Messages in this thread | | | Subject | Re: [PATCH 1/2] perf: Add munmap callback | From | "Liang, Kan" <> | Date | Tue, 6 Nov 2018 11:47:38 -0500 |
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On 11/6/2018 10:00 AM, Stephane Eranian wrote: >>> /* >>> * mmap 1 page at the location of the unmap page (should reuse virtual space) >>> * This creates a continuous region built from two mmaps and >>> potentially two different sources >>> * especially with jitted runtimes >>> */ >> The two mmaps are both anon. As my understanding, we cannot symbolize >> from the anonymous address, can we? > Can't we build the same test case using an actual file mapping (both > mmap from the same file)? >
If they are from same file, both mmap have same symbolization name. We don't need to distinguish them either.
I thought the symbolization issue can only happen when two mmaps are from different sources. Right?
Thanks, Kan
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