARM64Assembler::flushCache()`
https://bugs.webkit.org/show_bug.cgi?id=253904

Reviewed by Justin Michaud.

Call `sys_icache_invalidate()` directly in `ARM64Assembler::flushCache()`.
Previously, we'd call `sys_cache_control(kCacheFunctionPrepareForExecution)`,
which would have to do a switch on its parameter before calling
`sys_icache_invalidate()`.

* Source/JavaScriptCore/assembler/ARM64Assembler.h:
* Source/JavaScriptCore/assembler/ARMv7Assembler.h:
(JSC::ARMv7Assembler::cacheFlush):

Canonical link: https://commits.webkit.org/261661@main