[Webkit-unassigned] [Bug 201154] New: [bmalloc] Disable IsoHeap completely if DebugHeap is enabled

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201154

            Bug ID: 201154
           Summary: [bmalloc] Disable IsoHeap completely if DebugHeap is
                    enabled
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: bmalloc
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ysuzuki at apple.com
                CC: ggaren at apple.com

When DebugHeap is enabled, we would like to get information about Malloc.
In this case, enabling IsoHeap makes Malloc stack logging information broken for IsoHeaped one.
This is not what we want. Given that,

1. IsoHeap is currently only used for WebCore and upper
2. Gigacage is also disabled when DebugHeap is enabled
3. The existing code is assuming that IsoHeap should be disabled when DebugHeap is enabled

we should disable IsoHeap if DebugHeap is enabled.

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